Mobile Internet Not Working on O2UK - Xperia Z2 Q&A, Help & Troubleshooting

My recently acquired Xperia Z2 is rooted and flashed with the pre-rooted 23.4.A.1.232 available here. Aside from the problem with the default messaging app that other users of that ROM have experienced it was working OK until last week.
My AirTime provider (O2 - UK) c*cked up recently when I ordered a replacement SIM; they created a new 'phone account and started charging me on it. After several on-line chats they transferred the old number onto the new account and since then Mobile Data doesn't work.
I have jumped through all sorts of hoops with the O2 guru and his final advice is to reset my 'phone - which I am unwilling to do unless I have to. Mobile data works if I put the SIM back into my old 'phone, this one (the Z2) shows signal and I have endlessly reset the APNs and so on - but It just won't authenticate. The Guru says something about the "PAN", which I haven't heard of:
"the phone is unable to reset the PAN settings and APN settings: Thus the Factory Reset needs to be done"​
Any ideas on anything I can zap or poke to cause this to work without having to reset the 'phone and reinstall all my apps and settings?
TIA

Related

[Q] Unlocked Galaxy S2 No Data

Hi guys,
I am on the Fido network.
I purchased the Galaxy S2 I9100 from Bell Mobility.
I unlocked the phone using cellunlocker.net.
Everything worked great once the phone was unlocked (data, voice, text, mms, etc).
Once I updated the APN and selected my network operator I noticed my date stamp on incoming texts was off by a few hours. I corrected this by calling my service provider who reset my SIM.
This is where the more serious problem started, the date stamp on the texts was corrected although I lost my data connection.
Another thing I wanted to mention was when restarting the S2, the data network mode (when holding the power button) automatically goes into "deactivated". I activate it right away although this still has no effect.
Can anyone help? The phone worked for just under 2 weeks with data, voice, etc. Now nothing........
=(
AndroidFS2 said:
Hi guys,
I am on the Fido network.
I purchased the Galaxy S2 I9100 from Bell Mobility.
I unlocked the phone using cellunlocker.net.
Everything worked great once the phone was unlocked (data, voice, text, mms, etc).
Once I updated the APN and selected my network operator I noticed my date stamp on incoming texts was off by a few hours. I corrected this by calling my service provider who reset my SIM.
This is where the more serious problem started, the date stamp on the texts was corrected although I lost my data connection.
Another thing I wanted to mention was when restarting the S2, the data network mode (when holding the power button) automatically goes into "deactivated". I activate it right away although this still has no effect.
Can anyone help? The phone worked for just under 2 weeks with data, voice, etc. Now nothing........
=(
Click to expand...
Click to collapse
Go to mobile network settings - access point name. I'm guessing that there is no APN settings there. Google APN settings for your service provider or ring them and ask them. This should sort out your data connection
Hi,
All APN settings are correct, they were working prior to calling the service provider for a SIM reset. I rechecked them 10 million times to ensure all is well.
Using my wireless for now and even factory reset my phone but nothing.
Try deleting your apns and reconfigure them!
Sent from my GT-I9100 using Tapatalk
Just finished, I deleted my APN and created a new one. Still nothing, even when I reset to default. Also registered it on my network operator. This is very puzzling for me... I appreciate your response as I thought it was a great idea and was sure it would have worked! =(
Maybe try a buddies Fido sim to see if it helps.
Sent from my GT-I9100 using Tapatalk
AndroidFS2 said:
Just finished, I deleted my APN and created a new one. Still nothing, even when I reset to default. Also registered it on my network operator. This is very puzzling for me... I appreciate your response as I thought it was a great idea and was sure it would have worked! =(
Click to expand...
Click to collapse
Tell me what network your on and tell me what modem you are runinng? Take a screen shot of your APN settings. It will take 2 screen shots for the APN settings
I apologize for the delay as I was away for work until today...
The data works now.
I called into my service provider who at first stated they could not help me as my phone was unlocked. This was overcome as I still had the my Nexus S which I bought from my service provider which also had no data. After trouble shooting for 30 min on both phones (resetting, factory wiping, creating new APN's, etc) we were unable to get the data to work.
The tech rep then asked me to attend a Fido store (my provider), which I agreed to (rep asked me to insert my SIM into another Fido phone and try the data connection that way).
Within 10 min of the phone call my data connected just like that. Funny part is I didn't do anything to the S2.
I believe my provider switched off the data when I called in originally regarding my date stamp. Then when I called back they switched it back on knowing it wasn't any of my settings or the phone. This is just my theory.
My advice is never let your provider know you have an unlocked phone, especially Fido.
I appreciate your help and hope this helps anyone going forward.

