Develop Bugs

[Howto] Unlock Samsung (Most of them)

I searched for over a year to unlock my Samsung I600 and there is no detailed howto or even a real way to unlcok it.
Well I finally did it and wanted to share.
First of all there are 2 types of locking, there is "SIM Lock" and "Network Lock". for the first one there are a couple of threads around the internet, but for the "Network Lock" you need a code generated specialy for your phone using your IMEI. The "Network Lock" is something that is saved in the NV RAM and so kept through ROM updates.
In order to check what is your phone locked to type the following *7465625*638*#
You will be presented with the lock status of your device.
Now I haven't tried it for the SIM Lock but it should work for all types of locks.
Type this code *#0011#
You'll get into a test menu, click "Back" and "Back" again until you get to the menu where you have the "Common" options (usually 9). select that option and in that menu you have "NV Rebuild" choose that option.
And now simply select the option "NV Rebuild no RF Backup"
It will simply rebuild the NV RAM and erase all locks stored in it.
Tested on I600 and I780 mostly likely to run on I900 and more Samsung models.
And that's how you unlock I600 Network Lock.
Hope it will help someone.

Samsung Unlock ? What Abt Focus i917?
Does it work for AT&T Samsung Focus? Can someone verify?

How can I do this on my T-Mobile vibran???? After I "Type this code *#0011#" it's show a test menu and show message "Right hard key - Back button". So what is the right hard key??? - I fixed this thanks

mottomobile said:
Does it work for AT&T Samsung Focus? Can someone verify?
Click to expand...
Click to collapse
+1
I am curious if this works for the AT&T Samsung Focus as well. Anyone?

Don't work on Omnia Lite

amakaru............. I have the same phone, call t-mobile tell them you are traveling outside the country and that T-mobile doesn't provided service and you would like an unclock code, they will email your unclock code for your phone in 12-72, mine came in, little over 12.5 hrs

the code to reveal all the locks on the phone isn't working on my galaxy 5 for some reason. it just dissapears from the dialer and nothing happens.

Definitely does not work with the Samsung Focus

Sounds like he has a dev phone. Those features on not on normal roms.
If you guys need unlocks for devices. just hit me. esp galaxy S's.

Need unlock for Samsung Captivate

To get into the service menu (galaxy series)
*#*#197328640#*#* (works on more phones?)
MAIN MENU
[1] DEBUG SCREEN
[2] VERSION INFORMATION
[3] UMTS RF NV
[4] GSM RF NV
[5] AUDIO
[6] COMMON
[7] QXDM LOGGING
When entering into COMMON sub menu I have
[1] FTM
[2] DEBUG INFO
[3] RF SCANNING
[4] DIAG CONFIG
[5] WCDMA SET CHANNEL
[6] NV REBUILD
[7] FACTORY TEST
[8] FORCE SLEEP
[9] GPS
Cheers

Sprint Epic 4G doesn't work. Is this for GSM or CDMA?

OK! then what?

MojaveMike45 said:
Need unlock for Samsung Captivate
Click to expand...
Click to collapse
You can unlock your samsung Captivate easily.You can use the unlock code to unlock it from Network Lock,You can get the Unlock code from the site
Mobileunlocksolutions.com and unlock it from Network lock.

This is safe: http://forum.xda-developers.com/showpost.php?p=17148825&postcount=334
Cheers

galaxy y android
rhcp0112345 said:
Sounds like he has a dev phone. Those features on not on normal roms.
If you guys need unlocks for devices. just hit me. esp galaxy S's.
Click to expand...
Click to collapse
Sir, my sister's samsung galaxy y gt5360 is network locked. i'm seeking your expertise on how to unlock the phone. thank you

this tut doesn't work for my Y.
can anybody help to unlock?

