About a notification stating no emergency calling - Xiaomi Mi A1 Questions & Answers

My Mi A1 is showing this notification when I inserted Bsnl sim in my A1 , no emergency calling - temporarily not offered by your network in your location

varaprasad1947 said:
My Mi A1 is showing this notification when I inserted Bsnl sim in my A1 , no emergency calling - temporarily not offered by your network in your location
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I am not a MI user but i am running oreo on my Moto g plus. Even i have the same issue. I think it is the BSNL SIM that's misbehaving.

Dont think this is ROM's issue, the SIM card may have some issues (or may even be imcompatible?), try dialing *#*#4636#*#* in dialer to get information about the modem and SIM card. Maybe you'll notice something strange.

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Dual Sim not working. Only one sim works at a time

After making some changes in service menu, i am unable to use dual sim functionality. I can use only one sim slot at a time. The other one shows no network available. Regardless of which sim slot i use. In service menu sim slot 1 can be set to any preferred network but sim slot 2 is stuck in gsm only mode. Manually searched for network but no network available. Flashed latest oos 3.1.0,still the same issue. Can anyone help me with this.
Thanks in advance
Just restore whatever change you did in service menu and you should be back, you should not have played around in there from the beginning ?
pitrus- said:
Just restore whatever change you did in service menu and you should be back, you should not have played around in there from the beginning ?
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Service menu doesn't have an option to reset to default and i don't remember exactly what changes i made. Yea i shouldn't have touched the service menu. If there's any thing else that can be done. Thanks for the quick reply
I think you changed radios to be only 3g/4g and your carriers uses the same band
Sent from my ONE A2005 using Tapatalk
fburgos said:
I think you changed radios to be only 3g/4g and your carriers uses the same band
Sent from my ONE A2005 using Tapatalk
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I'm not sure what changes I've made but yes both providers use band 40 2300 mhz for lte. I've tried changing one of the sim to use only 2g so that both sims are on different band but still same issue.
If you are in an area where carrier uses exclusively LTE that's the problem, opt radio is dual standby it alternate between two signals in any of the combinations 2g-3g/lte but not 3g-3g or lte-lte
Sent from my ONE A2005 using Tapatalk
fburgos said:
If you are in an area where carrier uses exclusively LTE that's the problem, opt radio is dual standby it alternate between two signals in any of the combinations 2g-3g/lte but not 3g-3g or lte-lte
Sent from my ONE A2005 using Tapatalk
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My phone was working fine few days ago. I messed up something in service menu, after that the problem started. I have set one of the sim to use 2g manually, still i can't find any signal and both carriers use 3 different bands.
Have you found any solution i am facing exact same issue after changing network band. please help
fburgos said:
I think you changed radios to be only 3g/4g and your carriers uses the same band
Sent from my ONE A2005 using Tapatalk
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How to reset radio band i am facing same problem. I tried factory reset, restore old twrp EFS backup, clean flashing stock rom, flashing cm14.1. But problem is still there please help.
Finally......
Hello guys i solved this issue by flashing oxygen os 2.2.0 now my both sim are working fine.
Just flash oxygen os 2.2.0 which has dual SIM preference selection fix.
shan1990 said:
Finally......
Hello guys i solved this issue by flashing oxygen os 2.2.0 now my both sim are working fine.
Just flash oxygen os 2.2.0 which has dual SIM preference selection fix.
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No wifi, no simcards detected...
Can you explain how it makes it work?
Here is a good read about such dual-sim issues (esp. posts #3,4):
https://forums.oneplus.net/threads/dua-sim-detection-problem-only-one-sim-being-detected.430976/
I'm a noob with this stuff, I read that forum and I'm still unclear... Is there a work around or am I screwed? Is it the phone/Software or my sim cards?
Here is the solution
In order to solve the problem go to service menu by dialing *#*#4636#*#* then turn off radio then select radio band 32 when it says successful, restart your phone and the problem will be solved
Say thanks at fb.com/suri131
You can contact for any other issue too
Finally solved the issue
I too faced similar issue and solved it now. I'll share my observations here.
I had 2 4g Sims Airtel and Jio. Jio for data. Both the sim's were working fine , once i went into roaming suddenly after that airtel stopped latching to network. Whatever sim slot i put my airtel sim it's not getting network if in the other slot Jio is there. I tried to use my airtel sim in other phones and it's working fine. I tried putting only airtel sim it's working fine in my OP2. I thought this may be imei problem and checked imei , my OP2 has both imei in it.
