Hello,as Kunix suggested I made a custom firmware:a boot loader from PouchX rgn file and the new core from the latest nuvi13xxand14xxseries_GCDFile__620.gcd.Finally I managed to update the device but is still unrecognized from the computer.I probably will better give up and use it this way till it die.
Quote Originally Posted by kunix View Post
ceco134
GarminCure3 can't break the firmware flashing functionality in the real pre-boot mode (as in your case) by design. Something else has happened.
If you can't flash a longer (newer) firmware but you can flash an older (shorter) firmware, then probably the flash chip is dying. You can try comressing fw_all.bin with gfwpack.exe (you can compress both CURE-ed and and ORIGINAL) and making it shorter....