I bought a used ATT I317 for use on T-mobile network. Just got everything set up, had to flash the J2 modem in order to work around the unlock. Without any further tinkering, it looks like I am getting access to the 4G network via notification (no indication of access to LTE) but getting highest speeds of about 10.25 Mbps down 2.5 up, and lower speeds of 3 Mbps down. I'm wondering if an updated ATT modem would remedy this problem or if I should get a T-mobile based ROM and flash the updated T889 modem to it?
Many of the posts I have come across are older and I believe before the tower integration. Not sure if it is necessary to go further in modem modification or do the AWS band work around. I have my phone rooted and plan to try out different ROMs, especially cyanogen and DittoNote 3, would it work better for me to access the T889 bands from variants of those, or other ROMs?
hexagonation said:
I bought a used ATT I317 for use on T-mobile network. Just got everything set up, had to flash the J2 modem in order to work around the unlock. Without any further tinkering, it looks like I am getting access to the 4G network via notification (no indication of access to LTE) but getting highest speeds of about 10.25 Mbps down 2.5 up, and lower speeds of 3 Mbps down. I'm wondering if an updated ATT modem would remedy this problem or if I should get a T-mobile based ROM and flash the updated T889 modem to it?
Many of the posts I have come across are older and I believe before the tower integration. Not sure if it is necessary to go further in modem modification or do the AWS band work around. I have my phone rooted and plan to try out different ROMs, especially cyanogen and DittoNote 3, would it work better for me to access the T889 bands from variants of those, or other ROMs?
Click to expand...
Click to collapse
yeah first do the latest modem and then the aws mod.
because each time you flash any kind of modem you need to re do the mod
Ah okay thanks. So I should put the latest ATT modem on there and with the AWS mod it should take care of all of my 4G and LTE issues? Then on top of that I should be able to flash any ROM without issue?
Do you happen to have a link to the latest i317 modem?
hexagonation said:
I bought a used ATT I317 for use on T-mobile network. Just got everything set up, had to flash the J2 modem in order to work around the unlock. Without any further tinkering, it looks like I am getting access to the 4G network via notification (no indication of access to LTE) but getting highest speeds of about 10.25 Mbps down 2.5 up, and lower speeds of 3 Mbps down. I'm wondering if an updated ATT modem would remedy this problem or if I should get a T-mobile based ROM and flash the updated T889 modem to it?
Many of the posts I have come across are older and I believe before the tower integration. Not sure if it is necessary to go further in modem modification or do the AWS band work around. I have my phone rooted and plan to try out different ROMs, especially cyanogen and DittoNote 3, would it work better for me to access the T889 bands from variants of those, or other ROMs?
Click to expand...
Click to collapse
yeah first do the latest modem and then the aws mod.
because each time you flash any kind of modem you need to re do the mod
is the UCUBMK6 the current i317 modem? and will the CWM file work on TWRP? (i317-cwm-ucubmk6-modem.zip, from http://forum.xda-developers.com/showthread.php?t=2589891). If its not current, I haven't been able to find whatever is the most up to date modem
hexagonation said:
is the UCUBMK6 the current i317 modem? and will the CWM file work on TWRP? (i317-cwm-ucubmk6-modem.zip, from http://forum.xda-developers.com/showthread.php?t=2589891). If its not current, I haven't been able to find whatever is the most up to date modem
Click to expand...
Click to collapse
yup this the latest and it should work with twrp
Related
Hello all.. I just purchased a unlocked note 2 from at&t from good 'ol craigslist lol... I have it flashed now to stock 4.1.2 with root. I plan to use this phone on t-mobile, and read forums about how you have to enable aws on the phone to get 3g/4g for their network. I also want to use this phone in the future for international use, as well as at&t's 4g and lte network. By changing the aws file, will I be able to achieve this?
Also in order to use call over wifi, I have to flash a tmobile rom as told by members on the forums, but there's also an international rom http://forum.xda-developers.com/showthread.php?t=2016575 here, will this rom already have the aws band enabled or do I still need to enable it? I know it's kind of a lot to ask for a rom that covers everything, but what is the closest to it? Would using a tmobile stock rom hurt me in anyways?
