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Garmin Nuvi 1390LMT Logic Board Replacement

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This guide will show you how to disassemble the Garmin Nuvi 1390LMT GPS to replace the logic board.

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  1. Garmin Nuvi 1390LMT Logic Board Replacement, Logic Board: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Snap the plastic cover off using a plastic opening tool.

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  2. Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the four black 11 mm T5 torx screws.

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  3. Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Pop the screen cover off with a plastic opening tool.

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  5. Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Gently pull the wire ribbon connecting the screen to the logic board from the plug.

    • Be careful when unplugging the wire ribbon. It is very fragile.

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  6. Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Remove the two silver 5 mm T5 torx screws connecting the circuit board to the plastic casing.

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  7. Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Flip the logic board over.

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  8. Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Garmin Nuvi 1390LMT Logic Board Replacement: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Disconnect the harness between the battery and the logic board.

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To reassemble your device, follow these instructions in reverse order.

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Trey Ulsh

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537 crwdns2915208:0crwdne2915208:0

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Montana Tech, Team 10-4, Shirk Fall 2015 crwdns2935289:0Montana Tech, Team 10-4, Shirk Fall 2015crwdne2935289:0

MTUM-SHIRK-F15S10G4

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I need a replacement board for My Garmin Nuvi 1490LMT - where can I get one?

Danny - crwdns2934203:0crwdne2934203:0

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