wrt3200 bricked flashing power light

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pfk
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Joined: 18 Nov 2018
Posts: 8

PostPosted: Fri Jan 11, 2019 4:08    Post subject: wrt3200 bricked flashing power light Reply with quote
My router got bricked back in november and I finally have some time to play with it..
so....I went looking for all the notes and bookmarks I made when it first happened but they're nowhere to be found Shocked
I read through the cliff notes again, re-searched for blinking power light etc

long and short of it is, where did I see a thread about unbricking the 3200?!? Rolling Eyes

I remember trying to swap partitions,then trying to ping the router with ethernet cable with no success....I was going to continue the next day and never got back to it...iirc the next steps all required a serial cable?

sorry for starting a new thread on it, its been a rough day and I just got called back into work....almost no patience left and I really miss having a wifi signal that actually works in my bedroom

thanks in advance

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pfk
DD-WRT Novice


Joined: 18 Nov 2018
Posts: 8

PostPosted: Wed Jan 16, 2019 7:48    Post subject: Reply with quote
I ordered in a USB to TTL serial converter and got it up and going with tftpd and putty...

When I power up , the boot sequence starts and putty hangs at the following point:

Code:
BootROM - 1.73
Booting from NAND flash

General initialization - Version: 1.0.0
AVS selection from EFUSE disabled (Skip reading EFUSE values)
mvSysEnvIsFlavourReduced: TWSI Read of 'flavor' failed
Detected Device ID 6820
High speed PHY - Version: 2.0

Init RD NAS topology Serdes Lane 3 is USB3
Serdes Lane 4 is SGMII
board SerDes lanes topology details:
 | Lane # | Speed|    Type     |
 ------------------------------|
 |   0    |  6   |  SATA0      |
 |   1    |  5   |  PCIe0      |
 |   2    |  6   |  SATA1      |
 |   3    |  5   |  USB3 HOST1 |
 |   4    |  5   |  PCIe1      |
 |   5    |  0   |  SGMII2     |
 -------------------------------
:** Link is Gen1, check the EP capability
PCIe, Idx 0: Link upgraded to Gen2 based on client cpabilities
:** Link is Gen1, check the EP capability
PCIe, Idx 1: remains Gen1
High speed PHY - Ended Successfully
DDR3 Training Sequence - Ver TIP-1.46.0
mvSysEnvGetTopologyUpdateInfo: TWSI Read failed
DDR3 Training Sequence - Switching XBAR Window to FastPath Window
DDR3 Training Sequence - Ended Successfully
Not detected suspend to RAM indication
BootROM: Image checksum verification PASSED
l

U-Boot 2013.01 (Sep 25 2017 - 11:42:52) Marvell version: 2015_T1.QA.0p16

Boot version : v1.0.0

Board: RD-NAS-88F6820-DDR3
SoC:   MV88F6820 Rev A0
       running 2 CPUs
CPU:   ARM Cortex A9 MPCore (Rev 1) LE
       CPU 0
       CPU    @ 1866 [MHz]
       L2     @ 933 [MHz]
       TClock @ 200 [MHz]
       DDR3    @ 933 [MHz]
       DDR3 32 Bit Width,FastPath Memory Access, DLB Enabled, ECC Disabled
DRAM:  512 MiB
NAND:  256 MiB
MMC:   mv_sdh: 0
 



I noticed another member posted a similar issue with his but no solution yet....

Is there a way to stop the boot process before it starts so that you can send commands through putty?[/code]

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foz111
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Joined: 01 Oct 2017
Posts: 166

PostPosted: Fri Jan 25, 2019 8:52    Post subject: Reply with quote
I am in the same boat as yourself it may be my post you've seen, ive found this on open wrt forum

"These devices intentionally hide the serial console from you. Note that in your printenv, "silent=1". You need to get rid of that variable, or set it to 0, and then see what is actually going on with your router. Otherwise you'll be flying completely blind."

taken from this thread https://forum.openwrt.org/t/bricked-wrt32x/27329

seems we need a linux machine to run kwboot from what i can gather, a little above my head at the moment. https://github.com/ValCher1961/McDebian_WRT3200ACM/blob/master/recovery-uboot/readme.txt
foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 166

PostPosted: Wed Jan 30, 2019 11:14    Post subject: Reply with quote
is there no one that can help with this please?
DaveI
DD-WRT User


Joined: 06 Jul 2009
Posts: 229

PostPosted: Wed Jan 30, 2019 17:02    Post subject: Reply with quote
This is the best video I have seen on unbricking these routers...Unless there's something different for the 3200 this should do the trick...Of course you would use the firmware image for your router (not the caimen.img) he's using in this video...

https://www.youtube.com/watch?v=mN7u79EupGQ

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foz111
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Joined: 01 Oct 2017
Posts: 166

PostPosted: Fri Feb 01, 2019 11:33    Post subject: Reply with quote
thanks for your reply, however like the above post it does not reach the point where it says press any key it simply stops at the point just like the above post this is the problem
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