Well, now I have a stock ROM "running". WiFi doesn't initialize ( Error ), if I start it with MicroSD in it just Bootloops at the "y" of "Quietly Brilliant" bootanimation and if I switch it on when not charging ( even if battery is fully charged ) my Legend just infinitely bootloops at the green htc logo just before the bootanimation. Also, can't mount SDcard in Clockwork recovery.
I already googled it, without results. Nobody needs a system.img backup and similar things. If there is one on the web, it is too hidden and I haven't enought time.
Thanks for trying. My Legend is so grateful to you