Hi Michelle, I guess you are the same mluna from Mozilla forum.
Thank you for your response, my device is from Colombia, and is the same device
reported as bricked by my lovely wife aledelreal.
https://support.mozilla.org/es/questions/974554#answer-494262
So, we bought the phone in Movistar Col
I have tried the same procedure that Sven, and get the same message:
-- Install /sdcard ...
Finding update package...
Opening update package...
Verifying update package...
E:failed to verify whole-file signature
E:signature verification failed
Installation aborted.
I was very happy