Hi.
What version does your tablet have?
Mine has:
Do you know these links?
[Official Version] Chuwi Hi9 Pro Bios - only for the red power button
- Chuwi Hi9 Pro
Android:
Hi9 Pro Android Firmware download: (before serial number 201901 )
http://www.mediafire.com/file/69sbx7m7f0ghxb1/CHUWI_Hi9Pro_3%2B32_20181115_ota��
%9E%E5%8A%A0TP%E8%B7%9D%E7%A6%BB%E6%84%9F%E5%BA%94.rar/file
Hi9 Pro Android Firmware download: ( after serial number 201901
)http://www.mediafire.com/file/4eoxu94kb5e07e5/HI9PRO_20190105_o_OGS.rar/file
Flashtool:
Latest Hi9 Pro Flash Tool download:
https://chuwiinnovationtechnologyshenz.box.com/s/uc4io3in2piotpnt37qiesor5nohytak
Driver:
Chuwi Hi9Pro Dualboot driver_32/64 bit download:
https://chuwiinnovationtechnologyshenz.box.com/s/gz9wr1aqksu2tx4czvefx5ajs722f5p7