Hello from Slovenia!
I own HTC Titan II, bought in China, with american network AT&T, great phone, but I done a big mistake. I used to update Seven-Eighter app, everything went great, but at the end send me an error - I tried again and again, but all the time send me an error. Than I tried update with unmarked languagues, Seven-Eighter app updated to the end successfully (mistake!!!), but Wi-Fi option disabled, I cannot open messages and a lot of other features don't work.
Downgrade with Zune didn't work for troubleshooting above errors. Current phone software version: 7.10 (8783)
What should I do now? Comments please.