Download Nokia X RM-980, RM-981 Stock ROM, And Flashing Tool:
Step 1: Download tool and rom, then install the tool first.
Step 2: Extract the ROM and copy to the following path: C: \ ProgramData \ Nokia \ Packages \ Products ( NOTE: ROM folder is RM-XXX,
Step 3: Launch Launch Care Suite and select Product Support Tool For Store 5
Step 4: Continue to choose Work Offline
Step 5: proceed as follows:
Step 6: Continue to select the image below to switch to flash rom stage:
Step 7: Now just connect the phone to the computer and reboot the phone (keep Volume + Volume down) Nokia Care Suite to identify and put the Phone into FLASH mode. (If the error or retry tool, keep hold down Volume + until vibrator then click the Retry .