installation of /e/OS on Fairphone 2 doesn't work

[Commown-team]

Describe the bug
The procedure doesn't finish and get stuck at the last step of the process "confirm and run"

To Reproduce
Steps to reproduce the behavior:

1. Enable USB debugging and OEM unlocking
2. The Fairphone 2 is detected by OpenAndroidInstaller, click on "continue"
3. The requirements are verified
4. Zip file of /e/OS for Fairphone 2 and twrp recovery file (.img) are uploaded
5. Click on Continue
6. Click on "Confirm and run" : the Fairphone 2 reboots into the bootloader
7. Click on Continue
8. Click on "Confirm and run" : the Fairphone 2 stays in fastboot mode and openandroidinstaller loads for an indefinite time... The button "Continue" is not clickable and the procedure can't be continued

Expected behavior
At step 8 of the description above, the expected behavior is that the button "Continue" is clickable after unlocking the bootloader

Desktop (please complete the following information):

• OS: Ubunu
• Version : 20.04

Smartphone (please complete the following information):

• Device: Fairphone 2
• OS: (to be verified)
• Version (to be verified)

openandroidinstaller.log

[tsterbak]

@Commown-team Thank you for your interest in the project! :)
This should not happen. Sorry about that.

Can you please attach the log file so I can investigate the issue? You can find it in the same directory as the executable.

[Commown-team]

Thank you for your reactivity. I've attached the log file. Hope it helps to understand this issue !

[tsterbak]

Thank you for providing the log file! That helps a lot 🙂

It looks like you run into an issue that was fixed in the latest release 0.4.2-beta. Do you have the FP2 at hand and could try again? Let me know if the issue persists or another issue appears.

[tsterbak]

Hi @Commown-team,
we now had a few releases in the meantime and this issue should be fixed. Can you possibly retry if you have the device still available? :)

[Gredin67]

I had a similar behaviour on a Fairphone 3. After selecting twrp and ROM file (/e/OS), continue button remains grayed out. Cannot continue the procedure. The manual procedure is working fine, see https://doc.e.foundation/devices/FP3/install

[tsterbak]

Hi @Gredin67, thanks for reporting this issue!
It looks like a different issue to me as far as I can tell. Could you attach the log file of this trial? It seems like the ROM and/or twrp image could not be validated properly. Thank you 🙂

[Gredin67]

Sorry I don't, it was not my phone and we switched to manual install cause no time.
Can you explain how and why you validate the ROM and TWRP files ? Just by checking the filename ? Or a checksum ?

If people have to download those files manually and can chose the Android ROM and TWRP version they want (provided it supports), why enforce this verification ?

My suggestion would be to add a checkbox to deactivate ROM/TWRP file checking and be able to continue with the process even if the validation fails. Of course explaining the associated risks.

[Gredin67]

I'm pretty sure @Commown-team could try again on a FP3 and send the logs.

[tsterbak]

Can you explain how and why you validate the ROM and TWRP files ? Just by checking the filename ? Or a checksum ?

They are validated as basic measures to prevent people from breaking their devices with random files.

• Twrp is only validated by checking the filename.
• for the ROM we check, if the pre-image field in the file /META-INF/com/android/ of the ROM actually contains the device code of the device.