diff --git a/bootloader/hos/hos.c b/bootloader/hos/hos.c
index 695c570..ea29417 100644
--- a/bootloader/hos/hos.c
+++ b/bootloader/hos/hos.c
@@ -1156,8 +1156,8 @@ int hos_launch(ini_sec_t *cfg)
 	// Disable display. This must be executed before secmon to provide support for all fw versions.
 	display_end();
 
-	// Clear EMC_SCRATCH0.
-	EMC(EMC_SCRATCH0) = 0;
+	// Override uCID if set.
+	EMC(EMC_SCRATCH0) = ctxt.ucid;
 
 	// Hold USBD, USB2, AHBDMA and APBDMA in reset for SoC state validation on sleep.
 	CLOCK(CLK_RST_CONTROLLER_RST_DEV_L_SET) = BIT(CLK_L_USBD);
diff --git a/bootloader/hos/hos.h b/bootloader/hos/hos.h
index ed757c1..0a73dd1 100644
--- a/bootloader/hos/hos.h
+++ b/bootloader/hos/hos.h
@@ -94,8 +94,8 @@ typedef struct _launch_ctxt_t
 	u32   pkg2_size;
 	bool  new_pkg2;
 
-	void  *kernel;
-	u32    kernel_size;
+	void *kernel;
+	u32   kernel_size;
 
 	link_t kip1_list;
 	char*  kip1_patches;
@@ -109,6 +109,8 @@ typedef struct _launch_ctxt_t
 	u32   fss0_hosver;
 	bool  atmosphere;
 
+	int ucid;
+
 	exo_ctxt_t exo_ctx;
 
 	ini_sec_t *cfg;
diff --git a/bootloader/hos/hos_config.c b/bootloader/hos/hos_config.c
index 1311e94..b014c0b 100644
--- a/bootloader/hos/hos_config.c
+++ b/bootloader/hos/hos_config.c
@@ -271,6 +271,14 @@ static int _config_exo_fatal_payload(launch_ctxt_t *ctxt, const char *value)
 	return 1;
 }
 
+static int _config_ucid(launch_ctxt_t *ctxt, const char *value)
+{
+	// Override uCID if set.
+	ctxt->ucid = atoi(value);
+
+	return 1;
+}
+
 typedef struct _cfg_handler_t
 {
 	const char *key;
@@ -278,23 +286,24 @@ typedef struct _cfg_handler_t
 } cfg_handler_t;
 
 static const cfg_handler_t _config_handlers[] = {
-	{ "warmboot", _config_warmboot },
-	{ "secmon", _config_secmon },
-	{ "kernel", _config_kernel },
-	{ "kip1", _config_kip1 },
-	{ "kip1patch", config_kip1patch },
-	{ "fullsvcperm", _config_svcperm },
-	{ "debugmode", _config_debugmode },
-	{ "stock", _config_stock },
-	{ "atmosphere", _config_atmosphere },
-	{ "fss0", _config_fss },
-	{ "exofatal", _config_exo_fatal_payload},
-	{ "emummcforce", _config_emummc_forced },
+	{ "warmboot",         _config_warmboot },
+	{ "secmon",           _config_secmon },
+	{ "kernel",           _config_kernel },
+	{ "kip1",             _config_kip1 },
+	{ "kip1patch",        config_kip1patch },
+	{ "fullsvcperm",      _config_svcperm },
+	{ "debugmode",        _config_debugmode },
+	{ "stock",            _config_stock },
+	{ "atmosphere",       _config_atmosphere },
+	{ "fss0",             _config_fss },
+	{ "exofatal",         _config_exo_fatal_payload},
+	{ "emummcforce",      _config_emummc_forced },
 	{ "nouserexceptions", _config_dis_exo_user_exceptions },
-	{ "userpmu", _config_exo_user_pmu_access },
-	{ "usb3force", _config_exo_usb3_force },
-	{ "cal0blank", _config_exo_cal0_blanking },
-	{ "cal0writesys", _config_exo_cal0_writes_enable },
+	{ "userpmu",          _config_exo_user_pmu_access },
+	{ "usb3force",        _config_exo_usb3_force },
+	{ "cal0blank",        _config_exo_cal0_blanking },
+	{ "cal0writesys",     _config_exo_cal0_writes_enable },
+	{ "ucid",             _config_ucid },
 	{ NULL, NULL },
 };