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Hello XDA, I've been wanting to root my S6 for a while now, and i think you can do it with adb. So when trying this i noticed i needed an unlocked bootloader, and i thought i had it because i had CRom service on my S6, but never opened it. When i did, it just crashed. Now, i'm not sure if I can just use
Code:
fastboot oem unlock
or i need something else. I'm on Mac so i am very, very limited. I at least can get adb to work. If i can use adb and or fastboot to unlock my device's bootloader (without messing DM Verity) then please tell me right away.
iLoveMuffinz said:
Hello XDA, I've been wanting to root my S6 for a while now, and i think you can do it with adb. So when trying this i noticed i needed an unlocked bootloader, and i thought i had it because i had CRom service on my S6, but never opened it. When i did, it just crashed. Now, i'm not sure if I can just use or i need something else. I'm on Mac so i am very, very limited. I at least can get adb to work. If i can use adb and or fastboot to unlock my device's bootloader (without messing DM Verity) then please tell me right away.
Click to expand...
Click to collapse
What variant s6 do you have?
Go to Settings - About Device - Build number. Tap on that repeatedly until you see that Developer Options has been enabled.
Go back to Settings. You will now see a new entry called Developer options. Tap on that.
Under Developer options you will see OEM Unlock. Switch that to On.
And you are done! Just that easy!
koop1955 said:
Go to Settings - About Device - Build number. Tap on that repeatedly until you see that Developer Options has been enabled.
Go back to Settings. You will now see a new entry called Developer options. Tap on that.
Under Developer options you will see OEM Unlock. Switch that to On.
And you are done! Just that easy!
Click to expand...
Click to collapse
It's not that easy, the option is called "Allow OEM unlocking" which I already have turned on. All that option does is allow the bootloader to be unlocked.
sofir786 said:
What variant s6 do you have?
Click to expand...
Click to collapse
920T Unlocked.
I know. A rare S6 model, bought in Panama.
iLoveMuffinz said:
920T Unlocked.
I know. A rare S6 model, bought in Panama.
Click to expand...
Click to collapse
What version android are you on, btw the user previous is correct, once you use OEM unlock all you need to do is flash cf-autoroot, OEM unlock make sure that after rooting the phone does not trip frp and just lock you out of your device.
---------- Post added at 07:49 PM ---------- Previous post was at 07:47 PM ----------
Just another note the g920t is classified as a T-mobile variant, it's got its own whole forum here on xda, if you don't get any luck here might be an idea to pop on over there and have a look see
sofir786 said:
What version android are you on, btw the user previous is correct, once you use OEM unlock all you need to do is flash cf-autoroot, OEM unlock make sure that after rooting the phone does not trip frp and just lock you out of your device.
---------- Post added at 07:49 PM ---------- Previous post was at 07:47 PM ----------
Just another note the g920t is classified as a T-mobile variant, it's got its own whole forum here on xda, if you don't get any luck here might be an idea to pop on over there and have a look see
Click to expand...
Click to collapse
Ok, I'm on 6.0.1 (Y is Samsung so slow when releasing updates) and a quick reminder: I'm on Mac, how am I supposed to flash CF-autoroot?
And I got confused by "make sure after rooting​the phone does not trip frp and just lock out of your device" Do you mean to be careful not to brick my device?
iLoveMuffinz said:
Ok, I'm on 6.0.1 (Y is Samsung so slow when releasing updates) and a quick reminder: I'm on Mac, how am I supposed to flash CF-autoroot?
And I got confused by "make sure after rooting​the phone does not trip frp and just lock out of your device" Do you mean to be careful not to brick my device?
Click to expand...
Click to collapse
FRP is factory reset protection, if you don't allow OEM unlock when after you have carried out root and try to log into phone again you won't be able to do so, it's a security feature, frp is very tricky and it's important you make sure you have OEM unlock enabled before trying to do anything. You can use a software called heimdall which is similar to Odin and can be downloaded for mac. Yeah samsung always rolls out updates for international before anything else, just how they work. Before doing anything I highly advise you to visit the g920t forums, you will get more info there than you will here on the international forum. I hope you manage to get things done
sofir786 said:
What version android are you on, btw the user previous is correct, once you use OEM unlock all you need to do is flash cf-autoroot, OEM unlock make sure that after rooting the phone does not trip frp and just lock you out of your device.
