1. Get file -> Q5ii-optware
2. Extract the file at your PC.
3. Double click install.bat
4. In the prompt enter your Q5ii ipaddress
It will try to root your device
And then copy over the rar file and install into your unit
5. Then it will prompt again, "enter any key to continue" press any key.
6. Your unit will reboot
6. After reboot, open firefox (or your favorite browser) type in the ip address of your device
you should have screen below


7.Click the center chinese word to enter into setting page


8. Change the download path. Enter into the 2nd field, then click the button below.
(You can find out from Easeus file explorer, I am using SD card so my path is /mnt/mmcblk0/mmcblk0p1, your setting may varied.)


9. After you done, scroll down to the bottom, click the first chinese word, you back to the main page.


10. Click the transmission, you see the familiar transmission page.


I have tried in my unit, speed not bad I thinks it has something to do with the dual core CPU in Q5ii.
In fact it also support Xunlei offline download called " Li Xian", I don't have the account so I didn't try.

You can try change the interface language, in setting page, the 4th option on the left is changing the interface language, I try to change it doesn't seem to work