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"The specified Unit ID is invalid", forerunner 245m

im an exchange student studying in mainland china, and bought a 245m but it wont connect to the phone or PC, the garmin express says "The specified Unit ID is invalid". Searched a lot but could not find further informations. The unit id was 3999351660

0 SUSSAMB over 3 years ago

Call Garmin so they can investigate.

0 Yxis over 3 years ago in reply to SUSSAMB

i called garmin in mainland china, but they said the device was bought abroad, they're not responisble for it.