I pulled the battery (I'm so glad for removable batteries) and, after multiple attempts, got a bit further. I reached a menu that has "use vol up/down to select item" and I did the factory reset. But when I choose "reboot now" it just brings me back to the "installing" Android dude with the...
I have the same issue (factory reset, "downloading" for hours, same warning message at the top).
Did you resolve it successfully and what did you do, please?
I tried the vol+, power, home together but no response.
Thanks!
Telson