Universal Firmware Patcher for Protected Garmin Devices

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This is a Patched Firmware (JNX + Unlocked Maps) for GPSMAP66s ver. 3.40
Since the GPSMAP66s (HWID: 3028) does not have the GSV and falls into category 2
MSV: Yes, GSV: ---
In this case the Patched Firmware guarantees the correct reading of Unlocked Maps, including NTU and TOPO Maps with CP 65001.
The Patched Firmware guarantees reading of BirdEyes JNX images too.
Be sure to remove All BirdEyes images eventually present on Device before apply Patch
BirdEyes images can be restored AFTER flashing new firmware
Also, in this case the "patched" Firmware can be loaded through the normal update procedure via WebUpdater

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Changes made from version 3.10 to 3.40:

• Fixed issue where spot soundings were permanently disabled
• Fixed possible issue on the map where we would list use instead of go
• Fixed potential issue where route activity was not saved after changing profiles
• Fixed potential shutdown when Recording Controls is in the page sequence
• Fixed issue where we would delete GPX files on SD cards during Delete All
• Fixed possible issue when leaving Weather page from page loop
• Fixed possible issue with mass storage locking up
• Fixed possible issues with MOB key
• Fixed possible issues with WiFi set up page
• Fixed possible shutdown when using Area Calculation
• Fixed possible shutdown during large Birdseye downloads
• Fixed possible shutdown with changing dashboards
• Fixed timing for flashlight SOS morse code
• Added ability to hide/show the dashboard on the map
• Added Geocaching options to main map page
• Improved altitude accuracy in Expedition Mode
• Improved altitude accuracy with auto calibration
• Updated magnetic compass deviation

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FireFox58 Reviewed by FireFox58 on 26th November 2019. 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

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Thanks for the file
Can i know how it made

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Yes, read this:

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