How To Reset Android Phone Karbon A21

Charge the battery 50 percent.
close up your Android phone.
Now Press HOLD VOLUME UP + HOME + POWER KEY 10 second ( Remember that 10 Second )
IF you see green colour , don't release the pressure
once android system recovery menu seems, unharness VOLUME key.
Highlight wipe data/Factory reset victimization volume key.
make sure with Power(or use MENU key if Power key doesn't work) or Cancel victimization BACK key. Highlight yes-- delete all userdata. make sure once more with Power(or use MENU key if Power key doesn't work).
once the arduous reset is finished, highlight boot system currently and ensure your choice.

Note! All information are going to be deleted
GOOD LUCK !

If you don't understand , see this video :

keyword :
Remove Pattern Lock Karbon A21
Clear Google Account Karbon A21
Hard Reset Factory Setting & Clear Pattern Lock and Google account Karbon A21
You are no need spend money or no need to go a phone repairing shop
You can easily self reset your cell phone or clear patter lock / Google account in Karbon A21