I need help with some issues. My device light is off.

[wangpengju00]

My device has switched to the UBI layout, but I installed a self-built system image before (the recovery on this page), and then I mistakenly updated the openwrt-mediatek-mt7622-linksys_e8450-ubi-squashfs-sysupgrade.itb (1.12) on this page under the sysupgrade page (only installed this), and now the device indicator light is not on, so I checked ttl output, it says "BL2: Failed to load image id 3" just like this: https://forum.openwrt.org/t/need-help-with-a-bricked-linksys-e8450/144836, I don't know what went wrong, and how I should solve the problem

[wangpengju00]

I only have one such device that can connect to the e8450 and display this data, can I use it to solve my problem?

[dangowrt]

Yes, this adapter should work. Connect only GND to GND, TX to RX and RX to TX.

[wangpengju00]

Yes, this adapter should work. Connect only GND to GND, TX to RX and RX to TX.

OK, but after I use this adapter to connect to the motherboard, it only displays the following content, and there is no operable part. How can I use this adapter to solve my problem? Thank you.

[mrkiko]

On Wed, Jun 12, 2024 at 06:00:58PM -0700, wangpengju00 wrote: > Yes, this adapter should work. Connect only GND to GND, TX to RX and RX to TX. OK, but after I use this adapter to connect to the motherboard, it only displays the following content, and there is no operable part. How can I use this adapter to solve my problem? Thank you. 

Hi! you will probably need mtk_uartboot search for it around in the openwrt forum and/or maybe the issues (even closed) of this repo.

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[user8446]

Instructions to recover from the "OpenWrt Kiss of Death":

https://openwrt.org/toh/linksys/e8450#recovery_from_openwrt_kiss_of_death_okd