Difference between revisions of "De Brick or Un Bricking a WRT Series Router"
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(Created page with "This article was written for the WRT32X. The WRT3200ACM and various iterations of the WRT1900AC, WRT1900ACS, etc. are similar. The intent is to save a router and make it use...") |
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There are certain assumptions made (and not covered) in this article | There are certain assumptions made (and not covered) in this article | ||
* Serial / TTL access has been connected / configured / setup, etc. (Remember, this router has a connector for Serial / TTL output which gives full command line access to the router without needing network connectivity) | *Serial / TTL access has been connected / configured / setup, etc. (Remember, this router has a connector for Serial / TTL output which gives full command line access to the router without needing network connectivity) | ||
* The U-Boot / Das Boot (Marvell Version of them that is) is functional | *The U-Boot / Das Boot (Marvell Version of them that is) is functional | ||
* A TFTP Server is available and functional on the same network as the router | *A TFTP Server is available and functional on the same network as the router | ||
== Recovery == | ==Recovery== | ||
* Enter the U-Boot command line in the three second boot pause window: Start pressing enter when you see the initial boot up message and the line that shows "MMC: mv_sdh:0" (about 2 seconds after turning the router on) | *Enter the U-Boot command line in the three second boot pause window: Start pressing enter when you see the initial boot up message and the line that shows "MMC: mv_sdh:0" (about 2 seconds after turning the router on) | ||
* Below is the typical output from a WRT32X as it boots up | *Below is the typical output from a WRT32X as it boots up | ||
<syntaxhighlight lang="text"> | <syntaxhighlight lang="text"> | ||
BootROM - 1.73 | BootROM - 1.73 | ||
| Line 66: | Line 66: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
* Get the proper firmware file; | |||
** Start Here: https://downloads.openwrt.org/releases/ | |||
** Pick a firmware version version (usually the latest one, 21.02.0 as of the writing of this article) | |||
** Navigate through the Directories: targets, mvebu (which stands for something like Marvell Business Unit), corexa9 (the SoC technology the WRT32X is based on) | |||
** Select the SquashFS - Factory Image - IMG Firmware File (openwrt-21.02.0-mvebu-cortexa9-linksys_wrt32x-squashfs-factory.img as of this writing) | |||
* Set the IP Address of the Router: setenv ipaddr 192.168.1.1 (the IP Address is just an example, and is also the default) | |||
* Set the IP Address of the TFTP Server: setenv serveip 192.168.1.254 (the IP Address is just an example, and is also the default) | |||
* Set the name of the firmware image file: setenv venom.img (it can be any name, including the default one from OpenWRT) | |||
* Run the "installation script": run update_both_images (The update_both_images "script" is actually an environmental variable set by LinkSys in the U-Boot partition stored on the router's "disk drive" (AKA NAND memory))<br /> | |||
== Special Thanks To... == | ==Special Thanks To...== | ||
Usori's post was the 'starting hint': https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=311272&view=next&sid=f4fceb306811c819d84fc1c6a1d34fc0<nowiki/>(...it wasn't a step by step set of instructions from him, but he included all the command line output, which was enough of a hint, specifically the line(s) right after "MMC: mv_sdh: 0, Venom>> | Usori's post was the 'starting hint': https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=311272&view=next&sid=f4fceb306811c819d84fc1c6a1d34fc0<nowiki/>(...it wasn't a step by step set of instructions from him, but he included all the command line output, which was enough of a hint, specifically the line(s) right after "MMC: mv_sdh: 0, Venom>> | ||
== An Oddity Worth Noting == | ==An Oddity Worth Noting== | ||
It cannot be an coincidence that the WRT32X, black in color with a code name of "Venom" and a SoC from Marvell, isn't somehow named after the 2018 Marvel movie, Venom. | It cannot be an coincidence that the WRT32X, black in color with a code name of "Venom" and a SoC from Marvell, isn't somehow named after the 2018 Marvel movie, Venom. | ||