yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 Android Development] itzmydamnlyf:
works like a charm

I downgraded to MDC by flashing this in odin 1.85: http://d-h.st/cuC and unlocked it in few secs.

If i upgrade to 4.3 now will the unlock stick?
[Sprint Samsung Galaxy S 4 Android Development] bighleo114312:
I did this step by step 3 days ago i was stock mja went back to mcm ( only modem) and did the trick went back to mja and i rollimg good here in mexico

Enviado desde mi GT-I9505 mediante Tapatalk
[Sprint Samsung Galaxy S 4 Android Development] iru786:
Hi Guys,

i tried unlock two s4 for my friend. The first one worked fine using the instruction in post 1 but for the 2nd one, the S4 unlock tool is stock at "Completed. Phone Rebooting".

I have checked to make sure the modem is MDC. Any ideas what can be wrong?

Thanks
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
your galaxy s4 was activated in sprint? i did the same but when the phone is going to switch to 3g that damn lte 29 esm error message pop ups.
[Sprint Samsung Galaxy S 4 Android Development] bighleo114312:
Well i dont know exactly if it is i just know it was pure sprint apps and logos were everywhere. O dont know if this helps but i did root before doing all the steps. Then i just used the s4 unlocker it rebooted my s4 then when it woke it took like 3 seconds to show the signal of iusacell i did all tbis steps with my mexican sim in.

Enviado desde mi s4 mediante Tapatalk
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
i did the procedure rooted and unrooted and is always the same.. i can make and receive calls but when the phone is about to connect to 3g i get the error message.. i cant find anything about that error i dont even know what is the meaning.

when i go to settings->about phone--> status in network says "CLARO CHL" in network type says "UMTS" but in "my phone number" it says 000-000-6147 (i dont know if there is something wrong with that, that is not my phone number ).

someone has the mf9 modem only tar file to flash??? i found one in the forum but it also included the mf9 bootloader (so it failed), i need only the modem.. maybe with that modem this could work.. thanks!
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
damn im desperate to solve this thing..there is almost no info out there about this "LTE ESM 29 error" i found somewhere is some kind of authentication error.. but i dont know why says LTE im not using LTE at all.. i set this thing to gsm/umts or WCDMA only..

now i downgraded from MK2 modem to MDC modem again, and it is always the same..

any idea from the experts?
[Sprint Samsung Galaxy S 4 Android Development] bighleo114312:
Upps
[Sprint Samsung Galaxy S 4 Android Development] Andr3s:
Hello, this method still works for that are in the L720 4.3 version MJA

What I did was the following

1-downgrade the modem to MDC

2 - Dial *#9090# and select DM over UART, Restart the phone AUMATIC

3 - Dial ##3424# select USB setting QualComm PDA and select DM + MODEM + ADM

4 - Launch App S4 Unlock, press button, the phone restart

5 - Enjoy your unlock s4.
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
imag

subirimagenes

:(!!
[Sprint Samsung Galaxy S 4 Android Development] ehaalandtluk:
I used this trick back in September.

Worked great, but now I have this problem:

http://xdaforums.com/showthread.php?p=48730708#post48730708

Maybe it's related? Let me know if you can help. Thanks!
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
what rom and firmware are you using? i saw the screenshots in your thread and you get a lot of options to choose like global, gsm/wcdma/lte, etc..

i only have 3 options on my phone... cdma, cdma/lte and gsm/umts.
[Sprint Samsung Galaxy S 4 Android Development] ehaalandtluk:
Stock MDL. Problem is those options don't do anything.
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
download telinfo from the play store, with telinfo you can change that settings.

good luck.
[Sprint Samsung Galaxy S 4 Android Development] ehaalandtluk:
was able to change it using the diag tool... but the phone still has problems. See in my thread.
[Sprint Samsung Galaxy S 4 Android Development] N4Solomon:
Hi I'm currently using a Sprint Galaxy s4 and I recently downgraded the radio/modem to sim unlock it but after that I've been experiencing weird things with the calls and phone app force closing, so now I'm trying to upgrade the modem back to mf9 that was on it.....However when I try the "phone' option in odin with auto reboot unchecked it says FAIL, even when I use PDA and auto reboot it still says FAIL.....Help?

ODIN LOG

<ID:0/008> Added!!

<ID:0/008> Odin v.3 engine (ID:8)..

<ID:0/008> File analysis..