I got "FUNCTION NOT IMPLEMENTED"

amakaru said:
How can I do this on my T-Mobile vibran???? After I "Type this code *#0011#" it's show a test menu and show message "Right hard key - Back button". So what is the right hard key??? - I fixed this thanks
Click to expand...
Click to collapse
i got the same message "Right hard key - Back button" how to get it working ??

it's doesn't work in galaxy y s5360l

[Q] Cannot unlock AT&T GS3 with unlock code

I bought a ATT Galaxy S3. The seller called AT&T and got the unlock code. I popped in a Simple Mobile sim card and it says "SIM network unlock pin". I then entered 8 digit unlock code got from AT&T. But it did work. Still asking for sim network unlock pin.
Has anyone had same problem. Is Simple Mobile causing this problem, since it's a prepaid network? Do I have to use one of the big GSM networks sim card to unlock first then use Simple Mobile sim card?
Any help would be highly appreciated.

try this
it worked for me on my 2nd s3 running 4.0.4 stock ics (just got) =)
make sure no sim card inside the phone yet, if there is, just take it out
Dial *#197328640#
Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone...
there won't be any confirmation just reboot your phone, put your sim back in, wait for about 10-30 seconds for your phone to pick up the network and kabaaam it is unlocked, the timing is important btw

Make sure the IMEI used to get the unlock code is 100% correct.
Secondly, if the phone has had previously failed unlock attempts on it, you may need to use a Defreeze code to reactivate an unlock attempt. The phone may be rejected the unlock code (even if correct) because of this.

pcshano said:
try this
it worked for me on my 2nd s3 running 4.0.4 stock ics (just got) =)
make sure no sim card inside the phone yet, if there is, just take it out
Dial *#197328640#
Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone...
there won't be any confirmation just reboot your phone, put your sim back in, wait for about 10-30 seconds for your phone to pick up the network and kabaaam it is unlocked, the timing is important btw
Click to expand...
Click to collapse
Strange. I thought this was only for 4.1.1. It didn't work on my wife's 4.0.4 but worked on my 4.1.1
Sent from my SAMSUNG-SGH-I747 using xda premium

pcshano said:
try this
it worked for me on my 2nd s3 running 4.0.4 stock ics (just got) =)
make sure no sim card inside the phone yet, if there is, just take it out
Dial *#197328640#
Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone...
there won't be any confirmation just reboot your phone, put your sim back in, wait for about 10-30 seconds for your phone to pick up the network and kabaaam it is unlocked, the timing is important btw
Click to expand...
Click to collapse
Without a SIM, my phone will not dial this code. I've read that if I just try thee Unlock code all 10 times, on the 11th time, it will work. Some Windows Phone forum said that worked for several people.

found this online and it worked for me
hazelinelee said:
I bought a ATT Galaxy S3. The seller called AT&T and got the unlock code. I popped in a Simple Mobile sim card and it says "SIM network unlock pin". I then entered 8 digit unlock code got from AT&T. But it did work. Still asking for sim network unlock pin.
Has anyone had same problem. Is Simple Mobile causing this problem, since it's a prepaid network? Do I have to use one of the big GSM networks sim card to unlock first then use Simple Mobile sim card?
Any help would be highly appreciated.
Click to expand...
Click to collapse
Do the following:
1. Make sure that the phone PROMPTS for the code with a NON accepted sim card and that your IMEI is correct by dialing *#06#
a. Go to the Dial pad and dial *#197328640#
b. Please click on number [1] UMTS > [1] Debugging screen > [8] Phone Control > [6] NETWORK LOCK
c. You will see 3 options
d. Please click on number [1] Perso Sha256 INFO, the screen will change slightly
e. Please hit the MENU button then when the menu pops up please carefully hit BACK to return to the previous screen
f. Next Please click on number [2] Perso Sha256 ON, the screen will change again to a one line message
g. Restart the phone on the screen by holding the power button and click RESTART
h. When the phone prompts for the unlock code simply enter the unlock code provided to you
i. Your phone is now permanently unlocked

