[Q] i'm a noob need some help please sgs3 - Galaxy S III Q&A, Help & Troubleshooting

ok i have a sgs3 i9300. i am from Trinidad and i use digicel. what i want is to use a different network.. so all i need is step by step instructions on how to root my device and also how to unlock my sim to use a different carrier.. if anyone can help it will be greatly appreciated.. please dont tell me use th esearch and blah blah blah.. i used it and still coudn't figure out how to unlock my sim... peace out..

You don't unlock "your SIM", the SIM is given out by the network provider and is registered to that network and nothing else.
If you want to use a different network, just get a SIM card from the provider you like the most, put it into your phone and off you go
If then again the phone is locked to a specific network or even the SIM card it came with, IIRC there's an app at the market that aids for unlocking, but I never had to use it so I'm not too sure about that.
As for the rooting question:
In the development forum of the I9300 area there is a thread about "CF Auto Root" - that's all you need.

HellcatDroid said:
You don't unlock "your SIM", the SIM is given out by the network provider and is registered to that network and nothing else.
If you want to use a different network, just get a SIM card from the provider you like the most, put it into your phone and off you go
If then again the phone is locked to a specific network or even the SIM card it came with, IIRC there's an app at the market that aids for unlocking, but I never had to use it so I'm not too sure about that.
As for the rooting question:
In the development forum of the I9300 area there is a thread about "CF Auto Root" - that's all you need.
Click to expand...
Click to collapse
i already put in the other sim and it says enter sim unlock.. can somone please help.?

Why not just read what you just quoted?
Checkout Google Play for an unlock app....

beating a dead horse here dude.....

Related

[Q] T-Mo Vibrant SIM issue

Hello all
I recently got a great deal for a Vibrant (150$ contract free, looking brand new ).
I live in Europe and I already own a Galaxy S, so I thought "hacking" the Vibrand would be a piece of cake... well it wasn't Finally after reading a ton of stuff here on the forums I managed to beat it using Odin.
After finally getting root the first thing I did was to download Galaxy S unlocker from the Market so I could use it with a local SIM card... and it failed. The app couldn't find any codes? and neither the root or non-root method worked.
The Vibrant recognizes that there's a SIM card, and even asks me for a PIN on boot... then nothing happens. When I try to make a call, "Data network not available" is displayed.
The network here is GSM 900/1800.
I'm currently on the deodexed KB5 2.2 ROM flashed via CWM.
Any help would be greatly appreciated
Hmm...I believe there was another method to unlocking it other than the Galaxy S unlocker program you have. It will require root which you have.
Search around the Vibrant forums, I think it was from at least a few months back.
}{Alienz}{ said:
Hmm...I believe there was another method to unlocking it other than the Galaxy S unlocker program you have. It will require root which you have.
Search around the Vibrant forums, I think it was from at least a few months back.
Click to expand...
Click to collapse
Yes, I found it but I'm not sure wheter it's a lock issue (it said "no codes found") or I have to flash an European modem or something. I'll try it anyway and report any results.
No luck
All the methods work for 2.1 and I'm on Froyo KB5.
Plus it's not really an unlock code issue..
It's rather... the SIM card doing nothing.
- Is it insearted?
Yes
- Does the phone recognize there's a SIM card?
Yes
- If you have a PIN, does it ask for it on boot?
Yes
- Well what's wrong then?
I can't do anything else with the SIM... not even join a network
Did you per any chance lock your SIM card with a PIN code?
Cause if you did, it is asking for the code that you locked it with. . .
Try another, UNLOCKED SIM card just to be sure that's not the issue.
The phone SHOULD ask you for an unlock code only. A pin code request (unless you are reading the unlock code as a pin code) means the SIM card is locked.
The card was unlocked, I put the PIN on purpose later, just to see if it'd recognize that
Then what is the issue? Without the PIN, it recognizes the SIM and loads up fine but doesn't get on any network?
Yes!
And that way it's just a VERY overpowered iPod touch. Would be nice if I could actually make phone calls from it, but if not - whatever.
I remember anything above 2.1 theres an issue with the SGS unlocker on the market. I had to use a different method, and I don't remember where I received the instructions from, but I did find this for you on youtube. Please do watch the whole video as the person has the same problem, but runs you through the steps to unlocking by using a different method.
http://www.youtube.com/watch?v=Swe5O5pChyo
gosh... no dice.
The phone never asks me for any unlock code, just stuck on "Searching"
Try a different modem. If not then try a different rom..may be?
Why not just odin back to stock,reroot, and try to unlock it before flashing a rom
Sent from my GT-I9000 using XDA Premium App
Will try that in the evening and report outcome ^^

