Yes, this works.
I recently tried that in a slightly different situation and recognized
the textual boot menu that can be controlled with the volume buttons.
A moment ago I had again the restart problem as described above.
Pressing power and volume-up for 8 seconds actually caused the phone to
t
Press and hold "power" + "volume up" buttons for about 8 seconds
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https://bugs.launchpad.net/bugs/1445913
Title:
System hangs on restart on the Bq Aquaris 4.5
To manage notifications a
Here the same,
after pressing the restart button, the phone is showing a pale violet
background permanently.
The battery power is at least 75 %.
No possibility to do anything unless to wait until the battery is empty.
Bq Aquaris E4.5
Ubuntu 14.10 (r23)
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My phone is currently experiencing the pale violet background issue,
this was after restarting as a result of some irregularities in the
behaviour of the phone (swiping from either side would open happen if
you brought down the notification area from the top)
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubuntu-touch-meta (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1445913
T