I can list the device with “adb devices” command, I can also reboot the device with “adb reboot bootloader” unfortunately when I want to use the command “fastboot oem unlock” I only have the answer, “< waiting for any device >”.
I launch it with cmd with admin rights. I have the android drivers installed on my computer but it doesn’t help in any way.
Excuse-me for my English.
I have the same problem than Zhennefi : my phone is locked Fastboot mode. Than him, the screen indicates in red “Device State : locked”.
I have followed your instructions above, to install Android SDK Platform Tools. But, it is always locked.
In the command prompt (Power Shell), I type « adb devices », the device is recognized. Then, when it is in fastboot mode, it indicates « Waiting for any device ».
Have you an idea to resolve our problem ?
Thank you in advance.
None of the solutions worked on my computer. I went at my parents house and used their computer and it works it seems I had an issue for doing this task on my computer. I used the second link from @AnotherElk to solve this problem.