Database Develop

Loosing network signal

Hi!
After weeks of flawless function my Xperia can not find my carriers phone network.
I have updated the phone to the new ROM but that does not help.
The phone finds the SIM card and asks for the code.
Strangly it can connect to internet through my carrier (Tele2).
But I can not get a connection to the phone network and make a normal phone call.
Is something wrong with the phone?
NO, cause with another carrier (Telenor) everything works pefect.
Then obviously something is wrong with my carrier (Tele2) or the SIM-card.
NO, cause when I put my Tele2 SIM-card in another device (Ipaq 6515) it works perfect.
The Ipaq is not a 3G-phone. Can that have anything to do with it?
I'm getting lost here, all help is appreciated.
(ORIGINAL MESSAGE
Hi!
After weeks of flawless function my Xperia has started to lose it's phone network.
I notice it after I wake my phone up from stand by mode.
It doesn't help to turn the phone option off and on in Comm manager, but it has sometimes helped turning flight mode on and off.
Other times I had to restart the phone.
This happens a couple of times every day, after long times of not using the phone. I have not been able to trigger this problem, so I don't know what causes it or exactly when it happens.
Strangly it can connect to HDSPA while it has lost the phone network.
I have also experienced som freezes when I'm flipping between the panels to much.
All help is appreciated, thanks.

It would be helpful if you could give us more information.
What ROM are you using
Which carrier you have
etc.

mo.ammi said:
It would be helpful if you could give us more information.
What ROM are you using
Which carrier you have
etc.
Click to expand...
Click to collapse
I'm using:
ROM 1.02.936.3
Radioversion 1.06.25.29
The carrier is Swedish Tele2.
In Sweden we have GSM-900 and GSM-1800.
Tele2 also provide me with UMTS and HSDPA.

Today the problem became worse.
Even after repeated soft restarts it refused to find the phone network.
Then I change SIM-card to another carrier and it found the network.
I also tried the SIM-card that's giving me problems in another device. Works fine.
So both SIM-cards works. I'm now gonna go with the new carrier during the day to see if the problem come back.
If anyone have any ideas, please help.

krion said:
Today the problem became worse.
Even after repeated soft restarts it refused to find the phone network.
Then I change SIM-card to another carrier and it found the network.
I also tried the SIM-card that's giving me problems in another device. Works fine.
So both SIM-cards works. I'm now gonna go with the new carrier during the day to see if the problem come back.
If anyone have any ideas, please help.
Click to expand...
Click to collapse
All I can say that Xperia sometimes looks for the signal a bit longer it should IMO,
but I also know that carriers have many many problems usually and they're also often responsible for signal drops in some places too.
I know that 'cos I was talking to my carrier many times about it and learned something about it...

have u tried hard resetting the phone or re-installing the software? ..
if u run the sony update software it will give u the option to re-install your phones software - not sure if that has the same effect as a hard reset ..
probably worth trying

Amanox said:
have u tried hard resetting the phone or re-installing the software? ..
if u run the sony update software it will give u the option to re-install your phones software - not sure if that has the same effect as a hard reset ..
probably worth trying
Click to expand...
Click to collapse
Thanks for answering, I have now done a total reinstall and updated the phone to the newest R2... ROM.
The problem remains.
The phone finds the SIM card and asks for the code.
It can connect to internet through my carrier (Tele2).
But I can not get a connection to the phone network and make a normal phone call.
Is something wrong with the phone?
NO, cause with another carrier (Telenor) everything works pefect.
Then obviously something is wrong with my carrier (Tele2) or the SIM-card.
NO, cause when I put my Tele2 SIM-card in another device (Ipaq 6515) it works perfect.
I'm getting lost here, more ideas is appreciated. Tomorrow I will call Tele2 support.

