Can you upload some picture from xxx model that we can see what abnormality is in developer menu in fm table?
Can you also try with 31495, 13, 13, 1
p.s.
I think something is in this GTM type3 FW 3.10, becouse also 1 user with GTM35 have problem after update, and antenne stop working.
Do you know some user who buy tmc subscription for Brazil over my garmin and can share unlock code?
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