try to hard reset it
back up your data and clear non vol
from map hold on speed, just touch and hold speedometer for a few second
in diagnostic page touch developer info/non vol statistic, touch the 3 lines icon on the bottom, clear non vol
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Thread: nuvi 3790T touchscreen freezing
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5th August 2011, 01:14 AM #1Important User
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You have to navigate to get to the good.
Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
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