I am unable to get mobile data on my Galaxy S3 SCH-R530 after upgrading it to 4.3 MJA base band as mobile is reading inbuild parameters of data instead of reading it via SIM and i have taken logs of modem file to figure it out but unable to get it. i set the apn manually but no luck. the mobile internet icon doesnt even show up in the notification bar. Tried restarting, factory resetting, even reflashing but no luck.Does anyone have any idea to figure it out would be helpful.
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Background: One month ago I rooted and flashed a custom ROM for the first time, I had no problem.
After flashing a few different ROMs, I noticed that my mobile data was acting weird. I could browse the internet and access most internet required apps, but I couldn't download from the play store, watch youtube videos, or get messages from whatsapp messenger.
Problem Today: I just flashed a ROM that I like but now I have NO mobile data at all. I have full bars and my notification bar shows H+ or 3G but data just doesn't work. In the Browser I get this error: "authentication via the proxy server was unsuccessful".
I restored a nandroid backup of stock Touchwiz and data was working again. So I just did a re-flash of the custom ROM and data still doesn't work!
Notes:
- Notification shows data is connected but I can't access the internet.
- Did a restore to stock and data works, re-flashed a custom ROM and data doesn't work.
- Airplane mode isn't on.
- There is no mobile data limit.
- There is nothing in APN settings, there also wasn't anything in stock Touchwiz (but data worked).
- I flashed different modems and they don't work.
- I have tried some APN apps in the play store but they don't work.
- I am on UltimaROM v7.1 // Siyah kernel 1.8.5 // Android 4.1.2
- Wi-fi works.
Please help.
I ended up fixing the problem. So for those of you who might have a similar issue: the problem was with my APN settings. I just had to properly configure it and disable the proxy.
leeznon said:
Background: One month ago I rooted and flashed a custom ROM for the first time, I had no problem.
After flashing a few different ROMs, I noticed that my mobile data was acting weird. I could browse the internet and access most internet required apps, but I couldn't download from the play store, watch youtube videos, or get messages from whatsapp messenger.
Problem Today: I just flashed a ROM that I like but now I have NO mobile data at all. I have full bars and my notification bar shows H+ or 3G but data just doesn't work. In the Browser I get this error: "authentication via the proxy server was unsuccessful".
I restored a nandroid backup of stock Touchwiz and data was working again. So I just did a re-flash of the custom ROM and data still doesn't work!
Notes:
- Notification shows data is connected but I can't access the internet.
- Did a restore to stock and data works, re-flashed a custom ROM and data doesn't work.
- Airplane mode isn't on.
- There is no mobile data limit.
- There is nothing in APN settings, there also wasn't anything in stock Touchwiz (but data worked).
- I flashed different modems and they don't work.
- I have tried some APN apps in the play store but they don't work.
- I am on UltimaROM v7.1 // Siyah kernel 1.8.5 // Android 4.1.2
- Wi-fi works.
Please help.
Click to expand...
Click to collapse
Check your ROM's forum or your kernel's.Maybe it is a common bug and you only have to wait until they fix it.
P.T.J0hnnie said:
Check your ROM's forum or your kernel's.Maybe it is a common bug and you only have to wait until they fix it.
Click to expand...
Click to collapse
They already said 3 hours before your post that they had fixed it
Sent from my GT-I9300 using xda app-developers app
skimminstones said:
They already said 3 hours before your post that they had fixed it
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
I didnt see it my bad.
I had custom android 4.2.2 and i reverted to the original 4.1.2 rom. Now mobile data isn't working. The phone was originaly on orange ro now it is on cosmote ro. It worked Before on cosmote with t e original rom and the custom one. I sent an sms and recived setings but it still doesn't work. It says it's activr bot i see no icon in the notification tab.
Any ideea?
Have you tried checking the APN settings?
I have an issue where i flash my phone with SlimROM and then Chrome and Whatsapp is not working on data. Then I realize that the ROM auto select the wrong APN settings. I entered the right APN settings and I have no issue with getting data.
Also check if all the apps are receiving data via wifi first.
ctam said:
Have you tried checking the APN settings?
I have an issue where i flash my phone with SlimROM and then Chrome and Whatsapp is not working on data. Then I realize that the ROM auto select the wrong APN settings. I entered the right APN settings and I have no issue with getting data.
Also check if all the apps are receiving data via wifi first.
Click to expand...
Click to collapse
Wifi works. I'm wrighting from my phone now. The settings where wrong but changing them is the first thing i tried but i didn't work.
I never had thisproblem before even when i flashed custom roms. It feels like it doesn't activate the net even if it says it does.
Got it. I had the settings for gprs and i needed the ones for broadband.
Hi everyone,
Thanks for your comment. It turns out the ROM was selecting the wrong APN by default. I switch the APN and updated the settings. Now it works like a charm
Hi, i writted CM11 to s3 and I cannot use my mobile internet. I can use wifi without any problem, also I can use my mobile internet to PC via usb. Any solutions?
Tried to reinstall and update CM11
CM installed from stock 4.1.2
You'll probably just need to find your mobile providers APN for data and put that in, your provider will have the manual details. Usually the sim carries this information, perhaps sim toolkit may also have a feature to set this up.
And yes you can tether your mobile internet whether it be wifi or data:
-Install Samsung usb drivers. (if you haven't already, or the kies program)
-Plug in phone.
-Settings/Wifi/Wireless & networks area - More/Tick USB tethering.
It'll then just work.
If the instructions aren't exactly as I wrote, I'm basing that on the location in Lollipop. It's in a similar - if not exact location in KitKat.
Hi. I have an SHV-E270k Galaxy Grand (Korea). I installed a ROM called "dokdo rom" which is based on CyanogenMod 12. On first boot, the mobile data was initially on since I can see the H+ sign which indicates that I'm connected via mobile data. I turned it off and used my WiFi instead. Then turned the WiFi off, mobile data on. Poof. No more icon, but I can still browse the internet.
Please help me restore the icons. I already tried rebooting, clear cache and full wipe.
Hi
Since the MIUI 10.2.2 update last night, I have been unable to use mobile data, I quickly discovered this was due to the APN network settings being incorrect.
I am unable to change the 'Access Point Name' settings, as they do not clear when "reset" and are not able to be edited meaning I have no Network data.
I have restarted the phone, turned on/off airplane mode, re-inserted the SIM. Contacted my service provider and gotten a new SIM, none of these things have worked,
-unable to attach images of issues, because my account does not have 10 posts.
Any advice on how to resolve this would be greatly appreciated.
If suggesting factory restore, would you be able to give me some advise on how to save all of my app data ect so I can backup/ restore to this, is it possible to do to external SD card, what is lost when doing so, ect.
Many thanks in advance,