https://www.theverge.com/2019/1/7/18173215/tmobile-att-fake-5g-network-troll-9g-iphone

We don’t usually pay much attention to T-Mobile’s Twitter antics, but earlier today the carrier had a solid retort to some nonsense from AT&T. In response to AT&T updating a few different phones to show a “5G E” connectivity logo — despite being completely incapable of connecting to a 5G network — T-Mobile tweeted a short video of someone putting a sticky note reading “9G” on top of their iPhone’s LTE icon.

It’s a simple and dumb stunt. And it’s a completely fair metaphor for what AT&T is doing.