yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S 4 Android Development] Febby:
You have an i9500 or i9505..? The i9500 doesnt support LTE I believe.. While the i9505 does. Don't attempt to flash any i9505 modems on your i9500 if you value it dearly. Im surprised no one caught that on a modem thread. The i9505 has a exynos processor (HSPA+ max network) , while the i9505 rocks a snapdragon (LTE max network).

---------- Post added at 12:36 AM ---------- Previous post was at 12:30 AM ----------

1: Flashing modems should not affect Qfuse, Only bootloaders, in this case if for you just don't accept the MF3 OTA update ever. Flashing the MF3 modem won't break anything, nor will flashing back to MDL or MDB modems

2: I would do the manual aws mod. I personally flashed those "AWS" modems countless times but the wcdma band 1700 wouldnt be selectable when attempting to via rje band.selection menu. Once I did the manual AWS mod via qpst it worked. Try it yourself but my opinion is that it doesnt work but give it your own try. :)
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
Yeah, I'm seeing that now. I have 1700 MHz in the menu but it doesn't actually do anything, and I see my phone is still connecting to 1900 MHz. So I'm gonna do the mod. Like I said, in a hex editor on my computer, I compared the "normal" MDL and "AWS-enabled" MDL modem.bin's, and they literally had 0 differences. So I'm not sure why the OP has the same file labeled as being "AWS-enabled."
[AT&T Samsung Galaxy S 4 Android Development] 2Tone5:
Well it came from task650 whom is a recognized developer on xda, maybe you should take it up with him
[AT&T Samsung Galaxy S 4 Android Development] parmar.saab:
I don't think international S4s have lte capabilities.

---------- Post added at 07:22 PM ---------- Previous post was at 07:12 PM ----------

The modem zips are the same. If you truly want to unlock aws, you need to do so with the qpst method.
[AT&T Samsung Galaxy S 4 Android Development] srqrob:
Thanks for your help. That's what I was hoping that since the phone supports 4g-LTE and the AT&T network is 4G-LTE that the two would play well together. I was trying to find out if the CWM zip installer was keyed to only that I337 hardware or some init file in the ROM that would stop and abort the installation. I grabbed the CWM_I337UCUAMDL_Unlock.zip file looking for compatibility with my factory unlocked phone. I'll do a Nandroid so I can return to an operating phone if the modem does not work. My research on the i9500 before I bought it reported that the phone connects 4g-LTE in other markets but it did not on the AT&T network. When I got my AT&T sim to finish out my contract with them, they showed this to be true. I was hoping that laying in an AT&T modem, that might change.

---------- Post added at 04:02 PM ---------- Previous post was at 03:56 PM ----------

Yes, the i9500 supports 4G-LTE and I have heard the i9505 does not. What processor does the i337 have, the quad or the simulated 8 core like the i9500?

Thanks for your help.
[AT&T Samsung Galaxy S 4 Android Development] Febby:
Sorry I was very sleepy. I meant the i9500 doesnt. If you noticed I said the i9505 doesnt then said it does lol!

.The i9500 (exynos octa core) does not support 4G LTE at all in any part of the world. Its max network supported is H+.

The i9505 supports H+ and LTE. (Snapdragon i9505).

Nothing you do will make LTE work on your i9500. Please don't attempt to flash any i337, i337m, M919, i9505 modems. Only i9500.
[AT&T Samsung Galaxy S 4 Android Development] srqrob:
Thanks, I see you're correct as I check again. Appreciate your catching this for me and saving me trouble down the way. I'll make sure I don't mix these.
[AT&T Samsung Galaxy S 4 Android Development] Easton999GS:
DO NOT FLASH THESE RADIOS.. Your i9500 phone is completely different internally than the i9505 S4s You will end up with a giant brick if you even touch these radios.. Idk why everyone here is giving you inconclusive answers...
[AT&T Samsung Galaxy S 4 Android Development] Febby:
I already gave him the proper answer. Im not sure who is "everyone". He knows not to flash any non i9500 modems. :0
[AT&T Samsung Galaxy S 4 Android Development] BeGrateful:
I've tried searching around and its just too confusing with all the different carriers, I'm trying to find what modems I can flash on my AT&T i337. The DL speed on MF3 is garbage and want to try some others to see if there is anything better out there.

Thanks in advance
[AT&T Samsung Galaxy S 4 Android Development] :
I think only mdl and mf3. Our carrier radios. What is your build version.

MF3 is great for me--could be your area??

