diff --git a/src/platform/Zephyr/DiagnosticDataProviderImpl.cpp b/src/platform/Zephyr/DiagnosticDataProviderImpl.cpp
index 3c0a106aea..bb154a7b73 100644
--- a/src/platform/Zephyr/DiagnosticDataProviderImpl.cpp
+++ b/src/platform/Zephyr/DiagnosticDataProviderImpl.cpp
@@ -52,6 +52,10 @@ const size_t kMaxHeapSize = CONFIG_SRAM_BASE_ADDRESS + KB(CONFIG_SRAM_SIZE) - PO
 
 #endif
 
+#ifdef CONFIG_SOC_SERIES_NRF54HX
+#include <hal/nrf_resetinfo.h>
+#endif
+
 namespace chip {
 namespace DeviceLayer {
 
@@ -60,6 +64,32 @@ namespace {
 BootReasonType DetermineBootReason()
 {
 #ifdef CONFIG_HWINFO
+
+#ifdef CONFIG_SOC_SERIES_NRF54HX
+    uint32_t reason = nrf_resetinfo_resetreas_global_get(NRF_RESETINFO);
+
+    if (reason & RESETINFO_RESETREAS_GLOBAL_RESETPORONLY_Msk)
+    {
+        return BootReasonType::kBrownOutReset;
+    }
+
+    if (reason & RESETINFO_RESETREAS_GLOBAL_DOG_Msk)
+    {
+        return BootReasonType::kHardwareWatchdogReset;
+    }
+
+    if ((reason & (RESETINFO_RESETREAS_GLOBAL_RESETPIN_Msk | RESETINFO_RESETREAS_GLOBAL_RESETPOR_Msk)) ==
+        (RESETINFO_RESETREAS_GLOBAL_RESETPIN_Msk | RESETINFO_RESETREAS_GLOBAL_RESETPOR_Msk))
+    {
+        return BootReasonType::kPowerOnReboot;
+    }
+
+    if ((reason & (RESETINFO_RESETREAS_GLOBAL_RESETPOR_Msk | RESETINFO_RESETREAS_GLOBAL_SECSREQ_Msk)) ==
+        (RESETINFO_RESETREAS_GLOBAL_RESETPOR_Msk | RESETINFO_RESETREAS_GLOBAL_SECSREQ_Msk))
+    {
+        return BootReasonType::kSoftwareUpdateCompleted;
+    }
+#else
     uint32_t reason;
 
     if (hwinfo_get_reset_cause(&reason) != 0)
@@ -103,6 +133,7 @@ BootReasonType DetermineBootReason()
 #endif
         return BootReasonType::kSoftwareReset;
     }
+#endif
 #endif
 
     return BootReasonType::kUnspecified;
diff --git a/src/platform/nrfconnect/Reboot.cpp b/src/platform/nrfconnect/Reboot.cpp
index 47bff8c185..28bddb5c08 100644
--- a/src/platform/nrfconnect/Reboot.cpp
+++ b/src/platform/nrfconnect/Reboot.cpp
@@ -28,19 +28,7 @@
 namespace chip {
 namespace DeviceLayer {
 
-#if defined(CONFIG_ARCH_POSIX) || defined(CONFIG_SOC_SERIES_NRF54HX)
-
-void Reboot(SoftwareRebootReason reason)
-{
-    sys_reboot(SYS_REBOOT_WARM);
-}
-
-SoftwareRebootReason GetSoftwareRebootReason()
-{
-    return SoftwareRebootReason::kOther;
-}
-
-#else
+#if !(defined(CONFIG_ARCH_POSIX) || defined(CONFIG_SOC_SERIES_NRF54HX))
 
 using RetainedReason = decltype(nrf_power_gpregret_get(NRF_POWER, 0));