Firmware infos :

 Build ID: KOT49H
  Display ID: Q77-G-tab-8GB-20170831
  Version: 4.4.2
  Build Date: Tue Jul 11 19:22:45 CST 2017
  Model: Q77
  Brand: G-tab
  Device: Q77
  Manufacturer: G-tab
  Region: US
  Mediatek Version Release: KT07C.3G-20151008

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