[BUG] Can't upgrade galaxy buds3 pro to version AYB3

Hi
I have been using the version AYB3 in my buds 3 pro that I flashed using the android app months ago. Now I am trying to install the new version AYG2. It finish OK but when the earbuds boot the are using the previous version. Indeed if I try to flash a previous version It happens the same. It seems like that I can't change version
Any help will be very appreciated
