Hi,
I have Samsung GT-P7300 (tab 8.9) which has been bought in USA. It supposed to be unlocked (at least that is written on the Amazon product page).
I live in the middle east, when I put local SIM card (it's well secured-in, I can hear the 'click') and navigate to
Settings -> Wireless & Networks -> Mobile Networks
I receive the following error message:
"Insert SIM card to access network services".
The device supports the following network:
2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 850 / 900 / 1900 / 2100
But my mobile company supports
850/900/1800/1900 GSM 850/900/1900/2100 UMTS
I'll be glad to hear some ideas.
Thanks.
Have you tried to put your sim in another device to check if it's going online? The supported networks from your provider matches with the tab, so that shouldn't be the problem. I think if your tab is locked you should get a different message, then the one you are getting now. Are you sure the sim is o.k. and put in the right way? Do you have stock firmware or custom?
I had the same problem (here in peru), my issue was because there was not MODEM flashed in the tab.
What i did, was to go to samfirmware.com, download the apropiate MODEM.bin file and flash it via ODIN. After that, everybhing works ok.
You can check if there is a MODEM flashed by looking at the ABOUT section on the configuration panel on the tab.
If you dont have a clue about what is flashing, what is modem or what the hell i am talking about, write me a pm or post it here, so i can give you a brief explanation (i am no expert, but i can help a lilttle)
Thanks for your help, I already rooted my cell phone and flashed new ROM so I have some experience with advanced android stuff.
On which configuration file were u talking about: On the android settings or on Odin? Is you SIM cover not closing smoothly as well ? On my machine, tab 8.9, I need to force my SIM cover to be closed. Do I need to root my tablet first?
10x.
I had a similar problem with my p7500. A simple factory reset with the sim inserted while booting the first time after that helped.
Just tried, didn't help... Also tried Samsung firmware update - no success.
Thanks anyway.
Hopes to hear some more ideas.
Related
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.
I m from pune and,Recently I activated airtel 3g in my samsung galaxy ace... Bt problem is that I m not getting 3g signal.
In samsung galaxy 3 there are options like dual mode/3g mode,bt in galaxy ace when I go in mobile networks there are this options : enable packet data, data roaming, access point name, mobile operator, use only 2g networks.according to airtel customer care I should chk on enable packet data and unchk on use only 2g network options I did so bt still can't get 3g,signals..
I tried to use 3g signals in many places in pune..bt still I m jst,getting edge connection
Are you sure there is 3G network? If so, did you make sure that in APN list there is the one provided by your carrier for 3G ?
mastrone said:
Are you sure there is 3G network? If so, did you make sure that in APN list there is the one provided by your carrier for 3G ?
Click to expand...
Click to collapse
Yups I m sure that here in pune there is a 3g network and as I said I have already unchkd use only 2g network option..bt still can't get 3g signal...so is there any additinal settings that I mst do...
vj1 said:
Yups I m sure that here in pune there is a 3g network and as I said I have already unchkd use only 2g network option..bt still can't get 3g signal...so is there any additinal settings that I mst do...
Click to expand...
Click to collapse
Have you checked your APN settings?
Uncheck 2g mode only. If still you not see 3g symbol at left side of signal then in network setting go network operators and search available networks and choose airtel 3g.if still not get then go into keypad and type *#*#4636#*#* and select option phone imformation and in that you see gsm auto selected. In that choose wcdma only and press turn off radio then press turn on radio now press home button(not back button). You will get 3g. If not then reboot. I hope this will help you
You are using the wrong ROM or MODEM file with a Band Operator that's not supported for your company. Review the frecuency of your operator for 3G. Then, flash your phone with the correct ROM.
Hello everybody!
I installed the rom version 2.3.4 (vivo - Brazil) in my galaxy s5830L (3g 850/1900MHz). My mobile carrier works with 3G 2100MHz, so I can not connect to 3G only 2G (edge).
Do you know if there is any possibility to enable 2100MHz in s5830L 3G?
Thank you!
nims11 said:
Uncheck 2g mode only. If still you not see 3g symbol at left side of signal then in network setting go network operators and search available networks and choose airtel 3g.if still not get then go into keypad and type *#*#4636#*#* and select option phone imformation and in that you see gsm auto selected. In that choose wcdma only and press turn off radio then press turn on radio now press home button(not back button). You will get 3g. If not then reboot. I hope this will help you
Click to expand...
