Develop Bugs

[Q] Mobile Network Not Available

Hi. I'll simply explain what happend.
I went by plane. I switch my phone on to airplane mode, but when I switch it back phone can't connect to my home network.
It detected networks and can connect to the internet but I can't make any call or recive it (the same with SMS).
It show Me the error message - Mobile Network Not Available or just simply Call ended after two beeps signal.
Show me yellow triangle on the top notification bar and message - No service, Selected network unavailable
I checked IMEI - it's correct
I used PC Companion tool to Repair My Phone - doesn't help
SIM card work well in other phone
other SIM cards - the same problem - not working (I even tryed SIM card from different country network operator).
Phone has no SIM lock
Back to factory settings doesn't solve the problem.
Any ideas what going on with my phone and how to fix it? Please
Model: D5503
Android version: 4.4.2
Build number: 14.3.A.0.757

So it did work before in your home network?
Or is it an issue with a new phone?
Sounds strange to me... If your SIM works in other phones, it can't be a provider issue.
I can't imagine that it is a software issue since it keeps happening after a factory reset.
If it's the hardware it is a warranty issue...
But maybe somebody has a suggestion for you.

Schlengge -
So it did work before in your home network?
Or is it an issue with a new phone?
Click to expand...
Click to collapse
Well, it's new phone (two months) witch work in my home network before holidays and work in roaming network as well.
I spend hours on google... no effect.
I chat on Sony support. They said it can be manufacture faulty. I'll send it to service on monday if I'll not find any other way to fix it.

Same problem with Sony xperia z5 compact
Illderan said:
Hi. I'll simply explain what happend.
I went by plane. I switch my phone on to airplane mode, but when I switch it back phone can't connect to my home network.
It detected networks and can connect to the internet but I can't make any call or recive it (the same with SMS).
It show Me the error message - Mobile Network Not Available or just simply Call ended after two beeps signal.
Show me yellow triangle on the top notification bar and message - No service, Selected network unavailable
I checked IMEI - it's correct
I used PC Companion tool to Repair My Phone - doesn't help
SIM card work well in other phone
other SIM cards - the same problem - not working (I even tryed SIM card from different country network operator).
Phone has no SIM lock
Back to factory settings doesn't solve the problem.
Any ideas what going on with my phone and how to fix it? Please
Model: D5503
Android version: 4.4.2
Build number: 14.3.A.0.757
Click to expand...
Click to collapse
Hello Schlengge! Can you tell me how could u solve that problem? Because i have the same problem on my new (2 month) sony xperia z5 compact e5803. I have mobile data, but dailing and sms is not working. Hope you could find out the ways to fix it)))

rapatar said:
Hello Schlengge! Can you tell me how could u solve that problem? Because i have the same problem on my new (2 month) sony xperia z5 compact e5803. I have mobile data, but dailing and sms is not working. Hope you could find out the ways to fix it)))
Click to expand...
Click to collapse
I had some unusual problems with an inability to xfer data over the mobile network (as opposed to the WiFi) on my wife's Z1c, after both had been fitted with what seemed to be brand-new sim cards by the local T-Mobile store, and I found that in:
*Settings
*Wireless & Networks: More
*Mobile networks
*Access point names
...that she (somehow) had an access point name of "epic.t-mobile.com" as opposed to my APN of "fast.t-mobile.com"
So, I deleted that, and selected "create default APN", and fixed the problem.
There are other settings in that same menu, such as "preferred network type" that might be messing you up.
She could make calls and send texts with this problem, but had no internet unless she turned on WiFi.
But I cannot imagine what would be re-provisioned by switching airplane mode on and then off.
Perhaps you need to declare your sim card a dead parrot, and get a fresh one from your service provider.
This is pure speculation, I have no evidence or experience, just guessing at things that MIGHT cause such a symptom.

Hi Team,
I have purchsed a brand new Xperia Z1 from a retail store.
I am having problem with mobile network connectivity, its not behaving in normal manners.
Many times it drops network and many times it gets auto switch off in a single day and I need to restart it 2-3 times in a single day to make it work properly.
Many times it happens that its showing full network strength and when somebody calls me it says that this number doesn't exist, this is not a simcard issue as my sim is working perfectly when I use it in any other mobile.
I have already given it to sony service center two times and they use to say that softwer was required to be updated that's why you were having network problem but its not resolved yet.
Its is very costly mobile phone and as of now I can't afford to buy any new phone as I have spent my whole savings to buy this phone.
Can you please help me?
Thanks in advance.

