Upgrading SSD in ASUS TUF Gaming FX505GD-BQ138T

[XGAMER]

Currently, my laptop (ASUS TUF Gaming FX505GD-BQ138T) is equipped with a 128GB M.2 SSD, which is proving to be insufficient for my needs. I am considering upgrading to a 1TB M.2 SSD to enhance my storage capabilities and improve overall performance.

I would greatly appreciate any insights or experiences from anyone who has successfully upgraded their M.2 SSD in a similar model. Is it possible to replace the existing SSD with a 1TB or even 500GB version?
#SSD

#TUF

[Falcon_ASUS]

@XGAMER 
Your laptop's SSD supports up to a maximum of 256GB. 
If you wish to install a larger SSD, we cannot guarantee its stability and compatibility.
Sorry for any inconvenience it may be caused. 

[XGAMER]

Thank you for your reply. But it is mentioned here in the image that i can choose up to 512GB PCIe SSD! How can I be sure?

[Falcon_ASUS]

@XGAMER 
Could you provide the website source of the image so that we can ensure it contains the specification information we provided?
The FX505 series has different models according to specifications. Your model is FX505GD, and the specification information I have provided is for this model.

[XGAMER]

https://www.asus.com/laptops/for-gaming/tuf-gaming/asus-tuf-gaming-fx505/ This is the link. Yes it is written FX505. But if you go to Tech Spec on the same page you will find that it is written FX505GD