here's a quick and easy way to do it without going thrue the orange developers website.

1. connect the spv c550 to the computer with usb cable and put has guest partenership.

2. run HTCUnlock-CVS.exe from the pc

3. on the phone, go to start => acessories => htc unlock

4. press right top key ( unlock ) software will change the registry and will disable the untrasted aplications protection on the phone.

5. copy file cert.cab to the phone and run it

6. run spv services and do the rest of the job

7. go for a beer, the job is done


PS: do not run htc unlock on a c500. the registry is diferent.

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if any problem with this s/w may be not connect with pc or another //just formate the mobile ..how to formate see in jpg image
thats alllllllll

enjoy !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!

Srini.unique