lair of pests jammed my way.
recently PRC surveillance can't afford their failure to block my shopping online at PRC largest e-commercial, taobao.com, and locked my mobile with relentless lockscreen after my successful operation on it. that alerted me with new OS to replace wrecked one. so I upgrade our 3 new Android devices with Android 9 and joyful on new platform. God, dad, road under our feet prevailing and thief-proof, isn't it?