02-24-2018 05:05 PM - edited 02-24-2018 05:08 PM
This is a crazy one. I had an issue, just like everyone else on here, where the audio was no longer working. Then to find out, I noticed by USB wasn't working either. So, I naturally purchased a new audio/usb board. I installed it and it worked for about 15 minutes. Then out again.
I thought that was crazy so I went back to my old school Toshiba with W7 (WHO CAN BLAME ME, W7 RULES). I decided today though to get it out of the dusty drawer and give my $1000.00 laptop another look. I finally noticed that the USB and sound (residing on the same board) works great without the battery installed. WEEEEEIRD.
I've got three theories below.
Any other ideas? I'm already about $75.00 into this project and rather not spend more on a battery. I cannot afford another motherboard. Perhaps, soldering a connector onto the motherboard may work?
02-25-2018 09:40 AM
The first question: Is your 910 still under warranty - many are. If it is, let Lenovo figure it out.
I don't have a 910 to look at, but the USB hub controller couuld be bad. It is possible that a bad USB hub on the motherboard could be the problem and it could make it work when the laptop was cool.