Well, a CH341 doesn’t need all lines, I’m always refering to an old Samsung board- take a closer look to all the lines, maybe it’s as obvious as fot the Samsung (Sandy bridge, too)
I think you don’t need pins 3, 4, 7:
Battery removed or not, sometimes a charger connected does help, but again, one should be sure that the clamp sits properly and doesn’t shorten anything!