Problem Xiaomi R3P Pro after update

e-i-k-e · August 28, 2019, 8:21pm

Hello,
I'm from Germany, please excuse my English.

I have one of my Xiaomi R3P Pro equipped with the software OpenWRT. And I followed these instructions
https://openwrt.org/toh/xiaomi/xiaomi_r3p_pro
The router worked with this software and I started to configure the device.

Out of ignorance and players, I have updated the router software via SSH. After that, the device was no longer accessible.
Due to the failsafe mode via Telnet, I was able to reach the device and perform a rest (firstboot).

The router I can now imme rnoch not reach (web interface), other functions do not work synonymous (for example, wlan) About SSH, I now come back to the device.
I would have thought that I could re-bottle the software from the above manual, unfortunately this is not possible. Attached to extract from the terminal.

BusyBox v1.31.0 () built-in shell (ash)

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 OpenWrt SNAPSHOT, r10574-273b803623
 -----------------------------------------------------
=== 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.
--------------------------------------------------
root@OpenWrt:~# cd /tmp
root@OpenWrt:/tmp# mtd -r write openwrt-ramips-mt7621-xiaomi_mir3p-squashfs-fact
ory.bin
Usage: mtd [<options> ...] <command> [<arguments> ...] <device>[:<device>...]

The device is in the format of mtdX (eg: mtd4) or its label.
mtd recognizes these commands:
        unlock                  unlock the device
        refresh                 refresh mtd partition
        erase                   erase all data on device
        verify <imagefile>|-    verify <imagefile> (use - for stdin) to device
        write <imagefile>|-     write <imagefile> (use - for stdin) to device
        jffs2write <file>       append <file> to the jffs2 partition on the device
        fixseama                fix the checksum in a seama header on first boot
        fixwrg                  fix the checksum in a wrg header on first boot
Following options are available:
        -q                      quiet mode (once: no [w] on writing,
                                           twice: no status messages)
        -n                      write without first erasing the blocks
        -r                      reboot after successful command
        -f                      force write without trx checks
        -e <device>             erase <device> before executing the command
        -d <name>               directory for jffs2write, defaults to "tmp"
        -j <name>               integrate <file> into jffs2 data when writing an image
        -s <number>             skip the first n bytes when appending data to the jffs2 partiton, defaults to "0"
        -p <number>             write beginning at partition offset
        -l <length>             the length of data that we want to dump
        -c datasize             amount of data to be used for checksum calculation (for fixtrx / fixseama / fixwrg / fixwrgg)
        -t <partition>          write TP-Link recovery-flag to <partition> (for write)

Example: To write linux.trx to mtd4 labeled as linux and reboot afterwards
         mtd -r write linux.trx linux

root@OpenWrt:/tmp# mv openwrt-ramips-mt7621-xiaomi_mir3p-squashfs-factory.bin
BusyBox v1.31.0 () multi-call binary.

Usage: mv [-fin] SOURCE DEST
or: mv [-fin] SOURCE... DIRECTORY

Can you help me, is the router still to save?

Borromini · August 28, 2019, 8:55pm

As the help message points out you need to specify a destination partition. Unless you command was truncated in your paste above, that seems to be missing.

That being said, to move between OpenWrt versions, you can just use sysupgrade if there are sysupgrade images available for your device (and according to your wiki link, there are). Factory images are typically only necessary top flash OpenWrt when on the vendor software. Never on OpenWrt.

e-i-k-e · August 28, 2019, 9:29pm

Thanks for your quick reply.

We say "we do not see the forest for the trees".

I'm trying a different way now.

Rescue USB stick

Supported by some Xiaomi devices

process for Xiaomi Mi :

Download firmware and store as miwifi.bin on an USB flash drive (must be FAT or FAT32)

Plug USB flash drive into device USB port

Unplug device cord

Press and hold the reset button and then re-plug the power cord

Release reset button, when the orange status LED starts blinking

Flashing is finished, when LED turns blue

The image openwrt-ramips-mt7621-xiaomi_mir3p-squashfs-factory.bin has been renamed to miwifi.bin and is located on the FAT32 formatted USB stick. After leasing the bottle, the LED flashes red for over 15 minutes and does not change to blue. :nachdenklich:

e-i-k-e · August 28, 2019, 10:46pm

I went through the manual again, flashed the original Xiaomi image and then OpenWRT.
It's all done successfully.
I'm not on the web interface (192.168.1.1) of the router. Via SSH you can reach the router.

Borromini · August 29, 2019, 1:31am

I don't see the why you'd follow Xiaomi recovery procedures for OpenWrt installations, but if it worked out well good on you.

Is your issue that there's no web interface? Because that's normal with builds off the master branch.

The pre-19.07 build might have the web interface (you're better off using that, you seem new to OpenWrt - no offense). Link:
https://downloads.openwrt.org/releases/19.07-SNAPSHOT/targets/ramips/mt7621/openwrt-19.07-snapshot-r10324-8bf8de95a2-ramips-mt7621-xiaomi_mir3p-squashfs-sysupgrade.bin

As an alternative you can install LuCI through opkg.

e-i-k-e · August 30, 2019, 3:12pm

That's right, openWRT is new to me.

I installed LuCI via SHH, and came to the web interface afterwards.
The surface was very slow and I often had to wait for the message "Collect data".
Attached to it screenshots.

https://www.bilder-upload.eu/bild-4bb528-1567178054.jpg.html
https://www.bilder-upload.eu/bild-088ed6-1567178026.jpg.html

So I thought, test your version version (your link will not work). The firmware I have selected and recorded on the web interface.
Now the router is no longer accessible via its IP (web interface, nor SSH), the set Wi-Fi connections are still displayed, but make no connection to the Internet.
In the "failsafe mode" to make a reset, I'm no longer synonymous.

Borromini · August 30, 2019, 4:41pm

There seems to be a hash in the URL (part of the file name). Try just grabbing it from the overview page: https://downloads.openwrt.org/releases/19.07-SNAPSHOT/targets/ramips/mt7621/

e-i-k-e · September 6, 2019, 9:55pm

Thank you.
However, I'm no longer on the router on it.
The switch and Wi-Fi work, but my PC gets a strange IP (192.254.0.x). The internet is no longer provided, though completed.
As I said, I can not get into failsafe mode this time. What else could I try?