I'm trying to unlock my dad's SGH-i747m with a code from cellunlocker.net, but I keep getting the error "Connection problem or invalid MMI code." I don't have another SIM to unlock, does anyone know of any other way to unlock the phone?
Jids said:
I'm trying to unlock my dad's SGH-i747m with a code from cellunlocker.net, but I keep getting the error "Connection problem or invalid MMI code." I don't have another SIM to unlock, does anyone know of any other way to unlock the phone?
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You need another carrier's sim, and when you restart your phone it will prompt you. This is the only way for the NA SGS3 models.
Related
I have an HTC S621 and have obtained the SIM Unlock code. The only problem is that I can't get my hands on a different carrier's SIM to get a chance to enter the code.
Is there any other way to enter the unlock code?
The phone is also app locked, but I can't get the 'SDA_ApplicationUnlock' to work. I keep getting a message saying 'Phone is not unlockable'. I read somewhere else that I will have to do a SIM unlock before I can get the CID unlock to work.
So, any help entering that code without a different SIM would be greatly appreciated.
Thanks!
I just repaired the screen on this Galaxy that was giving to me, its a i747 ATnT S3. I want to unlock it so I can use it on TMobil
So I went on ebay and I ordered an unlock code, 5 bucks is no big deal, does not work. Instructions says
Method one
1. Insert Unauthorized Sim Card into device
2. Power on the device
3. Enter Unlock Code when prompted
4. Device should be unlock if "Code Accepted"
Error I get is that the code is wrong. I tripled checked it, it is correct.
Method 2
1. Turn ON your phone Authorized Sim Card
2. Type #7465625*638*CODE# (CODE is the Unlock Code I sent you)
3. Device should say "Network Lock Deactivated"
4. The phone may reboot and the unlock is completed
I get an error "connection problem or imvalid MMI code"
There is more here http://ebay.unlockfusion.net/#help
I tried with and without a sim card and it does not work. The sim card I used from ATnT does not have DATA but I can make calls. I also tried using my TMobil. Nothing works. Can anyone help me?
I called him ATnT, I asked for an unlock code, they gave one to me, BUT, the one they gave me is the same one I got from Ebay, and they said to insert a none atnt sim card, when it asks you for unlock code, you enter it, and thats it. But I get an error
"Network unlock request unsuccessful"
Why am I getting this error code?
Are you on a custom ROM? If so, you may wanna jump back over to TouchWiz for the unlock...
This is so frustrating I paid 220 to get this repaired and I can't even use it.
Before I was on stock, now I am using touchwiz, which I got from this Dev Thread, http://forum.xda-developers.com/showthread.php?t=2033132
I inserted a valid ATnT sim card courtesy of my mother. I Can make calls, use the web, and so on. So I should be able to unlock it using this method
1. Turn ON your phone Authorized Sim Card
2. Type #7465625*638*CODE# (CODE is the Unlock Code I sent you)
3. Device should say "Network Lock Deactivated"
4. The phone may reboot and the unlock is completed
The error I get, "Connection problem or invalid MMI code"
Why am I getting this error?
I also tried inserting an unauthorized sim card, my tmobil sim card, when it ask me for an unlock code, when I enter the unlock code, I get this error
"Network unlock request unsuccessful"
Do I have a phone that is just not unlockable? This is very frustrating... Any help would greatly be apprecaited
Going to have to sell my phone ;/ I really liked the blue pebble frame and the white button.
F9zSlavik said:
Going to have to sell my phone ;/ I really liked the blue pebble frame and the white button.
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Why are you gonna sell it? That seems like a huge waste. Try this method
http://forum.xda-developers.com/showthread.php?t=2024361
Make sure your on stock tw 4.1.1 and you'll be able to unlock it for free! Don't sell the thing
sent from the dark side of the universe....
OMG IT WORKED!!!!
NO ONE SAID IT WAS SUPPOSE TO BE STOCK 4.1.1! It was recommended I should be on touchwiz. YOU MY FRIEND, ARE AWESOME
Because of the recent news of making it illegal to unlock phones I tried to use the *#simlock# code to check to see if my phone (T999) was unlocked. I keep getting the "Connection problem or invalid MMI code" so I tried a bunch of other codes which also didn't work. Is this because I'm running 4.2.1 (AOSP)? I remember when I had 4.0.4 USSD codes worked normally.
o193746285 said:
Because of the recent news of making it illegal to unlock phones I tried to use the *#simlock# code to check to see if my phone (T999) was unlocked. I keep getting the "Connection problem or invalid MMI code" so I tried a bunch of other codes which also didn't work. Is this because I'm running 4.2.1 (AOSP)? I remember when I had 4.0.4 USSD codes worked normally.
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you need to be stock to unlock your phone, the codes dont work on aosp.
I did the sim unlock on my phone a few months ago when it was just stock rooted, I'm not entirely sure if it worked then. Would that still apply now and is the only way to check is with a different carrier's sim?
o193746285 said:
I did the sim unlock on my phone a few months ago when it was just stock rooted, I'm not entirely sure if it worked then. Would that still apply now and is the only way to check is with a different carrier's sim?
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from what i understand, yes. when you unlock the sim there is nothing that says "it's unlocked!" so yeah you have to use an AT&T sim and see if you can make a call
and it sticks after a flash, it's not rom dependent, you just have to be stock to unlock it, then you can flash whatever you want
Hi, i'm noob and this is my first post. I got the Unlock code from ATT and tried it with my new sim. I was told by ATT that all I needed to to was insert new sim, power on, and the phone would ask for the unlock code. When I did it, it was asking for a PIN#. I entered the unlock code but it kept saying invalid. I got down to "4 attempts left" and gave it to someone at the local carrier. They gave it back to me unworking and now it says "sim error - sim not installed or is invaid. Emergency calls only. The sim is good and I have verified the correct unlock code with ATT.
Anyone know what to do? Is is a brick now or can it be fixed? Thanks in advance
I think you should use Nokia Software Updater for Retail to flash new Firmware to your phone
(Note: losing all data )
Hi I am trying to unlock samsung s3 for friend, it has this cyanogenmod on the phone. I have ordered all level codes for it network, defreeze, provider, subprovider. I tried both the defreeze code and network code. they are not working and everytime I am getting unsuccessful unlock message. Anybody know how to unlock it. thanks
ak.89 said:
Hi I am trying to unlock samsung s3 for friend, it has this cyanogenmod on the phone. I have ordered all level codes for it network, defreeze, provider, subprovider. I tried both the defreeze code and network code. they are not working and everytime I am getting unsuccessful unlock message. Anybody know how to unlock it. thanks
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Do a factory reset insert the unfreeze code,will say unsuccessful but is ok,then insert the unlock and should accept it.If still not working do a backup of your current rom and flash the stock firmware and try the codes again