iPhone 6 (not 6s) shut down with iOS 10.2

Over a week now on the "new" (actually Apple refurbished) iPhone 6 and end of problems. Wife is happy and getting full day battery and then some again. IDK, at this point I just suspect some of the iPhone 6 batteries are just poor / short-lived. As for the accounts of batteries jumping from xx% to shutdown, our iPhone 6 did this and I have seen this behavior in other devices with batteries that were bad. For what its worth. If reset to Factory / set up as new device doesn't work, you might consider the Apple offered battery replacement for US$79.

Glad that other iPhone 6 users are experiencing this shut down problem as thought it was just me. Have moved to a new country in Europe and every time I leave the apartment and use the phone it shuts down. If it is ios 10.2 what can we do about it? It's driving me mad and making this move even more stressful than it already is! Thanks for any tips, Alex (and Happy New Year!)

With my wife's 6, tried a complete wipe of the phone a couple of days ago. Erase all content and settings. Set up as new. No performance improvement. This was Apple's advice as some upgrades go awry for unknown reasons. So that leaves us battery replacement to try. Apple also think this is the right next step. Wife is kind of pushing for upgrade to 7 and just be done with the problematic phone. I want to replace battery and see if really does cure the problem. We will see where we end up in the coming week.

$79 by Apple, no Apple Care that applies / helps.

I've popped out a few screens and batteries myself over time, but have not been happy with the batteries. I don't have a good source and wind up with a battery that fails in 12-18 months. So, I've sworn off self replacement.

Ok, this time (the third) when I took phone to Apple, I made sure it was discharged a bit (about 70% remaining). When I took it in fully charged, Apple's diagnostic read battery as good on two occasions. But I knew better so tried this discharged state and Apple's diagnostic showed a bad battery this time.

So I told them I was ready to replace for $79. He went about entering the information and we chatted about the fact there was no problem before iOS 10 and could this be a coincidence. He didn't know but said issues like this increased after iOS 10 in his experience.

I asked him what happens if the issue persists beyond the battery replacement because I'm not sure its just a coincidence with the iOS 10 update. He said they would replace phone as next step within 90 days if problem persisted and this sounded good to me.

He finished entering the battery change request and his system told him to replace iPhone 6 today rather replacing battery. He didn't know why but speculated maybe someone in the system knows something more about this battery fast dying and cutting off for no apparent reason with somewhere between 30-50% battery life showing than he does.

So, I'm home with a replacement, Apple refurbished iPhone 6. I'm pretty sure that will solve my issues and will try to post in a week if battery life is normal again. If I forget it will be because there is no longer a problem.

Yes, I paid the $79 for a battery replacement, but their system told him to replace the phone rather than repair for that price. Can only speculate as to why.

I will say the sudden death syndrome (say 30% battery to iPhone off in a blink) is a common death spiral for batteries in my experience with iPods (4th and 5th gen). I would assume the same applies to iPhones but I resell those sooner. Its just that the timing with iPhone 6 and iOS 10 feels too coincidental for me given the battery life I got from other iOS devices since iPhone 1 was much longer than 2 years (3-4 years). I can't rule out I got a lemon this time either though.

I was using an ad supported free app simply called Battery Life. However this morning when I went to grab you a link, I am told it has been removed from the App Store. I read battery doctor was good but costs money and I don't know how well any of these apps actually work.

So, my wife and I each have iPhone 6 that are about 18 mos old. They started doing exactly the same thing starting in early December, then got progressively worse. Hers became wildly unreliable, and mine was getting worse and a problem because it is my main phone for work and would die anywhere between 70% to 20% instantly, with no warning.

We are out of warranty but have premium handset insurance through our carrier and they replaced both phones with refurbished iPhone 6 on 12/23 since it is an electrical malfunction or caused by misuse or damage.

Both of our replacement phones are now doing it again. Mine shut off 5 times within an hour yesterday, with no significant apps or other use. Just trying to send a text or view a website.

4 out of 4 have turned out to be lemons for us. Our neighbor is having the same problem and just did a warranty claim through Apple.

I believe it is either software related and they won't fess up to it, or it is a widespread battery issue that they are going to try to ride out.

Anyone remember the infamous antenna issue on one of the early models when Apple told people they were just holding the phones incorrectly -- rather than admitting the antenna design was flawed?

Also, I think it's SW because when the phone shuts down, it doesn't just die instantly like when the battery is truly dead. Usually I can see that the screen has power (as if it is displaying a black screen with the tiniest bit of backlight) for about 15 seconds before shutting off completely. Usually when I plug it back in, it will restart to the apple logo almost instantly without pressing the power button and display the same percentage I had before it **** down. Sure seems like a bug.

Come on, Apple. You are seriously losing confidence out here.....

Curious if anyone else out of warranty has been able to get anywhere.