You're posting in the wrong section, but I'll answer you anyways.
1. The AWS mod is independent from everything else, except modem flashes. Meaning no matter what you flash, unless you're flashing a modem, the mod will stick (remain functional).
2. All the mod does is enable the AWS band that is natively supported by the phone, but AT&T purposely disabled. It doesn't disable any functionality. The file itself is a modem memory (very very low level) backup from a T-Mobile model, with the IMEI removed so that yours does not get overwritten. It flips an internal switch to enable AWS support, just like the T-Mobile model. Aside from lack of wireless charging on the T-Mobile model, the AT&T and T-Mobile models are identical. This mod just turns on something that was artifically disabled. Your phone will work on both T-Mobile and AT&T (2G, 3G, 4G, LTE) perfectly.
3. Wifi calling is built into the ROM. It's only available on T-Mobile ROMs. You can flash an international ROM but you won't have Wifi calling. I can verify this as I'm using an international ROM.
The only things to watch out for:
1) ONLY FLASH AT&T MODEMs. And when you do (even if you're reflashing the same one that's on your phone), you have to reapply the mod. If you accidentally flash a different modem (say a T-Mobile modem), you'll lose your IMEI temporarily and your phone will reboot every few minutes until you flash back an AT&T modem. Don't freak out.
2) AT&T and T-Mobile ROMs are intercompatible across both models. But again, only use the modem for your device.
Please read forum rules before posting
Questions and Help issues go in Q&A and Help section
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator
Product F(RED) said:
You're posting in the wrong section, but I'll answer you anyways.
1. The AWS mod is independent from everything else, except modem flashes. Meaning no matter what you flash, unless you're flashing a modem, the mod will stick (remain functional).
2. All the mod does is enable the AWS band that is natively supported by the phone, but AT&T purposely disabled. It doesn't disable any functionality. The file itself is a modem memory (very very low level) backup from a T-Mobile model, with the IMEI removed so that yours does not get overwritten. It flips an internal switch to enable AWS support, just like the T-Mobile model. Aside from lack of wireless charging on the T-Mobile model, the AT&T and T-Mobile models are identical. This mod just turns on something that was artifically disabled. Your phone will work on both T-Mobile and AT&T (2G, 3G, 4G, LTE) perfectly.
3. Wifi calling is built into the ROM. It's only available on T-Mobile ROMs. You can flash an international ROM but you won't have Wifi calling. I can verify this as I'm using an international ROM.
The only things to watch out for:
1) ONLY FLASH AT&T MODEMs. And when you do (even if you're reflashing the same one that's on your phone), you have to reapply the mod. If you accidentally flash a different modem (say a T-Mobile modem), you'll lose your IMEI temporarily and your phone will reboot every few minutes until you flash back an AT&T modem. Don't freak out.
2) AT&T and T-Mobile ROMs are intercompatible across both models. But again, only use the modem for your device.
Click to expand...
Click to collapse
Thank you for this clear response! What will flashing the modem do for me, as far as advantages than the stock? I am not planning to do massive overhaul on this device, I just want it to be compatible with every carrier including it's data! Also when performing this aws mod, do I need to manually change any apn settings, or will it automatically be picked up by the phone?
xterminater07 said:
Thank you for this clear response! What will flashing the modem do for me, as far as advantages than the stock? I am not planning to do massive overhaul on this device, I just want it to be compatible with every carrier including it's data! Also when performing this aws mod, do I need to manually change any apn settings, or will it automatically be picked up by the phone?
Click to expand...
Click to collapse
Nothing really. Sometimes a new modem will improve power consumption or data speeds. Sometimes it'll do the opposite and you'll want to flash back the old modem. And if you don't care, you rarely ever have to do anything. The modems are stock modems btw. They're extracted from official OTA updates so that you can use them on any ROM. As for APN settings, they may or may not be automatically set by the SIM. If I remember correctly my T-Mobile SIM automatically set it up. It's not hard to do though.
