OpenWRT: Flash Linksys E900

Hardware Information CPU Broadcom BCM5357 CPU Speed 300 MHz Flash ROM 8 MB RAM 32 MB Radio 2.4 GHz WLAN Support b/g/n WLAN Max Speed 300 mbps Antenna Location Internal MIMO Config 2 Transmit x 2 Receieve Switch 4x 10/100 LAN + 1 10/100 WAN USB Port None

[edit] Flashing instructions for the E900

Forgive me, masters... I used straight cable instead of cross, no wonder I never able to tftp between my PC and the linksys router. For anybody face the same problem:

1. Set ethernet ip address of your pc ---> sudo ifconfig eth0 192.168.1.2
2. Connect your PC ethernet cable port and the router ethernet (not internet) port using cross cable
3. Reboot your router to CFE mode using serial console, press ctrl+C repetitively right after you plug in power to the router
4. Set ethernet ip address of your router ifconfig eth0 192.168.1.1
    Now you should've been able to ping between devices
5. In the CFE prompt, type --> upgrade code.bin
6. In your PC, set tftp server
        tftp IPv4.x.y.z
        tftp> binary
        tftp> rexmt 1
        tftp> timeout 60
        tftp> trace
        Packet tracing on.
        tftp> put code.bin
7. Voila, your router should have receive the packet and continue to install it. After finished and you see success message, enter ---> reboot

P.S. I use the router original firmware

After using the trailed build file for the initial flash (yes the file with the router name in it) only use nv64k builds to upgrade with or you will brick your unit. Don't confuse this unit with some of the other Linksys E-Series units that use nv60k builds, this one uses nv64k builds!

   Read the Peacock Announcement carefully.
   Disconnect all cables and wireless clients.
   Do a 30/30/30 reset on router
   Connect 1 Lan cable to pc doing the flash.
   Log into Linkysys Web Interface Firmware Upgrade page at 192.168.1.1 and flash the firmware E900 Trailed Initial Flash Build
   Wait 5 minutes to assure flash integrity.
   Power cycle by unplugging the E900 for 10 seconds.
   Plug the E900 back in and wait about 2 minutes until it finishes booting.
   Do a 30/30/30 reset on router. Another power cycle may be required after hard reset as noted by some forum users.
   Wait 3 minutes and log into web interface.
   You are done. 

   After the initial flash - should you want to flash to a build with more features you can use a k2.6 nv64k BIG or mega build or any of the other build flavors that are of your liking for features. 

   For upgrading to a newer build you can follow these steps: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=176523 

ftp://ftp.dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/2013/05-27-2013-r21676/broadcom_K26/dd-wrt.v24-21676_NEWD-2_K2.6_big-nv64k.bin [edit] Build information

As noted in bold at the beginning of the flashing instructions, only use builds with nv64k in the name for upgrading - otherwise follow the initial flash instructions above if you are going from stock to dd-wrt, any other builds for upgrading an exsisting dd-wrt install without nv64k in the name will brick your router! This unit was supported with build 18946 or greater, this means you cannot use a build with a number lesser than 18946. For the safest results, use builds that are linked within this wiki as they have most likely been forum tested with ok reported results.

To find the latest builds, you can browse the DD-WRT file server and look for the broadcom_K26 folder, in there is the appropriate for your unit. Be aware that these are beta test builds and should be used with caution!

ftp://ftp.dd-wrt.com/others/eko/BrainSlayer-V24-preSP2 [edit] Reverting to stock firmware

It has been asked about: "how do i revert back to stock firmware?" and the answer is download the stock firmware image from the manufacturer's website, reset the router back to defaults using a 30-30-30 hard reset, then flash the stock image from within the dd-wrt webgui. After 5 minutes it should finish, you will then need to do another 30-30-30 reset and then access the stock webgui @ 192.168.1.1

You can also download the OEM firmware here:

http://www.dd-wrt.com/phpBB2/download.php?id=23644 [edit] Useful Links

Here is the link for the forum discussion thread regarding the E900:

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=152924

Referensi

• http://www.dd-wrt.com/wiki/index.php/Linksys_E900