[OpenWrt-Devel] Netgear DM200 Boot Issue/Patch Availability?

[Chris]

Hi Alberto,

Thanks for explaining the situation to me. I'll get hold of an Arduino and
give this a shot.

All the best,
Chris

On Tue, May 28, 2019 at 4:52 PM Alberto Bursi <bobafetthotmail at gmail.com>
wrote:

>
> Last attempt I saw was here https://github.com/openwrt/openwrt/pull/1770
>
> but it was rejected.
>
>
> I have some experience with the bootloader used in this device, I can
>
> provide more complete instructions to do the uboot fix though.
>
> TTL/serial access seems to be easy (there is a header as you see in the
> photo),
>
> and you need an inexpensive "arduino USB-TTL dongle" to connect to this
> device.
>
> Connect the pins as defined in the wiki, open up your serial
>
> communication program (Putty usually)
>
> and set it for 115200 serial speed, others default.
>
> Then boot the device, press a key to stop boot when you see
>
> "Hit any key to stop autoboot: 2 1 0"
>
> It should stop and accept console commands.
>
> then copy-paste this line
>
> setenv sleep 1;nmrp;sf probe 0:3;sf read $loadaddr 0x30000 0x400000;bootm
> $loadaddr
>
> This will alter the bootloader configuration that is causing the issue.
> Now it will boot kernels up to 4MB big
>
> Will still be able to boot stock firmware, we are just increasing a size
> limit.
>
> and then save the change by writing
>
> saveenv
>
> and then you can reboot the device by pulling the plug or writing
>
> reset
>
> Now you can install OpenWrt as normal.
>
> -Alberto
>
>
> On 28/05/19 14:00, Chris wrote:
>
> Hi folks,
>
> I was wondering if a patch enabling this device was ever released?
>
> http://lists.infradead.org/pipermail/openwrt-devel/2019-January/015556.html
>
> The wiki suggests one can only install/boot into OpenWRT by wiring up a
> JTAG/serial interface and manually intervene... Which is far beyond my
> comfort zone.
>
> Am very eagar to make use of this equipment, so any news would be really
> appreciated.
>
> All the best,
> Chris
>
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