This article discusses software internally used by Apple.
Acquiring a copy without Apple's consent is illegal and may result in being scammed. Engaging in illegal activity is not condoned. This information is provided for educational purposes only.
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This is a list of known Internal UI builds. These builds are versions of iOS used for testing and debugging different features before a decision is made whether it will release to the public.
What are Internal UI builds?
Internal UI builds are internal versions of iOS, watchOS, iPadOS and tvOS that have features that aren't in release builds.
These builds are for internal use within Apple and are often found on PrePVT Prototypes. Internal UI builds often have experimental features and internal apps.
What is Desense?
Desense is a slimmed down version of Internal UI, that are used to do quality control. These builds have less internal-specific apps installed, around 2 full pages whereas regular Internal UI builds often have 3 or more pages of internal apps. Additionally, these builds may contain diags.
Screenshots from Internal UI builds
iPhones
Version
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Build
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Codename
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Baseband
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Comments
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3.0
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7A187a
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Krikwood?
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?
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From @1nsane_Dev On Twitter.
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Version
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Build
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Codename
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Baseband
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Comments
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4.0
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8A216
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Apex?
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?
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-
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Version
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Build
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Codename
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Baseband
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Comments
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5.0
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9A2306f
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TellurideNanshan
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Trek-1.0.00
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From @yrh04e on Twitter.
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5.0
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9A334
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Telluride?
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?
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-
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Version
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Build
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Codename
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Baseband
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Comments
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10.0
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14A149
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Whitetail
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?
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-
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Version
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Build
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Codename
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Baseband
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Comments
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12.1
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16B92
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PeaceB
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?
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-
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Version
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Build
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Codename
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Baseband
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Comments
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13.4
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17E186
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YukonE
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?
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-
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Version
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Build
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Codename
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Baseband
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Comments
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14.0
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18A188
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Azul
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1.05.14
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From @choco_bit On Twitter.
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iPhone 12 mini
Verison
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Build
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Codename
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Baseband
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Comments
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14.1
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18A8359a
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AzulHW?
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?
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This build was discovered running on three iPhone 12 mini prototypes purchased from eBay. Notably, they boot to a strange NonUI-themed passcode screen. From @FileAnAardvark on Twitter
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Verison
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Build
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Codename
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Baseband
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Comments
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14.3
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18C57
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AzulC
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?
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-
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Verison
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Build
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Codename
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Baseband
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Comments
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14.5
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18E153x
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AzulE
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?
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-
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iPads
Version
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Build
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Codename
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Baseband
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Comments
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5.0
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9A269
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Telluride?
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?
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From @DongleBookPro On Twitter.
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Version
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Build
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Codename
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Baseband
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Comments
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7.0.4
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11B554a
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InnsbruckTaos
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?
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-
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iPod Touches