Initial flashing for TPLink TL WDR3600

[Adrian Chadd]

you may have just bricked the firmware :( Yeah, get a serial cable and
see what it's printing out.



-a


On 8 October 2015 at 11:46, Eugene Grosbein <eugen at grosbein.net> wrote:
> On 09.10.2015 00:39, Eugene Grosbein wrote:
>
>> About reflashing.
>>
>> I've just built tl-wdr3600.factory.bin using HEAD sources and instructions at
>> https://github.com/freebsd/freebsd-wifi-build/wiki/TPLink-TL-WDR3600
>>
>> My device has "TFTP auto recovery" described at
>> http://wiki.openwrt.org/toh/tp-link/tl-wdr3600#tftp_auto_recovery_in_revision_15
>>
>> It sends tftp RRQ "wdr3600v1_tp_recovery.bin" just like that article says.
>> Is it possible to reflash the device to FreeBSD using this tftp method?
>
> It seems, no :-(
>
> First, I've tried to supply device's TFTP client with 5.6M of tl-wdr3600.factory.bin
> renamed to wdr3600v1_tp_recovery.bin and it downloaded it but rejected -
> it rebooted with original firmware.
>
> Than I padded tl-wdr3600.factory.bin to the size 8192512 wih 0xff bytes.
> TFTP client downloaded and obviously flashed it but that bricked the device,
> as it does not complete boot now and keeps resetting every 3 seconds or so,
> blinking its LEDs.
>
> Now it does not reflash itself back to original firmware - it downloads it
> but still keeps resetting same manner. Before I bricked the device,
> I verified that its TFTP client does reflash device with official
> localized firmware and back to english one just fine.
>
> It seems I need TTL cable after all.
>
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