So now the fix part , for me 4g sim was working fine so tried fixing the other one in sim slot 1 i.e.. airtel.
*Install and open Shortcut Master(Lite).
*Menu->Search->Type "Engineering" -> Select "EngineerMode" from Search result (package name:com.android.engineeringmode.EngineeringMode) ->Launch.
*Click Network Set
*Click Sim Card Select -> sim 1
*Click Rat mode ->Select GSM only
*Click band mode->Select PGSM 900/1800
Now turn on Airplane mode on /off wait for a minute you should see both network.
Summary: In OP2 one slot will be 4g / other will be GSM 2g... So whichever sim is working for you don't change settings for that sim , play with the other sim for which no network is coming.
Abidbhat said:
Finally solved the issue
I too faced similar issue and solved it now. I'll share my observations here.
I had 2 4g Sims Airtel and Jio. Jio for data. Both the sim's were working fine , once i went into roaming suddenly after that airtel stopped latching to network. Whatever sim slot i put my airtel sim it's not getting network if in the other slot Jio is there. I tried to use my airtel sim in other phones and it's working fine. I tried putting only airtel sim it's working fine in my OP2. I thought this may be imei problem and checked imei , my OP2 has both imei in it.
So now the fix part , for me 4g sim was working fine so tried fixing the other one in sim slot 1 i.e.. airtel.
*Install and open Shortcut Master(Lite).
*Menu->Search->Type "Engineering" -> Select "EngineerMode" from Search result (package name:com.android.engineeringmode.EngineeringMode) ->Launch.
*Click Network Set
*Click Sim Card Select -> sim 1
*Click Rat mode ->Select GSM only
*Click band mode->Select PGSM 900/1800
Now turn on Airplane mode on /off wait for a minute you should see both network.
Summary: In OP2 one slot will be 4g / other will be GSM 2g... So whichever sim is working for you don't change settings for that sim , play with the other sim for which no network is coming.
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it worked instantly
Abidbhat said:
Finally solved the issue
I too faced similar issue and solved it now. I'll share my observations here.
I had 2 4g Sims Airtel and Jio. Jio for data. Both the sim's were working fine , once i went into roaming suddenly after that airtel stopped latching to network. Whatever sim slot i put my airtel sim it's not getting network if in the other slot Jio is there. I tried to use my airtel sim in other phones and it's working fine. I tried putting only airtel sim it's working fine in my OP2. I thought this may be imei problem and checked imei , my OP2 has both imei in it.
So now the fix part , for me 4g sim was working fine so tried fixing the other one in sim slot 1 i.e.. airtel.
*Install and open Shortcut Master(Lite).
*Menu->Search->Type "Engineering" -> Select "EngineerMode" from Search result (package name:com.android.engineeringmode.EngineeringMode) ->Launch.
*Click Network Set
*Click Sim Card Select -> sim 1
*Click Rat mode ->Select GSM only
*Click band mode->Select PGSM 900/1800
Now turn on Airplane mode on /off wait for a minute you should see both network.
Summary: In OP2 one slot will be 4g / other will be GSM 2g... So whichever sim is working for you don't change settings for that sim , play with the other sim for which no network is coming.
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Click to collapse
Hey man. Installed a custom based on android 12 and i'm not sure what happened but only one sim card was working. Used msm tool to go back to oos 12 and now only one sim card shows.
Was going to try your method but the "engineeringmode" does not show up in search.
Any suggestions?

facing network issues On my One Plus Two

Hey guys i have one plus two and its running on oxygen os 3.1.0 i am facing problems on my one plus two i.e first of all i have 2 sim cards one jio 4g n other is vodafone india both sims were running perfectly on my moto g4plus previously now when i have one plus two i got it from my brother so i put jio sim on sim1 it was showing no network and then i put vodafone on sim2 then i didnt got any network unless in disabled my jio card i am getting network on my vodafone but the problem is that after making call network get lost and come back again after 2 seconds and then i can call once and i need to manully search for network on my vodafone sim if it cand find network both sims still work great on moto g4 is it problem with my device only ?
and now i have network on my sim2 vodafone and set to 2g only and wen i enable sim 1 both network get lost and its unable to register on any netwokr on siim 1 and on sim 2 it wont search!
please help me out
sorry for my english!
Jio is not fully supported on this phone, partly due to missing VoLTE support in firmware and partly because of how Jio doesn't support GSM/2G which is the standby mode for the secondary SIM as the phone doesn't support dual 4G mode. In other words, if first SIM is in 4G mode, second is forced to 2G, and this of course causes problems for Jio SIM.

