So i switched over to Tmobile this month and i'm struggling getting the 4GLTE data speeds. I did the APN settings trick and i really cant do much more that i know of. IM on the stock 4.3 ATT firmware and rooted using the Kingo method. I tried to install Safestrat 3.65 but i can get it working.. I could just install a Tmobile ROM if i could use a custom recovery but i havent found a way to do it without a softbrick. I've got less than 5Mbps down so thats crap..
Tmo, is not known for really good LTE speeds or coverage.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Incorrect T-Mobile when using a tmobile branded device has very strong lte speeds.
Yes the coverage can be spotty at times ... rarely!
The problem when using AT&T phone with T Mobile SIM cards is that the lte bands are always compatible.
The AT&T s4 does Carry four LTE bands I use it and get great LTE signal with tmobile service. ...only with the AT&T s4 for instance if you use an AT&T note 2 or s3 with T Mobile service it is really bad.
The reason behind The weak or dropped lte isnt really so much for about the bands it is actually how the device is tuned to work with that carriers service.
To get safestrap recovery working download the AT&T s4 safestrap recovery and install it. Just like in apk file just click install .
Everytime you power off or reboot the phone it will first come to safestrap screen then you choose to boot into recovery or continue to boot into the normal operating system by choosing the very bottom left menu button for recovery or the far right button to boot into the phone normal system .
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OP can't use SS on 4.3
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Yeah I already tried to use Safestrap knowing it may not be compatible. I even used wanam to set my phone into SeLinux permissive mode. The only thing i can think to try is to download the tmobile 4.3 firmware from sammobile but they keep saying their in a transition to a different download server and the firmware hasn't been moved yet.. anyone have the 4.3 tmobile firmware tar and modem for ODin? It should work because they are both same phone just modified through firmware. That would also give me wifi calling and some other good stuff
graydiggy said:
OP can't use SS on 4.3
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Do not use T-Mobile stock firmware. The modem and kernel will not work and you will not be able to flash the correct stuff. The firmwares are not the same.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 08:58 AM ---------- Previous post was at 08:56 AM ----------
Plus, the bootloaders are different so it won't flash anyways
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Yeah i tried anyway but my phone worked fine after, no data loss or anything. It didnt go to the tmobile firmware though unfortunately. I need to get to a tmobile ROM though and this restriction is killing me. HAs anyone found a working recovery for 4.3? Or is safe strap developing for it?
graydiggy said:
Do not use T-Mobile stock firmware. The modem and kernel will not work and you will not be able to flash the correct stuff. The firmwares are not the same.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 08:58 AM ---------- Previous post was at 08:56 AM ----------
Plus, the bootloaders are different so it won't flash anyways
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Wow is all I have to say
ROOTED ATT MK2 using Tapatalk
i'm not a noob and i knew the risks but i want the full tmobile experience hahaha I found better APN settings though that give me full LTE speeds for future reference:
http://www.4gtricks.com/2013/04/t-mobile-4g-apn-t-mobile-4g-apn-settings.html
jball said:
Wow is all I have to say
ROOTED ATT MK2 using Tapatalk
Click to expand...
Click to collapse
Why not trade for a tmobile phone? Then you'd have roms and an unlocked Bootloader.
Sent from my SGH-I337 using Tapatalk
Related
I flashed an international firmware on a Sprint S4, not knowing that it breaks root and custom recovery. I also lost my 4G. I can fix everything except the 4G. No idea how to begin, any idea?
Sent from my SPH-L720 using xda app-developers app
Denomenance said:
I flashed an international firmware on a Sprint S4, not knowing that it breaks root and custom recovery. I also lost my 4G. I can fix everything except the 4G. No idea how to begin, any idea?
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
Well you can begin by going to Sammobile and download the carrier's stock firmware. Flash it via odin. Stay on stock until you figure out how to fix 4G on custom roms.
Good luck, Im sure you'd be able fix it by flashing stock rom
Have you tried fishing the Sprint modem?
Sent from my GT-I9505 using xda premium
chickentuna said:
Well you can begin by going to Sammobile and download the carrier's stock firmware. Flash it via odin. Stay on stock until you figure out how to fix 4G on custom roms.
Good luck, Im sure you'd be able fix it by flashing stock rom
Click to expand...
