Hi i have the garmin, it does not have a reset button at the bottom. The sticker shows no "reset", shame i know i think it was still great advice to check at the bottom.

so i tried to do the, hold the battery icon until diagnostic mode appears, that came up as described. i connected it to the pc and it wasnt recognised still.

Any more of your great knowledgeable advice? i feel we are close to a solution.

p.s. thank you all for you very kind help.