Have Lost the Ability to control APN and Choose Mobile Networks Suddenly

Hello XDA,
I have a Galaxy Note 3. It is running:
Android 5.1.1 n9200zCU2AOl2 Phronesis V5;
kernel version 3.4.110-idleKernel-hlte-eur-6.6.5-note5port [email protected] #1
Unlocked
TLDR: I can't access APN or look at a list of networks. This is all I see: http://imgur.com/a/83YGW
I bought the phone from Rogers Canada. Unlocked last year. I recently attempted to port my number from Freedom Mobile to Public Mobile. I received an error when activating my SIM chip on their website, but when I powered up the phone. I was able to make calls, and to use data.
The data was unbearably slow, however, and so I went into mobile networks under settings, and told it to go to LTE. I don't remember what the exact setting set, and I can't reproduce it at the moment. I had LTE speeds on the phone now.
About three hours later, I noticed I had absolutely no ability to send or receive calls. But data was still working. I attempted to see if it was connecting to the wrong network, but when I went to see a list of mobile networks, nothing. Just those settings you see above on the screenshot.
Another hour had passed. Now, no data, no calls.
Public Mobile told me that there was an error in porting, and that they would fix it. They "confirmed" that it was fixed about four hours ago.
Despite being an unlocked phone, every SIM chip I put in fails to provide me with any connection. Now all it says on the lock screen is "searching for service."
I don't see what I could have done to have physically changed the menu settings inside the phone. I tried booting in safe mode. I even backed up my ROM, wiped it, and flashed an earlier backup from last year I saved. Nothing.
I'm really stuck, and would appreciate any advice that anyone can provide. I can also provide anything else you might need. Thanks.

Help me resetting SIM/Network settings

(X/Post From Oneplus 6 Forum)
Hello,
Yesterday I called my network operator since I was the only one in the office (compared to others with the same network operator) unable to receive calls.
The support made me receive a Network Configuration SMS, I applied it and immediatly the SIM started to turn on and off (see link):
https://imgur.com/a/uLAhcDU
As of now, my SIM works on other phones, other SIM (from same and different network operator) works on my phone. Looks like a configuration issue directly connected to my SIM/IMEI.
Tried to reset what I've been able to reset, and to reflash ROM. The only option left is to factory reset, but I'd not like to.
Is there a way to reset the SIM configuration? I am rooted if needed.
Thank you!

Messaging Problem in LG V60 ThinQ T-Mobile (Unlocked)

Hello guys.. My cousin lives in the US and he purchased an LG V60 recently - unlocked ofcourse. Now the thing is, the messaging service is totally off. The stock app isn't sending/receiving texts.
He has already tried using a lot of messaging apps (setting them to default), also inquired that the phone is unlocked, removing & reinstalling SIM and even getting the SIM card replaced. They even tried network reset and band changing stuff but it didn't help.
Even in Google Messages, He gets the msgs hours or days later & whenever he tries to send a msg, it shows either "Sending..." Or "Insert SIM card to avail this feature". But if he restarts the phone, since the app hasn't sent the text, it says "Tap to Resend". On tapping, it works fine but only for each and every msg - whether sent or received.
If you know a way, or have encountered this with any android, please help !
there's a lot of info missing here, fyi
- what's the carrier?
-are they on latest update?
-what us the exact model number, look into setting. this will tell us the variant of LG v60 your cousin has.
-did they attempt any tampering with bootloader or rooting?
-do they have good signal?
give us all the info to better help. add as much info to each answer as possible.
TRY THE FOLLOWING
factory reset the APN settings.
next if that fails, factory reset the phone.
I'M also in the US and have used many messaging apps and have had none of these issues.
I asked him about the questions and this is the exact reply :
1- My current carrier is Mint Mobile. (They use T-mobile's network)
2- My phone is on Latest update on everything (OS, messages, etc )
3- Exact Model number - LG V60 Thinq 5G LM-V600TM
4- I didn't tamper with bootloader or rooting.
5- Good signal ? Yes. I have full bars and it has been confirmed by Mint mobile customer service. They've checked it multiple times and made sure that that's not the reason I'm having problems with Messaging.
He has also done network settings reset upon request of the customer care from Mint mobile. They said sometimes that helps. Other than that, he hasn't done anything apart from changing the default app from LG's to Google's Messages.
He just noticed this [attached image] today from Settings - Network and Internet - Mobile networks - Network Unlock(View Current status and inquire Network Unlock Eligibility) But when he talked with T-Mobile Customer Care a few days ago, he gave them IMEI and they said it's unlocked & that he's free to use it anywhere.
P.S. He isn't into Custom ROMs & modding & I don't know much about Unlocked phones so I had nowhere else to go for help. Thanks for taking the time out to reply

