I have been searching around for answers to my question for a few hours and have come up with nothing.
I originally flashed an older rom onto my phone in order to unlock it, then it did the OTA update to 4.3, following which I used CF auto root to successfully root it. Now this is what I have:
AT&T Galaxy S3
Android version 4.3
Baseband version I747UCUEMJB
Build Number JSS15J.I747UCUEMJB
SE Android Status Enforcing SEPF_SMSUNG-SGH-I747_4.3_0024
When I try to enable wifi tethering, either natively or through Portable Wifi Hotspot or other apps then I get the message that "Mobile data is not available or invalid SIM", neither of which is true. I have been able to get FoxFi/PDANet to work for bluetooth tethering, but not WiFi which I need for some of the devices I have with me.
I have seen that perhaps there are some modem/bootloader files that can be flashed over, but those seem to be specific to the leaked version of 4.3 , and I dont know if they would work for the UCUEMJB.
Is there any way I can do a simple mod to enable the wifi teathering? Would prefer to avoid flashing another rom bc Im traveling through Latin America and access to decent internet is a big issue (hence the need to tether).
Thanks!
Related
first thing, I've been flashing a number of rom's to my phone to find the right one. only a couple apparently actually have a connection to the data. the rest won't connect to the internet without a wifi connection. they will still make phone calls and send/receive text messages, but they will not connect to the internet using data. I don't know what's going on with it, honestly.
and the other thing, do touchwiz based custom roms exist for the i747? preferably ones that are either 4.3 or 4.4 based.
sorry, I'm still new to the whole thing, and I'm trying to get my phone in stable, working order. I have been searching a lot and trying a number of different things, though.
also, 4.3 is avaliable as an OTA upgrade...but as I understand it, if I do that, I'd never be able to downgrade past that, would I? would that mean I'd never be able to root my phone and install custom firmware again?
hachikid said:
first thing, I've been flashing a number of rom's to my phone to find the right one. only a couple apparently actually have a connection to the data. the rest won't connect to the internet without a wifi connection. they will still make phone calls and send/receive text messages, but they will not connect to the internet using data. I don't know what's going on with it, honestly.
and the other thing, do touchwiz based custom roms exist for the i747? preferably ones that are either 4.3 or 4.4 based.
sorry, I'm still new to the whole thing, and I'm trying to get my phone in stable, working order. I have been searching a lot and trying a number of different things, though.
also, 4.3 is avaliable as an OTA upgrade...but as I understand it, if I do that, I'd never be able to downgrade past that, would I? would that mean I'd never be able to root my phone and install custom firmware again?
Click to expand...
Click to collapse
Now are you on a custum rom?
if yes, mabye that the custum rom that you flashed on your phone it was a beta version and that Mobile Data is not avaible on this rom.
Or mabye that mobile data is not enable on your phone.
Mabye that you jusy have any mb/gb left for your month.
as you Said : I'm still new to the whole thing, and I'm trying to get my phone in stable, working order. I have been searching a lot and trying a number of different things, though.
What i suggest you is first of all to keep your phone unrooted you are saying that you are trying to get your phone stable. And when your phone is rooted on a custum ROM it may be not stable.
Yes 4.3 is avaible throught the air and through Samsung KIES 3.
the new Samsung 4.3 Firmware has a new Bootloader.
After upgrading a bootloader you CANT revert it. You cant downgrade the bootloader after.
Also the new Android 4.3 from samsun has a new security that they named : KNOX
This new Security software that EVERYONE HATE make rooting,flashing a LOT harder.
If you update to 4.3 you WONT be able to downgrade to 4.2.1 or 4.1.1.
iF you try this will result to a Soft-Bricked Device.
On 4.3 you are still able to root the Galaxy s3 I747 but DONT try to downgrade through Odin YOU WILL BRICK YOUR DEVICE.
Hope that i help you. Any other question? Just ask!
Just to add to Killers post, one reason you may not be getting data is because you didn't follow instructions when installing the custom rom. For instance, with SRx3 rom, you have to flash a new modem and bootloader, not doing so generally leads to data issues. You may also want to familiarize with the proper apn settings and see if that's the culprit. Hope this helps.
I just updated to stock 4.4.2 Kitkat on my i747 (and then rerooted). However, since I'm using the phone on T-Mobile network, I get an "Mobile data not available or invalid sim" error when I switch on Hotspot.
I know in past firmware, the were mods that changed or removed the Tetheringprovision.apk but those threads warn not to use such mods in any other firmware except Jelly Bean.
