diff --git a/FlashGBX/FlashGBX.py b/FlashGBX/FlashGBX.py
index 4eb875b..07f0fa1 100644
--- a/FlashGBX/FlashGBX.py
+++ b/FlashGBX/FlashGBX.py
@@ -129,7 +129,7 @@ def main(portableMode=False):
 	ap_cli2.add_argument("--dmg-romsize", choices=["auto", "32kb", "64kb", "128kb", "256kb", "512kb", "1mb", "2mb", "4mb", "8mb", "16mb", "32mb"], type=str.lower, default="auto", help="set size of Game Boy cartridge ROM data")
 	ap_cli2.add_argument("--dmg-mbc", type=str.lower, default="auto", help="set memory bank controller type of Game Boy cartridge")
 	ap_cli2.add_argument("--dmg-savesize", choices=["auto", "4k", "16k", "64k", "256k", "512k", "1m", "eeprom2k", "eeprom4k", "tama5", "4m"], type=str.lower, default="auto", help="set size of Game Boy cartridge save data")
-	ap_cli2.add_argument("--agb-romsize", choices=["auto", "1mb", "2mb", "4mb", "8mb", "16mb", "32mb", "64mb", "128mb", "256mb"], type=str.lower, default="auto", help="set size of Game Boy Advance cartridge ROM data")
+	ap_cli2.add_argument("--agb-romsize", choices=["auto", "64kb", "128kb", "256kb", "512kb", "1mb", "2mb", "4mb", "8mb", "16mb", "32mb", "64mb", "128mb", "256mb"], type=str.lower, default="auto", help="set size of Game Boy Advance cartridge ROM data")
 	ap_cli2.add_argument("--agb-savetype", choices=["auto", "eeprom4k", "eeprom64k", "sram256k", "flash512k", "flash1m", "dacs8m", "sram512k", "sram1m"], type=str.lower, default="auto", help="set type of Game Boy Advance cartridge save data")
 	ap_cli2.add_argument("--store-rtc", action="store_true", help="store RTC register values if supported")
 	ap_cli2.add_argument("--ignore-bad-header", action="store_true", help="don’t stop if invalid data found in cartridge header data")
diff --git a/FlashGBX/FlashGBX_CLI.py b/FlashGBX/FlashGBX_CLI.py
index d59aa1e..96591c9 100644
--- a/FlashGBX/FlashGBX_CLI.py
+++ b/FlashGBX/FlashGBX_CLI.py
@@ -795,7 +795,7 @@ class FlashGBX_CLI():
 			if args.agb_romsize == "auto":
 				rom_size = header["rom_size"]
 			else:
-				sizes = [ "auto", "1mb", "2mb", "4mb", "8mb", "16mb", "32mb", "64mb", "128mb", "256mb" ]
+				sizes = [ "auto", "64kb", "128kb", "256kb", "512kb", "1mb", "2mb", "4mb", "8mb", "16mb", "32mb", "64mb", "128mb", "256mb" ]
 				rom_size = Util.AGB_Header_ROM_Sizes_Map[sizes.index(args.agb_romsize) - 1]
 
 			path = header["game_title"].strip().encode('ascii', 'ignore').decode('ascii')
diff --git a/FlashGBX/hw_GBxCartRW.py b/FlashGBX/hw_GBxCartRW.py
index e6dd917..2722445 100644
--- a/FlashGBX/hw_GBxCartRW.py
+++ b/FlashGBX/hw_GBxCartRW.py
@@ -17,7 +17,7 @@ class GbxDevice:
 	DEVICE_NAME = "GBxCart RW"
 	DEVICE_MIN_FW = 1
 	DEVICE_MAX_FW = 7
-	DEVICE_LATEST_FW_TS = { 5:1653902765, 6:1653902765 }
+	DEVICE_LATEST_FW_TS = { 4:1619427330, 5:1653902765, 6:1653902765 }
 	
 	DEVICE_CMD = {
 		"NULL":0x30,
diff --git a/FlashGBX/res/config.zip b/FlashGBX/res/config.zip
index d87f9f2..777d7db 100644
Binary files a/FlashGBX/res/config.zip and b/FlashGBX/res/config.zip differ