Hello,
I have a UK version of the S3 (i think its the I9300) About a month ago I had it unlocked from the 3 network (UK) by one of the hundreds of shops that offer unlocking services.
When the phone was unlocked I could enter *#7465625# and it would say that the phone was unlocked to all networks ( I don't remember the exact words) Anyway all was good until last night when my phone upgraded something (I got a reminder in the notification bar that there was an upgrade available) - I've done this before. Now it is saying that the phone is SIM network locked again. And I am unable to enter the code to see whats up.
When I got it unlocked, I was told (obviously incorrectly) that once the code has been entered the phone can never lock itself to a network.
It seems to me, that somewhere in the upgrade 'Three' (who the phone was locked too) has made the phone relock itself.... Has anyone else had this problem, or can point me to the right forum. FYI I am on the O2 network.
Thanks in advance.
Seems like a bit of a nuisance, if every time the phone upgrades it relocks... Perhaps I need to Root the phone..
Known issue on some phone with the latest ICS updates from samsung
Use GalaxSim Unlock to re-unlock your phone
(needs to be rooted)
Update make your phone lock it self common thing.Mate this shops ripe u off. Just root your phone and take simlock using one of the apps from market or voodoo unlock. There is pleanty tutorials how to do it on xda. Its not really complicated o and u can try galaxy S 3 toolkit I think u can take simlock as well using that program hope t helped
Sent from my GT-I9300 using xda app-developers app
Related
Sorry for this funny question but from what I think unlocked phone can not be locked again (not iphone). One of my friend keep saying he got locked after couples day using unlocked phone. Could be?
Thank you.
ihowil said:
Sorry for this funny question but from what I think unlocked phone can not be locked again (not iphone). One of my friend keep saying he got locked after couples day using unlocked phone. Could be?
Thank you.
Click to expand...
Click to collapse
Hm, you might be onto something.
I had unlocked my Vibrant using an AT&T SIM a few weeks ago (code provided by T-Mobile), but when I was on vacation in Central America last week, I tried a local SIM and it asked me for an unlock code again.
I never did bother trying to unlock it again, but it was kind of weird. Will test it again with AT&T when I get a chance.
I travel to canada once a week and switch my Tmobile sim to a rogers sim. Has been working for almost 2 months now. Tmobile provided code.
Just re-enter your orig unlock code again
I had similar issues some time ago and posted a question about it but no one responded. I have sinced re-flashed the stock rom again (2nd time) and I have not seen the issue again. It would usually pop up after having to force reboot the phone or do a battery pull after an app hung. I was beginning to think it was related to being rooted and an issue with the mount rw-read only. The first thing I did after the re-flash was to unlock, then did the root etc. It has not come back. One possibly related thing is that sometimes when I have to reboot, it shows missed called after it boots. These are calls that were from a day or 2 before. Its almost like some info isn't being "committed" when a force reboot is done.
Fortunatly it seems that it is just a matter of entering teh unlock code again. Just really strange though...I have always been told that once it is unlocked, it is always unlocked.
Well, it happened again yesterday. Phone was acting wierd, lagging, apps hanging, so I rebooted and got the sim unlock screen again. Entered the code and it unlocked ok.
Very annoying....
My previous Vibrant that I had unlocked re-locked itself somehow as well. I noticed this after I had re-flashed the JFD firmware with ODIN. I popped my AT&T sim and was prompted for the unlock code (again). Which I then entered but unfortunately it didn't take. What's up with that?
I checked my nv_data.bin once again and the code was still the same. I could never get the thing to unlock again though either with the unlock or unfreeze code. It didn't appear to be frozen either; if it was it didn't indicate that.
While flashing via ODIN I never even checked the box related to "efs". I just reloaded the JFD/stock firmware which worked fine. I can't explain it. All I know is I haven't unlocked this new phone yet. I have the code but I will worry about it when the time is come that I need another network to use.
I did notice on the samfirmware.com site they mention to "check your simlock" before flashing a new firmware. Anyone know what that means other than something obvious?
This just happened for the second time to me on two different vibrants from TMO. Is the consensus that the phone needs to be reflashed?
FYI, I have flashed mine twice back to the stock rom and it continues to happen. Also, I opened a ticket with Samsung and even got an RMA to send it in so they could "reflash it". I never sent it in because I knew that would not fix it.
Again, this seems to happen when the phone starts to lag or apps start to hang and I reboot. This has got to be related. I wonder if anyone has had it re-lock while running a lag fix? FYI, Mine is the stock rom rooted and thats it. I wonder if this is only happening on rooted phones?
It really scares me that there is at least one account of it not unlocking with the correct code after it re-locks.
Really would like to find out a solution for this.
I've read that this happens with a lot of Samsung phones, they'll just randomly lock.
Sometimes it appears to make sense (after a ROM flash .... even an official one), sometimes it doesn't. Sometimes it'll only unlock for the SIM you put in, but when you put another in, it'll lock again.
Just make sure you keep your code & have it ready to enter at any given time. Seems to be a Samsung glitch (like the many others we have to deal with).
