Develop Bugs

data slow after flashing custom rom/ note 2 att i317(help)

Hi i am new to rooting and wind up loosing my stock backup, i had to flash a custom rom and used clean rom 2.0 se.
the data is very slow i went form have 20mbps down to 3mbps download speed. i have been doing some research and i think it may have something to do with my basband, apn settings, and so forth. the issue is clean rom blocks any modification to the settings.
if im on the right track im assuming i can flash a newer verion of my basband and possible my basband?
badsband is- LTE 1.4 or 1400
basband version is- I317UCALJ2
any help ill be greatful, i am a power user and paying 130 a month for the lte speed i need it.

http://forum.xda-developers.com/showthread.php?t=2004650
You need the UCAMA4 baseband and the associated RIL files as well.
Are you familiar with Odin ??
The best way back to stock and keeping root is to Odin flash the stock rom.
I'll get the thread for you. ..BRB. .g
Edit. ..
Thread is on top. .Just follow the instructions provided and you'll be stock and rooted in no time.
I used this method a few days ago and it was perfect.
The device will be restored to factory software with root so back up anything you wish to keep first.
You will even have the option to go full stock from here with a few more easy steps.
Read carefully and use the appropriate files. ..g

gregsarg said:
http://forum.xda-developers.com/showthread.php?t=2004650
You need the UCAMA4 baseband and the associated RIL files as well.
Are you familiar with Odin ??
The best way back to stock and keeping root is to Odin flash the stock rom.
I'll get the thread for you. ..BRB. .g
Edit. ..
Thread is on top. .Just follow the instructions provided and you'll be stock and rooted in no time.
I used this method a few days ago and it was perfect.
The device will be restored to factory software with root so back up anything you wish to keep first.
You will even have the option to go full stock from here with a few more easy steps.
Read carefully and use the appropriate files. ..g
Click to expand...
Click to collapse
thank you for your help but when i download the image odin does not recognize it, i also downloaded a 7z zip managers and it says zero files.

daze28nyc said:
thank you for your help but when i download the image odin does not recognize it, i also downloaded a 7z zip managers and it says zero files.
Click to expand...
Click to collapse
it verted back to stock but the basband version did not change speeds are even worst now... is there somthing i may have did wrong

First of all if you go to settings and about device and than to status and then under imei does your phone show a bunch of numbers?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

Andrew149 said:
First of all if you go to settings and about device and than to status and then under imei does your phone show a bunch of numbers?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse
i got it was still on 4.1.1, it was weird something with firefox would not download the image properly, 4.1.2 is harible stock i dnt know whyi went back. at least know i can properly back up my stock rom and flash back custom. thank you for all help i got it know.
im going to use odin to flash 4.1.2 image so i can get root then add custom recovery.

daze28nyc said:
i got it was still on 4.1.1, it was weird something with firefox would not download the image properly, 4.1.2 is harible stock i dnt know whyi went back. at least know i can properly back up my stock rom and flash back custom. thank you for all help i got it know.
im going to use odin to flash 4.1.2 image so i can get root then add custom recovery.
Click to expand...
Click to collapse
count says 3 on anyway to set that two zero?

Yes...
By using "triangle away" from the play store.
But you would also need a stock recovery to do this, otherwise the counter will stay at 1 until you restore a factory recovery. That is done by flashing CF auto root again to give you the stock recovery.
Honestly, if you are going to stay rooted I would not worry about the counter.
It can easily be set to zero if you need to go stock for a warranty or service....g

Can I flash sprint factory rom to my at&t note 2?
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

[Q] Wrong stock rom!!!

I tired to root my galaxy s3 but ended up bricking it for a while and all i got was the Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again. After trying odin so many time i finally got it to work but now i have another issue...i put verizon 4.1 on my phone using odin instead of att. my att sim wont work and i dont know how i am going to get it back to att stock rom so i can use my phone again!!! if anyone know how to reset this please help i just got the phone and now i cant use it because it has Verizon instead of att galaxy s3 stock rom on it.:crying:

pimpjayjay said:
I tired to root my galaxy s3 but ended up bricking it for a while and all i got was the Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again. After trying odin so many time i finally got it to work but now i have another issue...i put verizon 4.1 on my phone using odin instead of att. my att sim wont work and i dont know how i am going to get it back to att stock rom so i can use my phone again!!! if anyone know how to reset this please help i just got the phone and now i cant use it because it has Verizon instead of att galaxy s3 stock rom on it.:crying:
Click to expand...
Click to collapse
Did you ever flash android 4.3 on you're phone? (This is important)

