Quantcast

Is Your iPhone 4 Suffering from Battery Drain on iOS 4.3.3?

The latest release of iOS 4.3.3 included changes to modify iOS location tracking. But there are some existing issues people have been experiencing in this latest iOS release such as WiFi issues and signal drops.

iPhoneinCanada.ca reader Anthony gave us the heads up on this 9-page long Apple Support Communities thread documents an issue of battery drain users are experiencing on iOS 4.3.3 on their iPhone 4. People have tried restoring, turning off Push, but still the drain occurs.

For jailbroken iOS 4.3.3 users, battery drain is always an issue but it appears the combination with this recent iOS release has made it a lot worse.

Are you experiencing battery drain issues on iOS 4.3.3 on your iPhone 4? Follow these tips from Apple to maximize your battery life.

Founder and Editor-in-Chief of iPhoneinCanada.ca. Follow me on Twitter, and @iPhoneinCanada, and on Google+.

  • n8

    SO MUCH battery drain, it’s crazy, I could go a day without needing to recharge, I’m lucky to get to 3pm without needing to now

  • Glo2l

     I updated last week from 4.1 and have deep regrets. Huge battery drain, my phone could be in sleep mode and i’ve checkd in an hour with a 10-12% drain, signal issues and experienced dropped calls.. It’s very noticeable coming from fw 4.1. I WANT MY PHONE BACK TO 4.1. dammit

  • Weebsurfer

    Yeah. Starting to notice it more and more. Also see my signal bounce around like crazy at times. Dropped 3G more than once a week. I say the root of the battery drain issues is whatever is going on with signal. That’s where the iPhone seems to fail. It puts A LOT of effort into maintaining a crappy signal.

  • Drocass

    None here. I go to work and use Bluetooth + music for 8 hours + a couple emails and texts and still go home with 65-70% 50% by bedtime with moderate to heavy use. Couldn’t be happier on 4.3.3 (JB or non-JB it’s about the same)

  • Leadergo

     Actually, back on 4.2.1, I was experiencing massive amounts of battery drainage. In fact I bought a Mophie just to ease the pain of having to charge my phone twice, sometimes three times a day. After I updated to 4.3.1, the battery went back to normal.

  • Redcow

     I have not ventured to update the firmware and still on 4.3.2 as 4.3.3 isn’t a very important update to me.  My phone’s been off charge since 7am and with emails, phone calls, web, I still have about 80% at almost 6pm.  My phone is jailbroken.  My advice, avoid 3d games and any jailbreak apps that is consistantly using processor such as MyWi or anything from this and other developers that changes too much of the iOS.

  • Ryan

     Interesting that Apple releases an update that supposedly only removes the huge location data cache from the phone, and now the phones are using more juice to find and maintain cell signals, and to find your location when GPS kicks in as well. Coincidence? Or is it testament to how useful that location cache actually was?

    I’m personally leaning towards coincidence, but it’s a very interesting coincidence.

  • Anonymous

    I noticed the big difference between 4.3.2 and 4.3.3. I use iPhone 4 and jailbroken on both versions. I had a pretty good battery usage while on 4.3.2 but now I can feel the pain after updated to 4.3.3.

    Follow Apple’s tips to save battery by “turning off” those functions? Are they stupid or what? If I don’t need those functions or services, I could have just got myself a regular mobile phone. Those tips make me very disappointed with Apple. After all, they are as stupid as MS.

  • Nick

    Odd I haven’t had a problem at any time on my ip4 jailbroken

  • Nick

    And I sometimes go a day without charging it and don’t plug it in until the next day noon. I don’t use winterboard though – I think for some people that causes some drain.

  • http://twitter.com/Chrome262 Chrome262

     Isn’t this a common complaint with each updated, i think the suggestion of a clean restore is the way to go, and avoid back up. I don’t see any different between 4.3.2 or 4.3.3. There was a slight drop with some of the apps i used from 4.3.1 and .2 so what i might be seeing is a continuation of the problem. i might restore clean.

  • http://twitter.com/Chrome262 Chrome262

     Isn’t this a common complaint with each updated, i think the suggestion of a clean restore is the way to go, and avoid back up. I don’t see any different between 4.3.2 or 4.3.3. There was a slight drop with some of the apps i used from 4.3.1 and .2 so what i might be seeing is a continuation of the problem. i might restore clean.

  • Drocass

     Agreed… The only time I experienced Battery Drain when I was installing Beta iOSs which is to be expected. other than that I have never really experienced anything out of the ordinary and for the most part I almost always do a clean restore.

    A few of my friends actually experience similar problems when they update a Jailbroken iPhone to a new OS that some of the files must get left behind in the update process thus causing some problems. like most iPhone issues, all fixed by a restore.

  • Adrian Domanico

     I swear every update there is a discussion about “X.X.X battery drain” that pops up! Its either you’ve jail broken your phone and installed some bogus app thats eating your battery or its all in your head. I haven’t had any problems at all with my battery since I got it on launch day or any iPhone I have ever owned.