By the way, all AT&T LTE devices work with T-Mobile LTE out of the box. This mod just enables it for 3G ("4G").
Sent from my Galaxy Note 2
Product F(RED) said:
Nothing really. Sometimes a new modem will improve power consumption or data speeds. Sometimes it'll do the opposite and you'll want to flash back the old modem. And if you don't care, you rarely ever have to do anything. The modems are stock modems btw. They're extracted from official OTA updates so that you can use them on any ROM. As for APN settings, they may or may not be automatically set by the SIM. If I remember correctly my T-Mobile SIM automatically set it up. It's not hard to do though.
By the way, all AT&T LTE devices work with T-Mobile LTE out of the box. This mod just enables it for 3G ("4G").
Sent from my Galaxy Note 2
Click to expand...
Click to collapse
Ok i flashed the aws file but i only got edge speed! How do i manually change it to get lte or 4g
Edit 1.... Ok so it connected to 4G like 5-10 min later!! Also what is the main differences for an international labeled rom vs the tmobile rom for the att version? I mean since my phone is already unlocked, and have this aws mode enabled there's not a need for an international rom right?
POSTED IN ANY QUESTION THREAD - CAN DELETE THIS AND PLEASE REPLY TO MY Q THERE THANKS - SAME Q JUST FIGURED EASIER TO POST IT THERE
Have a stock non-unlocked (no unlock) at&t phone with 4.2 android.
Could I use the 4.3 "no-knox" modem.bin I see in these forums that's for t-mobile and just ODIN it over top of the at&t 4.2 modem (mdl modem for at&t that came on the phone when it was purchased) and then use CWM to install a t-mobile rom and have the phone work under t-mobile?
drtechnology said:
POSTED IN ANY QUESTION THREAD - CAN DELETE THIS AND PLEASE REPLY TO MY Q THERE THANKS - SAME Q JUST FIGURED EASIER TO POST IT THERE
Have a stock non-unlocked (no unlock) at&t phone with 4.2 android.
Could I use the 4.3 "no-knox" modem.bin I see in these forums that's for t-mobile and just ODIN it over top of the at&t 4.2 modem (mdl modem for at&t that came on the phone when it was purchased) and then use CWM to install a t-mobile rom and have the phone work under t-mobile?
Click to expand...
Click to collapse
Just because someone else is going to find this thread and start getting ideas...
NO!!!!
No one should EVER do this. Never flash a modem that was not SPECIFICALLY made for your SPECIFIC device.
Skipjacks said:
Just because someone else is going to find this thread and start getting ideas...
NO!!!!
No one should EVER do this. Never flash a modem that was not SPECIFICALLY made for your SPECIFIC device.
Click to expand...
Click to collapse
Ok so tell me please what you mean? Do you mean specific device hardware or ???
Because the only difference I see in the 2 phones, At&t S4 and T-Mobile S4 is all in the software for modem and rom. They are 100% identicle in hardware, even being factory set for bands both carriers use. I would never attempt this on Verizon or Sprint S$'s lol - but I am cinfused other than a different modem bin file and different rom, and different model number since its 2 diff companies, what is the difference?
I am confused.
If I cannot do what I noted, then how does one use an at&t phone on a t-mobile network? I am great at flashing modems, roms, recoveries - but my 1st time switching carriers on an exact same model phone. The phone itself is same model far as samsung makes it - only changes to different model when its branded at&t ot t-mobile and uses that companies rom and mode,m files. But isnt the hardware the exact same both places and couldn't the rom and modem files be swapped to allow it to work on the other one's system?
Please help what I need to do - if I cannot do what I asked about then what?
re: tmobile-att
drtechnology said:
Ok so tell me please what you mean? Do you mean specific device hardware or ???
Because the only difference I see in the 2 phones, At&t S4 and T-Mobile S4 is all in the software for modem and rom. They are 100% identicle in hardware, even being factory set for bands both carriers use. I would never attempt this on Verizon or Sprint S$'s lol - but I am cinfused other than a different modem bin file and different rom, and different model number since its 2 diff companies, what is the difference?
