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.
Correction: The server may have been "alarmed" in a different sense to alarms screaming - the laptop got "pulsed", which could have been a part of the alarm response, plus, the negative noise gadgets Marshall gave them would have cancelled any audible alarm that may have been going off - hence why no-one ran in when the alarm sounded.
Corrected entry: In the first season of the show, when we see footage of Irina Derevko being interrogated, she has a strong Russian accent. However, when Sydney actually meets her in season 2, she speaks with no accent at all.
Corrected entry: While in Denpasar, Indonesia, they should be speaking Bahasa Indonesia but instead they are speaking in Bahasa Malaysia (the national language of Malaysia-which happens to be a neighbouring country).
Correction: Bahasa Malaysia and Bahasa Indonesia are very similar languages with the difference being in pronunciation. Sydney was speaking Bahasa Indonesia but with poor pronunciation.
The Telling - S2-E22
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.
Correction: She probably was given the opportunity to shower and change by her handler. Just because we didn't see doesn't mean it didn't happen.
Correction: There are 4 beeps because Sydney needs to enter the code, (3 digits) then hit "ok" or "enter".