I had a laptop that had a number of keys which had become unresponsive.
After trying the usual; removing keys, cleaning and compressed air to no avail, I decided to use a bootable version of linux from a flash card to see if the keys worked there.
The keys were unresponsive in safe mode (windows 10).
So, simple..... I thought.
I changed the boot order to usb, switched from uefi bios to legacy. When reboot occurred, a boot cycle began. Upon rebooting, before post completes, the laptops shuts down, restarts and the cycle continues.
I have tried the follow:
1) Battery reset (pin hole)
2) Bios reset (manual) disconnecting the battery and bios. Waited a while, reconnected. Issue remains.
3) Booting without battery (to exclude battery failure)
4) The only thing I cannot test yet is for memory failure (no spare stick)
The only bios change I made was to change boot to usb device only. And changed uefi to legacy.
Even if this did somehow affect the boot up and cause the boot cycle, a bios reset should have restored this surely?
Edited by MiniByte, 13 July 2017 - 05:49 PM.