Serius Network problem --> Solution Needed - MDA, XDA, 1010 General

I live in greece and have a vodafone sim.The phone is unlocked and worked perfectly.
Today i tried to put another sim and it didn'y read it so i tried to change the band (to 1900 from 900) nothing happened.
So I wanted to restore the band but then i realised that i couldn't access the band tab because it wasn't there.
There are no phone settings to change
I tried a hard-reset but nothing changed
Now every time i try to reinstall the T-mobile ROM 4.00.21 i get an error message telling me something about the connection while the same time activesync is on.I put the rom in the SD card but nothing appears.
I'm depressed and don't know what to do
Is there a way to change the band to 900
If not how can i install the same ROM or an older one.
I'm crying for help
Please help!!
1)In case i forgot now it has 1900 band selected
2)when i open thephne it says something to turn on the wireless radio and prompts me to enter a code i think what do i do there
Other times the phone wont open at all

Use the GSM band selector from the boot loader GSM menu

Could you please tell me the steps to do that.
I'm not very experienced with these thing.
The more you analyze the easier for me.

to get into the bootloader
you softreset the device while holding
down the power button

i got in the bootloader then...

IT says :
WALLABY Bootloader V5.15
GSM OK
By pressing action :
GSM TURN ON
already on reset
???

Related

No signal - phone does not want to register

hi there, my atrix does not want to register at operator.
My phone was always trying to use 2g cause of better signal.
I went to Admin menu (*#*#4636#*#*), changed to WCDMA preffered, but in about a minute it did not change. I tapped function key and then Select Radio Band, it was only USA - i tapped it.
So he do not even try to register at any operator.
but i can call 112.
there is no any band other thsn USA.
Our band are almost same
900/1800/2100
So at least some operators must register.
may be i can refresh the modem part via bootmenu?
Or is there a way to reflash the modem part?
thanx
motrola forum - https://supportforums.motorola.com/message/353262 same situation, but with other ppl.
i found a solution...
1. backup via CWM
2. phone reset
3. restore backup.