[email protected] said:
Hi Team,
I have purchsed a brand new Xperia Z1 from a retail store.
I am having problem with mobile network connectivity, its not behaving in normal manners.
Many times it drops network and many times it gets auto switch off in a single day and I need to restart it 2-3 times in a single day to make it work properly.
Many times it happens that its showing full network strength and when somebody calls me it says that this number doesn't exist, this is not a simcard issue as my sim is working perfectly when I use it in any other mobile.
I have already given it to sony service center two times and they use to say that softwer was required to be updated that's why you were having network problem but its not resolved yet.
Its is very costly mobile phone and as of now I can't afford to buy any new phone as I have spent my whole savings to buy this phone.
Can you please help me?
Thanks in advance.
Click to expand...
Click to collapse
Solution:
I struggled for 2 days to resolve this. And the solution was so simple. I resolved the issue accidentally.
Besides following all the recommendations (except the hardware part) on different online forums I was exhausted. Doing nothing, I started making a backup of my cell phone with an idle mind. And there I found an option to reset your network. I have Sony Xperia Z3 Dual. You should try this.
Go to Settings -> Back up and Reset
Scroll down
Go to "Network Settings Reset".
Then reset your cellular network. And bingo. It worked for me. I was able to make calls and use my cellphone in normal mode.
Please let me know if it worked for you. I can guide you for some more tricks.

[Q] How to fix Network issue in Mokee release ROM in Redmi 1s

Dear Friends,
Since last 5 days I am using Mokee Release Rom in my redmi 1s,
Before two days i am facing network issue in my sim 2 (in sim 2 not using net).
So what is the best solution for it ? can any one guide me properly.
I tried uninstall rom and again install rom

sa.1985 said:
Dear Friends,
Since last 5 days I am using Mokee Release Rom in my redmi 1s,
Before two days i am facing network issue in my sim 2 (in sim 2 not using net).
So what is the best solution for it ? can any one guide me properly.
I tried uninstall rom and again install rom
Click to expand...
Click to collapse
While i wals on mokee i didnt faced any prob. ...please tell more specifically about your problem..(like low call volume, no signal, no internet bla bla)

unkown rockstar said:
While i wals on mokee i didnt faced any prob. ...please tell more specifically about your problem..(like low call volume, no signal, no internet bla bla)
Click to expand...
Click to collapse
I found an issue read narration below.
Sim 1 - (gsm-wcdma) - Using internet
Sim 2 - gsm - Not using net.
When i proffered Gsm - Wcdma network in sim 1 then Facing Network issue, But when i proffered only Gsm in Sim 1 then not facing any issue of network.
so anyone tell me what's going wrong.

try to flash TheBeast kernel,before you do that you should wipr Cache and divlik then flash a Kernel_Compatibility_Patch_Updated package

sa.1985 said:
I found an issue read narration below.
Sim 1 - (gsm-wcdma) - Using internet
Sim 2 - gsm - Not using net.
When i proffered Gsm - Wcdma network in sim 1 then Facing Network issue, But when i proffered only Gsm in Sim 1 then not facing any issue of network.
so anyone tell me what's going wrong.
Click to expand...
Click to collapse
Have you checked your sim performance in other cell phone? You said network issue so first sort this question if your sim can support 3g in your area(to be precise room) since I used Vodafone and I had issues with 3g but 2g worked fine. I later realised that Vodafone had poor 3g reception in my room.
Check your fone with other sim card which has good coverage in your area.

[Help] Tracfone/WP10/HTC One M8 not working

Hello! This is my first thread.
I've used XDA before for tutorials and such so I thought I would get probably the best help here for my situation. I have an HTC One M8 with Windows Phone 10 (Updated using a tutorial here) and it has been great! Better than 8.1 by a lot. I recently got a Tracfone sim for CDMA (the phone is verizon) and it worked just fine, no problem.
Yesterday, data would not work at all despite the fact that it said Verizon Wireless LTE and showed signs of data working. Anything I did to try and access the internet said "Not connected". I've looked in the sim settings and "IMS Services" says unregistered and "Internet APN" is set to VZWINTERNET. I've tried calling Tracfone support (which was a major waste of time) and tried changing the APN to the other suggested TRACFONE.VZENTP with no luck (it will not activate or use any custom APN). I have tried rebooting, removing and re-inserting the sim card, changing Mode selection to "Global" and "CDMA/LTE", tried other tutorials, other APN settings, all to no luck..
If anyone has had this issue before or knows how to fix it, that would be greatly appreciated. I'm traveling with family and need data to work.

