# balenaEtcher not working on MacOS Big Sur 11.4

**URL:** <https://forums.balena.io/t/balenaetcher-not-working-on-macos-big-sur-11-4/371017>\
**Category:** balenaEtcher\
**Created:** [July 29, 2024, 6:38pm UTC](https://forums.balena.io/t/balenaetcher-not-working-on-macos-big-sur-11-4/371017 "2024-07-29T18:38:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![aicho](https://avatars.discourse-cdn.com/v4/letter/a/3da27b/32.png) [@aicho](https://forums.balena.io/u/aicho)\
**Post date:** [July 29, 2024, 6:38pm UTC](https://forums.balena.io/t/balenaetcher-not-working-on-macos-big-sur-11-4/371017/1 "2024-07-29T18:38:38Z")

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Hey all, I’m trying to use etcher to flash jetpack 5.1.1 onto a 128GB microsd card. Whenever I run it, it is stuck on “starting…” and never gets beyond that. I’ve looked through the forums and have tried the following: 1) run using superuser permissions: sudo /Applications/balenaEtcher.app/Contents/MacOS/balenaEtcher, 2) reinstalling balenaEtcher, 3) redownloading the jetpack 5.1.1, 4) giving Full Disk access to balenaEtcher, 5) restarting my computer.

When I run with sudo, i get the following:  
[0729/113810.676916:WARNING:process\_memory\_mac.cc(94)] mach\_vm\_read(0x16b6d4000, 0x8000): (os/kern) protection failure (2)

[0729/113810.772921:WARNING:crash\_report\_exception\_handler.cc(235)] UniversalExceptionRaise: (os/kern) failure (5)

i’ve spent 10 hours trying to solve this by myself but I’m at a loss on what to do. any help woudl be greatly appreciated