[Zrouter-users] DSR-500N bootloader recovery

Aleksandr Rybalko ray at ddteam.net
Tue Jan 22 14:19:49 UTC 2013

On Tue, 22 Jan 2013 16:07:20 +0200
Mircea Botoca-Huh <mircea.huh at gmail.com> wrote:

> These are the steps to recover the u-boot bootloader on dlink DSR-500N
> router (it should work on all DSR series but I tested only with 500N).
> 1. Open the case and remove the jumper (there is only one jumper). This way
> you will boot into failsafe bootloader.
> 2. Connect a RS232 cable to console port. Settings: 115200 8N1 parity none,
> flow control none.
> 3. Power on the router
> 4. If you don't have the uboot binary please contact me and I will send it
> to you.
> 5. Because the failsafe bootloader does not support networking, you have to
> load the file using a serial connection. At dsr prompt enter: loadb
> 6. Now send the binary file to the router using any terminal which is
> capable to send files with kermit (I use hyperterminal)
> 7. After the file is successfully loaded onto the router, type the
> following command: run bootloader_flash_update
> 8. After the update is done, power off the router and put the jumper back.
> Now your DSR should boot the normal way.
> If you need any more help, don't hesitate to contact me.
> Best regards,
> Mircea

Many thanks Mircea!

Aleksandr Rybalko <ray at ddteam.net>

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