Rapid Flashing Red LED on DC50, T 5, TT 10 or TT 15 Collars

Occasionally, a faulty charge error can be introduced into the dog tracking collars that plug directly into the computer when updating its firmware utilizing a Mac computer. This issue is not typically caused by hardware and a repair is unneeded.

A similar error can also occur if an update through Garmin Express™ software is attempted on these devices as well. It can occur either through the Mac or PC version of the Express program.

To resolve this error, locate a PC and perform a firmware update.