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iPhone 5s Crashing

My 5s started crashing now, too...

I have been using it for over a week until today and didn't experience any problems so far.
Until yesterday my 5s runned with my good old iphone 4 backup, which is over 3 years old -> absolutely no crashes/reboots.

BUT - yesterday i just wanted to try something out. So, I made a complete clean restore and set the phone up as new. I just wanted to see whether this would improve battery life...

Instead my 5s crashed/rebooted at least 4 times until this moment... The Preferences app crashed/hanged, a so called "locationd-something" crashed, 1-2 springboard crashes.

Even entering dfu mode and restoring the phone again + setting up as new didnt solve these problems.

I dont understand why my old iphone 4 backup worked a 100 times better.
 
A few hours ago, my iPhone 5S started randomly rebooting. I'm not even using it. It's simply plugged in and charging. The error logs report the following:

panic(cpu 1 caller 0xffffff8008ebfa4c): "ANS PANIC - Link CMD timeout: bus 1@src/drivers/apple/anc/anc_postnand.c:610 - PostNand(14)"


Any idea what that means?
 
My 5s is doing the springboard crash as well. Got it replaced and that is also crashing. It did not crash when I purchased release weekend but has since subsequent os updates.

It never crashes when fingerprint scanner is disabled. Then again my main crash is when unlocking the phone via fingerprint.
 
Catching Up!

Greetings my good people!! It's been awhile since I posted here and that's a wonderful thing. Ever since I did the last replacement a few months ago, I haven't had a single blue screen of death, and only 1 crash to the Apple logo. Facebook will still occasionally crash (just the app), but that's usually when I have a bazillion other apps running at the same time. Facebook is very memory intensive, I suppose (especially if trying to open a link from within the app).

If I recall correctly, it took 3 replacements (I think that's right, I'd have to go back and check to be sure) in less than a month, but the last one was the right one. I sincerely believe there was a hardware issue with the others and not a software problem. It's entirely possible that there was a bad run in production. Since all of my 'problem' phones were obtained in the same geographical area (and the replacements all obtained from the same Apple store), it's possible that they all came from the same run, except for the last one (which makes sense, because after a month, I'm sure the original stock was all gone).

I'm quite pleased with how Apple handled everything, all things considered. Plus, I got a free case for my troubles! ;) I'm sad that there are those of you out there still having problems. :(
 
iPhone 5s Crashing

I brought my 5S in to the Apple store about the rebooting and when the guy saw the Panic crashes in the logs he replaced my phone.

He told me not to restore from backup or the rebooting could return, but if he thought the problem was with my data, why replace the phone instead of just doing a restore? Anyway I did restore the backup. We'll see what happens.

The new phone was built in December (week 49) 2013 at Zhengzhou.

My original phone was a week 38 (Sept 2013), built in Chengdu and my 1st replacement was a week 36 built at Chengdu.
 
My first reboot was a few days ago. I was using Safari, this forum actually, and it just rebooted for no apparent reason.

Today, it was plugged in and charging. I got an email. Then I heard the phone vibrate as it does during a reboot.

I've had it since the Monday after launch. I always set it up as new. No PANIC errors in diagnostics though. A few springboard crashes.
 
When mine was rebooting, sometimes it didn't log anything. Other times it logged a kernel panic.
 
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