Handbrake warning light

So picked up my 2000 110 after it's mot noticed brake warning light stayed on. Checked connection under the handbrake boot. Looked ok. Checked brake fluid levels good. Brakes and handbrake works as they should ie don't feel spongey. Any advice as to what I should try next please. Garage did say they did something to brake pipes though.

The only advice I can give you is to ask in the Defender section of the forum

https://www.landyzone.co.uk/forum/defender-90-110-130.7/

Okay I will post in there. Thanks