Hello everyone, I tried to install latest supported OpenWrt release via TFTP recovery, some reason my device is in boot loop. I use openwrt on other devices in my home, I am no stranger to using openwrt.
How can I understand why it is not installed on wr840 v4? I want to use openwrt on this device, how can I do it?
I kindly request your valuable help and guidance.
your post doesn't contain anything useful, and we can't help you with "it didn't
work".
which image was installed (attempted to) ?
was the wiki followed ?
You're right, I tried so many time that I forgot to mention the details.
I followed the installation instructions exactly.
I downloaded the TFTP recovery image, changed its name, changed the IP and uploaded it to the TFTP server and router.
I tried flashing a few images and I'm writing what I tried.
23.05.4, 18.06.0, 21.02.7
I would like to try again and send a log, but I don't know how to send a log.
I assume you've verified the device version, by checking the bottom sticker ?
If you don't have serial port access, the only thing we can recommend, is to try to downgrade the stock fw, to the oldest one you can find, but it shouldn't really make any differance, since flash is done via boot loader.
I verified it by the bottom sticker and inside the device.
I can flash it to the oem firmware and flashed it the newest one.
I dont understand "serial port access" term 
You usually need to connect to 3 (Tx, Rx and Ground/Earth - normally do not connect Vcc!) pins on the device, and have a converter to the following format to USB:
Web Search" "TTL to Serial USB converter"
