Index: /ar5315_microredboot/microredboot/ecos/packages/redboot/current/src/net/fwupgrade_senao.c
===================================================================
--- /ar5315_microredboot/microredboot/ecos/packages/redboot/current/src/net/fwupgrade_senao.c (revision 12371)
+++ /ar5315_microredboot/microredboot/ecos/packages/redboot/current/src/net/fwupgrade_senao.c (revision 12372)
@@ -79,5 +79,5 @@
 		unsigned int cfgsize = 0x20000;
 		unsigned int exec = 0x80041798;
-		if (maxlen==3670026) // detect 4M images (EAP3660 etc.)
+		if (maxlen==(3670026-10)) // detect 4M images (EAP3660 etc.)
 		    {
 		    filesyssize = 0x2f0000;