4.1.2 unlock?
rcharity23 said:
Do the following:
1. Make sure that the phone PROMPTS for the code with a NON accepted sim card and that your IMEI is correct by dialing *#06#
a. Go to the Dial pad and dial *#197328640#
b. Please click on number [1] UMTS > [1] Debugging screen > [8] Phone Control > [6] NETWORK LOCK
c. You will see 3 options
d. Please click on number [1] Perso Sha256 INFO, the screen will change slightly
e. Please hit the MENU button then when the menu pops up please carefully hit BACK to return to the previous screen
f. Next Please click on number [2] Perso Sha256 ON, the screen will change again to a one line message
g. Restart the phone on the screen by holding the power button and click RESTART
h. When the phone prompts for the unlock code simply enter the unlock code provided to you
i. Your phone is now permanently unlocked
Click to expand...
Click to collapse
will this work with Android 4.1.2?

sumkindazombi said:
will this work with Android 4.1.2?
Click to expand...
Click to collapse
No. I have tried the unlock methods on the web that work for Android 4.1.1 on the AT&T Samsung i747, and they do not work on Android 4.1.2. I have been unable to find any accurate directions for unlocking this version, but there are apparently lots of people who will misdirect you to the old instructions for the previous version.

[Q] US Cellular Galaxy SIII (SCH-R530U) on T-Mobile network

I ordered a Samsung Galaxy SIII (US-Cellular) on ebay and tried to follow the instructions below:
1. Type *#197328640# and it brings up the factory service menu
2. Select (1) UMTS
3. Select (1)Debug Screen
4. Select (8) Phone Control
5. Select (6)Network lock
6. Inside the Network lock menu, Pick option (3) Perso SHA256 off, Passed that is a screen that says something like "no options in this menu, current command is 11863", Wait for 30-60 secs, from there hit the menu button on bottom left of phone to bring up options, Select "Back".
7. The last command should have brought you back into the Network Lock menu, at the bottom is (4) NW Lock NV Data Initialize, Select it. You might be asked a saftey are you sure, some people not, after it begins that process wait a good 60 sec the reboot. Thats it! Phones Unlocked
Somehow the phone is not reacting on the USSD 'secret' codes. I can push the hash-button, but nothing happens. I found on a forum that I should root my phone. So I did through Odin. But superSU keeps crashing and I get the error: Security Notice, an attempt to access a secure area...
I don't really need a rooted phone, would be nice, but I would like to use USSD codes, like *#06# for example.

R530 is CDMA based and might not function correctly on TMo.
Also, USSD codes only work on TW-Based ROMs or stock. Root should have no bearing.

Diego_AL said:
I ordered a Samsung Galaxy SIII (US-Cellular) on ebay and tried to follow the instructions below:
1. Type *#197328640# and it brings up the factory service menu
2. Select (1) UMTS
3. Select (1)Debug Screen
4. Select (8) Phone Control
5. Select (6)Network lock
6. Inside the Network lock menu, Pick option (3) Perso SHA256 off, Passed that is a screen that says something like "no options in this menu, current command is 11863", Wait for 30-60 secs, from there hit the menu button on bottom left of phone to bring up options, Select "Back".
7. The last command should have brought you back into the Network Lock menu, at the bottom is (4) NW Lock NV Data Initialize, Select it. You might be asked a saftey are you sure, some people not, after it begins that process wait a good 60 sec the reboot. Thats it! Phones Unlocked
Somehow the phone is not reacting on the USSD 'secret' codes. I can push the hash-button, but nothing happens. I found on a forum that I should root my phone. So I did through Odin. But superSU keeps crashing and I get the error: Security Notice, an attempt to access a secure area...
I don't really need a rooted phone, would be nice, but I would like to use USSD codes, like *#06# for example.
Click to expand...
Click to collapse
What you are trying to do is unlock the phone from US Cellular to use on T-Mo. If that's the case, you will have to downgrade the firmware to Android version 4.1.1. This does not require Rooting. You will see appropriate firmware on SamMobile.com. Try the same process after the downgrade.
Don't try the downgrade if you are on android 4.3. It will Hard Brick your phone.

