Pokemon Sleep Error Code 010100 'returned to the title screen': How to fix, possible reasons, and more

While Pokemon Sleep is not still available globally, a handful of countries accessed the game earlier yesterday (Monday, July 17, 2023). This started a spate of information regarding the available resources and features that the developers have put on offer in-game. Given that it is a new launch, there were a few bugs and errors too, including Error Code 010100 'returned to title screen' issue.

As of July 19, 2023, Pokemon Sleep is available in Canada, Australia, New Zealand, Latin American countries, Europe, Africa, Middle Eastern countries, and Asia (except for a few countries). It is available for iOS and Android.

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Pokemon Sleep Error Code 010100 'Returned to the title screen': All possible fixes

When Pokemon Sleep debuted on July 17, 2023, a number of players were quick to point out that they were unable to jump into the title. Whenever they tried to do so, they were met with Error Code 010100 which returned them to the title screen, frustrating them.

The stated error (Image via Pokemon Sleep)

The developers quickly caught wind of it and announced on the official Twitter channels for Pokemon Sleep and other Pokemon-related topics to uninstall the app and reinstall it. According to their advice, this will fix the issue.

Trainers also have the option to clear the cache and restart their device if the issue still persists. The game is still in its early days, and as such, troubles like this are within expectations and will soon be ironed out by the developers.

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All currently available locations of Pokemon Sleep

The list of Pokemon Sleep available countries is as follows:

Africa

• Egypt
• Morocco
• Nigeria
• South Africa

The Americas

• Argentina
• Brazil
• Canada
• Chile
• Columbia
• Ecuador
• Mexico
• Panama
• Peru
• United States of America
• Venezuela

Asia & Oceania

• Australia
• Brunei
• Hong Kong
• India
• Indonesia
• Japan
• Kazakhstan
• Macao
• Malaysia
• New Zealand
• Pakistan
• Phillipines
• Singapore
• South Korea
• Taiwan
• Thailand
• Turkmenistan

Europe

• Austria
• Belarus
• Belgium
• Bulgaria
• Croatia
• Cyprus
• Czechia
• Denmark
• Estonia
• Finland
• France
• Germany
• Greece
• Hungary
• Iceland
• Ireland
• Italy
• Latvia
• Lithuania
• Luxembourg
• Malta
• Netherlands
• Norway
• Poland
• Portugal
• Romania
• Russia
• Serbia
• Slovakia
• Slovenia
• Spain
• Sweden
• Switzerland
• Ukraine
• United Kingdom

Middle East

• Israel
• Kuwait
• Oman
• Qatar
• Saudi Arabia
• Turkiye
• United Arab Emirates

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For those wondering, these Pokemon are currently available in app (courtesy of Serebii):

• Bulbasaur
• Ivysaur
• Venusaur
• Charmander
• Charmeleon
• Charizard
• Squirtle
• Wartortle
• Blastoise
• Caterpie
• Metapod
• Butterfree
• Rattata
• Raticate
• Ekans
• Arbok
• Pikachu
• Raichu
• Jigglypuff
• Wigglytuff
• Diglett
• Dugtrio
• Meowth
• Persian
• Psyduck
• Golduck
• Mankey
• Primeape
• Growlithe
• Arcanine
• Bellsprout
• Weepinbell
• Victreebel
• Geodude
• Graveler
• Golem
• Slowpoke
• Slowbrow
• Magnemite
• Magneton
• Doduo
• Dodrio
• Gastly
• Haunter
• Gengar
• Cubone
• Marowak
• Kangaskhan
• Pinsir
• Ditto
• Eevee
• Vaporeon
• Jolteon
• Flareon
• Chikorita
• Bayleef
• Meganium
• Cyndaquil
• Quilava
• Typhlosion
• Totodile
• Croconaw
• Feraligatr
• Pichu
• Igglybuff
• Togepi
• Togetic
• Mareep
• Flaaffy
• Ampharos
• Sudowoodo
• Espeon
• Umbreon
• Slowking
• Wobbuffet
• Heracross
• Houndour
• Houndoom
• Larvitar
• Pupitar
• Tyranitar
• Slakoth
• Vigoroth
• Slaking
• Sableye
• Gulppin
• Swalot
• Swablue
• Altaria
• Absol
• Wynaut
• Spheal
• Sealeo
• Walrein
• Bonsly
• Riolu
• Lucario
• Croagunk
• Toxicroak
• Magnezone
• Togekiss
• Leafeon
• Glaceon
• Sylveon

The latest dozing-off app comes on the heels off the Pokemon GO Plus+ release. Niantic's mobile AR title also held the Catching Some Z's event, with a Special Research tying the two apps and GO.