[Q] Will I lose unlock if I install a new ROM? - General Questions and Answers

Hello, my name is Armando. This is my first post here, and I only have one question. First of all I want to say thanks to all you guys, I've found a lot of useful stuff here for my phone Ok, let's go for it:
I recently unlocked my Huawei Y511 to use it on any carrier, and it was succesful (I didn't unlock it by myself, a repairman did it). The problem is... my phone still got all the original carrier stuff (boot animation, some crappy apps and sounds) and I want to delete all of them. I rooted my phone before the unlock (temporary root which I found in this same forum: http://forum.xda-developers.com/showthread.php?t=2130276) and I leave all the stock ROM untouched before the unlock. I noticed that the guy who unlocked it used a "unlock box" named "SigmaBox" and he told me that my phone was able to be unlocked directly, without needing to wipe and reinstall all the software (I give him the phone, then one hour later I have my phone all unlocked, and it was the same way it was before it).
Now my question is... if I install a new ROM or whatever... will I lose my sim unlock?
I don't understand how he unlocked the phone, all I know is that he did a "direct unlock" but I don't know if he used unlocking codes. All I know is that he used some kind of USB box connected from my phone to a computer, and did his magic and surprise, phone unlocked.
Do you know what kind of unlock is this? And how does it work?
PD: Sorry for my bad english, my native language is spanish but I'm trying to improve my english skills (so I didn't use a translator).

I don't know much about unlocking. But I'm pretty sure that you won't loose the unlock status if you flash custom rom
Sent from my LG-E610 using xda app-developers app

atulkris said:
I don't know much about unlocking. But I'm pretty sure that you won't loose the unlock status if you flash custom rom
Sent from my LG-E610 using xda app-developers app
Click to expand...
Click to collapse
Thanks for your reply, and yeah, I think you are right.
After doing a little research, I found that a "direct unlock" is basically the generation and input of unlocking codes generated by both IMEI and carrier code, and the unlock box generated three codes which only one of them worked and the phone gets unlocked. So, my phone is
unlocked for ever and I won't lose my unlock status even if I install/update/reinstall the ROM.
If any of you guys know something else about this unlock procedure, please let us know!

Related

buying verizon gs3 this weekend question about unlocking bootloader

Hey all. My early upgrade is this weekend so I'm going to but a gs3 but I must be able to root and unlock boot loader.
Was looking at the unlock app
https://play.google.com/store/apps/details?id=com.mmmeff.ez.unlock
And see that the recent reviews saying they are having issues unlocking boot loader since update from Verizon.
Is the app broken now And or did they patch the phone so u cant unlock the boot loader?
I don't amt to buy this phone then end up not being able to unlock the bootloader (I can't stand anything other than aosp)
Lmk. Also how would I go about unlocking the boot loader without using that app or is that the only way to do so?
This is posted all over this forum. However, all you need to do is search for version 1.2 and it will unlock the bootloader, after you root, of course.
Sent from my SCH-I535 using xda premium
the guide posted at the top of the dev forum should be your new best friend
HHF2 said:
This is posted all over this forum. However, all you need to do is search for version 1.2 and it will unlock the bootloader, after you root, of course.
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
Here is my copy http://db.tt/TtOVCI1W . Just make sure you root first .
Sent from my SCH-I535 using xda app-developers app
Valkyrie743 said:
Hey all. My early upgrade is this weekend so I'm going to but a gs3 but I must be able to root and unlock boot loader.
Was looking at the unlock app
https://play.google.com/store/apps/details?id=com.mmmeff.ez.unlock
And see that the recent reviews saying they are having issues unlocking boot loader since update from Verizon.
Is the app broken now And or did they patch the phone so u cant unlock the boot loader?
I don't amt to buy this phone then end up not being able to unlock the bootloader (I can't stand anything other than aosp)
Lmk. Also how would I go about unlocking the boot loader without using that app or is that the only way to do so?
Click to expand...
Click to collapse
The developer recommends version 1.2 and you can get that from here: http://rootzwiki.com/topic/32456-app-920-ez-unlock-14-easiest-way-to-unlock-your-bootloader/
There is a way to unlock the bootloader manually, but that takes a bit more effort and some terminal coding. I would definitely recommend just downloading EZ-Unlock v1.2 and using that. It's just a push of a button! That's what I did.
At the risk of being reprimanded.....
My phone is rooted and I have unlocked the boot-loader with One click "ez bootloader unlock." I have flashed numerous ROM's and continue to flash various ROM's... After flashing each new ROM and getting through the initial setup, I download ClockWorkMod from the play store, if not already part of the ROM, and then "One click ez bootloader unlock." I then run the "One click ez bootloader unlock" and then the ClockWorkMod for my model phone. I do this each time I flash a new ROM.
My question is whether this is unnecessary or not? I see that the later versions of "One click ez bootloader unlock" have a re-lock option, but I am unclear as whether or not it is unnecessary to unlock the boot-loader each and every time a person flashes a new ROM? Or under what circumstances would a person need to unlock their boot-loader after successfully unlocking it the first time?
It seems to me that once the boot-loader is successfully unlocked that a person would not have to unlock it again unless they ODIN back to Stock OEM, but I have not been able to google or search these forums successfully to find an answer, and for that I apologize, because I'm sure it's here somewhere, and some "Senior Member" will be quick to jump at the opportunity to point that out to me.... After a healthy dose of liquid courage, I am reluctantly asking the question here.... And if someone is so kinda as to answer my question, who knows, maybe it will help some other person who has the same question, but is afraid to ask, because of the harshness and lack of patience of some "Senior Members?"
A sincere thank you in advance to anyone who might answer my question. :fingers-crossed:
The only time you need to re-unlock the bootloader is if you Odin back to stock.
Sent from my SCH-I535 using Tapatalk 2

