[Solved] Debrick TL-WDR3600

topsbr · October 28, 2019, 11:23pm

Hello people...

How are you???
Over here, excellently well ...

So, I came back to tell you all that I was able to restore my WDR3600's wireless functionality with the link I posted above ...

The command output returns me the following now:

root@OpenWrt:~# cat /dev/mtd4 | hexdump -C
00000000  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
*
00001000  02 02 00 02 03 04 05 06  00 30 3a 30 32 3a 30 33  |.........0:02:03|
00001010  3a 30 34 3a 30 35 3a 30  36 00 00 00 00 00 1f 00  |:04:05:06.......|
00001020  33 02 00 00 00 00 04 00  2c 00 4d 02 03 00 08 ff  |3.......,.M.....|
00001030  60 01 00 00 00 10 01 00  00 ee ee 0e 00 10 00 10  |`...............|
00001040  00 10 00 1b 1b 1b 0c 0c  0c 1f 00 a4 00 00 00 00  |................|
00001050  ff 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00001060  0e 0e 03 00 2c e2 00 02  0e 1c e0 e0 00 0c e0 e0  |....,...........|
00001070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00001080  00 00 00 00 00 00 00 00  00 00 70 89 a2 08 00 7c  |..........p....||
00001090  00 00 00 07 00 7d 00 00  00 06 00 7d 00 00 00 0b  |.....}.....}....|
000010a0  00 80 00 00 00 0a 00 81  00 00 00 0a 00 81 00 00  |................|
000010b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000010c0  00 00 00 70 ac 70 89 ac  70 89 ac 7a 93 a2 26 26  |...p.p..p..z..&&|
000010d0  26 26 26 26 26 26 26 26  24 20 26 26 24 20 26 26  |&&&&&&&&$ &&$ &&|
000010e0  24 20 24 24 24 22 20 1e  24 21 20 1c 20 20 1c 14  |$ $$$" .$! .  ..|
000010f0  24 24 24 22 20 1e 24 21  20 1c 20 20 1c 14 24 24  |$$$" .$! .  ..$$|
00001100  24 22 20 1e 24 21 20 1c  20 20 1c 14 22 22 22 20  |$" .$! .  ..""" |
00001110  1e 1c 22 20 1e 1a 20 20  1c 14 22 22 22 20 1e 1c  |.." ..  ..""" ..|
00001120  22 20 1e 1a 20 20 1c 14  22 22 22 20 1e 1c 22 20  |" ..  ..""" .." |
00001130  1e 1a 20 20 1c 14 11 12  15 17 41 42 45 47 31 32  |..  ......ABEG12|
00001140  35 37 70 75 a2 b8 70 75  a2 b8 70 75 a2 b8 7a 7f  |57pu..pu..pu..z.|
00001150  98 b8 70 75 ac b8 70 75  ac b8 70 75 ac b8 70 75  |..pu..pu..pu..pu|
00001160  ac b8 70 75 ac b8 70 75  ac b8 70 75 ac b8 7a 7f  |..pu..pu..pu..z.|
00001170  a2 b8 20 5e 1e 5e 1c 64  1c 5c 1c 64 1c 5c 14 5e  |.. ^.^.d.\.d.\.^|
00001180  18 58 3c 7c 3c 7c 3c 7c  3c 7c 3c 7c 3c 7c 3c 7c  |.X<|<|<|<|<|<|<||
00001190  3c 7c 1c 5c 1c 5c 1c 5c  1c 5c 1c 5c 1c 5c 1c 5c  |<|.\.\.\.\.\.\.\|
000011a0  1c 5c 10 01 00 00 22 22  02 00 00 00 00 00 00 00  |.\....""........|
000011b0  00 00 00 00 00 00 40 00  00 00 00 00 00 ff 00 00  |......@.........|
000011c0  00 00 00 00 00 00 00 00  00 00 00 00 0f 0e 0e 03  |................|
000011d0  00 2d e2 00 02 0e 1c 00  00 00 00 00 00 00 00 00  |.-..............|
000011e0  00 00 00 00 00 00 00 00  00 3a 52 00 00 00 00 00  |.........:R.....|
000011f0  00 00 00 00 00 00 00 4c  54 68 78 8c a0 b9 cd 00  |.......LThx.....|
00001200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00001280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 4c  |...............L|
00001290  5c 68 8c a0 b4 bd cd 4c  5c 68 8c a0 b4 bd cd 4e  |\h.....L\h.....N|
000012a0  5e 66 8e 9e ae bf c7 26  26 1e 1c 26 26 1e 1c 26  |^f.....&&..&&..&|
000012b0  26 1e 1c 26 26 1e 1c 26  26 1e 1a 26 26 1e 1a 26  |&..&&..&&..&&..&|
