Baofeng DM-32 --> OpenDM-32

I was able to flash the OpenDM-32 firmware on my handset.  I was also able to program it using the OpenGD77 Experimental CPS.

So far, I've only experienced minor issues, and many of those are known.
For example, you cannot save radio settings/options.  I also do not think you can program the buttons.

The only other strange thing I experienced was a clicking on analog channels I do not hear on my other handsets.  It is rhythmic and occurs at about 2 times a second.  This could be due to the specific hardware or something else.  It tends to go away once you adjust the squelch, but the squelch settings do not save from channel to channel or after turning off the radio right now.

Still, this is WAY more than I was able to achieve with the standard firmware and CPS.  I was able to use the Parrot DMR channel on a local repeater without any issue!
I was able to program the radio with all of the zones, channels, contacts, and other settings necessary to operate in my local area.
I couldn't do that with the original software.

Thank you to EVERYONE who has been working on this project!  Please let me know if there is any specific testing you'd like me to do with the local repeaters.  I do not yet have a DMR hotspot.

Несмотря на препятствия со стороны моего компьютера и Windows 10, мне удалось самостоятельно реализовать OpenGD-DM32.
Я очень доволен результатом и вот тестирую устройство.
Вот несколько фотографий и видео в подтверждение моей работы!
Позже я подведу итоги своих впечатлений, похвал и замечаний о том, что я заметил в процессе работы!!!

Мои видео превышают допустимый размер сайта! Я вставила картинки, можете посмотреть.

Hello,

I have been testing the new firmware and just wanted to create a list of bugs/anomalies that have been reported, not just by me, but by others, including forum members, Roger, Koshak, and all of the devs.  I just figured it would be good to create a "master list".  Many of these bugs are already known and the causes are being investigated.

Updated 7/7/26

General Radio Functions

• Unable to save settings updated by the user directly in the radio menus

Includes:
Transmit Power
GPS settings
Sounds
Per-Channel Squelch settings
Programmable Button functions (SK1/SK2 and P1/P2, but this may not be possible and is not currently supported by OpenGD77)
Basically if you change it in the radio's menus, it does not remember after navigating away from the menu.
UPDATE - User error.  You must press the OK/menu button after updating settings instead of the Home/Back button.  This saves them

• GPS functions are not yet implemented or not working

Note - Even if they were, the settings set by the user do not save, so even if GPS is enabled, the radio won't remember.
UPDATE - Was able to get working after figuring out the menu settings issue.

• APRS functions not yet implemented and/or working

UPDATE - Seems to be working after figuring out menu issue.

• Inconsistent calibration data across different handsets causes different transmit power settings.

Note - This may be due to an inaccuracy of the calibration data in the BaoFeng firmware compared to the inconsistent performance of the hardware itself.  But this can be a big issue as the average radio user will not be checking with a meter

• Potential issues with radio not detecting the movements of the channel switch knob properly when changing channels in a zone causing the channels to go backward at times

Note - In the original firmware the channel change function was slow/delayed.  This could be by design due to the cheap/inaccurate physical dial on the device.

• Custom loading screen reverts to OpenDM32 screen.

When you customize the loading screen in the CPS it eventually reverts to a blue screen saying OpenDM32.  Despite no programming updates.

General TX/RX Issues

• Squelch issues with DMR and Analog

Includes a rhythmic "rapid pulse" or clicking sound, but doesn't appear on every channel

• Radio receives a signal from a repeater or channel, the meter at the top of the display indicates there is a transmission being received, but no audio is heard.

Note - I experienced this issue.  You can fix by changing away from the channel and then changing back.  But it is still an issue.

• Audio amplifier is active even when no transmission is received

Detail - You can hear a buzzing if you turn up the volume all the way, even when no signal is being received.

• Green receive LED flickers but no sound is heard/received.  Intermittent issue.

DMR-Specific Issues

• Display page refresh method causes drop-out in DMR functions/CPU cycles/transmit power
• Unusual transmit lock indication and/or transmit lock not taking place as expected after PTT is held
• Drop-off due to an issue with the 11th data frame, possibly due to a memory issue and/or an undiscovered variable
• DMR does not work as well/corrupts on low-power settings.

CPS/Programming/Interface Issues

• Cannot read/write certain theme data to/from the radio with the CPS

Roger was able to reproduce this.  Certain fonts and colors cause a COM failure.
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Я не знаю, как вставлять картинки и видео.

Ответил в ЛС

Я процитирую мастера, который, к счастью для нас, создал эту экспериментальную прошивку.
В ней много ошибок, но в любом случае она пригодна для использования!!!
Я также заметил, что кнопки управления не зафиксированы, поэтому в VFO мне приходится выбирать нужную кнопку, чтобы перейти к «подробностям канала» и настроить обе линии — RX и TX.
Я заметил, что когда я возвращаюсь в память и на канал, с которого я перешел в VFO, станция показывает, что идет вперед, но на самом деле это не так, нет ,, RF ,,! Мне пришлось сделать « OFF - On », чтобы получить работающее радио!
Пока что оно не зависает и работает корректно, если не выполнять описанные мной действия!
Я очень доволен! Это только начало, и так было с радио GD-77, когда оно было реализовано в начале его прошивок OpenGD.
После этого все стало историей, и было бы хорошо, если бы не было завистников!!!

I will just note, I posted the bugs just to keep track of them.  I am VERY happy with the firmware itself, as I couldn't even get the radio programmed properly prior to this firmware.

Спасибо за тесты

На текущий момент меня больше беспокоит формирование TS в DMR...
В режиме пониженой мощности мы имеем проблему с TS и высоким уровнем ошибок магнитуды Magnitude Error.
Предстоит решить данную проблему...



145MHz 1Watt (TS Bad)



145MHz 5Watt (TS Good)



435MHz 1Watt (TS Bad)



435MHz 5Watt (TS Good)

I will just say thank you again to all the devs.  I know reverse engineering a radio firmware is not an easy task.

It doesn't help that the documentation that is available for things like pin functions do not always match their actual usage.
Messaging with Roger, he also believes that one company produces the BaoFeng hardware and another company produces the firmware for the radios, meaning there is a disconnect there as well.

I don't know very much about software engineering, just a little bit of code here or there, so I appreciate when people take time to go out of their way to decode these systems.

The work done here will also make other open source firmware ports to other handsets possible!

Update - Some of the issues I found were user error.  I'm not used to the OpenGD firmware and made some mistakes.  I crossed out those issues on the list.