[Q] Questions about unlocking, rooting and modems.

I'm sorry if this questions have been asked before. I read through many pages on the Q&A section of this phone and didn't come with clear answers to my questions.
This is the first time I will attempt to unlock, root and flash a ROM on an Android phone.
First of all, I've read and I still don't know if I can flash a custom ROM, or one of those Brazil/Orange JB images available and be able to have the phone unlocked to use with different carriers. Jelly Bean hasn't been released to this phone here in Mexico yet.
1.- I don't mind unlocking the bootloader with Motorola solution. Is this the best way to unlock it?
2.- Flashing a custom ROM or a stock one makes the phone unlocked so I can use it with different carriers?. If the answer is yes, what ROM do you recommend. Are those Brazil/Orange images good for any user or its better to stick with third-party ROMs?
3.- If the answer to number 2 is NO, what should I do in order to unlock the phone? I need to be able to use in Mexico (the phone if from Telcel) and also use it on the United States (with AT&T). I've read about modem files that had to do with carriers but I'm not sure if I need special files to unlock this phone? If this is needed, where do I start or where do I find this files?
4.- If there is something else I need to know (and I didn't asked here) about unlocking the phone and flashing a stock or third-party ROM and have it unlocked to work with other carriers, please let me know by replying.
What are you guys using to backup the factory image? I haven't fiddled with Android for a while after flashing a Kindle Fire many times. I got a Nexus 7 and I haven't needed to root, unlock or try third party ROMs. The last time I used TWRP to backup the image of the Kindle Fire I think.
Thanks in advance
ajua said:
I'm sorry if this questions have been asked before. I read through many pages on the Q&A section of this phone and didn't come with clear answers to my questions.
This is the first time I will attempt to unlock, root and flash a ROM on an Android phone.
First of all, I've read and I still don't know if I can flash a custom ROM, or one of those Brazil/Orange JB images available and be able to have the phone unlocked to use with different carriers. Jelly Bean hasn't been released to this phone here in Mexico yet.
1.- I don't mind unlocking the bootloader with Motorola solution. Is this the best way to unlock it?
2.- Flashing a custom ROM or a stock one makes the phone unlocked so I can use it with different carriers?. If the answer is yes, what ROM do you recommend. Are those Brazil/Orange images good for any user or its better to stick with third-party ROMs?
3.- If the answer to number 2 is NO, what should I do in order to unlock the phone? I need to be able to use in Mexico (the phone if from Telcel) and also use it on the United States (with AT&T). I've read about modem files that had to do with carriers but I'm not sure if I need special files to unlock this phone? If this is needed, where do I start or where do I find this files?
4.- If there is something else I need to know (and I didn't asked here) about unlocking the phone and flashing a stock or third-party ROM and have it unlocked to work with other carriers, please let me know by replying.
What are you guys using to backup the factory image? I haven't fiddled with Android for a while after flashing a Kindle Fire many times. I got a Nexus 7 and I haven't needed to root, unlock or try third party ROMs. The last time I used TWRP to backup the image of the Kindle Fire I think.
Thanks in advance
Click to expand...
Click to collapse
Unlocking BL doesn't change the unlocked status of the phone for carriers. If you want to unlock it to use with different carriers you'll have to pay the unlock fee to whoever you choose to unlock with.
1. Answered above.
2. Custom ROMs or ROMs from different carriers won't unlock the carrier.
3. I believe there is some sort of file modification to have it unlocked. Not sure what you have to do but if I remember correctly its risky and affects IMEI.
Sent from my RAZR HD XT925
saloums7 said:
Unlocking BL doesn't change the unlocked status of the phone for carriers. If you want to unlock it to use with different carriers you'll have to pay the unlock fee to whoever you choose to unlock with.
1. Answered above.
2. Custom ROMs or ROMs from different carriers won't unlock the carrier.
3. I believe there is some sort of file modification to have it unlocked. Not sure what you have to do but if I remember correctly its risky and affects IMEI.
Sent from my RAZR HD XT925
Click to expand...
Click to collapse
I know the bootloader won't change the locked status. As this is the first time flashing a phone, not a tablet, I thought that using a custom ROM or one from different carrier would work for this.
I've tried other SIMs on the phone (it's my sister's, not mine) but the phone didn't asks for a code when a SIM from a different carrier is inserted. I haven't bought any code because of this.
Anyone has a suggestion on what to do to have the phone unlocked to use with different carriers?