Yeah same here. When my old vibrant relocked i could never get it unlocked again with the same code. I also highly recommend if your phone is rooted to make a backup copy of /efs which is where that nvram data is stored.
Surprised Here Too!
I went out of my way to go to an AT&T store. Then I read a thread here about proving Vibrants are unlocked. Pissed! Now you're telling me that it may never un-lock again?
"Open the dialer and key in *#7465625#. For an UNLOCKED Vibrant you should get the following result: Network Lock [OFF], Network Subset Lock [OFF], SP Lock [OFF] CP Lock [OFF], press OK to exit that menu"
IrieBro said:
I went out of my way to go to an AT&T store. Then I read a thread here about proving Vibrants are unlocked. Pissed! Now you're telling me that it may never un-lock again?
"Open the dialer and key in *#7465625#. For an UNLOCKED Vibrant you should get the following result: Network Lock [OFF], Network Subset Lock [OFF], SP Lock [OFF] CP Lock [OFF], press OK to exit that menu"
Click to expand...
Click to collapse
They don't come unlocked, you have to unlock them.
I unlocked my vibrant & what you wrote above is what I see.
Hello! First time poster here. I'll start with a quick overview:
My mum had a galaxy s2 on an orange contract. She's decided to give it to me. However, when I put my tesco mobile SIM in the phone and try to call it says 'Mobile network not available'. I tried to see if it needs unlocking by dialling #SIMLOCK# but I got the same message.
How do I fix this problem? Is this a case of me needing to unlock the phone? My mum has never gone on the internet with the phone and so won't have installed any new firmware etc.
Sorry if this comes across as a simple question. Any help appreciated!
Yeah it is simple.
Root phone,backup efs then use helroz unlock tool.
Hi, I am looking for some help/advice about a Samsung Galaxy s2 (GT-i9100).
I purchased this phone new and unlocked in the UK back in October 2011 and have been using it fine over the last few months. Recently I gave this phone to a friend who was going traveling in India.
She bought an AirTel sim and used it in the phone for the past several weeks, however, last week she woke up and the phone was asking her to enter a “Network Access Lock Control Key”, and she can no longer use the phone or data (wifi still works).
I’ve done some research and it appears that the phone has somehow locked itself to a network. So I am now trying to figure out how to help her restore connectivity.
I know you can buy unlock codes online, however, we don’t know what provider the phone has locked itself to and all the unlock websites I’ve been on need you to specify the network provider. Is there any way of finding this out?
I also know you can get apps from the app store to unlock, however, you need to be rooted to do this, and this isn’t an option due to where she is at the moment.
So, does anyone have any advice or suggestions?
She has been to AirTel and they don’t know what is going on, she also took it to an official Samsung store who did a full firmware re-install but the phone still appears to be locked. Would this code be available from Samsung?
Any advice or suggestions is appreciated.
Thanks.
engdmorr said:
Hi, I am looking for some help/advice about a Samsung Galaxy s2 (GT-i9100).
I purchased this phone new and unlocked in the UK back in October 2011 and have been using it fine over the last few months. Recently I gave this phone to a friend who was going traveling in India.
She bought an AirTel sim and used it in the phone for the past several weeks, however, last week she woke up and the phone was asking her to enter a “Network Access Lock Control Key”, and she can no longer use the phone or data (wifi still works).
I’ve done some research and it appears that the phone has somehow locked itself to a network. So I am now trying to figure out how to help her restore connectivity.
I know you can buy unlock codes online, however, we don’t know what provider the phone has locked itself to and all the unlock websites I’ve been on need you to specify the network provider. Is there any way of finding this out?
I also know you can get apps from the app store to unlock, however, you need to be rooted to do this, and this isn’t an option due to where she is at the moment.
So, does anyone have any advice or suggestions?
She has been to AirTel and they don’t know what is going on, she also took it to an official Samsung store who did a full firmware re-install but the phone still appears to be locked. Would this code be available from Samsung?
Any advice or suggestions is appreciated.
Thanks.
Click to expand...
Click to collapse
Tell ur friend to do the below and see if it resolves the issue
1)Turn off the phone and then remove 'Simcard'
2)Turn ON the phone without 'Simcard' and let it boot completely.
3)Turn Off the phone again and this time put the 'simcard' back.
4)Turn ON the phone with 'Simcard' and let her have 'Finger's Crossed' and pray god not to give the same issue until she leaves INDIA
GalaxSim unlock from market
Sent from my GT-I9100 using xda premium
vanisleryan said:
GalaxSim unlock from market
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I think you need to be rooted: he says thats not an option.
Sorted out now
Thanks for the suggestions but we managed to sort it out now.
After much research we rooted the phone using cwm-touch (ver 6.0.1.2-i9100) and the SU-Busybox installer zip.
We then used the GalaxySim unlock app from the app store to unlock the phone, all seems to be working now!
Hi all,
I'll explain my situation. I had a work supplied HTC Sensation. The most god-awful handset known to mankind... except the iPhone. I digress. We are on Vodafone UK. When it came to renewing the work phones I was given an "upgrade" iPhone 5s. Long story short, I'm not using it. I have a Samsung Galaxy S2 which was on T-Mobile. I was given it and I thought I'd give it a go as it has to be better than the HTC Sensation.