  • Sherryweavers

    My iPhone 4 had amazing battery life (st least 8hrs). I updated when 4.3.2 came out, and from that point on I was only getting about 4 hours with my battery. NOTHING changed except the update. I’ve been so upset because I no longer could use my phone the way I was previously. I’ve had to turn so much off like push notifications, and iTunes. (A full restore didn’t work)

  • http://twitter.com/Chrome262 Chrome262

    I agree, its most likely apps in general, when i use apps like kindle and other readers i see more of a drain.

  • http://www.zadig.ca Mario Gaucher

    For those who have a lower battery life after the 4.3.3 update, please tell us if your iPhone is jailbreaked or not…

    Mine is not jailbreaked at all…

    My iPhone is off the charger since 7am (it’s 9:45pm now). Usage is at 3 hours. Push email is enabled. And the battery is at 65%. Now…
    Not bad at all…

  • Luca

     I dont no what your saying its the same

  • jp

     getting crazy battery drain. my phone is now draining while i’m sleeping overnight. i wake up and it’s dead…cold dead.  i usually wake up and it’s lost maybe 5-10%.  i’m on 4.3.3 and not jailbroken.

  • Junior Cortorreal

    My iPhone is suffering my dropped calls I keep getting a lot of (call failed) with 4.3.3

  • Alanleung

    I found that disable Facebook’s GPS help alot on battery drain….
    Since the April update, my phone cannot last more than 10 hours.  Now, it back to the usual 1 day cycle.

  • Anthony

    I was the one who send the tip and it seems like it has to do with email was stuck keep checking for update causing battery drain & HUGE DATA CONSUMPTION! My data usage is currently over 2G when I can hardly go over 1G previosly. The quick fix is to delete all email accounts, reboot device and add them back again. Good luck!

  • Thisguy

    Non jailbroken iPhone here, and it seems like my battery life has even gotten better, usually when I leave my phone on overnight, my battery would drop around 5%, now it doesn’t drop at all, in fact I can go about 3 hours playing dead space and using my phone heavily and drop maybe 20% max

  • Thisguy

    Non jailbroken iPhone here, and it seems like my battery life has even gotten better, usually when I leave my phone on overnight, my battery would drop around 5%, now it doesn’t drop at all, in fact I can go about 3 hours playing dead space and using my phone heavily and drop maybe 20% max

  • macuser

     Installed 4.3.3 a week ago using the “Restore” option (not “Update”) and used Redsn0w to jailbreak it.  Then turned off Ping under settings – > restrictions.  With normal use, battery is around 60% by end of day.  Not bad. About the same as it was on 4.3.2, and 4.3.1, and 4.2.1.  Milage seems to vary for different people no matter what release.

  • Anonymous

    Absolutely has gotten worse with my stock iPhone 4 (no jailbreak or beta software).  I have found that, especially in areas where I have poor cell reception (like at my desk at work, where we have a bit of shielded glass), my phone seems to be seeking signal more often, and often drops data (even though it indicates 2 bars and 3G).  Even in normal usage outside the office, I have encountered more data drops. 

  • Mirzank

    I switched from 3gs to i4 just so I could get battery life more than 12-14 hrs. My 3GS would last me from around 8 am till 6-7 pm before I had to star shutting down all kids of functions to get through day. Non jb. Got i4. Already on 4.3.2. Horrible battery life. Just a bit more than 3GS. I upgrade both 3GS and i4 to 4.3.3 hoping for a fix, the 3GS with no push, gps off, 3G off, is now basically lasting about 6-8 hours barely on JUsT STANDBY!!! Unplug at 8 am already almost dead at 2-3 pm. Also on both phones 3g and push is off.

    I tried restoring both and setting as new. No difference. My brother has a jb i4 on I think 4.1. His battery lasts a ridiculous amount of time. Last I checked he would have 20-25 % left since standby of 13-15 hours since last charge.

    I used to think I was imagining these battery issues previously. But it just so co incidentally happens that this time i have 3 iPhones under same roof so I can comare and there is most definitely without a doubt serious battery issues.

  • Rahzadan

    I have a jailbroken iPhone 4, and I am not experiencing any battery drain issues whatsoever on 4.3.3. In fact, my battery life has never been better. Been off the charger for 5+ hours now with occasional usage, and battery is still at an amazing 96%. No wifi or signal drops. This issue people are reporting HAS to have something to do with an app they’re running. Maybe we should get everyone who’s having the issue to list what apps they use and see if one is in common to everyone?

  • Zigzagzoo

     When i got the new ios my iphone 4 continuously dropped calls and the battery is dropping dramatically. I say they should release a new ios fixing these big problems.

  • AJKR

    But I didn’t change my apps and I was getting perfectly acceptable batt life beforehand, and now I have to charge two or three times to make it through the day.  It’s ridiculous. 

  • Diogonev

    Up to 4.2 it was ok. But since 4.3 battery has been a lot worse no doubt.

  • danielle

    Updated my iphone 4 with ios 4.3.3 two days ago. First night I went to bed with battery life at 80 percent, woke up with 20 percent remaining. So I charged the battery again, and at about 9pm my battery had at least 65 percent, woke up with 11 percent remaining. I dont understand why my battery is draining when I’m not even using my phone…

  • danielle

    Oh, and my iphone is not jailbroken or unlocked and is less than 3 months old.