Ali7000 said:
Did you ever flash android 4.3 on you're phone? (This is important)
Click to expand...
Click to collapse
it already had 4.3 i was trying to root it but the process faild and all i get is the error Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again

pimpjayjay said:
it already had 4.3 i was trying to root it but the process faild and all i get is the error Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again
Click to expand...
Click to collapse
Try these http://forum.xda-developers.com/showthread.php?t=2498233, stock at&t rooted without Knox (Believe me man, better without knox). But they are only leaks of the official firmware. I am not a professional developer so you might wanna create a new thread and ask if it's possible in you're situation.

Ali7000 said:
Try these http://forum.xda-developers.com/showthread.php?t=2498233, stock at&t rooted without Knox (Believe me man, better without knox). But they are only leaks of the official firmware. I am not a professional developer so you might wanna create a new thread and ask if it's possible in you're situation.
Click to expand...
Click to collapse
okay i will look it up and see if it works , thanks.

The Canadian and US phones are pretty similar. Maybe a Canadian rom will work?
You can find official firmware here: http://www.sammobile.com/firmwares/1/?model=SGH-I747&pcode=ATT#firmware

audit13 said:
The Canadian and US phones are pretty similar. Maybe a Canadian rom will work?
You can find official firmware here: http://www.sammobile.com/firmwares/1/?model=SGH-I747&pcode=ATT#firmware
Click to expand...
Click to collapse
No it won't work. Since it is a stock rom it most likely will not work, he won't be able to call, text, or use data.

Ali7000 said:
No it won't work. Since it is a stock rom it most likely will not work, he won't be able to call, text, or use data.
Click to expand...
Click to collapse
I wasn't sure if the OP could install some sort of stock firmware to get his phone going and then install the necessary radio.

audit13 said:
I wasn't sure if the OP could install some sort of stock firmware to get his phone going and then install the necessary radio.
Click to expand...
Click to collapse
The best choice for him is to stick to a custom rom until the AT&T 4.3 update releases.

Ali7000 said:
The best choice for him is to stick to a custom rom until the AT&T 4.3 update releases.
Click to expand...
Click to collapse
Wow. it seems as if you got people in here just giving you ODIN TARS to flash. i wouldnt listen/ flash anything than the leaked 4.3 update for att because MOST odin files have bootloader upgrades in them and if you are on 4.3 you will brick trying to restore stock

Andy_nu said:
Wow. it seems as if you got people in here just giving you ODIN TARS to flash. i wouldnt listen/ flash anything than the leaked 4.3 update for att because MOST odin files have bootloader upgrades in them and if you are on 4.3 you will brick trying to restore stock
Click to expand...
Click to collapse
Hah Yah man I've been through a lot sh**.
Sent from my SGH-I747M using XDA Premium 4 mobile app

At&t Tar files
what should i do, the tar file for Verizon still fails but it will go as far as to let my device boot but so i can at least get to recovery mode and then i can reboot it and clear system data but of courses that not what i want because it running Verizon.I is there a way to find the tar file that has at&t on it so i can try to make it work?

Ali7000 said:
Hah Yah man I've been through a lot sh**.
Sent from my SGH-I747M using XDA Premium 4 mobile app
Click to expand...
Click to collapse
what should i do, the tar file for Verizon still fails but it will go as far as to let my device boot but so i can at least get to recovery mode and then i can reboot it and clear system data but of courses that not what i want because it running Verizon.I is there a way to find the tar file that has at&t on it so i can try to make it work?

Based on the OP, the phone is currently running Verizon's 4.1 which leads me to believe the bootloader has not been updated beyond 4.1.2 since recovery mode is accessible; therefore, I think flashing 4.11 or 4.1.2 stock roms would be fine.
As always, it's best to check the installed bootloader before proceeding with any more flashes.
I used the stock firmware from here to downgrade my Bell s3 from stock 4.1.2 to stock 4.1.1.
Stock firmware: http://www.sammobile.com/firmwares/1/?model=SGH-I747&pcode=ATT#firmware

pimpjayjay said:
what should i do, the tar file for Verizon still fails but it will go as far as to let my device boot but so i can at least get to recovery mode and then i can reboot it and clear system data but of courses that not what i want because it running Verizon.I is there a way to find the tar file that has at&t on it so i can try to make it work?
Click to expand...
Click to collapse
Download the ATT Image
Current I747UCDLK3 (JB 4.1.1)
http://forum.xda-developers.com/showthread.php?t=1739426

