Help me restore the original firmware

Hello. I have a TP-Link 850RE device. I had some issues - no internet connection, although the WiFi was working. I decided to install the OpenWRT firmware. After the installation and reboot, I only see the following:

login as: root

BusyBox v1.28.4 () built-in shell (ash)

| |.-----.-----.-----.| | | |.----.| |_ | - || _ | -| || | | || || | |** || |||||____****||| |** | || W I R E L E S S F R E E D O M

OpenWrt 18.06.9, r8077-7cbbab7246

=== WARNING! ===================================== There is no root password defined on this device! Use the "passwd" command to set up a new password in order to prevent unauthorized SSH logins.


The web interface is not working!!! What should I do?

I am copying the firmware file to into the tmp folder, but the folder turns out to be empty.

Please help me.
Thank You!

Please refer to

I have read everything. The firmware name does not contain the word "boot". However, all the firmwares from the OpenWRT website and the official website are showing an error.

root@OpenWrt:/# sysupgrade /tmp/*.bin
Image metadata not found
Invalid image type.
Image check 'platform_check_image' failed.

I tried


root@OpenWrt:/tmp# mtd -r write WA850RE-V2.stripped-stock-firmware.bin firmware
Unlocking firmware ...

Writing from WA850RE-V2.stripped-stock-firmware.bin to firmware ...
Rebooting ...

After that, the device is not found. The entire blue circle is flashing, then 1 division of the circle. And so on, in a loop.

Then see TP-Link WA850RE v2.0 Bricked - #37 by tp-linkuser

Brick? Seriously? Well, thank you! I followed the instructions exactly. I wonder how many devices your website turns into bricks every year? How many people throw away their devices and buy new ones? I think the companies that manufacture routers should be grateful to you. I think they should even pay for your hosting and advertising.

Did i miss to read the part where it says it is absolutely foolproof and safe to flash any router with OpenWrt and go back to stock firmware?

Just to make one point clear: You installed OpenWrt because the stock firmware didn't work as expected. Obviously, the installation went fine, but you never told us if you have a 850REv1 or v2 and if you installed the correct firmware in the first place (judging from the file names you posted, it's v2).

Stop complaining, attach serial and recover your device. As long as it's blinking, chances are good that it's recoverable.

1 Like

Congratulations. Welcome to the club. By electing to install a different firmware than the vendor-supplied one, you have demonstrated an innate curiosity and willingness to tinker, because you're not satisfied with being spoon-fed something from the manufacturer. Such inquisitiveness will stand you in good stead.

If you can get to the SSH command line, then your device is not bricked. It boots, and boots successfully. There may be other issues preventing you from gaining access to LuCI, so your inquisitiveness that I mentioned above will help you get to the bottom of the problem.