Land Rover Repair: disco alarm problem., thob, testbook

Question
went to start car, alarm went of,thought this was battery problem,changed battery,key thobs would not open door,but key would soon as open door alarm goes of, spoken to local agent, he said lock door with key,unlock put key in ignition start car.did this opened door alarm went off car would not start,key thob will not lock door, but key will and sets alarm.

Answer
At this point you are going to need a main dealer or a shop with an Autologic or T4 Testbook or IDs system.  Those are the only tools that talk to the security comouter in your vehicle.  There's nothing more to be done at home beyond what the dealer already told you