From model list Select C180 and click on Next button.
Click on Flash button.
From Baudrate drop down menu select 460800 for faster process.
From Mode drop down menu select Bin & TFS
Click on Browse button beside BIN File field and select C180xxxxx.cla
Click on Browse button beside TFS File field and select C180xxxxx.tfs
You need to use C450 NSpro cable and take battery out of phone.
Click on Write button and connect cable to phone to start flashing.
Do not touch the phone till all is done.
Notice: In case your phone has some software problems you can flash it with Repair Mode option Checked but you will lost the IMEI number of this phone so after flashing process finished you need to rewrite your phone IMEI again.