[q] network unlock atrix att

Hi everyone I'm desperately looking for help... I got myself ATT&T Atrix which was claimed to be unlocked from US but unfortunately it's not, and I can't find any way to sim unlock the phone... I have tried everything else like rooting and putting custom Rom like ginger blur or rewriting the existing sbf file etc. and it still hangs on the start up with the message SIM NETWORK PIN etc.. what can I do since the actual phone is from the US and I'm in Australia... I tried calling att and they were unwilling to provide me an unlock pin
are there any sim unlock pin generators available ?
is there any app or script which blocks sim pin message ?
my imei is: 353648040718081
only way to do it right now is to buy the code off ebay...about $17 and its working. rooting or flashing will not unlock your atrix
nebg said:
Hi everyone I'm desperately looking for help... I got myself ATT&T Atrix which was claimed to be unlocked from US but unfortunately it's not, and I can't find any way to sim unlock the phone... I have tried everything else like rooting and putting custom Rom like ginger blur or rewriting the existing sbf file etc. and it still hangs on the start up with the message SIM NETWORK PIN etc.. what can I do since the actual phone is from the US and I'm in Australia... I tried calling att and they were unwilling to provide me an unlock pin
are there any sim unlock pin generators available ?
is there any app or script which blocks sim pin message ?
my imei is: 353648040718081
Click to expand...
Click to collapse
This post doesn't belong in developer, and if you read the sticky FAQ in the Q&A section it's all explained.
Thread closed due to above.

