Develop Bugs

problem with samsung galaxy nexus

I bought a galaxy nexus online in italy (imported).
The firmware is Yakjuxw and was not updated. I had a card H3G italy and everything worked ok.
I then updated to yakju and was always ok. I had Android 4.2.1
Today I changed my carrier and not read any sim Wind Italy
you can not tell me another radio to flash it correctly?
or at least I can redo the procedure to bring him yakjuxw?
how do I fix it without having to bring in help?
I discovered dall'imei by samsung which is imported Romanian

sounds like your phone was temporary unlocked and after flashing yakju you lost the unlock.. now the phone only accepts sim of the carrier its locked to.. the only way to fix this is by either calling the carrier and getting a unlock code or buying the unlock code online..
PS- i can see you need help but next time post in the correct section :good:

the gnexus is not carrier locked...
other sim with other carrier goes well...only wind italy have problems
maybe i have flashed a not radio img compatibile?

Try this app, it says it's only for docomo network. But it worked fine for me, you have to be rooted for it to work tough.
http://forum.xda-developers.com/showthread.php?t=1548008
edit: Use the unlock method where you keep your IMEI code, could void warrenty otherwise.

devilmj said:
the gnexus is not carrier locked...
other sim with other carrier goes well...only wind italy have problems
maybe i have flashed a not radio img compatibile?
Click to expand...
Click to collapse
oh.. then i am not sure what the issue is... weird that it stop reading one specific carriers sim

I can confirm nexus phones comes factory unlocked regardless the county you purchased it from.
Make sure you don't have a bad baseband after the ROM update.
I bought mine in Canada under a Fido contract and it works fine here in Italy and anywhere else I have been with any carriers.
Sent from my Galaxy Nexus using Tapatalk 2

If you go under:
settings
more
mobile networks
-> Do you have wind Access point name
-> Try to with Network Operators if appear
Under About phone, what is yout Baseband?

anarkia1976 said:
If you go under:
settings
more
mobile networks
-> Do you have wind Access point name
-> Try to with Network Operators if appear
Under About phone, what is yout Baseband?
Click to expand...
Click to collapse
hi,
the problem is that the sim is not recognized by the phone...it not ask me the pin code!
Now i can check the baseband....i flash this adio-maguro-i9250xxla02.img then i think i have this xxla2
and not work with this carrier
i think i must flash the JB Baseband...XXLF1 = baseband Europe
to install it as long as I put it on the phone, go into recovery and do update zip?

But have you tried a total recovery?

devilmj said:
hi,
the problem is that the sim is not recognized by the phone...it not ask me the pin code!
Now i can check the baseband....i flash this adio-maguro-i9250xxla02.img then i think i have this xxla2
and not work with this carrier
i think i must flash the JB Baseband...XXLF1 = baseband Europe
to install it as long as I put it on the phone, go into recovery and do update zip?
Click to expand...
Click to collapse
Download baseband + ril from thread and flash from cwm ....!

anarkia1976 said:
Download baseband + ril from thread and flash from cwm ....!
Click to expand...
Click to collapse
ril is required?
I don't have it installed now..

Yes
Sent from my Galaxy Nexus using xda app-developers app

If he's running stock ROM, the baseband would have updated along with the 4.2.1 update...that's how my Nexus updated when I went to stock a few weeks ago...the bootloader also updates to the latest...the SIM is probably defective or that particular carrier runs on a different band (unlikely)...it could also be that the APN settings need to be entered manually like I have to do with Straight Talk.
Sent from my Galaxy Nexus using xda premium

devilmj said:
I
Today I changed my carrier and not read any sim Wind Italy
you can not tell me another radio to flash it correctly?
or at least I can redo the procedure to bring him yakjuxw?
how do I fix it without having to bring in help?
I discovered dall'imei by samsung which is imported Romanian
Click to expand...
Click to collapse
Ask your carrier to raplace the SIM card.

this telephone not read any sim...
how can i solve it?

devilmj said:
the gnexus is not carrier locked...
other sim with other carrier goes well...only wind italy have problems
maybe i have flashed a not radio img compatibile?
Click to expand...
Click to collapse
The radio will have nothing to do with it. Almost all GSM GNex radios are compatible with almost all GSM carriers in the world.
Segnale007 said:
I can confirm nexus phones comes factory unlocked regardless the county you purchased it from.
Click to expand...
Click to collapse
This is NOT true. There are many GNex devices that come carrier locked.
devilmj said:
hi,
the problem is that the sim is not recognized by the phone...it not ask me the pin code!
Now i can check the baseband....i flash this adio-maguro-i9250xxla02.img then i think i have this xxla2
and not work with this carrier
i think i must flash the JB Baseband...XXLF1 = baseband Europe
to install it as long as I put it on the phone, go into recovery and do update zip?
Click to expand...
Click to collapse
You probably have a bad SIM card.
devilmj said:
ril is required?
I don't have it installed now..
Click to expand...
Click to collapse
No.
maxon_yalta said:
Ask your carrier to raplace the SIM card.
Click to expand...
Click to collapse
+1. This

I eventually discovered that one of the pins of the sim reader is broken.
the adapter broke it, so now I have to replace it.
hardware problem, you can close.
thanks to all