I am confused.
If I cannot do what I noted, then how does one use an at&t phone on a t-mobile network? I am great at flashing modems, roms, recoveries - but my 1st time switching carriers on an exact same model phone. The phone itself is same model far as samsung makes it - only changes to different model when its branded at&t ot t-mobile and uses that companies rom and mode,m files. But isnt the hardware the exact same both places and couldn't the rom and modem files be swapped to allow it to work on the other one's system?
Please help what I need to do - if I cannot do what I asked about then what?
Click to expand...
Click to collapse
If the two phones ATT i337 and Tmobile M919 were as identical as you say they are and even use the same bands then
why is the gsm baseband (modem.bin) and the lte modem (non-hlos.bin) different enough not to be interchangeable?
Not even the STOCK 4.3 firmware or any of the zipfile custom roms here in xda are not identical enough
so we would not need to have two different and separate forums for these two phones.
First thing you need to do is to get your phone on the Tmobile network is to unlock it or have it unlocked.
Then you need to get a tmobile sim card and root the phone if it's not already rooted.
You will also need to flash cf-autoroot to root the phone and then flash a custom recovery like cwm or twrp.
Then last but not least you will need to flash a Tmobile custom rom from the Tmobile M919 forum.
None of the custom roms found here in xda contain modem.bin or hlos-bin images.
Those you already have in your phone will work fine even though they are NOT identical.
The two .bin images are setup so the two networks can establish GSM and LTE communications
between your phone and their towers using different bands and different frequencies.
Good luck.
Misterjunky said:
If the two phones ATT i337 and Tmobile M919 were as identical as you say they are and even use the same bands then
why is the gsm baseband (modem.bin) and the lte modem (non-hlos.bin) different enough not to be interchangeable?
Not even the STOCK 4.3 firmware or any of the zipfile custom roms here in xda are not identical enough
so we would not need to have two different and separate forums for these two phones.
First thing you need to do is to get your phone on the Tmobile network is to unlock it or have it unlocked.
Then you need to get a tmobile sim card and root the phone if it's not already rooted.
You will also need to flash cf-autoroot to root the phone and then flash a custom recovery like cwm or twrp.
Then last but not least you will need to flash a Tmobile custom rom from the Tmobile M919 forum.
None of the custom roms found here in xda contain modem.bin or hlos-bin images.
Those you already have in your phone will work fine even though they are NOT identical.
The two .bin images are setup so the two networks can establish GSM and LTE communications
between your phone and their towers using different bands and different frequencies.
Good luck.
Click to expand...
Click to collapse
Thanks Got her phone working ok. So the key was if unlocked, the at&t phone will work on t-mobile even with an at&t modem file on it I knew the 2 companies could be used on the other's network just did not know the modem file works both ways if unlocked. I assumed the hardware is the same on both phones so just flash a tmobile modem lol - I learned I was wrong thanks for ur help. Years of rooting and never had an issue with using one carrier on another carrier's network, was my 1st time
Thanks a lot for your help. Its working great now!
So I have am using already a T-Mobile S4 (m919) on At&t's network... I have already rooted it, flashed Hyperdrive, entered the correct APN, and it works basically well...
Here is what I am wondering, my signal strength seems to be not the best and it makes me wonder, is there a modem, baseband I can flash on the T-mobile version of the S4 that could possibly help it work better on the At&t network... and do so with out making my S4 a paper weight?
abovenbeyond said:
So I have am using already a T-Mobile S4 (m919) on At&t's network... I have already rooted it, flashed Hyperdrive, entered the correct APN, and it works basically well...
Here is what I am wondering, my signal strength seems to be not the best and it makes me wonder, is there a modem, baseband I can flash on the T-mobile version of the S4 that could possibly help it work better on the At&t network... and do so with out making my S4 a paper weight?
Click to expand...
Click to collapse
Any M919 modem. MKL is the newest.
abovenbeyond said:
So I have am using already a T-Mobile S4 (m919) on At&t's network... I have already rooted it, flashed Hyperdrive, entered the correct APN, and it works basically well...
