Resync of BeCM and ECU?

Hi All,
Firstly I apologise for my ignorance of such things.
Secondly my P38 Range Rover has decided not to start anymore - nothing wrong with the battery, it worked absolutely fine until recently. The key turns but not starting so it's in capable hands at a garage just outside of Plymouth (Smithaleigh). They've managed to diagnose the fault as the BeCM not synced with the ECU but they don't have the tools to resync it. They have suggested they need a Nanocom to be able to do this? I'm not au fait with such things so my first question is can the Nanocom do this and would anyone in the Plymouth area be able to drop by and help them (and me) out as I would very much like to be driving again?
Any info/help would be greatly appreciated.
Thanks
Tristan

GEMS V8?

If so this should do it with an android device and elm327 bluetooth module
https://play.google.com/store/apps/details?id=com.flemcodesign.gems.gemsutility

Nanocom should be able to do it as well on any engine with the right licensing

Hi, you may be best to post this in the range rover section as you will get more help from the right people
https://www.landyzone.co.uk/forum/range-rover.10/

robertf said:

GEMS V8?

If so this should do it with an android device and elm327 bluetooth module
https://play.google.com/store/apps/details?id=com.flemcodesign.gems.gemsutility

Nanocom should be able to do it as well on any engine with the right licensing

Click to expand...

Thank you Robert. I shall pass this onto the garage.