Siemens Gigaset SE505 v2 working JTAG + backups

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mobilexpert
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Joined: 05 Mar 2009
Posts: 6

PostPosted: Fri Jan 22, 2010 22:28    Post subject: Siemens Gigaset SE505 v2 working JTAG + backups Reply with quote
Hi,

just fixed my SE505 v02,
which died after overclocking to 300MHz ...

first - to give precautions about overclocking,
overclocking works, but just these steps
216MHz, 240MHz and 264MHz (for 266MHz i recommend heatsink on cpu)

my se505 died after overclock to 300MHz ... nvram get corrupted,
so i search over the net and found jtag schematics,
and pictures for connecting


so, after connecting jtag, connected power supply,
and started software,
cleared the nvram ... and all works.

for community purposes, i backed up important parts
(router is with dd-wrt already ...)

here's the output from jtag sw :


C:\1>t -erase:nvram

==============================================
EJTAG Debrick Utility v3.0.1 Tornado-MOD
==============================================

Probing bus ... Done

Instruction Length set to 8

CPU Chip ID: 00010100011100010010000101111111 (1471217F)
*** Found a Broadcom BCM4712 Rev 1 CPU chip ***

- EJTAG IMPCODE ....... : 00000000100000000000100100000100 (00800904)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes
- EJTAG Implementation flags: R4k MIPS32

Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Done
Halting Processor ... <Processor Entered Debug Mode!> ... Done
Clearing Watchdog ... Done

Probing Flash at (Flash Window: 0x1fc00000) ...
Done

Flash Vendor ID: 00000000000000000000000000100000 (00000020)
Flash Device ID: 00000000000000000010001011001011 (000022CB)
*** Found a ST 29w320DB 2Mx16 BotB (4MB) Flash Chip ***

- Flash Chip Window Start .... : 1fc00000
- Flash Chip Window Length ... : 00400000
- Selected Area Start ........ : 1fff0000
- Selected Area Length ....... : 00010000

*** You Selected to Erase the NVRAM.BIN ***

=========================
Erasing Routine Started
=========================
Total Blocks to Erase: 1

Erasing block: 67 (addr = 1fff0000)...Done
=========================
Erasing Routine Complete
=========================
elapsed time: 0 seconds


*** REQUESTED OPERATION IS COMPLETE ***



thanx to all

b.r.
Alexadar



jtag-2.JPG
 Description:
jtag soldered on board ...
 Filesize:  193.61 KB
 Viewed:  14412 Time(s)

jtag-2.JPG



se505_jtag.gif
 Description:
se505 jtag schematics
 Filesize:  11.93 KB
 Viewed:  14417 Time(s)

se505_jtag.gif



se505_backup.rar
 Description:
CFE, BSP, Kernel

Download
 Filename:  se505_backup.rar
 Filesize:  2.99 MB
 Downloaded:  882 Time(s)

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gadget_theone
DD-WRT Novice


Joined: 14 Apr 2010
Posts: 3

PostPosted: Wed Apr 14, 2010 22:06    Post subject: Reply with quote
Dear mobilexpert,

Great work!

I was using original fw (v2.01) in my SE505 V2 router, today I decided to update fw to original version 3.02, but unfortunatelly my power light is blinking now...and router's not working anymore!

Tomorrow I'll make Jtag cable and follow your procedures, as I really want my Se505 router to be alive :)

By the way...Is dd-wrt Fw better then stock one?
Is there any possibility to restore original Se505 fw?

Many thanks in advance!
Regards and please apologise for my English.
The one
mobilexpert
DD-WRT Novice


Joined: 05 Mar 2009
Posts: 6

PostPosted: Fri Aug 06, 2010 5:51    Post subject: Reply with quote
sorry for late reply,

well, it's definatly better than stock firmware,
at least for me.

currently i'm using it as AP,
to provide internet and local network resources,
to my few laptops and few neighbours,
and i must say, it works flawless.

it has client signals measure and detailed
wireless settings.

of course, dont expect miracles from it.

i use mikrotik RB750 as main router,
and bandwidth limiting on it.

it's very good combination.

very soon, i will get another SE505,
to try bridge mode, and some other functions,
as throughput, and modding it, adding external antennas,
also will do some field testing (outdoor),
and hopefuly, will post results.

b.r.
Alex
marcelgoettel
DD-WRT Novice


Joined: 28 Jan 2011
Posts: 3

PostPosted: Fri Feb 04, 2011 15:59    Post subject: Where can I download the Debrick Utility Reply with quote
Where can I download the Debrick Utility or what software are you using?
frater
DD-WRT Guru


Joined: 07 Jun 2006
Posts: 2777

PostPosted: Fri Feb 04, 2011 16:50    Post subject: Reply with quote
Nice work....

But what in the world made you decide to use SMD-resistors in this setup?

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osmi
DD-WRT Novice


Joined: 04 Feb 2010
Posts: 3

PostPosted: Sat Feb 12, 2011 11:20    Post subject: Reply with quote
mobilexpert wrote:
sorry for late reply,

well, it's definatly better than stock firmware,
at least for me.

currently i'm using it as AP,
to provide internet and local network resources,
to my few laptops and few neighbours,
and i must say, it works flawless.

it has client signals measure and detailed
wireless settings.

of course, dont expect miracles from it.

i use mikrotik RB750 as main router,
and bandwidth limiting on it.

it's very good combination.

very soon, i will get another SE505,
to try bridge mode, and some other functions,
as throughput, and modding it, adding external antennas,
also will do some field testing (outdoor),
and hopefuly, will post results.

b.r.
Alex


Alex, could you tell me if the WDS LAN function is working on SE505?
I have Wndr 3700 with DD-WRT and i would try to connect it with SE505(if i´ll managed to upload dd-wrt).
mobilexpert
DD-WRT Novice


Joined: 05 Mar 2009
Posts: 6

PostPosted: Sun Nov 23, 2014 19:37    Post subject: Reply with quote
frater wrote:
Nice work....

But what in the world made you decide to use SMD-resistors in this setup?


well ... It was late night probably, and I ran out of normal resistors, so I took some cell phone or something, took it off with hot-air soldering gun,
and made it to play with this router ...
(I work with micro-smd all the day - cell phone repair).

b.r.
Alex
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