The thing is i haven't had even one issue with these batteries i bought. Don't get me wrong they were not cheap rip off batteries, they really were value for money. once i established that i spent even more money to get more of them and i was happily flying till last month. Coding in the sense that when you try to force a previous firmware onto the system it registers it as either old or the same as the current one or corrupt. so if someone could manipulate a FW bin file so that the system would accept it would be great. on another note if there was someway to wipe the system completely and then manually install 1.0 to 1.4.