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L'Apple iPhone 5s fut annoncé le 10 septembre 2013. La réparation de ce modèle est très similaire aux modèles précédents et requiert des tournevis ainsi que des outils pour faire levier. Disponible en version GSM ou CDMA, 16/32/64 Go de stockage et en argent, doré ou gris sidéral.

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No modem firmware and stuck on searching

Hello, my iPhone 5s shows searching after booting up and after 30 seconds it says no service or sometimes Cellular update failed error. I checked the about page in Settings-General and it does not show modem firmware but it shows IMEI. When I go to the phone app and dial *#06# just nothing happens. I remembered that my phone dropped in water like 1 month ago and nothing happened, but after 3 weeks I saw this error. When no service error started to appear, my phone sometimes was able to make or receive calls.

Any suggestions should be appreciated!

EDIT: I am using this iPhone as an iPod touch now and recently I noticed that every time I boot the device up it shows that Cellular Update Failed error even tho I do not have SIM card installed.

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Very bad sign. so Modem Firmware is located on BB_CPU and if you are not getting the firmware its a few of the following that can affect this

  1. BB_PMU is not working right therefore you may not be getting voltage to power the BB_CPU
  2. There is a issue with WTR and it is messing with the voltages of PMU
  3. BB_CPU needs reballed due to corrosion
  4. BB_CPU has a internal short

Either way this is a Motherboard that will need a Microsoldering Tech to repair.

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Thanks for suggestions!Is that BB_PMU and BB_CPU replaceable? And could Jailbreaking damage it?

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The Overclocked CPU sera éternellement reconnaissant.
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