Remote contol key bmw e39 doesn't work.Last time a continous red light and after nothingI repro

My remote control key for bmw e 39 doesn't work.Last time was working perfectly and once I saw continous light on the remote (red) and nothing after.I have tried to reprograme the key as in owner's manual but still nothing Did anybody has any idea? thank you

Remote contol key bmw e39 doesn't work.Last time a continous red light and after nothingI reprogramed andstillfree spyware

try a new battery in the remote.

Remote contol key bmw e39 doesn't work.Last time a continous red light and after nothingI reprogramed andstilllive update

Other than trying new battery and resoldering the pcb where the buttons are attached.

Not a lot more can be done.
It needs a new battery but you only have 15 seconds from removing the old one to replace it or it will need to be reprogrammed by the dealer with a DIS machine.