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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 06-16-2018, 02:35   #1 (permalink)
Freak Poster
 
Join Date: Nov 2017
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i6 PP_LDO


Hello everyone.


I have an iPhone 6 board with searching sim issue, IMEI appears but not the ICCID (sim card id)



I tested a few voltage lines and those few are showing 0V


PP_LDO1 = 0V

PP_LDO8 = 0V



Are those lines originated from the Baseband CPU or the WRT Transceiver? I replaced the Baseband CPU and it changed nothing. the Baseband IC itself has nothing to do with these lines so I doubt it is related to it, anybody could check who's in charge of alimenting these lines?


Many thanks
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