Click to collapse
Hey really thnks for ur help...bt I want to clear some doubts see as u said i mst select airtel 3g bt problem is in network operators I m jst getting airtel option not airtel 3g.
And in second method after entering that code u said to press home button is it the that big middle button..and how to again stop 3g...
Most imp I chked in samsung monte with same sim card of airtel in same area bt in that mobile 3g signal came immediately...
See I know I m asking u many ? Bt plz try to understand I'm new to this!!
iceman2029 said:
You are using the wrong ROM or MODEM file with a Band Operator that's not supported for your company. Revieew the frecuency of your operator for 3G. Then, flash your phone with the correct ROM.
Click to expand...
Click to collapse
How to review frequency of operator for 3g..
And one more thing when I tried with same sim card in same area on samsung monte I immediately got 3g signal jst after selecting 3g mode..so I want to know do u still think there is a problem with rom....
Hey I tried ur method of dialing that code and then changing it to WCDMA mode ..after selecting this option for some time in status it shows no connection like a white circle with cross line in it and after few seconds it again shows Edge connection ..and again u enter that code in that network type option it again automatically gets change to gsm auto!!
Now I m really getting frustrated by this problem I called Samsung helpline they said for using 3g in some mobiles u have to do a Software Update in Samsung Service centre after which u will get that 3g/dual network mode option in ur Mobile network settings like other mobiles, bt I doubt if they can really help me bcozz about 2 months ago I had already done a Firmware update earlier its version was KC1 and after update its version is KC7 which i think is the latest version of Firmware available in India for Samsung galaxy ace. I said this to Samsung technical Support but they say that Software update and Firmware Update are completely Differnet things…
So I want to know whether this Software update and Firmware update are this realy different Or its same. I have also Noticed one more thing in “Samsung galaxy Fit “also there is no Option like 3g/dual Network mode to Enable 3g!! is that option diabled in all galaxy Ace & Fit models or is it only in my cell???
Hey I tried ur method of dialing that code and then changing it to WCDMA mode ..after selecting this option for some time in status it shows no connection like a white circle with cross line in it and after few seconds it again shows Edge connection ..and again u enter that code in that network type option it again automatically gets change to gsm auto!!
Now I m really getting frustrated by this problem I called Samsung helpline they said for using 3g in some mobiles u have to do a Software Update in Samsung Service centre after which u will get that 3g/dual network mode option in ur Mobile network settings like other mobiles, bt I doubt if they can really help me bcozz about 2 months ago I had already done a Firmware update earlier its version was KC1 and after update its version is KC7 which i think is the latest version of Firmware available in India for Samsung galaxy ace. I said this to Samsung technical Support but they say that Software update and Firmware Update are completely Differnet things…
So I want to know whether this Software update and Firmware update are this realy different Or its same. I have also Noticed one more thing in “Samsung galaxy Fit “also there is no Option like 3g/dual Network mode to Enable 3g!! is that option diabled in all galaxy Ace & Fit models or is it only in my cell???
After selecting wcdma only turnoff radio and again turn on radio then push middal button called home button. When you doesnt want 3g mode tick on 2g mode only.
I also suffer from same problem when i use bsnl3g. You should camplain in airtel servise center because it is not fault of mobile but fault of network provider. If you want to chek then insert other sim and uncheck on 2g only and select access poit . If you get 3g then your mobile is not in fault. I want to know that you get 2g internet on that airtel card? And you choose access point?if not then select access point
nims11 said:
After selecting wcdma only turnoff radio and again turn on radio then push middal button called home button. When you doesnt want 3g mode tick on 2g mode only.
I also suffer from same problem when i use bsnl3g. You should camplain in airtel servise center because it is not fault of mobile but fault of network provider. If you want to chek then insert other sim and uncheck on 2g only and select access poit . If you get 3g then your mobile is not in fault. I want to know that you get 2g internet on that airtel card? And you choose access point?if not then select access point
Click to expand...
