Stray Star Battery Replacement
The replacement battery needs to be installed - you can use the SIM installation instructions to see how to open up the device to access the battery. Getting the old battery out can be difficult - you might need to gently prize it away from the adhesive strip. Also be careful not to damage the terminals when disconnecting and reconnecting the batteries.
If you are in any doubt about doing this - please contact us to arrange to have your device sent in instead, and we'll do it for you (you will still need to pay for the battery and postage).