Hello
I’ve follow this post for my X80PRo and it works nicely
Android Only Post
I have excatly same X80 Pro than you with E7E9 code.
I’ve found on Baidu the firmware and I have try to remove Windows 10 using method describe by allember https://techtablets.com/forum/topic/…ly/#post-42636</span>
Link to Firmware
And it works perfectly in my case 32GB
hope it helps
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