[Q] How to imei unlock Galaxy i9100 Telcel

Hey guys hope you can help me.
I bought the code to unlock the network on my galaxy i9100, currently is locked to telcel mexico.
The thing is that I put in an AT&T sim card and no imput is displayed to enter the unlock code, when I put a T-Mobil sim card a blue lock is displayed saying Network Lock and a button sayin dismiss but no input to capture the code.
So what should I do? I was seaching in several posts and I think that changing the rom to another not from telcel can allows me to capture the unlock code, do you know if that is true? if so, can you tel me, what ROM is compatible to my samsung galaxy I9100 from Mexico ?
Thanks.
SIM Unlock SGS2 Telcel
Hi, I got last week my SGS2 for Telcel and I'm afraid you waste your money with the code, don't worry I also bought an usefulness code.
I did these steps:
DIAL *#SIMLOCK# (7465625) you will have a popup displaying Personalization status, the option NETWORK LOCK [YES] means your mobile is locked for TELCEL, the other options displays OFF.
IF you have NETWORK LOCK [OFF] means your mobile is SIM unlocked.
First you need to root your device, look in the forum how to do that and download busybox.
Well to unlock download from the market the app Galaxy_S Unlock market.android.com/details?id=com.helroz.galaxysunlock (it works with S and SII)
Open the app and follow steps, WARNING there are two steps for number two, I used second one.
Once finished, reboot the mobile and dial one more time *#SIMLOCK# you will have now NETWORK LOCK [OFF]
However I installed a SIM from IUSACELL it doesn't work, what worked for me was downgrade the the version to 2.3.3 reboot with IUSACELL simcard adn voila it is working. After IUSACELL simcard is accepted I upgraded to 2.3.6
You can change the version, root, no matter which change, even restore to Telcel image and the mobile will continue unlocked.
I hope it works for you, if you have any problem just let me know via DM or my twitter @D4N13L0G
hugeband said:
Hi, I got last week my SGS2 for Telcel and I'm afraid you waste your money with the code, don't worry I also bought an usefulness code.
I did these steps:
DIAL *#SIMLOCK# (7465625) you will have a popup displaying Personalization status, the option NETWORK LOCK [YES] means your mobile is locked for TELCEL, the other options displays OFF.
IF you have NETWORK LOCK [OFF] means your mobile is SIM unlocked.
First you need to root your device, look in the forum how to do that and download busybox.
Well to unlock download from the market the app Galaxy_S Unlock market.android.com/details?id=com.helroz.galaxysunlock (it works with S and SII)
Open the app and follow steps, WARNING there are two steps for number two, I used second one.
Once finished, reboot the mobile and dial one more time *#SIMLOCK# you will have now NETWORK LOCK [OFF]
However I installed a SIM from IUSACELL it doesn't work, what worked for me was downgrade the the version to 2.3.3 reboot with IUSACELL simcard adn voila it is working. After IUSACELL simcard is accepted I upgraded to 2.3.6
You can change the version, root, no matter which change, even restore to Telcel image and the mobile will continue unlocked.
I hope it works for you, if you have any problem just let me know via DM or my twitter @D4N13L0G
Click to expand...
Click to collapse
Thanks a lot for answer my question, I will root my device then.
Can you tell me, where did you get the roms? to downgrade to 2.3.3 and the other to upgrade 2.3.6.
Thanks.
pzyklone said:
Thanks a lot for answer my question, I will root my device then.
Can you tell me, where did you get the roms? to downgrade to 2.3.3 and the other to upgrade 2.3.6.
Thanks.
Click to expand...
Click to collapse
you can find them in this thread.
http://forum.xda-developers.com/showthread.php?t=1075278
Cosmic Blue said:
you can find them in this thread.
http://forum.xda-developers.com/showthread.php?t=1075278
Click to expand...
Click to collapse
Thanks for your help guys
What ROM is compatible, I downloaded one from the link above, one from telcel, and works fine the problem is that when I switch the sim card it says that is network locked, so I need another ROM but i dont know what is compatible with telcel, any help?
Thanks
thanks to hugeband here is the guide that he sent to me to downgrade the galaxy s2(telcel), the only proble, that I had, was that i return to android 2.3.6 from telcel, and the Rom is locking the sim card again....
to get the guide please send me a PM or to hugeband and we will send you the URL.
There's something odd, I unlock the galaxy s2 with the method described here and I am pretty sure that it is woking, since my GS2 is using now a T-Mobile sim card, well, the odd thing is when I switch the sim card for an AT&T sim card, the GS2 is still displaying the sim card error message.... I don't have the telcel rom anymore but this message is still happening. Odd thing.
Similar problem
Hi i have a similar problem. my network block is off but I still can't use my iusacell sim. The problem is that i am already in 2.3.3. What should I do?
The problem is that Telcel's modem is a locked one, so even if your device is "technically" unlocked, the modem file will keep popping that annoying lock thing.
1) Dial this from your phone*#7465625#
2) If you have the network lock off, go to next step, otherwise try to follow the second post of this threat until your network lock is off.
3) Flash any rom (or modem file if you wish to keep telcel's crappy apps) from here http://forum.xda-developers.com/showthread.php?t=1075278 After carefully reading the guide posted by Intratech and then try to switch sim cards again.
*As always be very careful before flashing anything and read all of the instructions. No one can take responsibility if you mess something up except for yourself... If you follow the instructions to the letter you should have no problems, as myself and others have done this before.
*If you have any more questions please post them in this threat so more people can learn, I will not respond to PMs.
http://forum.xda-developers.com/show....php?t=1075278 Not working anyother links or forum?? i cant seem to unlock mines, same telcel i tried helroz method but still cudnt work but wen i dial *#7465625# everthing is off

[REQ/INFO] KDDI Au Samsung Galaxy S3 LTE [Model: SCL21]