I have tried a lot of radios on various phones and never saw much of a difference.
[AT&T Samsung Galaxy S 4 Android Development] BeGrateful:
Well I'm using Paranoid Android for 4.3. Don't know how to check the firmware since the build number is for a custom ROM and doesn't show anything related to the firmware version. I'll try the MF3 but I've already tried it once before and didn't see much of an improvement. Do I need to flash nohols.bin after?

---------- Post added at 01:18 PM ---------- Previous post was at 01:03 PM ----------

Still only getting 5-6mb/s on LTE with the MF3 modem. I don't think its my area because I've had LTE on earlier phones and was averaging 20-25mb/s.
[AT&T Samsung Galaxy S 4 Android Development] :
Not sure on issue then, maybe rom

This is a flashable mf3 zip for att i337

https://dl-web.dropbox.com/get/Publ...AD92HwwXdZeGp_el_F47BE1xKX7IeY58uoNF-be5Bev6g

nothing else to do
[AT&T Samsung Galaxy S 4 Android Development] BeGrateful:
OK thanks man. I've done some more research and it looks like the ROM I'm using has a few problems with ATT service so I'm gonna try another ROM and see what happens. Thanks again man!
[AT&T Samsung Galaxy S 4 Android Development] sizemore2000:
Link not working.
[AT&T Samsung Galaxy S 4 Android Development] LimitsX:
Hi, I tried to flash one of the canadian i337M zip via recovery on my SGH-M919V (canadian variant of M919). It did not change my modem :\. I am on original stock 4.2.2 VLUAMG1 modem but LTE disabled. can't flash tmobile one via odin, there is a AUTH: Fail.

My original modem does not have LTE enabled. When I force it, i lose calling and texting feature.

If anyone knows a work around or how to make these modems actually flash, i would appreciate it.
[AT&T Samsung Galaxy S 4 Android Development] fidorulz:
What is the difference for the 2 MVLUAMG1 modems on the first post? I know it says stock kernel but since its a modem not sure what the difference is here

modem_CWM_1337MVLUAMG1.tar{7/24/2013}(Canada) STOCK KERNEL HERE NONHLOS.BIN HERE

modem_CWM_1337MVLUAMG1.tar {7/31/13}
[AT&T Samsung Galaxy S 4 Android Development] highaltitude:
Any chance of getting modems newer than MF3?
[AT&T Samsung Galaxy S 4 Android Development] gravedigger76:
Isn't MF3 the newest for Att?

Sent from my SAMSUNG-SGH-I337
[AT&T Samsung Galaxy S 4 Android Development] highaltitude:
Probably, however the hardware is exactly the same as the 9505, so all someone needs to do is port it over from that model. I had MF3 long before someone offered it on this forum for AT&T. I just wondered if anyone can port them over.
[AT&T Samsung Galaxy S 4 Android Development] 2Tone5:
You can get all the i9505 modems in the i9505 forums... the purpose of this thread was to only have north American modems
[AT&T Samsung Galaxy S 4 Android Development] Febby:
Non Att modems won't work.
[AT&T Samsung Galaxy S 4 Android Development] highaltitude:
Yeah I got that. I have an SGH-i337, I just happened to be running Omega v.11 so it says GT-9505. I dont post if its the worng forum to be posting in. I would like to find a modem newer than MF3. If thats not possible, then thats fine. However way back before MF3 was here, I downloaded a zip from the Omega threads and installed it on my phone. Somehow it worked. Then later when I saw it posted here, I re-downloaded it again. I dont know much about the structure within the zips, so I didnt know if it was possible to take one from a 9505 and port it to work on the AT&T SHGi337. From what it sounds like, this is not possible. Gues I got my answer, thanks guys.
[AT&T Samsung Galaxy S 4 Android Development] :
MF3 is latest. I have never seen much difference btwn any carrier modems. Location seems to be the real factor--:)
[AT&T Samsung Galaxy S 4 Android Development] skavis:
What is the most recent modem I can use on an i337m? I think I messed up my efs to v2 and I need to know what I can use.
[AT&T Samsung Galaxy S 4 Android Development] force70:
That would be MG1.you will need to flash a .tar file via odin/mobile odin our devices wont flash modems in recovery

Edit: im assuming your on a canadian carrier? If not there are newer versions for the i337m in other countries.
[AT&T Samsung Galaxy S 4 Android Development] skavis:
Yeah Canadian, Thanks
[AT&T Samsung Galaxy S 4 Android Development] thuglifesk:
Hey guys need some help. I have a I337M currently on I337MVLUAMDJ. However I have flashed Omega V11 so my device says GT-I9505. Now I would like to update to the MG1 modem but I keep getting error in Odin. Can someone please guide me on what I need to do to make this work?
[AT&T Samsung Galaxy S 4 Android Development] bendotson:
Great work here! is there a flashable MF3 modem with AWS unlocked?
[AT&T Samsung Galaxy S 4 Android Development] force70:
try changing your build prop..worked for me when I flashed att rom (mobile odin wont work on att)

sent from Canada via my S3,S4 or Note2
[AT&T Samsung Galaxy S 4 Android Development] fidorulz:
Had same issue and nothing worked for me except the following.

