To add to Henrik's remarks. A PicKit2 will do the same job and the USB supply can come from either a USB "brick" or a USB power bank.
So you DON'T want to use either a computer, SPI or RS-232, is that correct? Or do you mean that you DO want to use SPI or RS-232 just NOT from a computer?
This isn't actually bootloading but the...
I searched the forums and found a little bit of information but nothing that fits exactly what I need. Is there a way to load a hex file into an 18F without the use of a computer using SPI or RS-232?...Christopher4187 Today, 02:13