[Q] Sony Xperia U network unlock

It's probably a n00b question so apologies in advance, but if I root / bootloader unlock and Cyanogenmod flash an Android phone that's locked to a certain network, will that network lock be removed along with the official default Android ROM? Or is the lock at something like a BIOS level (or whatever the smartphone equivalent of a BIOS is)?
I bought a pre-unlocked Xperia U about a year ago that I've been using on Vodafone and had to return it under warranty (got stuck in a boot loop despite the fact that it's totally unmodified, not even rooted, honest!) and the replacement they sent back is locked to Virgin Mobile. They're telling me that the phone I sent them was originally sold to Virgin in France and locked to Virgin before I bought it, and that they've therefore fulfilled their responsibility. So I'm just wondering now about unlocking, and I've always been curious anyway about how / if bootloader unlocking, custom ROMs etc are related to network unlocking.
Thanks in advance for any help you can provide with this!
Bump The First
splscs said:
It's probably a n00b question so apologies in advance, but if I root / bootloader unlock and Cyanogenmod flash an Android phone that's locked to a certain network, will that network lock be removed along with the official default Android ROM? Or is the lock at something like a BIOS level (or whatever the smartphone equivalent of a BIOS is)?
I bought a pre-unlocked Xperia U about a year ago that I've been using on Vodafone and had to return it under warranty (got stuck in a boot loop despite the fact that it's totally unmodified, not even rooted, honest!) and the replacement they sent back is locked to Virgin Mobile. They're telling me that the phone I sent them was originally sold to Virgin in France and locked to Virgin before I bought it, and that they've therefore fulfilled their responsibility. So I'm just wondering now about unlocking, and I've always been curious anyway about how / if bootloader unlocking, custom ROMs etc are related to network unlocking.
Thanks in advance for any help you can provide with this!
Click to expand...
Click to collapse
well u can unlock it.. by getting the code from sony..
It will also unlock the ph..'s Sim lock..
Or ask the sony officialy for this.. they'll provide u every info required.
But unlocking the bl will do the job for you to be sim free
But do double check this from google too.
Also before unlocking pls make a backup as it will wipe everything from the device.
Just unlock and don't flash any custom kernels.If you want to then do it carefully pls with a backup and a copy of flashable stock rom.
Flash custom roms based on stock kernels
Hope this will answer the query..
Thanks for your reply! I spoke to Sony and they just told me to contact the network (which have done and they're wanting to charge me a fee to provide the unlock code). So to clarify, if I root the phone and unlock the bootloader, the network SIM lock will also be removed?
splscs said:
Thanks for your reply! I spoke to Sony and they just told me to contact the network (which have done and they're wanting to charge me a fee to provide the unlock code). So to clarify, if I root the phone and unlock the bootloader, the network SIM lock will also be removed?
Click to expand...
Click to collapse
Not by rooting but also i guess not even by unlocking bl..
how much are they charging exactly..
i'll try to find the link for this
Also check this that how many times is the code applied for unlocking..it should not be 0
use this *#*#7378243#*#* in dialer
then service info sim lock
ADDICT.ANK said:
Not by rooting but also i guess not even by unlocking bl..
how much are they charging exactly..
i'll try to find the link for this
Also check this that how many times is the code applied for unlocking..it should not be 0
use this *#*#7378243#*#* in dialer
then service info sim lock
Click to expand...
Click to collapse
When I dial that number, the number just disappears. What is it for? They want £15.32 for the code. Should I just pay them and forget about trying to remove the lock?
splscs said:
When I dial that number, the number just disappears. What is it for? They want £15.32 for the code. Should I just pay them and forget about trying to remove the lock?
Click to expand...
Click to collapse
Sorry the code is this
*#*#7378423#*#*
check the sim lock counters should be zero in all..
if zero then once u can try googling the code for unlocking if they work then it's great.
if not then it would be better to pay them for this as its a bit risky..
and are u using virgin's network??
As it's cheaper what they areaskingfor i guess.
ADDICT.ANK said:
Sorry the code is this
*#*#7378423#*#*
check the sim lock counters should be zero in all..
if zero then once u can try googling the code for unlocking if they work then it's great.
if not then it would be better to pay them for this as its a bit risky..
and are u using virgin's network??
As it's cheaper what they areaskingfor i guess.
Click to expand...
Click to collapse
Thanks, I'll give it a try! And nah I use Vodafone. Virgin has no signal at all in my area.

