Okay, that's wrong technically, the disk starts on sector 0 so subtract one

diff --git a/source/patch/emunand.c b/source/patch/emunand.c
index 75aed8bda842ae83d3d0b34c2b07cbbadf8a1fbf..65601f1cd80f7c9687619e25e621ddb126b060d2 100644 (file)
--- a/source/patch/emunand.c
+++ b/source/patch/emunand.c
@@ -46,7 +46,7 @@ verify_emunand(uint32_t index, uint32_t *off, uint32_t *head)
 
     if (config.options[OPTION_EMUNAND_REVERSE]) {
         // Subtract offset from back of disk.
-        offset = getMMCDevice(1)->total_size - offset;
+        offset = ( getMMCDevice(1)->total_size - 1) - offset;
     }
 
     // Check for RedNAND/Normal physical layout on SD