CHIRP

I also can no longer program my bf-888 radios. I have 3 all purchased at different times and I can read from them but when writing to 2 of them i get an error "failed to send block to radio ####" where "####" is a a 4 digit number and it's not always the same. I seem to be able to write successfully to 1 of them though. Sometimes it will program a few memories (i read them back to check).

same here, until one of my bf888s become brick

All, please always submit a debug log as described in the Wiki "How To Report Issues". Without it it's usually impossible to determine what's wrong.