<ID:0/008> SetupConnection..

<ID:0/008> Initialzation..

<ID:0/008> Get PIT for mapping..

<ID:0/008> Firmware update start..

<ID:0/008> NON-HLOS.bin

<ID:0/008> NAND Write Start!!

<ID:0/008> Transmission Complete..

<ID:0/008> Now Writing.. Please wait about 2 minutes

<ID:0/008> Receive Response from boot-loader

<ID:0/008> aboot.mbn

<ID:0/008> Transmission Complete..

<ID:0/008> Now Writing.. Please wait about 2 minutes

<ID:0/008> Receive Response from boot-loader

<ID:0/008> FAIL! (Auth)

<OSM> All threads completed. (succeed 0 / failed 1)
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
my phone finally worked on 3G!.. i went out of the city today and the 3G worked immediatly!! i think the problem is that in Santiago (Capital of Chile) the phone tries by default to connect to the LTE network of my carrier (now im on a small city without LTE), but my data plan is only 3G... that's why i was getting the LTE esm 29 error (authentication error)..

now i have to find out how to make the phone stop trying to connect to LTE when i'm in Santiago... (i've tried the WCDMA only but it seems it doesnt make a difference, the phone tries to go on LTE anyway)
[Sprint Samsung Galaxy S 4 Android Development] MasterSe7en:
Ive got a solution for you, same thing i did, i use ATT, and ATT has multiple APN settings, they have a LTE Apn, and a H+ APN, i set the H+ APN, and no more trying to connect to LTE :)
[Sprint Samsung Galaxy S 4 Android Development] pvinodnayak:
Yes it will stick. If you have warranty and want to root your phone to moody it stay below 4.3 as Kn0x is introduced. And if you root your phone warranty will be void. For now there is not solution. Upgrade only if you do not have warranty.

---------- Post added at 08:03 AM ---------- Previous post was at 08:03 AM ----------

Set your 3G APN.

---------- Post added at 08:07 AM ---------- Previous post was at 08:03 AM ----------

When you ask a question its easier for anyone to reply if you provide all the details like qhich baseband you are on. MJA or MDC or MKA. The unlock works only on MDC so downgrade your modem only to MDC and run the unlocker and then upgrade your modem.
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
im not in the US so not ATT.. my carrier in Chile uses the same APN for LTE and H+.. but only this phone tries to go on LTE even if it is set on wcdma only or gsm/umts mode.

i dont know if there is any other thing that i can do to force the phone to go on H+ instead of LTE.. maybe i can change my data plan and get LTE, but we use the 2600 mhz band here and i don't know if this phone has supports that LTE band.
[Sprint Samsung Galaxy S 4 Android Development] laoh:
Hi, I got the domestic unlock to work and my phone's on Tmobile.

But I have a different request. How do I get this phone to work on Sprint again? I put the Sprint SIM back and selected CDMA/LTE but only voice and SMS parts work and I cannot get any data. Thus far, this has been a one way journey. I've been using this Sprint unlocked GS4 on Tmobile for a month now but now I'm ready to buy a Tmobile GS4 so I can get Tmobile's LTE (my area supports it), so I want to sell my Sprint GS4 but in it's current state, I won't be able to sell it.

Does this also have to do with APN settings? I used HiAPN to set Tmobile APN. Does something similar need to be done to set Sprint's back (and HiAPN or other APN setting apps doesn't directly set Sprint APN from what I've been toying with).

It's really not possible to backtrack the steps since I don't know the original settings. Any help would be great. Thanks!
[Sprint Samsung Galaxy S 4 Android Development] galexandr:
Good evening all. I have a small question, i currently have a Sprint S4 and unlocked using this method. Installed HiAPN and travelled to Brazil, everything worked fine. Now im in Europe, and when inserted Orange sim, go to set APN, i get the following message: Sorry, no suitable apn info for your SIM card...

I will however try to add APN manually since this option became available with 4.3, and see if that does anything to my data.

My current setup:

S4 Sprint Unrooted Unlocked.

