diff --git a/util/bootloader.py b/util/bootloader.py
index bb46c57..064d74c 100644
--- a/util/bootloader.py
+++ b/util/bootloader.py
@@ -1,3 +1,8 @@
-import machine
+try:
+    import machine
+    machine.bootloader()
 
-machine.bootloader()
+except ImportError:
+    import microcontroller
+    microcontroller.on_next_reset(microcontroller.RunMode.BOOTLOADER)
+    microcontroller.reset()
diff --git a/util/reset.py b/util/reset.py
index aa58569..4003007 100644
--- a/util/reset.py
+++ b/util/reset.py
@@ -1,3 +1,7 @@
-import machine
+try:
+    import machine
+    machine.reset()
 
-machine.reset()
+except ImportError:
+    import microcontroller
+    microcontroller.reset()