Peugeot 207 key fob not working

[lion0304]

Remote key work before changing battery, after didn't. So the problem is between.

I've never need resync this rectangle remote just after changing bettery. Even after full repair the PCB , rarely need resync.

So the problem is during your changing battery, you dammaged the remote.

[Keyblade]

Remote key work before changing battery, after didn't. So the problem is between.

I've never need resync this rectangle remote just after changing bettery. Even after full repair the PCB , rarely need resync.

So the problem is during your changing battery, you dammaged the remote.

I checked the signal with KD900 after battery change and remote work ( got frequency 434 and ASK modulation info )

Remote chip also start the car i tried it and car starts, but i cannot resync remotes to work again.