[Q] t-mobile s4 with at&t stock firmware

--------------------------------------------------------------------------------
can I flash a at&t stock firmware with odin to my T-Mobile m919 with out any problems...right now my s4 is sim unlocked and im on at&t network .and it seems like its working ok but signal a little on the low side and spotty lte service....would there be any advantage flashing at&t's stock firmware to use on att network ...would my service and signal be any better.....if I wanted to would I be able to flash back to T-Mobile stock firmware...will it work....anyone try this ..anything I should know before I do this ...thanks in advance

Yes, you can. but be aware that you will lose t mobile features like wifi calling which is really useful.

re: wifi calling
XxKINGxX2580 said:
Yes, you can. but be aware that you will lose t mobile features like wifi calling which is really useful.
Click to expand...
Click to collapse
He will NOT loose Tmobile wifi because he never had it, if he has an AT&T unlocked phone and
odin flashes any tmobile rom there will be no wifi calling because AT&T network itself does not offer it.
The only way he will have Wifi calling would be if he switched from the AT&T network to Tmobile network.
No one will have wifi calling regardless which rom they flash unless they have a tmobile sim card.
hope this clears things up a bit.

Misterjunky said:
He will NOT loose Tmobile wifi because he never had it, if he has an AT&T unlocked phone and
odin flashes any tmobile rom there will be no wifi calling because AT&T network itself does not offer it.
The only way he will have Wifi calling would be if he switched from the AT&T network to Tmobile network.
No one will have wifi calling regardless which rom they flash unless they have a tmobile sim card.
hope this clears things up a bit.
Click to expand...
Click to collapse
I have a T-Mobile phone I use on at&t network ...flashing at&t stock firmware wont lock my phone right ..and should be able to flash back to T-Mobile stock firmware if I wanted to right..wont relock sim or bootloader....thanks guys

re: locked/unlocked
[email protected] said:
I have a T-Mobile phone I use on at&t network ...flashing at&t stock firmware wont lock my phone right ..and should be able to flash back to T-Mobile stock firmware if I wanted to right..wont relock sim or bootloader....thanks guys
Click to expand...
Click to collapse
Nope, it won't lock or re-lock your phone, once a phone is unlocked properly it will stay that way
regardless which rom you flash and regardless if you're on the AT&T network or Tmobile network.
Do not Odin flash the AT&T stock firmware on a Tmobile phone even if it's unlocked.
If you do you will not be able to make or receive any phone calls.
You can flash AT&T or Tmobile CWM/TWRP flashable stock or custom zip file roms because
those do not contain the radio/modem images like the Odin flash firmware do.
If you odin flash back to stock Tmobile firmware you will loose root unless you re-root after flashing.
As far as bootloaders go, a Tmobile phone requires a Tmobile bootloader, but you don't need to worry
about that if you flash the stock official tmobile firmware with Odin.
All the other tmobile and at&t cwm/twrp flashable zip file roms found in these threads don't contain
any bootloaders that's why they can be flashed on any unlocked and rooted tmobile or at&t phones.

Misterjunky said:
Nope, it won't lock or re-lock your phone, once a phone is unlocked properly it will stay that way
regardless which rom you flash and regardless if you're on the AT&T network or Tmobile network.
Do not Odin flash the AT&T stock firmware on a Tmobile phone even if it's unlocked.
If you do you will not be able to make or receive any phone calls.
You can flash AT&T or Tmobile CWM/TWRP flashable stock or custom zip file roms because
those do not contain the radio/modem images like the Odin flash firmware do.
If you odin flash back to stock Tmobile firmware you will loose root unless you re-root after flashing.
As far as bootloaders go, a Tmobile phone requires a Tmobile bootloader, but you don't need to worry
about that if you flash the stock official tmobile firmware with Odin.
All the other tmobile and at&t cwm/twrp flashable zip file roms found in these threads don't contain
any bootloaders that's why they can be flashed on any unlocked and rooted tmobile or at&t phones.
Click to expand...
Click to collapse
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4

re: locked/unlocked
[email protected] said:
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4
Click to expand...
Click to collapse
Exactly, the hardware is only a little different that's why we can use the cwm/twrp flashable zipfile custom
tmobile/at&t roms with either the tmobile locked or unlocked phones or the unlocked at&t phones.
The only exception is that wifi calling only works on an actual tmobile phone with a tmobile
sim card which is on the tmobile network whether it's locked or unlocked.

[email protected] said:
--------------------------------------------------------------------------------
right now my s4 is sim unlocked and im on at&t network
Click to expand...
Click to collapse
Misterjunky said:
The only exception is that wifi calling only works on an actual tmobile phone with a tmobile
sim card which is on the tmobile network whether it's locked or unlocked.
Click to expand...
Click to collapse
Don't think it matters if WiFi calling isn't enabled.

I thought the hardware between the AT&T s4 and the T Mobile s4 was the same. I thought the reason they received different radio frequencies was in the firmware and not the hardware can anyone confirm ..
I wanted to try to flash AT&T stock firmware on my t-mobile s4 for better performance on AT&T network

[email protected] said:
I thought the hardware between the AT&T s4 and the T Mobile s4 was the same. I thought the reason they received different radio frequencies was in the firmware and not the hardware can anyone confirm ..
I wanted to try to flash AT&T stock firmware on my t-mobile s4 for better performance on AT&T network
Click to expand...
Click to collapse
I would love the answer to this question too.