Hello, I'm wondering if there is a guide or any info at all about rooting the KDDI's SGS3 LTE. I saw a bunch of thread for the NTT DoCoMo version but none about the KDDI version. No idea if they use the same hardware or not.
Root success by flashing CWM recovery and sgs3_rooting_supersu_v3.zip. Those tools are specified for Galaxy S3 NTT Docomo (SC-06D) but they also worked for Galaxy S3 Progre from AU KDDI (SCL21).
Just wondering how to unlock this SCL21, if anybody knows, please share.
brong said:
Root success by flashing CWM recovery and sgs3_rooting_supersu_v3.zip. Those tools are specified for Galaxy S3 NTT Docomo (SC-06D) but they also worked for Galaxy S3 Progre from AU KDDI (SCL21).
Just wondering how to unlock this SCL21, if anybody knows, please share.
Click to expand...
Click to collapse
I am also trying to find out a way to root my SCL21 but am having no luck. I have tried many of the "Universal 4.0.4 rooting methods" but have had no luck. Brong, would you mind sharing exactly what you did? The threads here http://forum.xda-developers.com/showthread.php?t=1999024 and here http://forum.xda-developers.com/showthread.php?t=1996940&page=2 warn about using the docomo method because it bricks the phone. Nothing seems to work with our model. Any help would be appriciated. Thanks.
madj1 said:
I am also trying to find out a way to root my SCL21 but am having no luck. I have tried many of the "Universal 4.0.4 rooting methods" but have had no luck. Brong, would you mind sharing exactly what you did? The threads here http://forum.xda-developers.com/showthread.php?t=1999024 and here http://forum.xda-developers.com/showthread.php?t=1996940&page=2 warn about using the docomo method because it bricks the phone. Nothing seems to work with our model. Any help would be appriciated. Thanks.
Click to expand...
Click to collapse
Hi,
First step is flash the CWM recovery via Odin. You can download CWM recovery from here:
https://docs.google.com/folder/d/0B...ZhbUE/edit?docId=0B98X7HyfoaGaNzNvR052dUp0Wmc
Choose this file: SC06D-JB-KBC-CWM-V6.0.1.2_r10-recovery-odin.tar.md5
Flash that file in Odin, choose the PDA in Odin.
I assume you already know how to flash via Odin, if you dont know just ask me again or try to browse other thread.
Step two is run the CWM recovery. Also, I assume you already know to get into recovery mode. Make backup first in recovery mode, you need to insert external SD card and save the backup in the card.
Step three, download this file sgs3_rooting_supersu_v3.zip from here:
https://docs.google.com/folder/d/0B...ZhbUE/edit?docId=0B98X7HyfoaGaR21wdXZweDdYSXM and save it to the external SD card that you used before.
Step four, run the recovery mode again and choose install from SD card, then choose external sd card and choose the file you donwloaded (sgs3_rooting_supersu_v3.zip). After completing all, reboot your phone and you will see the Super User app. Make sure you download root checker in Play store so you can check whether the phone are rooted or not.
Note: If you run the recovery, the screen will reverse. Dont worry, it works eventhough the screen reverses.
Thats all. I am looking the way to unlock this phone, *#197328640# doesnt work. If you have a clue, please let me know.
---------- Post added at 09:42 AM ---------- Previous post was at 09:27 AM ----------
madj1 said:
I am also trying to find out a way to root my SCL21 but am having no luck. I have tried many of the "Universal 4.0.4 rooting methods" but have had no luck. Brong, would you mind sharing exactly what you did? The threads here http://forum.xda-developers.com/showthread.php?t=1999024 and here http://forum.xda-developers.com/showthread.php?t=1996940&page=2 warn about using the docomo method because it bricks the phone. Nothing seems to work with our model. Any help would be appriciated. Thanks.
Click to expand...
Click to collapse
I see a Vietnam website with video on youtube. It shows that this phone has been unlocked.
http://choimobile.vn/threads/unlock-samsung-s3-scl21-au-kddi-nhat-ban.2699/
Any idea how to SIM unlock this phone?, really appreciate any help.
Thanks.
Updated:
I found a new thing regarding this phone. This phone doesn't support non LTE sim card, even you have micro sim (3G) card from AU KDDI. I am trying to find other LTE sim card from other carrier in order to check whether this phone works on that sim or not.
May be somebody can explain why this phone doesn't support non LTE sim. In case of Galaxy s3 LTE from NTT Docomo, it works when I used 3G sim (FOMA). I cut the 3G sim to fit the micro slot.
unlock for this phone
well, my purpose is/was to unlock this phone so I followed the samsung galaxy s3/note unlock method from here: http://forum.xda-developers.com/showthread.php?t=2014982
(I have/had this S3 Progre SCL21, the same phone in this thread)
I can access all the menu and procedure from that thread below, despite this phone being stock Android 4.04!
