# EastBaySource Maslow CNC main control board damaged

**URL:** <https://forums.maslowcnc.com/t/eastbaysource-maslow-cnc-main-control-board-damaged/17384>\
**Category:** Electronics\
**Created:** [November 21, 2021, 5:02pm UTC](https://forums.maslowcnc.com/t/eastbaysource-maslow-cnc-main-control-board-damaged/17384 "2021-11-21T17:02:34Z")\
**Posts on this page:** 1\
**Showing post:** 11

<div class="post-metadata">

**Author:** ![vayu.rw](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/vayu.rw/32/19966_2.png) [@vayu.rw](https://forums.maslowcnc.com/u/vayu.rw)\
**Post date:** [November 22, 2021, 11:36pm UTC](https://forums.maslowcnc.com/t/eastbaysource-maslow-cnc-main-control-board-damaged/17384/11 "2021-11-22T23:36:44Z")

</div>

Hi.  
As I started to go through the instructions, I realised that I had tried to update the firmware on the board, However after that particular update, my left motor would not stop spinning. To fix that Iwas told by @EastBaySource to flash their firmware as described in this post : [Motor won't stop turning - #18 by vayu.rw](https://forums.maslowcnc.com/t/motor-wont-stop-turning/16680/18)

I am trying to floow those instructions toupdate the firmware, But now I am getting

avrdude: stk500v2\_ReceiveMessage(): timeout  
avrdude: stk500v2\_ReceiveMessage(): timeout  
avrdude: stk500v2\_ReceiveMessage(): timeout  
avrdude: stk500v2\_ReceiveMessage(): timeout  
avrdude: stk500v2\_ReceiveMessage(): timeout  
avrdude: stk500v2\_ReceiveMessage(): timeout  
avrdude: stk500v2\_ReceiveMessage(): timeout  
avrdude: stk500v2\_getsync(): timeout communicating with programmer

There is supposedly a fix for this where in I add my user (the user I am logged in as while running the Arduino IDE) to the dialout group  
I did that. Logged out and logged back in . I am still getting this error.

any ideas ?

---

_[View the full topic](https://forums.maslowcnc.com/t/eastbaysource-maslow-cnc-main-control-board-damaged/17384)._