vr2yrv QuanSheng K5, error key. Displays "launch prohibited," causing all channels to be unable to transmit. How to unblock transmission! Thank you!
BG6QED If it's an official firmware, the screen will display the word "DISABLE". The solution is as follows: First, turn off the device. Then, while holding down the PTT transmit key and the first button at the bottom, keep them pressed without releasing, and simultaneously rotate the power button to enter the 53/54th item (F-lock) function menu, select "OFF", confirm, and it will be done.
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