yashsingh1/xdaforums huggingface dataset:
[T-Mobile, Samsung Galaxy SIII] allthingsdroid:
Wifi Driver Unstable

Hi Guys,

I got the OTA update ( T999UVUENC2 ) about a month back and since then, my Wifi has stopped working. It stays greyed out when I try to turn it on. Just won't turn on.

The logcat says that the "WiFi driver is unstable".

What I have tried so far (with no success):

1) Flash the same build again (T999UVUENC2).

2) Flash the root666_T999UVUENC2 build. (Currently, I am on this)

3) Flash Cyanogenmod 11.

4) Factory reset.

5) Pull the battery out when the phone is on and put it back again.

6) Modify/delete the wpa_supplicant.conf file.

Can someone please give any directions on how the "Wifi driver can be fixed"? I understand from going through the forums that downgrading from 4.3 to 4.2 can cause a brick. However, can I downgrade to the previous T-Mobile 4.3 build (T999UVUEMJC ) without causing a brick? Do you guys think that can help fix the Wifi?

Any help would be greatly appreciated.
[T-Mobile, Samsung Galaxy SIII] Perseus:
[MENTION=5341589]allthingsdroid[/MENTION]

You need to do Factory reset between Step 2 and Step 3. Ask on CM thread if other users of that EXACT build have WiFi trouble.
[T-Mobile, Samsung Galaxy SIII] allthingsdroid:
I'm sorry, I should have mentioned this. I did do a factory reset between steps 2 and 3, like I always do before flashing a new ROM. Would you happen to know if I can flash T999UVUEMJC (4.3) on top of T999UVUENC2 (4.3) without risking a brick? I know attempting to flash an earlier android version (<4.3) can cause a brick since there are bootloader changes in 4.3. However, I couldn't find any posts which says whether or not it is safe to flash the previous build of 4.3 (T999UVUEMJC ) on top of the current build of 4.3 (T999UVUENC2). Thank you for taking the time to reply.
[T-Mobile, Samsung Galaxy SIII] Perseus:
You could only in certain cases. But I want to know what is the need to do so ? If its the modem, you can flash that by itself.
[T-Mobile, Samsung Galaxy SIII] serio22:
You can't, you can only flash an MJC rom, not firmware
[T-Mobile, Samsung Galaxy SIII] allthingsdroid:
The Wi-fi has stopped working since I flashed the latest build (T999UVUENC2 ). I have tried every other recommended method to fix it, with no success. Is there a chance of fixing the Wifi by just flashing the modem. If so, it would really be helpful if you could guide me in the right direction to flashing just the modem. Thank you for taking the time to respond.
[T-Mobile, Samsung Galaxy SIII] Perseus:
Depends on your Rom. You might be needing Insecure Kernel Doc posted in order for WiFi to work.
[T-Mobile, Samsung Galaxy SIII] allthingsdroid:
Thank you for the reply. Would it help fix the Wifi if I just flashed the ROM? If so, could you please guide me in the right direction to flashing just the ROM and not the firmware?
[T-Mobile, Samsung Galaxy SIII] serio22:
You flash it like any other rom. I would try what Persus suggested first as this is likely the case
[T-Mobile, Samsung Galaxy SIII] dwegiel:
T999L here. Having really shoddy luck getting it to connect to T-Mobile towers with CM M12. Calls, texts, data, all intermittent. What is the best choice for a modem? Much appreciated.
[T-Mobile, Samsung Galaxy SIII] mp3deviant721:
Try flashing a couple of different modems. Only thing to keep in mind is that you do not want to flash a modem that is older than your boot loader. That'll do you no good. Anything newer than your boot loader will be fine.

GS³: Carbonized, leanKernel'd, Philz'd

Gimme Chocolate!!
[T-Mobile, Samsung Galaxy SIII] RoxAbout:
Curious about sgs3 lte vs non lte sgs3

My friend has ans3 that is lte model and got kitkat update. Is the rom compatible with the tmobile sgh-t999 s3?

sorry if its a noob question my s3 is now a backup device in a drawer and I've been on the nexus 5 since april so I havent been following along with all the posts.

