Hi, I'm very new in this area, I tried to flash my old w600i which has sim-locked from singular with the the firmware R7CA017 and the patch created by SIMLockPatchGen. It gives me "configuration error" and it askes me something that I have to check with my network provider.........Of course I won't do that. And do some dig in and flash back to my old firmware R7B049 and apply the patch.......It's pain in the ass and it took me lots of time. And finally.....yeh...lucky me, I cracked it...now i can use it with T-moile.
But nothing is perfect, I check the bluetooth with my friend's accura TL, it doesn't work......then I check the identy of my phone. it says the default firmware is R7CA017.......Can someone tell me how can I flash back to the old firmware (R7B049) and also can unlock me cellphone without showing the "configuration error" message?