Need motherboard for nokia n900

"Nivetha, Check the attached links for replace Nokia N900 replacement mother board or google search for more availability on part. Good luck.

I hope this helped you out, if so let me know by pressing the helpful button.

https://www.aliexpress.com/price/nokia-n...

Nokia N900 Teardown"

@nezni9 no it is not. Your phone will only accept the motherboard it currently has due to the layout. The connectors, buttons, etc. are all depending on this type of board. You can only replace the same board. If you want a different OS or other different features, you will need a different phone.