SIM slot connectivity issue Zenfone 3 (ZE552KL)

Hey Guys,
Bought a new zenfone 3 (ZE552KL). Unable to receive a call on SIM slot 1 ( Micro-sd). Caller hears a "Phone is switched off" message. The same SIM however works in the nano SIM slot 2. Called my network operator and got my sim replaced but the caller still gets the same message. Performed a factory reset as suggested by Asus customer care, still no joy. Finally ordered a replacement from Asus for the zenfone 3 ( ZE552KL) and SIM slot 1 still gives me the same problem i.e. the caller getting a " phone is switched off " message.
Anyone else facing problems with the zenfone 3 in terms of sim slots related connectivity?
junaid.mulla said:
Hey Guys,
Bought a new zenfone 3 (ZE552KL). Unable to receive a call on SIM slot 1 ( Micro-sd). Caller hears a "Phone is switched off" message. The same SIM however works in the nano SIM slot 2. Called my network operator and got my sim replaced but the caller still gets the same message. Performed a factory reset as suggested by Asus customer care, still no joy. Finally ordered a replacement from Asus for the zenfone 3 ( ZE552KL) and SIM slot 1 still gives me the same problem i.e. the caller getting a " phone is switched off " message.
Anyone else facing problems with the zenfone 3 in terms of sim slots related connectivity?
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Haven't tried SIM 2 but certainly has no any kind of issue from SIM 1. Call and cellular data works perfectly fine. Have you checked operator vs supported frequency? And also suitable firmware for the country?
sanctitude888 said:
Haven't tried SIM 2 but certainly has no any kind of issue from SIM 1. Call and cellular data works perfectly fine. Have you checked operator vs supported frequency? And also suitable firmware for the country?
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Checked operator against device compatibility on frequencycheck.com and it shows that the device is compatible with all bands.
I have no such issue. Both my sim1/2 work on either 2G/2G, 2G/3G, 3G/2G or 3G/3G modes. No 4G network here.
i have onr question can we get call on both the lines at same time i mean if i am talking on sim 1 can i get call on sim 2 at same time plz rply
Sent from my VIE-L29 using XDA-Developers mobile app

Simultaneous 4G support on both sims?

