wrtP54g unbrick restore help Page 2

wrtP54g unbrick restore help Page 2
Links: home · search · speed test · login · more ·

Links: Reply New Topic
Forums » Voice Over IP - VOIP » VOIP Tech Chat » wrtP54g unbrick restore help
page: 1 · 2
boredwild @ 12th Sep 08:03AM:
Re: wrtP54g unbrick restore help

Pretty sure now that I overwrote the bootloader as I started the flash at b00000000 rather than starting at b0020000 (after the bootloader). My backup is no good as it is all FFs because I made it using the generic Debrick commands rather than the Spansion-specific commands. I would be very appreciative if someone would give me a dump of the bootloader of a WRTP54g (20000 bytes from b00000000 -> b0001ffff). Mine is a Vonage, but any provider's bootloader would probably work. I'll just have to match the brand of firmware to the bootloader. Thanks
reply

boredwild @ 11th Oct 09:09PM:
Re: wrtP54g unbrick restore help

Thanks to a generous member, was able to flash my vonage unit with a complete rom dump from an earthlink unit (33 hours via unbuffered JTAG), effectively making it an -ER unit, I guess. Unit will now respond to pings but I can't access the web interface at 192.168.15.1. Is this vonage default web interface IP address different for an earthlink unit? Noticed when editing the -ER image to include the MAC & Serial of my vonage unit, and blanking the crypt key (all FFs), that the -ER image contains 2 serial numbers: one ending in an "A" and one ending in a "B". Presumably these 2 numbers correspond to 2 different firmware images (one a backup) contained on the flash ROM. I entered my serial number the same for both images because its length was the same as the Earthink serials which included the "A" and "B". Could this be the cause of the problem or should I be looking elsewhere?
reply

boredwild @ 30th Oct 08:19AM:
Re: wrtP54g unbrick restore help

Is there any reason why a complete dump of an -ER unit would not work when flashed to a Vonage unit via JTAG? Set the serial number in 2 places where "serialnumber" was followed by 12 digits. Entered my MAC address in the one place where "mac_ap" was followed by "00 01 02 03 04 07", although this seems as though it might be a variable rather than where the MAC address is stored - anyone know how to enter the MAC? I blanked the CRYPT_KEY with "20" (spacebar) as suggested by a fellow member. Does anyone know if this is correct, or if something else like "FF" should be used? Set the ADMIN_PWD to
"AB/PLgjMdnCMg" which is supposed to be a blank password. Unit will respond to pings which is better than it was, but does anyone have any additional suggestions? Thanks.
reply

boredwild @ 2nd Nov 07:25AM:
Re: wrtP54g unbrick restore help

Does anyone have a complete rom dump from a Vonage wrtp54g that they wouldn't mind sharing in an attempt to restore this device of mine? Not willing to give up, but at a bit of a standstill since flashing the Earthlink rom dump to my Vonage unit. Made it a bit less of a brick though as it did restore its response to pings.
Thanks
reply

DaveTap @ 4th Nov 09:13AM:
Re: wrtP54g unbrick restore help

wow sounds like you've got quite a challenge. I've got several ex-vonage WRTP54Gs and an ex-earthlink how do I do the rom dump?
reply

mazilo @ 4th Nov 01:03PM:
Re: wrtP54g unbrick restore help

said by DaveTap :

wow sounds like you've got quite a challenge. I've got several ex-vonage WRTP54Gs and an ex-earthlink how do I do the rom dump?

I have never done this; however, I wouldn't be surprise if you will need a programmer to read the contents of the ROM in order to dump the ROM. IIRC, DogFace05 may be able to do this through his software and remotely, but for a PAP2v1 and/or most first generation of SIPURA ATA devices, i.e. SPA1001, SPA2K, SPA3K, etc. I hope DogFace05 can clarify this.
reply

boredwild @ 28th Nov 09:29PM:
Re: wrtP54g unbrick restore help

Success (for the most part)!
A complete JTAG dump (bootloader&firmware) from an -ER unit can be written to the flash of a wrtp54g Vonage unit. Thanks to Maz, who provided the Earthlink dump, and showed me how to patch in my serial and MAC and blank the admin password for the voice section, I now have a functioning VOIP router. It took about 32 hours to write the image via JTAG. The voice section had a blank password after the restore, but it became locked after I entered my provider's provisioning script. Nevertheless, perhaps this means that a bootloader or complete image from an -NA unit could be written to ANY wrtp54g?

Is there a way to prevent locking of the unit by the provider if they require provisiong via a script?

On another note, a problem has come to light in the voice functionality - lots of background hiss with occasional popping and crackling that makes it nearly unusable; the noise appears much worse on my end than for the other party. Have tried both corded and cordless handsets, and the provider has changed the active phone port to #2, but nothing has helped. Considered that it might be a heat problem, so the unit is out of it's enclosure and resting vertically. Still this has not helped. Results of testing on www.testyourvoip.com indicates that the call quality should be reasonable. Interestingly, a PAP2 adapter provides excellent call quality when run on my internet connection (Motorola cable modem). Is it at all likely that these symptoms are due to the restore, or is it more likely that some internal component is failing (I bought the unit used on ebay)?
I could try a restore using a Vonage JTAG dump if someone on the forums would be so kind as to provide one...
reply

mazilo @ 28th Nov 09:40PM:
Re: wrtP54g unbrick restore help

said by boredwild :

I could try a restore using a Vonage JTAG dump if someone on the forums would be so kind as to provide one...

Before you do this, can you try to unlock this using a modded config.bin approach? Once unlocked, you may want to try to flash it with the same or newer firmware to see if this will eliminate the problem.
reply

ogdensburg @ 1st Dec 10:37AM:
Re: wrtP54g unbrick restore help

I believe this WRTP54G is defective . I have a Vonage RTP300 which has same problem(very loud background noise). You bought a defective unit.

said by boredwild :

lots of background hiss with occasional popping and crackling that makes it nearly unusable

voiplover @ 1st Dec 11:08AM:
Re: wrtP54g unbrick restore help

Low bandwidth between you and the other caller can cause this.
reply

boredwild @ 1st Dec 06:08PM:
Re: wrtP54g unbrick restore help

The noise is present from when the receiver is lifted and is not dependent on being connected to another party. No noise through the voice ports if the voice section is not activated. Thought there was a possibility that the noise was being induced through the power supply, but ogdensburg's comment indicates that there is likely a component failure. Any electronics engineers out there have an idea of where I might go looking for a fault?
reply

voiplover @ 1st Dec 06:52PM:
Re: wrtP54g unbrick restore help

Does the same thing happen on both phone ports?

Check the RJ11 cables and connectors.
Try a different phone.
reply

boredwild @ 1st Dec 09:02PM:
Re: wrtP54g unbrick restore help

Noise is on both ports and occurs when using either a cordless or corded phone plugged directly into the router.
reply