yashsingh1/xdaforums huggingface dataset:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
Every time I edit the modem, in hex edit it fails, does the modem have a signed key that is required?

I am going to try the older modem way and see how that works, if it is good enough my wife wont care that its older software. and as its for her I will let it go. but I really would like to see this method work.

I wish I could get someone close with the t999L to pull full info from with the multiple programs I have.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
How are you getting your original modem file? I dl'd a "flash via recovery" ready modem from here: http://xdaforums.com/showthread.php?p=34397816

Then I just unzipped, hex edited, zipped it back up, and it was ready to flash via recovery.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
Yes same modem I used.

I as well unzipped it then edited it in hex and rezipped. the modem installed it just did not get any service I only edited on setting.

I dont have any experience editing modems and so I thought I did it wrong.

Other then wrong edit lol that was obvious.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
It was stated several times in the other thread that all that was needed was the engineering CSC file and modem. If flashing just those two files was enough to stick and not be overwritten then it seems one or both of those two files are what would need to be changed in order to stick now.

---------- Post added at 12:24 AM ---------- Previous post was at 12:04 AM ----------

Were you ever able to verify this? If the i747m is sticking with the nv flash that would also point to the csc or modem as the culprit right?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
If we flashed those files, we'd just be doing the other method.... I did try just the CSC, but it doesn't stick by itself.

I tried it on my I747M. No luck getting it to stick.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
I wasn't saying to just use those files. I was saying that may be where to look for stopping the over write. I was trying to compare csc of engineering i747, stock i747, and t999L. I'm over my head though and couldn't find csc for t999L.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jojo_whit3:
Will this method of flashing just the modem and csc work for aosp/aokp/cm based ROMs?

If not, can I make a backup of my current ROM...install LK3 based ROM...flash the modem/csc...and then do a restore?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
I would put the aosp rom on first make a back up then flash the older modem, csc then restore the aosp rom, I believe the newer aosp roms require new modem to install. but restoring a backup works perfectly fine.

I did that on mine. I never tried installing the rom though so it might work.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] adika9:
Hi, I would like to know when enabling the 1700 aws the phone will have only this band active?

Or will have the bands that a t999 have without lte

Thanks for clarification
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
It will have the same bands as a T999L, so LTE still works if it's available in your area.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] iDuds:
I'm currently running this mod on my i747m on wind mobile in Canada. I would like to install cm10.1 on this phone as I dislike the Samsung features and would like a more stock android feel. If I install cm10.1 will this mod still apply?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jojo_whit3:
I've been working for a solution to this too. The problem with cm10.1 or any aosp rom is that the *#7284# code doesn't work...so you can't put the USB in diagnostic mode. There's a script that can do it for you (found here: http://xdaforums.com/showthread.php?t=1626638...however, it doesn't work with the latest 3.4 linux kernel used in aosp based roms. I had an idea (but haven't tried yet) of flashing an older 4.2.2 ROM with the linux 3.0 kernel so the scripts will work. Then I think you should be able to do the nvbackup/nvrestore commands to make it persistent through reboots.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] cdsu23:
I would like to know if with any of these methods we get hspa+ 21mbps or dc-hspa+ 42mbps? Has anyone reached up to 22mbps on the speed test?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
Using the last stable release of cm 10.1 for the att s3 I was able to use the scripts to open diag mode and then used the nvbackup restore app to keep the settings without the need of a computer after the first one.

But it was a hassle to always have to reboot run the restore let it reboot again then your good to go until the next reboot.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jojo_whit3:
The scripts work on cm10.1? What kernel version does it come with?

I've always ran Task's AOKP which has the 3.4 linux kernel...so I just assumed it was used in all aosp based ROMs.

---------- Post added at 10:00 PM ---------- Previous post was at 09:41 PM ----------

Im in the DC area. On LTE, I get around 20-25 Mbps and on HSPA+ the fastest I've gotten is around 6-7 Mbps.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
Where did u find an nv backup restore app? Im a flashoholic and using my laptop is a hassle sometimes
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
I am guessing the kernel is 3.4 as that is the kernel on my older rom, march something, on my nexus4. I dont currently have the cm 10.1 on the galaxy s3, using synergy stock type rom so I have access to the service menus, mostly for testing can really tell nor change bands with cm.