Thanks for your time
[T-Mobile, Samsung Galaxy SIII] Perseus:
Samsung Firmware for LTE version is useless to your device. It might even hardbrick your Device.
[T-Mobile, Samsung Galaxy SIII] V@no:
I just got T999L model with UVUBNC1 checked for updates and it installed UVUBNF4
[T-Mobile, Samsung Galaxy SIII] chalky7880:
Is the uvubnf4 baseband available to download? Or would I have to flash the whole firmware with Odin to get this baseband?

---------- Post added at 12:05 PM ---------- Previous post was at 11:58 AM ----------

Edit: nevermind I found what I was looking for.
[T-Mobile, Samsung Galaxy SIII] mc00:
anyone got flashable over custom recovery for UVUBNF4(t999l) ?
[T-Mobile, Samsung Galaxy SIII] serio22:
Use a T999 one
[T-Mobile, Samsung Galaxy SIII] Dabidue:
SGS3 I9300 and SGS3LTE I9305 are different, don't flash criss-cross to avoid bricking your device - nevertheless, this is the wrong thread to ask. ;)
[T-Mobile, Samsung Galaxy SIII] CarlosBattousai:
What if you're on 4.4.4? I have a T999L Uvamb7 I only see up to 4.1 here
[T-Mobile, Samsung Galaxy SIII] mp3deviant721:
The NC1 modem is 4.3. Use that. It'll work with 4.4.4. (Which by the way was never officially released by T-Mobile. They stopped at 4.3)

GS³: SlimKat + leanKernel Edition™

ギミチョコ！！
[T-Mobile, Samsung Galaxy SIII] CarlosBattousai:
Ahh got ya, thanks~
[T-Mobile, Samsung Galaxy SIII] Shack70:
I just rooted T-Mobile LTE version of galaxy s3, should I edit build. prop with setting from beginning of this thread or just leave it. Seems T-Mobile has LTE everywhere now.
[T-Mobile, Samsung Galaxy SIII] Perseus:
Yes do it. If no further improvement, then you can revert.
[T-Mobile, Samsung Galaxy SIII] jcalderin:
I need help with this,

I have network problems with my T-Mobile (d2tmo) Samsung Galaxy S III.

When I switch from 2g (EDGE) to 4g, the phone work fine (on 4g) for various minutes, then network stop working and not able to make/receive call's or texts, also not data but still showing signal bars and 3g icon on notification bar.

For temporarily fix the issue I switch manually to EDGE (2g) and then switch back to 4g, the phone work fine few minutes, then drop/stop working again.

If I use the phone on EDGE (2g) the device work perfect all day.

I think the problem comes from the "Fast Dormancy" because the issue happen when the phone switch from H+ to 3g.

How can disable Fast Dormancy?

My currently setup on device is:

Model: SGH-T999

ROM: CM 11 ( cm-11-20150208-NIGHTLY-d2lte)

Android: 4.4.4.

Base Band: T999UVUENC2

Kernel: 3.4.104

Thanks... ;)
[T-Mobile, Samsung Galaxy SIII] joseq97:
help

i have a s3 it was rooted running 5.0 but i tried to get it back to stock it did but then it stopped reading the sim

Any modems i can flash to fix it
[T-Mobile, Samsung Galaxy SIII] serio22:
Try flashing stock again, or flash the most previous build's modem, not sure it will work though. Other than that, try a new sim
[T-Mobile, Samsung Galaxy SIII] joseq97:
Can you try and find me the links for some if you can that would be great
[T-Mobile, Samsung Galaxy SIII] YPG70:
Where do we get the Kitkat Baseband Version?
[T-Mobile, Samsung Galaxy SIII] bazofia:
Hi there, did you find any solution for this? I have the same issue as described above, I've tried pretty much every rom/baseband out there without success.

Was your phone network locked by any chance before? I unlocked mine online.
[T-Mobile, Samsung Galaxy SIII] yahanna:
Hi guys... I got 2 questions:

1) I got a T999 using a rooted Jelly Bean stock rom. Is it possible to install a modem from ICS?

