Network unlocked my phone a year ago - now it seems to be network locked again. Help? - Galaxy S6 Edge Q&A, Help & Troubleshooting

Hi, about a year ago I got a G925T and unlocked it to use on ATT network. Now, I've been gone the last 5 months or so and since the second or third day coming back my phone messed up and developed the FRP issue. I got that sorted out and have since used odin to load 6.0.1 and then installed TWRP, root, new kernel and rom.
But even after all this, I still have the network lock issue. IT says to me that network locked sim card is inserted. Is it possible that the issue is with the sim card not the phone? What could possibly cause the phone to re-lock itself? Any thoughts/suggestions?
Edit: Looked up the IMEI and it is clean, was when I bought it and seems to still be now so I don't think that is the issue.

Related

[Q] Can't seem to fully reflash SG Note 2 with stock ROM. Help please!

Hi, and firstly, thanks to any and all who offer their knowledge to assist my conundrum.
I recently purchased a Bell Canada version of the SG Note 2 (i317), I am on Telus so I attempted to Unlock the phone. I looked online and found people were having success unlocking these phones for free using the *#197327640# method, (whereby you go into the service mode, turn off the PERSHO_256 and then INITIALLIZ).
I tried this method and the phone then seemed to work with my telus sim, but only for voice, not data. When I put in a Bell SIM from a friend, both voice and data worked fine - which tells me its not a hardware (radio) issue. I also tried using another friends Telus SIM and had the same results as mine - which tells me it's not a SIM error. Also, all the settings in the mobile network area appeared to be correctly set up.
So, my next step was to try and reflash the phone to the stock Bell ROM and then just buy an Unlock code. I downloaded the stock ROM (2 different ones actually) and used Odin 3.07 to reload the ROM. I've tried it several times now, with both Bell ROMs and each time it says it's been successful, but the phone remains in the same, partially unlocked state.
It seems as though by using the PERSHO_256 method I have permanently, PARTIALLY unlocked the phone. I can't seem to re-lock it by installing the stock Bell ROM, and since it's unlocked, I can't get the foreign SIM error to come up to enable me to put in my purchased unlock code.
If anyone has any insights, it would be GREATLY appreciated. Thanks!
-Luke
You should ask questions about a specific device in its own Q&A. (unless it doesn't have one). Cuz people there have the same phone and will know exactly what to do.
LIFE! IT'S WHAT YOU MAKE OUT OF IT!
Will do, thanks for the tip!

[Q] Unlocked phone connects to phone network under stock ROM but not custom ROMs

I had my S2 unlocked via software while I was abroad to use the local SIM card - the person who did it couldn't unlock it, first blaming the phone as rooted and then hardware as damaged. Instead they made it worse, the phone doesn't connect to any network, whatever SIM card I use. At the time I was using a rooted custom ROM (Rootbox) v4.2.
I found if I use a stock ROM, even if rooted, it connects to phone networks and is unlocked to any SIM card. As you may know, the S2 can only upgrade to v4.1.2 if stock.
I have been going around in circles trying different kernels and ROMs. I would rather use v4.2 than stick with v4.1.2... Rootbox v4.2 used to work fine before trying to unlock the phone.
I have used the 'GalaxSim Unlock' app, in case the unlock process was only partial. I also tried to find if I could relock the phone back to the original network, by removing the EFS folder.
Does anyone know why this is happening? Thank you in advance.
Phone was originally SIM locked to T-Mobile.
Does anyone have an idea why this is happening?
Or has had it happen to them in the past?
The IMEI number is still intact.

