: Turn off the power. Hold down the Menu button and the Power key simultaneously. The screen may remain dark, or an IAP/DFU indicator will trigger.
: Save the file to a known directory on your PC. When using the OpenGD77 CPS, go to Extras > Firmware Loader , select your radio type, and then click Select official firmware (donor) file to point to this .bin file. md9600-csv-2571v5--v26.45.bin
Proceeding with this update can void your warranty and, if done incorrectly, can "brick" (permanently disable) your radio. : Turn off the power
The file name itself tells a story about its origin and intended use: : Save the file to a known directory on your PC
: With the radio off, press and hold the two orange buttons (on the radio body, not the hand mic) while switching the power on. The screen will remain blank, but the LED may flash. Open CPS : Launch the OpenGD77 CPS on your computer. Flash Firmware : Go to Extras > Firmware Loader . Select your radio model (