----------------
"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..."
---------------
I put 3G/2G sim card and the phone shows no service. I even put CDMA network sim, no luck. I don't know if this phone is unlocked. I'm wondering if this phone works only with LTE/4g sim. Right now, there's no 4G/LTE in my region
I assume the phone must support all other bands, if properly unlocked.
Now, I'm wandering through the threads and googling.
So far, I'm looking for Jelly Bean 4.1.1 for this phone, which doesn't seem to be available anywhere, even on samfirmware, only stock firmware
Root/flash CWM recovery and try some other unlock method from out there, (after making a backup Stock ROM and sensitive IMEI/NV data of course)
Please keep everyone updated and keep the spirit alive
aabhash said:
well, my purpose is/was to unlock this phone so I followed the samsung galaxy s3/note unlock method from here: http://forum.xda-developers.com/showthread.php?t=2014982
(I have/had this S3 Progre SCL21, the same phone in this thread)
I can access all the menu and procedure from that thread below, despite this phone being stock Android 4.04!
----------------
"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..."
---------------
I put 3G/2G sim card and the phone shows no service. I even put CDMA network sim, no luck. I don't know if this phone is unlocked. I'm wondering if this phone works only with LTE/4g sim. Right now, there's no 4G/LTE in my region
I assume the phone must support all other bands, if properly unlocked.
Now, I'm wandering through the threads and googling.
So far, I'm looking for Jelly Bean 4.1.1 for this phone, which doesn't seem to be available anywhere, even on samfirmware, only stock firmware
Root/flash CWM recovery and try some other unlock method from out there, (after making a backup Stock ROM and sensitive IMEI/NV data of course)
Please keep everyone updated and keep the spirit alive
Click to expand...
Click to collapse
So do I, It's hard to unlock
Thanh_GSM said:
So do I, It's hard to unlock
Click to expand...
Click to collapse
As its not a I9300 nothing from this forum is of use .
Suggest a Google search .
jje
Actually this phone, SCL21 can be used with LTE sim card only. I already tried to use non LTE sim card from KDDI AU with no luck.
What I am thinking is actually this phone maybe unlock-able by using the procedure as you mentioned (NW Lock NV Data INITIALLIZ). Since the phone can only be used with LTE sim card, we need to try LTE sim card from other carrier in order to test.
The problem is I dont have other carrier LTE sim card right now, if you have you can try it.
Update: Also I am wondering how to make this phone works with not only LTE/4G but also with 3G/CDMA. I changed the band to automatic, but there is no luck. I think this phone is locked to be used only with LTE/4G sim card. So, if somebody knows how to deal with this matter (make the phone not only accepts LTE/4G sim card, but also 3G/CDMA sim card) please share with us here.
aabhash said:
well, my purpose is/was to unlock this phone so I followed the samsung galaxy s3/note unlock method from here: http://forum.xda-developers.com/showthread.php?t=2014982
(I have/had this S3 Progre SCL21, the same phone in this thread)
I can access all the menu and procedure from that thread below, despite this phone being stock Android 4.04!
----------------
"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..."
---------------
I put 3G/2G sim card and the phone shows no service. I even put CDMA network sim, no luck. I don't know if this phone is unlocked. I'm wondering if this phone works only with LTE/4g sim. Right now, there's no 4G/LTE in my region
I assume the phone must support all other bands, if properly unlocked.
Now, I'm wandering through the threads and googling.
So far, I'm looking for Jelly Bean 4.1.1 for this phone, which doesn't seem to be available anywhere, even on samfirmware, only stock firmware
Root/flash CWM recovery and try some other unlock method from out there, (after making a backup Stock ROM and sensitive IMEI/NV data of course)
Please keep everyone updated and keep the spirit alive
Click to expand...
Click to collapse
Hi everyone ^_^
I just got the SCL21 about two weeks ago. I think it's really strange that even on the Japanese forums, there is very little info on rooting this model. From everything I've found, some Japanese sites also both say it's OKAY to root using the Docomo SC-06D recovery and Superuser zip while others say that it's NOT safe to use that same method and it will result in a bricked phone. Really odd, conflicting messages I think.
What is even more strange is the apparent issue with the screen "reversing"? One of the Japanese sites literally said the screen becomes "upside down" after flashing the SC-06D recovery.