[Q] Unlocking an s3 on UK orange

Hi there, this is my first post on this forum so I apologize if this is in the wrong place. I have recently purchased an s3 (GT-I9300) used, on orange network. When the phone boots, the orange network logo is displayed. I rooted the phone using CF-Auto-Root-m0-m0xx-gti9300 using odin , and i have checked, and it is succesfully rooted. This was my first root on a phone, and seemed to go well. I have not installed anything else using odin. Then I went about to unlock the phone, getting numerous unlocking apps (ariza patch, galaxsim unlock, galaxy S unlock, voodoo s3 unlock) but they all do nothing, saying they have unlocked it but my talkmobile micro sim (which runs off vodaphones network) will not work in the phone, it just asks me for a network key, then says emrgency calls only, and if i try to dial anything, says 'not registered on network'. I have not tried another sim in it yet as that was the only microsim I had.
My question is, can I unlock this phone in any other way, like would taking it to a market stall unlocker, or buying a code from the internet do the trick? and also, will I be able to install custom roms on this phone safely? Im not sure if the orange bootloader affects this in any way. Thankyou for reading, any help would be greatly appreciated
ckush said:
Hi there, this is my first post on this forum so I apologize if this is in the wrong place. I have recently purchased an s3 (GT-I9300) used, on orange network. When the phone boots, the orange network logo is displayed. I rooted the phone using CF-Auto-Root-m0-m0xx-gti9300 using odin , and i have checked, and it is succesfully rooted. This was my first root on a phone, and seemed to go well. I have not installed anything else using odin. Then I went about to unlock the phone, getting numerous unlocking apps (ariza patch, galaxsim unlock, galaxy S unlock, voodoo s3 unlock) but they all do nothing, saying they have unlocked it but my talkmobile micro sim (which runs off vodaphones network) will not work in the phone, it just asks me for a network key, then says emrgency calls only, and if i try to dial anything, says 'not registered on network'. I have not tried another sim in it yet as that was the only microsim I had.
My question is, can I unlock this phone in any other way, like would taking it to a market stall unlocker, or buying a code from the internet do the trick? and also, will I be able to install custom roms on this phone safely? Im not sure if the orange bootloader affects this in any way. Thankyou for reading, any help would be greatly appreciated
Click to expand...
Click to collapse
Read this thread all the way through same problem as you >> http://forum.xda-developers.com/galaxy-s3/help/i9300-network-unlock-firmware-version-4-t2612736n << ( it will explain things more clearly ) and look at the last two comments it as a link to a paid solution

SIM card problem

So I have my i9300 for a couple of years now and everything worked fine until I moved to Germany a couple of weeks ago (I come from Bosnia and Herzegowina). The phone was bought in Bosnia and I have a SIM card from the bosnian telecom (BH-Telecom) which worked fine. Then I bought a SIM card here (congstar) and my phone couldn't use it because of the network SIM prompt. I realised that that feature was kind of "blocked" (sorry but it's the first time I'm doing this) so I had to unlock it. I tried installing various versions of stock ROMs (including all German) via Odin on my phone, but everything stayed the same. I found this app:
play.google.com/store/apps/details?id=com.spocky.galaxsimunlock
But it said that I had to root the phone and after I did that also to change my IMEI which changed during the hole operation. Fortunately, I wrote it down before. But I can't change this "new" one to the old in order to get the "simunlock" app working. I used:
play.google.com/store/apps/details?id=com.vivek.imeichanger
and
play.google.com/store/apps/details?id=com.phoneinfo.changer
But after I write down my old IMEI and click Apply I reset the phone (as the popup says in both apps) and type *#06# the IMEI stays the same. Not only there, but in all other apps that I used. And well, my old SIM doesn't work either. My phone shows that "blocked SIM" icon for both SIMs.
Please, for the love of God someone help to at least make my old SIM working. Unlocking my phone completely would be amazing.
Help
Firstly, you cannot unlock it if it has ever been on 4.2 or higher. The old method was nvdata edit but it is obsolete on updated phones.
The quickest cheapest way is to take it to a phone shop and pay.
You need to be on the stock rom that came with the device from factory.
Sent from my HTC One M9 using Tapatalk
But I can get my old SIM working ?

Unlocked frp on s7 edge sm-g935a and flashed t mobile stock 7.0 rom. Sim unlock help

New to android rooting/developing. Ihave searched countless hours looking for help with the issue im having. Whicj brings me here to seek help.
I bought a s7 on AT&T network. It was google FRP locked. After a few hours of getting through it with help from online tutorial, I realised it was locked when I put my tmobile sim into it.
Since I wanted volte and mms to work,(as it does not on my current verizon unlocked s7e) I used odin to flash the latest t mobile version on 7.0 on the g935. All went well but there one issue.
After tmobile ota updates that ran after I put my t mobile sim in it still won't work. Guessing the sim is still locked. But I do not get the device unlock pop up like I did before the odin firmware flash. Tmobile device unlock is not working, some error server etc.
How do I unlock this phone so I can pop my tmobile sim in and get the phone I've been working for... Lol. Thanks in advance. You guys are so helpful with all this.
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