Hi,
Thanks for your reply. I thought about the charging circuit. I have 4 batteries (I have a SL-5500 as well and the external charger, I just have to remember where I put it). I understand how the Li battery charging system works harware-wise (+and - terminals, and the 3rd temperature sensor terminal to control charge rate...I'm an EE who's still learning Linux and this little PDA). I understand that without a functional battery and charger, the system won't boot. It does boot... but only to the command prompt via the D+B key sequence. I'm assuming if the charging system was hosed, I wouldn't be able to do the D+B boot to the command line. I could be wrong about that.
The my wall wart is functional, and it appears that the batteries are charging properly in the C700. When I left work yesterday, I put a different EA-BL06 battery in the PDA and plugged the charger in. The light came on, indicating it was charging. I came in this morning and the light was off. I then pulled the battery and left the PDA off, open, with the battery out for a few hours. I'm going to try the sequence again.
The thing is, I can do the boot to command prompt (battery switch to lock, while holding the D+B keys down). I can "LS" around the file system. The cards aren't mounted, but their mount references are their.
I keep trying the sequence, with the same results (isn't that one sure sign of insanity, doing the same thing over and over expecting different results??). Maybe my first battery was getting weak, affecting the flash restore process. Maybe I have a flaky CF card that's corrupting the NAND or Recovery files. I may try the recovery or NAND from SD (I can't remeber if I can even do it with an SD versus a CF card). I have reformatted the CF card to FAT16 twice.
I still end up with every diagnostic passing, exept the PRESET block checksum. No bad blocks, all read/write sequences pass. But, NO japanese Flash Menu.
I'm wondering if there is a manual, external, command promp way to do the ROM flash so I can bypass the flash menu.
Do you know if the sequence is important on the NAND Flash REstore versus the "Recovery" (C + D + battery lock and read the 9 files off the CF card)? I was assuming the NAND Flash Restore was a deeper, more fundamental change over the "recovery" process. I tried the sequence both ways, made no difference.
Any more suggestions? I'm afraid of "wearing out" my flash RAM by the repeated erase/restore/erase etc. Is this a valid concern for the memory on this PDA? I've not researched it enough to know for sure.
Stuart
(still not giving up)
