Problem after unlock procedure

[kosmickid]

hi peeps, i have put my o2 xda2 back into service and used the excellent unlock giude from this forum (itsme' guide) and unlocked my phone to try and use with a t-mobile sim.

Having run the v.1.6 on it, when i put my t-mobile sim card in the phone i get the t-mobile logo and 4 bars of reception however it wont allow to me to make/receive calls or sms etc any ideas on how to fix this or what the problem maybe?

thanks in advance

[mattdehat]

it sounds like tmobile sim is old.try sim in different phone and see if it has same problem.if so a new sim should cure it