Have you tried disabling 3G/HSDPA?
Chance that you have very poor 3G on your phone, whilst the IPAC is picking up ok 2G.

artesea said:
Have you tried disabling 3G/HSDPA?
Chance that you have very poor 3G on your phone, whilst the IPAC is picking up ok 2G.
Click to expand...
Click to collapse
Thanks for replying.
I disabled HSDPA/HSUPA in the advanced network menu. But it didn't help.
I also tried to choose GSM only in the phone seetings menue. But I could not even change the setting. Just got an error message about not being able to change the network (or something similar).
Is there any other setting that might be worth trying?

krion said:
Thanks for replying.
I disabled HSDPA/HSUPA in the advanced network menu. But it didn't help.
I also tried to choose GSM only in the phone seetings menue. But I could not even change the setting. Just got an error message about not being able to change the network (or something similar).
Is there any other setting that might be worth trying?
Click to expand...
Click to collapse
Having worked for several phone companies a few years at customer service I know what the procedure is.
-First thing they do is ask you to do a "crosstest", try your SIM in another phone and see if that works.
-You'll tell them that you did that and everything works fine when you use another phone.
-They'll automatically conclude that there's something wrong with your phone (correctly)
-They'll ask you if you could do a hard reset ( You did that too)
-Then maybe they'll try and reset the network (which almost never works)
Basically they'll have no other choice then for you to return it and have them look at the problem / replace your phone.
I don't think we here can help you with your problem
Good luck and keep us posted

Get a new SIM card. I've seen problems like this before, and an updated SIM card solved it.
The best way would be to test your SIM card in a similar phone, the ipaq not being close because it's not even 3G.

maedox said:
Get a new SIM card. I've seen problems like this before, and an updated SIM card solved it.
The best way would be to test your SIM card in a similar phone, the ipaq not being close because it's not even 3G.
Click to expand...
Click to collapse
I'm so confused right now.
Got my new sim card today, problem remains.
I call the carrier support and after they've looked the IMEI-number up they say that the phone is barred by an external operator. They won't tell me the reason and by what operator.
So I call the other carriers support and after they've done a IMEI-search they say that the phone is not locked in any way, by them or any other operator. After have been talking to Xperia support they come to the same conclusion. The phone is not locked but agree to that something is wrong, with phone or carriers, and they want me to try with a third carrier.

Final
I've handed in my phone to the seller and got another one back instead.
The end

Exact same problem
Howdy folks,
I have the exact same problem: My Xperia has worked fine for a month. Suddenly I can't register with Tele2 network (tried another Tele2 card as well that didn't work) for calling but have access to data channel so I can surf. Got told by the Tele2 support that my phone was fu**ed up. Got pissed off. Tried a sim for another provider (Telenor) that worked. Called the Tele2 support again. They noticed that I have an old (2g) sim, so they will send a new (3g) card to test if that fixes this mess. It should arrive late this week or early the next. Can't wait...
I'll keep you posted in this thread (or, if I should instead have made a new thread, a moderator may spank me and I will do better).
/Swedish Dave

Nope, new sim-card didn't fix it. But I have found at least one other xperia-user with this problem...

bad GSM signal
I have a X1
rom 1.03.931.10
radio 1.10.25.18
protocol version 52.56.25.29W
and since from the start I have bad GSM signal I have like 1-2 lines onli and it go up to 5line but onli from time to time (and then it drops again to 1-2line or none but If Itray to call is working or I get called but I can berly hear them bicose of the bad signal) on O2 network and in T-mobile is the same no mather wher I'm in town or outside of town; I'm in UK
is the phone damaged?? or...
sry for my bad english

My phone does the same thing
My x1 has had no problem with phone function or network. However, from the last week, the signal began to be lost sometimes, and the machine turned off automatically. and finally today, there is no signal at all.
MY SIM card works with other phones, so, I thought it might be software problem, and hard reseted with new rom. However, still no signal. It keeps looking. Does anyone have the same problem, and hopefully, solution?

I´m using my X1i with Tele2 as my service provider,but i don´t have any problems with signalstrength.. Works just fine..

