Installed wrong firmware, problems with unlocking, and *2767*3855# not working - Galaxy S6 Q&A, Help & Troubleshooting

I recently purchased a samsung galaxy s6, locked to Bell Mobility (my sim is rogers). I bought my unlock code through onemanwireless, but I made a very stupid mistake and followed the instructions for t-mobile phones and installed the factory firmware found here, http://onemanwireless.com/TMobile_Galaxy_S6_Edge_unlock.htm. After I realized my mistake I reinstalled the factory firmware for Bell, which I found on this, http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841.
However, the unlock code was still unsuccessful, so I followed the other three solutions found on onemanwireless, http://onemanwireless.com/instructions.php#samsung.
When I dialed *#197328640#, I was in the debugging screen, but I didn't have the eight option for phone control.
When I dialed *2767*3855# and *7465625*638*#, nothing happened.
I've checked the IMEI and it's the correct one for my s6. Also, I have installed root checker basic, and it tells me root access is not prorperly installed on the device. I've already gotten the network code incorrect eight times, so I want to know if I'm limited to a specific number of tries before my phone cannot be unlocked again?
Any help would be very much appreciated.

s6 edge 128gb ? Rogers to Virgin. Issues
hi,
i think i do have the similar situation but got unlocked and found your post on googling my phone solution.
i am having s6 edge 128gb initially from rogers two weeks ago from now. my network is Virgin and all initial attempts failed to unlock and now faces some problems ( hopefully can fix and can help each other)
please tell is your model 128gb?
My name is Samir and from Brampton.
May be you can contact me at [email protected] and we can discuss further as you like and can share more info.
Hope to hear back from you soon.

Get your unlock code from your network.

Mine is a Bell 32gb model and the #7465625*638*# code from dialer worked just fine I punched in my unlock code and I unlocked successfully

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First of all I hope this has not been covered, I searched but found nothing.
I recently bought an unlocked Captivate from the US, I am in Australia. I put my sim in and all was good. Used it for about 4 weeks and then one day turned it on and said on the screen 'you have entered an incorrect unlock code, please contact service provider.'
Now I never entered a code or even had a chance to enter a code. Now it will not let me use any sim at all or even give me a chance to enter and unlock code, which I have obtained using the one click unlock found in this forum.
The phone is rooted but was working fine when rooted originally.
Can someone help? I can still use phone with wifi just not sim. I have tried a hard reset and that still has the same problem. I have tried flashing it back to an older rom, same deal.
What can I do? I can't even enter an unlock code to get it unlocked.
All sim based devices have a PUK code...contact your provider, ask for it and then try to unlock your phone till it ask for it...then you can reset it...that'd what I would do.
Sent from my SAMSUNG-SGH-I897 using XDA App

[Q] Question about unlocking and nv_data.bin

Hello, I have a question about SIM Unlock and nv_data.bin.
First, sorry for my English
I have a Samsung Galaxy 3 I buyed to Vodafone Spain. The phone came locked by the carrier, and with Android 2.1. When the 2.2 roms began to be available to other carriers I flashed them with ODIN, so now, I have the latest version from Spain FOP (not Vodafone). I have never rooted the phone, or unlocked bootloader or anything else. Then only I have done is flashing the phone by ODIN and wipe it to factory reset.
The problem I have now is that I want to sim unlock it to use in other carrier. So I buyed a code (with the phone IMEI and the model(i5800)) to a code seller. I have buyed codes in this web for other phones (Nokia, Huawei and Sony Ericsson) and always the code have worked perfect on the phone, unlocking it perfectly. So I purchased the code for my i5800, but the problem is that the code they gave to me (8 numbers), doesn´t work, it says code invalid.
I have contacted with the seller but at the moment, they have no replied me. So, I found a tutorial in internet that says that if I extract nvdata.bin from the phone, I could get the code with a Windows app called Samsung Galaxy S Code Extractor(or something like that), so I decided to get the code by this method, since this method doesn´t require to alter system o root or anything, only extract a file by ADB
The problem is this method didn´t give me any code, is like nv_data.bin have losed the code in my phone.
So, my question is, if my nv_data.bin have losed the code, can it be the reason the code I buyed doesn´t work? I means, when I introduce the code in my phone, does it compare the code with the code inside nv_data.bin?? or have nothing to do?
Thanks in advance
i apologize for the long post

