No mobile internet after Rom flash - Xperia Z2 Q&A, Help & Troubleshooting

Hi,
I recently changed my ROM from Cyanogenmod (some of the last nightlies; so Android 5.1.1) to a custom rom called "existenz".
After successfully flashing the 6.3.5 Premium Update to my phone, the mobile data stopped working correctly.
Whenever I try to enable mobile data in my settings, the trigger simply goes back to disabled.
Reason for ROM change: I didnt want to use nightlies anymore and this ROM seemed perfect for my phone.
I tried several restarts, but nothing changed.
I flashed the ROM with TWRP.
Thanks in advance,
Pascal
(If nothings helping, whats your custom ROM you could suggest me?)

I flashed the latest nightly of cyanogenmod again. Mobile data is working now. Guess I'm never leaving cyanogenmod.

keksautomat said:
I flashed the latest nightly of cyanogenmod again. Mobile data is working now. Guess I'm never leaving cyanogenmod.
Click to expand...
Click to collapse
Are u sure u enabled ur APN settings from settings/more/internet settings?
For ur information only CM roms will enable Internet Apn automatically after flashing rom. Sony custom roms did not enable Internet APN automatically. We need to set it by ourself or u can install internet APN from settings/more/internet settings

@Rajeev
Good point. I read something about "allow only IPv4" - so I changed that - rebootet my phone but still nothing.
I cant remember tho about anything saying its disabled. Might give it a second try then, havent fully configurated my phone yet.
Thanks.

Only turn ON internet data and go to config / •••More / internet settings- Download settings for Internet and MMS

Related

[Q] Data connection not working after flashing custom rom :'(

I'm having a problem since I flashed the sensation rom (by crysis21) on my SGS2 yesterday.
My internet connection (mobile network) doesn't work anymore
I checked the APN settings and already resetted them and enterd my APN settings again. But it still doesn't work. I also restarted the phone multiple times.
Does anybody know where the problem is?
Installation steps were:
*copying the rom to sd
*CF-rooting the kernel via Odin
*booted up in CWM recovery and chose "install from zip file" and installed the rom (without any wipes)
Before I had the default samsung factory rom on it.
Have I made a mistake?
regards
lunatikk
try this http://forum.xda-developers.com/showthread.php?t=1260715
lunatikk said:
I checked the APN settings and already resetted them and enterd my APN settings again. But it still doesn't work. I also restarted the phone multiple times.
Click to expand...
Click to collapse
Have you checked the APN settings are the good ones? One thing is to have ones enabled and other totally different is to have ones that actually work.
Also when you go from Stock to Custom ROM you should do a full wipe!
Go to CWM and format /system, /data, /cache and reinstall the ROM.
warrez said:
try this http://forum.xda-developers.com/showthread.php?t=1260715
Click to expand...
Click to collapse
thanks, I'll check this out as soon as I get home.
I refrain a little from doing a full wipe because I don't want to get all my apps deleted (and I'm a little too lazy to perform a backup). Would mybe a new modem solve this problem?
And of course I checked the APN settings. I deleted the existant APN setting and added a new one so the settings can't be the problem.
I also checked some entries in Settings/Phone Info/Status.
It says here (translated from german):
Mobile Network Type: HSDPA
Service State: Function (or working rather)
Mobile Network Status: Disconnected (but sometimes it says also connecting here, though it never really gets conencted)
regards,
lunatikk
Even though I wiped everything, the data connection still doesn't work.
I did
"Wipe data/factory reset"
"Wipe cache partition"
"Wipe Dalvik cache"
and after that I installed the Sensation rom zip file again.
The data connection still doesn't work :'( (I added the APN after install, of course - the settings are 100% correct).
I also installed another rom (infected rom) but there's still no data connection.
Am I missing something? I'm getting really desperate over here.
regards
lunatikk
You could try flashing another Stock ROM via Odin and see if in stock works or not, then try a Custom ROM.
Sometimes the phone takes a while once you flash a new ROM till it establishes a decent 3G connection. Having "Data enabled", how much did you wait for the phone to establish a connection?
AzureusPT said:
You could try flashing another Stock ROM via Odin and see if in stock works or not, then try a Custom ROM.
Sometimes the phone takes a while once you flash a new ROM till it establishes a decent 3G connection. Having "Data enabled", how much did you wait for the phone to establish a connection?
Click to expand...
Click to collapse
I thought so too... Well, at work I waited some hours for the data connection being established but nothing happened.
This is crazy. I even restored my system with CWM and it still ain't working.
As soon as my GF comes home I'll replace the sim cards. Maybe the problems at the providers side...
after that, I'll try a stock rom (via odin).
thanks for your tip
lunatikk
I have the same problem and I'm on check rom.
i'm having the exact same problem, but with multiple roms and not just one. i tried omega and delv. both of these are giving me no data connection (only at the beginning) but once i restart there's no data connection.
did you manage to figure out what went wrong? I've resulted in my original rom that i had by restoring it using cwm.
dear sir,
my device is micromax canvas a1 aq4501. when I recovering a custom rom like cm13 my device Internet data not connected. I fully checked setting like mobile data, apn, but it still not working.
now I want my device situable custom rom. please give me the right information.
my email id :- [email protected]
your regard,
Jadab Debnath
India

