[lime-dev] Don't flash from AirOS 5.6.X to OpenWRT

From AirOS 5.5.X to 5.6.X the size of memories on the flash changes so that flashing OpenWRT (or other non AirOS firmwares) bricks the device. From https://wiki.openwrt.org/toh/ubiquiti/airmaxm "Special Firmware Note: AirOS XM.v5.5.X images used U-Boot 1.1.4.2-s594 (Dec 5 2012 - 15:23:07). The OpenWRT image can be successfully flashed onto these versions of firmware. However, in July 2015 Ubiquiti released a new version of firmware XM.v5.6.X. With this firmware a new U-Boot version was released, U-Boot 1.1.4.2-s956 (Jun 10 2015 - 10:54:50). The newer U-Boot version changes the memory size and starting address for rootfs, cfg, and EEPROM. LOADING AN OPENWRT IMAGE ON A U-Boot 1.1.4.2-s956 WILL CAUSE THE DEVICE TO BE BRICKED!!! If the device has XM.v5.6.X, an older version of XM firmware can be loaded from the AirOS webgui (for example XM.v5.5.10) and U-Boot will be overwritten with the older version. OpenWRT can then be loaded onto the device successfully." Anyway if you have a way for un-bricking such devices let me know, as I have 4 devices bricked this way. There's also a bug report on this problem https://dev.openwrt.org/ticket/20982 Bye, Ilario PS sorry for cross-posting -- Ilario Gelmetti iochesonome(a)gmail.com igelmetti(a)iciq.es ilario.gelmetti(a)estudiants.urv.cat