Remove the caution seal( it is under the battery place)
Find the two zero ohm resistor in the mid point between the two connector near the pcb gap, some times the upper resistor will be opened
Remove the two resistance
Put back the caution seal and the battery
press and hold the ptt switch and lamp switch and switch on the radio
The radio will write SETRST on the lcd
Rotate the dial knob to ALLRST and press F
The radio modified