Eight months after launching on Nintendo Switch, Pokémon FireRed Version and Pokémon LeafGreen Version gained full cloud compatibility through the Pokémon HOME Version 4.1.0 update released on October 7, 2026. The patch expands premium storage, fixes a Pokémon GO Safari Ball transfer restriction, and introduces a free Level 50 Celebi.
How the Pokémon HOME 4.1.0 Maintenance Unlocked Kanto Compatibility
The integration arrived following a scheduled six-hour system maintenance window that ran from 00:00 to 06:00 UTC on October 7, 2026. The update required players on both the Nintendo Switch and mobile applications to download version 4.1.0 to restore service. While other modern series entries received cloud connectivity within weeks of their debuts, the Kanto remakes spent eight months on the Switch without it, leaving players waiting to move their teams forward into newer titles.
Starting Wednesday, October 7 (or Tuesday, October 6, depending on the player’s location) at 1 am BST, 8 pm ET, or 5 pm PST, the application went offline for maintenance as confirmed by the Japanese Pokémon HOME website. Developer Game Freak and publishers Nintendo and The Pokémon Company brought the long-awaited connectivity to the Generation III titles, which originally debuted on September 7, 2004, with an ESRB rating of Everyone 10+ due to mild fantasy violence and simulated gambling. These single-player adventures have remained among the most popular entries in the series.
The Strict One-Way Transfer Rule and Storage Expansion
“Once a Pokémon from Pokémon FireRed Version or Pokémon LeafGreen Version is moved into Pokémon HOME, it will be unable to return to Pokémon FireRed Version or Pokémon LeafGreen Version. Pokémon from other games in the Pokémon series will be unable to visit Pokémon FireRed Version or Pokémon LeafGreen Version.”
The Pokémon Company
To accommodate the influx of new Kanto catches alongside upcoming entries, paid subscribers enrolled in the Premium Plan saw their maximum cloud storage capacity jump from 6,000 to 9,000 pocket monsters without any price increase for the subscription. Support for 32-bit Android devices also ended with this release.

Unlocking the Free Level 50 Celebi via the Kanto Pokédex
Completing the regional Pokédex unlocks a promotional Mythical reward on the mobile version of the application. Players do not need to physically deposit every creature into the cloud service; the application automatically reads existing in-game registrations once linked. Obtaining Mew is not required to trigger the reward, allowing fans to secure the Level 50 Celebi without relying on distribution events that were restricted in the original 2004 releases.
Players who finish the main events can also access Deoxys after defeating the Elite Four and the Champion. Completing the full Kanto Pokédex containing all 151 Pokémon yields the Mythical reward delivered directly to the mobile application. According to Automaton, this distributed version mirrors the Mystery Gift versions from 2006, such as Mitsurin’s Celebi from the Pokémon Jungle Tour in Japan or the legal variant from the Pokémon 10th Anniversary Journey Across America mall tour in the United States.
Resolving the Pokémon GO Safari Ball Transfer Block
Beyond the Kanto compatibility patch, the software revision clears a long-standing hurdle for mobile application users. The update enables players to deposit creatures caught using Safari Balls in Pokémon GO into the wider cloud ecosystem for the first time. Upon arrival in cloud storage, those specific ball sprites automatically convert into Strange Balls.