[Q][solved] device not avaiable unlock bootloader

Hello, my moto g is a locked bootloader, if I change the rom it, I'll get it unlock?
You have to unlock the bootloader first from here if you have a Moto G https://motorola-global-portal.cust...e/bootloader/unlock-your-device-a/action/auth.
Yea in order to install a ROM you have unlock the bootloader, and no installing a custom ROM won't unlock it you have to use the site above to unlock it. If you have a phone locked to any tariff like T-Mobile you won't be able to unlock it even if you unlock the Sim due to the addictions in the software and you will get a message "device not available" or something like this. So you can use guides available on the internet to solve this.
?
Sent from my Nexus 7 using xda app-developers app
hello, i have a rom americamovil Brazil, and my intention was to try to put a retail rom through fastboot, it would be possible,? and I could unlock the bootloader so putting a rom? I've been on the motorola site and tried to unlock my and gave that was not possible.
lobotwister said:
hello, i have a rom americamovil Brazil, and my intention was to try to put a retail rom through fastboot, it would be possible,? and I could unlock the bootloader so putting a rom? I've been on the motorola site and tried to unlock my and gave that was not possible.
Click to expand...
Click to collapse
You can`t flash anything if you have a locked bootloader, not even a factory image and certainly not a custom rom. What is the problem on the Motorola site, could you post a screenshot when you try unlocking the bootloader via that site?
Uploaded with ImageShack.us
after I type the codes, since direct returns me this message.
lobotwister said:
Uploaded with ImageShack.us
after I type the codes, since direct returns me this message.
Click to expand...
Click to collapse
Well I haven`t unlocked my Moto (and probably won`t) but maybe you could try following this tutorial to the letter http://xperiahtcrootingrom.com/unlock-motorola-moto-g-bootloader/ or else Google around for users with your similar issue.
thanks for the support, I'll try this link.
wrap your head after a bit I decided to risk it all, I had a rom americamovil br ( claro Brazil ), this did not allow unlock the bootloader, so I installed the fastboot one retail rom Brazil, and yes I got this unlock the bootloader , noting that the risk of losing the IMEI is great, so think carefully before deciding to do the process.
retail location to download the rom:http://forum.xda-developers.com/showthread.php?t=2546251
installation guide via fastboot:http://forum.xda-developers.com/showthread.php?t=2542219
thanks to everyone who helped me and supported me, now I hope that my doubts much help here from the forum
Excuse my bad english
lobotwister said:
wrap your head after a bit I decided to risk it all, I had a rom americamovil br ( claro Brazil ), this did not allow unlock the bootloader, so I installed the fastboot one retail rom Brazil, and yes I got this unlock the bootloader , noting that the risk of losing the IMEI is great, so think carefully before deciding to do the process.
retail location to download the rom:http://forum.xda-developers.com/showthread.php?t=2546251
installation guide via fastboot:http://forum.xda-developers.com/showthread.php?t=2542219
thanks to everyone who helped me and supported me, now I hope that my doubts much help here from the forum
Excuse my bad english
Click to expand...
Click to collapse
Awesome. Glad it worked for you
really glad that worked, went for all or nothing, hope it works for most people who are not able to unlock the bootloader with the original rom device.

