Remote key fails

Does the remote give any indication of working?
IE my car key has a little LED that blinks when you press a button.

It could be the battery connector is damaged, IIRC Vauxhalls from a certain period were well known for the battery connector breaking when you replaced the battery, or it might be something like the key needs resyncing with the onboard computer after a battery change (IIRC some cars require you to put it in the ignition and turn the key to a certain position and possibly press a button to get it to work).
 
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Hi can anyone help my remote key on my 2011 Renault twingo it will not open doors put new battery in but still no success.
See if this thread helps.
 
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