1. Do a generic reset. No files are harmed.
2. The RTC Battery 697917-001 is just a CR2032. You as a tech would measure it and anything above 3.00 in circuit would be a pass. Else replace and repeat step 1.
3. The SERVICE MANUAL is at:
Using the service manual try it with just one stick of RAM, no ODD, HDD, SSD or WiFi to see if it will power up.
Remember I take it there are no other obvious signs of abuse or old big battery incorrect power adapter use.
my hp laptop (15-af156sa) won't turn on. Took the back off to see if there was any obvious problem but all seems well.
The little led on the power jack is lit and when pressing the on button a little led with pwr led lights up for a few seconds then goes off but the hdd led next to it doesn't light up
everything seems dead no lights on the motherboard flash, fan doesn't start up. I've unplugged various things (hard drive, ram etc) and tried turning on again but nothing.
I've swapped the power jack to a new one but still the same problems.
any ideas what it could be ?