audit13 said:
Based on the OP, the phone is currently running Verizon's 4.1 which leads me to believe the bootloader has not been updated beyond 4.1.2 since recovery mode is accessible; therefore, I think flashing 4.11 or 4.1.2 stock roms would be fine.
As always, it's best to check the installed bootloader before proceeding with any more flashes.
I used the stock firmware from here to downgrade my Bell s3 from stock 4.1.2 to stock 4.1.1.
Stock firmware: http://www.sammobile.com/firmwares/1/?model=SGH-I747&pcode=ATT#firmware
Click to expand...
Click to collapse
i wouldnt flash the bootloader just to to be safe though. id flash the recovery from the root forum and then install a cm or aosp ROM.
or open the tar and make sure there are not bootloader related files i forgot all of them but one is mbl. something and 1,2,3 theres a post on here how to check i just dont know where

[Q] HELP Rooting (MK2)?? But On STOCK 4.2.2 DONT KNOW WHAT TO DO NEXT

In the begin I rooted my S4 On the MDL baseband (4.2.2) and had OUDHS recovery installed but i decided to to install Wicked_v10 (4.3) which required for to update to the 4.3 modem and i followed these steps http://forum.xda-developers.com/showthread.php?t=2544612 i followed all the steps with Odin BUT it said that it fail to Update.And it well reboot its self say back to download mode saying "firmware upgrade encountered an issue. please select recovery mode in kies & try again" so basically my phone was Soft-bricked i manage resorting it back use this thread http://forum.xda-developers.com/showthread.php?t=2258628 And soon enough my s4 was back alive:fingers-crossed: But only one problem now i take a look in my setting and i was on the MK2 Baseband As you can see in the screenshot and on top of the i get the error my notification bar saying "The device has detected an application attempting unpermitted actions and has
stopped loading. To protect your device, it is recommended you reboot." So im stuck now and i dont know what to next :crying:
should i just revert back to the MDL baseband because im not sure what to

Skitts said:
In the begin I rooted my S4 On the MDL baseband (4.2.2) and had OUDHS recovery installed but i decided to to install Wicked_v10 (4.3) which required for to update to the 4.3 modem and i followed these steps http://forum.xda-developers.com/showthread.php?t=2544612 i followed all the steps with Odin BUT it said that it fail to Update.And it well reboot its self say back to download mode saying "firmware upgrade encountered an issue. please select recovery mode in kies & try again" so basically my phone was Soft-bricked i manage resorting it back use this thread http://forum.xda-developers.com/showthread.php?t=2258628 And soon enough my s4 was back alive:fingers-crossed: But only one problem now i take a look in my setting and i was on the MK2 Baseband As you can see in the screenshot and on top of the i get the error my notification bar saying "The device has detected an application attempting unpermitted actions and has
stopped loading. To protect your device, it is recommended you reboot." So im stuck now and i dont know what to next :crying:
should i just revert back to the MDL baseband because im not sure what to
Click to expand...
Click to collapse
According to the screenshots you uploaded, you are not on MDL firmware. In fact, you are on MDB firmware. MDB was released when the T-Mobile Galaxy S4 came out. Use Odin and flash the MDL firmware (use that same restore thread again, but do NOT download the link that says Stock Tar, instead download UVUAMDL Official TAR). Flashing this should restore the baseband version from MK2 to MDL.

Vigz said:
According to the screenshots you uploaded, you are not on MDL firmware. In fact, you are on MDB firmware. MDB was released when the T-Mobile Galaxy S4 came out. Use Odin and flash the MDL firmware (use that same restore thread again, but do NOT download the link that says Stock Tar, instead download UVUAMDL Official TAR). Flashing this should restore the baseband version from MK2 to MDL.
Click to expand...
Click to collapse
Thanks i did not see that i was to busy worrying I think thats why my Wifi wasnt working , But other then that you got and suggestions why the modem MK2 gave me a error through odin ?

Skitts said:
Thanks i did not see that i was to busy worrying I think thats why my Wifi wasnt working , But other then that you got and suggestions why the modem MK2 gave me a error through odin ?
Click to expand...
Click to collapse
I'm not sure. I actually used that tutorial to upgrade my baseband and it worked just fine. Another person also had this issue as well. I told them that it could have something to do with the custom binary counter. Apparently, the phone prevents you from flashing unsigned items if the counter is high. You can reset it with an app called TriangleAway.

