How to Sign Up for Free Fire OB51 Advance Server in 2025

The OB51 Advance Server for Free Fire is set to kick off registrations any day now, and here's the rundown for anyone playing the battle royale game. Jumping on this test server means you get a head start on fresh features, unique goodies, and a say in how the next major Garena Free Fire update turns out.

When Does Registration Start?

Sign-ups for the Advance Server should go live toward the end of September or the start of October 2025. Keep in mind, there are only so many spots, so be quick when the official page drops.

When Does the OB51 Update Launch?

The full Free Fire OB51 update rolls out on October 28, 2025, kicking off around 9 AM IST and hitting all platforms by the end of the day.

How to Register for the OB51 Advance Server

Head over to the official Advance Server website.
Sign in with the Google or Facebook account tied to your Free Fire ID.
Fill in your email where it asks.
Hit “Join Now” to send in your request.
You'll get a special activation code—make sure to jot it down, since it's your key to getting in.

When the Advance Server download link pops up, punch in that code to dive into testing the OB51 update.

These codes are one-time deals, capped in number, and can't be passed around. No luck? Hang tight for the main release.

What’s Special About the Advance Server?

Early access: Get hands-on with new characters, weapons, modes, and gameplay changes way before everyone else in the Free Fire community.
Bug reporting: Spot problems and report them to Garena, helping make the update smoother for the whole player base.
Exclusive rewards: Folks who test out usually score some in-game loot as a nod to their input.

Why Bother With the Advance Server?

If you're deep into Free Fire, this is prime time to nudge the final tweaks and boast about seeing new stuff first. It's Garena's method for putting updates through the wringer—your thoughts help craft what tons of players jump into on day one.