More than two years after it first came out, GTA 5 (opens in new tab) is still yielding secrets. This one is admittedly a little less thrilling than playing as Bigfoot (opens in new tab) or making a traffic launcher (opens in new tab), but it is great if you're on the lookout for a new cell phone theme.
Accessing the secret is simple: all you need to do is pull up your cell phone in Story Mode, navigate over to the dialer, then punch in 1-999-367-3767 (or 1-999-EMP-DROP). As soon as you hit "send" a small explosion should inexplicably ring out in the sky nearby. Rather than frying all electronics in a two-mile radius, it'll just turn your cell phone theme black the next time you pull it up. Neat!
The contact name shows up as "Black Cellphones" (as opposed to "Sky Explosions") while the number is being dialed, and it doesn't appear to count as one of the GTA 5 cheats (opens in new tab). There's no indication of whether this ties into something larger or if it's just a goofy little thing from Rockstar, but it seems to be a relatively recent addition; fans have long since scoured GTA 5's files for every usable phone number, yet this one only showed up days ago.
Maybe this will be the secret to finally unravelling the Mt. Chiliad mystery and finding the jet pack (opens in new tab)? It's about as likely as any of the other weird stuff Rockstar hid in this game.
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