Here is what I am wondering, my signal strength seems to be not the best and it makes me wonder, is there a modem, baseband I can flash on the T-mobile version of the S4 that could possibly help it work better on the At&t network... and do so with out making my S4 a paper weight?
Click to expand...
Click to collapse
Glad someone asked that. I looked for a few hours last night and came up empty(been working an off shift so I might have missed it). I am on 4.2.2 MDL and signal is definitely much weaker than my Active on 4.3 . Has anyone compared modems to see which are better?
pahick said:
Glad someone asked that. I looked for a few hours last night and came up empty(been working an off shift so I might have missed it). I am on 4.2.2 MDL and signal is definitely much weaker than my Active on 4.3 . Has anyone compared modems to see which are better?
Click to expand...
Click to collapse
I can provide anecdotal evidence but nothing real...
MK2 is better.
Also, as for which modem to flash; T-Mobile's MK2 would be the one to flash. I've read you can flash other carrier's modems as long as they are the same version, i.e. AT&T MK2 or T-Mobile MK2... but that just doesn't make sense to me and I wouldn't recommend it. The modem you flash is independent of who your carrier is; you go by what brand of phone you have. If you have the M919 then you flash T-Mobile firmwares/modems/etc regardless of which carrier your bill comes from.
abovenbeyond said:
Here is what I am wondering, my signal strength seems to be not the best and it makes me wonder, is there a modem, baseband I can flash on the T-mobile version of the S4 that could possibly help it work better on the At&t network... and do so with out making my S4 a paper weight?
Click to expand...
Click to collapse
I've encountered the same thing with my M919. Switching between Android 4.3 and 4.4.2 modem.bin files made no difference.
I did notice that when I changed my network preference from 3G/2G to 2G-only, I gained about 10 dBa when the handset fell back to GSM-EDGE mode. It made a big difference. I verified that AT&T only uses band II (1900MHz) for GSM and UMTS in my county, so it wasn't because I switched to band V (850MHz) which seems to have better range. What I find annoying is that the handset isn't dropping down to 2G automatically when reception is poor. It'll stick with 3G even when the signal strength is as low as -107 dBa.
No LTE at the moment since my AT&T MNVO doesn't support it.
I'm thinking of buying an M919, carrier unlocked, to use on ATT, so that I can get a proper recovery and have full access to custom ROMs without the safestrap limitations.
Is it safe to say that:
1. If I buy a T-Mobile S4, and it comes carrier unlocked, it will work fine on the ATT network, including 4G / LTE? Lots of data points suggest this but I haven't heard it explicitly stated...
2. Though I could use the phone as identified as an M919, I really want Play Store to see it as an I337 (ATT version), so I can install some ATT specific apps. Is there any problem flashing a build.prop (available in the ATT threads) with the ATT identifiers & APN info, to enable this?
3. Are there any gotchas I should be aware of? Basically, I just want a phone with unlocked bootloader / kernel so I can play. Not too worried about Knox/warranty.
Any insights would be appreciated!
Marc
Frankenscript said:
I'm thinking of buying an M919, carrier unlocked, to use on ATT, so that I can get a proper recovery and have full access to custom ROMs without the safestrap limitations.
Is it safe to say that:
1. If I buy a T-Mobile S4, and it comes carrier unlocked, it will work fine on the ATT network, including 4G / LTE? Lots of data points suggest this but I haven't heard it explicitly stated...
2. Though I could use the phone as identified as an M919, I really want Play Store to see it as an I337 (ATT version), so I can install some ATT specific apps. Is there any problem flashing a build.prop (available in the ATT threads) with the ATT identifiers & APN info, to enable this?
3. Are there any gotchas I should be aware of? Basically, I just want a phone with unlocked bootloader / kernel so I can play. Not too worried about Knox/warranty.
Any insights would be appreciated!
Marc
Click to expand...