Vigz said:
I'm not sure. I actually used that tutorial to upgrade my baseband and it worked just fine. Another person also had this issue as well. I told them that it could have something to do with the custom binary counter. Apparently, the phone prevents you from flashing unsigned items if the counter is high. You can reset it with an app called TriangleAway.
Click to expand...
Click to collapse
Hmm could be Because I never did reset the counter when i flashed the recovery but ill give it a try.Ill tell you how it goes Thanks man for all your Help
One more thing ..... Do i have to put the "SS_DL.dll" under the odin folder like it say ?

Skitts said:
Hmm could be Because I never did reset the counter when i flashed the recovery but ill give it a try.Ill tell you how it goes Thanks man for all your Help
One more thing ..... Do i have to put the "SS_DL.dll" under the odin folder like it say ?
Click to expand...
Click to collapse
IT WORK !!!!!!!!!!!!!!!!!!!!!

[q] can´t update my gs3 sgh-i747 from 4.1.2 to 4.3

Hi i have been trying to update my att SG3(rooted) 4.1.2 for a while now,when i try to update to 4.3 it says it does not have any update available but i know that this phone can go up to 4.4.2 kitkat,i have tried to do it with odin but unfortunaley i couldnt find the original firmaware in sam-mobiles ,plz help,it does not necesserly have to go to 4.3 if you guys also now a way to go directly to 4.4.2 it will be great.and i have also tried before rooting my phone,still didnt work.P.S:sorry for my bad english.

If you have the 4.1.2 bootloader on your phone, the simplest way would be to flash back to stock ATT 4.1.1 with Odin and use OTA update to get to 4.4.2.
Using Odin will wipe all of your data off your phone.

You can also odin flash MJB firmware available in the General section. Then you'd only need one ota to get to 4.4.2.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

audit13 said:
If you have the 4.1.2 bootloader on your phone, the simplest way would be to flash back to stock ATT 4.1.1 with Odin and use OTA update to get to 4.4.2.
Using Odin will wipe all of your data off your phone.
Click to expand...
Click to collapse
sorry,im kinda new at this but does bootloader means firmware?,and if it does,for me to flash do i just download the android 4.1.1 and flash to my phone or is there something i need to do before doing that(like unrooting my phone).and if just flash can you plz indicate me a secure site to download it.sorry for the bothering

Yes. When folks here say to flash/update bootloader, they are taking about the full firmware. (Kinda confused me at first too)
You can download it at http://sammobile.com/firmwares
Sent from my SAMSUNG-SGH-I747 using Tapatalk

shaquil999 said:
sorry,im kinda new at this but does bootloader means firmware?,and if it does,for me to flash do i just download the android 4.1.1 and flash to my phone or is there something i need to do before doing that(like unrooting my phone).and if just flash can you plz indicate me a secure site to download it.sorry for the bothering
Click to expand...
Click to collapse
There are various pieces of software that need to be installed in order to all of the various functions to work. The main components are:
the bootloader http://www.addictivetips.com/mobile...bootloader-on-android-phones-complete-guide/;
the modem/baseband http://en.wikipedia.org/wiki/Baseband_processor; and
the operating system or ROM itself.
ATT never released a full firmware (ROM, bootloader, baseband) for 4.1.2 but they did for 4.1.1.
Since your phone is on 4.1.2, you would download the firmware from the previous post, download Odin, install the USB drivers, and flash the firmware.

ok,thank you both DocHoliday77 and audit13

Just a quick FYI, it's more than just the bootloader/modem. The firmware includes the following partitions:
aboot - bootloader
NON-HLOS.BIN - modem/baseband
RPM - resource and power management
sbl2/sbl3 - secondary bootloaders
TZ - Trust Zone
System - rom
Boot - kernel
Cache
Recovery
The first group MUST all match. If they don't it can hard brick.
(This is why I've always wondered why people on the AT&T forums always say to just update bootloader and modem. I'm used to referring to it as the base firmware if not including the system/rom components, or full firmware if including the system.)
Sorry, a little OT. Not anything to be overly concerned about, just me being overly technical is all.
@op
If you follow audit13's instructions you'll be fine.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

