Re: iPad 7 A2197 - no power
Ended up being bad q8504 on PPBATT_VCC rail....
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Re: iPad 7 A2197 - no power
Sorry for jumping in. If I could ask some help figuring out with same model dead. . Plug the charger amps go up hit 1.6 and reset. Nothing on the screen. PPBATT_VCC is fluctuating between 0 and 1.37v. Injecting voltage to PPBATT_VCC 0.68 amps driven from dc power supply, then go down to zero All other rails seem present. Tristar replaced with no positive change. Looks like pmic is getting reset signal but don't know how.
OP needs cpu reball I think. That's pretty common fault on these....Last edited by vahamb; 06-08-2023, 11:28 PM.
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