Hello, I've disassembled my router and I want to connect a USB TTL adapter. I don't want to make any mistakes. How do I connect it? There are five pins on the router, from 1 to 5
Something tells me you didn't even spend 5s on looking at the wiki, nor the post directly above yours…
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Hello,
This is the link He means:
https://openwrt.org/inbox/toh/linksys/mr7350_1.0
I do not mean for you to feel bad - but reading the wiki - can save you tons of time and frustrations.
Make sure to look at the picture and set you board with the exact orientation - and everything will make sense. If you get grable or text that looks weird - check your terminal baud settings and your cables TX , RX.
I'm a beginner in this matter, that's why I was asking, because I don't want to make any mistakes. Please excuse me. and I connected the router to a USB port but I'm getting this error. Note: I connected the ends as follows
Router RX to serial TX, and router TX to serial RX. and Router GND to serial GNG Note: I have a Windows operating system.
I tried to implement this method
It didn't work for me.
@pepermint
that's a windows driver issue. I only have Linux with Devuan and Debian... you have to search how you use your serial device on windows (whatever version you have). Windows people will have to walk you through the initial steps. The steps I posted are pretty much when you are in uboot. Most is setting up on a Linux machine. Have to look up Windows connection and software, unless someone who uses Windows can chime in what to use.,
Thank you very much @pepermint @darkjrtk75 The operation was successful and the router was restored. However, there is a problem, which is the second section; I want to install it. openwrt The reason the router malfunctioned is that I tried to install it. Something went wrong and caused the router to malfunction. If possible, please offer some advice so that I don't make any mistakes.
That is great news, finally I am able to respond back. Been busy working.
I have a question. I've tried switching between the two partitions by turning the router off and on three times, but the router works on the same partition each time. Is there a specific way to switch?
I have seen there is a package to make the router reboot from a particular partition.
luci-app-advanced-reboot that was what I used a couple months back and it worked for me.
You can install that from software in LUCI
Not sure what you can gain from booting from the other partition, but I figure you just want to try it.
I can navigate between the two sections through advanced-reboot and ssh But I mean manually navigating through the router itself.
Not sure 
what you mean here. Apparently not through the LUCI Advanced Reboot add-on page. Not via ssh (which would involve querying and setting a uboot environment variable, and then a reboot), also.
Do you mean by serial/UART connection?