P769 data working but no calls - LG Optimus L9 P760, P765, P768, P769

Hi,
I am using P769 with stock JB 4.1.2. I have to restart the phone frequently as I am not able to make outgoing calls. Also the person calling me gets the phone is switched off message. The 3G data works perfectly throughout. The phone works few hours after I restart and again randomly blocks the calling. I tried factory resetting it several times. What would be the problem. Pls help.
Regards.

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no it's strange , meter read anything like this before , take a backup using kies and reset your phone

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Thanks for taking a look! I'm on the Note 3 (SM-N9005).
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Redmi Note 9 Pro Stops Making Or Receiving Calls (Jio 4G Sim)

So this problem has been persisting for over a year now. I live in an area with great connectivity. All my family members have Jio sims and have never faced a problem.
Problem: I have two Jio sims in my phone. Sometimes my phone becomes unreachable or says 'number is switched off' when someone tries calling. If I try calling, it just shows call ended. The signal strength is always full and mobile data also works.
Restarting the phone or putting the phone in airplane mode and then back solves the issue.
Sometimes someone would call me, the phone would ring but I won't receive the call and then my phone would ring 30 minutes later and when I press answer, the app would hang.
Solutions I have tried:
- Factory reset my phone 3 times.
-Bought a new Sim
-Volte and WiFI calling is enabled, tried disabling also, but doesn't work
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Still problem is persisting
Please help, I don't have money for a new phone and I'm in the middle of job searching and I can't afford to miss recruiter calls
Jade1235 said:
So this problem has been persisting for over a year now. I live in an area with great connectivity. All my family members have Jio sims and have never faced a problem.
Problem: I have two Jio sims in my phone. Sometimes my phone becomes unreachable or says 'number is switched off' when someone tries calling. If I try calling, it just shows call ended. The signal strength is always full and mobile data also works.
Restarting the phone or putting the phone in airplane mode and then back solves the issue.
Sometimes someone would call me, the phone would ring but I won't receive the call and then my phone would ring 30 minutes later and when I press answer, the app would hang.
Solutions I have tried:
- Factory reset my phone 3 times.
-Bought a new Sim
-Volte and WiFI calling is enabled, tried disabling also, but doesn't work
-Tried keeping Dual 4G on, it didn't work, tried turning off, it didn't work
Still problem is persisting
Please help, I don't have money for a new phone and I'm in the middle of job searching and I can't afford to miss recruiter calls
Click to expand...
Click to collapse
My phone just started having this same issue. I have a redmi note 9s
Jade1235 said:
So this problem has been persisting for over a year now. I live in an area with great connectivity. All my family members have Jio sims and have never faced a problem.
Problem: I have two Jio sims in my phone. Sometimes my phone becomes unreachable or says 'number is switched off' when someone tries calling. If I try calling, it just shows call ended. The signal strength is always full and mobile data also works.
Restarting the phone or putting the phone in airplane mode and then back solves the issue.
Sometimes someone would call me, the phone would ring but I won't receive the call and then my phone would ring 30 minutes later and when I press answer, the app would hang.
Solutions I have tried:
- Factory reset my phone 3 times.
-Bought a new Sim
-Volte and WiFI calling is enabled, tried disabling also, but doesn't work
-Tried keeping Dual 4G on, it didn't work, tried turning off, it didn't work
Still problem is persisting
Please help, I don't have money for a new phone and I'm in the middle of job searching and I can't afford to miss recruiter calls
Click to expand...
Click to collapse
Try reinstalling the firmware

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