TechEdison said:
Hello! This is my first thread.
I've used XDA before for tutorials and such so I thought I would get probably the best help here for my situation. I have an HTC One M8 with Windows Phone 10 (Updated using a tutorial here) and it has been great! Better than 8.1 by a lot. I recently got a Tracfone sim for CDMA (the phone is verizon) and it worked just fine, no problem.
Yesterday, data would not work at all despite the fact that it said Verizon Wireless LTE and showed signs of data working. Anything I did to try and access the internet said "Not connected". I've looked in the sim settings and "IMS Services" says unregistered and "Internet APN" is set to VZWINTERNET. I've tried calling Tracfone support (which was a major waste of time) and tried changing the APN to the other suggested TRACFONE.VZENTP with no luck (it will not activate or use any custom APN). I have tried rebooting, removing and re-inserting the sim card, changing Mode selection to "Global" and "CDMA/LTE", tried other tutorials, other APN settings, all to no luck..
If anyone has had this issue before or knows how to fix it, that would be greatly appreciated. I'm traveling with family and need data to work.
Click to expand...
Click to collapse
Nobody? No ideas?
Is this in the wrong section?

TechEdison said:
Nobody? No ideas?
Is this in the wrong section?
Click to expand...
Click to collapse
Followup:
Phone appeared to be in a bricked state. I was using it completely normal, then it froze on me. Completely unresponsive to even the power button for a good 30 seconds of holding down. Charge light not showing, doing absolutely nothing.
I ran across this: http://www.pocketables.com/2015/06/htc-one-m9-unresponsive-no-charge-light-wont-power-on.html
Could this issue with the apn and the recent frozen issue be linked? Possible a bad sim card or a hardware issue in htc or win 10?
I've had no luck getting it to start back up and I am in serious need of answers... The phone ran just fine for months.

TechEdison said:
Hello! This is my first thread.
I've used XDA before for tutorials and such so I thought I would get probably the best help here for my situation. I have an HTC One M8 with Windows Phone 10 (Updated using a tutorial here) and it has been great! Better than 8.1 by a lot. I recently got a Tracfone sim for CDMA (the phone is verizon) and it worked just fine, no problem.
Yesterday, data would not work at all despite the fact that it said Verizon Wireless LTE and showed signs of data working. Anything I did to try and access the internet said "Not connected". I've looked in the sim settings and "IMS Services" says unregistered and "Internet APN" is set to VZWINTERNET. I've tried calling Tracfone support (which was a major waste of time) and tried changing the APN to the other suggested TRACFONE.VZENTP with no luck (it will not activate or use any custom APN). I have tried rebooting, removing and re-inserting the sim card, changing Mode selection to "Global" and "CDMA/LTE", tried other tutorials, other APN settings, all to no luck..
If anyone has had this issue before or knows how to fix it, that would be greatly appreciated. I'm traveling with family and need data to work.
Click to expand...
Click to collapse
Tracfone APNs are only compatible with the GSM version.
If you have the CDMA version, first, make sure your device radio is unlocked. Only APNs that support that device radio can be used.
I have an Android version, and I'm not sure if enabling SuperCID could help you, as you'd be able to flash a radio that supports your Tracfone APN.
Sent from my HP ENVY m6 Notebook PC using Tapatalk

Volte settings

Hello everyone.
Being using this phone for a couple of days now,so far iam really enjoying it.However there is not any volte enabling setting under mobile networks nor call settings.Am i missing something?My phone came with global beta and it already received 2 updates..Thanks in advance!

So... Nothing like this...?

No,i found that changing my region from Greece to India this setiing showed up...But its grayed out,my carrier has propably locked this feature to a small number of devices bought from its shops in Greece..Pffff

I ve been using the phone for a week now,anyone facing wifi disconnecting issue?It randomly drops and reconnects,cant figure whats the problem

UMTS/HSDPA/3G not connecting on MIUI 8 for anyone else?

I have an issue with every build I've tried of MIUI 8 (Stable versions), but not with the developer versions of MIUI 9.
The phone will not connect to UMTS/3G networks with either sim. LTE works fine, and there's no GSM where I live so I can't test that.
It will connect for a moment when first booting up the phone, then immediately disconnect and stay disconnected. It can't find 3G networks when searching either.
Again, this doesn't happen on MIUI 9 builds, but I figure this big of a bug, they would never release it as stable. Can anyone else let me know if they've had this problem?

