Here is working firmware for 7018b f1c200 sk-848-main-v17-6925c with corrupted touch cal area and fixed. If anyone is having the issue of not working touch on 7018b after disconnecting car battery here is the fix, after you flash this file into the flash with tl866 it should start working again, at least good enough to do a proper cal later. Included corrupt version if anyone wants to take a deeper look at the problem and maybe make a way to fix other firmware version.
