White was forced to fightback from 4-2 down to beat Andrew Pagett 5-4 during the qualifying tournament in Leicester.
The ten-time ranking event winner struggled for results on the tour last season, with Sunday's victory marking his first win since last August's British Open.
That, however, does not include the World Senior Championship, which was won by White for a record third time last May.
The 60-year-old was staring down the barrel of a defeat this weekend, with Pagett needing just one frame to seal the win.
Despite this, the Whirlwind never threw in the towel and rallied with breaks of 58 and 133 on his way to a sensational victory.
Elsewhere, four-time world champion John Higgins bowed out of the competition following a 5-3 defeat to Scott Donaldson. The Perth-based player produced breaks of 51, 52 and 60 on his way to European Masters qualification.
Belgium's Luca Brecel, on the other hand, blitzed Andy Lee aside as he secured his ticket to Furth with a 5-1 demolition.
Aaron Hill also progressed as he top scored with a break of 103 during his 5-1 defeat of Chen Zifan.
Graeme Dott, in contrast, put on a masterclass in a 5-0 whitewash over Thepchaiya Un-Nooh.