DB2020 patch unlock for db2020 - how to

[gsmsupport]

Translated from Polish manual from Astel. I hope you'll find it useful

Added patch unlock for db2020: W850(i), K800(i), K790(i), K610(i), K618(i), V630(i), W710(i), W710(c), Z710(i), Z710(c), Z610(i) CID 49 and 51

Unlock works only with cable/box rs232 like Cruiser 4 in 1 oraz USB Smart 4 in 1.
Before unlock pplease check if phone's battery is charged at least in 50%.

Procedure of unlock DB2020 CID49, 51:
1. Open KKClient v1.54, it will create directory "SLF_FILES"
2. Download SFL files from http://gsminfo.home.pl/_ftp/guar/Data/SFL_Files.zip and unpack into directory "SFL_Files"
3. Files must be in "SFL_Files" directory like for example X:\path_to_KKClient\SFL_Files\*.sfl where x: is your hard drive letter
4. Now KKClient is ready to work. Before unlock of each phone we strongly recommend to check if unlock of certain phone's firmware is possible or not ( for now it works only with USB cable )
5. If application tells you that your phone's firmware is supported please change cable into rs232 in menu, press SETTINGS and then press DETECT, wait few seconds and select COM port and kind of cable/box, then set speed (we recommend 921600), select option "use rs232 communication" and press ACCEPT.
6. If you unlock it for the first time please check if phone communicates by RS232 - press "READ INFO" and connect phone. If you do not have Autoignition cable press shortly POWER button in phone for ignition.
7. If everything goes without a problem you have to choose option "Simlock CID49, 51" and press button "FLASH PHONE".
8. Wait until program finishes - it can take around 50 seconds.

What should I do in case of errors ?
This method of unlocking requires few tricks and it may look like killing a phone. Do not worry - if you see any error please disconnect phone, remove and insert batter and check if phone powers on. If phone does not power on you have to flash phone only with main file (with the same firmware version, which was in the phone) and everything will be ok.

Phone's firmware version was not supported, but I tried to unlock it.
In this situation phone will be like 'dead', because there is no recovery file. You must flash phone only with main file and then everthing will be ok, but it will neeed 1 credit. Because of it we recommend to always check before unlock if certain firmware is supported or not.

Authorised reseller: http://www.gsm-support.net/se-kulank...t-p675.en.html