One more question, especially to sashz and ThC. Where the U-BOOT is stored? I know it replaces standard Sharp bootloader, and for now I suppose it's stored in some part of NAND. It would be very good NOT to have it on C3000's 16 Mb chip, because this chip itself can become damaged (you know these NAND things
I'm going to try to replace this chip with 128 Mb one, and all I need to know now is:
Do I have any chance to do it after installation of U-BOOT and by its means? With original Sharp bootloader, as reported several testers before - no luck, it doesn't recognize empty (actually FAT16/32 formatted) NAND chip, though it DOES support this chip itself, and refuses to do anything with it, including NAND restoration.
If the answer is "yes", I'll get my hands around my hot air blower
in minutes. If no...well, it must be other way, maybe with serial cable or alike, to perform such a replacement. Sharp technicians DO know such a way, as they replace broken NAND chips on Z's.
P.S. IC programmers DON'T work with NAND.