The Android partition can only be 2GB, so you need to create a FAT partition that is so large there will only be 2GB left. The number must be in MB, example some recommended sizes are 1, 100, 2100, 6100, 14100, 30100. If its 8GB you can choose a number like 6100MB, if its 4GB you can choose a number like 2100MB. If your memory card is 2GB or below, you can choose 1MB as a number If you do not do this correctly you will not be able to use Android Market!