Hi all! When I got my phone I was able to use LTE 4G on it, and when I rooted and installed a ROM, I was only able to use H+ (maximum). Which is really slow. I've tried different kernels and roms but no success. Now I have the Original Unrooted Samsung Firmware (Hungary/ BASEBAND: I9505XXUDMHA /ANDROID 4.2.2) Please help me!:'( Thank's
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Hi
I´ve just flashed this rom, and everything seemed to be good. But after a few hours mobile Network keeps changing to 3g from 4g. Then i can manually change it Again but right after it goes back to 3g.
Is there a LTE-fix to this rom or have i done anything wrong....?
Regards
Kongees
ok here it is. i've flashed various roms but don't really know what everything is, i just followed all those insturctions but never bricked my device..
I live in China, use 3g mobile internet, my phone is korean note2(shv-e250l), use slimkat 4.4.2 nightly, bandwidth MI1, kernel thor 2.9.
i've been using these for about 1 month, and there was not any big problems, except that it feels like my signal strength or internet speed isn't as good as stock rom
but yesterday, when I hung up after calling my friend, all of sudden my phone can't read my sim card, so i reboot the device, and my mobile network doesn't work, and i reboot again, finally everything works.
after that, everytime i call someone my phone goes stupid and i have to reboot it twice.
and I started to wonder, does my bandwidth need to be updated? can I use newest stock rom's bandwidth?
newest stock rom of korean note2 is NA1, will using its bandwidth solve my problem?
if it does the magic, how do i apply bandwidth of NA1 to my phone?
HELP ME.............
Hi, I have an S4 that I got from rogers (i337m). When I initially rooted it I was running cyanogen mod ROM but I had around 5 GB of storage missing. I read from somewhere that going back to stock would fix this problem. I used Odin and followed a guide and went to stock 4.2.2. However, now my WiFi and LTE is not working and I'm having trouble making calls.
Hi,
Currently I have a i337 galaxy s4 which I am using with tmobile sim card. I made it unlocked by ATT before I switched to tmobile. It has baseband UFNI1 and Android 4.4.2 installed. I managed to get it rooted using the Odin software, so I can use the tethering with the tmobile.
Now I am trying to find a way to use the Wi-Fi calling. I searched it a lot and figured out that I need a tmobile rom installed but it quickly got very confusing. It looks like what you need to do also depends on what android version you are using. For some you need safestrap, change the kernel for some you don't. For some you have Wi-Fi issues and need to change the modem etc.
So, I am trying to find the easiest and safest way that will make the Wi-Fi calling work. I don't necessarily need the very latest android version or the fancy custom roms etc,I only need something that will work without any issues. I am perfectly fine with a tmobile stock Rom if that's the most convenient way.
So,I would really appreciate if someone can help me on this. It would be great to have a set of noob friendly instructions. Thanks a lot.
froteros said:
Hi,
Currently I have a i337 galaxy s4 which I am using with tmobile sim card. I made it unlocked by ATT before I switched to tmobile. It has baseband UFNI1 and Android 4.4.2 installed. I managed to get it rooted using the Odin software, so I can use the tethering with the tmobile.
Now I am trying to find a way to use the Wi-Fi calling. I searched it a lot and figured out that I need a tmobile rom installed but it quickly got very confusing. It looks like what you need to do also depends on what android version you are using. For some you need safestrap, change the kernel for some you don't. For some you have Wi-Fi issues and need to change the modem etc.
So, I am trying to find the easiest and safest way that will make the Wi-Fi calling work. I don't necessarily need the very latest android version or the fancy custom roms etc,I only need something that will work without any issues. I am perfectly fine with a tmobile stock Rom if that's the most convenient way.
So,I would really appreciate if someone can help me on this. It would be great to have a set of noob friendly instructions. Thanks a lot.
Click to expand...
Click to collapse
Hi There,
Were you able to root your device for Wifi Calling. I followed the instructions of http://forum.xda-developers.com/gal...nvert-i337-to-m919-wifi-caling-t2896719/page6 and went into the same issue. After TMOBILE stock rom, the phone does not boot. I was able to install the first rom and then able to get onto the latest version and able to use phone again with AT&T latest software update (android 5.0.1). Actually, this is the version I have when I started rooting.
If you find any solution, please let me know as I am on the same boat with you on installing TMOBILE ROM using the other thread.
thanks
Ram
You cannot install a T-Mobile stock ROM to an AT&T device. Samsung has safeguards in place to prevent it. You would need to root and then install a custom ROM, which on an AT&T is difficult to do with its encrypted bootloader.
However, this is not the appropriate location to ask this. Questions related to AT&T devices belong in the AT&T S4 forums.
Hello All,
I have a samsung galaxy s4 i337m in canada using the rogers netowork. Ive been using customs roms shortly after i got this phone. Ive used samsung rom, original, GPE but eventually settled on Cyanogenmod. I use TWRP for the i9505 which allows me to use any rom (since CM12 doesnt have a build for the i337m, and other builds wont flash in a i337m TWRP).
Anyway ive been using CM 12.1 with a i9505 build for some time, and it works great. I had to update my modem to the NI2 build to get it to work, but its been working flawless ever since.
Now to my problem, buddy has an S4, same model, same carrier. He claims he needs a new phone and i beg to differ. I rooted, installed twrp (i9505)and cm12.1 (i9505). works great, however no network connectivity. I remember i need a new modem, try the same one that works with mine....nothing... try a different one.... nothing. calls and SMS, but not data of any speed.
Reverting to kitkat roms results in it working perfectly (multiple modems). both from his original Nandroid and CM 11. All lollipop roms seems to have the same issue, no mobile data. Wifi works fine. No issues with SIM card, switched them between the two phones and confirmed its HIS phone with the issue.
Im a little puzzled, can someone recommend a modem to load? should I try to use TWRP an CM12 for the ATT variant/ different variant? I want to help him but this is making me look amateur (even if its true).
Thanks ahead of time.