As mentioned, you need a galletto tool (ebay), and then need to short the boot pin, and use the galletto software to flash your file. You may also need to pull your aux fan fuse and instrument cluster fuse. It will write the entire flash, not just tables.
Also, make sure you do this with a battery charger connected and that you're seeing at least 13 volts at the battery terminal.
Something I have noticed recently is that parts stores like Checkers/Autozone are incorrectly selling conventional batteries for these cars, while most of these cars require deep cycle batteries. I contacted Autozone about this and they were extremely unreceptive and basically told me to go piss up a rope.
These batteries not only have a short service life because they are used in the wrong application and drained below the acceptable threshold, but they also don't provide enough voltage to flash on the battery alone, in most cases. A friend of mine sells name brand tunes, and he has had flash issues with nearly every car that had a cheap parts store conventional battery which then led to a bricked ECU and required a bench flash in boot mode.
Something to consider anyway, in case this may be the reason you bricked the ECU
