V70 I does not start after ignition lock exchange

For a year I’ve been driving my moose with a screwdriver, ignition lock was only turned until the steering wheel lock was unlocked. Used lock acquired – today built in. Now the moose will not know the transponder in the new key, so I’ll hang the transponder coil, put the old key in there and try to start with the new key in the lock. Don’t jump on. Can I make the new key known with the system without OBD? Why will the old Tr ansponder no longer accepted at the antenna ring? Is the “Battery disconnect, door open, door close, three times close method” after Esker (found here) an option to solve my problem? I have a low cost OBD2 – USB interface for my notebook, but without any software. Does this help me somehow? Thank you in advance.