The Apple iPhone 5s was announced on September 10, 2013. Repair of this device is similar to the previous models, and requires screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Silver, Gold, and Space Gray.

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iPhone 5s randomly restarts with blue screen

iphone 5s, 64GB version, was working fine (iOS 8.2 for almost a month) but recently started to restart at random times.

Did firmware upgrade (via DFU mode) and setup as new phone - it still restarts. When it restarts blue screen appears for a while and this gets logged, below.

iOS 8.3 did not help - still restarts.

Is this some known hardware iphone bug?

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This blue screen issue can be due to a number of causes. Usually all of them are hardware issues.

First, we need to know the history of this phone:

- When did this start happening?

- Was the phone previously repaired?

- Was it subject to a liquid spill of some kind? To a hard drop?

In all cases, if your iPhone is still under warranty and has not been tempered with, take it to the Apple Store or an Apple Certified Service Provider/Center to try and have it repaired/replaced.

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