Lenovo V15-IIL 82C5 Bios please

[Giggle2562]

Thank you very much for the BIOS file.

I have flashed the new BIOS you provided. I also ordered a new 90W power supply, which has arrived, so I am sure it's not a power adapter issue.

Unfortunately, the problem still occurs, but I have noticed some more specific symptoms:

• When I install the RAM: The laptop powers on (LEDs blink, fan spins), but the screen does not turn on at all. It shuts down after a few moments.
• If I try to start it without the RAM installed: The screen does turn on for a moment (LEDs blink, fan spins), shows a "No bootable device" message, and then it shuts down.

What I've also noticed is that after it shuts down (in either scenario), it won't turn on again. I have to disconnect both the AC adapter and the internal battery before it will attempt to power on again.

Is this still likely a BIOS issue, or should I start looking for a hardware fault elsewhere?

Any advice would be greatly appreciated. Thank

[m1ch43lzm]

Maybe you received a faulty motherboard, or another part from the laptop is faulty
Test only motherboard and screen, nothing else connected (no keyboard, no touchpad, no I/O board, no WiFi, no SSD, no RTC battery)
With RTC battery removed it should turn on upon connecting AC adapter, otherwise find the alternate power button pads at J4501 or J4502 (or pins 1-2 at the keyboard connector) and momentarily short with tweezers to turn on the laptop