X200 - Bluetooth function suddenly appeared??

[g8tzl2004]

I assumed that my X200 did not have the Bluetooth option installed.

I had switched on Bluetooth in BIOS (and Saved and Exited) and then ran a diagnostic and it reported that No Bluetooth was installed. I used the X200 for about a week assuming there was no Bluetooth.

I then acquired a new "old" 4 cell battery (dated 2011) to replace the dead 6 cell battery. I decided to cycle the old battery to see how many hours I could get from the old battery (so far about 1 hour). On the 2nd cycle, the X200 closed down on its own as I was away from the X200. I attempted to power up with no power supply connected and got a BIOS " critical battery error". I connected the power supply and booted up...and then got a message saying that the Thinkpad Bluetooth with Enhanced Date Rate II driver was installing!!

When I now boot up, I now see less BIOS "wording" before Win 10 boots up....its so quick I can't read it ....but maybe something had been set up in BIOS by the original corporate owner..and the critical battery error had somehow reset the BIOS and now Bluetooth works?? Any ideas?