So when the original root came out i think a month ago i got on the root bandwagon. After I rooted my phone it turned from an x10a to an x10i. Recently i was trying to find a way to get it from an x10i to an 10a. There was many methods one from the x10 blog but that was no help. Same with the flash tool one on xda, that bricked my phone.
Then I found this omnius method buried in the xda forums posted by pally777. So thanks to him
http://forum.xda-developers.com/showthread.php?t=694736
Read over FIRST then attempt, hope its helps.
1)First make an omnius account and use your REAL email and then after open the email in your inbox and confirm it. Then go back to the omnius site and install the omnius program. It is around 50mb i got version 0.08 beta
2)Then download this if you want to go from some random x10i to the original rogers firmware
http://hotfile.com/dl/43225669/598add6/ ... K.zip.html
3)Heres where you can get other firmwares for your needs
http://forum.xda-developers.com/showthread.php?t=683793
4)After that extract, and run omnius.
5)when omnius has opened, go to settings-server settings, then enter your omnius user name and password.
6)turn off your phone and remove your battery then put it back it, DO not turn on your phone
7)Then click on identity and plug in your x10 holding the back button. The flash mode procedure.
8)Then after it identifies your device and is all successful, you'll know when its done when a green successful shows. Restart omnius. Then turn on your phone, turn it off, then take out battery, and put it back in. Do not start it again.
9)Then extract your firmware to your desktop, inside should be 2 files a phone.zip and the other should be android_1233...zip or something else depends on the firmware
10)On omnius besides the identify button there should be a flash button. click that when you do you will get a pop up. like this--http://img203.imageshack.us/i/flashy.png/
11)in the applications box select the phone.zip on your desktop or where ever you put it
11)in the customization box select the other file, android_1233...zip
12)then press ok, it will take a while
13)then it should say successful on ominus, unplug the phone take out the battery and reboot. You should be back to your original firmware. Initial boot will take a while.
all thanks go to pally777.