diff --git a/Marlin/Gen7/boards.txt b/Marlin/Gen7/boards.txt
index f8c826a09f..d6fbaeeb95 100644
--- a/Marlin/Gen7/boards.txt
+++ b/Marlin/Gen7/boards.txt
@@ -5,8 +5,8 @@ Gen7-644-16.upload.protocol=stk500v2
 Gen7-644-16.upload.maximum_size=63488
 Gen7-644-16.upload.speed=115200
 Gen7-644-16.bootloader.low_fuses=0xF7
-Gen7-644-16.bootloader.high_fuses=0xDC
-Gen7-644-16.bootloader.extended_fuses=0xFC
+Gen7-644-16.bootloader.high_fuses=0xD4
+Gen7-644-16.bootloader.extended_fuses=0xFD
 Gen7-644-16.bootloader.path=Gen7
 Gen7-644-16.bootloader.file=bootloader-644-16MHz.hex
 Gen7-644-16.bootloader.unlock_bits=0x3F
@@ -22,8 +22,8 @@ Gen7-644-20.upload.protocol=stk500v2
 Gen7-644-20.upload.maximum_size=63488
 Gen7-644-20.upload.speed=115200
 Gen7-644-20.bootloader.low_fuses=0xF7
-Gen7-644-20.bootloader.high_fuses=0xDC
-Gen7-644-20.bootloader.extended_fuses=0xFC
+Gen7-644-20.bootloader.high_fuses=0xD4
+Gen7-644-20.bootloader.extended_fuses=0xFD
 Gen7-644-20.bootloader.path=Gen7
 Gen7-644-20.bootloader.file=bootloader-644-20MHz.hex
 Gen7-644-20.bootloader.unlock_bits=0x3F
@@ -39,8 +39,8 @@ Gen7-644P-16.upload.protocol=stk500v2
 Gen7-644P-16.upload.maximum_size=63488
 Gen7-644P-16.upload.speed=115200
 Gen7-644P-16.bootloader.low_fuses=0xF7
-Gen7-644P-16.bootloader.high_fuses=0xDC
-Gen7-644P-16.bootloader.extended_fuses=0xFC
+Gen7-644P-16.bootloader.high_fuses=0xD4
+Gen7-644P-16.bootloader.extended_fuses=0xFD
 Gen7-644P-16.bootloader.path=Gen7
 Gen7-644P-16.bootloader.file=bootloader-644P-16MHz.hex
 Gen7-644P-16.bootloader.unlock_bits=0x3F
@@ -56,8 +56,8 @@ Gen7-644P-20.upload.protocol=stk500v2
 Gen7-644P-20.upload.maximum_size=63488
 Gen7-644P-20.upload.speed=115200
 Gen7-644P-20.bootloader.low_fuses=0xF7
-Gen7-644P-20.bootloader.high_fuses=0xDC
-Gen7-644P-20.bootloader.extended_fuses=0xFC
+Gen7-644P-20.bootloader.high_fuses=0xD4
+Gen7-644P-20.bootloader.extended_fuses=0xFD
 Gen7-644P-20.bootloader.path=Gen7
 Gen7-644P-20.bootloader.file=bootloader-644P-20MHz.hex
 Gen7-644P-20.bootloader.unlock_bits=0x3F
@@ -74,7 +74,7 @@ Gen7-1284p-16.upload.maximum_size=129024
 Gen7-1284p-16.upload.speed=115200
 Gen7-1284p-16.bootloader.low_fuses=0xF7
 Gen7-1284p-16.bootloader.high_fuses=0xD4
-Gen7-1284p-16.bootloader.extended_fuses=0x05
+Gen7-1284p-16.bootloader.extended_fuses=0xFD
 Gen7-1284p-16.bootloader.path=Gen7
 Gen7-1284p-16.bootloader.file=bootloader-1284P-16MHz.hex
 Gen7-1284p-16.bootloader.unlock_bits=0x3F
@@ -91,7 +91,7 @@ Gen7-1284p-20.upload.maximum_size=129024
 Gen7-1284p-20.upload.speed=115200
 Gen7-1284p-20.bootloader.low_fuses=0xF7
 Gen7-1284p-20.bootloader.high_fuses=0xD4
-Gen7-1284p-20.bootloader.extended_fuses=0x05
+Gen7-1284p-20.bootloader.extended_fuses=0xFD
 Gen7-1284p-20.bootloader.path=Gen7
 Gen7-1284p-20.bootloader.file=bootloader-1284P-16MHz.hex
 Gen7-1284p-20.bootloader.unlock_bits=0x3F