Database Users

dial code for checking the network lock/unlock

Which is the dial code to use for checking the network lock/unlock status on the Galaxy S4 ?
I tried *#74656525* and I get an error message
Thank you

mirceani said:
Which is the dial code to use for checking the network lock/unlock status on the Galaxy S4 ?
I tried *#74656525* and I get an error message
Thank you
Click to expand...
Click to collapse
I did purchase an unlock code from unlock-code-central.com. Put a different SIM, typed in the code, got the message all went well, however phone says "emergency calls only"
Can anybody please help me with this?
Is my phone unlocked or not?

mirceani said:
I did purchase an unlock code from unlock-code-central.com. Put a different SIM, typed in the code, got the message all went well, however phone says "emergency calls only"
Can anybody please help me with this?
Is my phone unlocked or not?
Click to expand...
Click to collapse
There was no need to purchase the code as there are several threads here on how to menu unlock it. But since we are beyond that, I'm guessing the other SIM is not provisioned and has no service on it. Try using a friends T-mobile SIM. That's how I was able to check the menu unlock method.

mirceani said:
Which is the dial code to use for checking the network lock/unlock status on the Galaxy S4 ?
I tried *#74656525* and I get an error message
Thank you
Click to expand...
Click to collapse
hamzer11 said:
There was no need to purchase the code as there are several threads here on how to menu unlock it. But since we are beyond that, I'm guessing the other SIM is not provisioned and has no service on it. Try using a friends T-mobile SIM. That's how I was able to check the menu unlock method.
Click to expand...
Click to collapse
Thank you for your answer.
I used a regular size Vodafone SIM which I just used in Europe last month, on my other phone, so that SIM should be ok.
However I used a SIM cutter to transform in into a microSIM . Visually looks ok too. Could it be that in this process the SIM (now microSIM) got damaged somehow?
When I first insert it, I was prompted for the unlock code, which I typed, got an ok message, but that's about it.
Now says "emergency calls only" and it does NOT prompt me for the unlock code anymore.
Original ATT SIM works just fine.
There's more: I just put that Vodafone microSIM into my wife's phone (which is unlocked) and it works fine.
So bottom line, I used an unlock code which apparently worked (got the message "network unlock successful") but the phone does not appear to be unlocked.
I will definitely try a T-mobile SIM as soon as I find one, but in the meantime which is that "secret code" to check network status for this phone?
*#7465625# does not work and returns "connection problem or invalid MMI code"
Thank you

anybody has the answer to my question ?
"secret" code for Galaxy S4 to check Network lock status
thank you

For those in need, check this: https://www.roamgalaxy.com/pages/ho...alaxy-s7-edge-s6-s5-s4-s3-s2-s-note-1-2-3-4-5

[Q] Rooted & unlocked i337 asking to insert sim

Hoping someone can help me figure this out.Created a new topic because it seems a bit different from the other "no sim" topic.
I have an i337 on MF3 that was rooted and unlocked using jortex's method and chainfire's region unlock.
http://forum.xda-developers.com/showthread.php?t=2387577
http://forum.xda-developers.com/showthread.php?t=2470551
I used it on Tmobile's network for about 16hrs without problem, then it suddenly started showing emergency calls only and asking to insert sim. I've place the tmobile sim in another phone and it worked fine, also put an unactivated AT&T sim in the S4 and it sees it. The phone is still booting up with the samsung custom screen. Any ideas on how to fix?
Thanks in advance.

unable to connect to mobile network

hi, yesterday i had this problem and i can't make call or send sms and navigate on internet.
wifi works
i was on cm13 original , i tried to clean flash again cm13, clean flash optimized cynogenmo13, flash update boatloader and modem and now i tried to flash last samsung stock rom but the problem is still here...
i tried to put my sim card in my dad's phone and it works, i tried to put his simcard in myphone and it doesn't works, so is a phone releated problem
what can i do?
thanks
p.s. i'm from italy and i'm on TIM

There's probably something wrong with the SIM tray.

in that case can i simple change it?
i forgot to say an important things, when i boot the phone, the phona asks me the pin like usual

Is the phone asking for the sim pin or phone pin? If it's asking for the sim pin, it could be a software problem.
You flashed the latest stock rom using desktop Odin?

double post

audit13 said:
Is the phone asking for the sim pin or phone pin? If it's asking for the sim pin, it could be a software problem.
You flashed the latest stock rom using desktop Odin?
Click to expand...
Click to collapse
i flashed first the last boatloader and modem, nothing changed so i flashed the last firmware for my country using odin and nothing changed again :/
If i try to make a call it say "non registrato sulla rete" that means "not registered on the network"
in settings, if i manual select the network, the phone try to connect but after few moments say "this sim cannot connect to the network" or something like that, but the same in another telephone works!

