Mine

Index: firmware/target/arm/sandisk/sansa-e200/power-e200.c
===================================================================
--- firmware/target/arm/sandisk/sansa-e200/power-e200.c	(revision 12165)
+++ firmware/target/arm/sandisk/sansa-e200/power-e200.c	(working copy)
@@ -27,7 +27,10 @@
 
 void power_off(void)
 {
-    pp_i2c_send(0x46, 0x20, 0x20);
+    char byte;
+    byte = i2c_readbyte(0x46, 0x20);
+    byte &= ~0x1;   
+    pp_i2c_send(0x46, 0x20, byte);
 }
 
 bool charger_inserted(void)