# " make: \*\*\* No rule to make target 'flash'. Stop. " Error received when flashing MCU **URL:** \ **Category:** General Discussion\ **Created:** [March 2, 2024, 8:27pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606 "2024-03-02T20:27:16Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![CobraDesign47](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/cobradesign47/32/10304_2.png) [@CobraDesign47](https://klipper.discourse.group/u/CobraDesign47)\ **Post date:** [March 2, 2024, 8:27pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/1 "2024-03-02T20:27:16Z")
### Basic Information: I am trying to install Klipper with KIAUH and Mainsail following Sineos’ guide, and when I try to flash the firmware I get the error as described in the title of this post. ```auto make flash FLASH_DEVICE ``` The `FLASH_DEVICE` part in that command is supposed to be replaced by the info retrieved by the `ls /dev/serial/by-id/*` command, right? Is there any info that needs to go after `FLASH_DEVICE`? If so, what is that info? ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [March 2, 2024, 8:30pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/2 "2024-03-02T20:30:02Z")
Maybe helpful to know what device you want to flash (what board). ---
**Author:** ![CobraDesign47](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/cobradesign47/32/10304_2.png) [@CobraDesign47](https://klipper.discourse.group/u/CobraDesign47)\ **Post date:** [March 2, 2024, 8:37pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/3 "2024-03-02T20:37:16Z")
I am using a Raspberry pi 4 to do this. I’m not sure what my printer board is, though. When I built my firmware, I selected avr atmega2560 in one of the options(I can’t remember which one it was). Would that be a problem? ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [March 2, 2024, 8:41pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/4 "2024-03-02T20:41:04Z")
> [@CobraDesign47](#): > > I’m not sure what my printer board is You should be quite sure what you want to flash, else flashing makes no sense. The setup is made for certain boards/MCUs. You can’t flash a 32-bit board with 8-bit firmware. A close look on the board helps a lot: Name of the board and the MCU ---
**Author:** ![CobraDesign47](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/cobradesign47/32/10304_2.png) [@CobraDesign47](https://klipper.discourse.group/u/CobraDesign47)\ **Post date:** [March 2, 2024, 8:49pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/5 "2024-03-02T20:49:40Z")
My MCU is the one in the separate case, right? ---
**Author:** ![CobraDesign47](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/cobradesign47/32/10304_2.png) [@CobraDesign47](https://klipper.discourse.group/u/CobraDesign47)\ **Post date:** [March 2, 2024, 8:51pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/6 "2024-03-02T20:51:39Z")
It looks like the board that’s not in a separate case says “Creality V2.2” ---
**Author:** ![CobraDesign47](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/cobradesign47/32/10304_2.png) [@CobraDesign47](https://klipper.discourse.group/u/CobraDesign47)\ **Post date:** [March 2, 2024, 10:34pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/7 "2024-03-02T22:34:19Z")
I think I’m going to try to build a different firmware. How would I delete the old one? ---
**Author:** ![CobraDesign47](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/cobradesign47/32/10304_2.png) [@CobraDesign47](https://klipper.discourse.group/u/CobraDesign47)\ **Post date:** [March 2, 2024, 10:49pm UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/8 "2024-03-02T22:49:50Z")
I poked around a bit and solved it by building a different firmware. ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\ **Post date:** [April 2, 2024, 8:50am UTC](https://klipper.discourse.group/t/make-no-rule-to-make-target-flash-stop-error-received-when-flashing-mcu/14606/9 "2024-04-02T08:50:41Z")
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