# Otii Arc quit working - How to get Repaired?

**URL:** <https://forum.qoitech.com/t/otii-arc-quit-working-how-to-get-repaired/343>\
**Category:** Support\
**Created:** [August 3, 2020, 4:24pm UTC](https://forum.qoitech.com/t/otii-arc-quit-working-how-to-get-repaired/343 "2020-08-03T16:24:49Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![eportage](https://avatars.discourse-cdn.com/v4/letter/e/7ea924/32.png) [@eportage](https://forum.qoitech.com/u/eportage)\
**Post date:** [August 3, 2020, 4:24pm UTC](https://forum.qoitech.com/t/otii-arc-quit-working-how-to-get-repaired/343/1 "2020-08-03T16:24:49Z")

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I’ve been using the Otii Arc for over a month now and have integrated it into my characterization process.

This morning when I attached it to my computer it failed to power up. There is no green LED activity and the software can not find it. I have tried several USB cables and two different computers. Nothing.

What is the process to send the tool back to be repaired?

Thank you in advance for your assistance.  
Peter

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**Author:** ![bjorn.rosqvist](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.qoitech.com/bjorn.rosqvist/32/238_2.png) [@bjorn.rosqvist](https://forum.qoitech.com/u/bjorn.rosqvist)\
**Post date:** [August 12, 2020, 6:44am UTC](https://forum.qoitech.com/t/otii-arc-quit-working-how-to-get-repaired/343/2 "2020-08-12T06:44:09Z")

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Hi Peter,

Just to inform in the forum.  
This issue is solved by erasing flash and re-flash the firmware.  
Root cause of this failure is unknown.

Best regards,  
Björn

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**Author:** ![jchait](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jchait](https://forum.qoitech.com/u/jchait)\
**Post date:** [May 16, 2022, 8:57am UTC](https://forum.qoitech.com/t/otii-arc-quit-working-how-to-get-repaired/343/3 "2022-05-16T08:57:05Z")

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I have the same problem. How do you erase the flash?  
Thanks  
Jaime

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**Author:** ![bjorn.rosqvist](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.qoitech.com/bjorn.rosqvist/32/238_2.png) [@bjorn.rosqvist](https://forum.qoitech.com/u/bjorn.rosqvist)\
**Post date:** [May 16, 2022, 1:21pm UTC](https://forum.qoitech.com/t/otii-arc-quit-working-how-to-get-repaired/343/4 "2022-05-16T13:21:13Z")

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Hi Jaime and welcome to the forum.

I suggest that you create a case in our case system (link below) and I will help you identify the root cause of your problem.

> **[Qoitech](https://www.qoitech.com/cases)**
>
> Qoitech user management

Best regards,  
Björn