OpenGD77

Thanks Daniel and Roger for constantly improving the OpenGD77 firmware!

Hello Daniel,

adds Safe Boot mode (SK1 + 0) OR (SK2 + 0) ?

73 Alfred

Hi Roger, the 8-pin We resoldered the flash chip! Unfortunately, errors still exist. We cannot restore the "Flash" - the USB port is immediately closed. Should we use the 8-pole? Replace flash chip? The code plug can be written into the device, but then the USB port is permanently on/off. 73 Alfred ...

Thanks Roger, we'll try to fix it!

73 Alfred OE7ABH

Thank you Daniel for your quick reply!

Unfortunately the USB programming cable keeps getting interrupted.
Flashing back the calibration from another 1701 is therefore not possible!
How can I replace the SPI flash?
Daniel, can you give us clear instructions for the repair?

73 Alfred

Hello, We have a new Baofeng DM-1701 from China here at the club, which was unfortunately delivered defective. It always triggers a settings reset when you operate the GD77 menu! See the video! Even with the original firmware (as delivered), a reset was repeatedly triggered. What can be done about t...

‼️‼️New manual Hi everyone, EA5JOP and me (EA5JOQ) have written a comprehensive manual in both English and Spanish, step by step, covering the entire process for performing the GPS mod. Based on ''CU7AAZ GPS mod 2''. https://ea5joq.es/files/rt3s_gps_mod.pdf https://ea5jop.es/files/rt3s_gps_mod.pdf ...

Daniel,

can you make a recommendation as to which modules work best for RT3s?
Which module would you install on the RT3s ?

Thanks, Alfred

I have 2 radio stations: RT3S with GPS and 380UV without GPS. In RT3S I replaced the antenna, the amplifier, replaced the module with ATGM336H-5N-71. There are no special changes in the speed of satellite detection. It works very slowly. Finds up to about 9 satellites. In 380UV I put an external mo...

Hello Duarte,
thank you very much for your great information. Thanks also for your battery info.
I will try to improve my GPS!

Greetings from Tyrol, Alfred OE7ABH