Linksys E4200

From DD-WRT Wiki

(Difference between revisions)
Jump to: navigation, search
Revision as of 09:35, 16 April 2011 (edit)
Picchioni (Talk | contribs)
(Warnings)
← Previous diff
Revision as of 09:36, 16 April 2011 (edit) (undo)
Picchioni (Talk | contribs)
(Warnings)
Next diff →
Line 49: Line 49:
* The e4200 is very sensitive to the nvram size. The only safe nvram size identified for this router is an nvram size of 60kB. Recovery from a firmware with the wrong nvram size requires use of a jtag cable to erase the nvram.<sup>1</sup> * The e4200 is very sensitive to the nvram size. The only safe nvram size identified for this router is an nvram size of 60kB. Recovery from a firmware with the wrong nvram size requires use of a jtag cable to erase the nvram.<sup>1</sup>
 +
 +=== Flashing Process ===
* Perform these steps when flashing from the stock linksys GUI: * Perform these steps when flashing from the stock linksys GUI:

Revision as of 09:36, 16 April 2011

Contents

Hardware Specifications

Image:e4200.jpg


CPU Broadcom BCM4718
CPU Speed 480 MHz
Flash ROM 16 MB
Macronix MX25L12845E
RAM 64 MB
Radios 2.4 GHz, 5 GHz
WLAN Support a/b/g/n
WLAN Max Speed 450 mbps
Antenna Location Internal (x6)
Bands 3 x 3
Switch 4x GigE + 1 WAN
Broadcom 53115
IEEE 802.3/3u/3ab
USB 1x USB 2.0

Radio wl0 is Broadcom 4718 (SoC)


Radio wl1 is Broadcom 4331 Intensi-fi Single-Chip 802.11n Transceiver

Flashing

Warnings

  • The e4200 is very sensitive to the nvram size. The only safe nvram size identified for this router is an nvram size of 60kB. Recovery from a firmware with the wrong nvram size requires use of a jtag cable to erase the nvram.1

Flashing Process

  • Perform these steps when flashing from the stock linksys GUI:
  1. Disconnect all cables and wireless clients.
  2. Perform a 30/30/30 reset on the device.
  3. Flash the latest E4200 specific mini build (dd-wrt.v24-<build number>_NEWD-2_K2.6_mini-e4200.bin) to the router.
  4. Wait approximately 5 minutes for the flashing process to complete.
  5. Perform a 30/30/30 after the device has successfully updated.
  6. Flash to larger build of your choosing (Mega, Big, std_usb_nas, OpenVPN, VoIP.)
    • WARNING Only flash -nv60k builds, flashing anything else to the router will brick it as noted above (dd-wrt.v24-<build number>_NEWD-2_K2.6_<build type>-nv60k.bin)
  7. If flashing to another build always perform a 30/30/30 before and after flashing.

References

  1. e4200 build thread at dd-wrt forum
  2. FCC disclosures