help with frf

[smokin66]

looking for a little help if possible,i replaced ecu on golf 1.6 now running ok,so i want to update frf with odis but understand ecu will be locked afterwards.i have good stage 1 from old original ecu ,and when i write onto donor ecu car not start because of immo change.
so question is could someone copy my stage 1 and save it as frf so i can load with odis and not worry about immobiliser or locking ecu again?
is this possible thanks for your help guys

thanks and rep as always