  • cwh

    I believe adding a restriction to Ping (Settings->Restrictions) I think has solved my problem. Doing this has made my phone battery last like 4.1 iOS. I read up on the apple discussion forums and tried a different  suggestions but the Ping one seems to work for me. Others have found that the AC charge to 100% then turn off then sync with iTunes seems to be the trick for other people.

    I also disabled Location Data for Camera and apps that don’t really need it but not sure if this was the real reason.

  • cwh

    I believe adding a restriction to Ping (Settings->Restrictions) I think has solved my problem. Doing this has made my phone battery last like 4.1 iOS. I read up on the apple discussion forums and tried a different  suggestions but the Ping one seems to work for me. Others have found that the AC charge to 100% then turn off then sync with iTunes seems to be the trick for other people.

    I also disabled Location Data for Camera and apps that don’t really need it but not sure if this was the real reason.

  • cwh

    I believe adding a restriction to Ping (Settings->Restrictions) I think has solved my problem. Doing this has made my phone battery last like 4.1 iOS. I read up on the apple discussion forums and tried a different  suggestions but the Ping one seems to work for me. Others have found that the AC charge to 100% then turn off then sync with iTunes seems to be the trick for other people.

    I also disabled Location Data for Camera and apps that don’t really need it but not sure if this was the real reason.

  • cwh

    I believe adding a restriction to Ping (Settings->Restrictions) I think has solved my problem. Doing this has made my phone battery last like 4.1 iOS. I read up on the apple discussion forums and tried a different  suggestions but the Ping one seems to work for me. Others have found that the AC charge to 100% then turn off then sync with iTunes seems to be the trick for other people.

    I also disabled Location Data for Camera and apps that don’t really need it but not sure if this was the real reason.

  • Bern_ts

    3Gs on 4.3.3 was looking at about 1% drain per minute.
    Brought it to the Apple Store and they replaced it even though their diags said there wasn’t any issue.
    The replacement had 4.2.1 on it, and i haven’t upgraded, and i am getting a full 24 hours on a single charge with regular use (iPod and angry birds).

  • Bern_ts

    3Gs on 4.3.3 was looking at about 1% drain per minute.
    Brought it to the Apple Store and they replaced it even though their diags said there wasn’t any issue.
    The replacement had 4.2.1 on it, and i haven’t upgraded, and i am getting a full 24 hours on a single charge with regular use (iPod and angry birds).

  • Bern_ts

    3Gs on 4.3.3 was looking at about 1% drain per minute.
    Brought it to the Apple Store and they replaced it even though their diags said there wasn’t any issue.
    The replacement had 4.2.1 on it, and i haven’t upgraded, and i am getting a full 24 hours on a single charge with regular use (iPod and angry birds).

  • Bern_ts

    3Gs on 4.3.3 was looking at about 1% drain per minute.
    Brought it to the Apple Store and they replaced it even though their diags said there wasn’t any issue.
    The replacement had 4.2.1 on it, and i haven’t upgraded, and i am getting a full 24 hours on a single charge with regular use (iPod and angry birds).

  • Bern_ts

    3Gs on 4.3.3 was looking at about 1% drain per minute.
    Brought it to the Apple Store and they replaced it even though their diags said there wasn’t any issue.
    The replacement had 4.2.1 on it, and i haven’t upgraded, and i am getting a full 24 hours on a single charge with regular use (iPod and angry birds).

  • Bern_ts

    3Gs on 4.3.3 was looking at about 1% drain per minute.
    Brought it to the Apple Store and they replaced it even though their diags said there wasn’t any issue.
    The replacement had 4.2.1 on it, and i haven’t upgraded, and i am getting a full 24 hours on a single charge with regular use (iPod and angry birds).

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck! 

  • mkisawesome

    Often applications fail proper installation and a process can hang, causuing repetitive instruction calls (even in standby). With such a process continuously running on your iPhone, the battery drain can be significant – up to 25% or more in an hour. Here are a few solutions that have worked for me (it’s happened to me on three separate handsets of the iPhone):1) Do a hard reset – Hold the home and sleep buttons down together for approximately 10 seconds until the phone turns off. Wait a few second, then repeat to turn it back on. THIS WILL NOT ERASE any of your data or lose any of your setting, rather just a flash memory reset.2) If that does not solve the problem, follow this procedure:1. Under Settings, go to Mail/Contacts/Calendar – tap the name of the Exchange account. You will see 3 switches. Turn them off (repeat for each account), then back out of Settings. Do not turn off PUSH; only turn off the 3 switches. You may receive warning messages – go ahead and accept these – this data will be restored from your accounts once the switches are turned back on.2. Open the apps one at a time, first Mail, then Contacts, then Calendar so these apps apply the changes.3. Hold the home button for a few seconds and close all multitasking apps,4. Turn off your phone, wait a few seconds, then turn it back on,5. Go back into Settings and turn the 3 switches back on.Usually the hard reset will solve the problem on its own, but the mail reset may be necessary in cases where the mail application is causing the process error. Good luck!