Click to collapse
dude i think u are not reading my posts completely..i can say this bcozz right from my first post of this thread i m mentioning that with same sim card of airtel i m getting edge connection..and the problem is not with sim card its with cell itself bcozz when i tried same sim card in other mobile i immediately got 3g signal in same area..that bcozz after lots of search on google i saw that many are facing this problem of 3g not connecting..its due to a software bug in froyo 2.2.1 so people say only way to solve this problem is we will have to upgrade our froyo to 2.3.3 or 2.3.4 this might solve our problems bt still i have some queries which i have to clear like see if u can ans them :
1. which one will be better to go with android 2.3.3 Gingerbread or 2.3.4 Gingerbread for Samsung galaxy ace I mean which one has less problems and will solve my 3g problem!!
2. after unofficially upgrading to 2.3.3 or 2.3.4 will I be able to officially upgrade to 2.3.5 through kies in future.
3. For upgrading to 2.3.3 or 2.3.4 is it necessary to root the phone..
4. how much time does a whole upgrade process takes if my internet speed is Minimum 1Mbps…
5. How to come back to 2.2.1 Froyo Default version from 2.3.3 or 2.3.4(Steps with video or Img link will be very helpful)
Update to 2.3.4 is realy easy and not require root. You should first download 2.3.4 flash file and after download use odin to install flash file. When official update comes you can downgrade your phone to froyo so kies update it to latest version so chill.
My email is [email protected]
contact me i will explain you how to update to 2.3.4 and where to download
nims11 said:
Update to 2.3.4 is realy easy and not require root. You should first download 2.3.4 flash file and after download use odin to install flash file. When official update comes you can downgrade your phone to froyo so kies update it to latest version so chill.
My email is [email protected]
contact me i will explain you how to update to 2.3.4 and where to download
Click to expand...
Click to collapse
K gr8 ..jst 2 questions how to downgrade back to froyo 2.2.1 I mean steps... And secondly does 2.3.4 gives any problem I mean any hangs, etc...
2.3.4 not hang atall. It remove lags from many games. I use it from 2 months and not get any problem. So just update. And abowt downgrade i post in my blog tomorrow. I hope you undarstand because you need to flash two firmware to get ddkc1(indian firmware)firmware back. So wait for that. But i ensure you that you will not downgrade in near future because gingerbread rocks
its due to a software bug in froyo 2.2.1 so people say only way to solve this problem is we will have to upgrade our froyo to 2.3.3 or 2.3.4 this might solve our problems bt still i have some queries which i have to clear like see if u can ans them :
Click to expand...
Click to collapse
Strange I use the same phone no issues getting 3G here in Mumbai on a Vodaphone network. In my phone under settings - wireless and network settings- Mobile Networks- the option of use only 2G networks is unchecked. Let us know if the firmware update rectifies the issue....
hey Dude any idea wat are Apn Settings for Airtel 3g ..
i mean :
Access Point name: ??
APN:??
Hi.
I bought ace S5830 from USA (and this phone only support 850/1900 Mhz), but i live in Azerbaijan and here I use mobile operator sim that only have 2100 mhz band for 3G network. Logically, my phone can not connect to 3G network. My question,
1.is it possible change the band?
2. If it is possible, how we can change, upgrade to new firmware ?
p.s. I have upgraded it to GINGERBREAD.UBKP7
Please help me to solve these issue,
Thank you before hand.
plese help me with problem above
I have a Samsung Galaxy Ace GT-S5830 and I flashed a Stock 2.3.5 Rom to my phone because I screwed up flashing a previous Rom. The Rom I flashed appears to be defaulted to Poland, I managed to change the language, but for some reason I can't get any Cell reception, I am unable to send texts or make phone calls. I checked the CSC and it is: XEO - Poland (Plus, Era, Heyah, Orange, Play). I don't know much about phones but this appears to be an issue since I don't live anywhere near Poland.
I have a Telus Sim card but it appears as if my phone can't connect to their network. Additionally, before flashing this Rom I was pretty sure that my only option in Network Operators was Telus, but now I have Telus and CAN Rogers Mobile INC. When I attempt to select Telus from this list it says "Registering on TELUS..." for around 2-3 minutes then says "Unable to connect to network, try again"
I live in Edmonton, Alberta, Canada.
When I go to About Phone>Status it says..
Network: Unknown
Mobile Network Type: UMTS
Service State: Out of Service
Roaming: Not roaming(although this appears to switch on and off, despite me being well within Telus coverage.)
