cancel
Showing results for 
Search instead for 
Did you mean: 
ArchivedThis topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.
regexaurus
Level 1
9 6 1 0
Message 1 of 2
3,438
Flag Post

HP Pro x2 612 - power keyboard stopped working

HP Recommended
Pro x2 612
Microsoft Windows 10 (64-bit)

A few weeks ago, I updated the BIOS (to 1.36 Rev. A) of an HP Pro x2 612 tablet with the power keyboard/dock. The update was successful and if I recall correctly, also flashed the power keyboard. This may be completely unrelated to the update, but this past weekend, the power keyboard stopped working. The tablet still works fine, but does not detect the power keyboard when docked and the power keyboard doesn't seem to charge. I had access to another power keyboard and the tablet works fine with that. I also tried a different tablet with the problem power keyboard, but that tablet didn't detect the power keyboard either. It seems to be "dead."

Are there any recommended troubleshooting steps for the power keyboard before I dispose/recycle? I would like to at least make a reasonable effort to repair/recover the power keyboard if there is something I can do. I'm not opposed to removing screws, etc.

 

Thank you!

1 REPLY 1
regexaurus
Author
Level 1
9 6 1 0
Message 2 of 2
Flag Post
HP Recommended

So I "cracked open" the power keyboard. Holy screws, Batman! I tore it down to the logic board...had both boards removed from the bezel/case. I wasn't sure what I was looking for--a blown through-hole electrolytic capacitor (there are none)? For kicks, with the logic board removed from everything else, I connected the power adapter. The power LED came on; it wasn't doing that at all when I had the problem. I re-assembled everything except the bottom cover and left the battery disconnected from the logic board. Plugged it in again and this time connected a tablet. The tablet detected the keyboard base! Undocked the tablet and disconnected the keyboard/dock from power, connected the battery and completed re-assembly. Re-connected to power and confirmed the tablet still detected the power keyboard.

Odd to say the least.

Was this reply helpful? Yes No
ArchivedThis topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation