OpenGD77

Hi, I upgraded to this version and had a significant drop in GPS reception. Is this a known issue? Don't want to roll back to a previous version, but the GPS issue is bothering me.

I am really embarrassed, but I wanted to write how I fixed the issue, so people can see this and try what I didn't I did not have access to another computer to assuming this was a driver issue, I just deleted my disks and reinstalled everything in my mind making it equivalent to another computer as ...

It says 2311 in it without any VX text so I am assuming its a V5

I believe a non-standard bootloader is the issue I am just upset that it used to work when I installed it 2-3 months prior and worked without issue. I searched online for the original bootloader file to no avail do you have access to the bootloader or can you point me to the files. I don't think the...

The seller was able to restore the original firmware in Turkish to the device but when I tried to flash OpenGD77 again the same issue happened.

I was also able to upload opengd77 firmware to a tyt uv390 device so I think the drivers are working

Sorry for the late reply. I found another pc to try it on I am getting the same errors in
original cps read and write
original firmware bin upload
opengd77 firmware upload
opengd77 cps read and write

nothing changed unfortunately my drivers and other software are in order.

I tried using the UpgradeDownload app to flash the original firmware, however the original firmware could not be flashed with the same erase/write error.

I already did install the drivers from scratch just to be safe but unfortunately nothing changed.

I am using this exact version of the driver on Windows 10, the device is displayed as STM DFU on the usb list in device manager