Sim unlock solution developmet for T-Mobile S7 G930T

Hello everyone
Here's my problem and my idea:
I bought T-Mobile Galaxy S7 on ebay about a week ago (Stock QC1 firmware) and now I'm in need of sim unlock, which I can't, my device's unlock fails every time through Device Unlock app
I've searched through the web past two days and found no solution whatsoever. Every service is down for now and I cannot find any ways to unlock my phone.
So, here's what I thought: Maybe here's someone who can actually develop or figure out a solution for this since many solutions are available for S6/S6e and many other t mobile phones, but not for S7.
I can be tester and provide any files/dumps if needed or anything you guys ask.
I believe I'm not the only one with this problem and if we try hard enough, we can do this. Many people can benefit from this also, so let's be useful.
To mods, if you believe this is a wrong place to post this thread, please move it where it belongs.
Thanks to you all.
So your idea is just to look at other device solutions? [emoji1]
Sent from my iPhone using Tapatalk
I guess that's the part of it
Cheers
We probably wont see a direct unlock solution on these T-Mobile/MetroPCS QUALCOMM based Galaxys for some time. The older models you mentioned are Exynos based CPUs, they are being unlocked all the time. Unlock app or trusted server for imei unlock is our only solutions for now.
Sent from my SM-N920P using Tapatalk
installerrev said:
Hello everyone
Here's my problem and my idea:
I bought T-Mobile Galaxy S7 on ebay about a week ago (Stock QC1 firmware) and now I'm in need of sim unlock, which I can't, my device's unlock fails every time through Device Unlock app
I've searched through the web past two days and found no solution whatsoever. Every service is down for now and I cannot find any ways to unlock my phone.
So, here's what I thought: Maybe here's someone who can actually develop or figure out a solution for this since many solutions are available for S6/S6e and many other t mobile phones, but not for S7.
I can be tester and provide any files/dumps if needed or anything you guys ask.
I believe I'm not the only one with this problem and if we try hard enough, we can do this. Many people can benefit from this also, so let's be useful.
To mods, if you believe this is a wrong place to post this thread, please move where it belongs.
Thanks to you all.
Click to expand...
Click to collapse
I stand with you. I think a bounty would be appropriate. I go loads of s7 and s7 edge to unlock. I may be at a huge loss if no unlock comes
---------- Post added at 10:13 PM ---------- Previous post was at 10:12 PM ----------
stuntman112 said:
We probably wont see a direct unlock solution on these T-Mobile/MetroPCS QUALCOMM based Galaxys for some time. The older models you mentioned are Exynos based CPUs, they are being unlocked all the time. Unlock app or trusted server for imei unlock is our only solutions for now.
Sent from my SM-N920P using Tapatalk
Click to expand...
Click to collapse
I believe of we have alot of people working toward it something interesting would come out if it. Considering s8 is also there, more people Wil be requiring unlock. It's only a matter of time
Factory reset your phone, then try to use the device unlock. You can select temporary unlock or permanent unlock. Once you are done you will have a sim unlocked device.
stuntman112 said:
We probably wont see a direct unlock solution on these T-Mobile/MetroPCS QUALCOMM based Galaxys for some time. The older models you mentioned are Exynos based CPUs, they are being unlocked all the time. Unlock app or trusted server for imei unlock is our only solutions for now.
Sent from my SM-N920P using Tapatalk
Click to expand...
Click to collapse
Actually, MetroPCS s7 & s7e device unlock is available for $20 and Qualcomm S6 and below is also unlockable, there are many remote unlock services on ebay/various websites for those devices.
I've been* trying to unlock my S7 since April but no luck.
I know this issues with t-mobile Quallcomm Galaxys are about locked bootloader but that's the only thing I found out.
If someone can make bounty pool or something similar, I would gladly participate.
*edit
KillerClaw321 said:
Factory reset your phone, then try to use the device unlock. You can select temporary unlock or permanent unlock. Once you are done you will have a sim unlocked device.
Click to expand...
Click to collapse
Lol. How many factory resets required? I still haven't gotten unlocked.
jazzdglass said:
Lol. How many factory resets required? I still haven't gotten unlocked.
Click to expand...
Click to collapse
You using the latest version not rooted?
KillerClaw321 said:
You using the latest version not rooted?
Click to expand...
Click to collapse
Yup. I'm on android 7.0. I could go back to 6.0.1 too. Why do you think this is a method to unlock? You need to connect to Tmobile database to unlock. Merely factory reset won't do anything. It's all in the cloud
jazzdglass said:
Yup. I'm on android 7.0. I could go back to 6.0.1 too. Why do you think this is a method to unlock? You need to connect to Tmobile database to unlock. Merely factory reset won't do anything. It's all in the cloud
Click to expand...
Click to collapse
I know, however when I had issues with the device unlock app a fresh install of the latest version worked and I was able to temporarily unlock for a month.
I did it just now after a factory reset, rooted and running no BS Rom...
T-mobile
I went through the same ordeal. I had to actually call t-mobile and get a representative to unlock it using the phone's IMEI number so it could be used on all carriers. Call them, I'm sure they will unlock it for you. That t-mobile unlock app doesn't do anything. Also under developer options, you need to check OEM unlock before you call t-mobile.
-Just my two cents, Bob
KillerClaw321 said:
I know, however when I had issues with the device unlock app a fresh install of the latest version worked and I was able to temporarily unlock for a month.
Click to expand...
Click to collapse
My device asks for active cellular connection in order to get temporary unlock, but I can't get carrier signal since phone is locked.... are you T-Mobile customer and were you using their sim card? I am not.
Boobteg4642 said:
I went through the same ordeal. I had to actually call t-mobile and get a representative to unlock it using the phone's IMEI number so it could be used on all carriers. Call them, I'm sure they will unlock it for you. That t-mobile unlock app doesn't do anything. Also under developer options, you need to check OEM unlock before you call t-mobile.
-Just my two cents, Bob
Click to expand...
Click to collapse
Called them maybe 10 times, even used their facebook page. Every single customer representative said phone is fully paid and nothing is blocking it but they can't help me because I'm not actual / original phone owner on their database, and person I purchased this phone from has no idea what unlock is, he's impossible to deal with. Maybe you have any tips for me?
Thank you everybody for taking your time and helping us.
Just a quick update, I just flashed latest G930U firmware and after SIM card insertion, phone asks for unlock code, which of course I have no idea what it is
KillerClaw321 said:
I did it just now after a factory reset, rooted and running no BS Rom...
Click to expand...
Click to collapse
I think you and @boobteg have a paid off devices eligible for unlock. What you need to know ow is that the device unlock app doesn't work on custom roms. It requires a stock rom. There are some of us who are not eligible for unlock.
Any progress?
none so far
Same Solution
Hi! im having the same problem, i cant unlock my s7 tmobile with device unlock app, every place i try say it that the service is down. II flashed with the g930U, now the smartphone ask me for an unlock code, there is anyway to find that "unlock code" to unlock the phone in this way? Or maybe installing an non stock rom is possible to unlock the phone?
Help!! i cant use it in my actually country
morpheus1978 said:
Hi! im having the same problem, i cant unlock my s7 tmobile with device unlock app, every place i try say it that the service is down. II flashed with the g930U, now the smartphone ask me for an unlock code, there is anyway to find that "unlock code" to unlock the phone in this way? Or maybe installing an non stock rom is possible to unlock the phone?
Help!! i cant use it in my actually country
Click to expand...
Click to collapse
For now, no way to unlock..

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