OpenGD77

Now I leave the GD running with genuine flash memory in order to spare the soldering pads. Perhaps it will get an explanation in the future. Thanks very much for your support!
73 de Ingo DF1OG

Of course, not in firmware mode
I have checked the W25Q64 and W25Q128, which were´t working. I can program, verify and erase the devices. Therefore definetely no OTP (would be possible from Chinese source).

But flash backup with opengd77 CPS and opengd77 firmware.

Yes backup from genuine flash and calibration data.

As I remember, the CPS couldn´t access the flash with some i/o errors.

Dear Daniel, I have checked the flash memories with my universal eprommer. Fortunately I have the right adapters for these little things :-) For Winbond 25Q128fvsg: EF 40 18 For Winbond 25Q64fsvg: EF 40 17 For BoyaMicro 25D80ASTIC: 68 40 14 (the genuine flash memory in my GD-77) Meanwhile I have fit...

Hi Daniel,
thank you for your immediate reply. I have used the same 25Q64fvsg in my first GD-77 and all work fine. Where I can get/see the hex-ID? At the moment I have re-installed the old 25D80ASTIG in my second GD-77.
73 Ingo

Hi everyone, in my GD-77 I found a 1 MByte 25D80ASTIC flash memory from BoyaMicro . I tried to replace it with 25Q64fvsg and 25Q128fvsg from Winbond. The CPS refused to restore the flash from file and stoped with an error report. I had to replace the old part to get the GD-77 working properly again....