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How to fix ZTE Open hang at "sitting fox" loading screen?


When I turn on my phone, as it is is booting, it first shows the large Firefox OS logo, then shows the smaller logo and the sitting fox image. However, the phone hangs on this second screen indefinitely.

I've tried the following without success:

- Removing sim, sdcard, battery, and starting up just with the battery

- Using the Firefox OS System recovery util (booting with vol-up and power held) to both wipe data/factory reset and wipe cache partition

When I md5 check from the recovery util, it says "E: signature verification failed". It appears my OS has become corrupted; is there a way to restore it?

Additional System Details


  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:23.0) Gecko/20100101 Firefox/23.0

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  • Top 25 Contributor
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251 solutions 3015 answers

Helpful Reply

I'd contact ZTE for a replacement but before you do that, try contacting some folks here.

grinzie 3 solutions 21 answers

Helpful Reply

I had the same problem and found a solution: /questions/971252