Hello, i have problem to unlock the bootloader the S7 i bought some does ago(second hand).
I have some experiences by rooting samsung devices(s3,s4,s5) but something does not work here.
I tried it with "adb". When i start the device normal and type in adb devices he shows me that it is conected.
When is start in download modus "star+ homebutton+vol down" and type in "fastboot oem unlock" or "fastboot flashing unlock", i just get waiting for device and nothing happens.
Can i be that this has to do with the fact that the device is from tmobile? I read that there are some problems with the bootloader there.
Thanks for your help.
The phones sold by T-Mobile (and, I believe, all US carriers) do not have an unlockable bootloader.
Sorry.
Related
My device is a One Plus One. I've installed an ADB driver from here: adbdriver (some site I've searched up on google) (Is this even safe? I've never seen anyone use this link before or maybe it's new. It's not a virus is it?)
So once I've installed it, I've typed all commands such as adb while my device is turned on but then when it gets to where I have to press my powerbutton+volume down and then go into the recovery screen, I see "Cyanogen Recovery" or whatever but that's what it says. Suddenly on my computer, the ADB device disappears altogether and I cannot see my One Plus One storage anymore (it's connected and even If I unconnect and reconnect it's still the same). I believe I've unlocked my phone already before so is this why? I just want to make sure and type fastboot oem device-info but when I type that nothing comes up. I've been trying to solve this and I don't know what to do anymore... Is it because I've already unlocked my device (but even I'm not sure if it's still unlocked and that's why I'm trying to confirm it by typing "fastboot oem device-info" which doesn't even work. Help please!
xMTOOLO said:
My device is a One Plus One. I've installed an ADB driver from here: adbdriver (some site I've searched up on google) (Is this even safe? I've never seen anyone use this link before or maybe it's new. It's not a virus is it?)
So once I've installed it, I've typed all commands such as adb while my device is turned on but then when it gets to where I have to press my powerbutton+volume down and then go into the recovery screen, I see "Cyanogen Recovery" or whatever but that's what it says. Suddenly on my computer, the ADB device disappears altogether and I cannot see my One Plus One storage anymore (it's connected and even If I unconnect and reconnect it's still the same). I believe I've unlocked my phone already before so is this why? I just want to make sure and type fastboot oem device-info but when I type that nothing comes up. I've been trying to solve this and I don't know what to do anymore... Is it because I've already unlocked my device (but even I'm not sure if it's still unlocked and that's why I'm trying to confirm it by typing "fastboot oem device-info" which doesn't even work. Help please!
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Greetings,
Thank you for using XDA Assist. To get you the expert help you need, I'm going to move this thread to your specific device Q&A forum.
Good luck!
You need to boot into bootloader by pressing volume up + power.
Then you can use "fastboot devices" to see if your OPO is being recognised.
"fastboot oem device-info" only works when you boot to bootloader
ADB is not fastboot btw.
http://www.androidcentral.com/android-z-what-fastboot
ADB does only work when your phone is booted to the Android system and USB-Debugging is enabled
http://www.androidcentral.com/what-adb
It's my first post on this forum, so I'm saying hello.
I've recently bought Nexus S which after turning on is stuck on Google logo, but I could enter fastboot and recovery. But it has locked bootloader. I tried unlocking it by "fastboot oem unlock" but it asks me if I'm sure and then i click yes it freezes (phone not fastboot). I tried it using different drivers, machines, operating systems, cables, but still nothing. Unbrick tool by AdamOutler says that "device not found". When trying to flash stock image by Odin on the phone there is message if I'm sure that I want to unlock bootloader but with nothing to choose, and after while it shows by red characters that system image was verified.
I don't know past of this phone. (I have no idea, which version of android was it running)
I'd be extremely helpful for any kind of advice.
Hello, i'm doing everything to unlock bootloader, in the and flashtool says that bootloader unlocked successful. But when I'm checking status in xzp it says - bootloader unlock allowed - Yes, but how i know, if bootloader is unlocked there must be written - bootloader unlocked - Yes!
Can someone help me?
Reboot your phone and if the start up screen says "Your device cannot be trusted" then success! You've done it!
I have been trying with no luck. it is unlockable, I think the only lock on my phone is just for carrier. I have tried for hours and the closest I got was yesterday, it finally connected to my phone with the right driver and when entering the user lock code got the familiar "command not allowed" on device.
Would rolling back the OS make a difference
I am about to lose my mind if I cant figure this out.
I have an LG Stylo 2 Plus model LG-K530F, and i have been trying to root it for several hours
I have certainly clicked the "Enable OEM Unlock" option, but no matter how many times I try the command on ABD, it will not work
I have made sure that my computer recognizes the device, and from the command prompt can successfully boot it into fast boot with "adb reboot bootloader"
I've poured through all sorts of threads and forum posts about other lg stylo 2's with different model numbers, I've factory reset the phone preemptively from suggestions, yet no matter what I try, I cannot get past "fastboot oem unlock"
And just to be sure, I have done a "fastboot flashing get_unlock_ability" just to make absolutely sure I allowed to unlock it.
It just *won't* for some reason
"fastboot getvar unlocked" tells me that it is not unlocked already
"fastboot oem lock" works and says its already locked
Does anyone have any help for me? Any suggestions? A thread or post I haven't seen yet?
The phone itself seems to imply that i need a code from LG to unlock it, there is a part on the fastboot menu that says "2) Write Unlock Key - fastboot flash unlock unlock.bin" but the LG developer website does not support this phone, so i wont be able to get one from them
lol yes you need the unlock bin from LG...
good luck
It's an old phone, I wanna root it, but no matter what I do "OEM Unlock" never shows up in the settings. I've reset the thing multiple times, changed the date, messed with auto updates a lot, but nope never shows up.
Some info that's probably useful. I got this phone from straight talk (a Walmart carrier, don't ask why it's a long story yes I know it was a terrible idea, Walmart was lying to us saying we needed to buy a phone from them and I didn't want to fight), and when trying to root it a friend who knows a lot more than I do told me to enter odin mode, and instead of that, in big red text (slightly covered by the camera) it says "entering fastboot mode...", (shown below) and doing "fastboot devices" spits out "R9AN90BYY5J" as the fastboot device, so I don't know.
I tried doing it via pc but when I do "fastboot oem unlock" (because apparently its not a real samsung phone so i should use fastboot) it says "
FAILED <remote: 'unknown command'>
Fastboot: error: Command failed"
from what I've heard (from a source I don't remember, and the same friend) apparently you just can't root us model phones, I tried all of this on my Galaxy A50 as well (I got it from inland cellular and apparently it's a verizon model phone, might have something to do with me going through verizon I don't know, but it is a real samsung phone) and oem unlock still never shows up. So am I just screwed?