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After I fully charged and rebooted my Aquaris E4.5 Ubuntu Edition, it freezed instantly. I am not able to complete any touch gesture.

pic: http://imgur.com/UuXxhOq

When I try to boot 'recovery' (Volume Up + Power), it will boot regularly without any change.

Can I reset my phone by connecting it via USB to an PC??

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up vote 3 down vote accepted

Yes. The standard recovery image does not permit adb access, so you need to supply one to ubuntu-device-flash which will allow adb to work. This image is a good choice:

http://people.canonical.com/~jhm/barajas/recovery.img

You can then type

ubuntu-device-flash touch --bootstrap --channel ubuntu-touch/stable/bq-aquaris.en --recovery-image recovery.img

Which will reset your phone (including a data wipe!) to factory state.

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up vote -1 down vote

Try recovery with wipe/data factory reset option during boot before flashing device from image. I had to do this on same new phone :-(

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If your answer is essentially a referral to another question, it would be better to flag this question as a duplicate of the other (with the [flag] button below this one). – David Foerster Apr 20 '15 at 12:47

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