Hello, I`m having same issue, here in this way. In town there are many repeaters. Here is no problem, in germany many 4G-Networks are working in band 20 (800 mhz). In areas, where no 4G/lte is possible, the mi mix2 (china stable miui8 and china dev miui9) the mix2 can not connect to 3G/UMTS. A smartphone Redmi note 4 with this SIMCard connects to 3G/UMTS and gets connection data to HSDPA+. The mi mix icon diasappears and there is a "emergency" Icon. Then the mi mix2 connect only to GSM and after 1-2 minutes get Data to EDGE. But at this place it is possible to connect to 3G. I rebooted the device many times, changes sim to other slot. Tried China dev and stable. Last test with XIAOMI.EU and EPICROM for MIX2 are sad. Same issue
Many MIX2-User have this effect. I have this effect on Sim-Cards from provider Telefonica/O2. I have tried 3 Sim-cards from provider O2. No 3G - Connect.
In germanys-forums the is a hint to define "force 3G-Connects". Some user writes, that they do not have this effect with this definition.
Does have XIAOMI a 3G-Bug with new MIMIX2??

holger1308 said:
Hello, I`m having same issue, here in this way. In town there are many repeaters. Here is no problem, in germany many 4G-Networks are working in band 20 (800 mhz). In areas, where no 4G/lte is possible, the mi mix2 (china stable miui8 and china dev miui9) the mix2 can not connect to 3G/UMTS. A smartphone Redmi note 4 with this SIMCard connects to 3G/UMTS and gets connection data to HSDPA+. The mi mix icon diasappears and there is a "emergency" Icon. Then the mi mix2 connect only to GSM and after 1-2 minutes get Data to EDGE. But at this place it is possible to connect to 3G. I rebooted the device many times, changes sim to other slot. Tried China dev and stable. Last test with XIAOMI.EU and EPICROM for MIX2 are sad. Same issue
Many MIX2-User have this effect. I have this effect on Sim-Cards from provider Telefonica/O2. I have tried 3 Sim-cards from provider O2. No 3G - Connect.
In germanys-forums the is a hint to define "force 3G-Connects". Some user writes, that they do not have this effect with this definition.
Does have XIAOMI a 3G-Bug with new MIMIX2??
Click to expand...
Click to collapse
You can install the Miui9 radio and it fixes it.

duraaraa said:
You can install the Miui9 radio and it fixes it.
Click to expand...
Click to collapse
Which Radio Version and wehre to get? I am on miui9 beta and having same issue with this o2 card... It is very anoying.

el3c said:
Which Radio Version and wehre to get? I am on miui9 beta and having same issue with this o2 card... It is very anoying.
Click to expand...
Click to collapse
If you're on MIUI 9 beta, you already have the radio I'm talking about.

duraaraa said:
If you're on MIUI 9 beta, you already have the radio I'm talking about.
Click to expand...
Click to collapse
okay, it doenst fixed that
The default Setting for this SIM is: LTE/TD-SCDMA/WCDMA... this is almost wrong, because we havent TD-SCDMA in Germany, i ve switched to LTE/UMTS RPL ...this seems to work better with my o2 card.
Sometimes the connection breaks down from LTE or LTE+ to H+ ...but after the break down, i have no data connection. If i activate flight mode and re enable data, i also get H+ but for now with data connecting. This is very frustrating
Also that my Settings to LTE/UMTS are removed after a reboot or i switch to the second sim. Any suggestions to fix it permanent to LTE/UMTS ?

Did anyone tried MI MIX 2 Global - Version?´ Bug exists still there?

I am on 9.1

I set it on LTE/TD-SCDMA/GSM. I live in Germany too and have a O2 card.
GSM is slower than UMTS cause it's older. But it works without problems.
Now I trying with LTE/TD-SCDMA/UMTS. I have to say that I have some problems too.

Targosch said:
Now I trying with LTE/TD-SCDMA/UMTS. I have to say that I have some problems too.
Click to expand...
Click to collapse
we dont have TD-SCDMA in Germany so, this setting is false... TD-SCDMA is a chinese or asian network standard

el3c said:
we dont have TD-SCDMA in Germany so, this setting is false... TD-SCDMA is a chinese or asian network standard
Click to expand...
Click to collapse
Should I take LTE/UMTS?

