Dear Friends,
Emergency system is running, but I can't continue in upgrade process, I guess that emergency system does not detect my SD card. (512 MB)
Are you upgrading a "working" pdaxrom setup, or are you flashing a completely new one?
You may need to try another card, sometimes SD cards can have problems unrelated to the flash process.
If you are starting from "another" distro, (or this is a "new" flash), read below:
Make sure that you the SD card is formatted to FAT 16 (I always flashed using a CF card, and it is always recommended to have the card formatted as FAT 16)
Otherwise I cannot tell you much more, except to be sure you have selected the correct ROM (pdaxrom) image for your hardware.
And make sure that you follow the instructions for your pdaxrom version.
Make sure that the file names are correct according to the instructions that you are using. The files need to be in the root directory of the card.
Some files need to be renamed. Follow instructions carefully...