Default [Q] qmobile A7 stock Rom.

hey.
I have Qmobile A7. i partition my device's internal memory.
which i succeeded with MTK data partion.
but now i can not restore my stock Rom from my backup which i restore many times earlier.
when restore complete from TWRP and i reboot.the logo remains on screen and nothing happen until I remove my battery. plz anyone help me. plz
plz
plz