The Chinese player only won one victory this season in the tournament ranking against Malta, Duncan Bezzina, in the first round Paul Hunter Classic in August, suffering the first seven rounds in the morale sent sequences of failures.
WATCH SNOOKER LIVE FOR EUROSPORT AND EUROSPORT GAMERS
But despite the failure of a 50-minute break in the fight with Hawkins at the Waterfront Hall, he managed somehow to win the final in the final of the former World Cup finalist, who looked slightly stunned after the upheavals in 99, 92 and 92 80.
Sixth World Hawkins lost 9-8 with Mark King in the final of this event two years ago, but it was a much bigger shock against the 26-year-old Zen who also got angry Shaun Murphy in the first round in Belfast a year ago.
The next shocking loser was Scottish Anthony McGillwho watched the opponent Alexander Ursenbacher collect the highest knock of 55, losing 4-0.
2004 champion in the UK Stephen Maguire it is also outside. He went 4-2 into the world 45 Michael Holt, who made routes 92 and 52 to secure his seat in the last 64.
But there were no such problems in defense of the world champion and master Mark Williamswho produced the dominant 4-2 victory over word 88 Alfie Burdenwho squandered a few chances among the balls.
Williams noticed that Burden was returning parity to 1-1, and breaks 91, 69 and 91 led him to the last 64 meetings and eventual meeting Ali Carter, who beat 13-8 in the last eight on the road to winning the championship in May.