Click to expand...
Click to collapse
Thanks for pointing that out. I don't know why I expect people to be grateful on XDA, just because someone tries to help them.
Using a Mac, you flash files using Heimdall: http://glassechidna.com.au/heimdall/
Ok so I think I'm good to go:
I attached some screenshots checking if everything is correct. Also, is http://glassechidna.com.au/heimdall/ the correct and official site to get Heimdall? And my device's build is G920TUES5DQD1 which was released a few days ago, and I'm not sure if the CF auto root file was based on an earlier update. Will I still be able to use it?
is g920v bootloader unlockable?
is it possible to downgrade thanks to this oem unlock?
sofir786 said:
FRP is factory reset protection, if you don't allow OEM unlock when after you have carried out root and try to log into phone again you won't be able to do so, it's a security feature, frp is very tricky and it's important you make sure you have OEM unlock enabled before trying to do anything. You can use a software called heimdall which is similar to Odin and can be downloaded for mac. Yeah samsung always rolls out updates for international before anything else, just how they work. Before doing anything I highly advise you to visit the g920t forums, you will get more info there than you will here on the international forum. I hope you manage to get things done
Click to expand...
Click to collapse
My phone has the front tripped, is there any way to reset it? I can't even figure out how to pull up the system info, I can pull up the recovery menu and hard reset but I don't know how to, if possible, reset the front. Any advice?
Sent from my LGE LG-LS777 using XDA Labs
iLoveMuffinz said:
Hello XDA, I've been wanting to root my S6 for a while now, and i think you can do it with adb. So when trying this i noticed i needed an unlocked bootloader, and i thought i had it because i had CRom service on my S6, but never opened it. When i did, it just crashed. Now, i'm not sure if I can just use
Code:
fastboot oem unlock
or i need something else. I'm on Mac so i am very, very limited. I at least can get adb to work. If i can use adb and or fastboot to unlock my device's bootloader (without messing DM Verity) then please tell me right away.
Click to expand...
Click to collapse
Install Windows in a Virtual Machine, Use ODIN to flash TWRP, flash Magisk.
help with unlock bootloader s6 920v
first, i want to thank the ones that can help and enlight others. thanks.
Now, i have a verizon s6 920v and doesnt present the "OEM..." option in Dev section. could i know if is unlock the bootloader, in other way?
thanks again.
joeknz said:
first, i want to thank the ones that can help and enlight others. thanks.
Now, i have a verizon s6 920v and doesnt present the "OEM..." option in Dev section. could i know if is unlock the bootloader, in other way?
thanks again.
Click to expand...
Click to collapse
As far as I know, and what has been the fact since the release of the 920V, there's has been no known case where the bootloader has been unlocked. Due to Verizon's restrictions, the S6 is hardlocked. The only way that it might ever be unlocked is if someone reverse engineers the bootloader software, creating an unlocked version that can be flashed, and that will still pass the phone's security checks. I wouldn't hold your breath for it though, because it's been 3 years and no solution yet.
i had same issues
i have been trying to unlock my s6 smg 9208 everything that i tried failed need really your help i can't use my keyboard and mouse ????
Most Samsung phones are unlocked, Only a small percentage of Samsung phones has locked bootloaders. Just pop a different carrier SIM and make sure it works, If different sims work then your device has an unlocked bootloader.
mzayd786 said:
Most Samsung phones are unlocked, Only a small percentage of Samsung phones has locked bootloaders. Just pop a different carrier SIM and make sure it works, If different sims work then your device has an unlocked bootloader.
Click to expand...
Click to collapse
That is incorrect, what you are referring to is carrier locked. and is done to most phones sold in the US. Most can be unlocked once fully paid for and after 90 days of service.
