CHIRP

I see the error in your debug log. That definitely shouldn't be happening, but I'm not sure what to say about why your radio is reporting an unexpected block. Have you updated the firmware, perhaps? Maybe @Sander van der Wel has an idea as he wrote the driver this is based on.

Just FYI, the original GA-510 and the "new" one are completely different radios internally. They share nothing other than the similar-looking case.

Dan Smith wrote in #note-1:

I see the error in your debug log. That definitely shouldn't be happening, but I'm not sure what to say about why your radio is reporting an unexpected block. Have you updated the firmware, perhaps? Maybe @Sander van der Wel has an idea as he wrote the driver this is based on.

Just FYI, the original GA-510 and the "new" one are completely different radios internally. They share nothing other than the similar-looking case.

It might be the case that an upload was interrupted before finishing. If you don't have a backup of your radio, you can try to upload the test image from GitHub:
https://github.com/kk7ds/chirp/raw/refs/heads/master/tests/images/Radioddity_GA-510_V2.img (assuming it's the new version of the radio).

Let us know if it worked.

If this is happening to others, I think this must be because of the fix for #11717, d1f8504e9209601f5c75c2c082ed8c7a96777b1b ? That's the only thing that has changed recently here.