How to change a battery on a Vauxhall Opel key fob Zafira b

Here’s a video on how to change the battery on this style of Vauxhall Opel key fob

[@dinsdalepiranah1189]

Very useful video. Just did my key. Thank you.

[@drivewaydiyer6504]

Glad it helped.👍

[@thedave7760]

@@drivewaydiyer6504 Do I have to somehow reactivate the key?
I just did mine now and doesn't work.
Battery is 3.25 volts and I have cleaned all the contacts and polarity is correct.
I was working a few minutes before I changed the battery.

[@Natalie52]

Perfect, thanks mate!

[@drivewaydiyer6504]

👍