Bootloader lock has nothing to do with sim cards at ALL!! It does have everything to do with being able to install other roms and firmware via non official sources.
Sprint Samsung Galaxy S6 model SM g920p FRP lock is blocking me from enabling OEM unl
koop1955 said:
Go to Settings - About Device - Build number. Tap on that repeatedly until you see that Developer Options has been enabled.
Go back to Settings. You will now see a new entry called Developer options. Tap on that.
Under Developer options you will see OEM Unlock. Switch that to On.
And you are done! Just that easy!
Click to expand...
Click to collapse
Hello to you super techs I'm a newbie to this hope i'm not posting out of place but my question is how do I set up my Windows PC with ADB to use ADB fastboot unlock to unlock my bootloader because FRP protection has me locked out of the phone and I can't use the build number 2 unlock OEM or is that even possible I have been searching the web and XDA 2 try and find a way to open this phone I bought for myself for Christmas not knowing anything about a phone being FRP locked to a Google account is it possible to unlock this phone so that I can Flash it and maybe be able to use it I checked the IMEI number and it comes back good so say Sprint customer service but they couldn't help me with the FRP because I bought the phone second hand could you guys please point me in the right direction if I'm in the wrong spot posting my apologies to the thread host
Hello, I just got a used V30 US998 from B&H Photo, my first LG phone. I tried to unlock the bootloader but when I reboot into bootloader I get this screen that says Welcome to fastboot for bootloader unlock (image bellow) but no fastboot commands work and the only options I have with the volume buttons are RESTART or POWER OFF. I am I missing something? has anyone come across this? So far I tried a hard reset, I flashed the oem rom with LGUP with no luck. Any Help or insight would be greatly appreciated.
FZZF said:
Hello, I just got a used V30 US998 from B&H Photo, my first LG phone. I tried to unlock the bootloader but when I reboot into bootloader I get this screen that says Welcome to fastboot for bootloader unlock (image bellow) but no fastboot commands work and the only options I have with the volume buttons are RESTART or POWER OFF. I am I missing something? has anyone come across this? So far I tried a hard reset, I flashed the oem rom with LGUP with no luck. Any Help or insight would be greatly appreciated.
Click to expand...
Click to collapse
It could be a used US cellular us998. The us cellular version does not have a unlockable bootloader like the open market us998.
FZZF said:
Hello, I just got a used V30 US998 from B&H Photo, my first LG phone. I tried to unlock the bootloader but when I reboot into bootloader I get this screen that says Welcome to fastboot for bootloader unlock (image bellow) but no fastboot commands work and the only options I have with the volume buttons are RESTART or POWER OFF. I am I missing something? has anyone come across this? So far I tried a hard reset, I flashed the oem rom with LGUP with no luck. Any Help or insight would be greatly appreciated.
Click to expand...
Click to collapse
How are you trying to unlock the bootloader? You have to flash the unlock.bin file given to you by the LG Developer Bootloader Unlock list, after you've entered the IMEI and DEVICE-ID (and it was verified as being eligible) after you've created an LG developer account.
Have you done all that?
You can't just walk up to the phone and OEM unlock the bootloader.
From that screen you're on in your picture, you flash the unlock.bin file with a fastboot flash command.
You've read this post?
https://forum.xda-developers.com/showthread.php?p=75449612
And this one?
https://forum.xda-developers.com/showthread.php?p=75403645
Sent via open market LG US998 V30/V30+
---------- Post added at 07:19 AM ---------- Previous post was at 07:19 AM ----------
R800x_user said:
It could be a used US cellular us998. The us cellular version does not have a unlockable bootloader like the open market us998.
Click to expand...
Click to collapse
B&H Photo wouldn't sell used U.S.Cellular model phone.
I can't tell if he says he bought it from B&H Photo directly, or the person he bought it from claims they bought it from B&H Photo?
If the latter, does he have any proof from the seller it's actually from B&H Photo? If he bought it himself from there, then he knows for sure.