2) Which modem version for the T999 has the least battery drain?
[T-Mobile, Samsung Galaxy SIII] yahanna:
I'm a little confused about this thread. Do the radios on the 1st page already have data tweaks?
[T-Mobile, Samsung Galaxy SIII] Perseus:
I recently had the misfortune of running into this issue. First I called CS, they went through the Factory Reset et el. No joy Can't make or receive calls. So went to a store. The Store Rep made me change SIM but that didn't help. So called again to the CS. This time I got a Guy who knew what he was talking about. I will make the story short.

The issue is that T-Mo is changing the way 4G towers communicate to the phone. Our existing APN epc.t-mobile.com should not be used anymore. You are better off switching to fast.t-mobile.com. Also in addition, you need to change the Network Mode to either GSM only or to WCDMA/GSM. I forget which is which on Stock. If you list all 3 possible values and your current value for the Network mode, I will be happy to help.

Settings > About>Baseband
[T-Mobile, Samsung Galaxy SIII] YPG70:
i know how to check Baseband vesion, thats not what I ment tho. I mean where do we download the baseband version? Seems like I need the lollipop version
[T-Mobile, Samsung Galaxy SIII] Perseus:
Don't believe Lollipop was released for US version of the S3
[T-Mobile, Samsung Galaxy SIII] YPG70:
Was Kitkat Version released? I also think that wasn't
[T-Mobile, Samsung Galaxy SIII] Perseus:
I think KK was released for Verizon and Sprint. But not for ATT and TMO. Honestly not sure about Sprint.
[T-Mobile, Samsung Galaxy SIII] matrixzone:
Kitkat has been released for ATT. We had so far 2 updates on Kikat, the last update was NJ1.
[T-Mobile, Samsung Galaxy SIII] DJAlik:
New firmware for T999

Looks like T-Mo has a new update for T999 T999UVUEOH1. Is there a new modem that can be extracted and flashed on top NC2?

https://support.t-mobile.com/docs/DOC-4446
[T-Mobile, Samsung Galaxy SIII] nirogu325:
EDIT: Yup. Flashed the full firmware thanks to [MENTION=4081205]DocHoliday77[/MENTION] and indeed there is a newer bootloader (ends in OH1 in the Terminal Emulator) and a new modem.
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
I'll have the modems posted hopefully by tomorrow. Sorry for the wait!
[T-Mobile, Samsung Galaxy SIII] daggorlad:
Good to see you back, Doc. I have been away from the S3 thread awhile myself as I upgraded to an Asus T00n. But I decided to pull my old S3 and dust it off as it has superior sound and brightness as compared my Asus, but the S3 seems so small now.

Looking forward to flashing the new modem, thanks for all the hard work you have put into helping your fellow S3 users.
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
Question: Do i have to reboot the phone after i edit the build.prop file? I am only updating the default values.

From:

Default

ro.ril.hsxpa=1

ro.ril.gprsclass=10

To:

ro.ril.hsxpa=3

ro.ril.hsdpa=14 (added)

ro.ril.hsupa=6 (added)

Edit: I figured out that i cannot save the changes but i think i have to overwrite the build.prop file with the modified one copied in extSD and paste it and do a reboot in TWRP. Still backup up the original build.prop file though.
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
For some reason my settings were not saved? I have copy pasted the file in TWRP with success. I wonder what i have missed. It went back to default.
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
Use Root Explorer or another root capable file browser to edit the build.prop rather than trying to copy one over another.

The build.prop is loaded during boot so you have to reboot after making any changes.
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
Root browser works!!! Now removing the crappy ES File Explorer...... lol
[T-Mobile, Samsung Galaxy SIII] YPG70:
hey doc did u ever get the OH1 baseband flashable zip? if you have it can u share plz
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
I'll get it posted tonight.
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
OP Updated!

OP Updated to include the latest OH1 modems for the T999, T999L and T999N! Sorry it took a while to get them up!
[T-Mobile, Samsung Galaxy SIII] Perseus:
Thanks Doc! Appreciate your time on this. I wasn't sure I want to flash the full firmware. The NC2 Modem is flaking out on LP. So hoping this one performs better.
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
No problem! I hope it helps. Let us know how it goes.
[T-Mobile, Samsung Galaxy SIII] Perseus:
So I flashed the modem on top of NC2 modem and it "appears" to be giving slightly better reception for me. I still have the NC2 Rom.

