6120c blue screen solve with Mx-key 100% -Nokia

Phone Display Blue Screen only ( can’t make a call )
Phone can’t put into local mode
Can’t solved with standard flashing


Open Mxkey Software 
Pick Ufs 3 as an interface
Pick Nokia Service tool
Pick 6120c model
Pick ” Service ” tab
Pick ” Quick Fix ” tab
Tick ” BB5 RAP3 NAND Erase User Area “
Click ” Do Selected Job ” Button
Wait until process done
Click Bus Check, phone must be local mode
For better result, do standard flashing after this step.