InternalUI Builds

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.

This is a list of known Internal UI builds. Unlike Internal Firmware, these builds are internal versions of iOS, used for testing and debugging the different features before deciding whether to 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. You can learn more about internal apps here.

What is Desense?

Desense is a slimmed down version of Internal UI, that are used to do quality control. These builds have less apps installed. These builds are also less valuable because of the lack of apps. Desense builds have around 2 full pages of internal apps while regular Internal UI builds often have 3 or more pages of internal apps. Additionally, these builds may contain diags.

Screenshots from Internal UI builds

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  The brick device button on Innsbruck 11A465

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  Homescreen

iPhones

iPhone 3GS

Version	Build	Codename	Baseband	Comments
3.0	7A187a	Krikwood?	?	From @1nsane_Dev On Twitter.

iPhone 4

Version	Build	Codename	Baseband	Comments
4.0	8A216	Apex?	?	-

iPhone 4S

Version	Build	Codename	Baseband	Comments
5.0	9A2306f	TellurideNanshan	Trek-1.0.00	Originally found on Twitter..
5.0	9A334	Telluride?	?	-

iPhone 5

Version	Build	Codename	Baseband	Comments
6.0.1	10A525	Sundance?	?	Referenced by an Internal OTA Update.
7.0	11A465	Innsbruck	?	From @URedditor On Twitter.

iPhone 6

Version	Build	Codename	Baseband	Comments
10.0	14A149	Whitetail	?	-

iPhone 6 Plus

Version	Build	Codename	Baseband	Comments
11.2	15C50	Cinar	?	From @andreyauxenfers on Twitter.

iPhone 6s Plus

Version	Build	Codename	Baseband	Comments
11.2	15C50	Cinar	?	From @andreyauxenfers on Twitter.

iPhone 7

Version	Build	Codename	Baseband	Comments
13.0	17A508	Yukon	4.03.01	From @CollectorApple On Twitter.

iPhone 8

Version	Build	Codename	Baseband	Comments
13.0	17A508	Yukon	4.03.01	From @CollectorApple On Twitter.

iPhone X

Version	Build	Codename	Baseband	Comment
12.1.1	16C49	PeaceC?	?	From @andreyauxenfers on twitter.
13.0	17A512	Yukon		-
	17A571	YukonPre		-
13.3	17C54	YukonC		-
13.4	17E192	YukonE?		-

iPhone XS

Version	Build	Codename	Baseband	Comments
12.1	16B92	PeaceB	?	-

iPhone XS Max

Version	Build	Codename	Baseband	Comments
13.0	17A3457l	Yukon?	?	From @BenGeskin on Twitter.
13.2	17B45a	YukonB	2.02.01	From @iarchiveml on Twitter.

iPhone 11 Pro Max

Version	Build	Codename	Baseband	Comments
13.4	17E186	YukonE	?	-

iPhone 11

Version	Build	Codename	Baseband	Comments
14.0	18A188	Azul	1.05.14	From @choco_bit On Twitter.

iPhone 12 mini

Verison	Build	Codename	Baseband	Comments
14.1	18A8359a	AzulHW?	?	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

iPhone 12

Verison	Build	Codename	Baseband	Comments
14.3	18C57	AzulC	?	-

iPhone 12 Pro

Verison	Build	Codename	Baseband	Comments
14.5	18E153x	AzulE	?	-

iPads

iPad 1

Version	Build	Codename	Baseband	Comments
5.0	9A269	Telluride?	?	From @DongleBookPro On Twitter.

iPad 2

Version	Build	Codename	Baseband	Comments
7.0.4	11B554a	InnsbruckTaos	?	-

iPad Mini 4

Version	Build	Codename	Baseband	Comments
8.3	12E61520g	Stowe?	?	From @JinStore On Twitter.
12.2	16E227	PeaceE?	?	From @Info_iosx On Twitter.

iPod Touches

iPod Touch (4th generation)

Version	Build	Codename	Comments
4.1	8B117	Baker	From @DongleBookPro On Twitter.