speederTM said:
I have a X1
rom 1.03.931.10
radio 1.10.25.18
protocol version 52.56.25.29W
and since from the start I have bad GSM signal I have like 1-2 lines onli and it go up to 5line but onli from time to time (and then it drops again to 1-2line or none but If Itray to call is working or I get called but I can berly hear them bicose of the bad signal) on O2 network and in T-mobile is the same no mather wher I'm in town or outside of town; I'm in UK
is the phone damaged?? or...
sry for my bad english
Click to expand...
Click to collapse
I know I should've introdouced myself first, and that this is a strange first post, but:
HOLY SMOKES!!!
Xperia has FIVE reception bars????!!!!!
I always thought that 3 is the max value, since it only happened once that it went up to three bars, rest of the time it's maximum 2, usually 1.
I am also on Tele2 carrier, in Sweden that is, and since yesterday, I have no reception AT ALL.
Nothing.
Tried turning off 3G(or whatever it's called), nothing happens.
Tested with 3 other cards (one Tele2, one Telenor, one Telia) - all seem to be working okay. Except that the Tele2 one has slightly lower reception than the others.
Tested with 3 other phones as well - iPhone 3GS, Nokia 5800 Xpress Music, HTC Desire. All of them worked perfectly. Full coverage on that super-fast network thingy(the 3G symbol on iPhone).
Internet is just flowing on other phones - but Xperia is just falling behind in the most important section - reception.
Calls get dropped (2/3 of the calls), I must send same message at least 3 times in order to get it sent, Internet is crappy - if there's any at all.
Any kind of guidance is mostly appreciated.
P.S. A bit of those numbers which seem to be important:
Microsoft Windows MobileR 6.1 Professional
CE-OS 5.2.19608 (Build 19608.1.2.60)
ROM-version: 1.05.936.9
ROM-date: 04/19/09
Radioversion: 1.14.25.55
Protocol version: 1.0.11842.32680

Since all of you seem to have problems with one and the same carrier (Tele2) why don't you simply switch to another one? I once had a problem that was very alike the one described here and after several unsuccessful attempts of the carrier to fix it I simply switched to another one and all my problems were gone.

Unlock issue with UK i9305 - won't work with Three (3) network sim!

I'll try and keep this breif but getting pretty frustrated with this...
I bought this handset sim free from T-Mobile UK. It was brand new and sealed. When inserting my Three(3) sim it would say "invalid sim" - which was expected as it was locked to T-Mobile. I paid a third party UK company called mobileunlocked.co.uk who have a very good reputation and lots of good reviews for an unlock code so I could use it with a Three (3) UK 3G Sim card. I received the unlock code and an un-freeze code and used both several times, resulting in "unsuccessful". Thinking it was a bad code, I paid ANOTHER unlocking company off ebay (again, reputable) and was supplied with the same codes and the same results but a slightly different method which involved entering * and # keys before the codes in the code box. This resulted in a popup saying "Network control code is blocked".
Following this, I tried the *#197328640# method to access the hidden menus as detailed in this thread http://forum.xda-developers.com/showthread.php?t=2014982 (this has been proven to work with Note II, Galaxy SIII and Galaxy SIII LTE).
I followed that guide to the letter and restarted the phone. At first, I had hope as there was no sim lock code entry box, however I waited and waited and waited and the phone did not pick up my Three (3) signal, despite it no longer saying "invalid sim".
Basically, it just shows several bars but does not pick a Three(3) signal or any date. I have tried manually selecting the network and manually entering APN settings, but I get the same result. When I try connecting manually it just says "Cannot register on network".
-I have tried using this sim card in other phones, it works OK!
-I have tried using other network sim cards (Orange, T-Mobile, EE, Vodafone) and they all work.
-I have tried using a different Three(3) sim in this phone and it still doesn't work.
I can't return it to the T-Mobile store as the warranty is invalid as I have unlocked it (or so I think!). Can anyone help? I know three(3) sims are compatible with this phone as others on this forum have stated they are using Three (3) sims in unlocked i9305s.
Any idea why my unlocking codes that were valid wouldn't work and why it said "Network control code is blocked"?
Any idea why my Three(3) micro sims won't work but other networks do despite this phone being compatible with three (3) sims?
Help!

It doesn't appear that 3 UK has any publicly available LTE network at this time, but that they are rolling one out. Perhaps it is physically available and being picked up by your phone, except 3 isn't allowing just any sim card to register on that network at this time? Try disabling LTE and attempting to connect again.

