Thanks, eventually I managed to fix it by doing a factory reset and then installing the usbnetwork using update menu like you suggested
I still have a problem though as I am not able to register my device after all this mess.
The thing is, before the brick event, the reboot method worked just fine.
I wonder if those two events are related (being unable to register the device with Amazon and the inability to perform updates via reboot).
The register attempt gives the following error (I believe thats the one related from logs).
E DeviceCredentialsManager:ParseError:error=Internal Error:Unable to parse server response
Would you recommend maybe obtaining the firmware 4.10 and updating the device to resolve all these issues?