Hp - LA-A994P boot loop

[ktmmotocross]

Hello .
Have this HP from my custommer that sudently stop and not work.
Charging is ok, after power button start but after 4 seconds powerlight goes off


i go through power on sequence on page 4 of schematic, but dont register that little low time after signal PBTN_OUT# goes on, and dont register any next signals.

also found that CMOS battery have 0.0V i replaced it

Now im trying to flash dumps. My rev is 2.0

[ktmmotocross]

Re: Hp - LA-A994P boot loop

flashed all 4 bios dumps that i found here on forum but still the same

[smali]

Re: Hp - LA-A994P boot loop

Have you check short on 3&5vs and all vs line on schematic page no29?

[ktmmotocross]

Re: Hp - LA-A994P boot loop

yes, no short

[khaahk]

Re: Hp - LA-A994P boot loop

New cmos battery holds voltage ok?

[ktmmotocross]

Re: Hp - LA-A994P boot loop

yes, no problem with it.

i try to manually start EC_SLP_S4 and EC_SLP_S3 signals but SOC start to BURN