Possibly bricked TL-MR3420 v1 - Serial/TFTP - memory address typo

As I tried to debrick my router (TL-MR3420 v1) as per the following guide I mistyped the memory address (0x810000 instead of 0x81000000), overwriting the wrong part. Is it possible to download and flash a full firmware image and/or the lost code? The router is still on and serial+tftp seems to work

if TFTP works, try https://openwrt.org/toh/tp-link/tl-mr3420#flash_via_tftp

is it still working, or did you discover your error before rebooting ?

which command did you mistype, cp.b or tftpboot ?

which command did you mistype, anyway ?

tftpboot 0x810000 code.bin (should be 0x81000000)

is it still working, or did you discover your error before rebooting ?

Haven't yet rebooted, I'm afraid due to the typo the bootloader might not work anymore. I don't have much experience in these things :confused:

tftpboot only loads the bin into RAM from the TFTPd, you should be fine.

cp.b writes it.

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Thanks, after reboot everything works as expected :grinning:

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