it must be B340 or B350.
Do one thing, try dload and see if it makes any difference.
http://update.hicloud.com:8180/TDS/...el_in/update_data_full_BLN-L22_channel_in.zip
Unzip this file and extract the package. You will get few files including update.app.
Create a folder dload under SD card and copy all the files (extracted above) to this folder.
Power off the phone. Remove USB cable, if connected.
Press volume up+volume down keys and simultaneously press power button (3 keys together)
Your phone will automatically detect the package and will start the update process.
Once the update process is successful, you will get a message as update was successful and your phone will restart automatically.
During restart, phone will verify the system image.
This verification and 1st boot may take upto 2-3 minutes so do not panic.
Once booted, try factor reset.