Targosch said:
Should I take LTE/UMTS?
Click to expand...
Click to collapse
yep, this seems to works best and also breaks down to gsm if there is no other network available... but...
sim 1 + data card : o2
sim 2 as voice card: D1
if i make a call with sim 1 / D1 my first sim as data sim loose the data connection, even it is connected to a lte network...strange thing today i had a conf call over sim2 for about 4 hours, while this time i didnt recieve any mail or whatsapp.
but if i set sim 2 / D1 as data card and make a voice call, this card wont loose data....strange, maybe a o2 issue?
edit: made a test with D1 as data and if make a call with the o2 card, also d1 loose data instant

I have a new (2.nd) MI MIX 2. And: I have the same Problem. O2 is switching vom GSM/EDGE to UMTS an gets no Connect. Then only "EMRGENCY CALLs". And then GSM again. o2 is provider. roaming is on.
With second SIM (Vodafone) there is no problem. Is there a fix for that problem? One member wrote there is a new "radio". Where to find it?
Same SIM (o2) in a REDMI NOTE 4 (LTE Band 20 800 MHZ) is "ok". It is an MI MIX 2 - Problem!
I have the MIUI 9 Global.
MI MIX2 with O2 and no LTE and no 3G/UMTS??? Joke?

holger1308 said:
I have a new (2.nd) MI MIX 2. And: I have the same Problem. O2 is switching vom GSM/EDGE to UMTS an gets no Connect. Then only "EMRGENCY CALLs". And then GSM again. o2 is provider. roaming is on.
With second SIM (Vodafone) there is no problem. Is there a fix for that problem? One member wrote there is a new "radio". Where to find it?
Same SIM (o2) in a REDMI NOTE 4 (LTE Band 20 800 MHZ) is "ok". It is an MI MIX 2 - Problem!
I have the MIUI 9 Global.
MI MIX2 with O2 and no LTE and no 3G/UMTS??? Joke?
Click to expand...
Click to collapse
change network to LTE/UMTS PRL ...then it should work better PRL = prefered roaming list; go to settings -> about phone -> tap several times on the info about internal storage -> the network app will appear, now you can change network settings... until next boot, then you have to set it again
maybe mix 2 has a problem with national roaming?! cause o2 uses national roaming -> their own network and the network from e-plus

Yes, the MIX 2 does have issues with switching to anything other than LTE. Even when it says it switched to H or H+ there is actually no reception at all and it takes a few minutes for it to recover. Really annoying, hopefully the engineers fix this issue as soon as possible. Pretty inexcusable bug for such a device.

Hello, Switching to " LTE/UMTS PRL" has the effect, only UMTS/3G-Connections are possible. No LTE/4G. Provider: German O2.
XIAOMI might have to fix this bug.
Q: Has anyone took a Message to [email protected] ?? http://en.miui.com/forum.php?mod=bugfeedback&fid=5&page=1

holger1308 said:
Hello, Switching to " LTE/UMTS PRL" has the effect, only UMTS/3G-Connections are possible. No LTE/4G. Provider: German O2.
XIAOMI might have to fix this bug.
Q: Has anyone took a Message to [email protected] ?? http://en.miui.com/forum.php?mod=bugfeedback&fid=5&page=1
Click to expand...
Click to collapse
LTE/UMTS PRL fixed that for me totaly ... i dont had any issues since them! I am also getting LTE and LTE-A with o2 and i am travelling a lot due to my job in germany.
i think its also problem with o2 and national roaming. if you search for this problem in google, you will find the same issue reports from other devices within in the o2 network. I did never had the same problems with my other D1 card in the same device.

LTE/UMTS does not work for me.
Since yesterday I use LTE/TD-SCDMA/UMTS and it works fine.
Provider: O2 Germany

It looks like 3G/HSPA doesn't work when roaming (possibly local roaming too). LTE works fine. In the UK I can get internet all the time regardless of connection type. I travelled abroad and only LTE worked using my UK SIM. This also happens on AOSP based ROMs since I'm using Resurrection Remix and still experienced the issue.

Mr_Bartek said:
It looks like 3G/HSPA doesn't work when roaming (possibly local roaming too). LTE works fine. In the UK I can get internet all the time regardless of connection type. I travelled abroad and only LTE worked using my UK SIM. This also happens on AOSP based ROMs since I'm using Resurrection Remix and still experienced the issue.
Click to expand...
Click to collapse
Yes, this is clearly a firmware-level issue. They need to fix their modem.