Flash back to stock MDJ then upgrade to stock MG1 then root and install your rom
[AT&T Samsung Galaxy S 4 Android Development] Easton999GS:
MF3 Radios are by far the worst radios for this phone, not only do i have **** service with it and my data speeds suck but my battery life is terrible... Sticking to AWS unlocked MDL forever.

---------- Post added at 05:39 PM ---------- Previous post was at 05:37 PM ----------

No hes right.. MF3 radios are straight garbage. MDL AWS unlocked are the fastest and best battery by a long shot.
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
The AWS unlocked radio is exactly the and as the normal MDL. It doesn't unlock AWS unless you do the separate mod. I even compared the two modem files in a hex editor and it literally told me there were 0 differences, so I don't know why there are 2 different files.

Sent from my SGH-I337
[AT&T Samsung Galaxy S 4 Android Development] Easton999GS:
i think you missed the point. I dont even use AWS so i know its the same as MDL here. Its the fact that MF3 blows
[AT&T Samsung Galaxy S 4 Android Development] :
If the mf3 radio is not working well for anyone, it may also not be locking onto bands quickly and causing the battery drain

I wouldn't say mf3 radios are all bad. I do very well on mine and never noticed much difference btwn any radio I have used on any phone.

All these phones have minor differences in hardware specs and one radio may work better than another for some folks. Doesn't make the radio junk--imho--:)
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
I didn't miss any point. I'm well aware that MF3 sucks. Im point out that both of the other two modems are the same.

That, and Samsung is terrible at programing RILs (which is the code responsible for allowing the phone and modem to talk to each other).

Sent from my SGH-I337
[AT&T Samsung Galaxy S 4 Android Development] :
May Be--All I know is this phone on att runs circles around my HTC One S on TMO as far as reception goes--Very Happy

Good speeds almost everywhere I go--:good:
[AT&T Samsung Galaxy S 4 Android Development] svs57:
Phone i337, modem I337UCUAMDL AWS, ROM Omega12, kernel KT

Do I need to install the RIL library from the modem AMDL?
[AT&T Samsung Galaxy S 4 Android Development] fidorulz:
How do I check if I have the right ril for my modem and how would I change it if needed?
[AT&T Samsung Galaxy S 4 Android Development] svs57:
As I know ril library and modem must be compatible.

I have Omega ROM. So ril files come with ROM.

That's why I think whether I need to take somewhere ril files for UCUAMDL modem

GetRIL app doesn't support sgs4. I don't know another way to check modem and ril compatibility.
[AT&T Samsung Galaxy S 4 Android Development] cpom1:
The link to the mdl aws enabled is not working. can someone share please?
[AT&T Samsung Galaxy S 4 Android Development] sSACc:
Somebody could help me with the latest modems to Telcel México, actually I have the MG1,thanks in advance
[AT&T Samsung Galaxy S 4 Android Development] Black6spdZ:
why is the I545 listed in the thread title?
[AT&T Samsung Galaxy S 4 Android Development] svs57:
Stupid question.

Why can not we use the international modem?

There is Loki kernel patch. It may be possible to create something similar for a modem?
[AT&T Samsung Galaxy S 4 Android Development] MENACE_69:
*deleted
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
It doesn't actually enable AWS. The file is the same as the normal MDL. I can confirm this; I used a hex editor to compare the files and they came up with 0 differences.

You need to perform this mod to enable AWS on your i337/i337M: http://xdaforums.com/showthread.php?t=2291589&page=37
[AT&T Samsung Galaxy S 4 Android Development] sharpeyedman:
I also confirm this is true.

Flashing AWS unlocked modem never worked. But the listed QPST method above worked flawleslly.
[AT&T Samsung Galaxy S 4 Android Development] svs57:
Do we really need do AWS unlock to use i337 as international?

Can anybody make AWS unlock with I337UCUAMDL?

Few time ago I did AWS unlock with UCUAMF3.

