Renault megane Uch

Dear colleagues if anyone could help me? I have a problem with the Renault Megane II 2007 year, I changed Uch modul.Old was N1 type, and the one I put the N1 or the car that is 2004, not to the board layout not the same, tags inside Motorola are not the same ...
Some things do not work, instrument panel, clima, central locking ....
Is it a problem to Uch or the installation of vehicle multiplex?
Thanks in advance

Dear colleagues if anyone could help me? I have a problem with the Renault Megane II 2007 year, I changed Uch modul.Old was N1 type, and the one I put the N1 or the car that is 2004, not to the board layout not the same, tags inside Motorola are not the same ...
Some things do not work, instrument panel, clima, central locking ....
Is it a problem to Uch or the installation of vehicle multiplex?
Thanks in advance

You need an UCH from 2007 , you can't use uch 2004 there are some hardware and software differences , and doesn't work on your car.
N1 entry level
N2 rain sensor and autolights , healight washers
N3 keyless + all N2 functions
When you change the UCH you need to reconfig the functions with Renault CLIP

I change UCH today,

You have more version off UCH
You need to change with the same inside, the same mask on MCU and the same zone for antenna.
After N1, N2, N3 nothing change, you can just lose some option's