On 2/23/14, 8:15 PM, Eric Shepherd wrote:
I'm trying to fix my bricked ZTE Open and not having any luck. It powers on with the
"Firefox OS" logo screen then hangs there. I cannot get into recovery mode.
What do I do now?
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Hey Eric,
Not sure what you mean by 'recovery mode'; also not sure how much you
know about the Android underpinnings of Firefox OS. It sounds like you
might be getting far enough along that the problem is *not* bricking the
phone but that you have a bad system (after all, if the phone is
booting, it is not bricked).
Do you have the Android tools 'fastboot' and 'adb'? Usually, with the
device plugged in to a USB port, one of the two should be able to see
the device. That is either
fastboot devices
or
adb devices
can contact the phone. If it is adb that sees the phone, then you can
use that to reboot but stop at the fastboot stage (read about adb, if I
remember correctly it's 'adb reboot bootloader') and use fastboot to
interact with the phone.
If neither see the phone when it 'hangs there', you might still be able
to catch the phone with fastboot as it is booting up (the boot usually
goes through a stage where fastboot will see the phone). If so, you can
line up a fastboot command to sideload a known good kernel and reboot
that, stopping at fastboot. Something like 'fastboot flash boot
goodboot.img; fastboot reboot-bootloader').
So, if you can get the phone into a mode where fastboot will see the
phone when booted on a good kernel, you are no longer 'bricked'. You
then need a good system.img and (maybe) userdata.img to load on the
phone. Those get flashed by fastboot and then you can 'fastboot
continue' to get past the fastboot stage.
Note the MDN instructions don't talk about things at this fundamental
level because most developers seem content to write over the filesystem
using adb on a booted phone and stop and restart B2G rather than flash
images using fastboot.
hope some of that is helpful,
~adrian
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