[Q] APNs on AOKP Roms

Hi, I have some problems restoring and setting my my APNs up.
I have tried so many AOKP ROMs and in every and each ROM, there are no APNs in the list, i tried Reset to Default, fixing permissions, creating a new APN but when saving, nothing happens.
Can anyone please help me out?
Thank you!!!
opticon107 said:
Hi, I have some problems restoring and setting my my APNs up.
I have tried so many AOKP ROMs and in every and each ROM, there are no APNs in the list, i tried Reset to Default, fixing permissions, creating a new APN but when saving, nothing happens.
Can anyone please help me out?
Thank you!!!
Click to expand...
Click to collapse
I've had this issue before, after flashing ROMs I could not get the APN's.
What I did was Manually select the Network then select the Carrier.
After that I would reboot the phone and walla it works
Thank you for replying hing98, but I did what you said and it didn't work!
I've installed the latest CM9 and it didn't work neither ... im desperate now
Reboot
Sent from my GT-I9100 using xda premium
opticon107 said:
Thank you for replying hing98, but I did what you said and it didn't work!
I've installed the latest CM9 and it didn't work neither ... im desperate now
Click to expand...
Click to collapse
Reboot 2-3 times it should definitely show up now.
I rebooted my phone like hundred times.
I've just flash Lite'ning rom thru odin, I seemed to work (I saved an APN) but I didn't have internet so I modified my MNC in the APN pressed save and then the APN disappeared
Pull battery...
Pull battery and your APN should be restored. With Hydrog3n ICS, I'd never get signal or data when flashing but after pulling battery and removing and replacing the SIM, I get coverage back.
Download an app call hiapn from play.
Might need to use TB to make it a system app.
It can automatically set your apns based on your sim.
It works 100% for me.
----------------------
GTI9100
Hydra H2O 1.2.1
fluxi xx.01_rc5
I have different behavior on different ROMs. Sometimes phone needs to be rebooted to restore APNs. Sometimes it is simply needed to wait for a while.
I have installed ROM in the evening and after hours of tries I simply went to sleep completely disappointed. In the morning internet was online
charleypark said:
Pull battery and your APN should be restored. With Hydrog3n ICS, I'd never get signal or data when flashing but after pulling battery and removing and replacing the SIM, I get coverage back.
Click to expand...
Click to collapse
Didn't work
kubics said:
I have different behavior on different ROMs. Sometimes phone needs to be rebooted to restore APNs. Sometimes it is simply needed to wait for a while.
I have installed ROM in the evening and after hours of tries I simply went to sleep completely disappointed. In the morning internet was online
Click to expand...
Click to collapse
I rebooted my phone several times, I installed Dragon ICS ROM last night and I let it rest all night... no APNs yet .
Is your phone working, i.e. carrier is detected and voice services are working?
WINNER!
aceofclubs said:
Download an app call hiapn from play.
Might need to use TB to make it a system app.
It can automatically set your apns based on your sim.
It works 100% for me.
Click to expand...
Click to collapse
Now the APNs appear but internet isn't working and when I edit the MNC field and save the APN, the APN disappears from the list
Any idea?
kubics said:
Is your phone working, i.e. carrier is detected and voice services are working?
Click to expand...
Click to collapse
Yes, actually I got a brand new SIM card last Thursday. I can make phone calls, send and receive SMS, connect to WiFi. I don't know what you mean,exactly, with voice services.
opticon107 said:
...so I modified my MNC in the APN pressed save and then the APN disappeared
Click to expand...
Click to collapse
I know, this is probably stupid question, but is your mobile data enabled? I am asking because I noticed that ROM behaves exactly as you wrote here. When mobile data toggle is off and you edit some APN, edited APN disappears…
kubics said:
I know, this is probably stupid question, but is your mobile data enabled? I am asking because I noticed that ROM behaves exactly as you wrote here. When mobile data toggle is off and you edit some APN, edited APN disappears…
Click to expand...
Click to collapse
Yes mobile data is enabled actually it doesn't matter if it's enabled or disabled, always delete the APN when I attempt to modify and save it.
Is it working with samsung stock rom? Have you used some kernel cleaning scripts?
kubics said:
Is it working with samsung stock rom? Have you used some kernel cleaning scripts?
Click to expand...
Click to collapse
DragonICS-25-05-2012-SGS2 Kernel: 3.0.32-FLUXI-XXetc...
But I have also tried: litening ROM, CM9, MIUI, Resurection Remix, Omega...etc..and even tried CM7 just to verify if it was ICS related issue.
But was the Internet working on original Samsung ROM?
I am asking this because when I first time tested Fluxi kernel, I lost WiFi functionality because of kernel cleaning script I have used. I had to return back to Samsung ROM, root again and install AOKP ROM to fix it.
Sometimes are these issues related to kernel cleaning or another possibility is, that you did not wipe phone correctly between different ROMs.
I would recommend to return back to original Samsung ROM (using Odin) and then to root and instal AOKP ROM exactly according to instructions.
kubics said:
But was the Internet working on original Samsung ROM?
I am asking this because when I first time tested Fluxi kernel, I lost WiFi functionality because of kernel cleaning script I have used. I had to return back to Samsung ROM, root again and install AOKP ROM to fix it.
Sometimes are these issues related to kernel cleaning or another possibility is, that you did not wipe phone correctly between different ROMs.
I would recommend to return back to original Samsung ROM (using Odin) and then to root and instal AOKP ROM exactly according to instructions.
Click to expand...
Click to collapse
Internet was working on every ROM I used BEFORE this happened, this problem came from nowhere , I always do the proper wipes/cleanings between ROMs. I have tried with Siyah Kernel, and others. I'll try the Original ROM and I'll let you know what happen, ok? Thank you.
If you have more ideas please post them