Click to collapse
Alright, i'm about to attempt that, thanks!
sxi200 said:
Have you tried fishing the Sprint modem?
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
Sprint Modem? Can you go a bit more in detail please?
Indie offers an "EnableLTE.zip in the i9505 Omega Thread
This maybe fix the problem, OR AT WORST BRICK YOUR DEVICE
Honestly i have no idea if this works, so be careful.
Indie or another skilled person should know of this fix the LTE bug on your Sprint S4.
Denomenance said:
Sprint Modem? Can you go a bit more in detail please?
Click to expand...
Click to collapse
The modem is part of any full firmware and is usually different for each provider, region etc.
I believe the US lte frequencies are different to most of the other countries so if you don't have the correct modem your phone may be looking for the wrong frequency.
Try this link: http://www.rwilco12.com/downloads.php?dir=Files/Devices/Samsung Galaxy S4 (SPH-L720)/Modems
Flash the .tar file in odin in the phone section.
Edit: just remembered when the first ipad to have lte was released in Australia, Apple and resellers got into big trouble for marketing it as lte/4g. This was because although it was lte it didn't actually work with Australian lte frequencies. So as I mentioned above you will need a US modem. That's my best bet to get it going again.
Sent from my GT-I9505 using xda premium
sxi200 said:
The modem is part of any full firmware and is usually different for each provider, region etc.
I believe the US lte frequencies are different to most of the other countries so if you don't have the correct modem your phone may be looking for the wrong frequency.
Try this link: http://www.rwilco12.com/downloads.php?dir=Files/Devices/Samsung Galaxy S4 (SPH-L720)/Modems
Flash the .tar file in odin in the phone section.
Edit: just remembered when the first ipad to have lte was released in Australia, Apple and resellers got into big trouble for marketing it as lte/4g. This was because although it was lte it didn't actually work with Australian lte frequencies. So as I mentioned above you will need a US modem. That's my best bet to get it going again.
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
Flashed it successfully, yet no 4g. Could it be that I need to flash a different firmware?
Denomenance said:
Flashed it successfully, yet no 4g. Could it be that I need to flash a different firmware?
Click to expand...
Click to collapse
Maybe check that lte is selected in network settings and you have your apn set correctly.
Sent from my GT-I9505 using xda premium
sxi200 said:
Maybe check that lte is selected in network settings and you have your apn set correctly.
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
I did, yet no dice. Would flashing a stock firmware replace the modem?
Sent from my SPH-L720 using xda app-developers app
Denomenance said:
I did, yet no dice. Would flashing a stock firmware replace the modem?
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
Please reflash your official stock firmware.
Sent from my GT-I9500
Sent from my SGH-M919 using xda app-developers app
I would highly not suggest it, unless you like to open cans of worms and pull your hair out or possibly have a phone that doesn't operate like it should.
oscarthegrouch said:
I would highly not suggest it, unless you like to open cans of worms and pull your hair out or possibly have a phone that doesn't operate like it should.
Click to expand...
Click to collapse
The reason I ask is because you can use att Gs4 roms and the International 9505 model on the tmobile Gs4. Thanks
Sent from my SGH-M919 using xda app-developers app
xda23 said:
The reason I ask is because you can use att Gs4 roms and the International 9505 model on the tmobile Gs4. Thanks
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
You can flash.. its been awhile since I've done it on my sprint s4 just because I had data issues with other carriers roms. But u can do it just have to flash a tmo kernel I think..
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xda23 said:
The reason I ask is because you can use att Gs4 roms and the International 9505 model on the tmobile Gs4. Thanks
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
It's because they're all basically the same phone. LTE gsm S4. We are CDMA. So you would run into a lot of problems. Data being one of if not the biggest.
xda23 said:
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Don't do it, two different cell technologies (Sprint/CDMA vs. T-Mobile GSM), raises likelihood of ending up with a brick.
Joshmccullough said:
Don't do it, two different cell technologies (Sprint/CDMA vs. T-Mobile GSM), raises likelihood of ending up with a brick.
Click to expand...
