Question about Garmin Montana 650t GPS Receiver
The Garmin was working perfectly and I was completely satisfied. But since last week when I copied disk image (.IMG) file, first of all it was copied OK and can be seen its copied, but after turning on the Garmin and go into the maps options to select that disk image file, That file is not present there for enabled. some other .IMG files were tried and finally this message start to appear " can not authenticate the map". Bye the way the old disk image (.IMG) files are still OK and visible. I tried also by deleting the rest of the old files but the issue is still there. Please Advise
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Posted on Jan 02, 2017
Try these two reset procedures
1)disconnect nuvi from external power
2)Flip up GPS antenna
3)Press the reset button
4)Connect nuvi to power source. The nuvi should turn back on and operate normally
1)Hold your finger on the upper-right corner of the nuvi's screen while you turn it on. keep your finger until the pop-up window appears
2)Touch YES. All factory settings are restored. Your recent selections and audio bookmarks are also deleted
Posted on Sep 30, 2008
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