But I back to AMDL because AMF3 prevent enter service mode.
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
No you don't. The only carrier that uses AWS for 3G in the US is T-Mobile, and in Canada it's Mobilicity and I believe Wind. So if you're not using any of those you don't need to.

And also I don't know what you're talking about. You cannot flash a modem that "contains an AWS unlock" because you have to do the mod that I linked to above, again.

Sent from my SGH-I337
[AT&T Samsung Galaxy S 4 Android Development] LaZyDood:
i know this is a different model for and s4 but im just hoping someone can point me in the right direction.

my friend has a sprint s4 (L720) and i got led here in my search. in the OP, theres a link for an L720 with the instructions but i cant seem to get my friends phone to work with his current network(Wind mobile). im not well versed in the s4 since i have an s3 so sorry for the possibly "noob" and naive questions. gonna try makin a new thread in the proper section too in case somebody might be able to help me and my friend out.

thanks
[AT&T Samsung Galaxy S 4 Android Development] MENACE_69:
Hey did you have any luck finding modems that were safe/compatible to flash on a sprint s4?

As i do have one on mf9 as of now but am looking to see if flashing other modems will better some signal issues i've been haveing but have not been successfull in finding any. I just dont want to hop into the fray and flash away unknown modems like a mad man and potentially brick my device is all lol.

But luckily you made a post regarding this recently as there aren't to many people in here who are looking for sprint s4 variant modems.

So if you would kindly get back to me on this i'd appreciate it bro.
[AT&T Samsung Galaxy S 4 Android Development] LaZyDood:
no luck.my friend just decided to sell his sprint s4 and buy a local one that can have an AWS unlocked.
[AT&T Samsung Galaxy S 4 Android Development] MENACE_69:
Aww that's too bad, but im glad to hear hear you got another s4 that can be used in your area on your local carrier sweet. Congrats on your new device

Yeah, im not looking to do exactly what your trying to accomplish (get a sprint s4 working on wind mobile) but im just looking to what people refer to as downgrading from the latest modem mf9 to another previous sprint s4 modem like mdl,mdc. (note i still want to stay on sprint just change to a previous modem) im curious to see if flashing a few modem's that are compatible and safe of course will give me better signal.

Do you know if it's as easy as downloading the modem and flashing it through ODIN useing the proper steps of course or is there more to it.

I've wrote to multiple users regarding this but haven't got a reply and in some threads i got mixed answer's one would say follow these steps, another would say do this and one would say none of those methods worked. so im still unwilling to go through with it until i have some clarification.
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
I'm so confused. What are you two Sprint S4 users trying to do exactly?
[AT&T Samsung Galaxy S 4 Android Development] MENACE_69:
Lol, okay i have a sprint galaxy s4 with a mf9 baseband (modem) and i am trying to better my signal and want to flash a few modem's to see if the problem better's. But flashing modems isn't my cup of tea. I don't know where to begin. All i managed to dig up was there's 3 modems compatible and safe to flash on a sprint s4 mdl/mdc/mf9 (might be more idk) if im wrong please do correct me.

With that being said is it as easy as downloading the modem Tar file and flashing it through ODIN? Can i go from mf9 to a older modem safely?

As for the other guy lazydude i think he was trying to get his sprint s4 to work on a diffrent carrier idk.

Edit:I've scoured other thread's in hope for finding a straight answer to this question but was just confused more and didn't feel safe going through with this until i got clarification from a knowledgeable person who has done this. So your help would be appreciated
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
1) If you're in the US, don't bother trying to get your Sprint device working on a US carrier; they're programmed specifically to block them out. Even if you get them unlocked, the best you can do is get them to see the carrier (using an AT&T/T-Mobile SIM), but they won't connect. There are, of course, a few exceptions (the Sprint HTC One on a certain modem, for example, but it's super-finicky). Save yourself the trouble if you're trying to use a Sprint device on another US carrier.

2) Modem files come in two formats: ZIP and TAR. A ZIP is flashed through custom recovery (you must be rooted). A TAR can either be flashed through a PC (Rooted or not) using ODIN and the phone in bootloader mode, or you can use Mobile ODIN (an app that requires root).

3) For the S4 at least, the modems for all devices seem to end in the same last 3 letters (e.g. my AT&T S4 is on "MDL"). So make sure you download the one for your device ("L720").

Flashing a modem is like flashing anything else. If you're not rooted, download the .tar for your device and flash it through ODIN. You should be able to downgrade just fine.
[AT&T Samsung Galaxy S 4 Android Development] MENACE_69:
Okay first off Im sure the info you provided (u.s sprint s4 on another carrier) would have been useful to" "LaZyDood" as he was trying to do so. Im sure it would have saved him some time,fustration and trouble but i guess he decided just to sell his sprint s4 and buy one specifically for the local carrier of his choice.