Brong, since you got the root to work successfully , could you please elaborate on the "reversing" of the screen? Is the image upside down and only during the recovery mode? Also, do you know if the root caused you to lose the "osaifu Keitai" touch feature?
Thanks a lot to Brong and everyone else helping out with this model phone!!
Sent from my SCL21 using xda app-developers app
Status of SIM access
Hi,
I tested both a 3G micro SIM and a 4G LTE nano SIM from Softbank in this phone and neither card is recognized. The phone acts as though no SIM is inserted at all. (Complete with the "no smoking" symbol (circle with diagonal line through it) instead of a signal meter. I have confirmed that this phone is indeed sold already SIM unlocked from the factory as the MSL is 000000 just like the Verizon Galaxy S III which is also sold without a SIM lock. Additionally, KDDI lists the SCL21 and all other LTE phones they are selling since the debut last winter as being SIM unlocked devices.
According to some Japanese forums, they are suspecting that this phone has some type of hardware lock (hard locked?)... I contacted the only known person who was successful at using a 3rd party SIM on the Vietnamese Viettel GSM network as in a YouTube video. He wouldn't give me any details except that he must have the phone physically in his shop to modify it and it can't be done remotely. This individual also has screenshots showing the stock ROM version running in Vietnamese which makes me believe that he flashed something to the stock ROM to gain SIM detection of 3rd party cards.. Anyone have any ideas about such a hardware locking mechanism?
brong said:
Actually this phone, SCL21 can be used with LTE sim card only. I already tried to use non LTE sim card from KDDI AU with no luck.
What I am thinking is actually this phone maybe unlock-able by using the procedure as you mentioned (NW Lock NV Data INITIALLIZ). Since the phone can only be used with LTE sim card, we need to try LTE sim card from other carrier in order to test.
The problem is I dont have other carrier LTE sim card right now, if you have you can try it.
Update: Also I am wondering how to make this phone works with not only LTE/4G but also with 3G/CDMA. I changed the band to automatic, but there is no luck. I think this phone is locked to be used only with LTE/4G sim card. So, if somebody knows how to deal with this matter (make the phone not only accepts LTE/4G sim card, but also 3G/CDMA sim card) please share with us here.
Click to expand...
Click to collapse
decoding samsung galaxy s3 scl21
hello guys!!!! im a new member here ... i registered on this site for one reason and that is to help those people who have samsung galaxy s3 scl21 ... because i also got 1. I`ve been searching for months on how to unlock this phone so i could use it in my country (Philippines). I was almost loosing my hope because i was really eager to use this phone because of its features, a nice looking phone and its very expensive here in my country.
Few days ago i was browsing the net, i came across with this code *#197328640# that opened the window for me on how i could use the phone with any kind of sim card wether its LTE or 3G ..Im telling you guys the answers are all in that code
pinoyakooo said:
hello guys!!!! im a new member here ... i registered on this site for one reason and that is to help those people who have samsung galaxy s3 scl21 ... because i also got 1. I`ve been searching for months on how to unlock this phone so i could use it in my country (Philippines). I was almost loosing my hope because i was really eager to use this phone because of its features, a nice looking phone and its very expensive here in my country.
Few days ago i was browsing the net, i came across with this code *#197328640# that opened the window for me on how i could use the phone with any kind of sim card wether its LTE or 3G ..Im telling you guys the answers are all in that code
Click to expand...
Click to collapse
can you share step by step?
my phone need to unlock, please help
He's referring to the service mode. In that case, here are the steps to perform an unlock using the service mode (tested to work ONLY on the docomo models SC-06D and SC-03E; NO GUARANTEE IT WILL WORK ON THE SCL21):
1. Enter service mode by dialing the code in the dialer.
2. Press "UMTS".
3. Press "Debug Screen".
4. Press "Phone Control".
5. Press "Network Lock".
6. Press "Perso SHA256 Off".
7. Menu->Back (if the menu button turns up nothing, then just push "back") then wait 30 seconds.
8. Press "NW Lock NV Data Initallliz" then wait around one minute.
9. Reboot the phone and it SHOULD be unlocked. Works great on the SC-06D and SC-03E, no guarantees with the SCL21. And with the SC-03E newer basebands either hid it away or blocked it out so an older one needs to be flashed in before it will show up for unlocking.
