diff --git a/FlashGBX/config/fc_DMG_ChisFlash-MBC5-MAX_28EW256A.txt b/FlashGBX/config/fc_DMG_ChisFlash-MBC5-MAX_28EW256A.txt
new file mode 100644
index 00000000..d85806dc
--- /dev/null
+++ b/FlashGBX/config/fc_DMG_ChisFlash-MBC5-MAX_28EW256A.txt
@@ -0,0 +1,95 @@
+{
+	"type":"DMG",
+	"names":[
+		"ChisMBC5 MAX(32 MiB)(28EW256A)"
+	],
+	"flash_ids":[
+		[ 0x89, 0x89, 0x7E, 0x7E ]
+	],
+	"voltage":3.3,
+	"voltage_variants":true,
+	"flash_size":0x2000000,
+	"buffer_size":0x100,
+	"start_addr":0,
+	"first_bank":0,
+	"write_pin":"WR",
+	"sector_size":0x20000,
+	"chip_erase_timeout":120,
+	"mbc":"manual",
+	"command_set":"AMD",
+	"commands":{
+		"reset":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0x0, 0xF0 ]
+		],
+		"read_identifier":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x90 ]
+		],
+		"read_cfi":[
+			[ 0xAAA, 0x98 ]
+		],
+		"sector_erase":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x80 ],
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ "SA", 0x30 ]
+		],
+		"sector_erase_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ "SA", 0xFF, 0xFF ]
+		],
+		"chip_erase":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x80 ],
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x10 ]
+		],
+		"chip_erase_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ 0, 0xFF, 0xFF ]
+		],
+		"buffer_write":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ "SA", 0x25 ],
+			[ "SA", "BS-1" ],
+			[ "PA", "PD" ],
+			[ "SA", 0x29 ]
+		],
+		"buffer_write_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ "SA", "PD", 0xFF ]
+		],
+		"single_write":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0xA0 ],
+			[ "PA", "PD" ]
+		],
+		"single_write_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ]
+		]
+	}
+}
diff --git a/FlashGBX/config/fc_DMG_ChisFlash-MBC5-MAX_S29GL256N.txt b/FlashGBX/config/fc_DMG_ChisFlash-MBC5-MAX_S29GL256N.txt
new file mode 100644
index 00000000..e9a9a118
--- /dev/null
+++ b/FlashGBX/config/fc_DMG_ChisFlash-MBC5-MAX_S29GL256N.txt
@@ -0,0 +1,93 @@
+{
+	"type":"DMG",
+	"names":[
+		"ChisMBC5 MAX(32 MiB)(S29GL256N)"
+	],
+	"flash_ids":[
+		[ 0x01, 0x01, 0x7E, 0x7E ]
+	],
+	"voltage":3.3,
+	"voltage_variants":true,
+	"flash_size":0x2000000,
+	"buffer_size":0x20,
+	"start_addr":0,
+	"first_bank":0,
+	"write_pin":"WR",
+	"sector_size":0x20000,
+	"chip_erase_timeout":120,
+	"mbc":"manual",
+	"command_set":"AMD",
+	"commands":{
+		"reset":[
+			[ 0x0, 0xF0 ]
+		],
+		"read_identifier":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x90 ]
+		],
+		"read_cfi":[
+			[ 0xAAA, 0x98 ]
+		],
+		"sector_erase":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x80 ],
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ "SA", 0x30 ]
+		],
+		"sector_erase_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ "SA", 0xFF, 0xFF ]
+		],
+		"chip_erase":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x80 ],
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0x10 ]
+		],
+		"chip_erase_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ 0, 0xFF, 0xFF ]
+		],
+		"buffer_write":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ "SA", 0x25 ],
+			[ "SA", "BS" ],
+			[ "PA", "PD" ],
+			[ "SA", 0x29 ]
+		],
+		"buffer_write_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ "SA", "PD", 0xFF ]
+		],
+		"single_write":[
+			[ 0xAAA, 0xAA ],
+			[ 0x555, 0x55 ],
+			[ 0xAAA, 0xA0 ],
+			[ "PA", "PD" ]
+		],
+		"single_write_wait_for":[
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ],
+			[ null, null, null ]
+		]
+	}
+}