Rekoil said:
It doesn't appear that 3 UK has any publicly available LTE network at this time, but that they are rolling one out. Perhaps it is physically available and being picked up by your phone, except 3 isn't allowing just any sim card to register on that network at this time? Try disabling LTE and attempting to connect again.
Click to expand...
Click to collapse
I know I won't be able to get LTE as Three (3) aren't offering LTE until Q3. I am perfectly happy just using 3G. I have tried disabling LTE and using 3G only and the same things happen.
I have tried 2 different Three (3) micro sims in it and it still won't register on the network. I know Three(3) sims work in the i9305 as others have unlocked their's and used Three (3) sims.
It's either something wrong with the unlock, something wrong with the hardware or something isn't enabled/disabled. Like I said I've tried automatically connecting and manually entering APNs and still NOTHING.
Frustrating having spent over £450 on a brand new handset which I can't return as warranty is invalidated through "unlocking" (which hasn't unlocked it fully!)

bounce08 said:
I know I won't be able to get LTE as Three (3) aren't offering LTE until Q3. I am perfectly happy just using 3G. I have tried disabling LTE and using 3G only and the same things happen.
I have tried 2 different Three (3) micro sims in it and it still won't register on the network. I know Three(3) sims work in the i9305 as others have unlocked their's and used Three (3) sims.
It's either something wrong with the unlock, something wrong with the hardware or something isn't enabled/disabled. Like I said I've tried automatically connecting and manually entering APNs and still NOTHING.
Frustrating having spent over £450 on a brand new handset which I can't return as warranty is invalidated through "unlocking" (which hasn't unlocked it fully!)
Click to expand...
Click to collapse
Well you did purchase a phone which wasn't intended for use on your network, just saying

Rekoil said:
Well you did purchase a phone which wasn't intended for use on your network, just saying
Click to expand...
Click to collapse
Shouldn't be a problem to be honest. Have you tried calling three to say that you're using the i9305? I love three and their unlimited data plans I plan to do this once samsung/EE unlock my phone.

bounce08 said:
I'll try and keep this breif but getting pretty frustrated with this...
I bought this handset sim free from T-Mobile UK. It was brand new and sealed. When inserting my Three(3) sim it would say "invalid sim" - which was expected as it was locked to T-Mobile. I paid a third party UK company called mobileunlocked.co.uk who have a very good reputation and lots of good reviews for an unlock code so I could use it with a Three (3) UK 3G Sim card. I received the unlock code and an un-freeze code and used both several times, resulting in "unsuccessful". Thinking it was a bad code, I paid ANOTHER unlocking company off ebay (again, reputable) and was supplied with the same codes and the same results but a slightly different method which involved entering * and # keys before the codes in the code box. This resulted in a popup saying "Network control code is blocked".
Following this, I tried the *#197328640# method to access the hidden menus as detailed in this thread http://forum.xda-developers.com/showthread.php?t=2014982 (this has been proven to work with Note II, Galaxy SIII and Galaxy SIII LTE).
I followed that guide to the letter and restarted the phone. At first, I had hope as there was no sim lock code entry box, however I waited and waited and waited and the phone did not pick up my Three (3) signal, despite it no longer saying "invalid sim".
Basically, it just shows several bars but does not pick a Three(3) signal or any date. I have tried manually selecting the network and manually entering APN settings, but I get the same result. When I try connecting manually it just says "Cannot register on network".
-I have tried using this sim card in other phones, it works OK!
-I have tried using other network sim cards (Orange, T-Mobile, EE, Vodafone) and they all work.
-I have tried using a different Three(3) sim in this phone and it still doesn't work.
I can't return it to the T-Mobile store as the warranty is invalid as I have unlocked it (or so I think!). Can anyone help? I know three(3) sims are compatible with this phone as others on this forum have stated they are using Three (3) sims in unlocked i9305s.
Any idea why my unlocking codes that were valid wouldn't work and why it said "Network control code is blocked"?
Any idea why my Three(3) micro sims won't work but other networks do despite this phone being compatible with three (3) sims?
Help!
Click to expand...
Click to collapse
Hi,
I am in the same boat, I actually got the S3 LTE from EE in December (GOT IT FOR 359).. Initially, it worked with three after unlocking via xda..*#197328640# method ..But it stopped working or it was working intermittently...
So tried rining three..they said..ohhh our network is best and our (three) sims will work only in three mobiles..
Anyway I tried all other methods..re-set..factory etc..
Finally sent the mobile to Samsung...
after 10days, I got it back...Now as soon as I insert three sim..it says invalid sim..So tried *#197328640# method again..unfortunately..i can't do that as (the last option INITIALIZE...) does not show up now..
Anyway managed to get unlock code from ebay...NO USE..it shows the same problem as yours.."network control is blocked"...
Donno what to do??? might ring samsung again tomorrow...
Have you tried speaking to T mobile about getting it unlocked????
If you find any answers..pls let me know
Thanks in advance

I'm having the same problem. Any updated on how things went with T-mobile or does anyone have a fix?