Does anyone have a workaround to get Hotspot working on 4.4.2 yet?
anyone?
anyone?
All the experts, I am having where when I click on Wifi calling, it says Enabling and just sits there and does nothing all greyed out
Even moved closer to my WIFI router to see if that fixes the problem but to no avail
I am on Galaxy s6 Edge, TMO, Latest Firmware, Unikernal Root, with .latest XPOSED
I can not seem to get WIFI Calling to work
Please advise what I need to do to fix this if possible .......short of clean re-install
Remember I am rooted so I can go in and make changes you tell me to do if that will fix it all
Thanks Everyone
Wifi calling will only work on a stock unmodified tmobile rom preferably stock firmware.
Pp.
Okay, so long story short, I have a SM-G928A I brought over from ATT to Tmobile. Before, I was running the 6.0 ATT Rom, and WIFI Calling would not enable, although I BELIEVE it was working. (I could see the symbol in the call status screen when I made a call.) You also need Wifi calling to use advanced messaging features. Yesterday I flashed the newest 7.0 ATT Rom to the phone, everything works fine, however Wifi calling still can't be enabled.
I read a couple places that even if I put the TMobile ROM on it, WIFI Calling still won't work. I need some advice. I really want this to work, however the phone is working fine besides that.
Right now I am on G928AUCU4EQC6.
I also read something about flashing a PIT file with the TMOBILE rom, but it was not clear at all, very confusing. I need some advice on what to do next.
Forgot also want to remain on Nougat.
How did you manage to flash ATT rom on it? i've been trying and keep getting "Secure check fail pit" Im on tmobile rom with Nougat 7.0
braddman said:
Okay, so long story short, I have a SM-G928A I brought over from ATT to Tmobile. Before, I was running the 6.0 ATT Rom, and WIFI Calling would not enable, although I BELIEVE it was working. (I could see the symbol in the call status screen when I made a call.) You also need Wifi calling to use advanced messaging features. Yesterday I flashed the newest 7.0 ATT Rom to the phone, everything works fine, however Wifi calling still can't be enabled.
I read a couple places that even if I put the TMobile ROM on it, WIFI Calling still won't work. I need some advice. I really want this to work, however the phone is working fine besides that.
Right now I am on G928AUCU4EQC6.
I also read something about flashing a PIT file with the TMOBILE rom, but it was not clear at all, very confusing. I need some advice on what to do next.
Click to expand...
Click to collapse
So, how was the flashing process because people told me that flashing the s6 series was not a good idea since it was not universal like the s7 series. Also, did volte work because that's what I mainly need to enable on my s6 edge which I'm taking from atnt to tmobile
Recently upgraded my S8 to an S9 I bought on eBay. The phone is unlocked (Rogers) & I'm using it successfully on Consumer Cellular (AT&T). There are a couple of problems, though. First, I can't get the hotspot to pass data. I can turn the hotspot on, and devices connect to it, but traffic does not route through the phone to the internet. Also, apparently Canadians don't get to use the SPO2 sensor.
I'm hoping that I can flash a US ROM onto this phone and get the hotspot working, and that the SPO2 functionality will return along with that. I use GPS Tether and the hotspot to support Waze on a tablet in the car, so the hotspot is pretty important.
I also use NFC ReTag and Tasker to run scripts & some of the things I'd like those scripts to do require root.
I'm fairly familiar with Odin & updato, & have rooted Samsung tablets before. I'm open to LineageOS or other ROMs if necessary but would prefer to stay as close to stock as possible.
So here's what I'd like to accomplish, prioritized:
1- Functioning hotspot
2- SPO2 sensor working in Samsung Health app
3- Root
Important info:
Model SM-G960W
One UI 2.1
Baseband G960WVLU7ETG1
Kernel 4.9.186-18803994
Build QP1A.190711.020.G960WVLU7ETG1
Service Provider SW SAOMC_SM-G960W_OYV_RWC_QQ_0011 365139304e573398 RWC/RWC/XAC
Patch level 7/1/2020
Advice?
tldr; Yes
Crash Gordon said:
... The phone is unlocked (Rogers) & I'm using it successfully on Consumer Cellular (AT&T).
...
So here's what I'd like to accomplish, prioritized:
1- Functioning hotspot
2- SPO2 sensor working in Samsung Health app
3- Root
Click to expand...
Click to collapse
I downloaded the latest AT&T firmware & it installed without any trouble. The hotspot works, the SPO2 sensor is back in Samsung Health. I'm going to pass on root for now. The phone now reports its model as SM-G960U1 instead of SM-G960W.