Vivo y91 dead while trying to unlock pattern and bymistake deleted all partation

Please help i was unlocking
Vivo v91 qualcomm
Pattern but by mistake i eresed all
Partation and now set is dead
Qfil is not working because showing lots different
Type of error some cases it shows
Download success with in 30 sec but set is not
Power on.. someone help please
Thanks in advance
Sorry for my bad English