Click to collapse
You can flash verizon and sprint roms on a tmobile note 2 just by flashing tmobile baseband after the rom...I don't see why it wouldn't work on s4
Sent from my SPH-L720 using xda app-developers app
gotablunt said:
You can flash verizon and sprint roms on a tmobile note 2 just by flashing tmobile baseband after the rom...I don't see why it wouldn't work on s4
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
Can someone explain how it is done please..
I want to use my unlocked Sprint Galaxy s4 with Mexico Movistar GSM network
I found a rom here
http://www.sammobile.com/firmwares/3/?download=17586
http://www.sammobile.com/firmwares/2/
I chose Galaxy s4
Mexico Movistar
this is the download link
http://www.hotfile.com/dl/239464457/...1_TMM.zip.html
Latest firmware info
GT-I9500 Galaxy S 4
PDA: I9500UBUBMG1
CSC: I9500TFGBMG1
MODEM: I9500VSUBMG1
Added: 2013-07-28
Click to expand...
Click to collapse
it is a big zip file with
\FACTORY_I9500UBUBMG1_I9500TFGBMG1_TMM.zip
2013-07-31 05:39 2170970 1242766 BOOTLOADER_I9500UBUBMG1_1002623_REV00_user_low_ship.tar.md5
2013-07-31 05:39 2266972244 1506303198 CODE_I9500UBUBMG1_1002623_REV00_user_low_ship.tar.md5
2013-07-31 05:40 16005200 5656733 MODEM_I9500VSUBMG1_REV01_CL1331687_SIGNED.tar.md5
2013-07-31 05:40 182650967 104501747 CSC_TFG_I9500TFGBMG1_1002623_REV00_user_low_ship.tar.md5
2013-07-31 05:42 1677312 796028 SS_DL.dll
#
# Total Size Packed Files
# 2469476693 1618500472 5
Click to expand...
Click to collapse
Do I use recovery to install this ROM? copying the file to my phone and running it with recovery failed...
doctorman said:
Can someone explain how it is done please..
I want to use my unlocked Sprint Galaxy s4 with Mexico Movistar GSM network
I found a rom here
it is a big zip file with
Do I use recovery to install this ROM? copying the file to my phone and running it with recovery failed...
Click to expand...
Click to collapse
Those are TARs. You DO NOT flash those in recovery. Only through Odin.
Sent from my SPH-L720 using Tapatalk
daniel4653 said:
Those are TARs. You DO NOT flash those in recovery. Only through Odin.
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
so which ones do I need to odin to get the sprint galaxy s4 (L720) work on GSM Galaxy S4 Movistar in mexico?
So I've read the stickies and posted in the forum but I need yk see if anyone can help me out with LTE. I have att service on a stock non rooted n4 I've dialed *#*#4636#*#* changed my network type but it doesn't stick so I can't select lte in my settings and I'm not getting it regardless of my APN settings ... Anyone have any ideas of what's going on outside of rooting and flashing a different modem or radio .. Any help is appreciated ... Thanks
Sent from my Nexus 4 using xda app-developers app
You need to flash a hybrid radio unless you never updated past stock 4.2.1,
newer radioes have the code disabled since it hasnt been approved by the FCC for LTE
JReeher said:
So I've read the stickies and posted in the forum but I need yk see if anyone can help me out with LTE. I have att service on a stock non rooted n4 I've dialed *#*#4636#*#* changed my network type but it doesn't stick so I can't select lte in my settings and I'm not getting it regardless of my APN settings ... Anyone have any ideas of what's going on outside of rooting and flashing a different modem or radio .. Any help is appreciated ... Thanks
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
The Nexus 4 does not support all of the AT&T LTE bands. It lacks the most commonly used LTE bands for AT&T and therefore can only be used in a couple of cities. If you do live in one of those cities, you need to unlock the bootloader and flash a hybrid radio.
OK I've been reading and I'm a little confused is there a solid working root and bootloader unlock for 4.4.2 ?
Sent from my Nexus 4 using xda app-developers app
JReeher said:
OK I've been reading and I'm a little confused is there a solid working root and bootloader unlock for 4.4.2 ?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Never mind this I have found a few solid working methods sorry
Sent from my Nexus 4 using xda app-developers app
lopezk38 said:
The Nexus 4 does not support all of the AT&T LTE bands. It lacks the most commonly used LTE bands for AT&T and therefore can only be used in a couple of cities. If you do live in one of those cities, you need to unlock the bootloader and flash a hybrid radio.
