| reply to N6EA
Re: WRTP54G-ER JTAG Unlock using windows I just got a WRTP54G-ER from Fry's. I wanted to check if this one is good or not, so I just hooked it up with my Comcast cable modem and computer, just using it as a normal router. It only worked for a few minutes, and then did not show any internet connection. I noticed that the firmware has been upgraded from 1.0.48 to 3.1.14 without any notification by itself.
Can I still use JTAG cable to unlock this router now with Firmware 3.1.14 from earthlink? Or, should I just return it to Fry's? Thanks a lot for any suggestion! |
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| Yes, you can still use JTAG to unlock it. In fact the last one I bought came with 3.1.14 and I could unlock it using JTAG. |
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| Thanks a lot. But I kept getting a message like this and I cannot have access to 192.168.15.1. Anyone can offer a clue? Many thanks!
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c:\wrtp54g>wrt54g -backup:custom /window:b0000000 /start:b07c0000 /length:000400
00 /nodma /skipdetect /instrlen:05 /fc:55 /silent
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WRT54G/GS EJTAG Debrick Utility v4.5
====================================
Probing bus ... Done
Instruction Length set to 5
CPU Chip ID: 00000000000001000001000000001111 (0004100F)
*** CHIP DETECTION OVERRIDDEN ***
- EJTAG IMPCODE ....... : 00000000000000000000000000000000 (00000000)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes
*** DMA Mode Forced Off ***
Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Done
Halting Processor ... ... Done
Clearing Watchdog ... ^C |
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| Got my problem solved. It was caused by long wires without shielding. Short wires worked immediately.
I used a scheme which combines MAPS, Fixup, Voiceipuse and VOiplover's:
(1) Parallel cable's 18~25 are connected together at port side (it was like that), the other side is connected with JTAG pin#12, Serial pin GND (Most Right Side)
(2) JAG pin#1 + 100Ohm + JTAG pin#14
The others are the same.
Thanks a lot for all the information providers! You guys have done a great thing! |
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