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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone, iPad, iPod Hardware Repair

iPhone, iPad, iPod Hardware Repair Hardware Repair discussions for iPhone, iPod , iPad & Apple Products, help, guides.

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Old 05-22-2017, 12:01   #1 (permalink)
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Iphone 5s boot apple logo and shutdown


hi all,
my 5s after screen replacement work for 1 day....the phont after a day wont startup, boot with red screen, try restore from DFU but get many error, 2005, 17, etc.. i try to change u2 and start only in recovery mode but when i try again restore some eroor. tryed reball power managment and now boot with apple logo 3sec and shutdown. any ideas?

Thanks
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Old 05-26-2017, 20:51   #2 (permalink)
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Change battery 1st in that case and then u2
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Old 05-29-2017, 14:07   #3 (permalink)
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check battery, if good check voltages of u2 ic and pm ic
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Old 05-30-2017, 19:14   #4 (permalink)
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some times error 9 comes for the battery problem ..change the battery ... battery must be original ...
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Old 06-01-2017, 18:36   #5 (permalink)
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Thanks for reply, i have already changed battery, but i will try change U2, if possible can u share me schematic of u2 voltage?

many thanks
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Old 06-01-2017, 18:54   #6 (permalink)
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the problem is the flex from the camera. disconect the screen flex and turn on. if the phone boots ups fine then change that flex.
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Old 06-05-2017, 17:40   #7 (permalink)
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Quote:
Originally Posted by pinajaime View Post
the problem is the flex from the camera. disconect the screen flex and turn on. if the phone boots ups fine then change that flex.
already tryed but nothing thanks bro
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Old 06-07-2017, 22:02   #8 (permalink)
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same problem with me cell start up and restarts with red or blue display
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