Rockbox Technical Forums

Installation / Removal => Manual Installation => Sandisk - Installation/Removal => Topic started by: tshare on December 07, 2007, 09:30:50 AM

Title: c240 firmware rollback fails
Post by: tshare on December 07, 2007, 09:30:50 AM
Does anyone know why rolling back the firmware on c240 would fail?

I am trying to install Rockbox, but I cannot set the unit to MSC mode since the option is not available in Settings.  I followed the directions on the Rockbox c200 wiki to downgrade the firmware, but the firmware never changes. There are no errors, but upon restarting the c240 the system info shows the firmware unchanged and the uption to set USB to MSC is still not there.

I followed the following steps:
    * Power off
    * Turn ON lock/hold
    * Hold REC button and press MENU button (used to turn the player on/off)
    * Plug the player to the computer
    * I can see new drive 16MB-FORMAT
I copy the unzipped files into the 16mb drive, unplug the player, and release the hold switch. (Info gathered from here)

After that, the firmware is unchanged and I still cannot see an option to set the USB to MSC. I would appreciate any advice on how to overcome this problem.
Thanks,
Timothy

Title: Re: c240 firmware rollback fails
Post by: LambdaCalculus on December 07, 2007, 09:33:27 AM
What firmware version are you rolling back from, and what version do you want to roll back to?
Title: Re: c240 firmware rollback fails
Post by: tshare on December 07, 2007, 09:35:53 AM
The c240 System Info reports 01.01.05P. I followed the directions on the wiki to rollback to 1.01.00.
Title: Re: c240 firmware rollback fails
Post by: LambdaCalculus on December 07, 2007, 09:54:23 AM
I know this may sound silly, but did you download 1.01.00P, or perhaps did you grab another one by accident?
Title: Re: c240 firmware rollback fails
Post by: tshare on December 07, 2007, 09:58:40 AM
I downloaded     SansaC200A1_01_00.7z. The wiki specified "A" for American and I assumed mine was American. I don't know what the other version are for. Should I use     SansaC200P1_01_00.7z ?
Thanks,
Timothy
Title: Re: c240 firmware rollback fails
Post by: LambdaCalculus on December 07, 2007, 10:02:45 AM
Should I use SansaC200P1_01_00.7z ?
Thanks,
Timothy

Yes, that one should match your Sansa.

(Side note: My Sansa has OF version 1.01.00P, and I purchased it here in the States.)
Title: Re: c240 firmware rollback fails
Post by: tshare on December 07, 2007, 03:30:46 PM
That solved my problem. It would be useful to have some explanation of the different firmware versions available.
Thanks,
Timothy
Title: Re: c240 firmware rollback fails
Post by: LambdaCalculus on December 07, 2007, 03:34:54 PM
General rule of thumb: if a firmware has a suffix letter, stay with any firmwares that share it. Example: Update a Sansa with firmware 1.01.00P with another "P" firmware for the device.

Exception to the rule: Patching the iriver firmware to use Rockbox. There, you can't use a U.S. firmware, even if your device is from the U.S. ;)
Title: Re: c240 firmware rollback fails
Post by: MarcGuay on December 07, 2007, 03:45:39 PM
I updated the wiki to say "choose the letter version that matches your existing firmware".
Title: Re: c240 firmware rollback fails
Post by: LambdaCalculus on December 07, 2007, 03:53:31 PM
Thanks, Marc!
Title: Re: c240 firmware rollback fails
Post by: MarcGuay on December 07, 2007, 04:11:38 PM
Gotta plan for the future, you know? :)
Title: Re: c240 firmware rollback fails
Post by: nebcomp on January 09, 2008, 01:41:14 PM
I have been unable to downgrade my C240.  I followed the instructions to downgrade from 01.01.05P.  I copied SansaC200P1_01_00.7z to the 16MB-FORMAT "drive".  

The C240 screen indicates that the update is complete and that it is resetting the unit.  When I check settings, there is no "USB" setting and the firmware version still indicates 01.01.05P.  

Is there another trick?

Thanks.
Title: Re: c240 firmware rollback fails
Post by: MarcGuay on January 09, 2008, 01:51:17 PM
Files ending in .7z are archives like .zip and .rar, you need to extract the contents using software that's compatible.  Search the web.

To quote the wiki:

"To update the firmware, copy the unzipped files into the 16mb drive, unplug the player, and release the hold switch."

Can you think of a clearer way to explain that step?  (There is no sarcasm in my voice here, I'd actually like your opinion).
Title: Re: c240 firmware rollback fails
Post by: nebcomp on January 09, 2008, 02:15:38 PM
Thanks for the very quick and very patient reply!

I had a senior moment.  For some reason I read "unzipped" as keep it zipped!  I knew about 7z.

The downgrade worked fine.  Thanks, again.
Title: Re: c240 firmware rollback fails
Post by: MarcGuay on January 09, 2008, 02:25:22 PM
Nice.  Happy to helpies.
Title: Re: c240 firmware rollback fails
Post by: LambdaCalculus on January 17, 2008, 08:10:28 AM
The C200 port page on the wiki now has a link for people to download 7-Zip.
Title: Re: c240 firmware rollback fails
Post by: davea0288 on January 28, 2008, 12:31:52 AM
I was having EXTREME difficulting with these steps  until I realized that I was suppose to  take each of the 4 "unzipped files within the "SansaC200P1_01_00" folder and place them in the 16MB-FORMAT directory INDIVIDUALLY.  I was placing the zipped folder in the directory.  Everything executes as expected, but the firmware never get updated.  I even  pulled out my Windows XP machine to try it (same result with Vista or XP).  Now I can proceed with the ROCKbox upgrade !!!   Thanks for all your patient help in this thread.



Files ending in .7z are archives like .zip and .rar, you need to extract the contents using software that's compatible.  Search the web.

To quote the wiki:

"To update the firmware, copy the unzipped files into the 16mb drive, unplug the player, and release the hold switch."

Can you think of a clearer way to explain that step?  (There is no sarcasm in my voice here, I'd actually like your opinion).