Timing files without the mysticism
A timing file is a set of parameters for the glitch attempt. It is not incense. If a Corona hunts for twenty seconds, I check solder, POST, and power first. Swapping files is step four, because step one is usually a cold joint that looks fine from three feet away. RGH3 still has board-specific realities. RGH1.2 chips still need decent wiring. PicoFlasher cannot time a glitch for you.
Measure, then change one thing
Cold boots from the wall. Three cycles. Write down the times. If they wander, you do not have a “bad file.” You have an unstable install. If they are consistently slow, then talk about a different timing. Changing the file and the wiring in the same breath teaches you nothing.
POST is a language
Learn the codes for the board you are on. Guessing from a Phat chart while you are on Corona is how myths get extra lives. I am not reprinting tables here; they go stale. If XeLL never appears, you do not have a KV problem. Finish the glitch. If XeLL is up and Live is still the complaint, that is a KV/rebuild ticket — we kept a KV unban / swap guide on the shop PC next to J-Runner so it did not get solved with more solder.