Click to collapse
Will the T-Mobile S4 work on the AT&T network; yes it will work if it's carrier unlocked. I purchased my M919 full price out of contract while I was still on AT&T service. Once I carrier-unlocked I was able to pick up AT&T's 4G/LTE and was even able to make use of the AT&T 3G Microcell device which transmits a 3G cell signal and runs over your WiFi. I now have Net10 Wireless with an AT&T SIM card and I still get 4G/LTE when it's around.
Your second question: I do believe that's all that would be required. I'm not 100% sure if just modifying the build.prop would allow you to use the AT&T-specific apps in the Play Store. I never used them to begin with so I never explored whether or not I could make them work on the T-Mobile firmware. Now, I know this involves more than just a build.prop edit, but a 100% sure way to get AT&T Apps working would be to flash a custom ROM based on AT&T firmware. Being that you have a T-Mobile device and are using it on another carrier's network, always remember; when it comes to Odin especially, flash things meant for the T-Mobile M919 ONLY. It doesn't matter that you use AT&T service, your device needs T-Mobile Modems/stock firmwares/etc.
As far as gotchas... not that I can think of. The M919 has an unlocked bootloader and even with KNOX is very easy to root and use custom ROMS on. If you're not concerned with KNOX then you really don't have to take into consideration any special rooting method, no safestrap junk, etc. Without root, just flash a recovery in Odin and flash away.
I know this thread is a bit old, but the situation is very relevant to me. I just won a S4 M919 on eBay which will be delivered tomorrow. T-mobile has agreed to send me an unlock code. My motivation is to install TWRP recovery which I can't do on the i337. I intend to activate it on Cricket (AT&T network). Is it still true that I should stick with firmware, ROMs, and modems designed for the M919? I don't care about AT&T or T-mobile apps so that's not an issue. Basically, I want the best data rates available. Any gotchas that I need to be aware of?
flroots said:
I know this thread is a bit old, but the situation is very relevant to me. I just won a S4 M919 on eBay which will be delivered tomorrow. T-mobile has agreed to send me an unlock code. My motivation is to install TWRP recovery which I can't do on the i337. I intend to activate it on Cricket (AT&T network). Is it still true that I should stick with firmware, ROMs, and modems designed for the M919? I don't care about AT&T or T-mobile apps so that's not an issue. Basically, I want the best data rates available. Any gotchas that I need to be aware of?
Click to expand...
Click to collapse
@flroots
Basically, you're best off bringing the phone to current M919 stock through ODIN. Is that NK2 or has there been a more recent version? I've lost track. But do the entire phone, and in fact as you will see from some threads it is often necessary to flash it twice in succession to get everything to stick. This will bring you to the latest modem. Remember, the modem is two parts: the modem.bin (also known as the gsm modem, which isn't specifically dependent on the bootloader version you have) and the LTE modem (non-hlos.bin, which is dependent on the firmware version, and bad things happen if you mismatch).
Since your phone is out of warranty, there's no downside to going to the latest, even if the phone arrives with 4.2.2 firmware (pre-knox). Tripping the knox bit is only a problem if you would be sending the phone in for warranty service.
I've got the M919 and am using it on ATT, with no problems. I've got the pre-knox firmware (MDL), and will be updating to the latest next time I flash.
Here is an old, but still relevant, thread about my experiences with M919 on ATT.
http://forum.xda-developers.com/galaxy-s4-tmobile/help/using-t-mobile-m919-att-network-t2880349
You will have to configure your APN to match your Cricket service. Sorry, can't help you with those settings but I'm sure they are on XDA somewhere!
Marc
Frankenscript said:
@flroots
Basically, you're best off bringing the phone to current M919 stock through ODIN. Is that NK2 or has there been a more recent version? I've lost track. But do the entire phone, and in fact as you will see from some threads it is often necessary to flash it twice in succession to get everything to stick. This will bring you to the latest modem. Remember, the modem is two parts: the modem.bin (also known as the gsm modem, which isn't specifically dependent on the bootloader version you have) and the LTE modem (non-hlos.bin, which is dependent on the firmware version, and bad things happen if you mismatch).
Since your phone is out of warranty, there's no downside to going to the latest, even if the phone arrives with 4.2.2 firmware (pre-knox). Tripping the knox bit is only a problem if you would be sending the phone in for warranty service.
