diff --git a/config/printer-eryone-er20-2021.cfg b/config/printer-eryone-er20-2021.cfg
new file mode 100644
index 00000000..ff730dad
--- /dev/null
+++ b/config/printer-eryone-er20-2021.cfg
@@ -0,0 +1,185 @@
+# This file contains common pin mappings for the Eryone ER-20 board
+# board. To use this config, the firmware should be compiled for the
+# STM32F103 with a 16KiB HID Bootloader.
+
+# Extra settings to support BL Touch, Filament Runout sensor and
+# have setting for fixing GCode errors, these configus can be found on
+# Eryone's Facebook Group under files.
+# Facebook like to files: https://www.facebook.com/groups/247271792709370/files
+
+# See docs/Config_Reference.md for a description of parameters.
+
+[stepper_x]
+step_pin: PB15
+dir_pin: PB14
+rotation_distance: 40
+enable_pin: !PD10
+microsteps: 16
+endstop_pin: tmc2209_stepper_x:virtual_endstop
+position_endstop: 0
+position_max: 250
+homing_speed: 40
+homing_retract_dist: 0
+
+[tmc2209 stepper_x]
+uart_pin: PC11
+tx_pin: PC10
+diag_pin: ^PD8
+uart_address: 2
+run_current: 0.6
+hold_current: 0.3
+stealthchop_threshold: 999999
+driver_SGTHRS: 80
+
+[stepper_y]
+step_pin: PD14
+dir_pin: !PD13
+enable_pin: !PC6
+microsteps: 16
+rotation_distance: 40
+endstop_pin: tmc2209_stepper_y:virtual_endstop
+position_min: -9
+position_endstop: -9
+position_max: 235
+homing_speed: 50
+homing_retract_dist: 0
+
+[tmc2209 stepper_y]
+uart_pin: PC11
+tx_pin: PC10
+diag_pin: ^PD15
+uart_address: 3
+run_current: 0.7
+hold_current: 0.35
+stealthchop_threshold: 999999
+driver_SGTHRS: 100
+
+[stepper_z]
+step_pin: PC8
+dir_pin: !PC7
+enable_pin: !PA8
+microsteps: 16
+rotation_distance: 8
+endstop_pin: probe:z_virtual_endstop
+position_max: 250
+position_min: -1
+
+[tmc2209 stepper_z]
+uart_pin: PC11
+tx_pin: PC10
+diag_pin: ^PC9
+uart_address: 1
+run_current: 0.7
+hold_current: 0.35
+stealthchop_threshold: 999999
+driver_SGTHRS: 0
+
+[extruder]
+step_pin: PE13
+dir_pin: PE14
+enable_pin: !PB13
+microsteps: 16
+# Stock extruder [200 steps/rot]*[16 steps]/[93 steps/mm]
+rotation_distance: 34.4
+nozzle_diameter: 0.4
+filament_diameter: 1.75
+max_extrude_only_distance: 150
+heater_pin: PD11
+sensor_type: EPCOS 100K B57560G104F
+sensor_pin: PC1
+control: pid
+pid_kp: 26.11
+pid_ki: 2.01
+pid_kd: 85
+min_temp: 0
+max_temp: 250
+
+[tmc2209 extruder]
+uart_pin: PC11
+tx_pin: PC10
+uart_address: 0
+run_current: 0.7
+hold_current: 0.35
+stealthchop_threshold: 999999
+
+[heater_bed]
+heater_pin: PD12
+sensor_type: ATC Semitec 104GT-2
+sensor_pin: PC2
+control: pid
+pid_kp: 100.12
+pid_ki: 5
+pid_kd: 305
+min_temp: 0
+max_temp: 100
+
+[fan]
+pin: PB5
+
+[heater_fan nozzle_cooling_fan]
+pin: PB4
+
+[mcu]
+serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0
+restart_method: command
+
+[printer]
+kinematics: cartesian
+max_velocity: 300
+max_accel: 1500
+max_z_velocity: 5
+max_z_accel: 100
+
+######################################################################
+#  Probing/Mesh Leveling settings for stock BL Touch.
+#  Please make sure you set the correct values for your offsets.
+######################################################################
+
+[bltouch]
+sensor_pin: ^PA11
+control_pin: PA12
+pin_move_time: 0.700
+x_offset: 34
+y_offset: 0
+z_offset: 2.6
+pin_up_touch_mode_reports_triggered: False
+
+[safe_z_home]
+home_xy_position: 5,5
+z_hop: 5.0
+z_hop_speed: 5.0
+
+[bed_mesh]
+speed: 80
+mesh_min: 40,20
+mesh_max: 210,205
+probe_count: 5,5
+
+######################################################################
+# "RepRapDiscount 128x64 Full Graphic Smart Controller" type display
+######################################################################
+
+[display]
+lcd_type: st7920
+cs_pin: EXP1_4
+sclk_pin: EXP1_5
+sid_pin: EXP1_3
+encoder_pins: ^EXP2_3, ^EXP2_5
+click_pin: ^!EXP1_2
+#kill_pin: ^!EXP2_8
+
+[output_pin beeper]
+pin: EXP1_1
+
+######################################################################
+# EXP1 / EXP2 (display) pins
+######################################################################
+
+[board_pins]
+aliases:
+    # EXP1 header
+    EXP1_1=PE12, EXP1_3=PE10, EXP1_5=PE8, EXP1_7=PB2,
+    EXP1_2=PE11, EXP1_4=PE9, EXP1_6=PE7, EXP1_8=PB1,
+    # EXP2 header
+    EXP2_3=PE4, EXP2_5=PE3
+    # Pins EXP2_1, EXP2_6, EXP2_2 are also MISO, MOSI, SCK of bus "spi2"
diff --git a/config/printer-eryone-thinker-series-v2-2020.cfg b/config/printer-eryone-thinker-series-v2-2020.cfg
index cd7563d4..31a6d5fd 100644
--- a/config/printer-eryone-thinker-series-v2-2020.cfg
+++ b/config/printer-eryone-thinker-series-v2-2020.cfg
@@ -84,7 +84,8 @@ min_temp: 0
 max_temp: 100
 
 [mcu]
-serial: /dev/serial/by-id/usb-1a86_USB2.0-Serial-if00-port0
+serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0
+restart_method: command
 
 [printer]
 kinematics: cartesian
diff --git a/test/klippy/printers.test b/test/klippy/printers.test
index 0e1327ba..deba9628 100644
--- a/test/klippy/printers.test
+++ b/test/klippy/printers.test
@@ -155,6 +155,7 @@ CONFIG ../../config/printer-creality-ender3-v2-2020.cfg
 CONFIG ../../config/printer-creality-ender3max-2021.cfg
 CONFIG ../../config/printer-creality-ender3pro-2020.cfg
 CONFIG ../../config/printer-creality-ender6-2020.cfg
+CONFIG ../../config/printer-eryone-er20-2021.cfg
 CONFIG ../../config/printer-flsun-q5-2020.cfg
 CONFIG ../../config/printer-flsun-qqs-2020.cfg
 CONFIG ../../config/printer-fokoos-odin5-f3-2021.cfg