# Unbricking

Source: https://forum.modalai.com/topic/467/unbricking
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: voxl
Posted: 2021-09-29 08:05:43 UTC by Nirge
Replies: 1 · Views: 651

## Nirge · 2021-09-29 08:05:43 UTC

Hi,
Just starting up a migration to Voxl as a companion.
Was reading up and wondering how often does it brick if shut-down without shutdown -f?
Is this a common occurence or a 1 in a 1000?
@see [https://docs.modalai.com/unbrick-voxl/](https://docs.modalai.com/unbrick-voxl/
)
Best regards,
Nirge

## Reply by Chad Sweet (ModalAI staff) · 2021-09-30 04:57:29 UTC

If there are not a lot of file operations, it is pretty rare. It can happen during development as folks are making changes on the board and then pulling power.

Linux has a setting for how often the flash is committed to reduce the risk, but of course there could be different side effects. You can see a writeup on the topic [here](https://superuser.com/questions/1057007/adjust-linux-disk-flush-intervals-to-avoid-blocking-user-processes), as it is common in all of this type of single board computers

Your smartphone fixes this by making you press the poweroff button before shutting off power.