# Help solving error

**URL:** <https://forums.balena.io/t/help-solving-error/5584>\
**Category:** balenaEtcher\
**Created:** [March 10, 2019, 8:35am UTC](https://forums.balena.io/t/help-solving-error/5584 "2019-03-10T08:35:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Papabearbuddy](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/papabearbuddy/32/1663_2.png) [@Papabearbuddy](https://forums.balena.io/u/Papabearbuddy)\
**Post date:** [March 10, 2019, 8:35am UTC](https://forums.balena.io/t/help-solving-error/5584/1 "2019-03-10T08:35:48Z")

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Iam using Etcher to flash a large image on a external HHD (256gb retropie image).

It does finish but with a error; ‘1 failed device  
Source and destination checksum do not match’

Is there a way too remedy this? what does it mean?

Thank you

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**Author:** ![zvin](https://avatars.discourse-cdn.com/v4/letter/z/a5b964/32.png) [@zvin](https://forums.balena.io/u/zvin)\
**Post date:** [April 1, 2019, 8:55am UTC](https://forums.balena.io/t/help-solving-error/5584/4 "2019-04-01T08:55:22Z")

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@Papabearbuddy it means that when we try reading back the external hdd, we don’t get the exact same bytes that we’ve written to it. In general it means that your hard drive has issues, try flashing something else.