Which openwrt Firmware to use on 5G Wireless Router Y510-8200EA

Hello,
I have recently bought a 5G Wireless Router, Model Y510-8200EA,
Model name stated on the label at the rear of the router.
Now, its motherboard has a model name U7621-01-AX printed on it.

The system log file begins with:
Y510 R13 007E0921BA66 1.0.230-20230417-110301
Thu Jul 20 23:01:52 2023 kern.notice kernel:
0.000000 Linux version 4.4.140 (abu@openwrt) (gcc version 5.4.0 (LEDE GCC 5.4.0 1.0.177) ) 0 SMP Mon Apr 17 02:53:15 2023
Thu Jul 20 23:01:52 2023 kern.info kernel: SoC Type: MediaTek MT7621 ver:1 eco:3
Thu Jul 20 23:01:52 2023 kern.info kernel: bootconsole [early0] enabled
Thu Jul 20 23:01:52 2023 kern.info kernel: CPU0 revision is: 0001992f (MIPS 1004Kc)
Thu Jul 20 23:01:52 2023 kern.info kernel: MIPS: machine is R13

When logged on to the web admin interface there is a logo 5G MEFI
The currently installed firmware is:
Firmware Version : 1.0.230

I have tremendous problems with the 5G LTE connection, it is rotating / searching between NR5G_BAND78, UNKNOWN_BAND and different EUTRAN-BANDs all the time trying to find who knows what....., which causes the internet connection to break.

Download speed tests are very unstable.

According to those information, can anyone comprehend what openwrt firmware may I install so as I may improve the stabilty of the 5G LTE connection?

If more information is needed, please let me know.

Any feedback is really appreciated.

Kind regards,
Chris

MT7621 makes the device supportable, but all FWs are device specific, and your very anonymous device isn't, AFAIK, supported.

Post a link or photo, perhaps it's s a clone of some other device.

MT7621 makes the device supportable

do you mean from this link https://downloads.openwrt.org/snapshots/targets/ramips/mt7621/

which file do I have to try?

thank you,

supported <> supportable

you should post the PCB pic you sent to me, too, but bigger.

Besides the board itself it will be good to know what kind of modem it hosts.
If you can access the box over ssh or a serial console please show the output of
cat /sys/kernel/debug/usb/devices

From the model name it looks like the modem is SIMCom SIM8200EA.

You'll need serial port access anyway, the 8 pin connect could be the serial port.

Use the </> button when you post cli output, makes it more readable.

1 Like

to use a serial port access anyway for what? to upload firmware?
I have a serial cable

From https://openwrt.org/docs/guide-developer/add.new.device

  1. Make sure you have working serial console and access to the bootloader.

Yes, usually you start by booting an initramfs image, running in ram.

Just so you understand, assuming the device is supportable, you own it, it'll be your job to make it work with OpenWRT.

well, I am new to openwrt so any feedback how I can do this, is really appreciated.

Guess that's what the link @AndrewZ posted is all about.

When you get far enough, create a new thread in the developers sub forum.

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