[OpenWrt Wiki] Rescue from failed firmware upgrade
openwrt.org › docs › guide-userOpenWrt devices that use a drive-installed image.gz or sdcard.img.gz are not an issue to recover. The OpenWrt OS is not applied to flash ROM, but installed on a removable drive, e.g. an SD-card. For recovery, mount the removable drive in a working PC and reapply the OpenWrt image to the removable drive according to the device-specific instructions.
[OpenWrt Wiki] Using the Image Builder
openwrt.org › additional-software › imagebuilderUsing the Image Builder See also: Image Builder frontends, Using the toolchain, Quick image building guide The Image Builder (previously called the Image Generator) is a pre-compiled environment suitable for creating custom images without the need for compiling them from source. It downloads pre-compiled packages and integrates them in a single flashable image.
OpenWrt Forum Archive
forum.archive.openwrt.org › viewtopicOct 29, 2015 · Image check 'platform_check_image' failed I'll be able to double check this with another Netgear WNDR3700 v1 and a TP-Link TL-WR1043ND v1 this weekend. I've seen a commit in 15.05 post release, don't know if that has anything to do with it.