Universal Firmware Patcher for Protected Garmin Devices

Pre-Boot mode

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1. Power OFF your Nuvi.
2. Press and keep holding the most left upper corner of the LCD screen
3. Power ON your Nuvi but DON NOT release your finger from LCD screen (keep left upper corner of the LCD screen procedure ends)
4. You will notice Nuvi boots in Pre-Boot mode. Now quickly connect your USB cable.


it's better to ask for pach and make it for you

vladan091 Reviewed by vladan091 on 27th October 2017. Universal Firmware Patcher for Protected Garmin Devices Universal Firmware Patcher for Protected Garmin Devices v.1.10 This is an universal firmware patcher for protected Garmin devices. Many devices recently have a strong firmware protection and cannot use unlocked maps because firmware requires .gma and has MSV ( Map Signature Verification). In this list (http://www78.zippyshare.com/v/CWAOqHso/file.html) you will be able to check if your device firmware requires this patcher or if it just needs gingunlock+mapsigpatch or simply an .unl file Rating: 5