Monday, 18 July 2016

Phone Encryption, PIN/Password prompt at boot time stopped working



I recently upgraded my phone (Huawei G8) to android version 6.0.1

model: Huawei G8 RIO-L01
Build Number: RIO-L01C185B321
EMUI Version: EMUI 4.0
Android Version: 6.0.1
Custom Version: CUSTC185D005

I enabled encryption and the phone asked for password at boot time, which was normal. However, I then configured "accessibility” option ("switch access" for testing purposes) and the phone stopped prompting PIN/Password at boot time. The normal remedy of this problem over Internet is to disable accessibility and then reset PIN/Password but this did not work for me. No matter how many times I reset PIN/Password, the phone never prompted PIN/password at boot time.

So I tried encryption without enabling any accessibility option and it seemed to work as expected i.e. prompted PIN at every boot. However, as soon as I changed PIN (just for the sake of testing), it stopped prompting.

This phone also has no "Secure start-up" option to specify PIN at startup/boot explicitly. Having no password at boot sort of defeats the whole encryption purpose.

Anyone has solution to this issue? I did not try encryption in the old version (android 5) on this phone so I can't really say if this issue was present in earlier version as well.



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