The key is the Modem aka Baseband. This is the Radio file and it is hardware and carrier dependent. If you try to flash this you will mess up the bootloader and radio and you have a brick.

I'm too on AT&T network with T-Mobile phone. I'm using the stock MDL radio and it's working fine. I don't notice a difference between the 2 devices on LTE network. if T-Mobile can't lock on to LTE network, AT&T S4 won't either.

sorry to slightly threadjack.... but does that mean if i flash a custom s4 AT&T rom (i.e. "CleanRom"), i will still be going through a Tmobile bootloader \ kernal etc..?
Is there any foolproof way to "convert" an tmobile s4 to an ATT based s4?

Can't you guys just flash a popular custom rom for sgh-i337 variant and then change the radioband (or whatever it's called) sh*t manually? If you ever flash another carrier rom, make sure ur baseband is the original carrier/phone as stated before. And flash ur carrier/phone kernel(custom or stock, doesn't matter) as well.

I believe these ppl created this topic because they want the stock carrier branded firmware on their phone, so that they can have all the carrier specific features on their phone. Third party ROM is not their choice, otherwise there are tones post out there already. I believe someone must be brave enough to flash it to their phone to test that, otherwise, there is no good answer to that.

Cal-El said:
The key is the Modem aka Baseband. This is the Radio file and it is hardware and carrier dependent. If you try to flash this you will mess up the bootloader and radio and you have a brick.
Click to expand...
Click to collapse
Hi guys, anyone can tell me if this will work:
I have TMO M991 and I want to use it in Europe but have problem with network signal (not registered on network; missed calls & s... like that).
My guess is that radio is different and optimized for LTE, which we dont have here...
I m thinking of flashing I9505 stock rom and baseband...what do You think, will this improve radio reception/stable network signal?
I9505 is the version used in Europe region...
I honestly tried to find similar topics, no luck so far so pls point me in the right direction if nothing else...
Cheers!

[Q] How to unlock SGH-i747m

How do I unlock the phone? I currently have Cm11 on it.
I want to ditch rogers (terrible service) so what do I need to do to unlock it?
side note, when I got the phone it was via future-shop warranty and they gave me a fido version and put my rogers sim in it, did they unlock it then?

SpacePotato said:
How do I unlock the phone? I currently have Cm11 on it.
I want to ditch rogers (terrible service) so what do I need to do to unlock it?
side note, when I got the phone it was via future-shop warranty and they gave me a fido version and put my rogers sim in it, did they unlock it then?
Click to expand...
Click to collapse
Since Fido is really owned by Rogers, your Rogers SIM may work in the phone if it was originally locked to Fido. To check whether it's unlocked or not, try putting in a non-compatible SIM (like Bell or Telus) and see whether it prompts you for an unlock code. If it does, you would need to purchase a code online or request one from the carrier. If it wasn't on Android 4.3 prior to the CM11 installation, you may be able to install stock Android 4.1.1 and free unlock. Either way, whether you are free unlocking or using an unlock code, you have to be on a stock ROM for it work. You can check your phone's settings and see what baseband and bootloader versions you have. This will tell us know whether you should flash stock 4.1.1 or 4.3

Larry2999 said:
Since Fido is really owned by Rogers, your Rogers SIM may work in the phone if it was originally locked to Fido. To check whether it's unlocked or not, try putting in a non-compatible SIM (like Bell or Telus) and see whether it prompts you for an unlock code. If it does, you would need to purchase a code online or request one from the carrier. If it wasn't on Android 4.3 prior to the CM11 installation, you may be able to install stock Android 4.1.1 and free unlock. Either way, whether you are free unlocking or using an unlock code, you have to be on a stock ROM for it work. You can check your phone's settings and see what baseband and bootloader versions you have. This will tell us know whether you should flash stock 4.1.1 or 4.3
Click to expand...
Click to collapse
Baseband is I747MVLUEMK5 bootloader I have no idea, I just used odin to flash CWM.
I'm open to flashing 4.1 to get a free unlock then going back to CM11

SpacePotato said:
Baseband is I747MVLUEMK5 bootloader I have no idea, I just used odin to flash CWM.
I'm open to flashing 4.1 to get a free unlock then going back to CM11
Click to expand...
Click to collapse
I747MVLUEMK5 is ver. 4.3 and you almost certainly have the 4.3 bootloader as well. With this, unfortunately, you can't downgrade to 4.1.1 where the free unlock option is available as any attempt to do this could brick your phone. You would need to request an unlock code from the carrier, if eligible, or purchase one online. There have been reports also that the unlock codes don't work when you are on a custom ROM so if you buy one online and it doesn't work, you will have to flash stock 4.3.

Larry2999 said:
I747MVLUEMK5 is ver. 4.3 and you almost certainly have the 4.3 bootloader as well. With this, unfortunately, you can't downgrade to 4.1.1 where the free unlock option is available as any attempt to do this could brick your phone. You would need to request an unlock code from the carrier, if eligible, or purchase one online. There have been reports also that the unlock codes don't work when you are on a custom ROM so if you buy one online and it doesn't work, you will have to flash stock 4.3.
Click to expand...
Click to collapse
ok, which carrier would I have to talk to, it was a fido phone as mentioned previously. Also is their a possibility I could downgrade to 4.1, or is it a guaranteed brick?

