newbie question:what's different between 101 and t1

g0y

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i'm a newbie,101=t1,201=t2 or it's different? and..i know pos only use track1,but do i need write random code?or just blank is ok.any good person can help me?thank u
 
Wrong on all sides.

A dump is composed from track 1 and 2. Track 2 is the important one, not t1.
And 101 and 201, among others, tell you if the card is with chip ( 201 ) or without, only with mag stripe ( 101 ).
 
101= card WITHOUT chip
201= card WITH chip
POS/ATM use ONLY track2
Track1= name of the cc holder+some code

Hope that will help!!
 
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thanks,it's very helpful
 
201 is very new and hardly if ever used.

To be safe always make out a t1 andt2. You will see when you have to sign the receipt that it has the name from track1 most the time.
 
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