Bad Jump, inverter board,fusible link, fuses all replaced what else

Hi all,
Symptom: Headlights steady on in spite of switch (0ff) and nothing else worked.
Thanks for all the prior assistance gotten from this site. Have 2009 std option #2. Either bad jump or cables touched. Headlights steady on and nothing else as reported elsewhere. Looked here. I replaced the 100 amp fusible link in the engine compartment along with fuse 14 and 17 and 5 amp in poistive terminal connector. Still had triangle and battery & exclamation on car on mfd. Have techstream, pulled P090A0. Read post suggesting that replacement of inverter board alone would fix. Went back to yard and pulled board and installed until 2am. Fired up and no joy still had triangle and lights. Went to sleep. Have another similiar prius and went out today to start swapping components i.e. whole inverter until solved. Fired up to clear codes with Techstream as starting point and no codes other than ac sunlight code(ignorable) came up. Moral: DON'T PANIC after inverter board install. Shut down and restart several times. Codes might clear on their own.
Never had to use techstrem to clear. Although invaluable in intial diagnosis. Posting this primarily for others with problem.