[Completed] Unlock T-Mobile Galaxy Avant

I've been searching for a number of hours now, and I haven't found the answer I need. I have a rooted Galaxy Avant from T-Mobile with TWRP installed, everything is backed up and ready for any customer firmware to be installed. I need to get this phone unlocked. T-Mobile says they won't unlock it because I haven't had an account with them for over a year, but it was a prepaid service plan and I bought the phone outright. They just refuse to provide me a code. I understand that even if I HAD a code I would have to flash the MetroPCS ROM and use IT to input the unlock, but what I'm hoping for is a way to unlock with a customer ROM or something like that so I can use it with Cricket. Everywhere I've looked has either lead me in the exact wrong direction and tried to get me to purchase an unlock code, or it has only told me how to input an unlock code I already have. I'm fairly knowledgeable about all of this, but I'm stumped. Anyone who can give me a hand with this would be greatly appreciated. Thanks!
Hi !
I haven`t found any thread for sim unlocking for this device but you can post or search in here https://forum.xda-developers.com/general/help/discussion-galaxy-avant-t2845229
Good luck !

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I have a Japanese S8+ (SC03J) that was sim-unlocked a bit more than a year ago. I used it on stock firmware, then rooted it, and kept using it.
I was going to update it to 8.0 through this custom firmware :
https://forum.xda-developers.com/ga...g9550-g9500-phoenixo9-crf2-everytime-t3819774
After successfuly flashing it, when I put my sim card back, he automatically asks me for a network unlock code, thing I never been asked before.
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Alright guys. Have not been on in years. Couldn't pass up an opportunity. $40 U11 in near mint physical condition. Now on to the fun part.
HTC U11
2PZC300 U-3U
Attaching photos of build info
The phone runs off WiFi perfectly. However it will not connect to mobile service (US ATT)
It registered my cell phone number so it is reading the card.
The seller says it was a Sprint phone but everything I can find says that Sprint builds are based on 2PZC5.
I want to just take it back to factory stock and then go back in and add twrp etc. I just don't know where to begin. Anyone have any ideas
Added photos
Well just got curious and did an IMEI check with T-Mobile. They list the IMEI number as a 2PZC5 model but the back of the phone says 2PZC300.
Really hope someone has some ideas. Because at this point I am leaning towards someone changed the imei number or something.
Also when I insert my sim into the phone it pops up asking what carrier I am using. After that the att apn settings are applied buts that's it. So I don't think it is carrier locked.
Alright so I can't get s-off to take again but I have figured out the firmware I can flash is for the unlocked us version but even flashing the latest firmware and installing omj badboy us unlocked I still don't have cell service. It ask me which carrier I am using with the sim card insert. It has yet to ask for an unlock code. I cannot use any dialer codes to check serial etc.
The only rom that let me use dialer codes was the Sprint based rom by omj but I can't flash firmware for it. I don't think this phone is done. Hoping someone reads this and responds with an idea
Well another update. Emailed HTC with all the info I had. They confirmed that the phone was originally a Sprint based phone. Now I need to figure out how to s-off so I change ruu back to Sprint. Sunshine won't pass test and s-off had just came out when I got out of rooting.
This thread will help
https://forum.xda-developers.com/u11/help/htc-u11-downgrade-pie-to-oreo-t3962791
Well I have reached the end of my rope. Finally figured out which base it was based on HTC helping me lol. Flashed the correct firmware with no issues. Flashed the correct ruu using sd card method and failed on systemimg_23. Now can't access fastboot via pc in anything but bootloader. Download mode and ruu mode don't recognize on my PC. Have uninstalled all drivers and reinstalled fresh drivers with no luck. Thought I was on the right path but unfortunately not.

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