SMS and Voice works

NO DATA

Previously rooted and set HiAPN as part of the stock apps (dont ask me how it got there, but i did a hard reset and it never went away, somehow its part of the phone)

My question, if manual APN doesnt work, do i need to root again? Any and all help will be appreciated.
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
try this: ##72786#

it will reset the settings of your phone and you will be locked again.. it should work fine on sprint after that. (if you want to unlock again you only have to follow the unlock guide again)
[Sprint Samsung Galaxy S 4 Android Development] keyro:
so if i buy one with 4.3 mja are telling me i can unlock the sim using this method? so is it possible to downgrade modem to mdc?????
[Sprint Samsung Galaxy S 4 Android Development] girishvk:
no option to get this work on MK2 update?
[Sprint Samsung Galaxy S 4 Android Development] rodmc123:
my phone keeps trying to connecto to LTE instead of 3g.. i dont know what else to do!!! my carrier has the same APN for 3g and 4g..

is there anyway to disable LTE ? im in gsm/umts mode.. and the phone tries to connect to LTE anyway.
[Sprint Samsung Galaxy S 4 Android Development] mocoyombiflash:
Bottom line if your on mja up your **** out of luck with this unlock i tried h20 net10 claro pr ssimple mobile tmobile it just doesn;t pick up signal!

I'm on 4.3 newest bootloader mja modem mja build

semi rooted (don't let supersu update)

i don't this works if you it wasn't done previous to an update sucks ass!!!
[Sprint Samsung Galaxy S 4 Android Development] 12manytimes:
Thanks Andr3s as I can confirm downgrading stock MJ4 4.3 baseband to MDC works :)
[Sprint Samsung Galaxy S 4 Android Development] vMAC:
Ok, so I did this SIM unlock about 3 months ago and it has been working fine. If I upgrade my ROM and modem to MK2 will it remove this unlock?
[Sprint Samsung Galaxy S 4 Android Development] mocoyombiflash:
where you unlocked before upgrading my to MJ4 or did you tried it on a freshly STOCK 4.3 that's never been unlocked previously!
[Sprint Samsung Galaxy S 4 Android Development] tictac_m:
i do not woring *#9090# or *#3424# but with adb comand (of first post) woring ok and 4.3 unlocking ok.
[Sprint Samsung Galaxy S 4 Android Development] 12manytimes:
fresh 4.3 downgraded modem via odin, unlock and then upgrade back
[Sprint Samsung Galaxy S 4 Android Development] snekiam:
How did you manage to downgrade?
[Sprint Samsung Galaxy S 4 Android Development] 12manytimes:
read my post..read the other guys post..use odin and downgrade modem..unlock..easy as 1-2-3....
[Sprint Samsung Galaxy S 4 Android Development] snekiam:
Does this work with the domestic unlock here: http://xdaforums.com/showthread.php?t=2530610 too?
[Sprint Samsung Galaxy S 4 Android Development] mocoyombiflash:
and your getting signal with what sim? mine reads the sim just not getting signal i have an x on top of my bars
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
Hello everyone and happy new year. today i just got my Spring Galaxy S4 and i want to unlock it. but i see that the basebank version is L720VPUEMK2, so the modem vesion is MK2.

i havent seen oin this threat anything about MK2 modems and in the before page it has been asked but noone answered.

So is there any solution to unlock the MK2 modem? i am from greece and i realy have to unlock it.

So my thought are to downgrade all the version to the MDC version. the whole firmware. Will it work? it is possible?

I have found in this link how to downgrade to MJA baseband, but still can i unlock it with MJA baseband?

On the other hand if none is possible is there any posibility to flash Custom Rom that is other version and can be unlocked?

I will spend all my day on this phone because i realy have to unlock it. If anyone knows i would apreciate to answer me so i wont have the fear not to do anything wrong and brick the phone.

So i Downgrades Succesfully to MJA, i will try to unlock it after some hours while i will come back home again.....
[Sprint Samsung Galaxy S 4 Android Development] Andr3s:
yes
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
So here goes my tries.

I had the phone on MK2 version and i thought i couldnt do anything, but i was wrong.

I downgraded to MJA version by flashing this via ODIN 307 Download MJA here

then i folowed the Andr3s methos that is writen here

after that i folowed the TS's continue guide and everything went perfect.

About the MSL Code any method does not work with any app or the terminal in the MJA version. Just download this file to your phone, install it and you will get your code easily.

Thanks everyone for the guides.

But now i have another problem and questions. so if anyone knows please help.

1) I am still on MJA version and unlocked the phone, i am from greece and we gave GSM/CDMA but in the phone setting there is no option that they are together, there is LTE/CDMA and GSM seperately and the phone works only with GSM option without giving any data.

