Hello everybody, stock firmware for Nextway E9X released!
Updates:
1. Improved battery display inaccurate;
2. Improved the screen flash when booting and sleeping.
There has two way to upgrade E9X:
The First Way:
Password is geekbuying.com
1. Open the upgrade tool 
2. Connect the device to the computer, then click “Clear IDB”.
3. Then click “executive” to upgrade the device.
The Second Way:
Password is geekbuying.com
1. Run 
2. Select the firmware. Then connect the machine charger (must), USB line, long press Esc and then short press the Reset button 10 times; yet to find the device after the release Esc.
3. Found device and then click the “upgrade” to upgrade.
B.regards!
GeekBuying