SpacePotato said:
ok, which carrier would I have to talk to, it was a fido phone as mentioned previously. Also is their a possibility I could downgrade to 4.1, or is it a guaranteed brick?
Click to expand...
Click to collapse
You would need to contact Fido since it was originally on their network. I'm afraid nobody has yet posted a method to allow you successfully downgrade to 4.1.1 and still preserve the free unlock functionality. You could follow some instructions posted in this forum to downgrade to 4.1.1. However, this wouldn't allow you downgrade the bootloader/modem which is required for the unlock.

Larry2999 said:
You would need to contact Fido since it was originally on their network. I'm afraid nobody has yet posted a method to allow you successfully downgrade to 4.1.1 and still preserve the free unlock functionality. You could follow some instructions posted in this forum to downgrade to 4.1.1. However, this wouldn't allow you downgrade the bootloader/modem which is required for the unlock.
Click to expand...
Click to collapse
ok thanks.

Larry2999 said:
I747MVLUEMK5 is ver. 4.3 and you almost certainly have the 4.3 bootloader as well. With this, unfortunately, you can't downgrade to 4.1.1 where the free unlock option is available as any attempt to do this could brick your phone. You would need to request an unlock code from the carrier, if eligible, or purchase one online. There have been reports also that the unlock codes don't work when you are on a custom ROM so if you buy one online and it doesn't work, you will have to flash stock 4.3.
Click to expand...
Click to collapse
I found a way to downgrade from 4.3 to 4.1.1 or 4.0.4 stock. (for Bell).
I bought and used Mobile Odin (available on the play store). Anyhow, it flashes the stock rom and not the old bootloaders. Once you're on 4.1.1 or 4.0.4 the problem is that *#197328640# no longer works. Basically when you type that ServiceMode comes up, but all the options are gone. I believe this is because they locked those features on the new bootloader (which is still on the phone after the Mobile Odin downgrade...)
Unlocking this phone has become a major pain in the ass.

htc_softbank said:
I found a way to downgrade from 4.3 to 4.1.1 or 4.0.4 stock. (for Bell).
I bought and used Mobile Odin (available on the play store). Anyhow, it flashes the stock rom and not the old bootloaders. Once you're on 4.1.1 or 4.0.4 the problem is that *#197328640# no longer works. Basically when you type that ServiceMode comes up, but all the options are gone. I believe this is because they locked those features on the new bootloader (which is still on the phone after the Mobile Odin downgrade...)
Unlocking this phone has become a major pain in the ass.
Click to expand...
Click to collapse
You are quite right. Sam and the networks are winning this time. You can indeed use Mobile Odin to downgrade the system (ROM). However, there hasn't been any reports of a successful downgrade of the bootloader. Therefore, even if you downgrade without bricking the phone, you can't free unlock. Tough but you will need a carrier unlock code.

Custom Rom While On Stock KitKat 4.4.2 ?

I Used To Own A Tmobile S3 Which I Enjoyed Using Custom Roms Like Cm 12, LiquidSmooth 4.1 And Pac Rom Just To Name A Few And The Lcd Broke . So One Of My Friend Is Selling Me A Used At&t S3 On Stock 4.4.2 For Quite Cheap. But My Problem Is ( Correct Me If Im Wrong) I Think I Read An Article Stating That You Cannot Use Custom Roms On S3s On Stock 4.4.2 Or It Will Brick It . Is This Correct ? An S3 Serves No Purpose To Me On Stock TOUCHWIZ . So Is It Possible To Root And Flash Custom Roms On S3s On OFFICIAL STOCK 4.4.2 TOUCHWIZ ?

Jaii_Versace said:
I Used To Own A Tmobile S3 Which I Enjoyed Using Custom Roms Like Cm 12, LiquidSmooth 4.1 And Pac Rom Just To Name A Few And The Lcd Broke . So One Of My Friend Is Selling Me A Used At&t S3 On Stock 4.4.2 For Quite Cheap. But My Problem Is ( Correct Me If Im Wrong) I Think I Read An Article Stating That You Cannot Use Custom Roms On S3s On Stock 4.4.2 Or It Will Brick It . Is This Correct ? An S3 Serves No Purpose To Me On Stock TOUCHWIZ . So Is It Possible To Root And Flash Custom Roms On S3s On OFFICIAL STOCK 4.4.2 TOUCHWIZ ?
Click to expand...
Click to collapse
The bootloader is not locked on the AT&T S3 (I747). You can use Odin to flash a custom recovery and flash any ROMs for d2att/d2lte you want. No unlocking required. It is a pretty modder friendly phone.
The thing you cannot do on the newer bootloaders is downgrade the bootloader. Attempts to downgrade anything beyond the 4.3 bootloader will result in a hard brick. This also prevents you from using the free sim unlocking method because it involves a firmware downgrade to 4.1. If you need to sim unlock the phone to use it on a different network you'll have to get a code from AT&T (they should provide one since a phone this old just about has to be off contract) or purchase one from a third party.

