Firmware infos :

 build date               : Sat Feb 25 11:33:31 CST 2017
 build description        : full_bd6735m_35g_a_m0-user 6.0 MRA58K 1487993112 dev-keys
 build id                 : MRA58K
 build display id         : ECHO_SMART_4G_V11
 mediatek platform        : MT6735
 mediatek version release : alps-mp-m0.mp1-V2.84_bd6737m.35g.a.m0
 mtk_patchversion         : ALPS-MP-M0.MP1-V2.84_BD6737M_65_A_M0_P18
 product brand            : ECHO
 product device           : ECHO_SMART_4G
 product manufacturer     : ECHO
 product model            : ECHO_SMART_4G
 os version               : 6.0

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