Corrected entry: In the episode 'Trust Me', Syd goes to see her mother at the F.B.I. holding area. Vaughn tells Syd to memorize a series of 3 digit codes to enter into the phone if it rings. In the next episode, 'Cipher', Sidney enters 4 digits. You can hear the beeps as she enters them.
Corrected entry: When taking information from the server, they're warned not to touch it as it's alarmed, so they have to use a wireless connection. However, when the rope supporting Sydney gives way, she reaches out and holds herself up on the server for a split second before the shot cuts and she's hauled to safety, but nothing happens.
Corrected entry: In the episode "The Telling" Syd wakes up in Hong Kong. When we first see her she is wearing a turtleneck sweater. When she is in the safehouse with Vaughn, the sweater no longer has a turtleneck, it is more scoop-necked. She did not have any clothes to change into, nor was she given any.