Click to expand...
Click to collapse
If I root and unlock can I flash any radio even if I'm on 4.4.2
Sent from my Nexus 4 using xda app-developers app
JReeher said:
If I root and unlock can I flash any radio even if I'm on 4.4.2
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
You can flash any baseband (aka radio) you want but, in order for LTE to work, you will need to flash a hybrid radio. For 4.4.2, you would need radio version .98 or .97
There was a recently released app that makes installing or changing either the hybrid or stock radios extremely easy. I used to use the manual method until this came along:
http://forum.xda-developers.com/nexus-4/themes-apps/app-nexus-4-modem-flasher-lte-enabler-t2607221
As was also mentioned, AT&T Band 4 is not available in too many areas, so don't be surprised if you never get LTE.
I'm looking to flash custom Recovery's and what not. I just got the phone 5/2/14. The SGH-I337 on AT&T. Got the phone with 4.4.2 kk. Updated when update was available. Wanted to know if I could use Odin to flash things like any other Samsung phone.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
You can not flash a custom recovery. The bootloader is locked. If you want to flash custom roms look in the general forum. Look for " index all things mk2 nb1"
Sent from my Nexus 5 using XDA Free mobile app
OK can you unlock the boot loader at all?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
iTzz_KAMIKAZE said:
OK can you unlock the boot loader at all?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
No
Sent from my Nexus 5 using XDA Free mobile app
OK and I was looking through the forums and searching through them and found nothing for root or recovery of nc1.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
iTzz_KAMIKAZE said:
OK and I was looking through the forums and searching through them and found nothing for root or recovery of nc1.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Start here and read it all about 6 times. Rooting and putting a rom on the i337 with mk2 or nb1 is not for the faint of heart. http://forum.xda-developers.com/showthread.php?p=49562527
Sent from my SAMSUNG-SGH-I727 using XDA Free mobile app
---------- Post added at 09:27 PM ---------- Previous post was at 09:25 PM ----------
jd1639 said:
Start here and read it all about 6 times. Rooting and putting a rom on the i337 with mk2 or nb1 is not for the faint of heart. http://forum.xda-developers.com/showthread.php?p=49562527
Sent from my SAMSUNG-SGH-I727 using XDA Free mobile app
Click to expand...
Click to collapse
Edit, follow the same steps for nc1 as nb1
Sent from my SAMSUNG-SGH-I727 using XDA Free mobile app
OK wjatvandroid version is nb1?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
iTzz_KAMIKAZE said:
OK wjatvandroid version is nb1?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
It's 4.4.2. Mk2, nb1, and nc1 are just some att revisions of 4.4.2
Sent from my SAMSUNG-SGH-I727 using XDA Free mobile app
*What version
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Oh ok
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
I'm on the same situation, just got my phone from AT&T (SGH-i337) with 4.4.2, now on baseband NC1, I would like to root the phone and it seems the only way is downgrading to NB1 and then downgrade again to MK2.
But I'm not so sure if it's safe to flash the roms having a SIM lock on my phone, is it necessary to unlock it before trying to flash?
Another noob question, a locked bootloader means I can't get CWM, but can I still install custom roms installable through Odin?
Sorry, No custom ROM's for locked bootloaders.
gtluis said:
I'm on the same situation, just got my phone from AT&T (SGH-i337) with 4.4.2, now on baseband NC1, I would like to root the phone and it seems the only way is downgrading to NB1 and then downgrade again to MK2.
But I'm not so sure if it's safe to flash the roms having a SIM lock on my phone, is it necessary to unlock it before trying to flash?
Another noob question, a locked bootloader means I can't get CWM, but can I still install custom roms installable through Odin?
Click to expand...
Click to collapse
Nope. The only way to get a custom ROM would be to use safestrap.
rgrbckr said:
Nope. The only way to get a custom ROM would be to use safestrap.
Click to expand...
Click to collapse
What about the SIM lock? Do I need to get my phone SIM unlocked before flashing a stock ROM?
gtluis said:
What about the SIM lock? Do I need to get my phone SIM unlocked before flashing a stock ROM?
Click to expand...
