For example, 1920 in decimal notation is 0780 in hexadecimal notation, which is 8007 with the bytes reversed. Each byte is two hexadecimal characters, so you want to make sure that you're not entering the hexidecimal string backwards but are instead separating it into bytes (2 character chunks) and then reversing the byte order (the reversal has to do with the order data is stored in and read from memory, which is called endianness).
7.2 Stuttering or Freezing after combat / Unable to move the character.