As a frequent (even crazily frequent) ground zero autoloader of the BB10 latest available OS into both a Z10 and a PP, I've got used to incorporating Playbook App Manager into Chrome, managing device settings accordingly, and thereby side-loading AppWorld (and, as it happens Flash Browser). I must have done this a score of times or more. But always on a STL100-4 Z10. Today I started up a STL100-2 Z10 and could not get the procedure to work. App Manager within Chrome repeatedly hesitated/ looped as it tried and re-tried to engage with the phone. Has anybody else had this experience?