Jaii_Versace said:
... I Think I Read An Article Stating That You Cannot Use Custom Roms On S3s On Stock 4.4.2 Or It Will Brick It . Is This Correct ?... So Is It Possible To Root And Flash Custom Roms On S3s On OFFICIAL STOCK 4.4.2 TOUCHWIZ ?
Click to expand...
Click to collapse
I concur with @jason2678
I have an AT&T SGS3 (d2att/i747) that is on the NE4 bootloader and modem (4.4.2) and am running CM11 atm. As a matter of fact, none of the CM or AOSP roms since late in 4.4.2 development will run unless you are on one of the 4.4.2 bootloaders (NE4, NJ1, NJ2)
What you stated, quoted above, is true for the Verizon SGS3 (d2vzw/i535).

jason2678 said:
The bootloader is not locked on the AT&T S3 (I747). You can use Odin to flash a custom recovery and flash any ROMs for d2att/d2lte you want. No unlocking required. It is a pretty modder friendly phone.
The thing you cannot do on the newer bootloaders is downgrade the bootloader. Attempts to downgrade anything beyond the 4.3 bootloader will result in a hard brick. This also prevents you from using the free sim unlocking method because it involves a firmware downgrade to 4.1. If you need to sim unlock the phone to use it on a different network you'll have to get a code from AT&T (they should provide one since a phone this old just about has to be off contract) or purchase one from a third party.
Click to expand...
Click to collapse
Hello I am new here and could you please tell me the status of my phone since the phone does not provide me with option to enter unlock code after I inserted other carrier SIM.
I already have my unlock code given by AT&T.
I have CWM custom recovery installed
My phone info from Samsung Phone info Apps is
Bootloader version : I747UCUEMJB
PDA Version : I747UCUFNE4
CSC Version : I747ATTFNE4
Baseband Version : I747UCUEMJB
I have searched and tried with service mode method *#197328640# without success
Is Sim unlock related to bootloader
Thanks

car2carl said:
Hello I am new here and could you please tell me the status of my phone since the phone does not provide me with option to enter unlock code after I inserted other carrier SIM.
I already have my unlock code given by AT&T.
I have CWM custom recovery installed
My phone info from Samsung Phone info Apps is
Bootloader version : I747UCUEMJB
PDA Version : I747UCUFNE4
CSC Version : I747ATTFNE4
Baseband Version : I747UCUEMJB
I have searched and tried with service mode method *#197328640# without success
Is Sim unlock related to bootloader
Thanks
Click to expand...
Click to collapse
It appears that you have an NE4/Android4.4.2/KitKat rom installed over 4.3 bootloader and modem. I have seen several custom TouchWiz roms that run fine with this setup as long as one of a couple of custom kernels were installed. CM and AOSP roms will also run in this condition. BUT, from what I have read you will not be able to use the unlock codes. My reading indicates that you must be on complete stock ROM for the code to work, including stock recovery instead of CWM. ALSO, what I have read says that you only gt five attempts before the code becomes invalid.
I don't know why your phone is not asking for the unlock code, unless it has already been carrier unlocked. Even thouhg it is not asking for the code, does it function as it should?
Frequently the service modes do not work on custom roms, even TW based ones, because they are not using the stock dialers. I have also seen it reported that some were disabled with the 4.3 update and others in more recent updates.
Proceed carefully.

You may be able to enter the unlock code if the phone is running a stock dialler with a matching bootloader and modem combination.

dawgdoc said:
It appears that you have an NE4/Android4.4.2/KitKat rom installed over 4.3 bootloader and modem. I have seen several custom TouchWiz roms that run fine with this setup as long as one of a couple of custom kernels were installed. CM and AOSP roms will also run in this condition. BUT, from what I have read you will not be able to use the unlock codes. My reading indicates that you must be on complete stock ROM for the code to work, including stock recovery instead of CWM. ALSO, what I have read says that you only gt five attempts before the code becomes invalid.
I don't know why your phone is not asking for the unlock code, unless it has already been carrier unlocked. Even thouhg it is not asking for the code, does it function as it should?
Frequently the service modes do not work on custom roms, even TW based ones, because they are not using the stock dialers. I have also seen it reported that some were disabled with the 4.3 update and others in more recent updates.
Proceed carefully.
Click to expand...
Click to collapse
Thanks for respond
I had this phone since 3 years ago (new from ATT) and rooted stock rom with CWM 6.0.4.7 recovery touch . and I remember that I could unlocked through SERVICE MODE when I was overseas. ( sure I had used this phone with Other carrier) about 1 year ago I put this phone in my drawer I did factory reset and installed Stock firmware and update OTA to 4.3.
Last week I want to use this phone with Tmobile SIM but got Phone Not Allowed MM#6 message . The rom was still 4.3, Contact AT&T and got Unlock code.
but this phone didn't ask for unlock code entry option and still 4.3 , tried the whole weekend with service mode and upgrade to 4.4.2 via CWM recovery.
and still no luck
With your suggestion , it means that I don't have choice to downgrade back to 4.3 rom same with my bootloader and baseband? I heard we can't downgrade if we already in 4.4.2 , is that true?
But I still use stock recovery from CWM.
Before I proceed with replacing with stock recovery, is the stock recovery have to be 4.3 stock recovery or any version for S3? do I need to use odin to change to stock recovery?
if you have good link please help?
Thanks again
---------- Post added at 06:40 AM ---------- Previous post was at 06:33 AM ----------
audit13 said:
You may be able to enter the unlock code if the phone is running a stock dialler with a matching bootloader and modem combination.
Click to expand...
Click to collapse
Stock dialer means the entire Rom must be replaced to match my bootloader and modem combination or just replace the dialer in my case and still use 4.4.2?
Appreciated if you can help, thanks

Stock dialler requires a stock Samsung kernel.

