Thinkpad T460, I tried to upgrade my LCD to fhd. It booted and display seems fine when I tested it, but after i put everything back to laptop case and boot, I saw smoke, no idea where the smoke origin from and since then, it just bleep and then no respond.

These are the steps I took after that:
- Change back to original LCD - beeps
- Change RAM to another slow - no beeps, no display
- Connect external monitor - can function as normal
- Change the LCD connector - same problem

Please advise. And do you have service to help change the LCD?