new to jaguar please help

[pnk]

i did a hard reset by disconnecting the negative lead on the battery left it for about hour.  now my xf r-sport wont respond to either smart keys not even the central locking. when i try to start my car i get an invalid smart key response on the dash. i have had the keys checked and there working fine. also unable to pair a new key to car message says failed. only had car about 3 weeks does anyone have any ideas whats going on ?

[Ma1co1m]

Have you tried the little port for the key in the lower dash right side of steering wheel? 

[pnk]

my xf doesnt have the key port but i have tried putting the key in the right spot but dash says smart key error

 

[PaulT]

The XF does not like having the battery disconnected. When these problems occur Jaguars solution is to replace both the Front and Central Junction Boxes and reprogram - cost over £1k. Find a garage with Autologic software and they will reprogram without changing the JBs normally for under £100.

If you change the battery always connect a slave battery with wires to the clamps so that the car never loses power.

 

[Tomato]

Sadly most modern cars are like this now, royal pain