The downside is that, I can't turn on wireless. I do not have KT747's TW kernel installed. I will try that to see if that let's me turn on Wireless.
[T-Mobile, Samsung Galaxy SIII] YPG70:
Thanks doc gonna flash this!
[T-Mobile, Samsung Galaxy SIII] pcaseiro:
Flashed latest modem OH1 and everything is great.

Thank you Doc
[T-Mobile, Samsung Galaxy SIII] Perseus:
Is Wireless turning on ?
[T-Mobile, Samsung Galaxy SIII] pcaseiro:
Yes wireless is turning on. I'm on cricket wireless and latest CM12.1 ROM
[T-Mobile, Samsung Galaxy SIII] YPG70:
Everything works great for me wifi, data, etc ..
[T-Mobile, Samsung Galaxy SIII] alotmoore:
Same here. I'm still on the NC2 Rom and can't turn on wi-fi with the OH1 modem.
[T-Mobile, Samsung Galaxy SIII] YPG70:
i kept wifi on when i flashed it..
[T-Mobile, Samsung Galaxy SIII] Perseus:
Turned on my Wifi by Flashing KT747 Kernel Be Sure to Pick up the latest 4.3 version for your device.

As suspected its the damned customization to SELinux Secure.
[T-Mobile, Samsung Galaxy SIII] alotmoore:
Many thanks!
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
If I remember right, WiFi isn't working because you probably have slightly older base firmware (bootloader). If you fully updated I believe it would work. Otherwise kt747 kernel is the only option. (Nothing wrong with using it though!)
[T-Mobile, Samsung Galaxy SIII] Perseus:
Really ? I have NC2 Bootloader and figured that should have been sufficient. Oh well. I will have to find Kies I guess.

Was anyone else successful with Towel Root on top of OH1?
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
It has been a while but I seem to remember going from MJC to NC2 the same thing happened. If flashing the NC2 modem on MJC firmware it would break WiFi. This is because they moved the WiFi drivers/modules. The reason kt747 solves this is because it includes it's own modules. There's a little more to it, but that's what I remember about it at the moment.
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
As for towelroot, I haven't heard anything concrete about it one way or another. I believe it should work though because the exploit was patched in 4.4.2 and not 4.3. Of course that's no real guarantee. I should be giving it a shot myself very soon, hopefully today. I'll let you know what I find when I do.
[T-Mobile, Samsung Galaxy SIII] martinevannew:
Hi, I'm from Argentina and I have a T999 T-mobile and does not work on WCDMA can it be a problem of modem? Do any of these modems could solve that problem? Only it works on edge. Please someone give me your help! I will be eternally grateful.

Enviado desde mi XT1063 mediante Tapatalk
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
Are you using the stock ROM version? I had this problem before and was able to to a WCDMA connection using this ROM but I'm not sure how it was changed or updated. Just make sure to follow the requirements before installing this ROM. Hope this helps.

Links:

http://xdaforums.com/galaxy-s3-t-mobile/development/rom-s3rx-4-0-touchwiz-4-4-2-t2860797

or

http://xdaforums.com/galaxy-s3-att/development/s3rx-4-0-touchwiz-4-4-2-ucufne4-8-12-14-t2848080
[T-Mobile, Samsung Galaxy SIII] martinevannew:
Yeah, stock rom 4.3.3 ¿rom you recommend?

Enviado desde mi XT1063 mediante Tapatalk

---------- Post added at 01:57 PM ---------- Previous post was at 01:57 PM ----------

Please, link!

Enviado desde mi XT1063 mediante Tapatalk
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
I would recommend this ROM. Feels new phone like S5 and it was recently updated last year... If you can, backup your stock ROM if possible so you can go back just in case.

