ingles-Computer-2:~/desktop kripahada$ sudo ./e200tool-mac recover pribootLoader.rom
Password:
sudo: ./e200tool-mac: command not found
ingles-Computer-2:~/desktop kripahada$ sudo ./e200tool-mac recover pribootLoader.rom
sudo: ./e200tool-mac: command not found
ingles-Computer-2:~/desktop kripahada$ sudo ./e200tool-mac recover pribootLoader.rom
sudo: ./e200tool-mac: command not found
ingles-Computer-2:~/desktop kripahada$ chmod +x e200tool-mac
ingles-Computer-2:~/desktop kripahada$ sudo ./e200tool-mac recover pribootLoader.rom
e200tool v0.2.3-alpha (c) by MrH 2006, 2007
Searching for device 0781:0720 ... found!
Initializing USB stub (4780 bytes) ... 
Length write error (-1, Operation not permitted)
ingles-Computer-2:~/desktop kripahada$ sudo ./e200tool-mac recover pribootLoader.rom
e200tool v0.2.3-alpha (c) by MrH 2006, 2007
Searching for device 0781:0720 ... found!
Initializing USB stub (4780 bytes) ... 
Length write error (-1, Operation not permitted)
ingles-Computer-2:~/desktop kripahada$ 




















ingles-Computer-2:~/desktop kripahada$ sudo ./c250repair-mac
Password:
e200rpatcher v0.2 - (C) 2007 Jonathan Gordon & Dave Chapman
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Attach your E200R in "manufacturing mode" as follows:
   1) Power-off your E200R
   2) Turn ON the lock/hold switch
   3) Press and hold the SELECT button and whilst it is held down,
      attach your E200R to your computer via USB
   4) After attaching to USB, keep the SELECT button held for 10 seconds.

NOTE: If your E200R starts in the normal Sansa firmware, you have
      failed to enter manufacturing mode and should try again at step 1).

[INFO] Press Enter to continue:
[INFO] Searching for E200R
[INFO] Found E200R, uploading patching application.
[ERR]  Error writing data length
[ERR]  Bulk write error (-1, Operation not permitted)
[ERR]  Upload of application failed.
[INFO] Press ENTER to exit: 












Hi its me again. 

Thank you very much for your help on Sunday. It really worked. However, I ran into problems again. I tried to sync the Sandisk sansa c250 with a Windows Media player and after rebooting it starting acting weird and it said there were no songs in it. the empty space in settings in the player display showed some enormous number in MB. 

Today, it is acting even worse. It shows the boot screen and then that's it. 

Recovery mode seems to be working because when I lock the "hold" switch, hold the record button, and press the power button, the boot image comes up (which says Sansa and shows the picture of a reptile) and there is a prompt that says "Please connect USB". So then, I turn the lock "hold" switch to the white part to turn hold off and then i connect it to the USB with the computer. Then the prompt says 

Mini-B->Device Mode 
USB2.0 MSD 
LUN0 locked 

When I open disk utility on the computer (Mac OS X, 10.4.11), it shows up the 16 MB unformatted partition, detailed information is as follows: 


Name : 	SanDisk Sansa C200 Media
	Type : 	Disk

	Disk Identifier : 	disk1
	Media Name : 	SanDisk Sansa C200 Media
	Media Type : 	Generic
	Connection Bus : 	USB
	Connection Type : 	External
	Device Tree : 	IODeviceTree:/PCI0@0/USB7@1D,7
	Writable : 	Yes
	Ejectable : 	Yes
	Mac OS 9 Drivers Installed : 	No
	Location : 	External
	Total Capacity : 	16.0 MB (16,777,728 Bytes)
	S.M.A.R.T. Status : 	Not Supported
	Disk Number : 	1
	Partition Number : 	0

Please help me with repairing the player.