Download Android Jelly Bean 4.2.2 Stock Firmware for Vido N90 FHD / YuanDao N90 IPS tablet from here or here. Download another Vido / YuanDao firmwares from here.
Update file name: N90_IPS-4.2_20140531-AZ
Archive size: 262 MB
Model: Vido N90 FHD / YuanDao N90 IPS tablet AZ model
Platform: Rockchip RK3188
Model: Vido N90 FHD / YuanDao N90 IPS tablet AZ model
Platform: Rockchip RK3188
FW version: 4.1.01
Boot version: 1.24
Boot version: 1.24