I've got the M919 and am using it on ATT, with no problems. I've got the pre-knox firmware (MDL), and will be updating to the latest next time I flash.
Here is an old, but still relevant, thread about my experiences with M919 on ATT.
http://forum.xda-developers.com/galaxy-s4-tmobile/help/using-t-mobile-m919-att-network-t2880349
You will have to configure your APN to match your Cricket service. Sorry, can't help you with those settings but I'm sure they are on XDA somewhere!
Marc
Click to expand...
Click to collapse
Thanks a lot for that update. As I understand it, the current firmware is NB4 according to this site:
http://galaxys4root.com/galaxy-s4-stock-firmware/
Not sure what your reference to NK2 is? That doesn't seem to correspond to either 4.2.2 nor 4.4.2? I'm currently on Cricket with a S4 I337 and hope to move the SIM over as soon as my M919 arrives tomorrow.
I believe after NB4 there was NH7 then NK2. Check the firmware thread in the general section for details / links.
Sent from my SGH-M919 using Tapatalk
@flroots
How did this work out for you? I want to do the same thing you said you where going to do.
flroots said:
I know this thread is a bit old, but the situation is very relevant to me. I just won a S4 M919 on eBay which will be delivered tomorrow. T-mobile has agreed to send me an unlock code. My motivation is to install TWRP recovery which I can't do on the i337. I intend to activate it on Cricket (AT&T network). Is it still true that I should stick with firmware, ROMs, and modems designed for the M919? I don't care about AT&T or T-mobile apps so that's not an issue. Basically, I want the best data rates available. Any gotchas that I need to be aware of?
Click to expand...
Click to collapse
Robert417919 said:
@flroots
How did this work out for you? I want to do the same thing you said you where going to do.
Click to expand...
Click to collapse
Robert417919,
I use my SGH-M919 on an AT&T network also. I use the OK3 modem firmware and it seems to work great here. Although I am in Alaska, so top speeds of LTE are only about 6 Mbps where I live. Usually I can only get about 3 Mbps due to the lack of coverage around here.
You can either update to the latest OH3 firmware on your phone, or if you have an old model, with the MDL bootloader, you could also use this guide by lordodin912:
http://forum.xda-developers.com/galaxy-s4-tmobile/general/foh3-modem-bin-mdl-bootloader-t3191094
Also, if you are looking for good roms, you can always check out SlimLP:
http://forum.xda-developers.com/galaxy-s4-tmobile/development/rom-slimlp-jfltetmo-t3377731
Or Resurrection Remix:
http://forum.xda-developers.com/gal...ent/rom-resurrection-lollipop-v5-4-5-t3115155
Hope that helps!
Thanks, this does help out, and another quick question. Are you able to use wifi calling?
AlaskaLinuxUser said:
Robert417919,
I use my SGH-M919 on an AT&T network also. I use the OK3 modem firmware and it seems to work great here. Although I am in Alaska, so top speeds of LTE are only about 6 Mbps where I live. Usually I can only get about 3 Mbps due to the lack of coverage around here.
You can either update to the latest OH3 firmware on your phone, or if you have an old model, with the MDL bootloader, you could also use this guide by lordodin912:
http://forum.xda-developers.com/galaxy-s4-tmobile/general/foh3-modem-bin-mdl-bootloader-t3191094
Also, if you are looking for good roms, you can always check out SlimLP:
http://forum.xda-developers.com/galaxy-s4-tmobile/development/rom-slimlp-jfltetmo-t3377731
Or Resurrection Remix:
http://forum.xda-developers.com/gal...ent/rom-resurrection-lollipop-v5-4-5-t3115155
Hope that helps!
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Robert417919 said:
Thanks, this does help out, and another quick question. Are you able to use wifi calling?
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Glad to help, and no, unfortunately not.
-AlaskaLinuxUser
https://thealaskalinuxuser.wordpress.com
So, I guess I need a little help in figuring out how to proceed.
