It will remove all the data ,contacts and apps that you installed
Sky is the Korean mobile manufacturing company cell phones, here, etc. Here I show how to remove pattern lock on mobile phones sky A800S and A820s. Before you do that to bring back up important data in mobile memory, as all data will be deleted on the phone.

Power off mobile then press and hold Volume up + Camera + Power button together.
When android logo appear tap on logo select wipe/delete data then select delete all data and reboot mobile.
SKY A800s Vega LTE Restore Factory Hard Reset Format Phone.So lets start the SKY A800s Vega LTE Restore Factory, SKY A800s Vega LTE Hard Reset.Turn Off the mobile phone for few mints.SKY A800s Vega LTE Remove Pattern Lock.
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Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.
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