I had a similar issue with a tempered glass protector, not just with Gadgetshieldz but other brands too. Despite replacing it twice, air bubbles kept appearing on the edges. I realized it was due to the curved design of my phone’s screen, which makes it harder for flat protectors to adhere perfectly. Switching to a protector specifically designed for curved screens or opting for a flexible film-style one solved the problem for me. It’s frustrating, but sometimes the phone’s design plays a bigger role than the protector itself.
