Originally Posted by
WilcoRoger
Providing you're EU citizen (or have otherwise no Schengen related immigration issues, like visa, etc) you may just walk back to the non-Schengen area. If you have a biometric passport, you won't even see a border guard (and anyway they check only passports, not b/p's afaik)
If OP is arriving from Beijing, why should he/she exit the non-Schengen area in the first place? It is possible just to go straight to AY non-Schengen lounge and not to proceed to Schengen side until the GOT flight is departing...