VG710 no more cellular connection after 1.2.5 upgrade

Hello,
Since 1.2.5 upgrade, I Iost 4G connection (working well with version 1.1.1)
I also don't have anymore Cellular topic in network menu:

Before update:

After update:


How can I recover cellular fonction on my router ?

Thanks

Cyril
Thank you for your inquiry. To assist you further, please provide the Serial Number (S/N) and Part Number (P/N) of your device, which can be found on its nameplate (see example below). Note: If the P/N begins with M-XXXX, this model is not compatible with version 1.2.5.
For recovery instructions, please provide your email address and we'll send them to you promptly.

Please try clearing the browser cache and then try again.

Hello @zhangxiaomin 

P/N: M-FQ09
S/N: Vf7102446015921

Hello @taylor 
I tried different browser, clearing cache and private mode, same problem


Thanks all