From what I am seeing, you are on the 4.3 bootloader and modem. As I said before, there are custom TouchWiz 4.4.2 Roms that will run on the 4.3 bootloader and modem. Changing to a 4.3 rom, stock or otherwise, therefore would not be downgrading your bootloader and modem.
What rom are you on?
Some of the custom TouchWiz roms use dialers from the S5, therefore not stock for the S3.
Some of the custom TouchWiz Roms use the stock kernel, some use a custom kernel.
Did you flash a custom kernel?
What is your kernel version? (check under Settings > About Phone)
With the answers to the questions I asked, audit13 and I may be able to give more definite guidance. It could be as simple as flashing the stock kernel and a stock dialer. But, I can't tell at the moment.

car2carl said:
Thanks for respond
I had this phone since 3 years ago (new from ATT) and rooted stock rom with CWM 6.0.4.7 recovery touch . and I remember that I could unlocked through SERVICE MODE when I was overseas. ( sure I had used this phone with Other carrier) about 1 year ago I put this phone in my drawer I did factory reset and installed Stock firmware and update OTA to 4.3.
Click to expand...
Click to collapse
Are you saying you unlocked it before? If so it should still be unlocked. Flashing/wiping won't affect that, so it's pretty much a permanent thing. If so, maybe the Sim card you're using is an older one? they don't always work on tmobiles networks.
Sent from my SGH-T999 using Tapatalk

DocHoliday77 said:
Are you saying you unlocked it before? If so it should still be unlocked. Flashing/wiping won't affect that, so it's pretty much a permanent thing. If so, maybe the Sim card you're using is an older one? they don't always work on tmobiles networks.
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
audit13, dawgdoc, DocHoliday77
Thank you for your responses , Sorry I couldn't response any sooner as I worked in mountain/forest area that browsing the web is luxury
(yes I remember for sure I have used this cell phone overseas couple times and the way I unlocked through service mode. Way before AT&T OTA update since new)
I have weird situation that make me wondering if I had unlocked my S3 since message
"PHONE NOT ALLOWED MM#6" comes up if I use any other carrier beside AT&T
Per http://forum.xda-developers.com/showthread.php?t=2789917
thanks to OP
I just managed to change my bootloader to I747UCUFNE4 and also my baseband version to I747UCUFNE4
I still keep my CWM 6.0.4.7 recovery touch
I have Flashed with countless other rom such below:
I747UCUFNE4_Stock_Rooted_Odex.zip
I747UCUFNE4_Stock_Rooted_Deodex_3-31-15.zip
I747UCUFNE4_Stock_Rooted_3-31-15.zip
and even custom rom without any success
This was happened with my S3 after flash.
if I flashed with inserted active SIM Card (T Mobile or foreign SIM Card)
I will see PHONE NOT ALLOWED MM#6 after reboot
if I flashed without any SIM Card inserted after reboot :
- inserted foreign sim card and reboot again
I will have AT&T as roaming provider and for about few seconds received text message about fee from SIM issuer roaming to AT&T so means My S3 is unlocked...
(no... not so much!!!) in few minute I will have "PHONE NOT ALLOWED MM#6" and phone is useless as emergency only.
- inserted T-Mobile Sim Card and reboot again it shows "PHONE NOT ALLOWED MM#6" immediately
My Kernel Version :
3.4.0-1514807
[email protected] #1
Mon May 19 21:00:05 KST 2014
Thank you if you can help.

So you are not getting asked enter a network unlock code when running a stock rom with a foreign sim?
Does your provider use aws frequencies? The i747 does not natively support T-Mobile aws frequencies.

audit13 said:
So you are not getting asked enter a network unlock code when running a stock rom with a foreign sim?
Does your provider use aws frequencies? The i747 does not natively support T-Mobile aws frequencies.
Click to expand...
Click to collapse
No, It doesn't ask at all. just pop up "Phone not allowed MM#6."
my foreign SIM is ok.
I tested on Galaxy Note 4 T-Mo (unlocked) it grabbed ATT roaming,
tested on Iphone 4S (ATT-unlocked) it grabbed Tmobile roaming:laugh:
I just flashed stock recovery and still no go..
do I need to unroot?
Can I flash stock root rom with stock recovery
Thanks

What rom was on the phone when you inserted a foreign sim?
If you are running a Samsung rom, try this:
Www.unlockriver.com/Samsung-unlocking

