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 hung on Apple logo and blue screen

Hi wondering if someone could help me out. I have a IPhone 5s that stays on the Apple logo for a while and then get a blue screen. This keeps on repeating itself.

I have check for long screw damage. All seems fine. Also connected the phone to a USB Ammeter and get 0.8A to 1.01A consumption. Also tested at the battery connector and get 4.3v

Tristar seems as tho it is working. Should i change to rule it out?

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Hi @siddy_k, when did this start happening? Did anything happen to the phone that you think could have caused this issue?

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Hi @lexahall, The IPhone is a friends and all he said was the handset just died and when he tried switching it back on it boot loops on thr Apple logo and gets a blue screen for a second and the cycle continues

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I'm guessing that you've already taken a look at Apple logo then blue screen since you mentioned that you checked for long screw damage and most of that thread talks about screw issues.

Since this seems to have begun occuring without any obvious precursor (droping the phone, water damage, repair gone wrong) it could be a software issue. I read through this article and it seemed helpful: http://vkrepair.com/iphone-5s-blue-scree... There is a section on software solutions that recommends the following.

First try:

  1. Press the home button and the lock button at the same time and hold them until your iPhone 5S shut down.
  2. Power on the iPhone.
  3. When you see the Apple Logo, press the volume up button until it boots up. This might take a few tries. You may have to hold onto the volume button for a few minutes.

If you're still having trouble, you may have to reinstall the iOS on the device completely. To do this;

  1. Plug the iPhone into your computer.
  2. Power it down by holding the home and lock buttons.
  3. When you see the Apple logo come up, let go of the lock button but keep holding the home button.
  4. The iTunes logo should come up on the iPhone.
  5. Restore the iOS with a new set up, do not use a backup.

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Yes i have read through that post and will be tripple checking for any long screw damage. Will also remove the metal standoffs to get a better view . As stated in that post sometimes the solder mask on the pcb can hide the damage done by the screw.

If still no sign of any long screw damage then will go down the software route and follow what you have suggested

Will update tomorrow

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@siddy_k great, I hope that you get it worked out. I'll check back.

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@lexahall i have removed the 2 screw standoffs and have confirmed again there is no long scew damage present.

I have tried connecting the phone to iTunes but it is not getting detected

I have also just noticed after taking the rear sheild off that the tristar ic has been previously replaced.

Could thus be a faulty tristar problem?

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@siddy_k Possibly. Have you noticed any of the following?

* The phone gets hot when charging

* The phone shows that it is charging, but the percent charged doesn't increase.

* The phone has no power and does not respond when plugging in.

* High battery discharge.

* USB connection to a computer is erratic or non-existent ( I think you may have noticed this since you said the phone is not being detected)

* Can be charged if the battery is partially charged already, but not with a dead battery.

* "Accessory Not Supported" is displayed on the screen.

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