Question SIM Card causing failures

Ndlelex said:
No change at all. I've even flashed in the latest UK firmware (of the BC52 family, as I remember) which some claim also has VoWifi enabled for. I haven't had any joy at all. I'll change it back to the original HK firmware this weekend.
I must mention, though, that the first time I flashed the SEA ROM and went into the part of the menu where WoWifi would configured, it froze with a blank screen for several seconds before taking me back to the home screen. When I went ito the menu again, it was just like I was using the original software, with no menu for VoWifi; and has been like that with subsequent firmware versions I have flash3d since. I don't know if that means anything, I am just making it known.
I must admit, though, that I have not flashed the SEA ROM by clearing the phone completely (I have been preserving userdata). Reason for this is I have media and games taking the lion's share of the 512 gigs of this thing's memory; and having to reinstate all that is not quite my idea of fun. But do you suppose that it would make a difference?
Click to expand...
Click to collapse
I've a SIM card issue too. This one is tied specifically to the SIM issues by Vodafone Irl.
Android 12 pre January Google Security update it works fine. Factory reset / Full Wipe / Sony Software repair / Newsflash with different regions, all result in the same issue. Immediately after factory reset it works, but a security update is pending install, requiring reboot. After reboot phone is unable to maintain SIM card, SIM menu in settings keeps disappearing, phone UI, Settings UI crashes. Only way to fix is to remove the SiM card.
2 SIMs from Vodafone Irl tried and one brand new from the Vodafone store. All fail. They all work perfectly fine in my previous OnePlus 8/6 phone.
Using a Three Irl SIM works perfectly, using a Vodafone UK SIM , roaming on the Vodafone Irl network also works.
I am at a complete loss as to what to try next.
I'm dealing with Customer Service with the past 2 weeks and as of now, no service engineer has responded.
defsix said:
I've a SIM card issue too. This one is tied specifically to the SIM issues by Vodafone Irl.
Android 12 pre January Google Security update it works fine. Factory reset / Full Wipe / Sony Software repair / Newsflash with different regions, all result in the same issue. Immediately after factory reset it works, but a security update is pending install, requiring reboot. After reboot phone is unable to maintain SIM card, SIM menu in settings keeps disappearing, phone UI, Settings UI crashes. Only way to fix is to remove the SiM card.
2 SIMs from Vodafone Irl tried and one brand new from the Vodafone store. All fail. They all work perfectly fine in my previous OnePlus 8/6 phone.
Using a Three Irl SIM works perfectly, using a Vodafone UK SIM , roaming on the Vodafone Irl network also works.
I am at a complete loss as to what to try next.
I'm dealing with Customer Service with the past 2 weeks and as of now, no service engineer has responded.
Click to expand...
Click to collapse
This is "similar" to the isse i've had on my old Iphone 4S with Wind IT SIM. There was something incompatible with wind sim cards with that iphone model. Appll swapped 3 times the phone but never solved the issue. Wind also done nothing. The issue was solved some years after but i already sold the phone at that time
Yeah, I can't see the issue being fixed.
Funny that the issue happed after the security update.
I don't want to have to switch networks but it looks like I might have no choice. I'll hold out I'll either Sony get back to me or a new security update lands on new FW.
I've not seen anyone else with the same issue, but there's no provider here selling the Xperia 1.3
Either way, it's a pain in the ass...
I tried changing the enabled radio modes in an Engineering menu and saw exactly this. If it's not a mode in the GUI everything crashes. I fixed it with a network reset. In your case, experimenting with the Engineering menu might be the only way to fix it. If you reset it and the SIM requests an unsupported mode you'll be back to crashing.
defsix said:
I've a SIM card issue too. This one is tied specifically to the SIM issues by Vodafone Irl.
Android 12 pre January Google Security update it works fine. Factory reset / Full Wipe / Sony Software repair / Newsflash with different regions, all result in the same issue. Immediately after factory reset it works, but a security update is pending install, requiring reboot. After reboot phone is unable to maintain SIM card, SIM menu in settings keeps disappearing, phone UI, Settings UI crashes. Only way to fix is to remove the SiM card.
