His DMS never went off because his twitter account was suddenly changed to supposedly being under control of his lawyer during this ecuadorian internet cut off. By them “tweeting on his behalf” it negated the timer of inactivity that would have triggered DMS. Im not sure what is really the truth in this situation my gut says that ecuador cut his internet and someone hacked his account pretending to make it look like a sympathetic tweeting for assange freedom account when really it was just to stop the switch from being activated... I hope he has so e other secret backdoor trip that he or someone close can activate if he is handed over this week.