diff --git a/west/trezor/README.md b/west/trezor/README.md
index 76a691f0f1..bfa505e9ea 100644
--- a/west/trezor/README.md
+++ b/west/trezor/README.md
@@ -61,7 +61,7 @@ west update
 Build the application for the t3w1_revA_nrf52832 board:
 ```sh
 cd trezor
-west build ./trezor-ble -b t3w1_revA_nrf52832
+west build ./trezor-ble -b t3w1_revA_nrf52832 --sysbuild
 ```
 
 
diff --git a/west/trezor/trezor-ble/mcuboot.conf.without_serial_recovery b/west/trezor/trezor-ble/mcuboot.conf.without_serial_recovery
deleted file mode 100644
index 4682152457..0000000000
--- a/west/trezor/trezor-ble/mcuboot.conf.without_serial_recovery
+++ /dev/null
@@ -1,25 +0,0 @@
-#CONFIG_PM_PARTITION_SIZE_MCUBOOT=0x10000
-
-#CONFIG_SERIAL=y
-#CONFIG_UART_LINE_CTRL=y
-#CONFIG_UART_NRFX=y
-#CONFIG_UART_INTERRUPT_DRIVEN=n
-
-# MCUBoot serial
-CONFIG_GPIO=y
-CONFIG_GPIO_NRFX_INTERRUPT=n
-#CONFIG_MCUBOOT_SERIAL=y
-#CONFIG_BOOT_SERIAL_CDC_ACM=y
-#CONFIG_BOOT_SERIAL_UART=y
-
-#CONFIG_LOG_BACKEND_UART=y
-
-#CONFIG_BOOT_SERIAL_DETECT_PIN=11
-#CONFIG_MCUMGR_SMP_UART=y
-CONFIG_MCUBOOT_BOOTLOADER_MODE_SINGLE_APP=y
-CONFIG_SINGLE_APPLICATION_SLOT=y
-
-CONFIG_RTT_CONSOLE=y
-CONFIG_USE_SEGGER_RTT=y
-CONFIG_UART_CONSOLE=n
-
diff --git a/west/trezor/trezor-ble/prj.conf b/west/trezor/trezor-ble/prj.conf
index d0e50e06dc..07a21bcffe 100644
--- a/west/trezor/trezor-ble/prj.conf
+++ b/west/trezor/trezor-ble/prj.conf
@@ -94,11 +94,3 @@ CONFIG_ASSERT=y
 # bootloader
 #CONFIG_SECURE_BOOT=y
 CONFIG_BOOTLOADER_MCUBOOT=y
-#CONFIG_SB_SIGNING_OPENSSL=y
-#CONFIG_SB_SIGNING_KEY_FILE="/home/ondro/work/satoshilabs/repos/ncs/mcuboot_priv.pem"
-#CONFIG_SB_SIGNING_KEY_FILE="/home/ondro/work/satoshilabs/repos/ncs/mcuboot_priv.pem"
-#CONFIG_SB_PUBLIC_KEY_FILES="/home/ondro/work/satoshilabs/repos/ncs/mcuboot_pub.pem"
-#CONFIG_MCUBOOT_SIGNATURE_KEY_FILE="/home/ondro/work/satoshilabs/repos/ncs/mcuboot_priv.pem"
-#CONFIG_MCUBOOT_SIGNATURE_KEY_FILE="/home/ondro/work/satoshilabs/repos/ncs/mcuboot_priv.pem"
-#CONFIG_BOOT_SIGNATURE_KEY_FILE="/home/ondro/work/satoshilabs/repos/ncs/mcuboot_priv.pem"
-CONFIG_MCUBOOT_BOOTLOADER_MODE_SINGLE_APP=y
diff --git a/west/trezor/trezor-ble/sysbuild.conf b/west/trezor/trezor-ble/sysbuild.conf
new file mode 100644
index 0000000000..00dcdb4d4b
--- /dev/null
+++ b/west/trezor/trezor-ble/sysbuild.conf
@@ -0,0 +1,5 @@
+# Sysbuild configuration file.
+
+# Enable MCUboot
+SB_CONFIG_BOOTLOADER_MCUBOOT=y
+SB_CONFIG_MCUBOOT_MODE_SINGLE_APP=y
diff --git a/west/trezor/trezor-ble/mcuboot.conf b/west/trezor/trezor-ble/sysbuild/mcuboot.conf
similarity index 100%
rename from west/trezor/trezor-ble/mcuboot.conf
rename to west/trezor/trezor-ble/sysbuild/mcuboot.conf