I am using I747UCUFNE4_Stock_Rooted_3-31-15.zip
I just replaced CWM recovery with UCUFNE4 stock recovery
I did unroot with SuperSU and also
do factory setting through setting menu
basically my phone just as new factory setting but with UCUFNE4
the funny thing is :System Status: Custom is this related I have rooted this device before?
When I turn on bootloader mode (Odin Mode)
product name : SGH-I747
Current Binary: Samsung Official
System Status: Custom
Qualcomm secure boot : enable
warranty bit: 1
bootloader ap Swrev: 3
as I have stated at my 1st post that I had official unlock code from AT&T and got email from them the unlock PIN
but there is no option asking to key in the PIN with other carrier sim inserted .
I have checked also with Swappa esn check
and result is
Blacklisted => Not Indicated
This device does not appear to be globally blacklisted.
spent countless hours just to beat solving this device and read the threads and no result. And still "PHONE NOT ALLOWED MM#6"

i747m upgrading checklist

i have an i747m phone on rogers network (locked). it is still on original firmware version, although it is rooted.
i recently flashed lineageos.
since then the sim card is not recognised (no network). i am unsure what the issue IS, but i have been further educating myself for the last four days on this topic and am still unclear on some things. i wonder if you could answer some questions and give a bit of guidance.
here's what i know:
===============
made nandroid backup before upgrading to lineageos
phone worked fine before the update to lineageos
android version was 4.0.4
the bootloader and modem has not to my knowledge been changed since purchase -- i am the original owner.
the phone was rooted shortly after purchase by me
baseband is I747MVLLE8
bootloader is i747MVLALE8
os is now lineageos 14.1-20170828-nightly-d2att
### i can receive calls. phone does not ring, but there is visual notification and i can answer and talk.
### (update) i reinstalled lineageos and now incoming DOES ring. on the screen it says "incoming call via emergency network". i do not see any way to answer the call now, and even after hanging up the initiating call it continues to ring until reboot.
### (update2) i have been able to answer the "incoming call via emergency network" and it seems to connect normally. is this a glitch, or are "incoming emergency calls" a "thing"?
===============
i read that one of the likely reasons is "out of date baseband/modem/bootloader"
here's what i am unsure of:
===============
probable cause of "no sim"
should i upgrade bootloader? if so to what version and how?
should i upgrade modem? if so to what version and how?
anything else that should be updated?
what does "d2att" stand for and represent? is it part of the hardware/model of the phone? e.g. what is the difference between d2att and d2can?
is d2att the correct "thing" for the rogers network in canada for an i747m?
can i use heimdall and the images from sammobile.com to upgrade ONLY the modem and/or bootloader? if so, what files do i use (which one's are which?)?
if i use heimdall to flash the WHOLE sammobile "firmware" what happens? do i need to flash them all incrementally (v4.1, v4.2, v4.3 etc), or can i go from 4.0.4 straight to 4.4.2?
what is the minimum baseband/modem/bootloader that will work with lineageos 14.1 (android 7?)?
what are the drawbacks associated with upgrading the baseband/modem/firmware?
should i flash an older baseband first and try to unlock my sim or is that problematic in other ways?
===============
i am tech savvy and can follow complex instructions. i am not afraid of SOFT bricks as long as there is some way for me to revert. what IS holding me up is the fact that there are no clear directions (that i could find so far) for doing what i am trying to do, no clear indications of what the dangers are (that i could find so far), and (seemingly) conflicting information abounds. i understand (more than ever now) that this is a very complex topic and everything in this realm is unofficial. i would be very grateful if you could bring me up to speed on this topic a bit more, help me to understand things in more depth.
my goal is to update the phone the the newest lineageos (if that is possible and recommended), and to have full functionality. IF lineageos 14.1 is not to my liking, being able to revert to SOMETHING else would be great!
thanks so much!

The phone needs to be running the latest bootloader and modem to run the latest Lineage.
d2att is the moniker for the AT&T s3. The d2can is the Canadian version used by Canadian carriers other than Wind/Freedom, Videotron, and Shaw. The d2lte is the international version of the s3, although the d2att and d2lte ROMs may work on the d2can.

audit13 said:
The phone needs to be running the latest bootloader and modem to run the latest Lineage.
Click to expand...
Click to collapse
ok great to know!
do you know if i can update just the bootloader and modem and if so how? i have the file
I747MVLUFOB3_I747MOYAFOB3_RWC.zip
from sammobile.com (for the i747m rogers) which contains around ten files. which one is the bootloader and which one the modem (or does it work like that?)? there is a post here
ohthehugemanatee <dot> org/blog/2015/04/04/how-and-why-to-update-the-modem-slash-baseband-firmware-on-a-samsung-phone/
that talks about the theory (if not the exact practice for my exact phone) of how to do it. can you verify this would work as demonstrated using heimdall?
is it advised to do any of this with a locked sim? i am on the rogers network and would be flashing files/firmware (presumably) for the rogers network.
audit13 said:
d2att is the moniker for the AT&T s3. The d2can is the Canadian version used by Canadian carriers other than Wind/Freedom, Videotron, and Shaw. The d2lte is the international version of the s3, although the d2att and d2lte ROMs may work on the d2can.
Click to expand...
Click to collapse
since you did not list rogers there does that mean that i would have the d2can then? i used the d2att version of TWRP (as well as lineageos) -- do you think that is going to cause problems?
thanks very much for your reply!

Rogers, Telus, and Bell s3 are the d2can.
You unzip the file from sammobile.com only once to get a tar.md5 file that you flash in the pda/ap slot of Odin. Sim card is not required to be in the phone when flashing.
Using twrp and lineage for the d2att shouldn't be an issue since the att version of the s3 uses the same hardware as the Rogers s3.

audit13 said:
Rogers, Telus, and Bell s3 are the d2can.
You unzip the file from sammobile.com only once to get a tar.md5 file that you flash in the pda/ap slot of Odin. Sim card is not required to be in the phone when flashing.
Using twrp and lineage for the d2att shouldn't be an issue since the att version of the s3 uses the same hardware as the Rogers s3.
Click to expand...
Click to collapse
cool ok.
do you think i can go straight from 4.0.4 firmware to 4.4.2 (latest i think?)? is it recommended?