Links:

http://xdaforums.com/galaxy-s3-t-mobile/development/rom-s3rx-4-0-touchwiz-4-4-2-t2860797

or

http://xdaforums.com/galaxy-s3-att/development/s3rx-4-0-touchwiz-4-4-2-ucufne4-8-12-14-t2848080
[T-Mobile, Samsung Galaxy SIII] guvey:
what modem are you using? im downloading the rom of the link because i dont have wcdma only edge. i just want to know what modem are you using, thanks for your help
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
I'm using Baseband version: T999UVUENC2
[T-Mobile, Samsung Galaxy SIII] guvey:
thanks for your quick response.

i have a last question, do i have to be on stock rom to flash the modem or it doesnt matter? because im using likewise s5 v4.1 and i have the baseband t999uvueoh1 but i dont have wcdma
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
I don't think it matters if you are in stock ROM when flashing the modem.. I would highly recommend to check out first the prerequisites before installing the new ROM to avoid issues and less troubleshooting.

Let me know if you are able to do the WCDMA... if not there is another way of forcing it using a different flashing software. I will dig the old thread and look for it if needed.
[T-Mobile, Samsung Galaxy SIII] guvey:
really is there another method, can you help me with the other method. can you provide me the link please or the method
[T-Mobile, Samsung Galaxy SIII] Perseus:
In order to use any of the Modems from OP, all you need is the Custom Recovery such as CWM or TWRP or Philz. It does not matter what Rom you are on. Unless that custom Rom can't communicate with the new modem. In other words, if you got unknown baseband after flash, try some other rom.

TBH, I didn't know an OH1 Modem was out by itself.
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
Try this: http://xdaforums.com/showthread.php?t=2344627 Hope it works for you...
[T-Mobile, Samsung Galaxy SIII] guvey:
thanks bro i tried that before this post. but i have seen someting in some areas i see the 4g icons but i dont know what its the problem. in my home all my family have 3g (they are using other phone) but i dont get 3g
[T-Mobile, Samsung Galaxy SIII] Perseus:
Do please understand that the T-Mobile version of S3 will never get True 4G (AKA 4G-LTE) since its missing hardware. Signal strength depends on several factors and environment. You can get to the location where you saw 4G icon before and then try toggling Airplane mode for 3 minutes.

But the True test is with Speedtest.
[T-Mobile, Samsung Galaxy SIII] GoldenboyXD:
Even if it's showing as 4G it will be limited to WCDMA speeds... Sometimes you will need to manually select the WCDMA only so it wont turn back to Edge. As per Perseus, it is hardware limited.

I have noticed a negative con about this phone as it heats up very quickly when using WCDMA for data, it burns... 3G/HSPDA speeds are enough for normal use and 4G are only good for downloading big files like movies IMO. As long as you get out of Edge, you are good to go and just enjoy the S3 as it is...
[T-Mobile, Samsung Galaxy SIII] Perseus:
Truer Words have not been spoken.
[T-Mobile, Samsung Galaxy SIII] bkwas:
unknown baseband

Flashed UVUEOH1 with twrp 2.8.70 now unknown baseband and no data. Guess I had a stock 4.3.3 Baseband version: T999LUVUBNF4 running cm 12.1. Tried factory wipe and clean install of cm 13 nightly but no success. Please help?
[T-Mobile, Samsung Galaxy SIII] Perseus:
Go completely back to stock.
[T-Mobile, Samsung Galaxy SIII] bkwas:
Yes I did that and now all is good, thanks
[T-Mobile, Samsung Galaxy SIII] ahmedzetm:
my phone wont turn on wifi
[T-Mobile, Samsung Galaxy SIII] hasan.sy:
I use mokee rom on my t999 with baseband t999uvuenc2 does it support lte ? And if i flashed t999luvubnc1 or newer t999l modem does it get lte ? my device is unlocked to international network
[T-Mobile, Samsung Galaxy SIII] Gotenks99:
Is mokkee ROM better than lineage os?
[T-Mobile, Samsung Galaxy SIII] hasan.sy:
yes but lineageos still has security updates and sometimes calls notifications doesnt appear if you add speed dial number in mokee
[T-Mobile, Samsung Galaxy SIII] Gotenks99:
I'm just using my d2tmo on WiFi only. I currently have lineageos but randomly freezes and restarts like on Instagram. Can't seem to find the mokee link online , do you have a copy of the firmware?
[T-Mobile, Samsung Galaxy SIII] hasan.sy:
https://download.mokeedev.com/d2tmo.html this is the official website
[T-Mobile, Samsung Galaxy SIII] joederp:
I'm on the outer edge of where HSPA+ is too weak, if I get it, it is fast, but it goes to 3G and EDGE a lot. Anyways, I can say that UVLI8 is a clear improvement over 7 or 2. (Though upload seems erratic now and jumps around in speed)
[T-Mobile, Samsung Galaxy SIII] gaww:
I had reboots a few time after flashing UVLI8 (on UVlI7 leaked ROM), but it sems to have settled down.
[T-Mobile, Samsung Galaxy SIII] Wildchld:
That is normal. Once it reboots app works fine JB is clearing old data from the app
[T-Mobile, Samsung Galaxy SIII] RaymondPJR:
Are we seeing the birth of a new Android app here, lol!
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
Well I don't know about you guys but its definitely got wheels spinning in my head! Not saying im building an app...doubt i could pull that off right now...but ive definitely got some ideas! You never know where an idea lead!