000012c0  26 1e 18 26 26 1e 18 26  26 24 1c 1a 18 24 1a 18  |&..&&..&&$...$..|
000012d0  16 00 00 00 00 26 26 24  1a 18 16 24 18 16 14 00  |.....&&$...$....|
000012e0  00 00 00 26 26 24 1a 18  16 24 18 16 14 00 00 00  |...&&$...$......|
000012f0  00 26 26 24 1a 18 16 24  18 16 14 00 00 00 00 26  |.&&$...$.......&|
00001300  26 24 1a 18 16 24 18 16  14 00 00 00 00 26 26 24  |&$...$.......&&$|
00001310  14 14 14 24 12 12 12 00  00 00 00 26 26 24 14 14  |...$.......&&$..|
00001320  14 24 12 12 12 00 00 00  00 24 24 22 14 14 14 22  |.$.......$$"..."|
00001330  12 12 12 00 00 00 00 26  26 24 1a 18 16 24 18 16  |.......&&$...$..|
00001340  14 00 00 00 00 24 24 22  18 16 14 22 16 14 12 00  |.....$$"..."....|
00001350  00 00 00 24 24 22 18 16  14 22 16 14 12 00 00 00  |...$$"..."......|
00001360  00 24 24 22 18 16 14 22  16 14 12 00 00 00 00 24  |.$$"...".......$|
00001370  24 22 18 16 14 22 16 14  12 00 00 00 00 24 24 22  |$"...".......$$"|
00001380  12 12 12 22 10 10 10 00  00 00 00 24 24 22 12 12  |...".......$$"..|
00001390  12 22 10 10 10 00 00 00  00 24 24 22 12 12 12 22  |.".......$$"..."|
000013a0  10 10 10 00 00 00 00 10  16 18 40 46 48 30 36 38  |..........@FH068|
000013b0  4c 54 68 78 8c a0 b9 cd  4c 54 68 78 8c a0 b9 cd  |LThx....LThx....|
*
000013f0  4c 54 68 78 8c a0 b9 cd  3c 7c 3c 7c 3c 7c 3c 7c  |LThx....<|<|<|<||
00001400  3c 7c 3c 7c 3c 7c 3c 7c  3c 7c 3c 7c 3c 7c 3c 7c  |<|<|<|<|<|<|<|<||
*
00001440  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
*
00005000  02 02 00 02 03 04 05 06  00 00 00 00 00 00 00 00  |................|
00005010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 1f 00  |................|
00005020  33 01 00 00 00 00 04 00  48 00 4d 04 03 00 08 ff  |3.......H.M.....|
00005030  00 00 00 00 00 10 01 00  00 22 22 02 00 50 01 50  |.........""..P.P|
00005040  01 50 01 00 00 00 00 00  00 24 00 00 00 00 00 00  |.P.......$......|
00005050  ff 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00005060  0e 0e 03 00 2c e2 00 02  0e 1c 80 c0 80 0c 80 c0  |....,...........|
00005070  80 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00005080  00 00 00 00 00 00 00 00  00 00 70 89 ac 00 00 00  |..........p.....|
00005090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000050c0  00 00 00 70 b8 70 89 ac  70 89 ac 70 89 ac 24 24  |...p.p..p..p..$$|
000050d0  24 24 24 24 24 24 20 20  1c 18 20 20 1c 18 20 20  |$$$$$$  ..  ..  |
000050e0  1c 18 20 20 20 20 1c 14  20 20 1c 14 20 20 1c 14  |..    ..  ..  ..|
000050f0  20 20 20 20 1c 14 20 20  1c 14 20 20 1c 14 20 20  |    ..  ..  ..  |
00005100  20 20 1c 14 20 20 1c 14  20 20 1c 14 20 20 20 20  |  ..  ..  ..    |
00005110  1c 14 20 20 1c 14 20 20  1c 14 20 20 20 20 1c 14  |..  ..  ..    ..|
00005120  20 20 1c 14 20 20 1c 14  20 20 20 20 1c 14 20 20  |  ..  ..    ..  |
00005130  1c 14 20 20 1c 14 11 12  15 17 41 42 45 47 31 32  |..  ......ABEG12|
00005140  35 37 70 75 9d a2 70 75  a2 ff 70 75 a2 ff 7a 7f  |57pu..pu..pu..z.|
00005150  93 98 70 75 ac b8 70 75  ac 00 70 75 ac 00 7a 7f  |..pu..pu..pu..z.|
00005160  93 a2 70 75 ac 00 70 75  ac 00 70 75 ac 00 7a 7f  |..pu..pu..pu..z.|
00005170  93 a2 3c 7c 3c 3c 3c 7c  3c 3c 7c 3c 3c 7c 7c 3c  |..<|<<<|<<|<<||<|
00005180  00 00 3c 7c 3c 3c 3c 7c  3c 3c 3c 7c 7c 3c 3c 7c  |..<|<<<|<<<||<<||
00005190  3c 3c 3c 7c 3c 3c 3c 7c  3c 3c 3c 7c 7c 7c 3c 7c  |<<<|<<<|<<<|||<||
