infinity coder aldy make clear b4...this should help u
"ChineseMiracle": How to repair "reboot/restart/freez with SIM card"
1. make full flash backup for emergency case (use 921000 speed for fast operation)
2. select "safe" format method
3. make "format ffs"
4. remove/install battery
5. press and hold phone "Power" button during 30-40 sec to make phone Powered-On
if phone Ok go to step-6
if phone still in reboot/restart/freez state: select "complete" format method and go to step 3
if phone can't Power-On: restore original flash backup
if you don't have original backup: write different firmware files with firmware version similar to original (make ask/rpl if need)
6. restore original imei
7. if phone has touchscreen LCD make calibration: click to LCD corners one by one
if still no luck: check phone hardware
Original Link Here
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acyl2000