Mazda 5 anti theft no start

I have a Mazda 5 2008. Transmission Bolt it goes to the mount broke and then fell on top of my CV axle and broke I had a friend do the repairs and now that they’re done my Anti-Theft light is blinking and my vehicle will not start I have power but no crank no start I have disconnected and reconnected my battery I went over every fuse and wire is there anybody that could help I’m up for any options any ideas please and thank you

Friend may have disconnected the negative post of the battery, which is wise when doing many repairs on a car. The antitheft system may need some kind of reset now that the battery is reconnected. See instructions for the antitheft system, maybe on line. Good luck and please keep us informed.