You can now flash your Meraki paperweights with OpenWrt and bring them back to life. Woop. Huzza.

Us lot at Cucumber WiFi, have put together a precompiled version so you can carry on cloud-managing it.

Currently we support the MR12 and MR16. MR18 coming soon.

Here's the guide:

http://docs.cucumberwifi.io/article/213-installing-cucumber-on-cisco-meraki

Let me know how you get on!