diff --git a/api/bootloader/device.go b/api/bootloader/device.go
index 69d97ea..45ffb26 100644
--- a/api/bootloader/device.go
+++ b/api/bootloader/device.go
@@ -21,7 +21,6 @@ import (
 	"encoding/binary"
 	"io"
 	"math"
-	"time"
 
 	"github.com/digitalbitbox/bitbox02-api-go/api/common"
 	"github.com/digitalbitbox/bitbox02-api-go/util/errp"
@@ -62,7 +61,6 @@ type Status struct {
 	Progress          float64 `json:"progress"`
 	UpgradeSuccessful bool    `json:"upgradeSuccessful"`
 	ErrMsg            string  `json:"errMsg"`
-	RebootSeconds     int     `json:"rebootSeconds"`
 }
 
 func toByte(b bool) byte {
@@ -78,7 +76,6 @@ type Device struct {
 	product         common.Product
 	status          *Status
 	onStatusChanged func(*Status)
-	sleep           func(time.Duration)
 }
 
 // NewDevice creates a new instance of Device.
@@ -93,7 +90,6 @@ func NewDevice(
 		product:         product,
 		status:          &Status{},
 		onStatusChanged: onStatusChanged,
-		sleep:           time.Sleep,
 	}
 }
 
@@ -301,11 +297,6 @@ func (device *Device) UpgradeFirmware(firmware []byte) error {
 	device.status.Progress = 0
 	device.status.UpgradeSuccessful = true
 	device.onStatusChanged(device.status)
-	for seconds := 5; seconds > 0; seconds-- {
-		device.status.RebootSeconds = seconds
-		device.onStatusChanged(device.status)
-		device.sleep(time.Second)
-	}
 	return device.Reboot()
 }
 
diff --git a/api/bootloader/device_export_test.go b/api/bootloader/device_export_test.go
deleted file mode 100644
index 01a4df4..0000000
--- a/api/bootloader/device_export_test.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2018-2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package bootloader
-
-import "time"
-
-func (device *Device) TstSetSleep(sleep func(time.Duration)) {
-	device.sleep = sleep
-}
diff --git a/api/bootloader/device_test.go b/api/bootloader/device_test.go
index 40f3a04..bec0cec 100644
--- a/api/bootloader/device_test.go
+++ b/api/bootloader/device_test.go
@@ -21,7 +21,6 @@ import (
 	"fmt"
 	"io/ioutil"
 	"testing"
-	"time"
 
 	"github.com/digitalbitbox/bitbox02-api-go/api/bootloader"
 	"github.com/digitalbitbox/bitbox02-api-go/api/common"
@@ -259,16 +258,6 @@ func TestUpgradeFirmware(t *testing.T) {
 			return nil
 		}
 
-		const rebootSeconds = 5
-		sleepCalls := 0
-		env.device.TstSetSleep(func(d time.Duration) {
-			require.Equal(t, time.Second, d)
-			require.Less(t, sleepCalls, rebootSeconds)
-			require.True(t, currentStatus.UpgradeSuccessful)
-			require.Equal(t, rebootSeconds-sleepCalls, currentStatus.RebootSeconds)
-			sleepCalls++
-		})
-
 		require.Zero(t, *env.device.Status())
 		require.NoError(t, env.device.UpgradeFirmware(signedFirmware))
 
@@ -319,9 +308,8 @@ func TestUpgradeFirmware(t *testing.T) {
 		require.True(t, status.UpgradeSuccessful)
 
 		// reboot
-		msg, status = takeOne()
+		msg, _ = takeOne()
 		require.Equal(t, byte('r'), msg[0])
-		require.Equal(t, 1, status.RebootSeconds)
 	})
 }