Battery problem in c200

[BunnyCuddles]

NOTE: This may be in the wrong section.

After a  few minutes of using my sansa, it turns off.
I have trouble opening the back cover, to take my battery out.
When I finally got it open, I noticed it was different to the other one my sister has.
(I won the two in a drawing comp. One for my sister and one for me.)
I'm wondering how to fix it, and open the back cover without using a screwdriver.
Does this have anything to do with ROCKBOX?

...Long message

[soap]

NOTE: This may be in the wrong section.

After a  few minutes of using my sansa, it turns off.

Does the same thing happen with the Sandisk original firmware?

I have trouble opening the back cover, to take my battery out.
When I finally got it open, I noticed it was different to the other one my sister has.
(I won the two in a drawing comp. One for my sister and one for me.)
I'm wondering how to fix it, and open the back cover without using a screwdriver.

If the problem is also in the Sandisk original firmware you fix it by replacing the battery.
As for how to remove screws without a screwdriver...

[BunnyCuddles]

First of all, the back cover is supposed to come off without a screwdriver.

Secondly, it didn't happen in the Sansa firmware.
I got the lastest build, and amazingly, no battery problem.

[pixelma]

There are definitely no screws that hold the back cover on a C-200, you can get the battery out without a screwdriver. You would only need one if you want to open the player further. But the back cover often sits very tightly and I even found a description at a sandisk forum of how to hold the player and place your thumbs best if you want to take the back cover off...

[soap]

There are definitely no screws that hold the back cover on a C-200,

touché

[BunnyCuddles]

My other c200's back cover is easy to pull off.
 

[Strife89]

It was either assembled loosely (it happens) or its worn a little from any sliding on and off that may have occured.