Firmware infos :

build date : Tue May 21 14:43:16 CST 2019
build id : OPM2.171019.012
build display id : I-life-K3500N-NST20190521
platform : sp7731e
product brand : I-life
product device : ITELL_K3500N
product manufacturer : I-life
product model : ITELL_K3500N 
os version : 8.1.0

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