W600i shows "configuration error" apply patch!

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?

You must finalize your phone :

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Finalization = Completing flashing operations and storing basic settings that phone needs to properly operate [i.e. security certificates, (and this is why phone displays "configuration error" if it is not properly done)].

Firmware has two parts:
1. FS: It contains languages, images, sounds, animations, settings, etc. Anything that isn't pure software.
2. Main: It contains the software.

Note: MAIN and FS HAVE to be the same software version
MAIN R1BC002
FS R1BC002
Customization has to be same region as FS, in this case
FS = EU5 (EUROPE_5)
Customization =CDA102338/50 ( EUROPE_5 Sunrise Switzerland)

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Nice day

How do you finalize your phone ?? and what does that mean?

Look here under 4.point:

XS++ 3.1 Guide-Flashing, Customizing, Recovering

Nice day

Just wondering would using a generis MAIN and a regioned FS cause a [roblem as long as they are the same SW version?

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Originally Posted by dcalabrese

Just wondering would using a generis MAIN and a regioned FS cause a [roblem as long as they are the same SW version?

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No thay don't cause a problem