V15 G2-ALC Laptop (Lenovo) - 82KD Caps Lock, Num Lock, Esc Key and Power Light (RHS) Solid - Backlight on screen appears to light and fade repeatedly.

No sound, no changes.

Have tried full battery decharge, different RAM and removing most components.

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This wasn't exactly the same model, but they reported good things:

FIX

With the machine powered off

And me attached to suitable static straps

Used a conventional screwdriver to remove back cover screws, noting positions of all (in case different lengths)

Then with a spudger prised the plastic back open CAREFULLY

Removed all components I could, which in my case was memory, network card, nvme Disk

Waited a while (say 30 mins)

Reinserted

Power ON ... wahoo it worked

Power OFF

Replace back cover and screws back.

I googled around to find a BIOS reset button but could not fine one

My laptop does not have a BIOS button on side (like my older Lenovo U430)

The Power ON worked! My machine now functions normally

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I tried this with both of my broken laptops and it was a waste of an hour..

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OK so I had to reprogram the BIOS with a $7 USD USB plug interface and I used this file: Lenovo V15 G2-ALC Type (82KD) (GLCN51WW).bin 
Now both v15 laptops are working fine - it was just bricked beyond emergency update recovery.
I had to erase the existing chip data before I could proceed but after that it was surprisingly easy!

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