I have some issues with the installation of the /e/os on my Fairphone 4. I strugle on the step where i need to unlock the bootloader in this documentation: https://doc.e.foundation/devices/FP4/install
The Developer options are enabled and the OEM is unlocked. The command âadb reboot bootloaderâ runs in the CMD and the phone goes in the bootloader. But is still locked. To unlock I run âfastboot flashing unlockâ but ther is the message âwaiting for deviceâ. I hear also a disconecting sound from the Windows befor itâs get in the bootloader.
With google i didnât get a solution. Can someone of you help me with this problem?
I had the same problem.
It solved itself after I used my repository adb and fastboot instead of the ones from Android website. (some configuration problem maybe ?)
But I would recommend you try with a different cable first.
I am trying different cables and even different PCs. I can get into the Bootloader, it says âFastBoot Modeâ in red but when I enter âfastboot flashing unlockâ, nothing happens on the phone and the PC says âwaiting for devicesâ
One question, can I just try different cables and ports at this point or do I need to reboot the phone, then get into the bootloader using the different cable?
So far Iâve tried 3 cables and nothing is working.
Even when trying various cables itâs not guaranteed to work. The important thing is that those are data cables and not only cables valid for charging. You can check this when buying them.
Youâll also notice if the cables are USB data cables when connecting the PC while phone is in normal mode. In this case a notification should appear when phone is unlocked which allows you to change to data transfer mode (so youâre able to access internal data from PC then).
Had the same issue and it caused me some nerves. In the end changing the USB port and installing the Bootload USB-driver with permission to install everthing via troubleshooting.
I did a lot of research, unfortunately cannot find the instruction again to share.
Conclusion: Can also be a driver issue.
I also had to change the USB port to get it working. Maybe also changing the USB cable might help.
But please be cautions when locking the bootloader. My info is, that the current guide needs some update: fastboot flashing lock_critical is working fine, however the command fastboot flashing lock would result into a fastboot endless loop, however you can switch back to unlock unless you try to be very accurate:
There was 1 post of a person who did also run oem lock and the fastboot flashing lock. The last info i know is that the phone was âbrickedâ
I tried 3 different cables and 2 different PCs, none seem to work. All of these allow me to copy files to the phone. When I try to unlock the fastboot flashing, my device is not found.
I downloaded the current usb drivers from google, installed them instead of the Fairphone 4 drivers that Windows had chosen. Rebooted, used a usb 2.0 port (was recommended in a manual somewhere), no change.
Sorry, I have no experience with android yet. Bought the fp4 specifically to flash /e/OS and start learningâŚ
Hi @fp4 when you first asked 14 days ago I assumed you would eventually read Post #2 just above yours. 9 results currently show there for Waiting for device + FP4, two are marked solved, and there is plenty of learning potential in reading each thread !
Your link points to the thread we are in right now, so I looked around some more. Thread number 38806 had the solution:
While the phone is in bootloader mode, check device manager, update phone drivers and let Windows search for new drivers. Look for optional Windows Updates, select the three things, reboot, voilĂ .
Phone now shows up as fastboot device and I can continue trying to install.
Hello all.
Iâve had the same issue as fp4.
Followingf the link 38806 I was able to unlock the bootloader BUT, I am now stuck with the recovery mode.
Now in fastboot mode, the fastboot devices command works fine, but after doing adb reboot recovery command, the fastboot devices command doesnât work.
I then cannot continue with the flash of e/OS on my Fairphone4
I donât understand your problem exactly. Which issue do you have? You say fastboot devices command works fine in fastboot mode. So stay in fastboot mode and flash /e/OS. Why do you need an additional âadb reboot recoveryâ?
Maybe itâs better to add the exact link youâve followed for the installation than just mentioning âlink 38806â.