diff --git a/python/.changelog.d/1738.added b/python/.changelog.d/1738.added
new file mode 100644
index 00000000000..2e40897a986
--- /dev/null
+++ b/python/.changelog.d/1738.added
@@ -0,0 +1 @@
+trezorctl: new command `device reboot-to-bootloader` reboots T1 to bootloader
diff --git a/python/src/trezorlib/cli/device.py b/python/src/trezorlib/cli/device.py
index 39bd18e1ef8..bb6e37598f2 100644
--- a/python/src/trezorlib/cli/device.py
+++ b/python/src/trezorlib/cli/device.py
@@ -258,3 +258,17 @@ def sd_protect(client, operation):
     if client.features.model == "1":
         raise click.BadUsage("Trezor One does not support SD card protection.")
     return device.sd_protect(client, operation)
+
+
+@cli.command()
+@click.pass_obj
+def reboot_to_bootloader(obj):
+    """Reboot device into bootloader mode."""
+    # avoid using @with_client because it closes the session afterwards,
+    # which triggers double prompt on device
+    with obj.client_context() as client:
+        if client.features.model != "1":
+            click.echo(
+                f"Warning: Rebooting into bootloader not supported on Trezor {client.features.model}"
+            )
+        return device.reboot_to_bootloader(client)
diff --git a/python/src/trezorlib/cli/trezorctl.py b/python/src/trezorlib/cli/trezorctl.py
index e1554855202..1d501c42df5 100755
--- a/python/src/trezorlib/cli/trezorctl.py
+++ b/python/src/trezorlib/cli/trezorctl.py
@@ -190,6 +190,8 @@ def print_result(res, is_json, **kwargs):
                         click.echo("%s.%s: %s" % (k, kk, vv))
                 else:
                     click.echo("%s: %s" % (k, v))
+        elif isinstance(res, messages.Success):
+            click.echo(res.message)
         elif isinstance(res, protobuf.MessageType):
             click.echo(protobuf.format_message(res))
         elif res is not None:
diff --git a/python/src/trezorlib/device.py b/python/src/trezorlib/device.py
index 2179cd19be4..d6187e4614d 100644
--- a/python/src/trezorlib/device.py
+++ b/python/src/trezorlib/device.py
@@ -209,3 +209,9 @@ def backup(client):
 @expect(messages.Success, field="message")
 def cancel_authorization(client):
     return client.call(messages.CancelAuthorization())
+
+
+@session
+@expect(messages.Success)
+def reboot_to_bootloader(client):
+    return client.call(messages.RebootToBootloader())