I have an I747 that I've had my son using, it's flashed with a VERY old modem (LH1) that's the "altered" one that supports T-Mobile HSPA frequencies...
BUT he needs an app that requires 4.3.
I could care less if it's Knoxified... as long as it will continue to work with T-Mobile... right now I'm running a slim rom install of 4.3 on it... which works, BUT the implementation of bluetooth 4.0 Doesn't seem to work for some of the software he's wanting to run right now...
SO, is there a modem that will properly support T-Mobile HSPA frequencies? or do I basically end up with LTE or 3G if I flash a different AT&T modem?
AND if I decide to try this path, I know on the T999 S3's the 4.3 bootloader/modem were a one way path... is there a modem/baseband that will work with a TW 4.3 firmware on the I747 that isn't a one way path - just in case I want to go back?
I was running a paranoid android for some time and wanted to go back to the original rom so I grabbed the latest telus 4.4.2 rom off of samsung updates and the phone works fine. The only thing I notice is that before I used to have the LTE icon in the status bar and now I only have the 4G icon. Since I never got the update officially from Telus over the air, can anyone currently running 4.4.2 on a galaxy s3 inform me if they have the LTE or the 4G icon?
johnnyh55 said:
I was running a paranoid android for some time and wanted to go back to the original rom so I grabbed the latest telus 4.4.2 rom off of samsung updates and the phone works fine. The only thing I notice is that before I used to have the LTE icon in the status bar and now I only have the 4G icon. Since I never got the update officially from Telus over the air, can anyone currently running 4.4.2 on a galaxy s3 inform me if they have the LTE or the 4G icon?
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It's only an image, it doesn't change anything. That being said, you can test your network speed see if anything changed.
BWolf56 said:
It's only an image, it doesn't change anything. That being said, you can test your network speed see if anything changed.
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Well according to Telus:
about.telus.com/community/english/about_us/technology_%26_innovation/telus_networks/national_wireless_network
4G is maximum 21Mbps and LTE is maximum theoretical 150Mbps and acordding to the speedtest app I get 46.97 Mbps download and 7.83 Mbps upload so that means on my LTE?
johnnyh55 said:
Well according to Telus:
about.telus.com/community/english/about_us/technology_%26_innovation/telus_networks/national_wireless_network
4G is maximum 21Mbps and LTE is maximum theoretical 150Mbps and acordding to the speedtest app I get 46.97 Mbps download and 7.83 Mbps upload so that means on my LTE?
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Chances are that you're on LTE. Do you know if your modem changed? Cause if it didn't, you're getting the same thing you were before stock.
Also, like I mentioned, they're images, they are easily swapped/changed. Different ROMs will use different images
You can Go to settings>about phone>status. And it should tell you what network type your on, either HSPA or LTE
BWolf56 said:
Chances are that you're on LTE. Do you know if your modem changed? Cause if it didn't, you're getting the same thing you were before stock.
Also, like I mentioned, they're images, they are easily swapped/changed. Different ROMs will use different images
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I haven't flashed a modem but I did flash the stock rom using ODIN, is a modem included in that package usually? Also I think this rom came with root which would mean it's not 100% stock, is there a place I can get the original telus rom?
crazymonkey05 said:
You can Go to settings>about phone>status. And it should tell you what network type your on, either HSPA or LTE
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It says LTE so that asnwers my question.
johnnyh55 said:
I haven't flashed a modem but I did flash the stock rom using ODIN, is a modem included in that package usually? Also I think this rom came with root which would mean it's not 100% stock, is there a place I can get the original telus rom?
It says LTE so that asnwers my question.
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Root was simply pushed to the stock ROM (might've been unbloated too) but if you want unrooted, get it directly from Kies or a Odin flashable version from Sammobile.com . You might have to unroot before though (using SuperSU or whichever root app you have) if you wanna do it through Kies.
As for the modem, if you flashed stock, then yes it flashed a modem. That being said, it might be the one you had on custom as well cause most custom ROMs don't change it. That being said, you can look which one (if any) was packaged with the ROM you were using and compare with the one you currently have on your phone.