Sent via open market LG US998 V30/V30+
ChazzMatt said:
How are you trying to unlock the bootloader? You have to flash the unlock.bin file given to you by the LG Developer Bootloader Unlock list, after you've entered the IMEI and DEVICE-ID (and it was verified as being eligible) after you've created an LG developer account.
Have you done all that?
You can't just walk up to the phone and OEM unlock the bootloader.
From that screen you're on in your picture, you flash the unlock.bin file with a fastboot flash command.
You've read this post?
https://forum.xda-developers.com/showthread.php?p=75449612
And this one?
https://forum.xda-developers.com/showthread.php?p=75403645
Sent via open market LG US998 V30/V30+
---------- Post added at 07:19 AM ---------- Previous post was at 07:19 AM ----------
B&H Photo wouldn't sell used U.S.Cellular model phone.
I can't tell if he says he bought it from B&H Photo directly, or the person he bought it from claims they bought it from B&H Photo?
If the latter, does he have any proof from the seller it's actually from B&H Photo? If he bought it himself from there, then he knows for sure.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Thank you for the replies. To clarify your legit questions, I bought the phone directly from B&H and even called LG to confirm it is an unlocked open market US998 and is under warranty. I've always had HTC phones and always unlocked and rooted them etc... LG is new to me but I am somewhat familiar with the process bootloader unlock is very similar to HTC. Back to the bootloader issue yes I did everything you mentioned other then getting the unlock code Bin file from LG because I can't get the device-ID from the phone since it wont go into fastboot mode it wont do anything when I issue fastbood commands in that screen. and yes I read everything I can read about doing this and tried everything I can think of, but of course I can't think of everything! it could be a very simple thing I am missing. I read somewhere that, that screen is a debug bootloader. also when I reboot into recovery using ADB command it says "NO COMMANDS HERE" if I remember correctly. it's very frustrating when you can't void the warranty on your phone!!! Again I appreciate the responses.
FZZF said:
Thank you for the replies. To clarify your legit questions, I bought the phone directly from B&H and even called LG to confirm it is an unlocked open market US998 and is under warranty. I've always had HTC phones and always unlocked and rooted them etc... LG is new to me but I am somewhat familiar with the process bootloader unlock is very similar to HTC. Back to the bootloader issue yes I did everything you mentioned other then getting the unlock code Bin file from LG because I can't get the device-ID from the phone since it wont go into fastboot mode it wont do anything when I issue fastbood commands in that screen. and yes I read everything I can read about doing this and tried everything I can think of, but of course I can't think of everything! it could be a very simple thing I am missing. I read somewhere that, that screen is a debug bootloader. also when I reboot into recovery using ADB command it says "NO COMMANDS HERE" if I remember correctly. it's very frustrating when you can't void the warranty on your phone!!! Again I appreciate the responses.
Click to expand...
Click to collapse
Problem solved. The issue was a missing driver in windows 7. I am attaching the driver in case anyone runs into the same problem just double click "install.exe" after extracting the zip then connect the phone reboot into bootloader and you should see Fastboot in device manager, now Fastboot commands should work. Thanks to everyone that responded.
Just want to say that this is the ONLY answer that worked for me, out of countless pages of irrelevant or bad advice. The file above will fix the "Other devices: Android" missing device when in fastboot mode on Windows 7. Fastboot will then see your LG-V30.
aumua said:
Just want to say that this is the ONLY answer that worked for me, out of countless pages of irrelevant or bad advice. The file above will fix the "Other devices: Android" missing device when in fastboot mode on Windows 7. Fastboot will then see your LG-V30.
Click to expand...
Click to collapse
WTF Troubleshooting Tip #7.
No need to go through countless pages of irrelevant or bad advice. . Glad you found it, but it's posted in the WTF INSTRUCTIONS Troubleshooting Tips for good reason. @FZZF is thanked there also.
Well yeah I guess that's true. Most of the bad advice was from across the Internet over there, not from here of course.
I'd suggest to always make it a habit of typing 'fastboot devices' or 'adb devices' whenever you connect the device to your pc.