Right now I just hope everyone likes what we are trying to do here and finds it useful to some extent.
[T-Mobile, Samsung Galaxy SIII] kurplop:
uvl18 Minneapolis

T999+AOKP= ONENESS
[T-Mobile, Samsung Galaxy SIII] lowlife546:
thanks for this thread doc and all the contributions from everyone. This definitely should be stickied.

Gonna try out uvli8 today and report back.
[T-Mobile, Samsung Galaxy SIII] jlczl:
UVLI5 on Lean Kernel v0.15 and unofficial Cm10 sept18 build in McAllen Texas:
[T-Mobile, Samsung Galaxy SIII] fadi33:
anyway the thread title can be updated with the latest radio version and date?
[T-Mobile, Samsung Galaxy SIII] es7241:
Anyone notice their imei sv went back down to 6 on li8 mine was at 7 with li7
[T-Mobile, Samsung Galaxy SIII] Aerowinder:
Yes, I noticed that as well.
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
I'll think about it. You're only given so much room for the title and so far I've always had the modems released in under a day. Usually a few hours. So when theres a new leak you can be sure a new modem is soon to follow if its not already here.

We'll see though.
[T-Mobile, Samsung Galaxy SIII] fadi33:
OK thank you for the consideration
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
NP. Ill go ahead and try to change it to make it easier for you guys. Itll be later though.
[T-Mobile, Samsung Galaxy SIII] lowlife546:
Damn dude I can barely hit 10 here in Houston, TX / Katy. Does McAllen get a faster connection than us here?

Anyway tested UVLI8 throughout the day. Could only get around 6mb/s in Houston and about 3mb/s in Katy. UVLI4 was definitely faster for me by about 2 mb down. Gonna try out UVLI5.

BTW running tMIUI
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
Tmobiles only updated some markets to hspa+42. Everyone else is still on 21.
[T-Mobile, Samsung Galaxy SIII] jlczl:
It probably has to do with how densely populated Houston is compared to McAllen. Then again I've tried all the radios and with most of them I couldn't get out of the single digits as well. UVLI5 is definitely the best for me.
[T-Mobile, Samsung Galaxy SIII] lowlife546:
Yeah I was thinking that same thing since t-mobile has had hspa+42 here since 2011. Flashed UVLI5 and already see an improvement. Getting 6mbps down now in Katy
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
If you are in sn area with hspa42, there may be other things to try. Cant get into it now, but will pass u some ideas when I get home.
[T-Mobile, Samsung Galaxy SIII] RaymondPJR:
I didn't know anything about this. I hope here in Portland we are on 21 so I have something to look forward to. If not, then...
[T-Mobile, Samsung Galaxy SIII] DocHoliday77:
Try to google T-Mobile hspa+ 42 rollout schedule.

Last I checked thrre was no new info for upcoming upgrades, but I ran across an old rollout sched. Didn't have my city on it so didn't bother to save or remember anything else.

Ill try to find it again if you cant, but if you do would you post a link?
[T-Mobile, Samsung Galaxy SIII] skyxliner:
Hi everyone,

I have a general question about modems.

1) Where do these new modems come from? are they released by tmobile? samsung? or are they custom made by developers?

2) do modems get wiped when you clear davik and cache?
[T-Mobile, Samsung Galaxy SIII] lokichim:
tmobile gives them to samsung . adn sam releases them in ota.

and no