Programming a new key chip Help!

#1
Hi Guys,
I'm new here and I would like to know if inserting a new ignition barrel and key, I would, of course, need to program the new key chip as my old chip has broken. I have read that if you insert the key in the ignition at 3 times at 10½ minutes to position 3 and back to position 1 total 31½ minutes, that you are able to program a new T5 chip. Is this info correct, or would I have to have the chip programmed via a locksmith shop.

I have yet to remove the old barrel as it's stuck on 0 and I need to be able to turn the key to 1, no luck as yet. I have tried every method. If I have to remove the barrel via banging in a screwdriver and twisting it to position 1 or would it be better to drill it out or even both.
Thanks for any help!

Opel Vectra B - 2.0i 16v - 1996
 
#3
Thanks Vocky for the info. I thought I could save some money in trying to program the chip myself in some way. I have read some stories on YouTube on how to DIY, there must be some truth in it somewhere?
 
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