I was linked to the app, I dont know where it is only that it was on xda.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
Would it be too much of a bother to get a Dropbox link from you? If not its ok
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
This is probably the same one. I think I got it off of Phandroid, maybe? I had it sitting in my sd card.

http://d-h.st/irk
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
hey thanks for the hook up! i tried sending u a pm but i dont think it work sorry if u dont like pm's but i didnt want to throw this OT but i will ask here,i installed the app and i cant get it to work , when i hit back up it reboot and says some thins in really small blue print in top right corner but nothing happens same thing on restore nv settings , i tried looking for a folder in root explorer and found nothing i downloaded the qcn file to restore and it does nothing i cant even access the settings in the app for some reason, i did the *#7284# to change the usb settings and i got nothing ... thanks for any help u can offer me again :o
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
It sounds like the same app, to use it you have to do this in a specific order.

First put the phone into diag mode connect it to the computer then open QPST (get your port information etc.) do the software download /backup your current then use the restore tab and restore the t999L.

When it finishes restoring that it will say cant reset your phone, thats fine at that point open the nvbackup app and hit back up. It will reboot your phone that is it now its done.

Now say you reboot and loose the aws you open nvbackup app and hit restore it will reboot your phone and aws will be working.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
Going to try this now thanks again
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
i used the app and the only thing i wanted to know do i need to keep the usb cable hooked up at all times or am i able to restore the nv on the fly?

(like if im not home away from my pc)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
If you have the correct nv items in backup you can do it with out a need for a computer or usb connection.

Here is the thing though and the reason i said it had to be in specific order. when you do the qpst restore, using computer, you need to reboot the phone for it to work, the signal icons show a circle with a line though it, while it boots up it enables aws but some point in the boot process it injects the original values and so when the phone is fully booted up aws is working but all the nv items are back to original. so if you do your backup at that point it will only backup original settings.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
ya i followed your instructions maybe i did something wrong ill keep trying thanks for your help
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] adika9:
Working flawlessly here on wind (canada)

Like the idea with the app, u can change on the fly between aws(wind) and lte (telus)

Thanks guys

Well done
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mikeye9:
Are you using the Telus version of the i747m? Is the band sticking after reboots?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] iDuds:
I'm on a rogers i747m with android 4.1.1 on wind. It erases after reboot currently. So from my earlier question some said no but it seemed like others think cm10.1 would work. Can I try it and if not downgrade? I'm no phone expert . Would an older version of cm be better? Thanks for your help.

Sent from my phone using my fingers.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
i dont think it matters the rom type it you lose aws after a reboot
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] adika9:
I'm using virgin(bell) i747m but I have a telus sim as well

It doesn't stick after reboot but with the app its very convenient
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] adika9:
Anybody can advise me witch custom rom can I use that is stable enough that has the commands active?

Thanks
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] iDuds:
I too would like to know as well. I just want 4.2 with this mod working really. I'll try tge nvbackup but I dont mind if I have to plug it into the computer if my battery happens to run out. I rarely let my battery die anyways.

Sent from my phone using my fingers.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] zucchero81:
I have a Telus i747m and have followed the steps in the original post, as well as tried the nvbackup app. But the nvbackup app does not reboot my phone and the AWS band does not stick :(
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] iDuds:
Is your phone rooted? nvbackup won't work if not.

Sent from my phone using my fingers.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] zucchero81:
Yep, my phone updated to 4.12 recently but I rooted again afterwards. Could the update be interfering? I have SuperSU and AdAway and they're both working fine.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
Have you tried just the terminal commands (Below)?That's all the app does.

Edited:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] fffft:
Great work by upncoming and several others.

Just fyi of anyone with a Bell S3, the edit is

not

sticking on a Canadian I747m under any circumstances. This is an ex-Bell (GSM) S3 and trying it on Mobilicity. Editing the NV information does enable AWS 1700. But no combination of edits or nvbackup /restore work to restore the NV edit. So the NV must be edited with a computer after every reboot.

I've tried..

Writing the NV data from the T999LNVData, I747NV with AWS & i747_awsmod_noimei qcn's via QPST. Editing just NV 1877 via QXDM command & NV viewer & NV items reader-writer. Also the non-NV method of "enabling" the CDMA band parameters with QXDM from the other thread before writing the qcn.

And every possible combination of when to use reboot nvbackup. Immediately after writing the change, after writing and sending a reset request. After the actual reset /reboot. After a second reset. After a third reset. All of the same after writing the changes with three different tools. And all of that on three different touchwiz (stock) ROMs. In all cases the edit to NV is successful i.e. can be read after the initial write. In all cases reverts after a reset. And most frustratingly never works with any combination of nvrestore. Possibly this is an artifact of the particular ROM images I have used (not always specified by posters). But most likely it has more to do with being a M-variant.. I747M phone.

