iPhone Missing a part of the screen at the bottom

[hnguyen1982]

I do not know why my iphone 4s is missed a part of the screen at the bottom, ios 6.1.2, anyone can help me, many thanks
update: restore ios 8.1.1 still not fix this problem, i don`t think that is a screen issue because at the apple logo screen when i restart phone, it still full

 

[GGJstudios]

I do not know why my iphone 4s is missed a part of the screen at the bottom, ios 6.1.2, anyone can help me, many thanks

While it doesn't look like you are, did you try double-tapping the screen with 3 fingers, to see if you're zoomed in?

 

[hnguyen1982]

While it doesn't look like you are, did you try double-tapping the screen with 3 fingers, to see if you're zoomed in?

Thanks bro, i tried to zoom in and zoom out but can not fix this problem

 

[GGJstudios]

Thanks bro, i tried to zoom in and zoom out but can not fix this problem

You may need to wipe the phone and restore from a backup.

 

[hnguyen1982]

You may need to wipe the phone and restore from a backup.

My phone is locked version so if i restore it , i have many things to do and i do not want to upgrade to 8.1 , do you think my phone has a dead bottom line?

 

[GGJstudios]

My phone is locked version so if i restore it , i have many things to do and i do not want to upgrade to 8.1 , do you think my phone has a dead bottom line?

No, it looks more like some weird resolution setting.

 

[hnguyen1982]

the screen is normally at the APPLE logo screen, i restored by ILEX RAT but can not fix

 

[hnguyen1982]

update: restore ios 8.1.1 still not fix this problem, i don`t think that is not a screen issue because at the apple logo screen when i restart phone, it still full