Lenovo A850 Too many pattern done

 

Care your phone battery charge is full

Get imidiat your phone power off and hold

Power botton + vol up holding 4-5 sec now show

Recovery mode

Fastboot mode

Normal mode

Select recovery mode with vol up

Now show

1-reboot system now
2-apply update from adb
3-apply update from sdcard
4-apply update from cache
5-wipe data/factory reset
6- backup user data
7-restore user data

select wipe data/factory reset 

now show is

no

no

no

no

yes delete all user data---------

no

now selected yes delete all user data wait some  time

again show

1-reboot system now
2-apply update from adb
3-apply update from sdcard
4-apply update from cache
5-wipe data/factory reset
6- backup user data
7-restore user data

 

now selected reboot system now restart your and enjoy it