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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 08-15-2020, 10:09   #1 (permalink)
Insane Poster
 
Join Date: Nov 2014
Location: Manila, Philippines
Posts: 92
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ipad air not charging


already replace charging flex

i'm getting
pp3v3 - 0V
pp3v0- 3v
pp1v8- 1.8v
ppvcc main - 3.7v

already tried replacing tristar several times from 5s tristar

pp3v3 line is ok.
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Old 08-17-2020, 09:42   #2 (permalink)
Freak Poster
 
Join Date: Jul 2013
Location: Brazil
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Test tristar

Quote:
Originally Posted by WINPINPH View Post
already replace charging flex

i'm getting
pp3v3 - 0V
pp3v0- 3v
pp1v8- 1.8v
ppvcc main - 3.7v

already tried replacing tristar several times from 5s tristar

pp3v3 line is ok.
Hi bro, use SMB for check tristar IC.
You can check all pins of dock charging using TP behind PCB
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Old 08-18-2020, 13:06   #3 (permalink)
Insane Poster
 
Join Date: Nov 2014
Location: Manila, Philippines
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already replaced u2 ic several times. if charging dock is defective i should not be getting output..

only pp3v3 is missing.
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Old 11-07-2023, 12:07   #4 (permalink)
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I hv same issu, in ipad a2152 model(air 3rd gen) wifi.
Please �� help
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Old 11-07-2023, 19:42   #5 (permalink)
Crazy Poster
 
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Pls check for the circut ways from dock to u2
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Old 12-09-2023, 15:23   #6 (permalink)
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Join Date: Aug 2017
Location: INDIA
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Quote:
Originally Posted by WINPINPH View Post
already replace charging flex

i'm getting
pp3v3 - 0V
pp3v0- 3v
pp1v8- 1.8v
ppvcc main - 3.7v

already tried replacing tristar several times from 5s tristar

pp3v3 line is ok.
remove ic and check footpad reading
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