Re: Lenovo Yoga 500-14IBD backlight flickering

Well... what if all this boost regulator circuit is totally missing from the board in some versions?

I'm trying to fix another Yoga 500-14IBD with the exact problem as discusssed here.
The screen flickers like hell when you disconnect the charger... not only in Windows, but in BIOS screen as well (so drivers or other software issues are out of the question).

This model is also powered by a 2-cell battery pack which appears to be in pretty decent shape, measured with a professional battery tester it's...

Re: XPS 13 9360 no CPU power

Lately I'm trying to fix another LA-D841P board who had the same fate (liquid damage) and I amazingly noticed in here the description of EXACTLY the same symptoms and behaviour, just as in @ytsoc 's case. Maybe it's the same board?

Plugging in the charger, PWR LED comes ON only for a couple of seconds, but no fan-spin and no POST.
If I press the power button, all major voltages seem to appear again for two seconds... well, all except +VCC_CORE and +VCC_GT.
When it's on, I also noticed some PWM waveform present...