[Q] *#*#4636#*#*

Hi friends,
i was playing around with the title code of this topic.
After entering *#*#4636#*#* in my x10,i selected phone information,pressed the physical menu key on left of phone,than clicked "select radio band". In that there was only option under the "set gsm/umts band" which read "usa band".
I selected that and instantly lost network signal. I live in india and the phone is of usa at&t unlocked.
Now i am not getting signal. I tried to press the menu key again but it reads "usa band only". Tried to manully select network,but no luck.
Finally i also did factory reset,wiped cache partition,reflashed my wolfbreak rom ,but could nt get signal.
What else can i try?
is there any one who can help?
IS there anyway to rollback to original/default settings/bands?
any chance that there is a restore, or similar button inside that menu? Have you checked this?
Solution to incorrect Country Band selected
leechgod27 said:
Hi friends,
i was playing around with the title code of this topic.
After entering *#*#4636#*#* in my x10,i selected phone information,pressed the physical menu key on left of phone,than clicked "select radio band". In that there was only option under the "set gsm/umts band" which read "usa band".
I selected that and instantly lost network signal. I live in india and the phone is of usa at&t unlocked.
Now i am not getting signal. I tried to press the menu key again but it reads "usa band only". Tried to manully select network,but no luck.
Finally i also did factory reset,wiped cache partition,reflashed my wolfbreak rom ,but could nt get signal.
What else can i try?
Click to expand...
Click to collapse
Okay, here's the fix - I found this out because I did EXACTLY THE SAME (curiosity killed this particular cat!!) and PRESD BUTAN (USA Band) without thinking, on my Japanese X10 (SO-01B), which, as you did, set my phone to the wrong band for Japan. Duh!
Anyway on to the fix...
1) Bring up the service menu with *#*#4636#*#* at the phone dialer
2) Select Phone Information menu
3) Switch the phone to FLIGHT/AIRPLANE MODE (I did this by dragging down the top menu bar on my phone which is running a custom rom)
4) Press the menu key and SELECT RADIO BAND - you'll see the complete list of country bands - do NOT select a band yet....
5) Switch FLIGHT/AIRPLANE MODE OFF
6) Select the country Band you require - you should now see a success message.
7) Congratulations on getting your cellphone signal back
Regards!
psyphah said:
Okay, here's the fix - I found this out because I did EXACTLY THE SAME (curiosity killed this particular cat!!) and PRESD BUTAN (USA Band) without thinking, on my Japanese X10 (SO-01B), which, as you did, set my phone to the wrong band for Japan. Duh!
Anyway on to the fix...
1) Bring up the service menu with *#*#4636#*#* at the phone dialer
2) Select Phone Information menu
3) Switch the phone to FLIGHT/AIRPLANE MODE (I did this by dragging down the top menu bar on my phone which is running a custom rom)
4) Press the menu key and SELECT RADIO BAND - you'll see the complete list of country bands - do NOT select a band yet....
5) Switch FLIGHT/AIRPLANE MODE OFF
6) Select the country Band you require - you should now see a success message.
7) Congratulations on getting your cellphone signal back
Regards!
Click to expand...
Click to collapse
Tks 4 ur guide !
I have Japanese X10 (SO-01B) too. Now it's X10i ( Unlocked).
My phone restart when using 3G. I checked *#*#4636#*#* and it's show USA band. I'm From Vietnam ( East ASIA), so which Band must I select?
My Signal is OK, but still problem with 3G ( Reboot phone when using 3G ), what should i do?
Tks 4 ur help so much !
I have no signal too in my sony xperia z indonesia......can i help.
I try your trick,but not work in my device.... Only usa band in my device...
:crying:
I got to the menu as described but the only GSM/UTMS band available is USA. How do I get the others back?
radio band reset
Hey man,
i know this is a really old thread but this exact thing happened to me on my Nexus 6P. I'm in India too and now am stuck without any signal. I've tried everything from factory reset to flashing factory images . Were you able to resolve your issue?
Hi frinend
I was playing around with the title code of this topic.
After entering *#*#4636#*#* in my x10,i selected phone information
"Set preferred network type" - "Unknown"
Not set - Gsm , CDMA any
pleases Help
leechgod27 said:
Hi friends,
i was playing around with the title code of this topic.
After entering *#*#4636#*#* in my x10,i selected phone information,pressed the physical menu key on left of phone,than clicked "select radio band". In that there was only option under the "set gsm/umts band" which read "usa band".
I selected that and instantly lost network signal. I live in india and the phone is of usa at&t unlocked.
Now i am not getting signal. I tried to press the menu key again but it reads "usa band only". Tried to manully select network,but no luck.
Finally i also did factory reset,wiped cache partition,reflashed my wolfbreak rom ,but could nt get signal.
What else can i try?
Click to expand...
Click to collapse
Recently i also got into the same situation and the other day i had an early morning flight to catch, so i was in a hurry, i seeked all over the net but didn't got any solution other then flashing the ROM again which was a headache. Here i get you the solution of the same without formating the device !!
Boot your device to bootloader !! Execute following comands these worked on Motorola devices but will work on other too !!
Code:
fastboot devices
fastboot erase modemst1
fastboot erase modemst2
fastboot erase cache
fastboot reboot
somyatiwari59 said:
Boot your device to bootloader !! Execute following comands these worked on Motorola devices but will work on other too !!
Code:
fastboot devices
fastboot erase modemst1
fastboot erase modemst2
fastboot erase cache
fastboot reboot
Click to expand...
Click to collapse
hi, does erasing the modemst mess with the phone's communication functionalities? some forums are reporting problems after erasing the modemst (http://forum.xda-developers.com/moto-g/help/sim-status-erasing-modemst-t3160579) but it was on a different device. I'm on lenovo zuk z1, and having the same problem. I would like to try this solution out if it does not mess with the communication functions.
jflee said:
hi, does erasing the modemst mess with the phone's communication functionalities? some forums are reporting problems after erasing the modemst (http://forum.xda-developers.com/moto-g/help/sim-status-erasing-modemst-t3160579) but it was on a different device. I'm on lenovo zuk z1, and having the same problem. I would like to try this solution out if it does not mess with the communication functions.
Click to expand...
Click to collapse
Hey man, did you try in your zuk z1?
Hi friends,
i was playing around with the title code of this topic.
After entering *#*#4636#*#* in my SONY Z i selected phone information,pressed the physical menu key on left of phone,than clicked "select radio band".
I selected that and instantly lost network signal. I'm in india.
Now i am not getting signal. I tried to press the menu key again but it reads "usa band only". Tried to manully select network,but no luck.
Finally i also did factory reset,wiped cache partition,reflashed my wolfbreak rom ,but could nt get signal.
jflee said:
hi, does erasing the modemst mess with the phone's communication functionalities? some forums are reporting problems after erasing the modemst (http://forum.xda-developers.com/moto-g/help/sim-status-erasing-modemst-t3160579) but it was on a different device. I'm on lenovo zuk z1, and having the same problem. I would like to try this solution out if it does not mess with the communication functions.
Click to expand...
Click to collapse
No it doesnt
Stuck in bootloop
My Zuk z1 is not stuck on the cyanogen logo after doing this. Someone please help !!!
SurenSeven said:
Hey man,
i know this is a really old thread but this exact thing happened to me on my Nexus 6P. I'm in India too and now am stuck without any signal. I've tried everything from factory reset to flashing factory images . Were you able to resolve your issue?
Click to expand...
Click to collapse
I want to help, sorry for my bad english
- First u can download LTE DISCOVERY on your android, open it, switch to discover
- before u start the restart of network in Lte discovery you must get in to the *#*#4636#*#*, then select the phone information
- ok now start the Lte discovery switch to discover menu, then restart the network (you have 7 second countdown)
- then quick change to the select radio band (that you phone *#*#4636#*#* before) quick change the band to AUTOMATIC
- YEAHHHH woks
- no need flash or install your default rom
---------- Post added at 08:15 AM ---------- Previous post was at 08:08 AM ----------
I want to help, sorry for my bad english
- First u can download LTE DISCOVERY on your android, open it, switch to discover
- before u start the restart of network in Lte discovery you must get in to the *#*#4636#*#*, then select the phone information
- ok now start the Lte discovery switch to discover menu, then restart the network (you have 7 second countdown)
- then quick change to the select radio band (that you phone *#*#4636#*#* before) quick change the band to AUTOMATIC
- YEAHHHH works
Hope that help you all guys
Hi Brother,
I'm facing the same issue on my Nexus 6p in India purchased from USA. Do you have any solution to deal with this problem?
Thanks.
Omg! I posted this in 2012 ? After 5 years still people are facing this issue! As far as i can remember i had to reflash stock Rom to get it back to normal. Thanks everyone for replies

