Sometime ago, I managed to upgrade my Firefox OS on the ZTE Open to version 1.2. However, this upgrade broke many things, like the GPS and other features.
No matter how much I tried to downgrade, the phone would never respond.
That changed today, though.
I tried a crazy approach and deleted a folder in the root folder. Then, I put the 1.10B06 zip there and rebooted the phone.
While the phone was rebooting, I pressed the power and the volume up buttons together to enter recovery mode. Once there, I selected the zip file without much hope because I had tried that a zillion times with no success.
But the phone acted differently and showed me a bar with the words "updating."
In less than 2 minutes, it showed "finished" and I rebooted the phone to a fully operational 1.1 downgrade.
The ConnectA2 app to use WhatsApp also works now.
Who would have said that a desperate move would save the phone? But you know the saying: Genius is 1% inspiration and 99% desperation! :P
Congratulations! Downgrades are sometimes necessary. In fact that's how I solved my problems with Firefox 40: I went back to Firefox 39. :P
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