diff --git a/.gitignore b/.gitignore
index ce006b57..0da8e1b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -232,8 +232,11 @@ IDE/Renesas/e2studio/RX72N/wolfBoot/HardwareDebug
 IDE/Renesas/e2studio/RX72N/wolfBoot/src/smc_gen
 
 # IDE pico-sdk build directories
-IDE/pico-sdk/rp23550/wolfboot/build
-IDE/pico-sdk/rp23550/test-app/build
+IDE/pico-sdk/rp2350/wolfboot/build
+IDE/pico-sdk/rp2350/test-app/build
+
+# Third party test application distributed off-tree
+IDE/pico-sdk/rp2350/test-app/blink.c
 
 # Renesas Libraries
 lib/r_bsp
diff --git a/IDE/pico-sdk/rp2350/test-app/blink.c b/IDE/pico-sdk/rp2350/test-app/blink.c
deleted file mode 100644
index e588b0e8..00000000
--- a/IDE/pico-sdk/rp2350/test-app/blink.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/**
- * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include "pico/stdlib.h"
-
-// Pico W devices use a GPIO on the WIFI chip for the LED,
-// so when building for Pico W, CYW43_WL_GPIO_LED_PIN will be defined
-#ifdef CYW43_WL_GPIO_LED_PIN
-#include "pico/cyw43_arch.h"
-#endif
-
-#ifndef LED_DELAY_MS
-#define LED_DELAY_MS 250
-#endif
-
-// Perform initialisation
-int pico_led_init(void) {
-#if defined(PICO_DEFAULT_LED_PIN)
-    // A device like Pico that uses a GPIO for the LED will define PICO_DEFAULT_LED_PIN
-    // so we can use normal GPIO functionality to turn the led on and off
-    gpio_init(PICO_DEFAULT_LED_PIN);
-    gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);
-    return PICO_OK;
-#elif defined(CYW43_WL_GPIO_LED_PIN)
-    // For Pico W devices we need to initialise the driver etc
-    return cyw43_arch_init();
-#endif
-}
-
-// Turn the led on or off
-void pico_set_led(bool led_on) {
-#if defined(PICO_DEFAULT_LED_PIN)
-    // Just set the GPIO on or off
-    gpio_put(PICO_DEFAULT_LED_PIN, led_on);
-#elif defined(CYW43_WL_GPIO_LED_PIN)
-    // Ask the wifi "driver" to set the GPIO on or off
-    cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, led_on);
-#endif
-}
-
-int main() {
-    int rc = pico_led_init();
-    hard_assert(rc == PICO_OK);
-    while (true) {
-        pico_set_led(true);
-        sleep_ms(LED_DELAY_MS);
-        pico_set_led(false);
-        sleep_ms(LED_DELAY_MS);
-    }
-}
diff --git a/IDE/pico-sdk/rp2350/test-app/build-signed-app.sh b/IDE/pico-sdk/rp2350/test-app/build-signed-app.sh
index e2605383..d474c292 100755
--- a/IDE/pico-sdk/rp2350/test-app/build-signed-app.sh
+++ b/IDE/pico-sdk/rp2350/test-app/build-signed-app.sh
@@ -5,6 +5,10 @@ cd build
 cmake .. -DPICO_SDK_PATH=$PICO_SDK_PATH -DPICO_PLATFORM=rp2350
 cat pico_flash_region.ld | sed -e "s/0x10000000/0x10040400/g" >pico_flash_region_wolfboot.ld
 cp pico_flash_region_wolfboot.ld pico_flash_region.ld
+
+# Get off-tree source file from raspberry pico-examples
+curl -o blink.c https://raw.githubusercontent.com/raspberrypi/pico-examples/refs/tags/sdk-2.1.0/blink/blink.c
+
 make clean && make
 ../../../../../tools/keytools/sign --sha256 --ecc256 blink.bin \
     ../../../../../wolfboot_signing_private_key.der 1