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REFERENCE iPhoneXR vdd boost line shorted

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Alex Unlocker

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Joined
Apr 18, 2021
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Model: iPhone XR
Problem: no power (overheating)

action!!

1st check power supply 2v-3v 0.4amp to 0.8 agad
2nd attempt dahil umiinit lagyan muna ng supply kung san umiiinit at dahil umiinit ang U3100 anjan sa ic nayan ang vdd main and vdd boost check na natin ang mga capacitor

sa vdd main no short sa vdd boost shorted proceed na agad tayo short killer sakin kasi battery lang ( 3.7volts iphone 6plus battery connect negative to ground and positive to capacitor) dinako gumamit ng rosin dahil makikita naman sa microscope para di madumi ang gawa at dahil maliit lang ang line ng vdd boost , pag lagay ko ng supply sa capacitor umuusok agad si capacitor makikita s picture so alam na agad pera na mga ka langgam , ang ginawa ko dikona pinalitan dahil wala naman akong pamalit na capacitor tanggalin lang kuto at ookay nayan !
palike naman mga lodi! ♥️ https://m.facebook.com/story.php?st...RczQTjkGnsQJa14SknKMsdDoDl&id=100064110212558

SANA MAKATULONG ♥️
 

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ganto ren tanggap ko idol kapa kapa then ang umiinit is yung u3100 ic then binunot ko nawala short
 
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