Final version.
Note:By doing this you understood that you can brick your phone if you do something wrong.I am NOT responsable to your actions,i am NOT respondable if you will brick your phone.I had done this with a k750i@w800i r1bc002 cid49 and i had no problems.
This Tuturorial works for cid49 phones:
K310i R4DA044 MAIN GENERIC
k310i R4EA031 MAIN GENERIC
k310i R4EC001 MAIN GENERIC
k510i R4CH003 MAIN GENERIC
k510i R4DE001 MAIN GENERIC
k510i R4DF001 MAIN GENERIC
k510i R4EA031 MAIN GENERIC
k510i R4EC001 MAIN ORANGE
K750i R1AA008
k750i R1BC002
K750i R1CA021
K750i R1DB001
W300i R9A03
W550i R4CB020
W600i R7CA017
W700i R1CA021
W700i R1DB001
W800i R1BC002
W810i R4DB005
W810i R4EA031
Z550i R6CA009
Z530i R6AC001 MAIN EU ----->NEW
Z530i R6AC001 MAIN EMEA ----->NEW
Z530i R6AC001 MAIN US ----->NEW
Z530i R6BA030 MAIN GENERIC MU ----->NEW
Z530i R6DA001 MAIN GENERIC ----->NEW
But if you have cid36 you don't have to flash the fake main and the restore file!
for k310i:you must flash the fake main k310_p3k_dcu.49R.ssw and in farmanager you must select w300_w810_z550_CID49 (tested on esato)
for k750i:you must flash the fake main k750w800_r2e_dcu.49r.ssw and in farmanager you must select k750_w800_CID49
for w800i:you must flash the fake main k750w800_r2e_dcu.49r.ssw and in farmanager you must select k750_w800_CID49(tested by me)
for w810i:you must flash the fake main w810_p3k_dcu.49R.ssw and in farmanager you must select w300_w810_z550_cid49
for w300i:you must flash the fake main w300_p3k_dcu.49R.ssw and in farmanager you must select w300_w810_z550_CID49
for w550i:you must flash the fake main w550_r2e_dcu.49r.ssw and in farmanager you must select w550_w600_CID49
for z550i:you must flash the fake main z550_p3k_dcu.49R.ssw and in farmanager you must select w300_w810_z550_cid49
for k510i:you must flash the fake main K510_p3k_dcu.49R.ssw and in farmanager you must select w300_w810_z550_cid49
for w700i:you must flash the fake main k750w800_r2e_dcu.49r.ssw and in farmanager you must select k750_w800_CID49
for w600i you must flash the fake main w550_r2e_dcu.49r.ssw and in farmanager you must select w550_w600_CID49
for z530i you must flash the fake main z550_p3k_dcu.49R.ssw and in farmanager you must select w300_w810_z550_cid49 -->>NEW
Click here for download thing for moding k510i
Click here for download thing for moding k750i/w800i(you must register but it's free)
Click here for download thing for all phones(you must register but it's free)
here are the links:
FarManager,fake mains and rest files here
SeTool 2 lite here
XS++ here
Also you need usb flash drivers from here (thanks to number1 for link)
Here are the steps.Before do something read this carefully and be sure you understood!
1.go to Xs++ folder(where you extracted it)

2.start XS++

3.Click start and connect the DCU-60 cable while pressing the c button

4.check to flash MAIN. Click ‘…’ and go to How to customize cid49 part2/ssw. Select the file according to your phone model, in my case, ‘k750w800_r2e_dcu.49r.ssw’ (for K750/W800/W700 CID49) . Now hit flash . 5 flashblocks will be loaded in 5 seconds!!!). Now our MAIN is patched.Close XS++, Unplug fone and re-insert battery to refresh

5.Now go to How to customize cid49/Far/

6.Start FarManager


7.Press F11 and select SEFP 0.10.0.51

8.In the following screen select… DeviceCU60, Speed: 921600 Boot Script: According to fone model (k750_w800_CID49 in my case).Now Enter The MATRIX!!!Your fone should get detected. after a few seconds, a screen will show you two folders, FLASH and FS.

9.Double click on FS

10.Do the job you wanted.Click here for see what you can do with FarManager.
11.Now, that we are finished with our operations, we need to shutdown the loader. For this keep on clicking ‘..’ (root of folder) until it asks you to shutdown CSFS loader. Click yes and close FAR manager, and unplug fone. Reinsert battery to refresh.IT IS NECESERLY TO CLOSE FARMANAGER AND REINSERT THE BATTERY.IF YOU DON'T DO THIS FARMANAGER WILL GIVE ERRORS!

NOW IT'S TIME TO RESTORE THE REAL FIRMWARE.THIS CAN BE DONE WITH 2 METHODS.
I.Using Farmanager(this works for phones that Farmanager can enter in flash),for example w800i.
12.The final step is to un-patch the MAIN firmware. Again, open FAR manager program, and connect fone, the same way as before. This time goto FLASH instead of FS

13.Now your inside FLASH. On the left side, you are in FAR manager folder. go to How to customize cid49 part2 folder and then to REST. You see a number of files… with prefix ‘REST_’ followed by your fone’s firmware version.

14.Select the appropriate file of your MAIN firmware (I have a k750 flashed to w800 r1bc002 main so REST_W800_R1BC002 in my case but if you have other phone select the phone with your firmware ) and drag it to anywhere on the left side.Hit copy

15.Then hit flash.After the report come close FAR manager and unplug your fone. The job is done!!!

II.The second method is working for phones that are not supported by Far or for the phone that Farmanager cannot enter in flash..for example w810i
Here are the steps.
1.go to the folder you extracted setool 2 lite and start setool 2 lite..
2.select your phone type
3.Press identify
4.Where it's written RESTORE FIRMWARE you must browse for the restore file for your phone model and firmware
5.Now press Flash
6.After the flashing is complete your firmware was succesfuly restored..
Thanks go to:gbrooks, lemming, hendrix and jagheterfredrik and other who helped in develop of xs++
darkmen for developing Se Flash Plugins
Se-nse members for helping me customize my phone and make a tuturorial about customizing
And others
Thank you all!