Is the phone asking for a sim pin or network unlock pin? Does the phone show the correct imei? Could the phone be blacklisted?

audit13 said:
Is the phone asking for a sim pin or network unlock pin? Does the phone show the correct imei? Could the phone be blacklisted?
Click to expand...
Click to collapse
the phone asks sim pin
the phone show the same imei that is written on the case
i don't know if could be backlisted, is a phone bought by a industry that have a contract with Vodafone, i also asked if the industry had some problem with Vodafone but they said no so i think there is no reason to black list
thanks for the help!
edit:
the guys from the factory just call me back and he said that he was wrong, they had a misundersteing with vodafone and the locked the phone, now they clarified and they are going to unclock it in 72hrs!

Can't write sim unlock code, please Help

Hi.
I bought a locked s8+ from Telcel México. I want it to use it on Att, I have the unlock aim code. The problem is when I instert the att sim I got a message "SIM network PIN blocked. Enter Sim network PUK." and a small lock blue icon. But I can't write anything, there is no keyboard option or anything. Any help? Thanks!

Have you tried another SIM card? Maybe read this: https://www.att.com/esupport/article.html#!/wireless/KM1000485
Sent from my SM-G955U using Tapatalk

I just unlocked my phone this weekend. A number pad should have appeared. If you didn't turn off the phone to change the SIM try restarting. If that doesn't work try a different card.
Sent from my SM-T710 using Tapatalk

Tried 2 different cards and had the same screen.
Now I flashed a new rom, that screen disappeared but now when I insert a new sim car got a new screen and now I can write the numbers. The problem is that I don't have the PUK code, I think that I need an unfreeze code, anyone knows how can i get that code? Or how can i unlock my phone?
Thank you!

Same **** with mine.
shimele said:
Tried 2 different cards and had the same screen.
Now I flashed a new rom, that screen disappeared but now when I insert a new sim car got a new screen and now I can write the numbers. The problem is that I don't have the PUK code, I think that I need an unfreeze code, anyone knows how can i get that code? Or how can i unlock my phone?
Thank you!
Click to expand...
Click to collapse
I got S8+ from f#c!¢n Telcel and paid for the Network Unlock code and have the same screen with the blue icon and cant do **** about it. With the new ROM ( Which one did you flash ) did you have any luck, have you unlocked your phone ?

shimele said:
Hi.
I bought a locked s8+ from Telcel México. I want it to use it on Att, I have the unlock aim code. The problem is when I instert the att sim I got a message "SIM network PIN blocked. Enter Sim network PUK." and a small lock blue icon. But I can't write anything, there is no keyboard option or anything. Any help? Thanks!
Click to expand...
Click to collapse
You need the PUK code for the new sim card - most print this on the card that you popped the sim out of. If you don't have the original outer card, then call the carrier for the NEW sim card you are trying to use and they should be able to help you.

Debranded Sprint LG G6 - Lost APNs

Hello readers and devs,
TL;DR
Debranded a Sprint LG G6 --> Factory & Hard Reset phone --> SIM card not being read.
-----
Need help getting my phone back on MetroPCS network after a debrand. I will try to be a thorough as I can for SEO robots and to explain as best I can what I did and what I noticed changing.
!!! action --> I debranded (unbranded, sic) my Sprint LG G6 993 phone using the code provided in the forums, hoping for the best.
I noticed the following changed after debranding:
APNs were locked (not able to create new or edit, however the MetroPCS APN was still there)
Sprint logo during boot gone
WiFi Calling option gone (was not working on MetroPCS network anyway)
mobile settings -> network mode -> GSM and Automatic options missing; set to LTE/CDMA
the cellular network connection to MetroPCS was not functioning properly
SIM card error when a phone call was made, no texting either
So, I naturally read through the forums to try to get the phone working properly again on my network. I read the topic Sprint LG G6 (LS993) Dial Codes.
!!! action --> I used the code ##72786# to "Reset provisioning and makes phone reactivate".
After that, I noticed that the MetroPCS APN was removed. APNs still not editable. At this point after reading some more on the forum I decided that I needed to get the phones MSL code, go into the service menu and edit the APNs from there. However, after getting the MSL and going into the service menu area, the APN area would still not allow me to edit the fields.
I went to MetroPCS to see if they could put a new sim card in the phone, hell for all I knew maybe my sim card was bad, remember when I try to make a call I get a SIM card error message. MetroPCS guy tries some things, calls up a service person on the phone, says nothing is wrong with the sim. Tells me to come back in 30 min. I go over to Sprint, give them the phone and tell them what is happening. They say the phone IS unlocked. Then a sales rep tells me that debranding the phone means that it is no longer a Sprint phone and they will not touch the phone. I ask nicely for a tech supervisor. Sprint supervisor says that I should try to Factory Reset the phone. I go home, backup the phone and do a factory reset.
!!! action --> Factory Reset the phone.
Changes:
mobile settings -> network mode -> GSM and Automatic options appear again; set to Automatic
Still unable to add or edit APNs (the APN area options are all greyed out).
!!! action --> I take out the SIM card and put it into my previous phone (Samsung Galaxy On5) thinking well i need a working phone.
I get an error, On5 is not connecting to the network, needs to be activated.
!!! action --> I take out the sim card and put it back into the LG G6.
Changes:
Invalid SIM card error (phone does not detect the sim card)
The SIM card is not being detected by the phone.
I read the forums some more and discovered a post that referenced a LG G6 that was debranded and to get it working again the owner had to buy a Sprint Prepaid activation SIM to re-provision the phone to get it working again on his alternative network.
I downloaded a SIM Card reader and the LG G6 doesnt give me any information on the sim card. If I put the SIM card into my On5 phone and use the SIM Card reader app I can see that my SIM card is okay and all data is displayed properly for the SIM.
I am not really sure what to do, but try to get a Sprint SIM card and put it in to try to reprovision the phone to Sprint and then move it back over to MetroPCS.
Please help what should I do now to get the phone back on MetroPCS?
Thanks,
Trumpet