[Q] Lost automatic connection with my data plan

Hi everybody!
Yesterday, I applied a custom rom to my Galaxy Note and after a successful installation, my data plan wasn't working like it used to be.
I have to say this isn't the first time I have done this, and in the previous opportunities after flashing the rom and rebooting, the EDGE/3G icon appeared by itself detecting my data plan. I never had to configure the APN settings (like it is said in many posts I have seen here).
So, when I realize that it wasn't working properly, I re-flashed the rom but didn't worked. So then, I downloaded the ICS stock rom and flashed it through Odin, hoping it would reset all things here and would give me the initial configuration, but that didn't work either.
I have entered through settings and deactivated/activated the options related to mobile data, but that icon never appears or my data connection showed up.
Forgot to mention that this phone was unlocked through cellunlocker by code, and that I can make phone calls with no problem and also the Wifi works fine... And thank you in advance for any advice/help that you could make
If it's happening with different ROMs then take a look at your modem (baseband). Are you using I717UCLF6? Go to System Settings-About Phone-Baseband Version.
Like ^^^^ said, and you didn't say it, but I'm guessing T-Mobile. So flash any ROM you like, reboot and let but settle in, then flash the Blaze 4G or whatever T-Mobile modem works best for you.
You did enter your APN info?
Agoattamer said:
You did enter your APN info?
Click to expand...
Click to collapse
This....^^^^^^^^^^^^^^^^^^^^^^^^^^^................g

