Fairphone 2 / Encryption not possible

[Stef_Lfeld]

Hello,

I got delivered two new Fairphone 2 on Wednesday.
The are mounted with the same model of SD card and got now Fairphone Open OS 17.10.1 with pico version of OpenGapps 5-10-2017 on 'em.

Even though bot phones should be identically, they are behaving a little different.

The problem I have is that it was not a problem to encrypt one of the phones but it is not working with the other.
What happens is: Battery fully charged and connected to a power supply, choosing encrypt phone next is causing the phone instantly to reboot with the nice Android robot in the background. After a boot not lasting longer than normal the phone still stays in un-encrypted status.

Is there anything you can advise me to do?

By the way: Is it normal that one of the Fairphones is rebooting automatically from time to time?

Looking forward for your reply’s. Thanks a lot in advance!

Kind regards
Stefan

[freibadschwimmer]

Is it normal that one of the Fairphones is rebooting automatically from time to time?

No. Have a look here for possible reasons/solutions:

FP2 random reboots - see #rebootsguide for help

The Troubleshooting tips moved here. Original Post: Mine has started rebooting on a regular basis as well. I've tried a factory reset and it doesn't seem to help. Its rebooted about 15 times today so far. Last night the touch stopped working so I couldn't enter my pin after a reboot, it took a lot of attempts before it would respond. Bit dissapointed. Quick question, does anyone have the Peace of Mind thing on theirs? Mine doesn't apart from once today when it randomly rebooted I could s…

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After a boot not lasting longer than normal the phone still stays in un-encrypted status.

Try to make a factory reset first. (Go in settings to backup & restore). Note that this will delete all data, yet I am suggesting this since you said your phone is new.
It is possible that when installing Open OS the length of a partition got messed up and the phone can’t write the encryption header (This depends on the way how you installed the OS; see for example here). A factory reset should solve this issue. Try to encrypt again right after the factory reset.

[Smojo]

Hey,

I read the linked bugtracker issue and is my understanding correct the the problem with encrytpion is most probably related to the way of performing a factory reset?

I remember I used TWRP and not fastboot to perform a factory reset after I hit the SnooperStopper issue.

So can you @freibadschwimmer confirm that my understanding correct that only a fastboot full wipe (factory reset) will lead to the encryption problem and the wrong block size (-> necessary data partition re-size before it works again)?

[freibadschwimmer]

So can you @freibadschwimmer confirm that my understanding correct that only a fastboot full wipe (factory reset) will lead to the encryption problem and the wrong block size

This is my understanding as well, that the block-size issue relates to the fastboot wipe.

[Stef_Lfeld]

Hi Guys,

Factory reset via TWRP finally solved the encryption problem.
Will keep you updated regarding the self-reboot-issue.

Thanks a lot for your help!

Best regards
Stefan

[phonefrog]

At first many thanks for your info.

My problem currently is:

I changed my new FP 2 to Fairphone open. When going back to the factory conditions i faced some problems and downloaded “FP2-gms-17.10.1-manual.zip” and flashed under Linux Ubuntu with the command “sh flash-for-unix.sh” . Everything was okay and also the Google services (I wanted them back )were running without problems.
The only item is: No encryption possible. When touching “encrytion” the FP 2 restarts and does not execute encryption.

I understood that I have to use TWRP but what is for me the simplest method to use TWRP under Linux? I also found an TWRP APP in the google store. Preferably i would download directly from the TWRP page.
Thanks in anticipation.