Oddbean new post about login | logout I ask because some older phones from the 2G and 3G era no longer are compatible.
so dumb. i just want to make calls and texts i don’t want any internet
Found the problem.. According to GSMArena it looks like the V3xx (which I think is that type of phone) only does 850/1900 3G. The issue would be that T-Mobile is in the process of repurposing 1900 3G spectrum as B2 LTE. I'm sure you can find a newer flip phone but yes.. that phone will likely stop working even if - in your area - it works right now. I'd be willing to bet the seller on eBay knew that too.
But for overall durability and price these are excellent. https://www.amazon.com/CAT-FLIP-BLACK-T-MOBILE-LOCKED/dp/B0BZQKYKQF/
Actually buy the unlocked CAT flip. Supports a broader range of bands and carriers. https://www.amazon.com/Cat-S22-Flip-Touchscreen-Resistant/dp/B0BTTQGVVW/