[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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can you list out the step you taken ? i have 2 phones.

LG Leon not getting 3G/4G in Spain

Hi,
I have just return from US and I got a LG Leon from MetroPCS to sty connected while there. Now that I am back I unlocked the phone via unlock app. My surprise came when I put me Spanish SIM card (Jazztel) and the phone only gets 2g connection. I have been searching the net and I found some threads on the topic but I can not make any of them work on my phone. First I tried changing the radio to Europe mode through *#*#4636#*#*, and I enter the test page but when I click the phone info button I get a message that states that I can not run that application on this device. I thought it was because I wasn't root so I rooted it. But before I could root I had to downgrade by flashing an older firmware. No way, I get the same message. I tried the hidden menu to see if I could find an entry to change the radio mode, or any type of LTE configuration. Hidden menu on my phone though 277634#*#. I also tried the anycut option, but I do not get any facility called LTE configuration or similar.
I am desperate and I do not know how to proceed. Any help is welcome
Thanks in advance

How to Reset Radio Cell settings / Force enabling SIMs after messing with Bands ?

Hi everyone,
First post on XDA after years looking for solutions for my smartphones here.
I was playing a bit with my Archos 50 Diamond (dual-sim, 2015), in order to use it as my main phone, as my current one is slowly dying. I purchased a new touchscreen I replaced myself as the former one was broken, and tried to put my SIM inside. No signal.
I tried a factory reset. Still no signal. SIM was detected, asked for PIN, but no signal. After searching in several forums, I managed to arrive on Radio Info settings. (code through dialer is *#*#46363#*#*, anyway I cannot access any code through the dialer, don't know why, so I arrive there using an app downloaded on Play Store)
As I was playing around, I chose "Choose Radio Band" and selected USA Band. Big mistake. All frequency were gone (GSM, LTE) and the "prefered network" option is stuck on "WCDMA only". Of course, I live in France, we use GSM/LTE frequencies, so no signal.
Moreover, the "Turn Radio on" button doesn't affect the radio cells.
After a few factory resets, I already tried the following :
- erasing modemst1 and modemst2, through fastboot. It resulted only in erasing IMEI, great. I restored IMEI through "IMEI changer.exe" I found on the web. Both IMEIs came back.
- enabling all necessary bands through CDMAtool (or Qualcomm QSPT/QXDM tools, it's the same process, using Android Diagnostic Mode) - All GSM/LTE bands will appear on the smartphone using an app like "Network Signal Guru". After that, I can change "prefered network" in "Radio Info menu", so this is better that stuck on "WCDMA prefered". But the SIM is now undetected, no PIN is asked, so I cannot even verify if signal is back.
- Adb shell su -c "radiooptions [arguments from 0 to 8, 0 resets, 5 turns on)" _ using option 5 will actually turn Radio on, but no effect on if the SIM is detected or not. By the way, it turns radio cell for 1st SIM, but not for 2nd (we can see it in "About Phone, State" in phone settings)
- Tried to edit build.prop in order to see what I can do, but I couldn't see no effects either.
- Tried to flash NON-HLOS.bin, but didn't help either. I couldn't find fsg file inside my factory firmware image zip.
So for now, I know how to enable bands I need with CDMAtools, and turning on/off radio cell through adb shell or Terminal Emulator. However Radio Cell will turn off automatically on every reboot, need to turn on manually everytime I boot.
But SIM is not detected at all. I'm not sure if there would be some signal if SIM was detected, but it would be great if I could figure it at least.
Phone is rooted, STOCK firmware Android 4.4, no existing custom ROM, can boot into CMW if needed.
I've tried a lot of tutorials, I don't even remember which ones I did or not, but I'm pretty sure I couldn't find solutions on XDA or stackexchange at this moment.
If you can help, thanks in advance
Cheers
Samuel
Hello. is the replay to this post?
I have asus rog phone 6 and have same problem. after mess with "SELECT RADIO BAND USA BAND, cannot access internet. tried the soltioins from online bootloader erase modem. but not access. when I boot into bootloader it stuck on wait for any devices. asus rog bootloder does not have any settings, its empty.
anyone can help?

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