# Need Help Flashing Ender 3 V2 (4.2.2 GD32F303)

**URL:** <https://klipper.discourse.group/t/need-help-flashing-ender-3-v2-4-2-2-gd32f303/24483>\
**Category:** General Discussion\
**Created:** [August 4, 2025, 6:50pm UTC](https://klipper.discourse.group/t/need-help-flashing-ender-3-v2-4-2-2-gd32f303/24483 "2025-08-04T18:50:36Z")\
**Posts on this page:** 3\
**Page:** 2

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**Author:** ![michisha](https://avatars.discourse-cdn.com/v4/letter/m/51bf81/32.png) [@michisha](https://klipper.discourse.group/u/michisha)\
**Post date:** [August 5, 2025, 3:11pm UTC](https://klipper.discourse.group/t/need-help-flashing-ender-3-v2-4-2-2-gd32f303/24483/21 "2025-08-05T15:11:46Z")

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tryed this config and the guides on top

> <https://github.com/Klipper3d/klipper/blob/master/config/printer-creality-ender3-v2-neo-2022.cfg>

> <https://github.com/Klipper3d/klipper/blob/master/config/printer-creality-ender3-v2-2020.cfg>

allso tryed with and without swd

and i get the chip and board by opening the printer and looking on it with my eyes

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**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://klipper.discourse.group/u/cardoc)\
**Post date:** [August 5, 2025, 3:24pm UTC](https://klipper.discourse.group/t/need-help-flashing-ender-3-v2-4-2-2-gd32f303/24483/22 "2025-08-05T15:24:04Z")

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Have you looked at the board?

Years ago I had a Sovol printer with a creality 4.2.2 board. After the 3rd one failed (under warranty) I reclaved it with a 4.2.7

The boards look identical but several pin names change.

When I put klipper on the 4.2.7 I used:

```auto
# This file contains pin mappings for the Creality "v4.2.7" board. To
# use this config, during "make menuconfig" select the STM32F103 with
# a "28KiB bootloader" and serial (on USART1 PA10/PA9) communication.

# If you prefer a direct serial connection, in "make menuconfig"
# select "Enable extra low-level configuration options" and select
# serial (on USART3 PB11/PB10), which is broken out on the 10 pin IDC
# cable used for the LCD module as follows:
# 3: Tx, 4: Rx, 9: GND, 10: VCC

# Flash this firmware by copying "out/klipper.bin" to a SD card and
# turning on the printer with the card inserted. The firmware
# filename must end in ".bin" and must not match the last filename
# that was flashed.

# See docs/Config_Reference.md for a description of parameters.

```

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\
**Post date:** [October 4, 2025, 3:24pm UTC](https://klipper.discourse.group/t/need-help-flashing-ender-3-v2-4-2-2-gd32f303/24483/23 "2025-10-04T15:24:17Z")

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