Anyone looking to get one should only do so when they've got a trip to Vietnam in their future (to go get it done in a shop there; they still seem to be the only country with shops doing it) or be using au in Japan.
s3 scl21
that`s the first instruction i found when i was browsing the net and tried it but unfortunately it didnt work...... there are still settings in the service menu and all you have to do is click everything that has something to do with the wcdma to gsm..gsm to wcdma or g to wcdma something like that. There`s also a setting that tells somethin like resetting cant remember the exact word and you have to wait for 90 or 60 secs.and restart the phone .and then go back to changing gsm to wcdma .,there`s a setting also that you have to change the frequency .cant remember the step by step guide but because of my eagerness to use the phone i clicked everthing in the service menu and searched every command listed in there.(dont worry it will not brick your phone).After doing all that... this is what happened .. i thought i failed again because the no smoking sign was still there ...so what i did was i clicked the settings and i was so surprised that the menu for mobile network comes out meaning to say that i was able to unlock the settings on the network ..im telling you guys this is what vietnamese unlockers have been doing to unlock this phone that is why they need the phone physically....thats all thanks
And it never prompted for a SIM unlock PIN again? Somebody really needs to go through this carefully and document it; an SCL21 is only 24-25k yen in Japan; I've heard of people paying more to fix broken screens on their international/American S3s.
scl21
as far as i know this particular phone model (s3 scl21) from AU KDDI is not sim locked . The first time i inserted the 3g simcard, it didnt ask for a pin code or anything ...what i could see was the no smoking sign and the simcard icon is there in the apps menu.
it's diffcult to unlock... i can't use in my country... please help
pinoyakooo said:
as far as i know this particular phone model (s3 scl21) from AU KDDI is not sim locked . The first time i inserted the 3g simcard, it didnt ask for a pin code or anything ...what i could see was the no smoking sign and the simcard icon is there in the apps menu.
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Hi im from philippine also. Please help me on how to unlock samsung Galaxy s3 progre scl21. Thanks in ADVANCE.
Please help
i need stock rom for SCL21 ...
Please help me link
help
pinoyakooo said:
that`s the first instruction i found when i was browsing the net and tried it but unfortunately it didnt work...... there are still settings in the service menu and all you have to do is click everything that has something to do with the wcdma to gsm..gsm to wcdma or g to wcdma something like that. There`s also a setting that tells somethin like resetting cant remember the exact word and you have to wait for 90 or 60 secs.and restart the phone .and then go back to changing gsm to wcdma .,there`s a setting also that you have to change the frequency .cant remember the step by step guide but because of my eagerness to use the phone i clicked everthing in the service menu and searched every command listed in there.(dont worry it will not brick your phone).After doing all that... this is what happened .. i thought i failed again because the no smoking sign was still there ...so what i did was i clicked the settings and i was so surprised that the menu for mobile network comes out meaning to say that i was able to unlock the settings on the network ..im telling you guys this is what vietnamese unlockers have been doing to unlock this phone that is why they need the phone physically....thats all thanks
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Click to collapse
can you list out the step you taken ? i have 2 phones.

[Q] how do i unlock sprint galaxy s4 sph-l720T to use on cricket ?

ok,
I got my Unlock code from sprint for my galaxy s4 (sph-l720t), but trying to figure out how to actually unlock the phone so i can use it with Cricket. When I insert the Cricket sim card, it says invalid Sim Card. Ater searching the internet i have rooted it (whatever that means) using Odin...followed instructions and had no problems, but still cant use sim card. ..i also followed another website's advice that told me how to turn on developer mode and access data programming menu and then eventually download and run a program called s4 flasher .....but still says "invalid sim card" ......Can it be done? ...Its making me mad because i paid $600 for the phone and should be able to take it to any provider i want! ...Please, I Need Help! ......and when responding, please talk to me like i am an idiot, cause i dont know all the lingo (although i am somewhat tech savvy)
thank you for whoever is willing to help
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