[Solved] Changing Software in Huawei B525-23a Router: Port Forwarding & Firmware Version 11.190.61.00.159

Hello, is there any way to change the soft in this router without interfering with the middle? I care most about port forwarding etc..
Modem firmware version: 11.190.61.00.159
Web interface version: 21.100.45.00.03
HUAWEI B525-23A ORANGE

Everything about it http://www.bez-kabli.pl/viewtopic.php?f=11&t=50771

But here is the opening etc... can you do without it?

I have over 2 years of b525-23a brand plus, if you count on improving performance by changing the software, it will not meet your expectations. Changing the software basically gives only a few additional configuration options and if you are not creating a wireless network based on several routers, I do not know what CI it can help with. To get a few additional options, install hmanager on your phone, there you can enable aggregation of lte bands as you choose. Open soft will basically give you access to bridges, but on the other hand, I connected mine to the second router on ori soft, so I don't know why change it

Software change