I've got an older phone, the Samsung Galaxy I5510M (Callisto), and unfortunately my region never received a gingerbread update. There are gingerbread roms available, however the radio does not work in my region. I have tried flashing the original froyo radio from my region, but the phone simply doesn't boot.
I also have an HTC ChaCha/Status(e810) which uses the same Qualcomm Snapdragon MSM7227, which from what I've been able to find actually also contains the radio.
The radios available for the HTC device are in a different format(and contain bootloader, and some other stuff as well) but hypothetically, if one were able to dump the radio binaries or something via terminal, one could simply flash that binary using Odin.
I'm wondering A) is this possible, and B) how could I dump my radio from the htc device for use on the samsung device?
Thanks in advance for any info!