Trying to write the original four TMO files via Odin fails. The phone will not accept the TMO bootloader. Writing just the modem and CSC produces the same results as other edits attempted. And (foolishly) trying to write the entire T999 partition to the I747M phone by JTAG bricked the S3.

Open to any ideas on how to make nvrestore work.. but I believe I have tried every combination mentioned in both threads, as well the the Note2 one and a few others.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
Has this happen to anyone? Whenever i " reboot nvrestore" my backup from terminal. After reboot It get's the aws enabled, but now every time i want to delete something from root /system . It only read it as "ready-only" and can't "read and write". I know my root is still working. Cuz of this problem i have to restore my boot and system from my nandroid backup every time i want that "read and write" privilage back. Another thing, using the qpst method from op doesn't loose that read and write privilage.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] fffft:
That is a permissions issue. You didn't tell us the exactly what you entered with terminal, but one of the commands seems to be changing the directory or filesystem flag. You can use "ls -la" to see the permissions before and after you use terminal. And fix anything inadvertently set to read only with the chmod, chown or mount commands.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
After the qpst restore from the op .qcn file.

in terminal ;

First i:

su

reboot nvbackup

Then after the reboot i:

su

reboot nvrestore
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] motomandd:
Doesn't work for me, Using a Garnet red i747 originally with Bell, Using Wind right now. Reboot loses connection, I can NVBACKUP, but NVRESTORE does not bring 1700 back.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] zucchero81:
Same here. I did the commands in the terminal, it rebooted but did not restore 1700. Tried this with a Wind SIM. It's a shame because I also have a WIND phone and would like to give the Telus one to my partner to use on Wind. The big 3 (and their "cheaper" clones) are just not a good value, though.

So right now I can only get 1700 working if I use the qpn restore software, and only works until reboot.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
Worked on tmobile with the app.

Red i747 from at&t rooted, sim unlocked, T-Mobile sim, stockorama v2 installed, ucdlk3 modem.

Installed nvbackup/restore app.

Flashed t999l qcn file using computer.

The computer fails to reboot the phone after flashing.

Disconnect from computer (still not rebooted)

Run nv backup/restore app. Choose backup.

Phone reboots and backs up nv then finishes booting.

1700 works fine.

Used phone for several days till reboot was wanted.

Reboot and 1700 not working.

Run nv app and choose restore.

Phone reboots restores nv then finishes booting.

1700 works again till next reboot.

:D

Thanks for all those who got it this far.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
During the qpst process. When the qpst says phone is rebooting, quickly unplug the usb from the phone so phone does not reboot. Now just do the reboot nvbackup command and once phone reboots. Open terminal again and do the reboot nvrestore command. Every time you want aws back, just enter the reboot nvrestore command.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
Not even needed as qpst can not reboot the phone. Not sure why might be because the phone is not cdma.;)

---------- Post added at 04:51 PM ---------- Previous post was at 04:48 PM ----------

The reason why most of these nv backup and restores are not working is because after you reboot the phone (after running the qpst restore of t999l) the nv items are already back to original settings, even though you currently have 1700 available.

You have to do the nvbackup while the phone has NO service.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
Qpst reboots my phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
interesting. what build of qpst?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
2.7 build 378. It's weird because when I first use it. It always fail to reboot just like yours. After using it for a while it started to reboot on its own.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
You are the first person I've heard of that working for with this phone.... like New Optimus said, very interesting. Did you make any changes to your phone? Modem, kernel, etc?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
i think i know . I don't use the *#7284# as my phone doesn't want to go in service mode menu. Instead i download "Samsung service menu" i got off the net somwhere (i forgot where). It didn't have 'RNDIS + DM + MODEM' instead it only have "RMNET+DM+MODEM". I think that's what made my phone rebooted itself. Cuz befor it fail to reboot. I dunno :(

edit: I did flash the latest modem, I747MVLDLK4 and have hyperdrive rom installed.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
I have DLK3. I thought that was the latest, where/when did DLK4 come out.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
oh , my galaxy s3 is a i747m canadian variant. June 1st it's the latest. Don't go flashing the "m" vairants now!! u will brick if yours is i747.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
Ah makes sense, thanks.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
I'll try finding the Samsung service menu app and replicating that. I put the latest update on my M awhile ago, but that didn't make a difference. Thanks for the heads up! I don't think it'll make a difference with making the mod stick, but it might come in handy for people running AOSP.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] adika9:
I'm wondering if I restore the nv (t999) file on aokp rom is it gonna work?

Anybody tried that?

And how can I find the nv backup file that the app saves?

