I was writing a boot patch that stopped mid way and now I can’t write the boot patch and car won’t start > Q&A

I was writing a boot patch on my Genesis g70 and it stopped mid way and said there is no response from the vehicle and it stopped then I tried writing it again and it said it has already been patched so I wrote the tune next and that was successful but now my car doesn’t start anymore please help what do I do now I tried flashing it back to stock and it said there’s no response from the vehicle again