diff --git a/bootloader/hos/hos.c b/bootloader/hos/hos.c
index 5a69f95..b2f34dd 100644
--- a/bootloader/hos/hos.c
+++ b/bootloader/hos/hos.c
@@ -408,6 +408,14 @@ int hos_launch(ini_sec_t *cfg)
 	// Replace 'warmboot.bin' if requested.
 	if (ctxt.warmboot)
 		memcpy((void *)ctxt.pkg1_id->warmboot_base, ctxt.warmboot, ctxt.warmboot_size);
+	else
+	{
+		// Else we patch it to allow downgrading.
+		patch_t *warmboot_patchset = ctxt.pkg1_id->warmboot_patchset;
+		gfx_printf(&gfx_con, "%kPatching Warmboot%k\n", 0xFFFFBA00, 0xFFCCCCCC);
+		for (u32 i = 0; warmboot_patchset[i].off != 0xFFFFFFFF; i++)
+			*(vu32 *)(ctxt.pkg1_id->warmboot_base + warmboot_patchset[i].off) = warmboot_patchset[i].val;
+	}
 	// Set warmboot address in PMC if required.
 	if (ctxt.pkg1_id->set_warmboot)
 		PMC(APBDEV_PMC_SCRATCH1) = ctxt.pkg1_id->warmboot_base;
diff --git a/bootloader/hos/pkg1.c b/bootloader/hos/pkg1.c
index 452d673..0ee3f5a 100644
--- a/bootloader/hos/pkg1.c
+++ b/bootloader/hos/pkg1.c
@@ -23,6 +23,8 @@
 #include "../utils/aarch64_util.h"
 #include "../sec/se.h"
 
+#define _NOPv7() 0xE320F000
+
 #define SM_100_ADR 0x4002B020
 PATCHSET_DEF(_secmon_1_patchset,
 	// Patch the relocator to be able to run from SM_100_ADR.
@@ -80,6 +82,39 @@ PATCHSET_DEF(_secmon_620_patchset,
 	{ 0xDC8 + 0xF10, _NOP() }  //Sections SHA2.
 );
 
+PATCHSET_DEF(_warmboot_1_patchset,
+	{ 0x4DC, _NOPv7() } // Fuse check.
+);
+
+PATCHSET_DEF(_warmboot_2_patchset,
+	{ 0x4DC, _NOPv7() } // Fuse check.
+);
+
+PATCHSET_DEF(_warmboot_3_patchset,
+	{ 0x4DC, _NOPv7() } // Fuse check.
+	{ 0x4F0, _NOPv7() } // Segment id check.
+);
+
+PATCHSET_DEF(_warmboot_4_patchset,
+	{ 0x544, _NOPv7() } // Fuse check.
+	{ 0x558, _NOPv7() } // Segment id check.
+);
+
+PATCHSET_DEF(_warmboot_5_patchset,
+	{ 0x544, _NOPv7() } // Fuse check.
+	{ 0x558, _NOPv7() } // Segment id check.
+);
+
+PATCHSET_DEF(_warmboot_6_patchset,
+	{ 0x544, _NOPv7() } // Fuse check.
+	{ 0x558, _NOPv7() } // Segment id check.
+);
+
+PATCHSET_DEF(_warmboot_620_patchset,
+	{ 0x544, _NOPv7() } // Fuse check.
+	{ 0x558, _NOPv7() } // Segment id check.
+);
+
 /*
  * package1.1 header: <wb, ldr, sm>
  * package1.1 layout:
@@ -94,14 +129,14 @@ PATCHSET_DEF(_secmon_620_patchset,
  */
 
 static const pkg1_id_t _pkg1_ids[] = {
-	{ "20161121183008", 0, 0x1900, 0x3FE0, { 2, 1, 0 }, SM_100_ADR, 0x8000D000, true,  _secmon_1_patchset },   //1.0.0 (Patched relocator)
-	{ "20170210155124", 0, 0x1900, 0x3FE0, { 0, 1, 2 }, 0x4002D000, 0x8000D000, true,  _secmon_2_patchset },   //2.0.0 - 2.3.0
-	{ "20170519101410", 1, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, 0x8000D000, true,  _secmon_3_patchset },   //3.0.0
-	{ "20170710161758", 2, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, 0x8000D000, true,  _secmon_3_patchset },   //3.0.1 - 3.0.2
-	{ "20170921172629", 3, 0x1800, 0x3FE0, { 1, 2, 0 }, 0x4002B000, 0x4003B000, false, _secmon_4_patchset },   //4.0.0 - 4.1.0
-	{ "20180220163747", 4, 0x1900, 0x3FE0, { 1, 2, 0 }, 0x4002B000, 0x4003B000, false, _secmon_5_patchset },   //5.0.0 - 5.1.0
-	{ "20180802162753", 5, 0x1900, 0x3FE0, { 1, 2, 0 }, 0x4002B000, 0x4003D800, false, _secmon_6_patchset },   //6.0.0 - 6.1.0
-	{ "20181107105733", 6, 0x0E00, 0x6FE0, { 1, 2, 0 }, 0x4002B000, 0x4003D800, false, _secmon_620_patchset }, //6.2.0
+	{ "20161121183008", 0, 0x1900, 0x3FE0, { 2, 1, 0 }, SM_100_ADR, 0x8000D000, true,  _secmon_1_patchset, _warmboot_1_patchset },     //1.0.0 (Patched relocator)
+	{ "20170210155124", 0, 0x1900, 0x3FE0, { 0, 1, 2 }, 0x4002D000, 0x8000D000, true,  _secmon_2_patchset, _warmboot_2_patchset },     //2.0.0 - 2.3.0
+	{ "20170519101410", 1, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, 0x8000D000, true,  _secmon_3_patchset, _warmboot_3_patchset },     //3.0.0
+	{ "20170710161758", 2, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, 0x8000D000, true,  _secmon_3_patchset, _warmboot_3_patchset },     //3.0.1 - 3.0.2
+	{ "20170921172629", 3, 0x1800, 0x3FE0, { 1, 2, 0 }, 0x4002B000, 0x4003B000, false, _secmon_4_patchset, _warmboot_4_patchset },     //4.0.0 - 4.1.0
+	{ "20180220163747", 4, 0x1900, 0x3FE0, { 1, 2, 0 }, 0x4002B000, 0x4003B000, false, _secmon_5_patchset, _warmboot_5_patchset },     //5.0.0 - 5.1.0
+	{ "20180802162753", 5, 0x1900, 0x3FE0, { 1, 2, 0 }, 0x4002B000, 0x4003D800, false, _secmon_6_patchset, _warmboot_6_patchset },     //6.0.0 - 6.1.0
+	{ "20181107105733", 6, 0x0E00, 0x6FE0, { 1, 2, 0 }, 0x4002B000, 0x4003D800, false, _secmon_620_patchset, _warmboot_620_patchset }, //6.2.0
 	{ NULL } //End.
 };
 
diff --git a/bootloader/hos/pkg1.h b/bootloader/hos/pkg1.h
index 7d477f6..455d746 100644
--- a/bootloader/hos/pkg1.h
+++ b/bootloader/hos/pkg1.h
@@ -42,6 +42,7 @@ typedef struct _pkg1_id_t
 	u32 warmboot_base;
 	bool set_warmboot;
 	patch_t *secmon_patchset;
+	patch_t *warmboot_patchset;
 } pkg1_id_t;
 
 typedef struct _pk11_hdr_t