Hi guys, I've rooted my N1 since I own it (about 5 months), but I'm new to installing ROMs. I'm reading tutorials for a week now, and I think I'm (almost) ready by now... The "almost" is because of a few remaining questions ;-) I'm planning to install a Rooted / deodexed but stock FRG83 ROM. The reasons I want to install a stock ROM other than the one I'm running now is that in France, SFR (the French Vodafone) try to make us pay for tethering. They've changed our ROM and from what I've read on French forums, when enabling tethering, it opens a PDP Context, setting in a new APN that they track to make us pay. To avoid this extra-billing, the easiest method is to trash this damn SFR ROM to install a stock US ROM. And of course our Android updates are really slow to come (months after US), as Vodafone has to modify any OTA before (eventually) releasing it to us... From tutorials I've read, I've understood that a Wipe isn't necessary when using the same ROM "family" (like when installing a Cyanogen on top of a Cyanogen). So, as I have a stock FRF91, can I install an "almost stock" (stock but rooted) FRG83 Rom without a wipe ? ... and, depending on your answers : What is the risk of not wiping even if recommended ? And if I run all the wipes, what will I lose ? Will the games I play remember my achieved levels ? Are there ways to save things that will be wiped ? Thanks in advance for the help !