How to remove Moto G5s Plus screen?

Motorola Moto G5s Plus 디스플레이 교체

I am following this guide to remove the screen from my phone?

I am using an SMD rework station (878ad), instead of a heat gun, and a vacuum suction cup for pulling the screen once glue gets loose from the heat.

I have tried with 125 Celsius temperature (I know it is higher than recommended), and tried heating for 3 minutes. The glue doesn’t get loose at all.

What should I do to open it?

Should I try with even higher temperature, or should I try heating for a longer duration?

My screen is working fine, but I want to replace the speaker (I have a new speaker).