Mobile Network State: Disconnected
Android Version: 2.3.5
Baseband version: S5830XWKS2
Kernel version: 2.6.35.7-perf-CL654989
[email protected] #1
Build number: Gingerbread.XWKS9
Do I have to install a Telus Canadian version of the stock firmware for 2.3.5 or could I possibly install stock firmware for 2.3.4 and update it through kies to get the appropriate CSC?(My phone is able to connect to Samsung kies)
I don't care if my phone has 2.3.4 or 2.3.5, either one would be fine with me.
Any and all help is greatly appreciated, ask me any and all questions.
MAJOR EDIT
I put *#7465625# into my phone to check the Network Lock and Sim Lock's and it turns out
Network Lock [ON]
Network Subset Lock [OFF]
SP Lock [ON]
CP Lock [ON]
Does this mean that I can't connect to to the network because there is a lock on it? If this is right I assume I need to go to Telus and have them unlock it, right?
Edit: I phoned *#2263# to get into a frequency selection screen and I selected: WCDMA Band Preference>WCDMA 850
Telus runs on 850/1900, I have the option to choose 1900, and the option to choose all(850/900/1800/1900/2100), there's also an option to choose "Automatic", should I stick with running 850, or risk running automatic and have it randomly jump around for unknown reasons? I know 850 will work in most areas I go, so it wouldn't be a serious drawback.
I think it's best to use the Telus firmware.....
Herpderp Defy.
I'm not entirely certain, but I don't think Telus has any official Firmware that the public has access to. If you have found any that would be appreciated, but as far as I'm aware, companies don't put that kind of thing out into the general public.
On Telusmobilitys site if you go to the section to update software I can see Samsung Galaxy Ace on the list but it says 2.3.4 and there are no available updates, which means I can't update it through that method.
Is the CSC being different an issue or just a small annoyance?
evanboy70 said:
I'm not entirely certain, but I don't think Telus has any official Firmware that the public has access to. If you have found any that would be appreciated, but as far as I'm aware, companies don't put that kind of thing out into the general public.
On Telusmobilitys site if you go to the section to update software I can see Samsung Galaxy Ace on the list but it says 2.3.4 and there are no available updates, which means I can't update it through that method.
Is the CSC being different an issue or just a small annoyance?
Click to expand...
Click to collapse
I'm a Singaporean but my Ace is set to XSR (or XER I forgot)
Herpderp Defy.
I don't think I clarified this in the op, there is only one option in the CSC list, which is XEO, Poland, I presume I need a Telus CSC, however, using the list found here
http://forum.xda-developers.com/showthread.php?t=787163
I can't find one that would work for a Telus phone.
Edit: My phones Network is now connected to "TELUS" and Service State is "In Service" but I still have to send messages 3-4 times before they finally say sent, sometimes taking up to 3 minutes to send a simple message.
If anyone knows any way to fix this I'd greatly appreciate it.
evanboy70 said:
I don't think I clarified this in the op, there is only one option in the CSC list, which is XEO, Poland, I presume I need a Telus CSC, however, using the list found here
http://forum.xda-developers.com/showthread.php?t=787163
I can't find one that would work for a Telus phone.
Edit: My phones Network is now connected to "TELUS" and Service State is "In Service" but I still have to send messages 3-4 times before they finally say sent, sometimes taking up to 3 minutes to send a simple message.
If anyone knows any way to fix this I'd greatly appreciate it.
Click to expand...
Click to collapse
I think there was a similar thread about this , try finding it
Herpderp Defy.
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.
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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
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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.
Hi everyone,
I've just recently acquired a Feiteng GT-N9300+ v2.
I've spend 2 days and already bricked the phone and restored it via the testpoint method, flashed cwm and rooted. But since the beginning i have a problem with the 3g. When i go to the engineering mode and i try to change to wcdma in the rat options it simply change back to gsm only.
I've checked other configs but everything seems ok.
The result it that i only have 2g.
I wonder if anyone with this phone or an mtk6577 has experienced this problem before?
PS: i have 3g network in the area and i have 3g with the same sim card on another phone.
PS2: In my area i think 3g operates as 2100mhz but from what i read the phone supports it.
Thanks in advance.