Firmware infos:

build date               : Fri Aug  9 09:26:52 CST 2019
build description        : full_k80hd_bsp_fwv_512m-user 8.1.0 O11019 1565314027 release-keys
build id                 : O11019
build display id         : LP_N-57
fota version             : LP_N_57_V02_20190809
mediatek platform        : mt6580
product brand            : LP
product device           : LP_N_57
product manufacturer     : MobiWire
product model            : N-57
os version               : 8.1.0

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