Does this phone support 4G on both sims simultaneously like HONOR 10?
Yes, it supports simultaneous dual VoLTE.
Does this mean, if i have a volte enabled sim(jio) in sim slot 2, and non-volte sim(airtel) in sim slot 1, and i have data enabled on sim slot 1(airtel), then the sim in sim slot 2 DOES NOT go out of service, and i CAN make calls from it..
The reason i ask this is because, in other smartphones like Mi A1/RN3 , when i have the same above scenario,
the sim in sim slot 2 DOES go out of service, and i CAN'T EVEN make calls from it.
ashjas said:
Does this mean, if i have a volte enabled sim(jio) in sim slot 2, and non-volte sim(airtel) in sim slot 1, and i have data enabled on sim slot 1(airtel), then the sim in sim slot 2 DOES NOT go out of service, and i CAN make calls from it..
The reason i ask this is because, in other smartphones like Mi A1/RN3 , when i have the same above scenario,
the sim in sim slot 2 DOES go out of service, and i CAN'T EVEN make calls from it.
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This phone support TRUE Dual Volte unlike other phones. So yes you can set data inn Airtel and use Jio in second sim simultaneously. You can even use Dual Jio SIM in this phone.
hrishi420 said:
This phone support TRUE Dual Volte unlike other phones. So yes you can set data inn Airtel and use Jio in second sim simultaneously. You can even use Dual Jio SIM in this phone.
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Sir, I am using the Zenfone Max Pro M1, the dual VOLTE is not working, when I am using one SIM for the call the other SIM is going offline, in other words when I am on phone call the Mobile data connection is getting disconnected on the other SIM. Does anyone experiencing the similar issue?
[email protected] said:
Sir, I am using the Zenfone Max Pro M1, the dual VOLTE is not working, when I am using one SIM for the call the other SIM is going offline, in other words when I am on phone call the Mobile data connection is getting disconnected on the other SIM. Does anyone experiencing the similar issue?
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Facing same issue, Asked customer support executive for the same and according to them this is bug and we need to go asus service and ask them to resolve this.
Scenario: Airtel/Cellone on SIM1 and Jio on SIM2
1) Data is set to SIM1 and Jio calling works fine. However, data is 2.5G/3G (SIM Card limitation) hence not sure about dual VOLTE 4G.
2) Data is set to SIM2 (Jio) and working fine. However, as soon as I receive a call on SIM1, mobile internet connectivity is disrupted and I cannot use mobile data while on call. Note that the mobile data itself does not show disconnected (the x mark). The only way to use data during call is wifi.
3) Data is set to SIM2 (Jio) and works fine during call if the call is received on SIM2.
I've had no issues with jio and Vodafone dual volte.
Airtel has no LTE coverage in my zone
Tianhe said:
Scenario: Airtel/Cellone on SIM1 and Jio on SIM2
1) Data is set to SIM1 and Jio calling works fine. However, data is 2.5G/3G (SIM Card limitation) hence not sure about dual VOLTE 4G.
2) Data is set to SIM2 (Jio) and working fine. However, as soon as I receive a call on SIM1, mobile internet connectivity is disrupted and I cannot use mobile data while on call. Note that the mobile data itself does not show disconnected (the x mark). The only way to use data during call is wifi.
3) Data is set to SIM2 (Jio) and works fine during call if the call is received on SIM2.
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I read this on asus website .So , we cant say that it is dual 4g volte.
" Both SIM card slots support 4G LTE network band. But only one SIM card can connect to 4G LTE service at a time."
praveen139 said:
I read this on asus website .So , we cant say that it is dual 4g volte.
" Both SIM card slots support 4G LTE network band. But only one SIM card can connect to 4G LTE service at a time."
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Hmm, it is dual 4G Volte but not dual ACTIVE 4G Volte.

BSNL Network Reception Issue with OnePlus 6T

Guys,
I need help with my network reception issue in OnePlus 6T.
To brief you about its history,
I believe this started from OS Update 9.0.17 where below change-log was introduced,
Re-activated the calling function after the network has been reset.
At present my device is with 10.3.0 OS which is Android 10 based.
In issue description,
1. In some cases I receive network but it will not at all working (like in-out call & SMS). For inbound calls, my device shows out of coverage and for outbound calls it just keep on trying connecting and then get disconnected.
2. In some cases I will not receive network reception itself.
3. Issue reported with BSNL Network only. I tried with 3 different BSNL SIM and issue remain same for all.
4. No other network is affected (irrespective of 2G/3G). I tested with Airtel & Vodafone, where its working with 2G & 3G both.
Troubleshooting steps,
1. Tried flashing device completely (From OS & Recovery Both) - No Solution
2. Tried downgrading OS to 9.0.4 - No Solution
3. Tried selecting 2G network manually - It throws error as selected network is not available.
4. Tried changing Network Reception Scope to GSM/WCDMA only for BSNL Network slot (SIM2) - No Solution
5. Tried using BSNL only in SIM1 slot (keeping SIM2 empty) - No Solution
6. These same SIM Cards (JIO & BSNL) are working fine presently in my another OnePlus 5 device.
7. Tried disabling DSDS (Dual SIM Dual Standby) from *#*#4636#*#* but its not getting deactivated & remained active always.
I verified with Network Cell Info Tool where this BSNL network is showing greyed out (I dont know what does that mean) but I believe its representing internal root cause of this issue.
In app, neighboring cell is also losing connectivity randomly and not steady for BSNL network only.
It seems I've hit the same issue with my OnePlus 6 since the last couple of days. Happened after I did a 'reset network settings'. No solution yet. I have changed to a new BSNL 4G SIM and had factory reset of the phone.
Now the phone is with the service centre.
How did you resolve this issue?

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