I recently changed my battery on my beloved x150 but now I have no touch screen radio a/c, tried all the fuses ( 3 boxes ) all fine, have heard I will need to drive over 10 miles to allow screen a re-boot but not too sure ? Any ideas please

 

Your battery is probably not fully charged.

I redact that. Your replacement battery is absolutely not fully charged to the spec required of this fine machine.

 

Disconnect the battery - fully charge it and reconnect. Sometimes a power down and reboot will cure these odd system faults.

 

Alternator might be bad as well..