Mine does same. Mine is 6s and I've reset several times. It will go dead at 60 and 70 percent and not turn back on until I hook it up. Then comes back on showing 60-70 percent charged. It's really becoming an issue to me esp with a teenage driver in the household. They aren't going to trick me into upgrading bc this phone is practically new. Only thing the are going to do is make me go Samsung

Hello,

I have Iphone 6. After IOS 10.2 upgrade battery percentage remains 100% and suddenly shut down after a while. I reset phone several times. I also tried two different battery in authorized apple repair shop but result is same. Unfortunately it happened 1 month later after warranty date. Is there any way to downgrade IOS or replace phone free of charge?

Thanks,

I have the same problem... APPLE SUPPORT CENTER DOESN't help at all... they are saying everything is fine ( warranty is over) and i should go to service and pay for it

I m very dissopinted..... I'm not going to buy another device from that company.....same thing with iphone6 plus

{"timestamp":"2017-01-11 21:47:47.45 +0100","bug_type":"120","os_version":"iPhone OS 10.2 (14C92)","incident_id":"BCEA5712-4FED-4506-8897-7684A7DA2661"}

{"bug_type":"120","os_version":"iPhone OS 10.2 (14C92)"}

Incident Identifier: A77C0B77-EF62-4B6F-9598-0125703213E5

CrashReporter Key: 2557b95695c7b84c6960c8264d35326a6f5e9bf8

Date: 2017-01-11 21:47:47 +0100

OS Version: iPhone OS 10.2 (14C92)

SpringBoard: com.apple.springboard.idle

NoIdleSleepAssertion == 255, held for 00:00:11

UserEventAgent: com.apple.KeyboardServices.TextReplacementCKSyncTask

BackgroundTask == 255, held for 83:37:57

Hardware Model: N61AP

Awake Time: 05:44:46 (20686)

Standby Time: 29:00:21 (104420)

Partial Charge: 1

Capacity: 0

Voltage: 3495 mV

Nr 2

{"timestamp":"2017-01-08 09:42:06.30 +0100","bug_type":"120","os_version":"iPhone OS 10.1.1 (14B100)","incident_id":"60A0F00E-26C4-495A-ACBB-F7F16F968212"}

{"bug_type":"120","os_version":"iPhone OS 10.1.1 (14B100)"}

Incident Identifier: C1F48AD7-4EF7-4811-B231-7EB25B8FA229

CrashReporter Key: 2557b95695c7b84c6960c8264d35326a6f5e9bf8

Date: 2017-01-08 09:42:06 +0100

OS Version: iPhone OS 10.1.1 (14B100)

mediaserverd: com.apple.audio.VAD [vdef] AggDev 22.context.preventuseridlesleep

PreventUserIdleSystemSleep == 255, held for 00:00:00

assertiond: :27-16C60EB8-A475-4735-95E3-539EAA053A90 [CMSession.1400."com.apple.Music"."Audio/Video".isPlayingProcessAssertion] [0x10030ce70]/1400-CA246E91-F60F-4665-8355-03E59BACC3EC [com.apple.StoreServices.SSSQLiteDatabase.kvs.sqlitedb] [0x100426e90]/1400-A78C0177-D2B1-4E65-9C4A-E68555010641 [MPAVQueueCoordinator] [0x10041d790]

NoIdleSleepAssertion == 255, held for 00:00:02

SpringBoard: com.apple.springboard.idle

NoIdleSleepAssertion == 255, held for 00:00:20

Hardware Model: N61AP

Awake Time: 04:01:28 (14487)

Standby Time: 19:10:54 (69054)

Partial Charge: 0

Capacity: 0

Voltage: 3483 mV

Nr3

{"timestamp":"2017-01-05 13:14:13.13 +0100","bug_type":"120","os_version":"iPhone OS 10.1.1 (14B100)","incident_id":"3115CF09-4121-4EA0-B42C-BF24FFAABB40"}

{"bug_type":"120","os_version":"iPhone OS 10.1.1 (14B100)"}

Incident Identifier: 6F5E942C-28F9-4045-A56A-433212BC0A8B

CrashReporter Key: 2557b95695c7b84c6960c8264d35326a6f5e9bf8

Date: 2017-01-05 13:14:13 +0100

OS Version: iPhone OS 10.1.1 (14B100)

mediaserverd: com.apple.audio.VAD [vdef] AggDev 3246.context.preventuseridlesleep

PreventUserIdleSystemSleep == 255, held for 00:00:07

mediaserverd: com.apple.audio.sid:0x33132, assistantd(23710), 'prim'(assistantd).isplaying

NoIdleSleepAssertion == 255, held for 00:00:08

mediaserverd: com.apple.audio.pid-23729.keypress.isprewarmed

NoIdleSleepAssertion == 255, held for 00:00:21

UserEventAgent: com.apple.routined.sync.coreroutine

BackgroundTask == 255, held for 49:29:41

SpringBoard: com.apple.springboard.idle

NoIdleSleepAssertion == 255, held for 00:00:21

Hardware Model: N61AP

Awake Time: 03:27:30 (12449)

Standby Time: 24:08:52 (86931)

Partial Charge: 0

Capacity: 0

Voltage: 3446 mV