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Linksys E4200 Serial Pinout

Rs232 serial pinout

Apr 10, 2018 - Hi All I have a Linksys E4200 Router which got brick once i tried to update its firware Wirelessly. Now its getting powered ON, Cisco Logo is.

Broadcom Broadcom Broadcom Broadcom Qualcomm Qualcomm For a list of all currently documented Broadcom chipsets with specifications, see. AC1200 DualBand Smart Wi-Fi Wireless Router. 'P/N: 110J REV:01', 'RoHS', and the new Linksys logo appears to be silkscreened on the board in the FCC photos. (as of ) Reviews.

Probable used PSU(s) The FCC docs show two differing power supplies. Asian Power Devices WA-24E12FU (fixed plug). Asian Power Devices WA-24E12 (interchangable plug) Asian Power Devices WA-24E12FU Input: 100 -240 VAC, 0.65 A Input connector: NEMA-15P Style: large, vertical Manuf. In: China Eff.

Level: 5 Output: 12 VDC, 2 A Output connector: barrel ( center +) OD:?? Asian Power Devices WA-24E12 Input: 100 -240 VAC, 0.65 A Input connector: NEMA-15P (removable) Style: large, vertical Manuf.

In: China Output: 12 VDC, 2 A Output connector: barrel ( center +) OD:??

Platform Serial Num. FCC ID = CPU Type = Broadcom BCM4717A1KFBG (BCM4717A) MIPS Rev = R2 CPU Speed = 354MHz Bus =? Flash Type = Serial Flash Chip = MX 25L6405DMI-126 Flash Size = 8MB Max Firmware Size = 7995392 bytes RAM Size = 32MB RAM Chip = hynix HY5DU561622FTP-U41 nvram Size = 60k Switch = Broadcom BCM53115 Port-based vlan = 802.1q vlan =?

Usb

Ethernet Port Count = 1-10/100/1000 WAN 4-10/100/1000 LAN Wired Standard = IEEE 802.3/3u/3ab bootwait =? Bootloader = CFE Flash Card Socket/Type = No SD/MMC Mod Support = No MiniPCI slots = No PoE = No Power = 12V/1A Color of LEDs =? Size = 7.95' x 6.3' x 1.34' USB = No Serial Port = Yes JTAG Port = Yes Supported by TJTAG 3.02 =? As of July 2010 you can only use the trailed builds with the e2000 name in it for initial flashing and nothing else, using other bin's without the e2000 name in it for initial flashing may result in a bricked unit!

After you have dd-wrt installed to your unit, you can then use the e2k-e3k.bin's for upgrading to newer builds. 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 Web Interface and flash the firmware. Wait 5 minutes until WAN light turns on. Power cycle by unplugging E2000 for 30 secs.

Plug E2000 back in and wait about 5 minutes until it finishes booting. Do a 30/30/30 reset on router. Wait 3 minutes and log into web interface. DD-WRT E2000 Build information The latest builds for this unit can be currently found in the FTP. Support was added in 14826 and on.

Brainslayer added E2000 Support from 14929 and on and builds are to be found in the broadcomK26 folder of his build branch. Also it has been asked about the builds with e2k-e3k name in them, these builds are for if you already have those units flashed with dd-wrt, you can simply use one of those builds to upgrade, but the initial flash should always be done with the trailed build (build with the unit only name in it) linked above. If dd-wrt is already on the router follow these instructions. If stock firmware is on the router follow the instructions. Check for recommended builds first. Set your computer to a static IP of 192.168.1.7.

(or to whatever subnet the router is on) Disable all firewalls and security. Disable wireless on your computer and only have the router connected to the flashing computer by the ethernet cable between the two. (If the router supports it, if not, reset to defults in the GUI) prior to flashing.

Check for password page on re-login and change password. Flash firmware.

You can use the webgui except if you have a belkin router. (For belkin use tftp.exe to flash).

Wait.at least three minutes. Lights should return to normal. See important2, below. Failing to wait is how most people brick their routers. Do a power cycle of the router. (Unplug the cord, count to 30 and plug it back in.).

Wait for the lights to return to normal usually about 2 minutes. again (If the router supports it, if not, reset to defults in the GUI). Check for the password page and re-login to change the password.

Then you can reconfigure your settings manually. Once configured set your computer back to autoIP and autoDNS. Important1: This works fine for Asus router, but you do have to power cycle after the reset. Important2: After you flash the firmware, and before you do the hard reset, the router will be building some nvram settings. YOU MUST WAIT FOR THIS TO FINISH PRIOR TO DOING ANYTHING WITH THE ROUTER INCLUDING A HARD RESET. Usually, you can tell when this process is completed by the WAN light coming on, but it does take several minutes.

Go have a beer. There are starting to be more and more people who BRICK their routers by not waiting until the nvram is rebuilt, PRIOR to doing a hard reset.

YOU NEED TO WAIT! To revert back to stock firmware from dd-wrt do the following steps. Go to Linksys support site and download the latest stock E2000 firmware image. From within the dd-wrt webgui go to Administration Factory Defaults, and reset to factory defaults.

Once you router has reset to factory defaults, set a static ip on your machine to 192.168.1.6 and access the webgui @. It should prompt you to set a user/password, do so, then from the webgui, go to Administration Firmware Upgrade. Select to reset to defaults on the drop down menu and then browse to the stock firmware image for the E2000, select the file and flash. Wait 5 mins from flashing, then do a 30-30-30 reset and login again @ and begin your config on stock firmware. Should you want to use DHCP you will need to then unset your static ip on your machine. JTAG/Serial Info JTAG. Serial Pinouts We use JP3 which is on the opposite side of the component side to make serial connection.

Linksys E4200 Setup

VCC 1 o TX 2 o RX 3 o N/C 4 o GND 5 o Hyper terminal Setup in Windows XP In Windows XP, Click Start Button - All Programs - Accessories - Communication - HyperTerminal Enter a name for the connection, Click ok Choose com port you adapter is plugged into, Click ok Set: Bits per second = 115200 Data Bits = 8 Parity = none Stop bits = 1 Flow control = none Click ok Click File - Save As, and select a place to save it to so you don't have to enter the settings again. Putty Setup in Windows XP After installing putty, run it Serial line = The COM port your using for serial (ie. COM3) Speed = 115200 Click on Serial under Connection Serial line to connect to = same as above (Serial line) Speed (baud) = 115200 Data bits = 8 Stop bits = 1 Parity = None Flow control = None Click Session Enter a name for your connection under saved sessions Click Save Click Open Serial Recovery This section is in need of Serial Recovery Instructions!