WRT54GL Power LED is flashing

Discussion in 'Modding Forum' started by tom69, Nov 1, 2007.

  1. tom69

    tom69 LI Guru Member

    the power led is flashing all the time.

    I read a lot of in different forum. I build a JTAg cable and tried to connect to the router with the WRT54G/GS EJTAG Debrick Utility v4.8 and all what i get is the message


    WRT54G/GS EJTAG Debrick Utility v4.8


    Probing bus ... Done

    Instruction Length set to 5

    CPU Chip ID: 11111111111111111111111111111111 (FFFFFFFF)

    *** Unknown or NO CPU Chip ID Detected ***

    *** Possible Causes:

    1) WRT54G/GS is not Connected.

    2) WRT54G/GS is not Powered On.

    3) Improper JTAG Cable.

    4) Unrecognized CPU Chip ID.

    I fear the the router is death

    The cable is ok.

    Is there another way to debrick the router??

  2. HennieM

    HennieM Network Guru Member

  3. tom69

    tom69 LI Guru Member

    my JTAG cable
    4 x 100 Ohm

    connector 25 pins

    20, 25 GND
    2 red (100 Ohm)
    3 black (100 Ohm)
    4 brown(100 Ohm)
    13 grey (100 Ohm)

    Attached Files:

  4. tom69

    tom69 LI Guru Member

    my JTAG cable

    Connector 12 pins, my connector have 14 pins, look from the right side

    11 nor used
    9 black
    7 brown
    5 grey
    3 red
    1 not used
    (pin left from 1 is also not used)

    All pins from the other side of the connector is GND

    Is the cable correct?

    Attached Files:

  5. barryware

    barryware LI Guru Member

    Did you install the "giveio.sys" driver? jtag won't work without that installed.

    If only your power light is flashing and the port lights are not all lit, you can probably recover without jtag.

    If you get your jtag working, DO NOT erase the cfe or wholeflash unless you have a working cfe to put back. The cfe has the mac's embedded so they are hard to find.
  6. irootsk

    irootsk Addicted to LI Member

    tom - probably you already sort out your problem. If not, you can use my debricking pack made from parts from other user. I managed to unbrick mine WRT54GL v1.1
    In package is also HowTo in txt format. Good luck
    Downlod id from here.
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