Click to collapse
I would sim unlock before flashing a custom rom, a stock rom, flashed via odin is fine
Sent from my Nexus 5 using XDA Free mobile app
It shouldn't matter
gtluis said:
What about the SIM lock? Do I need to get my phone SIM unlocked before flashing a stock ROM?
Click to expand...
Click to collapse
Sim Locking only restricts your phone to a particular carrier, it wouldn't interfere with a custom rom, as long as said rom was built for your carrier.
rgrbckr said:
Sim Locking only restricts your phone to a particular carrier, it wouldn't interfere with a custom rom, as long as said rom was built for your carrier.
Click to expand...
Click to collapse
So that means I can use any SGH-i337 specif roms but not the i9505 ones, right?
sort of
gtluis said:
So that means I can use any SGH-i337 specif roms but not the i9505 ones, right?
Click to expand...
Click to collapse
It needs be compatible with your carrier and safestrap too Check out the saestrap posts, they'll give you a full run down.
I flashed a tmobile rom and it boots made a call recieved a text but no Lte or 3g if a dev could figure out how to get data working it means more roms for us
Sent from my SM-N910P using XDA Free mobile app
S Health fcs also trying out an international ROM to see if it boots
Sent from my SM-N910P using XDA Free mobile app
Sorry forgot to mention used AEL kernel from this thread http://forum.xda-developers.com/showthread.php?t=2917941
Based off T-Mobile firmware but allows ROM to boot for those who tried and got bootloop
Well this can be really good cause their devs and ours can work together.
duvalbmarley said:
Sorry forgot to mention used AEL kernel from this thread http://forum.xda-developers.com/showthread.php?t=2917941
Based off T-Mobile firmware but allows ROM to boot for those who tried and got bootloop
Click to expand...
Click to collapse
Have you tried this in stock sprint rom ? Thinking of giving it a shot.
---------- Post added 31st October 2014 at 12:03 AM ---------- Previous post was 30th October 2014 at 11:57 PM ----------
pantmunu said:
Have you tried this in stock sprint rom ? Thinking of giving it a shot.
Click to expand...
Click to collapse
I mean the kernel .
Yes I flashed it and no signal or data on stock sprint rom
Sent from my SM-N910P using XDA Free mobile app
Try flashing the stock sprint kernel. You probably need to change the build.prop to get data to work.
I was thinking the samething. Build props.
Why why would you do this?
Sprint kernel ROM won't boot
Sent from my SM-N910P using XDA Free mobile app
Dirty flashed T-Mobile ROM over sprint ROM and data works so I guess it was just an apn issue so we can use Tmobile ROMs
Sent from my SM-N910T using XDA Free mobile app
Hotspot works also I'm using dynamic kat ROM nice boot screen fast and smooth rom
Sent from my SM-N910T using XDA Free mobile app
Those having issues with data might need to reflash sprint modem downloading and tryin now i kno with the note 2 flashing roms from other carriers was pretty common as long as u reflashed modem and kernel after
duvalbmarley said:
Hotspot works also I'm using dynamic kat ROM nice boot screen fast and smooth rom
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
You could use another sim tmobil¿ which ROM did you use?
Flash the stock sprint apns-conf, that's what we do on the S5 to flash other carrier roms and get cellular working.
So is there a way to mod the rom zip so it flashes right the first time with no extra steps?
No mod and once u get data working u cant make calls hopefully a dev will come up with a mod
Sent from my SM-N910P using XDA Free mobile app
only way this is going to work is if we can do some sort of build prop edit, you either get talk/text, or you get data, You guys have to remember only the sprint variant is triband.
Does anyone have a link to sprint modems that are available to flash
if you use other carrier Rom, kernel or radio this phone can be sim unlocked?
mohica10 said:
if you use other carrier Rom, kernel or radio this phone can be sim unlocked?
Click to expand...
Click to collapse
That shouldn't have any thing to do with unlocking as that is a firmware (modem) thing.
I know were all anxious to flash roms but doing stupid sh?t like this will cause problems later down the road for you dirty flashers. Then our sprint threads will be bogged down with noob-like questions because of noob-like actions. This is a new phone, new forum.... Just be patient so we dont have a 2000 page plus threads over small stuff. Ffs...