# Will not upload

**URL:** <https://forum.xod.io/t/will-not-upload/5613>\
**Category:** Hardware Interfacing Questions\
**Created:** [December 3, 2021, 12:01pm UTC](https://forum.xod.io/t/will-not-upload/5613 "2021-12-03T12:01:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bgiorgio](https://avatars.discourse-cdn.com/v4/letter/b/c5a1d2/32.png) [@bgiorgio](https://forum.xod.io/u/bgiorgio)\
**Post date:** [December 3, 2021, 12:01pm UTC](https://forum.xod.io/t/will-not-upload/5613/1 "2021-12-03T12:01:58Z")

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I an using a Rex Qualis Uno R3 and receive errors when attempting to upload

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**Author:** ![gweimer](https://avatars.discourse-cdn.com/v4/letter/g/a9adbd/32.png) [@gweimer](https://forum.xod.io/u/gweimer)\
**Post date:** [December 4, 2021, 6:32am UTC](https://forum.xod.io/t/will-not-upload/5613/2 "2021-12-04T06:32:41Z")

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Not much we can do without knowing what the errors are. Have you selected Arduino UNO selected as the board model before uploading? Selected the appropriate Serial Port? Do you have a valid patch to upload? Have you tried a simple patch that doesn’t require additional libraries?

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**Author:** ![system](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/1X/eb7348baa04192c2ef932d1db54d44f09f8a7888.png) [@system](https://forum.xod.io/u/system)\
**Post date:** [January 3, 2022, 6:33am UTC](https://forum.xod.io/t/will-not-upload/5613/3 "2022-01-03T06:33:28Z")

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