[danezeq]

..To restore internet connection i have to enter into flight mode and then stop it (or restart etc..)

My phone is Redmi, android 10.
Im using 2 sims. the secondary is a prepaid without outgoing calls and data.
The internet is defined to use only first sim.

if i eject the secondary sim the problem stops. if i use another secondar sims from a friend, the problem stops again.
What can cause this issue?

[belodion]

Perhaps your secondary SIM is bad?

[mustang7757]

Could be a bad sim try swapping sim in their slots and see if that sim follow the other slot

[danezeq]

Nothing helped. ofcourse it's this sim.

[mustang7757]

Nothing helped. ofcourse it's this sim.

Turned our to be the sim itself?

[danezeq]

yes it's the sim, beacuase it doesnt heppen with another sim i tried.
But i need to use this particular sim...

[mustang7757]

yes it's the sim, beacuase it doesnt heppen with another sim i tried.
But i need to use this particular sim...

Can't get another one from your service provider?

[B. Diddy]

Getting a replacement SIM is typically a simple process. Are you unable to contact your carrier about this from where you currently are?