First Connect Dongle On Your Computer And Click Cm2 Icon And Open Cm2 Tool From Your Computer.After cm2 is open,Select the boot that matches your phone.
Select from the tab at the top, go to the Extra menu.
Then Click Test Flash Ic Then See Result.
If Say TFAILED: READONLY]: Emmc State Seems As READ-ONLY!!!!,You Need Repair Emmc Flash Ic Then Flashing required.