Printer was working yesterday, suddenly dead today. No sudden power cuts since it worked, no one touched it, nothing. Simply won't turn on, electric socket fine. Any ideas?

U sure power is getting to cooktop ?- chances of all burners not working and/or going bad at same time is ridiculous.
Get out your VOM and start tracing the voltages back to point of inception.

it is possible that the bluetooth connection being cut midcall to have froze the bluetooth headsed, one thing you should try is to power it up in connection mode and see if it works, there are different combinations of buttons, assuming you have power and volume buttons to do a hard reset to it... otherwise i think you should take it where you bought it and ask for solution even if warranty period is over because it simply isn't normal what happened.

best of wishes and hope i helped. good luck

LAN PORTS ARE BAD SEEMS TO BE.

Did you check the battery of the car (maybe loose cable)? but if it just happen suddenly, it might be your altenator that wasn't charging your battery. I think once there's enough power gone through the car then your anti-theft system should work as normal again.

Install batteries in your unit to see if it will work, if yes then is is more than likely a fuse or a power transformer is open.

Things to check first for a camera that won't turn on are battery contact points, and micro switches that are located on the battery and memory card doors. Troubleshooting tips on other things that need to be checked may be seen here. These tips won't work for every case, but they're worth a try.

I would say that you need to replace the alternator. The car was running on the batteries power. When you drove the car, it ran the battery completely dead.

Did you get it fixed? How??

try the fuse in the plug