The phone does not receive any updates. Is this the reason?

[Rehabfakhry]

 

[gogocar62]

If you have a Chinese ROM this should not be a problem.
Do you have an unlocked or locked bootloader?

 

[Rehabfakhry]

If you have a Chinese ROM this should not be a problem.
Do you have an unlocked or locked bootloader?

the bootloader is still locked, I haven’t touched it.

 

[gogocar62]

You still haven't provided any important information. What ROM version do you have?
It is possible that you have a "fake" global ROM installed on your Chinese device: (And that would be a problem/no more updates)

 

[Rehabfakhry]

You still haven't provided any important information. What ROM version do you have?
It is possible that you have a "fake" global ROM installed on your Chinese device: (And that would be a problem/no more updates)

My phone is a modified Chinese version of an unofficial global ROM, unfortunately.

 

[gogocar62]

And that's the problem, you'll never get any updates.

 

[Rehabfakhry]

And that's the problem, you'll never get any updates.

Is there a way to update manually?

 

[gogocar62]

not in this state