Is there any solution to make the network GSM/CDMA? and what about the NO data problem>

2) Now that the phone is unlocked, can i make the MK2 OTA update and not to loose the unlock?
[Sprint Samsung Galaxy S 4 Android Development] rizwan5:
work great thanks

when i plug the phone into computer nothing happen so i try to do the ##3424# and nothing happen but when i press call to ##3424# it say connection problem or invaild MMI code please help i want to transfer file to my SD card
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
the "special dialer codes" (some are not working)

its either after the unlock.exe process or after downgrading the modem.

i think its after the unlock.exe but can not confirm yet.

what i usually do is:

flash back to mf9 stock

install philz cust recovery (reboot to system and select yes to fix root or whatever it says)

i then reboot back into recovery and install supersu1.85.zip and reboot

i then install es file manager and do the following:

Navigate to /system/app and rename the file "SprintDM.apk" to "SprintDM.apk.bak

Navigate to /System/Etc/Security and rename the file "otacerts.zip" to "otacerts.zip.bak

after that i reboot phone again

i now downgrade the modem to mdc

i then unlock.exe (phone reboots)

i usually continue with the domestic unlock guide at this point but i now am missing dialer codes as you mentioned

not sure which one does it but i bet its the unlock.exe
[Sprint Samsung Galaxy S 4 Android Development] rizwan5:
Any other code

After all the time it took me to unlock the phone now I'm stuck without the ability to use sdcard but I can just take it out and use sdcard reader to transfer files in and out. Hopefully someone help us with this workout having to hard reset the phone to flash new rom. Please someone help with the dialer code or tell me the different way to use sdcard
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
So i unlocked the phone with the MJA version and the MDC modem and now i have E+ and H+ network, the problem is that i cant get G and 3G netsork, and that is i thing because i cant put the WCDMA network. after i saw that everything was working i made the OTA update to MK@ version and in the phone info i still have this information

Software Version: L720VPUAMDC

Baseband Version: L720VPUAMDC

Build Number: JSS15J.L720VPUEMJA

And my problem is that the phone has Network Modes like this

1) CDMA

2) LTE/CDMA

3) GSM/UMST

4) Automatic

only the GSM/UMST works on me now

But the setting i want is LTE/WCDMA/GSM. is in this rom the settings like that? is there any option that i can get those settings in this rom? is there any other stock rom that i can flash and have in my settings the LTE/WCDMA/GSM (or at least WCDMA/GSM option?)
[Sprint Samsung Galaxy S 4 Android Development] pvinodnayak:
Only ##RTN# Will erase the lock. Nothing else can.

---------- Post added at 09:28 AM ---------- Previous post was at 09:27 AM ----------

Install TELINFO from google play, that has all the options in it.

https://play.google.com/store/apps/details?id=com.aebeinroth.telinfo
[Sprint Samsung Galaxy S 4 Android Development] pvinodnayak:
Install TELINFO from google play.
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
Thanks for the reply my friend, I will try it today

EDIT, on thisd app i got the message that the app is not compatible with my device....

The only thing i want is to make the option GSM/WCDMA as in the title, but i havent find it anywhere here.

I flashed the MK2 modem again and got wifi issue, so i flashed via odin the entire 4.3 MJA ROM (made data/factory reset first) and then made the OTA Update. now the phone works verry good without any problems, tha SIM card works well but it is at the GSM/UMST setting :( ...

So is there any option to make the network GSM/WCDMA as in the title in the official MK2 ROM?
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
I have searched all the Google and couldn't find anything. 2 days now I can't find anything about the wcdma.

Some guy said about hidden menu that makes it gsm/wcdma but I don't know how to reach there. By pressing *#0011# I cannot get in there, I read that on another threat.

So please anyone if know how to make gsm/wcdma I need your help to make it.
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
the mk2 firmware dont let you in there.

you have to downgrade to MDC/MDL modem

then you can get in there with *#0011#

either leave the MDC/MDL Modem or try and flash back to MK2 and let us know if the sim unlock sticks

i think *#0011# is avail in MJA too but not sure
[Sprint Samsung Galaxy S 4 Android Development] silverfox88:
Everything works fine but...