[Q] Problems unlocking s3

Hey guys. You've probably had a bunch of posts like this, but I've spent the past day frustratedly searching up as much about this as possible and I still can't find an answer.
My mother gave me her old Galaxy S3 which had been network locked. I've checked the IMEI blacklist and it doesn't seem to be on 3 that you can check for free.
The phone is a UK Samsung Galaxy S3 GT-i93505, originally on contract to Orange. I used Odin and flashed the firmware from 4.1.2 to JB 4.1.1 as far as I know, so that I could unlock. Everything was successful.
I followed the numerous guides on entering Service mode > Debug > Phone Control >Network Lock > PERSO SHA256 OFF > SHA256_ENABLE_FLAG [0] SHA256_OFF=>Not Change > Current Command is 118630.
From here of course, I go back, hit NW LOCK NV DATA INITIALLIZ > PERSO_NV_INIT is SUCCESSFUL.
From here I wait, shut down, restart, enter my new sim, but nothing changes. Any network access is still locked. I've read on one forum that people have had success when they 'change' ENABLE_FLAG from [0] to [1], but i can't find any instruction on how to do this. I've also read that the process only works when the Current Command is 118640 not 118630, but after repeated tries the code will not change.
It's doing my nut in, I don't want to pay for an unlock code or some guy down the highstreet to unlock it when I see so many people doing it themselves...any help would seriously be appreciated, i'm new at all this.
Thanks!

Are you using the unlock method from this forum? If you are, it may not work as it is designed to work with the i747 and i747m.

ninpo-bugei said:
Hey guys. You've probably had a bunch of posts like this, but I've spent the past day frustratedly searching up as much about this as possible and I still can't find an answer.
My mother gave me her old Galaxy S3 which had been network locked. I've checked the IMEI blacklist and it doesn't seem to be on 3 that you can check for free.
The phone is a UK Samsung Galaxy S3 GT-i93505, originally on contract to Orange. I used Odin and flashed the firmware from 4.1.2 to JB 4.1.1 as far as I know, so that I could unlock. Everything was successful.
I followed the numerous guides on entering Service mode > Debug > Phone Control >Network Lock > PERSO SHA256 OFF > SHA256_ENABLE_FLAG [0] SHA256_OFF=>Not Change > Current Command is 118630.
From here of course, I go back, hit NW LOCK NV DATA INITIALLIZ > PERSO_NV_INIT is SUCCESSFUL.
From here I wait, shut down, restart, enter my new sim, but nothing changes. Any network access is still locked. I've read on one forum that people have had success when they 'change' ENABLE_FLAG from [0] to [1], but i can't find any instruction on how to do this. I've also read that the process only works when the Current Command is 118640 not 118630, but after repeated tries the code will not change.
It's doing my nut in, I don't want to pay for an unlock code or some guy down the highstreet to unlock it when I see so many people doing it themselves...any help would seriously be appreciated, i'm new at all this.
Thanks!
Click to expand...
Click to collapse
I think the free unlock method will still work for the UK variant. The instructions are slightly different, however. Try the following steps ...
1) Put a non-compliant SIM in your device and reboot with the SIM inside. Click on dismiss when prompted for unlock code
2) Go to the dial pad and in *#197328640#.
3) Do the usual [1] UMTS => [1] Debug Screen => [8] Phone Control => [6] Network Lock
4) Options [3 ]PERSO SHA256 OFF and wait for around 30 seconds.
5) Hit Menu button and click on Back. Then Choose [4] NW Lock NV Data INITIALLIZ.
Enter *#197328640# again using the Key Input
If this doesn't work, after the first time at [3] PERSO SHA256 OFF, hit Menu => Back then [2] PERSO SHA256 ON then Menu => Back and repeat steps 4) & 5) again. You will notice that the info in [3] PERSO SHA256 will have changed.

