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Garmin PRO 550 FW 3.70
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Any device transmitting RF will need to comply with local frequency regulations ,as your device has a GPS it will most probably be GEO locked to the country of purchase.
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Spoiler: Software implies it is encrypted
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Thread: Garmin PRO 550 Plus help please
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25th August 2021, 11:29 PM #2VIP Master
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Last edited by Garman_Nuvi; 27th August 2021 at 02:39 AM. Reason: added software results
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