Yep, so I’m familiar with how the chip works and how you can get uber cheap ones from eBay. It’s more that personally I don’t feel it’s right to fit it and then sell the car. If the buyer wants to do so then that’s their choice.
Webuyanycar currently offering £5100 which they’d reduce significantly once they’ve noticed the odd scratch or three.
Typically, I just went out to the car and tried my hardest to set the light off but couldn’t! I wiggled all the connectors, jumped up and down on the seat etc!