Welcome to the forum's, newcomer!
We will need a little more information. Please parse the make and model as well as the SKU to your laptop. We can move forward from there.
Go to the crucial ram upgrade app and enter your laptop make/model.
I did and here are the results.
Yes, you can upgrade by replacing the 4gb ram with 8 or 16gb giving you 12 or 20gb:
https://www.crucial.com/compatible-upgrade-for/lenovo/ideapad-3-15are05
That unit is one of the easier ones to work with.When doing sodimms, could i do it myself or would i need a professional technician from Lenovo itself to do it for me?
Depends on your comfort level with electronics. Most of the time, memory is designed to be accessed by the consumer, but if you don't feel comfortable, it's easy money for a pro as it literally takes 5 minutes.When doing sodimms, could i do it myself or would i need a professional technician from Lenovo itself to do it for me?