If (either of) those commands don't respond with a listing of your device name / number... then the pc can't see the device. That's a
pc driver problem.
Cheers, keep it simple.
Hi, I recently flashed the stock LG V30 US998 f variant rom through LGUP and even though the bootloader is clearly unlocked, the bootloader says I have to enable OEM unlocking. OEM Unlocking is greyed out in the settings and it will not let me use fastboot commands at all. I plan to sell this phone tonight and I can't seem to get OEM Unlocking turned on even though the bootloader is unlocked to use fastboot commands. Can someone direct me to some help, please? Thank you.
Hi guys, how y'all doing?
I've been trying to unlock the bootloader of my phone a couple of months now and every single attempt is a failure. I've done all the steps right but, in the Motorola website I receive a message that my phone don't apply for unlocking the bootloader.
Anyone knows anything about this, if it can be bypassed somehow or if has anyway to contact Motorola to get any information about this issue.
Thanks in advance.
1Apokalypsis said:
Hi guys, how y'all doing?
I've been trying to unlock the bootloader of my phone a couple of months now and every single attempt is a failure. I've done all the steps right but, in the Motorola website I receive a message that my phone don't apply for unlocking the bootloader.
Anyone knows anything about this, if it can be bypassed somehow or if has anyway to contact Motorola to get any information about this issue.
Thanks in advance.
Click to expand...
Click to collapse
Well, I can think of a few reasons why you can't unlock your bootloader.
1. The most obvious one: you haven't enabled OEM unlocking under developer settings.
2. You're not using a retail device. Only retail devices can unlock BL AFAIK. Non-retail devices are those sold by carriers (AT&T, Verizon, whatever else).
3. Your bootloader is not unlockable, even if its retail.
The 1st problem is easy to solve and I won't discuss it.
The other two are stored as variables on your bootloader and can be checked with the "fastboot getvar [x]" command, where [x] is the variable name.
The variables of interest here are:
1. "ro.build.version.full" - this tells if device is retail or not. It should return something like "retail.en.US" or "retail.xx.XX", depends on region.
2. "cid" - I have no idea cid stands for, but I think it's related to bootloader type.
3. Be aware that I don't know if the 1st variable has the same name on all motorola devices. In case of doubt, use "fastboot getvar all" to list all variables, then you can check manually.
Nowadays, it's not common for Motorola devices to have locked cids. In Lollipop/Marshmallow days, some devices had that issue where it was retail but impossible to unlock due to cid. The un-unlockable cids should be the same for all devices but you'll have to research, I don't remember which is which anymore.
SUMMARY:
1. check the developer setting "Allow OEM unlocking". It's a switch. If it's off, turn it on and you'll be able to unlock the BL
2. If that doesn't work, check if your phone is a retail model. If not, you're out of luck.
3. If it is retail and you can't unlock it, you are either providing the wrong unlock code to fastboot, or you have an unlockable cid, in which case you're also out of luck.
[edit]
Forgot to mention this, if your device has a mediatek CPU/SoC, forget about it, they're impossible to unlock too.
[edit 2]
I found the cid list: https://forums.lenovo.com/t5/MOTOROLA-Android-Developer/Bootloader-Unlock-Problems/m-p/3222809
freeZbies said:
Well, I can think of a few reasons why you can't unlock your bootloader.
1. The most obvious one: you haven't enabled OEM unlocking under developer settings.
2. You're not using a retail device. Only retail devices can unlock BL AFAIK. Non-retail devices are those sold by carriers (AT&T, Verizon, whatever else).
3. Your bootloader is not unlockable, even if its retail.
The 1st problem is easy to solve and I won't discuss it.
The other two are stored as variables on your bootloader and can be checked with the "fastboot getvar [x]" command, where [x] is the variable name.
The variables of interest here are:
1. "ro.build.version.full" - this tells if device is retail or not. It should return something like "retail.en.US" or "retail.xx.XX", depends on region.
2. "cid" - I have no idea cid stands for, but I think it's related to bootloader type.