Should I cancel my order?!
I just bought the S3 LTE i9305. I purchased it as an upgrade and its arriving tomorrow. I wanted to give my sim to my mother and keep the phone to use with Three's DC-HSPA+ which will work on the S3 LTE. So can I unlock it or will it be facing the same problems as mentioned in the thread. Sorry for not helping out, ama noob and GOOD LUCK! :good:

I recently put in an unlocking request at EE. They get a samsung unlocking code directly from Samsung. So I'll give this method a go. I am getting my Sim Card in soon from three. Decided to jump the boat on to the one plan @ £25 a month. =) EE's london signal is pants. =(
Sent from my GT-I9305 using Tapatalk 2

bleepsake said:
I recently put in an unlocking request at EE. They get a samsung unlocking code directly from Samsung. So I'll give this method a go. I am getting my Sim Card in soon from three. Decided to jump the boat on to the one plan @ £25 a month. =) EE's london signal is pants. =(
Sent from my GT-I9305 using Tapatalk 2
Click to expand...
Click to collapse
I tried to get an unlock code from T-mobile, they said that Samsung wouldn't release it for another six months, since it's a new phone. Even though we've been with them for donkeys years!

Right today, I recieved my sim. I'm glad to say everything works. I'm getting around 8mbps down and 1mbps up in West London.
If yours doesnt work then it probably is a damaged sim.
Tell T-Mobile you want to speak to someone that knows what they are talking about. It takes up to 60 days for direct Samsung unlock code. You might have to pay a tenner but worth it jn my perspective. I'm glad I have unlimited data again. It feels like freedom. No Joke. o2 Used to do an unlimited tariff and I loved it. There reasoning was to improve their network but instead it made it worse. I know Three arent known for their calls but they certainly know what customers want and thats data.
PS how do I know if im getting the optimum speed?
Sent from my GT-I9305 using Tapatalk 2

Try this
http://forum.xda-developers.com/showthread.php?t=1335548

I think you have updated the software via OTA.. you need to downgrade to I9305XXALI5_I9305EVRALI5_I9305BVALI5 (this is for people who have got phone from T-mobile). Download from Sammobile.com, flash via odin (this wont affect ur warranty as this is stock firmware and doesnt increase the binary counter).
once you are sure that you have the above software, then follow the instructions on the below in first post in the mentioned link, again no rooting involved:
http://forum.xda-developers.com/showthread.php?t=2014982
People have confirmed that after unlocking via this method if you go ahead with OTA, you will still have the phone unlocked.
I have followed the above procedure but havent updated the firware and have not used the phone yet. But its unlocked and I have tried using Three UK sim, it works,
Do let me know how it goes.

kams19 said:
I think you have updated the software via OTA.. you need to downgrade to I9305XXALI5_I9305EVRALI5_I9305BVALI5 (this is for people who have got phone from T-mobile). Download from Sammobile.com, flash via odin (this wont affect ur warranty as this is stock firmware and doesnt increase the binary counter).
once you are sure that you have the above software, then follow the instructions on the below in first post in the mentioned link, again no rooting involved:
http://forum.xda-developers.com/showthread.php?t=2014982
People have confirmed that after unlocking via this method if you go ahead with OTA, you will still have the phone unlocked.
I have followed the above procedure but havent updated the firware and have not used the phone yet. But its unlocked and I have tried using Three UK sim, it works,
Do let me know how it goes.
Click to expand...
Click to collapse
On the site, it says it's for EE, is that still ok? I know T-mobile, Orange and EE, are all pretty much the same thing now, but I just want to be sure. I wouldn't want to put something that starts putting EE logos all over on boot up etc. The one that came with the phone doesn't mention anything about T-mobile on boot up.

It won't EE is unbranded

Thanks... I've zapped it with 4.1.1, used that trick, and then allowed the 4.1.2 update + plus another update of some sort through OTA, and I'm now using O2 happily! Cheers!