000051a0  7c 7c 10 01 00 00 22 22  02 00 10 00 10 00 10 00  |||....""........|
000051b0  19 19 19 12 12 12 4e 00  8c 00 00 00 00 ff 00 00  |......N.........|
000051c0  00 00 00 00 00 00 00 00  00 00 00 00 0f 0e 0e 03  |................|
000051d0  00 2d e2 00 02 0e 1c e0  e0 f0 0c e0 e0 f0 6c 00  |.-............l.|
000051e0  00 00 00 00 00 00 00 00  00 41 56 15 16 15 0b 0b  |.........AV.....|
000051f0  0b 1c 1b 18 0b 0b 0b 4c  58 68 8c a4 b4 bd cd f1  |.......LXh......|
00005200  00 a1 00 00 00 f6 00 9f  00 00 00 fb 00 a0 00 00  |................|
00005210  00 00 00 a0 00 00 00 ff  00 a0 00 00 00 fd 00 a1  |................|
00005220  00 00 00 fa 00 a0 00 00  00 f6 00 a1 00 00 00 e4  |................|
00005230  00 9f 00 00 00 e9 00 a1  00 00 00 ef 00 a1 00 00  |................|
00005240  00 f7 00 a1 00 00 00 f7  00 a1 00 00 00 f6 00 a0  |................|
00005250  00 00 00 f2 00 a1 00 00  00 ed 00 a0 00 00 00 00  |................|
00005260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00005280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 4c  |...............L|
00005290  58 68 78 8c a0 b4 cd 4c  54 68 8c a0 b4 bd cd 4e  |Xhx....LTh.....N|
000052a0  56 66 8e 96 ae bf c7 20  20 1e 1a 20 20 1e 1a 20  |Vf.....  ..  .. |
000052b0  20 1e 1a 20 20 1e 1a 20  20 1e 1a 20 20 1e 18 20  | ..  ..  ..  .. |
000052c0  20 1e 18 20 20 1e 18 20  20 20 1e 1c 1a 20 1c 16  | ..  ..   ... ..|
000052d0  16 16 16 16 14 20 20 20  1e 1c 1a 20 1c 16 16 16  |.....   ... ....|
000052e0  16 16 14 20 20 20 1e 1c  1a 20 1a 16 16 16 16 16  |...   ... ......|
000052f0  14 20 20 20 1e 1c 1a 20  1a 16 16 16 16 16 14 20  |.   ... ....... |
00005300  20 1e 1c 1a 18 20 18 16  16 16 16 14 12 20 20 1e  | .... .......  .|
00005310  1c 1a 18 20 18 16 16 16  16 14 12 20 20 1c 1a 18  |... .......  ...|
00005320  16 20 16 16 16 16 16 12  10 20 20 1c 1a 18 16 20  |. .......  .... |
00005330  16 16 16 16 16 12 10 20  20 1e 1c 1c 18 20 1c 16  |.......  .... ..|
00005340  16 18 16 14 12 20 20 1e  1c 1c 18 20 1c 16 16 18  |.....  .... ....|
00005350  16 14 12 20 20 1e 1c 1a  18 20 1a 16 16 18 16 14  |...  .... ......|
00005360  12 20 20 1e 1c 1a 16 20  1a 16 16 18 16 12 10 20  |.  .... ....... |
00005370  20 1e 1a 18 16 20 18 16  16 18 16 12 10 20 20 1e  | .... .......  .|
00005380  1a 18 16 20 18 16 16 18  16 12 10 20 20 1e 18 16  |... .......  ...|
00005390  14 20 16 16 14 16 14 12  10 20 20 1e 18 16 14 20  |. .......  .... |
000053a0  16 16 14 16 14 12 10 10  16 18 40 46 48 30 36 38  |..........@FH068|
000053b0  4c 50 68 78 8c a0 b9 cd  4c 50 68 78 8c a0 b9 cd  |LPhx....LPhx....|
000053c0  4e 56 66 78 8c a0 b9 cd  4c 54 68 78 8c a0 b9 cd  |NVfx....LThx....|
000053d0  4c 54 68 78 8c a0 b9 cd  4c 54 68 78 8c a0 b9 cd  |LThx....LThx....|
000053e0  4c 50 68 78 8c a0 b9 cd  4c 50 68 78 8c a0 b9 cd  |LPhx....LPhx....|
000053f0  4e 56 66 78 8c a0 b9 cd  16 56 16 58 18 58 60 60  |NVfx.....V.X.X``|
00005400  17 57 17 58 18 58 60 60  19 59 19 58 18 58 60 60  |.W.X.X``.Y.X.X``|
00005410  3c 7c 3c 7c 3c 7c 3c 7c  3c 7c 3c 7c 3c 7c 3c 7c  |<|<|<|<|<|<|<|<||
00005420  3c 7c 3c 7c 3c 7c 3c 7c  18 58 18 62 22 62 22 62  |<|<|<|<|.X.b"b"b|
00005430  19 59 19 62 22 62 22 62  19 59 19 62 22 62 22 62  |.Y.b"b"b.Y.b"b"b|
00005440  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
*
00010000

