Tutorial Crossflash K550i to W610i

It's not difficult to crossflash K550i to W610i. With this crossflash you will get a walkman player with megabass and some flash menu. But after you crossflashed, the lens cover wouldn't work. So if you want to take photos you have to press the shutter key first.
Tool needed:
1. USB Flash driver
2. XS++
3. A cable data
You can download that tools at www.topse.ru
After you download all tools needed you have to download main firmware and file system for W610i. You can find it at www.4shared.com
How to start it?
Installing usb flash drive.
Turn off your phone, remove the simcard and reinsert battery but don't turn on your phone. Now hold "C" key and connect your phone to computer.
You should get a notification in System Tray ! Saying SEMC USB Flash Device
A new window should appear "Found new hardware wizard"
It asks permissions for to search for drivers for the device. Select "No, not this time" and click next.
Then select the option "install from a specified location(advanced)" and click next
Then choose "Search for the best drivers in these locations", and check the "Include this location in this search", now browse for the downloaded drivers.
Click next, Wait for some time, drivers get installed.
Now.......
Open the directory, where you unpacked the archive, In the directory, you will find a ggsemc.inf file. Click on it with the right mouse button, and then click 'Install'.
Your phone ready to cross flash.
Unplug your phone from computer, remove battery and reinsert but don't turn on it. Start xs++ then click connect button. Then hold "C" keys until you get notification phone ready for operation on left side of xs++.
Firstly you have to make a GDFS backup your phone. Click the "gdfs" button then choose "gdfsbackup". Wait a moment while xs++ make your gdfsbackup. GDFS contains a very important variables need to start phone ! If the gdfs is corrupted then starting the phone will not start turning to a dead phone ! GDFS rarely gets damaged ! But as a precaution we make a backup of GDFS so that in case your GDFS variables are messed up then we can restore the backup and save the phone !
The last, it's time to flash your main, filesystem and customization.
Reinsert battery, hold "C" keys and reconnect your phone to xs++. In xs configurations choose "flash main" then browse your main firmware file, then chose "flash filesystem", browse your filesystem file. For custumization choose K800i(it will work, don't worry) and for CDA choose your region. Then hint "flash" button and wait until xs++ saying "flashing succesfuly". Unplug your phone from computer, insert simcard, reinsert battery and turn on your phone.