[Q] CM 11 - 3G/Mobile Data not working

Hi All
Some major help is required; I have flashed CM 11 - cm-11-20140504-SNAPSHOT-M6-i9300.zip and Gapps onto my Galaxy S3 without any issues, however I cannot use my mobile data/3G for whatever reason. Initially it was telling me to ensure date/time settings were correct, which they are because it's on automatic settings, however I can't figure out what the problem is. I have since flashed back to an earlier Snapshot to see if this would make any difference, which it hasn't.
Any ideas?
Questions go in the q&a forum. Report your own post and ask a moderator to move it for you.
It could be any number of things, flash the correct stock firmware for your country with odin to test.
I have got mobile date gprs working. However 3g is not working. I also have rooted and custom rom. (Country Pakistan). Please suggest solution.
Guys is there any patches/solutions for this - this is a pretty big issue that I'm surprised to see doesn't seem to have been addressed much.
I flashed CM 11 - Snapshot-M5-i9300 and Gapps, but the mobile/network data still doesn't work. Is there any Radio files or anything I would need to flash?
EDIT:
I've fixed it! For some bizarre reason it seems when flashing any custom rom, you would need to manually set up the roaming/data settings that your mobile network can provide you. I simply fixed this by going into Mobile Networs > Access Point Names, selecting my mobile network (02) and amending the settings, rebooted my phone and voila 3G full works!!

[HELP] No mobile data after flashing custom rom

Hello everyone !
I have a problem : When I flash a rom (Nougat or Marshmallow), I do not have any mobile data. I can always make calls and receive messages but when I activate the data, I do not have the symbol 3g or 4g and impossible to go on the internet (it tells me that I am not connected to any network) or Receive MMS.
I tried several ROMs based on Android 6 and 7 but the problem is the same, I also tried to flash different firmwares but it does not change anything while on Xiaomi.eu or stock MIUI ROM I have no problems.
I checked the IMEI and the APN, everything is correct.
I also tried the VoLTE patch (Android 6&7) but it did not change anything.
So I'm asking you the question: Do any of you have a solution?
I use the lastest Resurrection Remix ROM with the MIUI firmware (7.3.9 by @reemar)
SharkEzz said:
Hello everyone !
I have a problem : When I flash a rom (Nougat or Marshmallow), I do not have any mobile data. I can always make calls and receive messages but when I activate the data, I do not have the symbol 3g or 4g and impossible to go on the internet (it tells me that I am not connected to any network) or Receive MMS.
I tried several ROMs based on Android 6 and 7 but the problem is the same, I also tried to flash different firmwares but it does not change anything while on Xiaomi.eu or stock MIUI ROM I have no problems.
I checked the IMEI and the APN, everything is correct.
I also tried the VoLTE patch (Android 6&7) but it did not change anything.
So I'm asking you the question: Do any of you have a solution?
I use the lastest Resurrection Remix ROM with the MIUI firmware (7.3.9 by @reemar)
Click to expand...
Click to collapse
Try *#*#4636#*#* phone information and choose network, it fixed it for me..
reemar said:
Try *#*#4636#*#* phone information and choose network, it fixed it for me..
Click to expand...
Click to collapse
Thanks for your quick reply !
I do not understand very well, once in phone information, what should I do exactly?
Thank you in advance !
I've been encountering similar issues with no data available... what helped me is I simply installed ROM I wanted and then restored EFS (partition or whatever it is) from a ROM backup I am sure data works....
Just check your APN settings...
I had similar issues after installing some google apps packages - don't remember which exactly. Try to install fresh rom without Gapps and check if problem still exists. If not, look for good Gapps. It took me whole day to find which caused this.
Harrocan said:
I had similar issues after installing some google apps packages - don't remember which exactly. Try to install fresh rom without Gapps and check if problem still exists. If not, look for good Gapps. It took me whole day to find which caused this.
Click to expand...
Click to collapse
My mobile data was working when I installed Resurrection Remix but after installing OpenGApps it stopped working.
Jyot Prakash Verma said:
My mobile data was working when I installed Resurrection Remix but after installing OpenGApps it stopped working.
Click to expand...
Click to collapse
I have had a problem with mobile data transmission on Xiaomi Redmi Note 7 (Lavender). I installed various custom rom Android 12 and unfortunately on any of them I had no internet connection via Mobile Data. WiFi worked, phone calls also ...
Here's what helped me:
1. I installed a custom rom based on MIUI (of course, first Orangefox, and then MiUI Wolf Os for Lavender). After installation, everything worked, there was an internet connection via Mobile Data. The SIM card was even on Sloat 2 and everything worked!
2. I installed Awaken OS 2.9 for Lavender (with gapps). When I was asked to insert the SIM card during the installation, I put it into the slot 1. Unfortunately, Awaken 2.9 does not support the mobile internet on the slot 2.
Why does this solution help? Because this way of installing Awaken OS does not destroy firmware from Xiaomi. I hope it helps you too and will work too for you

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