The menu is back too and I can reconfigure absolutely everything as before ...

Super happy around here, it did a lot of work, but I learned a lot from these problems ...

This is a lesson for everyone who likes to venture into the world of hardware and software, but low-level hardware and brush-bit style software, as we say here in Brazil, that is, when we have a problem, we try almost everything , and in the end, with a cool head, we managed to solve!

Big hug, cold beers and womens, of couse, to everyone who somehow tried to help me!

Now I have U-Boot updated to the latest version also on this router and I will make some backups of this router and of my wdr4300, thats is my main router - This wdr3600 is my secondary router, acting as an extender AP for wifi and sometimes for wired network in my room.

topsbr · October 29, 2019, 1:29am

There is a problem yet ...

I'm without MAC-ADDRESS on wireless interfaces ...
Tomorrow I will unmount the router again, connect to it via serial port and try to set the MAC with the U-Boot "setmac" command ...

It will be another step, but let's move on!

mk24 · October 30, 2019, 3:45pm

You can just override the MAC using option macaddr in the config. I think the MAC is patched into a particular address in the otherwise empty space at the end of the bootloader partition. Either there or near address 0 in the ART.

topsbr · October 30, 2019, 4:14pm

Yes, I can @mk24...

But i'm working on full router restauration, so i want to leave it with the original MAC ADDRESS ...

Yesterday I got home late due to problems at my work and couldn't work on it, but until the weekend, it will be OK ...

topsbr · October 30, 2019, 10:34pm

Fixed MAC addresses in U-Boot!

Now everything works correctly as before, with the ease of being with the updated U-Boot!

You can close the thread if you think so.

tmomas · November 9, 2019, 10:34pm

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