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5.1.1 Upgrade to 7.1.2


5.1.1 to 7.1.2 Software Upgrade Instructions:




(NOTE! SEE "SETTINGS>ABOUT DEVICE" THAT MCU VERSION STARTS WITH "MTCD." - THIS CAN NOT BE INSTALLED ON "MTCB / MTCC" THEY ARE NOT SUPPORTED !!)
Download the ZIP file and extract it.
Prepare a micro SD card (my 4GB). It will be completely overwritten.
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INSTRUCTIONS FOR PREPARATION ON PC:

1. Insert the card into a PC card reader or USB SD card adapter, open the "Update-tool" folder.
2. Run SD_Firmware_Tool.exe as administrator (right-click and select run as administrator).

3. Select the SD card.
4. Uncheck the "Upgrade Firmware". It is important !
5. Press the "Firmware" button and select the nupdate.img file from the "image" folder.
6. Press the "Create" button and wait for the process to complete.
7. Copy the nupdate.img file from the "image" folder to the root of the SDcard.

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INSTRUCTIONS FOR RADIO UPDATE:

1. Insert the SDcard into the "GPS" slot on the radio.
2. Hold the "POWER" button until keys flashes in the buttons and release.

---- The radio will then start in android 7 recovery.
---- You navigate with the "POWER" button (short click for scroll and hold to confirm selection).

3. Run "Wipe Data / Factory Reset" (IMPORTANT!)
4. Select "Apply system image from SD card or USB"> then Run "From SD Card".

---- Wait for the update process is complete.

5. Run "Wipe Data / Factory Reset" (IMPORTANT!)
6. Run "Reboot System Now"

---- The radio will ask you to remove the SD card. Remove it

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The radio starts with Android 7.



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