I recently rooted my HTC Desire having Froyo 2.2 with Unrevoked3. Rooting was successful, however, after Unrevoked placed the recovery image, the system was back at OS 2.1 again.
How can I upgrade again back to Froyo 2.2? Installing the normal OTA update doesn't work I guess. At least it didn't when I tried. Can someone provide me some hints on how to do so? (Sorry, but it was my first rooting adventure.)