Phone arrived Friday on Orange EE with 4.1.2. wouldn't accept 3uk sim.
Tried the *#...640# trick but menu options not present.
Reverted firmware down to 4.1.1. Li5 Uk EE and voila menus present.
Tried 3uk sim and works fine.
Flashed latest Wanamlite rom and still unlocked on 3uk.
Getting a reliable 15.5 Mbs down on dc HSDPA at home despite only having 1 bar signal, on three One plan unlimited for £15/mth.

NGbod said:
Phone arrived Friday on Orange EE with 4.1.2. wouldn't accept 3uk sim.
Tried the *#...640# trick but menu options not present.
Reverted firmware down to 4.1.1. Li5 Uk EE and voila menus present.
Tried 3uk sim and works fine.
Flashed latest Wanamlite rom and still unlocked on 3uk.
Getting a reliable 15.5 Mbs down on dc HSDPA at home despite only having 1 bar signal, on three One plan unlimited for £15/mth.
Click to expand...
Click to collapse
Great news!

[Q] Dual sim issues

I have one sim that I wish to use for phones / text messages, and one that I wish to use for mobile data.
If I put either sim in on its own, it works fine.
If I put both in together, and set them so they are both on, the one that I wish to use for phone calls and texts does not register on its network (which is Three in the UK)
I am not sure what to do. Can the phone company have set it so it doesn't work in a dual sim setting?
Or have I just failed to understand what dual sim is?
Any help much appreciated!

stoichkov88 said:
I have one sim that I wish to use for phones / text messages, and one that I wish to use for mobile data.
If I put either sim in on its own, it works fine.
If I put both in together, and set them so they are both on, the one that I wish to use for phone calls and texts does not register on its network (which is Three in the UK)
I am not sure what to do. Can the phone company have set it so it doesn't work in a dual sim setting?
Or have I just failed to understand what dual sim is?
Any help much appreciated!
Click to expand...
Click to collapse
Try interchanging the SIM, I mean just enter the right one on the left and the left one on the right. What you are saying shouldn't happen.
If possible try another 2 SIM to see if the problem is with the SIM or the phone.

pleomaxell said:
Try interchanging the SIM, I mean just enter the right one on the left and the left one on the right. What you are saying shouldn't happen.
If possible try another 2 SIM to see if the problem is with the SIM or the phone.
Click to expand...
Click to collapse
OK thanks. I have tried it with another 2 sims and it works fine. So that means it's a faulty sim?
Is it possible the network won't allow dual sim, or should I just request a replacement?
Thanks

stoichkov88 said:
OK thanks. I have tried it with another 2 sims and it works fine. So that means it's a faulty sim?
Is it possible the network won't allow dual sim, or should I just request a replacement?
Thanks
Click to expand...
Click to collapse
Before requesting a replacement just ask the network operator of that particular SIM that if they disallow Dual-SIM or not. If they don't allow using their SIM on a dula-sim mobile asking for a replacement would be pointless.

I am using 3 (UK) and Vodafone, no issues, so likely the sim
Sent from my XT1068 using XDA Free mobile app

Dual Sim - standby or full active?

Hello, i have P8 and the sim cards working "active" together.
i want to buy the P10, and i want to ask if the sim cards working the same (Dual Sim Full Active) like the old P8.
Please help me.

Davidskywind said:
Dual Standy my friend.
And ony one SIM have 4G service, one SIM in 2G.
Click to expand...
Click to collapse
Thats incorrect, can be 2G/3G/4G, the other sim is 2G/3G.
To ther op's, for all I know, the P7 and 8 is full active, you can use sim one to call sim two and you phone will start to ring, thats the same for sim one on call, whiles data can be used to surf the internet on sim two. This feature has been removed for all released afterwards.

kms108 said:
Thats incorrect, can be 2G/3G/4G, the other sim is 2G/3G.
To ther op's, for all I know, the P7 and 8 is full active, you can use sim one to call sim two and you phone will start to ring, thats the same for sim one on call, whiles data can be used to surf the internet on sim two. This feature has been removed for all released afterwards.
Click to expand...
Click to collapse
Thanks Bro, if the 2g/3g sim received a call .. the internet stopped working?
Example: Is the truecaller worked to identify a number call me on 2g/3g sim card?

