diff --git a/drivers/ssd1351/ssd1351_16bit.py b/drivers/ssd1351/ssd1351_16bit.py
index 4d30605..18cd898 100644
--- a/drivers/ssd1351/ssd1351_16bit.py
+++ b/drivers/ssd1351/ssd1351_16bit.py
@@ -14,7 +14,6 @@ import framebuf
 import utime
 import gc
 import micropython
-from uctypes import addressof
 from drivers.boolpalette import BoolPalette
 
 # https://github.com/peterhinch/micropython-nano-gui/issues/2
diff --git a/drivers/ssd1351/ssd1351_4bit.py b/drivers/ssd1351/ssd1351_4bit.py
index e43f79d..bc02ab5 100644
--- a/drivers/ssd1351/ssd1351_4bit.py
+++ b/drivers/ssd1351/ssd1351_4bit.py
@@ -15,7 +15,6 @@ import framebuf
 import utime
 import gc
 import micropython
-from uctypes import addressof
 from drivers.boolpalette import BoolPalette
 
 # https://github.com/peterhinch/micropython-nano-gui/issues/2
diff --git a/drivers/ssd1351/ssd1351_generic.py b/drivers/ssd1351/ssd1351_generic.py
index 589c2a8..243a612 100644
--- a/drivers/ssd1351/ssd1351_generic.py
+++ b/drivers/ssd1351/ssd1351_generic.py
@@ -9,17 +9,16 @@
 # This driver is based on the Adafruit C++ library for Arduino
 # https://github.com/adafruit/Adafruit-SSD1351-library.git
 
-# Copyright (c) Peter Hinch 2018-2020
+# Copyright (c) Peter Hinch 2018-2022
 # Released under the MIT license see LICENSE
 
 import framebuf
 import utime
 import gc
 import micropython
-from uctypes import addressof
 from drivers.boolpalette import BoolPalette
 
-import sys
+#import sys
 # https://github.com/peterhinch/micropython-nano-gui/issues/2
 # The ESP32 does not work reliably in SPI mode 1,1. Waveforms look correct.
 # Now using 0,0 on STM and ESP32