Redmi Note 9S international variant having issues with calling. - Redmi Note 9S / Note 9 Pro (Indian Model) Question

After last update my phone having some network issues. there are full signals ,but my sim card staying offline for calls while MMS,data is working fine at same time. i am unable to receive or do cellular voice calls. Tried a factory reset but problem was not solved. Always i do a restart to get it normal again.

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P769 data working but no calls

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.

Verizon Galaxy S6 Edge+ with T-Mobile SIM - Can't Make Outgoing Calls?

Hi Everone!
I bought a Verizon S6 Edge+ a few months back. Ever since, I can only make outgoing calls ~15% of the time. The rest of the time, when I dial a number, it thinks about it for a little bit and then just ends the call. Incoming calls work perfectly fine. I tried the following things:
1. Changing mobile network to Global - sometimes allows me to make the call, often time does not.
2. Taking out and re-inserting SIM - doesn't change anything
3. Toggling airplane mode - doesn't change anything
Any ideas of what I can try? Thanks so much D
I had same issue, followed instructions from (https://www.getdroidtips.com/g928vvru3cqb9-nougat-s6-edge-plus/) to rollback to previous version of Android i.e. Marshmallow (https://forum.xda-developers.com/s6-edge-plus/general/g928vvru3cqb9-odin-nougat-7-0-firmware-t3601427). Able to roll back, but that did not work, So used Verizon update tool to update back to latest firmware, now it works fine. Give a try and see if this helps.
I'm having this issue with an AT&T sim.
Global: Data is at H+ and can make calls.
LTE/CDMA: 4G LTE Data works flawlessly but cannot make calls and gives me an error stating "incorrect sim or sim error".
LTE/CDMA/UMTS: 4G LTE Data works fine however when making a call data goes back to H+ and stays there.
gallant_suri said:
I had same issue, followed instructions from (https://www.getdroidtips.com/g928vvru3cqb9-nougat-s6-edge-plus/) to rollback to previous version of Android i.e. Marshmallow (https://forum.xda-developers.com/s6-edge-plus/general/g928vvru3cqb9-odin-nougat-7-0-firmware-t3601427). Able to roll back, but that did not work, So used Verizon update tool to update back to latest firmware, now it works fine. Give a try and see if this helps.
Click to expand...
Click to collapse
Can you explain more info? what version where you on before rolling back, im having serious connections issues since upgrading to android 7 and that 6.01 rollback looks interesting, my service worked just perfect on 6, when i upgraded to 7 my phone became unusable and wouldn't receive calls or texts unless i connect to the network every 15min with a call to my vmail. weird i know

Jio sim "mobile network not available"

Hello guys,
I am facing a real big issue after updating to the stable android pie release on my poco f1
I am using a jio sim. The incoming calls are not shown on the phone. Whenever a call comes to my number it never shows on the phone the caller will hear the dialer tone as normal
Also when I try to make a call it shows a message mobile network unavailable, mobile data and sms works fine all this time.
When I reboot the phone none of the issues are there for 15 to 20 minutes then it comes back.
There were no issues when i put the sim in the second sim slot but I need to have the same card.
I am really frustrated about this issue, I have missed many important calls as it never showed up on the phone
I cannot find any one else facing this issue. What could be the reason for this ? I hope it's some kind of software bug that can be fixed.
Please help me to fix this guys
Thank you
Factory reset, install the new update 10.1.3.0 from sd card.

Need help, dual SIM (standby) intermittent "no network connection"

Trying to solve a problem for a customer at work, dual SIM standby device (kazam trooper) experiencing problems on one SIM only, when trying to make outbound calls, only works roughly one in ten times. 90% of the time will get "not connected to network" error. Incoming calls are always fine, and inbound.amd outbound texts also working okay. No issues with mobile data. Previously worked fine for outbound calls. Nothing changed, SIMs still I'm same slots. Ran through SIM management and mobile network settings with a fine tooth comb. Unable to find anything obvious.
Out my.depth with dual.sim, please help. Could having mobile data enabled on SIM2 affect SIM1 ability to make calls?
Sometimes new upgraded sim card is a solution. Ask operator for replacement its free of charge.

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
-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
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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