Sandisk Sansa C100
- LCD driver is functioning
- Button driver is functioning
USB Boot Mode/Recovery Mode
Hold select/center button on USB connect.
Production Test Mode
Holding the lower-volume (the leftward one) button, the "options"/bottom of circle button, and pressing menu for several seconds will enable a production test mode which can be used to test the various parts of the player. It seems to me that all of the basic information we need is available in this application (button triggers, LCD info, etc). The strings used by this mode can be found in the player.rom hex file.
- Sansa c140/c150 Updater. American firmware updater to v188.8.131.52a. Does not work if the player already has a v2 firmware on it.
- American firmware v2.0.008A.
To upgrade the firmware, the file player.rom needs to be copied to the root of the device. Upon reboot, the user is prompted to upgrade. If yes is selected, the firmware is upgraded and the file deleted from the FAT partition. A reboot is required to actually start the new firmware - the existing version will continue to run. Based on the observation that the existing firmware continues to run after a firmware update, it would seem that the firmware itself is executing from RAM, rather than executing in place from a ROM.
You can safely upload to and execute code from RAM using tcctool (pre-built Windows binary here: http://download.rockbox.org/utils/tcctool/
) - - Default
) - 0x1 - USB Plug
) - 0x2 - Hold Switch
1111000000000100 (F004) - ! 0x8 - Volume Up/Down & A-B Repeat/Down Button
1111000000001000 (F008) - ! 0x4 - Left/Up/Right Directions
) - 0x80 - Select
) - 0x100 - Power/Menu
v1 (NAND Interface)
Larger images: | Front with LCD flipped away
| Memory Chip
v2 (SD Interface)
Larger images: | Front
| Memory Board 1
| Memory Board 2
Similar devices: LogikDaxPort
: Sandisk Sansa c100 Port Index [New Ports]
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