Thanka
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
Here ;)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] motomandd:
Just tried this, Unfortunately does not work in AOSP, Just says requested action not found.

So close!

Thanks anyway! :)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jojo_whit3:
Is anyone else having problems with it auto connecting to the 1700 MHz band? I'm on 4.1.2 rooted with the LK3 modem.

I work in a re-farmed area of DC and I'm able to get LTE and HSPA 1900 on my phone without this mod. On my drive home, my phone switches down to Edge when I get out of range. Once I'm home, my phone just stays at Edge even though the 1700 MHz band is available. I have to use the *#2263# code to switch to WCDMA1700...wait for it to connect...and then switch back to automatic.

Has anyone else had this issue? I'd like to switch to an AOKP ROM but it doesn't have the code built in to manually select the radio bands.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DeeVine:
Try this if it works on aosp rom . http://xdaforums.com/showthread.php?t=1626638
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] johnhazelwood:
I've got a basic question I think I know the answer to, but I'd rather know for sure. I have an AT&T Galaxy S3 I'm running on Tmobile for now ( to compare and see if I want to change so I'm using the Prepaid flavor). I'm trying to understand the 1700MHZ goal in this thread. Is it:

1) The AT&T S3 doesn't enable 1700MHZ by default?

2) If I use this solution, does it lock my phone to 1700 so I won't get LTE which is at 1900?

3) Is the other solution (the flashable modem/csc file one a more flexible solution)?

I've applied this solution and see 4G showing now, instead of LTE, so I'm assuming 4G is HSPA+ and maybe I'm not getting LTE while running this?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] motomandd:
If I try the galaxy s 3 method, it says cannot find /sys/class/android_usb/android0/f_acm/instances
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
1. True the i747 doesn't do hspa on 1700 with all original i747 software & firmware.

2. No the nv restore method does not lock the phone to 1700. You can choose automatic and when available it will switch to lte which is on 1700/2100.

It will also do hspa on 1700/2100

And hspa on 1900

3. The modem/csc way just leaves you with an older modem. Both ways have plus and minus. Nv requires restore after each reboot.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
The att software has 1900 the preferred band, and while it generally will switch to the strongest signal and the faster signal sometimes it will just stay edge because the signal is strong and its the preferred signal.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] nviz22:
So this mod will allow me to get HSPA+ on the S3 on a stock ROM for T-Mobile. What about LTE as well?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] johnhazelwood:
Thank you! I had forced 1700 yesterday and wasn't getting LTE. Using automatic today it does include LTE.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
Anyone got this working on any asop ROMs? Tried using tasks lasest and the script method to get the dialer codes is not working
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
Dialer codes do not work on AOSP roms.

Though there is a script that can be used to open diag mode. I linked to it earlier I will see if I can find it.

when you open diag mode you can then use qpst and then nvbackup app if you dont every time you reboot its a hassle again.

---------- Post added at 07:24 PM ---------- Previous post was at 07:15 PM ----------

ok found the thread with the script.

http://xdaforums.com/showthread.php?t=1626638
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] johnhazelwood:
One other question. With this mod, would this make the AT&T phone work as well as one purchased from Tmobile?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
Ya I used those scripts and no go thanks for the link anyways I miss my aokp fix lol
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] johnhazelwood:
Where is the NVData stored when using the Backup/Restore app? Would the following work:

1) NV Backup using the app, immediately after restoring the QPST file

2) Backup NV Backup/Restore app via TitaniumBackup

3) switch to CM 10.1

4) restore NV Backup/Restore app along with data via Titanium Backup

5) run NV Restore command
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bleedingthru:
The dialer codes on cm don't work I thought about using tibu to backup app and flash another rom without having to use my pc if possible
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] johnhazelwood:
Yeah what I'm thinking, that may or may not work, is to install stock, do the qpst flash, use the nv backup android app to backup, backup the nv backup app via titanium backup, install CM, restore nv backup app via titanium backup, restore nvdata via nv backup app. Just not sure it would work. Wouldn't require dialer on CM then.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] New Optimus:
I do not know where the back up is located but I do no that what your thinking wont work.

On stockish rom did the nv backup then restored cm10.1 in recovery it booted into att locked aws as expected ran restore on the app and bootlooped when it tried to boot up.

So I tried it the other way as well, on cm 10 did the diag mode script opened qpst did the t999L restore did nv backup app and rebooted cm 10 was good with aws/as far as I could tell, the actual band info was not available but signal and speed indicated aws was working.

so then went into recovery restored stockish rom and when it booted only edge, as expected so restored nv using the app. it boot looped.