I've just experienced the same issue. I spoke with a
Garmin tech about this and explained that I had also tried using the reset button, several different outlets, and the
USB cable. The tech seemed very familiar with this issue and immediately recommended that I download the most recent software update from
their website, then leave the unit unplugged for 24 - 48 hours to fully discharge the battery. He claimed that the unit was actually on, but a software glitch prevented both the reset and power buttons from functioning and also prevented anything from being displayed on the screen. He suggested that once the battery has completely drained, it will power up again when plugged into the
USB port of your computer. The software update is said to help prevent the problem from recurring. I am still waiting for the battery to discharge so I have been unable to get this fix to work for myself yet.
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