Problems reverting to the official firmware

Post Reply
G7JIQ
Posts: 25
Joined: Tue Jan 19, 2021 10:47 am

Problems reverting to the official firmware

Post by G7JIQ » Thu Feb 16, 2023 6:46 am

Hi all,
Apologies if this is a little off topic, but I need some advice before I send it back as faulty.

I have just received a retevis RT-3s and it unfortunatly failed the gd-77 flashing due to the cpu problem.
Can anyone direct me to the correct software to re-flash this back to factory.

I have flashed what I think is the latest, but no matter what I put in the code plug, its TX and RX seems to be locked at 450 and 150 mhz,
Even if I type in a vfo frequency it just returns to the upper band edges on its display.

Has anyone any ideas.

Thanks in advance

G4EML
Posts: 919
Joined: Sat Nov 16, 2019 10:01 am

Re: IMPORTANT. New MD-UV380 or RT3S are not compatible

Post by G4EML » Thu Feb 16, 2023 11:22 am

Some TYT radios are frequency locked when new. Maybe you have somehow activated this lock when you reverted to the factory firmware.

Apparently the lock can be removed by holding down the top and bottom side buttons (above and below the PTT) while turning on the radio.

https://www.buytwowayradios.com/blog/20 ... adios.html

Colin G4EML

G7JIQ
Posts: 25
Joined: Tue Jan 19, 2021 10:47 am

Re: IMPORTANT. New MD-UV380 or RT3S are not compatible

Post by G7JIQ » Fri Feb 17, 2023 6:22 am

Many thanks for your help

Thats just what it was,

Post Reply