SGH-i747 Archived Downloads 2021 Walkthrough

I picked up a decent used SGH-i747 to use as a spare house phone. It was bone stock UCUFNE4, and I went through the rooting process, flashing TWRP, some custom ROMs, and restoring my nand backups. Yes, on a nearly decade old phone! I forgot how much I missed this phone after it took the splash.
DO THIS FIRST : Network / Carrier Unlock SIM
I was finally running my old system but then tried a Red Pocket SIM card...I didn't think ATT locked their SIMs. I don't remember having to unlock my old d2att, but I've slept since then. You'll most likely have to be on the stock OS to network unlock the SIM. *You get 5 attempts to enter the unlock PIN code.
Have your device and IMEI handy.
Follow the directions on ATTs unlock site https://www.att.com/deviceunlock/
Insert a non-ATT SIM card and turn on the phone.
After fully booting, enter 8 digit PIN unlock code you recieved from ATT.
If unlock is "unsuccessful", you'll have to go through extra steps.​​Extra Steps
Insert a non-ATT SIM card and turn on the phone.
After fully booting, cancel / dismiss the unlock code screen.
Open the Dialer and enter *#197328640# to enter the hidden Service Menu. If entering the numbers in the dialer does not open the hidden Service Menu, you'll need to return to stock firmware.
In the hidden Service Menu, navaigate to: [1] UMTS > [1] Debugging screen > [8] Phone Control > [6] NETWORK LOCK > [1] Perso Sha256 INFO
If the value for Sha256 is "0" and off, this is the problem why entering the 8 digit PIN code was "unsuccessful". We need to turn it on.
Touch your left capacitive Menu key opening a navigation menu, and touch the "Back" option. (not the right capacitive Back key, that will exit the Service Menu)
Select "[2] Perso Sha256 ON" (I'm not sure if it's actually on yet, or touching the item "Perso Sha256 ON" in the resulting cascaded menu turns it on, so I touch it also)
Touch your left capacitive Menu key and select "End" to close the Service Menu.
Reboot phone and now entering the unlock code should work.
Return to stock firmware
Assuming you have TWRP recovery version >= 3.0.2-0
Download bootloader-modem_I747UCUFNE4_4.4.zip to a micro SD card. (I've tried other bootloader-modem packages that didn't work)
Download I747UCUFNE4_Stock_Rooted_Deodex.zip to micro SD.
Backup or transfer to external storage anything you want to keep on internal storage. (*you might be able to skip internal storage wipe)
Make sure micro SD is properly mounted as portable storage in the device, and boot into recovery.
Backup system/data/etc. *optional
Wipe partitions: Dalvik, System, Data, Cache, and *Internal Storage
Install bootloader-modem_I747UCUFNE4_4.4.zip
Install I747UCUFNE4_Stock_Rooted_Deodex.zip
Reboot to system.
Root and/or flash TWRP with ODIN
[reserved]
Here is my SGH-i747 download archive. I never delete my shared files off Google Drive, so they'll be here. Everything you should need to bring this device under heel.
SGH-i747 d2att - Google Drive
drive.google.com

Hey, just want to say Thanks for this.
I had a Galaxy S III kicking around and wanted to put in back in action - just like you for a house phone. Up until about 1 year ago I had GBs of ROMs for the phone - and then did the housecleaning "Who will ever need this old stuff anyway???" and deleted the whole works. I realized the error in my ways when I started looking for the files this AM
So, you've got me back on track with your "One stop shop"
Cheers
PS. By the way - which of the ROM's did you find smoothest & most responsive to run?

xda_maddogdean said:
PS. By the way - which of the ROM's did you find smoothest & most responsive to run?
Click to expand...
Click to collapse
Seems like custom ROMs for this device were better than other droids I've had. I think Liquid Smooth was the best performer, but limited to KitKat apps.

ssurell said:
Seems like custom ROMs for this device were better than other droids I've had. I think Liquid Smooth was the best performer, but limited to KitKat apps.
Click to expand...
Click to collapse
Thanks for the tips