Q: How did you deal with sporadic bluetooth connectivity

Barry

Yes. I took it to the store everything is fine. I worked fine in the store. Trouble started at home. After I tried at home, I deleted all my hard drive, thru -R menu and also after Bluetooth stopped working again  -P-R? Only after that I restored my files so I can work using wire mouse and keyboard

Thank you Barry,

Unfortunately, the problem persists after reset. I was able to connect my keyboard, type twenty or so characters and Bluetooth connection to computer was lost. I'll try it after the last update, maybe it will do something.

yep, the same thing. 20 or so letters and that's it.