[mayowa_olu]

Is there any way to downgrade this firmware version E5573S-320 - v21.321.01.00.306

Upgraded to this and didn't know it will give me problems. Currently have no network on my device.

[X3non]

...Currently have no network on my device.

is the device network unlocked?
have you tried using to 3G only or 2G only network mode and still get no network?

[mayowa_olu]

It is network unlocked. It seems to work only on 2G only.

...Currently have no network on my device.

is the device network unlocked?
have you tried using to 3G only or 2G only network mode and still get no network?

[X3non]

It is network unlocked. It seems to work only on 2G only.

odd, what are the different network modes available on your webui? attach a screenshot if you can
and what was the original firmware version on the device?

[mayowa_olu]

I just switched it back on to get a screenshot and for some reason, I had network on 4G. The first time since I flashed the firmware v21.321.01.00.306 weeks ago. I don't know if it is temporary.

The Original firmware version: 21.316.03.00.200
Web UI screenshot attached

It is network unlocked. It seems to work only on 2G only.

odd, what are the different network modes available on your webui? attach a screenshot if you can
and what was the original firmware version on the device?

[X3non]

...

you could always restart the device, see if it still receives network signals
also rather than downgrading, maybe upgrading might help (you could test both to find out for yourself)

boot pin @ [ Login / Register to download free]
balong downloader @ [ Login / Register to download free]
usblsafe for e5573s @ https://github.com/forth32/balong-usbdlo...-5573s.bin
firmwares (higher, lower and almost similar version to your original firmware)
21.329.01.00.00 @ [ Login / Register to download free]
21.200.11.00.00 @ [ Login / Register to download free]
21.316.03.00.143 @ [ Login / Register to download free]