Firstly I put in my Vodafone SIM. As I expected it didn't work. I have checked the IMEI number and it hasn't been blacklisted. So I thought I'd unlock the phone and root it. I followed the advice in this thread:
http://forum.xda-developers.com/showthread.php?t=2365701
After the first go of installing Jellybean which is what was on there initially I got to the end, rooted it and it wouldn't unlock using the method given. The method goes on to say that it works with ICS. So, I went through it again and installed ICS. Rooted it. Ran the unlock. Still locked.
Question 1: Is SIM lock the same thing as Network Lock?
At the moment, I have the stock ROM from the above thread for ICS installed. 4.0.3 I think it is. If I put my Vodafone UK SIM in this phone, when I try to make a call it says "Not registered on network". Tried following lots of advice in different threads. None worked. I thought, maybe that it can't register on the network as I am boosting my signal through a Sure Signal. I tried going to a place where I know I would normally get signal and tried doing it there. Still no luck. I keep digging and I come across the DEBUG MENU on the device:
http://forum.xda-developers.com/showthread.php?t=1882796&page=4
It suggests this:
dial "*#197328640#" to enter debug menu
click "6 [common]"
click "6 [nv rebuild]"
click "2 [erases three partition!]"
Except in the 3rd option there is no menu option 2. I have kept digging and then came across the "Personalizatiob Status" (http://forum.xda-developers.com/showthread.php?t=740167) and it shows this:
Network Lock
[OFF]
Network Subnet Lock
[OFF]
SP Lock
[OFF]
CP Lock
[OFF]
Please note that during all this my Vodafone SIM is NOT in this phone. It is in the HTC Sensation and is working just fine.
Question 2: Do I have to have my SIM in the phone when I do all this?
Question 3: How can I get this phone to register on the network with my existing Vodafone UK SIM that is working just fine?
I've tried the Galaxy S2 Unlock apps on the market store. The unlock code and unfreeze code show gibberish.
What am I missing? I don't actually care for using the stock Samsung ROMs because the phone is way out of warranty anyway. I just want to avoid having to use the iPhone I've been given.
Any advice welcome.
Any advice from anyone?
Cheers.
Did you try spockys app
theunderling said:
Did you try spockys app
Click to expand...
Click to collapse
What is Spocky's app? Everything I've done is in the post.
snert said:
Everything I've done is in the post.
Click to expand...
Click to collapse
If you dont know what it is; then one would presume you havent tried it.
You can do a google or xda search, or charge up the iphone.........
theunderling said:
If you dont know what it is; then one would presume you havent tried it.
You can do a google or xda search, or charge up the iphone.........
Click to expand...
Click to collapse
Nope, haven't tried that one. I will give it a go later on this evening. I've tried a couple of unlockers that have been recommended in other threads and neither have worked. I'll keep you posted.
Any thoughts on the other questions I had on the original post?
With regards to the iPhone, I think I'd rather stick with the HTC Sensation despite its multiple daily crashes/restarts and almost constant need for recharging.
I tried the app and it said everything was unlocked except for CSC Lock. Now, I did some reading on that lock and that seems to be a geographic lock applied by Samsung. As this phone was bought in the UK and I'm putting a UK sim in it, then this won't affect me because both the original TMobile SIM and my Vodafone SIM are UK.
It said my unlock code was 00000000. I doubt it is that, but on the slim chance it is, where do I even put the unlock code in?
Attached is a screenshot of the lock status from GalaxSim by Spocky.
It now shows everything is unlocked. Any ideas?
I can see the sim operator is listed as Vodafone and the registered operator is O2 according to that. Weird as it had a working T-Mobile sim in it prior to my getting it.
Thanks.
Any further ideas? There has to be something I've missed.
Well, I have still not managed to find out why this phone won't connect to the network. Sadly my old HTC Sensation has pretty much now become unusable and I've had no choice but to start using the iPhone provided by my work as I've not been successful in getting the S2 up and running.
I cannot believe just how bad the iPhone is. I've always said they were rubbish from day one despite having never owned one. Now I have one, I can justifiably say that I was correct in that they are dreadful things, however, I didn't quite realise just how rubbish they really are. Now I know.
Dear all,
Is there a real service that unlocks these?
Heard these devices are not unlockable. Is that true? (Two encryption locks, UICC lock, or something)
Thanks for all help!
Nothing till now can unlock S9 sprint carrier They used to change imei and this solution will make phone not able to use it with any CDMA just only GSM
WaseemAlkurdi said:
Dear all,
Is there a real service that unlocks these?
Heard these devices are not unlockable. Is thdat true? (Two encryption locks, UICC lock, or something)
Thanks for all help!
Click to expand...
Click to collapse
I used unlockpolice.com to unlock my phone. It cost me $180.00 and they had to connect to the phone with a USB redirector app. First time they read some information from it, second time was to unlock it. They did not change the IMEI number, and it is sim unlocked. Am using it with AT&T after flashing the U1 firmware (removed sprint bloat)
I did not try to use the phone back on Sprint, honestly no reason too for me.