Find Out if Your iPhone 6s / 6s Plus Has a Good or Bad A9 CPU [u]

As previously reported, the A9 processor of the iPhone 6s and 6s Plus were dual sourced by Apple from Samsung and TSMC. However, the differences between the two chips was not evident before, though some fans assumed the smaller 96mm² by Samsung would be the superior chip. Turns out, the TSMC A9 has approximately 2 hours better battery performance than the Samsung chip, as confirmed by results of several tests conducted and reported by users via forums on Reddit and MacRumors (via Engadget).


An unsigned program by a developer named Hiraku Jira (download and install at your own risk) lets you identify which chip is in your iPhone 6s or 6s Plus, and is also charting the results of everyone who tests their device. The source notes that 70% of 6s phones have the TSMC processor while only 40% of 6s Plus phones have the TSMC inside.

You can also identify your processor though a free app called Lirum Device Info Lite directly from the App Store (UPDATE: Lirum Free has been pulled; try this app instead). Simply open the app and look at the main page under “Model” the results are:

  • N66AP (6s plus) or N71AP (6s) – Samsung chip
  • N66MAP (6s plus) or N71MAP (6s) – TSMC chip

So guys, did you get your iPhone 6s with the good A9 chip or the (relatively) bad one?

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  • chrisancheezy

    I got the USMAN chip.

  • Mark Holoubek

    Awesome! I have the N66MAP chip! No Samsung! (Wish I had the USMAN chip though ;-))

  • Kamal

    I was wondering how come my 6splus had this good battery life. I have the N66mAp

  • Darmok

    My 6S plus has been significantly better than my 6 plus which was really good. Yup, N66mAP.

  • poopchute

    The “System Status” app also lists the chip. I’m not sure if its accurate, but It says I have the Samsung. (sniff sniff)

  • Lol that chip is the best!

  • Ryan Peterson

    So I have the N71AP (6s) Samsung chip. Is there relation between this chip and the issue with the phone auto-magically rebooting or just going black (my AppleWatch still sees the phone; just the screen is black) and needs a hard reboot?

  • Mac

    N71AP.. God damn it!!!

    Is there a way to replace the phone?

  • Marc Dubé

    Could serial number tells difference ? Usefull when you want to by one without opening the box ….

  • 1His_Nibs1

    Is there a way to tell by any other means? I’m waiting on a 6s plus & wonder if I can take back if I get the shittier chip. Anyone know if Apple will take care of you? Or is it the luck of the draw & too bad for you.

  • 1His_Nibs1

    I’d like to know that too!

  • Jezzah

    N66mAP master race here

  • McNucklefuts

    I have the Samsung one I think. According to the code from the free app.

  • McNucklefuts


  • Woot!! N71MAP for me on my iPhone 6s
    I used the free system status app that Poopchute mentioned to find out

  • dvdung1997

    I used to want to change my Gold iPhone 6s Plus to Space Grey, but now I don’t want to anymore, as I’ve just discovered that my Gold iPhone has the N66mAP chip!

  • Ex

    TSMC 6S+ ftw!

  • You da man, Ex

  • Same here!

  • Ex

    We are the 40%.

  • johnnygoodface

    Ouf! Got the TSMC N66MAP chip!

  • 1His_Nibs1

    Which phone 6s or plus?

  • 1His_Nibs1

    I hope that video is right otherwise I see a class action lawsuit against Apple for misrepresentation.

  • Cowboy Up

    Mine is the N71MAP (6s) – TSMC chip. But compared to my iPhone 6 it has a pretty bad batery life. It’s lasting 3 hours less than my iPhone 6 with the same configuration. I’m very disappointed about that.

  • 1His_Nibs1

    Do you have Apple Care? If so I’d try to get it changed. Nothing to lose. If they do replace it can you reply back to me? I’d greatly appreciate it.

  • Mac

    Unfortunately I don’t. I didn’t not foresee this situation! lol

  • wuju

    Mine is the iPhone 6S, space grey with model N71mAP

    Anyone having a spinning wheel next to the wifi signal on theirs with the latest iOS 9.0.2.

    Reset my network setting and it went away for a little while, and now it’s back and spinning all the time. I do believe it cause battery drain… any solution to this?

  • Crosseyedmofo



  • Raz

    You can still get it. You have 30days.

  • bionicmonk

    Woohoo! I need to change my pickup lines to reflect this new development.

  • bionicmonk

    14 days from the Apple store.

  • Lol

  • 1His_Nibs1

    30 days from who? Best Buy, your carrier? How would one go about getting it replaced? What would be the reason? Battery issues?

  • xxxJDxxx

    S8003?? Anyone else get that?

  • What app are you using?

  • xxxJDxxx

    The “unofficial” one you guys linked to Above

  • Kevin

    Returning it.

  • Raz

    30 days to activate apple care. :/

  • 1His_Nibs1

    Cool! Thanks ; )

  • OliChabot

    The app tells me I have the TMSC chip, altough I found that my 6S doesn’t have the best battery and I mostly need to charge it before the end of the day. I can’t imagine people with Samsung…

  • 1His_Nibs1

    N66MAP!!!!!!!! YEAH!!!!!!!! FTW!!!!!!!