TrumpetWinsockError said:
*SNIP*
I downloaded a SIM Card reader and the LG G6 doesnt give me any information on the sim card. If I put the SIM card into my On5 phone and use the SIM Card reader app I can see that my SIM card is okay and all data is displayed properly for the SIM.
I am not really sure what to do, but try to get a Sprint SIM card and put it in to try to reprovision the phone to Sprint and then move it back over to MetroPCS.
Please help what should I do now to get the phone back on MetroPCS?
Click to expand...
Click to collapse
Debranding?
The boot loader is locked so how can you modify anything on the phone?
First I would kdz back to stock.
That is install the version of software unaltered that should have come with the phone.
I'll leave it up to you to search in the QA section.
Once that is done, confirm the phone is unlocked.
You should need to do nothing more than to drop in the Metro SIM to have it work.
If the phone is not unlocked you will get "invalid SIM" messages.

tech_head said:
Debranding?
The boot loader is locked so how can you modify anything on the phone?
Click to expand...
Click to collapse
Firstly, thank you for the read and reply. I was able to debrand the phone utilizing a dial code found in this thread:
sprint-lg-g6-ls993-dial-codes
The thread states:
"##27263# (##BRAND#) - Removes any carrier branding and redetects the carrier based on (NV registry/RUIM/SIM?).
Note: Useful if flashing to Boost Mobile or similar carrier."
After debranding the APN area became un-editable.
tech_head said:
First I would kdz back to stock.
That is install the version of software unaltered that should have come with the phone.
I'll leave it up to you to search in the QA section.
Click to expand...
Click to collapse
I checked this thread:
list-lg-g6-stock-firmware
At this time there is not a Sprint LG G6 KDZ.
tech_head said:
Once that is done, confirm the phone is unlocked.
You should need to do nothing more than to drop in the Metro SIM to have it work.
If the phone is not unlocked you will get "invalid SIM" messages.
Click to expand...
Click to collapse
I need to confirm that the phone is unlocked. I did have a conversation with Sprint technician that said it came up unlocked in their system. It could be possible (although I don not know for sure) that the phone's hardware/software is locked and yet Sprint cell network has the phone unlocked in their system. Maybe I need to purchase an unlock service for the phone?

Have you tried this thread? https://forum.xda-developers.com/sprint-g6/help/mobile-gsm-data-issues-unlock-t3625705

I have the same issued. After "debranding" I can't add a new APN. In my case I do have voice and SMS, but no DATA since I can't add an APN.. Were you able to fix your phone. Please share the solution if you did. Thanks

ultra_dd7 said:
I have the same issued. After "debranding" I can't add a new APN. In my case I do have voice and SMS, but no DATA since I can't add an APN.. Were you able to fix your phone. Please share the solution if you did. Thanks
Click to expand...
Click to collapse
Im also having the sam issue
The only way to fix this is to insert an active sprint sim card with service and dial ##72786# to re-activate
Since i switched to metro pcs ......my sim service is not active
I gotta find someone

ultra_dd7 said:
I have the same issued. After "debranding" I can't add a new APN. In my case I do have voice and SMS, but no DATA since I can't add an APN.. Were you able to fix your phone. Please share the solution if you did. Thanks
Click to expand...
Click to collapse
is your problem solved?

same problem
i have the same problem but i select de uicc unlock and works my mexico sim but just only voice calls and text. apn still greyed out and says otasn on apn settings grayed out too. any solution for this ?

Try this:
Dial ​5689#*993# ; go to NAOT + NAO Test + NAO CARRIER (Select NONE).
After that you will be able to edit/add APNs