Cobra Dash Cam CDR 855 BT Update

I got this dash cam in 2017 and it had problems from the start. The memory card was corrupted and I didn't find out until after a long road trip.
The last file recorded was always corrupted because the camera had to be shut down before the ignition was turned off.
The internal battery is dead, is not replaceable, and the proper date is not saved to the files.
Now, the camera doesn't record. Only the still camera and the emergency recording works.