Front camera does not focus on infinity (landscape)

[Zeeplay9]

Greetings.

I am facing a camera issue.
Front camera does not focus on infinity (landscape). It keeps it focus on close range constantly, which why close-up photos are good, but I cant make it focus on ladscape. Photos become blurred, unfocused and overal - very poor quality.
Tried various camera modes, HDR, different camera apps, hard reset. Nothing helped.
Is it a camera driver issue or hardware problem? Phone was never dropped, overheated or anything else
Thank you for attention

[Zeeplay9]

Here I will provide 2 photos of the same scenery: one made with main camera, another with selfie one. You can clearly see how blurred the main camera photo is. And it is not one time problem. 

[Uliwooly]

@Zeeplay9

check if there are scratches on the camera lens

[Zeeplay9]

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uliwooly wrote:

@Zeeplay9

check if there are scratches on the camera lens

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There are none. Phone's state is like new. It had no mechanical damage while using

[Uliwooly]

@Zeeplay9

does it has any screen protector (film or case)?

[Zeeplay9]

Camera lens? No, it does not.

[Uliwooly]

@Zeeplay9

The phone itself, does it has a protective case and/or film?

[Zeeplay9]

Yes, the phone has a protection glass on the screen

[Uliwooly]

@Zeeplay9

remove it and check again.

[Zeeplay9]

But how is a screen-protecting glass connected to the main 13mp camera, which is on the back?!