Can I upgrade ram for asus e203 mah?

Unfortunately no you cannot, the RAM is soldered to the motherboard.

you can upgrade when you also replace the motherboard, maybe

Copy paste the link. go down to product information it says it only has a capacity of 4 gigs. I opened mine up and i didnt see any ram slots. i think what the nerds say about it being soldered in is true.

https://www.amazon.com/Vivobook-Lightwei...

Unfortunately, no. The RAM, SSD storage, Graphics Chip, and CPU are all soldered to the mother board. Unless you have amazing soldering skills, it isn’t possible to upgrade the RAM