2 SIMs from Vodafone Irl tried and one brand new from the Vodafone store. All fail. They all work perfectly fine in my previous OnePlus 8/6 phone.
Using a Three Irl SIM works perfectly, using a Vodafone UK SIM , roaming on the Vodafone Irl network also works.
I am at a complete loss as to what to try next.
I'm dealing with Customer Service with the past 2 weeks and as of now, no service engineer has responded.
Click to expand...
Click to collapse
Sounds like your device has a problem. I haven't had any issues (besides the absence of VoLTE/VoWifi) with all firmware versions I have tried out so far. What happens when you do a clean install with the original firmware?
Ndlelex said:
Sounds like your device has a problem. I haven't had any issues (besides the absence of VoLTE/VoWifi) with all firmware versions I have tried out so far. What happens when you do a clean install with the original firmware?
Click to expand...
Click to collapse
Same issue. Everything works perfectly until the first reboot when the new security patch gets installed.
That's the problem.
If it's hardware surely the fault would occur before the security patch is applied not after.
kevinmcmurtrie said:
I tried changing the enabled radio modes in an Engineering menu and saw exactly this. If it's not a mode in the GUI everything crashes. I fixed it with a network reset. In your case, experimenting with the Engineering menu might be the only way to fix it. If you reset it and the SIM requests an unsupported mode you'll be back to crashing.
Click to expand...
Click to collapse
I might give that a try.
In this menu I assume?
defsix said:
I might give that a try.
In this menu I assume?
Click to expand...
Click to collapse
How do you get to this engineering menu?
Ndlelex said:
How do you get to this engineering menu?
Click to expand...
Click to collapse
Go into the Dialler and type the following to go to the menu you want.
Service Menu *#*#73788423#*#*
FCM Diagnostics *#*#426#*#*
IMEI Info *#06#
Testing *#*#4636#*#*
The One in the image is the Testing menu, Phone info, 3 Dot Menu top right (scroll down then up to make it appear), Select Radio Band
PROCEED WITH CAUTION! I'm guessing you could possibly FUBAR here.
I had the problem after touching this menu:
*#*#4636#*#
-> Phone information
--> Set Preferred Network Type:
---> NR/LTE/GSM/WCDMA
Everything SIM related crashed with a different value. I have a XQ-BC62 so I'm not sure my setting is the same as other phones.
A network reset will fix any damage done here, assuming your SIM card doesn't break it again. It will cost you all BT pairing, WiFi passwords, and APNs.
kevinmcmurtrie said:
I had the problem after touching this menu:
*#*#4636#*#
-> Phone information
--> Set Preferred Network Type:
---> NR/LTE/GSM/WCDMA
Everything SIM related crashed with a different value. I have a XQ-BC62 so I'm not sure my setting is the same as other phones.
A network reset will fix any damage done here, assuming your SIM card doesn't break it again. It will cost you all BT pairing, WiFi passwords, and APNs.
Click to expand...
Click to collapse
I had performed a Network Settings reset, same issue. I had and currently have the same settings as above.
What it reminds me of, is having an old SIM Card and putting it in a new phone, similar to when they changed the voltage capabilities of the SIM cards years ago. Back when we were trimming SIM cards with scissors to fit
So I received a Play store System update today, again still showing February 1St 2022.
Still having the same issue...
Google Video
I had a response from Sony UK, but nothing other than try switching off 4G and 5G ! I can't even get to that menu!
Just received FW update 61.1.A.4.78 this morning. Unfortunately no change to my Vodafone issue.
As of today, still no response from Sony.
I've determined that the SIM profile must be stored on the Phone. Factory resetting the phone whilst roaming and changing a setting in the *#*#4636#*#* menu appears to cause it. The roaming was the thing that killed it. However it still doesn't explain why no Vodafone IRL SIM card worked.
I have managed to repeat a similar issue where the SIM menu crashes each time it is accessed , again after messing with the *#*#4636#*#* menu. and /or hot swapping SIM cards causes the problem. Use a different SIM card in the device and it works , use the original SIM card in a different device and it works. I believe there is a SIM profile stored on the device that is getting corrupted. The only resolve is a factory reset. Or a new SIM card (waiting to confirm this, new card on the way...can't face another factory reset!)

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