3. Be aware that I don't know if the 1st variable has the same name on all motorola devices. In case of doubt, use "fastboot getvar all" to list all variables, then you can check manually.
Nowadays, it's not common for Motorola devices to have locked cids. In Lollipop/Marshmallow days, some devices had that issue where it was retail but impossible to unlock due to cid. The un-unlockable cids should be the same for all devices but you'll have to research, I don't remember which is which anymore.
SUMMARY:
1. check the developer setting "Allow OEM unlocking". It's a switch. If it's off, turn it on and you'll be able to unlock the BL
2. If that doesn't work, check if your phone is a retail model. If not, you're out of luck.
3. If it is retail and you can't unlock it, you are either providing the wrong unlock code to fastboot, or you have an unlockable cid, in which case you're also out of luck.
[edit]
Forgot to mention this, if your device has a mediatek CPU/SoC, forget about it, they're impossible to unlock too.
[edit 2]
I found the cid list: https://forums.lenovo.com/t5/MOTOROLA-Android-Developer/Bootloader-Unlock-Problems/m-p/3222809
Click to expand...
Click to collapse
Thanks for all the info.
1. I liked that you mentioned the "OEM Unlocking" switch, but I'm not a total dummy, it's turned on lol.
2. I don't believe that my model is one of those sold by carriers, at least afaik.
3. I will try to get the variables and look it up, but I'm feeling that I'm out of luck already.
It's the Qualcomm version of the One Fusion+
1Apokalypsis said:
Thanks for all the info.
1. I liked that you mentioned the "OEM Unlocking" switch, but I'm not a total dummy, it's turned on lol.
2. I don't believe that my model is one of those sold by carriers, at least afaik.
3. I will try to get the variables and look it up, but I'm feeling that I'm out of luck already.
It's the Qualcomm version of the One Fusion+
Click to expand...
Click to collapse
If it's the qualcomm version and it doesn't unlock it must be bc it must be either bc it is not retail or cid. If you're using a retail phone and cid is unlockable then keep trying/check unlock code/try asking for it again, whatever, it should work.
I'm just about to return my Samsung A52 5G after realizing that the bootloader seemingly can't be unlocked. I did a quick google and thought it was possible, but apparently the North American version is locked.
Now I'm looking at this phone as my next option. Can anyone confirm if the OEM Unlock button appears in the Canadian version of this phone? I'm buying from the OnePlus website, and it says that it is carrier-unlocked (not T-Mobile).
I'm not even planning to root the device or do anything advanced, but I want to have the option to install Lineage later on once I stop receiving OTA updates, assuming that the Lineage devs make a build for this phone.
_eternal said:
I'm just about to return my Samsung A52 5G after realizing that the bootloader seemingly can't be unlocked. I did a quick google and thought it was possible, but apparently the North American version is locked.
Now I'm looking at this phone as my next option. Can anyone confirm if the OEM Unlock button appears in the Canadian version of this phone? I'm buying from the OnePlus website, and it says that it is carrier-unlocked (not T-Mobile).
I'm not even planning to root the device or do anything advanced, but I want to have the option to install Lineage later on once I stop receiving OTA updates, assuming that the Lineage devs make a build for this phone.
Click to expand...
Click to collapse
I'm having the same issue. T-mobile US and the OEM Unlock button is gone
greenteaandroid said:
I'm having the same issue. T-mobile US and the OEM Unlock button is gone
Click to expand...
Click to collapse
I believe there's a method to unlock the T-Mobile US version. I asked OnePlus's support, and there was a separate set of instructions for T-Mobile, so they might be able to help you.
I ended up buying the carrier-unlocked phone in Canada, and everything worked out; the OEM Unlock button wasn't blocked or anything. You just need the fastboot and adb drivers for the device, as usual.
There's a way to get oem ungreyed,read aroud
Even OEM and SIM unlock are separate, you have to have SIM unlock first before enabling OEM unlock.
Units sold directly from OnePlus.com is SIM unlocked.