As for the modem's wow am i glad you happen to stumble onto my post. as i am pretty knowledgeable when it comes to most and if im not a little reading, reading and some more reading usually serfice's but as I've never done this. I didn't want to end up with a potentially bricked device. A little clarification is always mind easing. Thanks to you i think you've given me that. I was bounced around with mixed answer's the last couple days and with nowhere near as close to what you said so thank you.

Anyways i didnt know there's modem zip file's flashable through a custom recovery such as twrp or cwm ect. Nicee to know I thought it was strictly odin tar file's when it comes to modem's (i was mislead by other answer's) . I might just decide to go the recover flashable zip file route since im familiar with it and it seems easy . I do have pc and mobile ODIN pro (never used mobile ODIN) but it's nice to know i have options fyi i am rooted and running sac's latest with KToonz kern, killjoy and some custom settings from the shop ktweaker shop ^_^ (irrelevant to the convo)

are these all the avaialable modem's for the sprint s4 mdl,mdc and mf9 ? If so no worries(thought there would be more of a selection) , would you happen to know where i could find all of these modem's in zip and tar file's, could you provide a link as i only see the mf9 L720 modem in the op. If not thats fine I'll do some searching around... im sure it's somewhere in the forum. Now when doing this will this "just" switch my baseband (modem) nothing else (rom, internal/external sd data) , all that inportant stuff just a radio swap?

If I am rooted is it just as easy as a unrooted user? Downloading the tar/zip and downgrading/upgrading a modem through odin or recovery

Or is it a diffrent process?

EDIT: i came across this link (below) and thought other SPRINT GALAXY S4 owners out there might want flashable MODEMS (mdl, mdc, mf9)for there device so here you go . They worked flawlessly for me.

http://xdaforums.com/showthread.php?t=2338919
[AT&T Samsung Galaxy S 4 Android Development] LaZyDood:
i was trying to make it work on a canadian carrier(wind mobile).

You can flash ANY modem on your phone from any variant of the s4(doesnt mean it will always work) via odin(tar,md5) or custom recovery(zip). you dont need to be rooted if you flash via odin, but you need to be rooted if you flash via custom recovery. do take note that it is a good idea to only flash modems from the same variant to avoid problems. but if your the adventurous type, you can go ahead and flash other variants' modems since they relatively have the same modem. if it doesn't work, majority of the time it will leave you not getting any signal and you can just reflash another modem. but theres also the off chance it corrupts your modem.
[AT&T Samsung Galaxy S 4 Android Development] ragz:
Just askin, but what experience do you have flashing multiple variation modems on our device. Because I guarantee someone will take this as a tested option and say it was supposed to be all good. I am not being rude ,just careful.
[AT&T Samsung Galaxy S 4 Android Development] Product F(RED):
I'm fairly certain the partition layouts are different; if you flashed a T-Mobile Note 2 modem on an AT&T Note 2 (seemingly the same devices, both GSM), the phone would show no IMEI, no service, and would bootloop until you flashed back AT&T modem (or vice versa).
[AT&T Samsung Galaxy S 4 Android Development] LaZyDood:
no offense taken.just like i said,you can flash but it doesnt mean it will always work. some do, most dont thats why its only for the adventurous and those who know what theyr doing. same as stated above, if it doesnt work, you will get obvious results, and like i've also stated, doing so also has a chance to break your device, so do it at your own risk and research well before attempting. if you dont know why you should be doing it, how, and what for, then DONT.

i have said something dangerous and somebody might really be stupid enough to do it without prior research and proper knowledge, i get that. so i was careful to include all the warnings. if you think i should edit it,i will as requested. ;)
[AT&T Samsung Galaxy S 4 Android Development] RockRatt:
Here is the New ATT i337 4.3 i337UCUEMJ6 Firmware Modem pulled from DGs stock firmware posted. This is ONLY flashable in Recovery.

LINK http://d-h.st/Bot

Sent From My Spiderman Themed I337
[AT&T Samsung Galaxy S 4 Android Development] gravedigger76:
Nice!

Any feedback on the new baseband guys?
[AT&T Samsung Galaxy S 4 Android Development] Airtioteclint:
nice thanks. :good:

So far so good. Speed test shows same speed tho, but that's a network thing.
[AT&T Samsung Galaxy S 4 Android Development] stevehkim:
Stupid question but can the MJ6 modem be used on 4.2.2 TW?