mojeersalman said:
Thanks Bro, if the 2g/3g sim received a call .. the internet stopped working?
Example: Is the truecaller worked to identify a number call me on 2g/3g sim card?
Click to expand...
Click to collapse
Lets just say that when sim 1 is active (on a call), sim 2 is disabled.

kms108 said:
Lets just say that when sim 1 is active (on a call), sim 2 is disabled.
Click to expand...
Click to collapse
Oh, this is very bad

mojeersalman said:
Oh, this is very bad
Click to expand...
Click to collapse
Nothing can be done about it, of all the phone only Huawei P7 and 8, from what I know has this feature, all the newer Huawei has removed the feature, and other manufacture thinks it's not worth having it.

kms108 said:
Nothing can be done about it, of all the phone only Huawei P7 and 8, from what I know has this feature, all the newer Huawei has removed the feature, and other manufacture thinks it's not worth having it.
Click to expand...
Click to collapse
P9 PLUS WORKING TWO SIM CARD SAME TIME.

M.KK said:
P9 PLUS WORKING TWO SIM CARD SAME TIME.
Click to expand...
Click to collapse
You got to give more details, majority of the phones posted here work with two sims at the same time.

kms108 said:
You got to give more details, majority of the phones posted here work with two sims at the same time.
Click to expand...
Click to collapse
https://forum.xda-developers.com/p9-plus/help/p9-plus-t3765257

Mi 9 - Android Q Mobile Network isn't available

Hi,
I just bought a Mi 9 for my gf as Birthday gift and have a big problem with it.
We use her Simcard from her further phone, which works there without issues, but the Mi 9 just let her use Data on the simcard (internet). No calls or texts in-/ outbound are possible. It always shows that no mobile network is available.
I already readded all APNs (Internet, LTE, GPRS) and tried a couple different network settings (*#*#4636#*#*). I'm not sure why this issue appears and searched allover the internet. Seems like noone else have this problem.
Version is 11.0.2.0(QFAMIXM) with locked bootloader. Could it be that seller flashed something wrong, modem type or whatever? Carrier lock wouldn't let us use the actual sim right? My own sim as well just work with data so it need to be an issue with the phone.
Thanks in advance
Chris

Noone have any idea what the issue could be?

This seems like an operator related issue and probably has nothing to do with the Mi9. Try operator related forums for more help. The only thing that comes to mind is to get a new sim from the operator.

ChrisMNL said:
Noone have any idea what the issue could be?
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Question:
Does mi9 recognize the SIM Card? Does mi9 ASK for your SIM Card PIN? Or does mi9 say 'no SIM Card installed'?

Hi,
Sim is recognized and contacts shown. Sim pin is deactivated so the Phone don't ask.
Mobile Network is shown and active and data/ internet works. Its just the GPRS funtions (Text, Calls) which don't work. When I try to call I get the "Mobile Network isn't available" message and texts don't sent.
Thanks

This seems like an operator related issue and probably has nothing to do with the Mi9. Try operator related forums for more help. The only thing that comes to mind is to get a new sim from the operator.
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The Sim works fine in another phone and my sim which works as well, shows the same errors in the Mi 9. So it must be an phone issue.

ChrisMNL said:
The Sim works fine in another phone and my sim which works as well, shows the same errors in the Mi 9. So it must be an phone issue.
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What operator do you use? What operators are the respective cards you have tried in the Mi9? Did you buy the phone from a private person and not new in a sealed package? In this case contact the seller.

ChrisMNL said:
The Sim works fine in another phone and my sim which works as well, shows the same errors in the Mi 9. So it must be an phone issue.
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Do you have 2 simcards installed?
You also might try to reset the modems, howto you can find when searching the forum

Just 1 sim installed. 2nd slot shows the same issues. Will check the forum for modem reset thanks.

Hi,
Weirdly the phone seem to have a Carrier Lock. My gf uses SMART Prepaid here on the Philippines and as said just mobile data was working. Yesterday she switched the SIM for testing to Globe and with this SIM everything works. 4G is available and calls/ texts work as they should.
I'm still confused about this. If the Phone would be carrier locked, should another Carrier SIM not be functional at all? I don't get why Data connections are working then.
For now the solution is to get another SIM. Probably let it unlock in a store.
Regards
Chris