P5X Version 4.9 Update: Cosmic Yui, 9-Hour Server Downtime
Persona 5: The Phantom X — P5X to most of its players — went offline at 2:00 AM UTC on 9 September for the Version 4.9 update, and Sega's schedule puts the servers back at 11:00 AM UTC — a nine-hour window with no way to log in on any platform. The game runs on Android, iOS and Windows, and all three clients are down for the same block, so there is no "PC still works" workaround this time.
The headline addition is Cosmic Yui, a 5-star Nuclear-affinity Phantom Idol, alongside the third phase of Chapter 4 of the main story. Everything below comes from the update notice Sega published on the official Persona 5: The Phantom X site.
What the P5X Version 4.9 update actually adds
Cosmic Yui headlines the Most Wanted Phantom Idol Contracts banner, which stays up until 1:59 AM UTC on 15 October. She is an assassin-style unit built around summoning Veggie Knights that buff her and the rest of the party, with her heavy single-target hits counting as all-out attack damage on alternating turns.
The story side gets Main Story Chapter 4: The Masks We Wear: Phase 3, which opens fresh areas in both the Palace and Mementos. The rest of the patch is progression housekeeping, and some of it matters more than the banner:
- Thieves Den level cap raised from 60 to 70, with the Persona 3 Reload collaboration materials added as collectible display items.
- Velvet Trials stages 26 through 30 added to the endgame challenge ladder.
- A new Synergy Story for Musubi Matsukata.
- Season 11 of the Phantom Pass, running until 1:59 AM UTC on 29 October, with extra Elysian Ink and Prophetic Ink on the premium track.
- A Galaga-style shooting minigame starring Yui and her Veggie Knights, paying out Meta Jewels and training materials.
Which events run alongside it, and when they end
Four limited events go live with the patch and all four close at the same moment — 1:59 AM UTC on 15 October, the same cut-off as the Cosmic Yui banner. They are Harvest World: Cosmic Calamity, Shadow Hunt, the P3R Special Event Completion Missions, and a release event tied to Phase 3 of the story.
That shared deadline is worth noting if you are a returning player: the Persona 3 Reload collaboration missions are on the same clock as everything else, so there is no long tail on them after the banner rotates.
Compensation for the maintenance
Sega is handing out 7 Platinum Tickets as a login bonus, claimable from 9 September until 9:59 PM UTC on 23 September. There is also a separate ASMR celebration gift going to every player, and that one sits on a much longer claim window — 2:59 PM UTC on 26 June 2027, which lines up with the anniversary of the game's worldwide launch.
Neither reward requires spending anything. If you miss the two-week Platinum Ticket window, though, it is gone; the game does not backdate login bonuses.
Platforms, and what happens when servers return
The Phantom X is free-to-play on Android via the Play Store and Google Play Games, on iOS, and on Windows through Steam. Sega publishes it worldwide; Black Wings Game Studio develops it, and Perfect World handles the separate Chinese release, which runs on its own patch schedule and is not covered by this notice.
Expect a client download when the servers come back — version updates of this size have not been hot-patched in the past, and mobile players on metered connections will want to be on Wi-Fi. If you are playing on a phone that is tight on storage, the same advice applies here as it did when Nikke forced a full 17GB redownload: clear space before you queue the update, not after.
Other gacha titles are on a similar cadence this week — Fire Emblem Heroes 10.9.0 landed with Vista Heroes and seven weapon refines on the same two mobile platforms. And nine hours is on the long side for a mobile RPG but not unusual for a story patch; by comparison, Final Fantasy 14's patch 7.56 took all worlds offline for four hours.
Playing on Android and want a break while you wait? Our round-up of the best offline Android games under 500MB covers things that need no server at all, and a controller helps for the Galaga minigame — here is how to connect a PS5 controller to Android without input lag.
Frequently Asked Questions
What time do P5X servers come back after the Version 4.9 maintenance?
Sega scheduled the maintenance from 2:00 AM to 11:00 AM UTC on 9 September 2026, so servers are due back at 11:00 AM UTC. That is 4:00 AM PT, 7:00 AM ET and 4:30 PM IST. Maintenance windows can be extended, so the in-game notice board is the place to confirm once you can log in again.
Who is Cosmic Yui in P5X?
Cosmic Yui is a 5-star Nuclear-affinity Phantom Idol added in Version 4.9. She summons Veggie Knights that buff her and her allies, and on alternating turns her single-target damage is counted as all-out attack damage. Her banner runs on the Most Wanted Phantom Idol Contracts until 1:59 AM UTC on 15 October 2026.
What free rewards does the Version 4.9 maintenance give?
Every player gets 7 Platinum Tickets as a login bonus, claimable from 9 September until 9:59 PM UTC on 23 September 2026. A separate ASMR celebration gift is also being sent to all players, and that one can be claimed until 2:59 PM UTC on 26 June 2027. Neither requires a purchase.
Is Persona 5: The Phantom X on Android, iOS and PC?
Yes. The Phantom X is free-to-play on Android through the Google Play Store and Google Play Games, on iOS, and on Windows via Steam. All three versions share the same servers and the same Version 4.9 maintenance window, so none of them were playable during the downtime.
When do the Version 4.9 events end?
Harvest World: Cosmic Calamity, Shadow Hunt, the Persona 3 Reload Special Event Completion Missions and the Phase 3 release event all close at 1:59 AM UTC on 15 October 2026, the same time the Cosmic Yui banner ends. Season 11 of the Phantom Pass runs longer, until 1:59 AM UTC on 29 October 2026.