DocHoliday77 said:
Just a quick FYI, it's more than just the bootloader/modem. The firmware includes the following partitions:
aboot - bootloader
NON-HLOS.BIN - modem/baseband
RPM - resource and power management
sbl2/sbl3 - secondary bootloaders
TZ - Trust Zone
System - rom
Boot - kernel
Cache
Recovery
The first group MUST all match. If they don't it can hard brick.
(This is why I've always wondered why people on the AT&T forums always say to just update bootloader and modem. I'm used to referring to it as the base firmware if not including the system/rom components, or full firmware if including the system.)
Sorry, a little OT. Not anything to be overly concerned about, just me being overly technical is all.
@op
If you follow audit13's instructions you'll be fine.
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Click to expand...
Click to collapse
sorry but there is something that i still don understand,for me to flash my 4.1.2 to 4.1.1 all i have to do is get the correct firmware and just flash it with odin, dont have to unroot?

shaquil999 said:
sorry but there is something that i still don understand,for me to flash my 4.1.2 to 4.1.1 all i have to do is get the correct firmware and just flash it with odin, dont have to unroot?
Click to expand...
Click to collapse
Yes. Flashing a stock ROM from sammobile.com will unroot and put the phone back to stock.

audit13 said:
Yes. Flashing a stock ROM from sammobile.com will unroot and put the phone back to stock.
Click to expand...
Click to collapse
hi,i have sucefully flashed the 4.1.1 on my phone but the problem still remains,i cant update it,i tied with kies too,still nothing

Now that you're on 4.1.1, use the free method to sim unlock your phone before running OTA updates.
When you are in download mode, do you see the word "Custom" anywhere? Did you run triangle away before flashing back to 4.1.1?

audit13 said:
Now that you're on 4.1.1, use the free method to sim unlock your phone before running OTA updates.
When you are in download mode, do you see the word "Custom" anywhere? Did you run triangle away before flashing back to 4.1.1?
Click to expand...
Click to collapse
i have done a unlock method,i can make phone calls but i cant connect to the internet (wich is the main reason why i want to upgrade to kit kat,so hopefully it will fix that)or when i try to activate mobile hotspot it says"mobile data is not available or invalid sim".
When i am in download mode there is no place written "custom".
And no i did not use triangle away

shaquil999 said:
i have done a unlock method,i can make phone calls but i cant connect to the internet (wich is the main reason why i want to upgrade to kit kat,so hopefully it will fix that)or when i try to activate mobile hotspot it says"mobile data is not available or invalid sim".
When i am in download mode there is no place written "custom".
And no i did not use triangle away
Click to expand...
Click to collapse
Did you check the APN settings on your phone to make sure they are correct?

audit13 said:
Did you check the APN settings on your phone to make sure they are correct?
Click to expand...
Click to collapse
yes,but i think it has something to do with my mobile carrier,i wanted to change my mobile carrier as a last resort but if it is necessary to update then i will do that

Are you on a completely stock ROM? Which one?

audit13 said:
Are you on a completely stock ROM? Which one?
Click to expand...
Click to collapse
yes i am:android 4.1.1 build number I747UCDLK3

If you are on a completely stock ATT 4.1.1, OTA updates and data connections should work.
Under About, the baseband is also LK3?

audit13 said:
If you are on a completely stock ATT 4.1.1, OTA updates and data connections should work.
Under About, the baseband is also LK3?
Click to expand...
Click to collapse
yes
also now i have network connection but it is 2G

Is ATT your carrier?

[Q] My AT&T S3 is Bricked, HELP!

I updated to Cyanogenmod 11's latest nightly of 4/26/2015 and my phone started behaving badly.
I kept losing signal and having trouble making calls and in my attempts to resolve the issue by flashing back to a previous nightly it seems I lost my IMEI and with it connectivity.
I found a video on youtube that says to access the service menu to fix it but CyanogenMod doesn't do anything when I enter the codes in the dialer so I was attempting tro go back to stock but having trouble finding a good stock rom I can use and the 2 I"ve tried both fail in odin. Then I read something about needed a pit file but flashing that fails to.
So right now I went back stop recovery but still on Cyanogenmod but the phone doesn't do anything when it boots...just no connection.
Someone told me the pros in this forum could help so here I am, help me Cell Phone Gods!!!:crying:
Got this phone info app that says bootloader is I747UCUEMJB
Update 5/5/2015 I'm on latest bootloader and running stock rom but have no data and both calling and text work randomly. 4G symbol comes on once in a while but most of the service I do get when it works is on edge network.

