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The firmware needs updating due to the GPS week number rollover that occurred in 2019
if you obtain a gps card
igo software will work set time date manually gmt time but date revert back to 2001 on header unit
I have similar unit same problem but yet to find a later firmware
Spoiler: image
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15th September 2021, 07:18 AM #2Junior Member
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Last edited by Boki; 15th September 2021 at 08:30 AM. Reason: spoiler
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