All are at least 3Mohm. I couldnt test two out of the four gates because the testpoint is unreachable with my probes. Q5240 pin 1 (CHGR_GATE_Q4) & Q5230 pin 8 (CHGR_GATE_Q2)

C5260 2.2ohm
C5220 2.5ohm

resistance of probes when short-circuited : 0.2ohm​

Thank you for your answer. I suppose you mean Q5265 which is indeed the battery mosfet.

Drain-gate : 12Mohm
Drain-source : inf.
source-gate : 3M​ohm

I have also tried to measure everything accross the double mosfet q5230 and q5240 (difficult because pads unreachable, i measure on surrounding caps thank to the brd. Nothing is shorted.

Hi guys,

If I unplugged the battery and the charger, then plug the battery then the charger, it charges without problem.
Then if I unplug the charger and plug it back, it won't charge anymore.
In the first case, main voltage is regulated at ~12.5V and charges the battery.
After unplugging the charger, main voltage drops to battery voltage at ~11.5V.
After replugging the charger, main voltage stays at ~11.5V and won't go up to ~12.5V again.

I found C520A (2.2µ after current sensor from USB-C source) completely burnt and removed it properly. I cleaned...

Hi,

My TAS5342A is completely burned. Thank you for the chip's identification.
I see on providers webistes that there exist a variant of that chip (TAS5342LA), which is available while the original is not.

Does anyone know if I can safely replace the TAS5342A with a TAS5342LA ? Will it work properly ?

Hi,
Brock here!
I'm a newbie in repairs but have a solid background in electronics engineering.
Currently doing a phd in electronics where i reuse old smartphones, I try to be useful by repairing stuff from my frieds and all.​