Sounds like your modem may be messed up.
Load a terminal app and use the app to verify the bootloader on your phone.

audit13 said:
Sounds like your modem may be messed up.
Load a terminal app and use the app to verify the bootloader on your phone.
Click to expand...
Click to collapse
how do I do that? with my pc? what's a good app to use?

Try this: boot into download and read the screen. Do you see anything about warranty bit on the phone?

audit13 said:
Try this: boot into download and read the screen. Do you see anything about warranty bit on the phone?
Click to expand...
Click to collapse
Yes, says Warranty bit 1
system status official.
What's that tell you?
btw i just went back to CWM
got this phone info app that says bootloader is I747UCUEMJB

Odin is failing with the stock ROM from sammobile because the phone has at least a 4.3 bootloader on your phone. Do not flash anything from sammobile because attempting to do so could brick your phone.
Since you're back on cwm with an mjb bootloader, try flashing the mjb modem via cwm.
http://forum.xda-developers.com/showpost.php?p=47817339&postcount=23

audit13 said:
Odin is failing with the stock ROM from sammobile because the phone has at least a 4.3 bootloader on your phone. Do not flash anything from sammobile because attempting to do so could brick your phone.
Since you're back on cwm with an mjb bootloader, try flashing the mjb modem via cwm.
http://forum.xda-developers.com/showpost.php?p=47817339&postcount=23
Click to expand...
Click to collapse
I tried flashing the modem before...I'll do it again...is that going to get me my IMEI number back or allow me to flash stock rom to recover my IMEI?

fausto412 said:
I tried flashing the modem before...I'll do it again...is that going to get me my IMEI number back or allow me to flash stock rom to recover my IMEI?
Click to expand...
Click to collapse
I did flash the modem you linked and that improved things a bit...I'm back to the original problem, I was having where my phone was having trouble staying on the network. I had even lost all my APNs in my attempts to fix. Now my APNs are back. Still showing unkown IMEI and phone isn't getting on the cell phone network.

So the baseband is now mjb?
Try flashing the latest release of CM10.2. It's possible you need to update the modem and bootloader together in order to support the newest release of CM11. I don't have an s3 so i can't confirm my theory.
You may have to try nvwriter to inject the imei as a last resort: http://forum.xda-developers.com/showthread.php?t=1804117

audit13 said:
So the baseband is now mjb?
Try flashing the latest release of CM10.2. It's possible you need to update the modem and bootloader together in order to support the newest release of CM11. I don't have an s3 so i can't confirm my theory.
You may have to try nvwriter to inject the imei as a last resort: http://forum.xda-developers.com/showthread.php?t=1804117
Click to expand...
Click to collapse
Yes baseband is MJB.
I'll install 10.2 real quick. In the past that didn't help but who knows this time.

OK. Installed 10.2.1 and still have null imei. Connects to cell networks unreliably but no data and texting.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

fausto412 said:
OK. Installed 10.2.1 and still have null imei. Connects to cell networks unreliably but no data and texting.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
not as smart as @audit13 , but might find some help here. good luck.
http://forum.xda-developers.com/showthread.php?t=1804117
"all i can really do , is stay out of my own way and let the will of heaven be done"

Did you confirm that your modem and bootloader match? Did you try nvwriter to inject the imei?

I believe modem and bootloader match. Haven't tried nvwriter...can't access service mode on cyanogen apparently.
What do I do now?
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

audit13 said:
Did you confirm that your modem and bootloader match? Did you try nvwriter to inject the imei?
Click to expand...
Click to collapse
The NV Writer method, I get stuck at this point in the instructions
"*If you are running a aosp rom (cm9,cm10,aokp etc) you can use the diag method described HERE"
The link is dead so I've no idea what I'm supposed to do.

Since your imei is null, I'm not sure what else to suggest except to re-flash the existing bootloader and modem or flash a newer bootloader and modem.

audit13 said:
Since your imei is null, I'm not sure what else to suggest except to re-flash the existing bootloader and modem or flash a newer bootloader and modem.
Click to expand...
Click to collapse
There is a newer bootloader and modem?
I sure wish I had an easier time with finding out this info plus the files.

http://forum.xda-developers.com/galaxy-s3-att/general/modem-4-4-2-modems-i747-i747m-t2856577

OK, about to try to update to ne4 bootloader and modem. wish me luck!

Updated to NE4 firmware but modem file failed due to being on NE4 firmware(wth!)...obtained a different file that installed ok.
Result...still having null IMEI and no LTE...inconsistent connection issues.
I wonder if I was on NJ1 before I started messing around....