Firmware infos:

MQ8A-MB-V3.2
build date : Wed May 10 15:24:09 CST 2017
build id : JDQ39
build display id : ALPS.JB3.MP.V1.12
custom build version : M706_EMMC_3G_En_V001.3.0
platform : MT6572
product brand : alps
product device : m72_emmc_s6_pcb22_to1024_ddr1
product manufacturer : alps
product model : m72_emmc_s6_pcb22_to1024_ddr1
os version : 4.4.2

Download: