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Re: Soft-bricked Nexus 7 with Ubuntu Phone

 

On 07/25/2013 10:09 AM, Daniel wrote:
Am 25.07.2013 19:03, schrieb John Kim:
On 07/25/2013 09:45 AM, András Mamenyák wrote:
Hi!
You should use fastboot in fastboot mode, not adb.
And you should simply reboot into recovery and flash the ubuntu files (you have adb there too)


On Thu, Jul 25, 2013 at 6:32 PM, John Kim <johnkim.ubuntu@xxxxxxxxx <mailto:johnkim.ubuntu@xxxxxxxxx>> wrote:

    Hello all,

    My name is John Kim, a newcomer to the Ubuntu Phone community,
    and I contribute to Ubuntu Docs and Quality team.  For the
    Quality team, I intend to start writing automated testcases for
    core apps.  My first task will be the music-app.

    My development environment is complete.  I installed the Ubuntu
    SDK and Qt Creator on my 13.10 laptop, and I successfully
    installed Ubuntu Phone into my Nexus 7 as well as SSH to it.  I
    personally prefer to ssh over USB than over IP because it's just
    faster.

    Normally, after minutes of inactivity, my Nexus 7 will power off
    on its own.  I can power again after holding the power button
    for a moment.  But as soon as I ran the music-app testcases with
    my Nexus 7 plugged in (QtCreator recognized it and set the
    device as development), which failed, my Nexus 7 was missing a
    music and video app icon. *When it powered down, my Nexus 7
    would get stuck perpetually in the Google screen with the
    unlocked lock image at the bottom. * The only way I could turn
    it off was hold the power and the volume down button, and go to
    "Power Off"; otherwise, my Nexus 7 will reboot back to the boot
    screen over and over again.

    I would like to know how I can restore my device with a fresh
    Ubuntu Phone build.  I haven't tried yet, but I'm quite sure
    that 'adb devices' won't recognize my Nexus 7 on neither the
    fastboot mode nor the Google screen.

    Thanks!

-- John Kim
    Ubuntu QA & Doc Contributor
    johnkim.ubuntu@xxxxxxxxx  <mailto:johnkim.ubuntu@xxxxxxxxx>


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Hi!

I entered fastboot mode, but running 'fastboot devices' shows nothing.
On recovery mode, 'sudo adb kill-server; sudo adb start-server; adb devices' shows no devices as well, even when I start sideload.

How exactly do I flash ubuntu files?
--
John Kim
Ubuntu QA & Doc Contributor
johnkim.ubuntu@xxxxxxxxx


what is the output of
lsusb
or
dmesg | tail


Hi Daniel,

The outputs of lsusb and dmesg are...

   *john@kotux:~$ lsusb*
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate
   Matching Hub
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate
   Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 04f2:b217 Chicony Electronics Co., Ltd Lenovo
   Integrated Camera (0.3MP)
   Bus 002 Device 017: ID 18d1:4e40 Google Inc.
   *john@kotux:~$ dmesg | tail*
   [51516.226040] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz),
   (300 mBi, 3000 mBm)
   [54988.705131] kvm: disabled by bios
   [54988.713699] kvm: disabled by bios
   [55663.698675] systemd-hostnamed[4006]: Warning: nss-myhostname is
   not installed. Changing the local hostname might make it
   unresolveable. Please install nss-myhostname!
   [56352.199773] usb 2-1.2: new high-speed USB device number 17 using
   ehci-pci
   [56352.293273] usb 2-1.2: New USB device found, idVendor=18d1,
   idProduct=4e40
   [56352.293285] usb 2-1.2: New USB device strings: Mfr=1, Product=2,
   SerialNumber=3
   [56352.293290] usb 2-1.2: Product: Android
   [56352.293295] usb 2-1.2: Manufacturer: Google, Inc
   [56352.293300] usb 2-1.2: SerialNumber: 015d2****

From the warning, should I install nss-myhostname?

--
John Kim
Ubuntu QA & Doc Contributor
johnkim.ubuntu@xxxxxxxxx


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