Add support for Xiaomi AX1800 Wifi 6 router

So I finally obtained SSH on my AX1800 and wanted to install the 2Gb firmware linked by @janeblower. I'm not really experienced, so how should I proceed flashing the whole thing?

Try to do exactly as it says in the instructions.

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Hello. I was using my global AX5/RA67 (white, not the black "tower") with its stock global 3.0.34 international firmware without problems since December 2021 but some days ago it is stuck in bootloop with orange and permanent LED. It is autorestarting every one or two minutes (then the orange LED flashes a little bit) and there is no ping to 192.168.31.1 and it doesn't give any IP address using DHCP in Ethernet card.
I tried to recover the router plugging the reset button and using MIWIFIRepairTool.x86 with the miwifi_ra67_firmware_3.0.34_INT.bin file (26739648 bytes) without success (I flashed some official chinese firmwares too). This firmware is successfully uploaded with this Xiaomi tool (I can see the progress bar uploading it) and after some seconds the LED is now blinking in blue colour. If I wait ten minutes and I replug the power cord then the orange LED is fixed again and two minutes after the bootloop restarts as previously...I soldered some pings and tried TTL USB UART adapter with this outputs:

smeminfo: https://pastebin.com/L5hT3Ai4
bootloop output: https://pastebin.com/3GkZd8fq

Could anyone help me please? Thanks in advance and sorry for my bad English.

Hi everyone I Just was reading this topic and I'm just little bit confused
is there any stable and permanent solution for Openwrt with Wifi on this Router (xiaomi AX1800- RA67 ) ?
Do I need to replace the RAM or Nand Chip?

Try to replace the PSU to 2A.

Thank you @janeblower for your reply. I tried with an AX3600 PSU with 12V and 2A but it didn't work. It's the same behaviour than the AX5 PSU with 1A.

anyone here?

Yes I am here

It's super confusing! Are the above OpenWRT versions for the white version or the black tower version?

Will 3.0.34 firmware work on the black tower version AX1800?

here

Hello!

You need any 12V 2A PSU with a 4.0x1.7mm.

It didn't work with a PSU with that specs.

The dpaste is no longer available. Any chance you can provide a new list? Thks.

Your ART partition is corrupted. To restore it https://drive.google.com/file/d/10-ABUfQ__hYIAnZMFSmY44kwoKl2fNAD/view?pli=1 download this dump. Then run tftp server(192.168.31.100 ip) and use this command(you might need to rename file): tftpboot mtd8_0:ART.backup &&nand erase 0x980000 0x80000&& nand write 0x44000000 0x980000 0x80000

Hello @proxer05 and thank you a lot for your support, help and information. I've downloaded your dump. So shall I rename your "mtd_backup.zip" to "mtd8_0:ART.backup" and upload it with "tftpboot mtd8_0:ART.backup &&nand erase 0x980000 0x80000&& nand write 0x44000000 0x980000 0x80000" command using a TFTP server, right?

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Inside mtd_backup.zip you have mtd8_0:ART.backup. Rename it to art.backup and then tftpboot art.backup && nand erase 0x980000 0x80000 && nand write 0x44000000 0x980000 0x80000

Aha, OK, understood, I have not the router with me at this momment but I will try to pick it up the next days so I will tell you if your solution fixed the problem. Thank you a lot again @proxer05 for your help again!

^^^
using openwrt* for your github handle without permission is against the trademark rules [OpenWrt Wiki] OpenWrt Trademarks
it causes confusion to users
cc @psherman @thess

I don't think this is acceptable - how do you think any big trademark will treat such a violation let's say you change your handle to dell-dev or hpe-dev ?