# \#qr-code

**URL:** https://forum.8thwall.com/tag/qr-code/79.md

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## [Device Authorization for Developers](https://forum.8thwall.com/t/device-authorization-for-developers/8082)

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**Author:** [@Wildlife\_Design](https://forum.8thwall.com/u/Wildlife_Design)\
**Replies:** 1\
**Last updated:** [August 18, 2025, 5:16pm UTC](https://forum.8thwall.com/t/device-authorization-for-developers/8082 "2025-08-18T17:16:18Z")

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In August 2025, is there a way for my client to view and test a self-hosted project using the API key? I created a staging link for them and I want them to be able to approve before committing to a White Label subscripti…

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## [Unable to validate QR code to activate Developer Mode (Scaniverse Android)](https://forum.8thwall.com/t/unable-to-validate-qr-code-to-activate-developer-mode-scaniverse-android/5838)

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**Author:** [@Ricardo\_Flores](https://forum.8thwall.com/u/Ricardo_Flores)\
**Replies:** 5\
**Last updated:** [May 8, 2025, 11:21pm UTC](https://forum.8thwall.com/t/unable-to-validate-qr-code-to-activate-developer-mode-scaniverse-android/5838 "2025-05-08T23:21:51Z")

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No matter what I try any map QR codes give me page not found on mobile browser. Error starts with “GoException: no routes for location …” Already tried to uninstall app, reconnect account.

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## [My QR code is not working](https://forum.8thwall.com/t/my-qr-code-is-not-working/199)

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**Author:** [@Joel](https://forum.8thwall.com/u/Joel)\
**Replies:** 9\
**Last updated:** [April 9, 2024, 4:15am UTC](https://forum.8thwall.com/t/my-qr-code-is-not-working/199 "2024-04-09T04:15:06Z")

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I printed a QR code on a whole batch of flyers and now the link is showing as a 404. What happened? The event is in 16 hours. Need urgent assistance.

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## [Is there a limit on the amount of devices in Demo Mode?](https://forum.8thwall.com/t/is-there-a-limit-on-the-amount-of-devices-in-demo-mode/712)

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**Author:** [@Juan\_Navarro\_Fennell](https://forum.8thwall.com/u/Juan_Navarro_Fennell)\
**Replies:** 1\
**Last updated:** [March 13, 2024, 7:15pm UTC](https://forum.8thwall.com/t/is-there-a-limit-on-the-amount-of-devices-in-demo-mode/712 "2024-03-13T19:15:28Z")

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I’m working in a little Yes/No experience in 8thWall, but many members of my team can’t react the application, they scan the QR code to be authorize and looks fine, but can’t start the experience. There is any guidance…