It should be no problem to flash the 4.4.2 stock rom over the existing 4.0x ROM.
Is the phone network unlocked? If not, flash the stock 4.1.1 ROM and use the free method to network unlock the phone. The unlock will be permanent.

audit13 said:
It should be no problem to flash the 4.4.2 stock rom over the existing 4.0x ROM.
Is the phone network unlocked? If not, flash the stock 4.1.1 ROM and use the free method to network unlock the phone. The unlock will be permanent.
Click to expand...
Click to collapse
cool. couple of questions:
1/ do i need to use a sim from a network other than my own (rogers) in order to complete the free unlock? many of the "free unlock" tutorials mention inserting "the new sim" in order to do the unlock.
2/ will this image (rogers 4.1.1) work for getting me the free unlock or do i have to use a pristine one?
https://forum.xda-developers.com/showthread.php?t=1739426
the reason i ask is that sammobile seems to require a premium account to get that older 4.1.1 image.
cheers!

You don't need a SIM card from another carrier to unlock on 4.1.1 but you need a SIM from another carrier to verify that the phone is unlocked.
Try updato.com for a stock Canadian 4.1.1 rom
https://forum.xda-developers.com/showthread.php?t=2529200
Don't flash beyond 4.1.1 until the phone is sim unlocked.

audit13 said:
You don't need a SIM card from another carrier to unlock on 4.1.1 but you need a SIM from another carrier to verify that the phone is unlocked.
Try updato.com for a stock Canadian 4.1.1 rom
https://forum.xda-developers.com/showthread.php?t=2529200
Don't flash beyond 4.1.1 until the phone is sim unlocked.
Click to expand...
Click to collapse
when i search for "i747m" on updato.com, the only 4.1.1 firmware they list is
GALAXY S III (Canada) SGH-I747M 4.1.1 December 21, 12 Puerto Rico (PCT) I747MUMBLL1
is that one suitable, being "region/carrier = puerto rico" or do i NEED rogers carrier?

Is your phone still locked to Rogers?

audit13 said:
Is your phone still locked to Rogers?
Click to expand...
Click to collapse
i have not tried the unlock yet (because of the carrier/region question) but yes i believe it is locked to rogers.
i guess i don't really understand what the differences are on my phone -- what they are for.
i believe that the i747 is a different hardware than i474m.
but i don't know if d2att is different HARDWARE than d2can for example.
and the "rogers" part, vs "telus" or "sprint" or whatever. i am guessing that that signifies the PROGRAMMING in the OS or perhaps the FIRMWARE as well -- but not the hardware... but i could be wrong.
when i "unlock" the phone from rogers network, when i dial the "special number," do i need a network connection or is that number something internal to the phone (no rogers network (or any other) needed)? in other words, can i "unlock" my rogers locked phone using the non-rogers firmware upgrade 4.1.1 ?

The hardware for the ATT s3 (d2att) and Rogers/Telus/Bell s3 (d2can) is identical except the US version uses different boot loaders and modem from the Canadian version.
The Sprint and Verizon versions of the s3 are CDMA, not GSM like the ATT and Rogers version.
Neither a network connection, SIM card, or SD card is not needed to use the menu method to unlock the phone. You will need a non-Rogers SIM card to test the phone after it is unlocked. Do not upgrade beyond 4.1.1 until the phone is network unlocked. Upgrading beyond stock 4.1.1 will permanently lock you out of the dialler unlock menu and you will have to buy an unlock code if you want to network unlock the phone.
You can use any 4.1.1 stock ROM from Bell, Telus, Koodo, Rogers, or Fido to access the dialler unlock menu.
Use Odin 3.07 and the original Samsung USB cable to flash the ROM in the PDA slot of Odin.
Make sure you have a backup of your data as things can go wrong during any flash process that may cause you to lose your data.
All of the information I have provided is something that I have personally done. I can provide no guarantee that you won't encounter a problem or brick your phone. Proceed at your own risk.

Any updates?

audit13 said:
Any updates?
Click to expand...
Click to collapse
yes i have updates! i finally got around to doing this today and...
i updated to 4.1.1 bell stock that you suggested. i used heimdall to do the flash instead of odin using this guide:
https://forum.xda-developers.com/wiki/Heimdall
other than that i followed your advice to the T
success.
i then did the menu unlock procedure (a few times). i don't know if it worked or not because i am unable to test with a different network sim yet.
i then went to version 4.4.2 from sammobile using heimdall again -- all went well.
i then installed the (for me) non-working lineageos from last week and it now works -- i assume due to the upgraded baseband you suggested. i am able to make and receive calls as normal now.
i then updated to lineageos 14.1 20170904 with gapps nano. and i can report that all is working extremely well.
thank you so much audit13 for working this through with me. i have learned a ton of new stuff, and not a single brick.
thanks again!

That's great news. Thanks for the update.
We're all here to help and learn