My phone is unlocked and working on Orange GSM with TW base rom, but if a put any rom base on 4.4.x it pick up the signal, SMS and Data works but incoming calls doesnt ring even if the other party hear the bip and went i try to dial out it doesnt hang up. Any sugestion?
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
i flashed the MCD Modem over the MK2 version and still the same menu on *#0011#, and about the setting, dunno whats going on.

in the settings i have sellected GSM/UMTS and it works only with that but the network i am getting is E/H/H+ that is HSPA, HSPA+ network. i cannot get any G or 3G?
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
if you flashed the MDC now do ##786# to RESET TO NEW

then do the unlock.exe

then do the *#0011#

quit changing stuff in "Network Mode"

that is NOT where you change stuff

you change stuff from *#0011#
[Sprint Samsung Galaxy S 4 Android Development] gpz1100:
Maybe the hidden menu option needs to be turned on in /efs/hiddenmenu ?
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
will the MK2 rom work with the unlock? or i will have to go back to MJA?

---------- Post added at 07:26 PM ---------- Previous post was at 07:25 PM ----------

that will need root, and i havent find to root the MK2...
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
read what you quoted me on
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
ye i read that. whats the weird :D ? the unlock method works with MJA version of 4.3 i havent try it with the MK2 version...
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
you have to be on MDC to run the unlock.exe (for it to work)

adjust your settings in *#0011#

flash the MK2 Modem only
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
not on the MDC version, i Had the MJA version and i unlocked the phone just flashes the MDC mode, the version was still MJA 4.3, then made the ota update to MK2 and works perfect. just cant get G,3G network, getting only E,H,H+
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
i was on mja.

i did a full ##768# to RTN

i then rebooted and let MK2 update

i then flashed MDC modem

i then ran unlock.exe

i then *#0011# and set settings

i then flashed back MK2 modem

dont mess with "Network mode" and you wont have to go into *#0011# again
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
I will try it tomorrow.

So if I touch the network mode setting I will loose settings again you say....

There won't be any option to switch 2g/3g too.

Isn't there any ROM that has tweaked that options?
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
there are a few roms that make it real easy

i think they say that they have MNC or MNE or something like that that automatically reads info from the sim you put in

basically they come with HiAPN or something like that

i tested one of the roms out when i had mf9 installed and it worked great

added my apn's automatically

"XTREMEPERIA_S4_V6" was what i used and it was good

i would hold on though as i have made a small discovery that could make our lives a little easier and no one has posted this yet.

i already did my testing....well i need to do a little more but it looks great so far.

dont set knox = 1 just yet :)

unless you really want to of course
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
My problem is that I am changing phones every month because I am basically testing them.

Every phone I get I am doing custom staff but this phone is a bit hard, it's not like others that you just flash recovery then ROM and you are good to go.

I haven't got the time to get info for everything on this phone and I don't have the time that much so I can learn everything. This phone is for my girlfriend, she is coming in a week and I have to make it working perfectly in Greek network and Turkish. That's why I am searching for the best solution. My opinion is to stay as much better to stock everything.

About the knox I still don't know anything. This phone has too many things separately.

If you want I am in position this weekend to try your finding and confirm that is working so you can make it public and help everyone.

The thing I want to learn is that I selected GSM and the phone gets HSPA signal. Why is that happening?
[Sprint Samsung Galaxy S 4 Android Development] en11gma:
if you want it basic just install that rom i pointed you to

it works out of box

the problem is you have to set your knox = 0x1

you ready to do that?

i think i am.

im just gonna turn this phone into a t-mobile and run google edition rom i think

someone mentioned it in one of the post replies here so if you would be kind enough to point me in the right direction i think thats what i want to do

the reason i want to turn it into t-mobile is because you dont have to mess with the APN's at all as att sim and tmobile sim work 100% out of the box
[Sprint Samsung Galaxy S 4 Android Development] leonleonleon:
i have find a newer version of that rom too (DARTHSTALKER_S4_X1.zip)

the problem is that i dunno about the knox, and i cant fint anything about that just saw somwhere that is some security. i have not any guarantee from the phone anyway.

and my real problem i want to know is that if it will work in turkey with this network too. with Turksell carrier the network is E,H,H+ too but i dont know if it will be any problem, i am rely interested to stay at stock.
[Sprint Samsung Galaxy S 4 Android Development] dragonhart6505:
cant for the life of me get this to work at all. MJA or MK2. somebody please throw up some step-by-steps or a video?

---------- Post added at 06:56 PM ---------- Previous post was at 06:43 PM ----------

ok i got the menu up...now please what settings to go to from Main Menu?