Problem to unlock Device State with fastboot command

[Zhennify06]

Hi,

I’m posting this thread because I’m currently stuck with some problems.

I installed /e/OS on my Fairphone 3 but now I want to going back to Android. I followed the steps like disable the secure boot but I’m unable to unlock the device state with “Fastboot”.

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.

Do you have any idea to solve my problem?

Thanks in advance for your answers =)

[AnotherElk]

Welcome to the community forum.

@Zhennify06

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.

Ok, Windows it is. In case of Windows 10 you might find some hints here …

FP3 How to solve non-recognized FP3 device in fastboot on a Win10 device (easy [/e/] OS installer)

Dear all, I recently decided to try out the [/e/] OS and started doing it according to instructions found here and on the [/e/] forum. However I got stuck in fastboot mode (phone not recognized by the system). While I had the device manager in fastboot mode I went under device manager and tried updating the drivers with the google driver. Win 10 would not let me update the driver (selected option under Other Devices/Android/right clicked and selected update driver then selected “Browse m…

There’s also this … even if over time it turned out to be more of an ADB/MTP repair than a fastboot repair, but who knows …

@AnotherElk

Here’s a generic driver and ADB/Fastboot repair …

• Disconnect the phone from the computer.
• In Control Panel - Programs and Features:
  Uninstall the Android SDK (if installed) and everything with “MTP” or “ADB” in its name.
• Reboot Windows.
• In Control Panel - Device Manager:
  Enable View - Show hidden devices, and then uninstall every possible ADB, MTP and smartphone device, hidden or not.
• Reboot Windows.
• Connect the phone again. (Windows should install the necessary drivers then automatically. They can be named after a different device, this doesn’t matter.)
• Download the current Android SDK Platform Tools
• Unzip the ZIP file to e.g. C:\platform-tools (you can unzip it to wherever you like).
• Add the path to where you unzipped the tools to the Windows “PATH” environment variable , so adb and fastboot could be run from everywhere without always having to prefix them with the path.

[Stephanie]

Hello,
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.

[Zhennify06]

Hi,

So My problem is solved!

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.

By the way thanks for your help @AnotherElk =)

https://forum.fairphone.com/t/trying-to-install-e-os-on-fp3-but-it-hangs-on-fastboot-on-windows-10/61544/2