Download Android KitKat 4.4.2 Stock Firmware for Vido M87 / YuanDao M87 tablet from here or here. Download Vido / YuanDao firmwares from here.
Update file name: M87-4.4-20140721固件+工具+操作指导
Archive size: 529 MB
Firmware: M87-4.4-20140721-ZZ.V3.07
Model: Vido M87 / YuanDao M87 tablet ZZ model
Firmware: M87-4.4-20140721-ZZ.V3.07
Model: Vido M87 / YuanDao M87 tablet ZZ model
config_version: V1.1.2
Platform: Mediatek MT6592
Project: hv1a_715_yd_m87
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