Hello, I am trying to start the car. The battery is very dead. So I opened the car with the Hard keys and opened the hood. As soon as I applied the cables, the alarm started beeping. I am not able to turn the alarm off. Any help?

Also, how do I open the boot to change the battery? asking because the battery is dead, boot is motorized. Also

Please help. NEW to the LR family

 

Alarm should quiet, once the car sense the key. Do you have traditional ignition to insert the key, or mine is having a bump on steering wheel column, where you need to hold the **** in case the **** batteries are dead.
I don't know about emergency trunk opening, but when my battery went dead, I jumped the car on front jumping posts and then could use the switch to open it.
Crawling over rear seat to get to the battery was my 2nd option.

 

Are you using a charger or jumping from another vehicle? If you are using a charger you may need to leave it charge for a while. But by now I guess you would know if that helped.