Test report:
2011 Volvo C70 all keys lost success using Autel IM608 and XP400. First one I have done. Got through it nice and smooth.
The 5-button Fobik key i got from ebay. It can be used on 2006-2013 Volvo C70 (aslo some C30, S40, V50).
You have to remove CEM module and save 2 files from CEM. Solder work.
Remote control is working as well.
