J105aAP - Revision history

IAdam1n at 13:51, 17 September 2021

2021-09-17T13:51:52Z

Lilstevie: Results from further research into the debug port and how it Sets USB modes

2020-06-29T14:52:54Z

Results from further research into the debug port and how it Sets USB modes

Dangeredwolf: Typo

2020-05-28T04:24:53Z

Typo

Lilstevie: Add some basic information about the hidden debug port

2019-11-18T07:58:11Z

Add some basic information about the hidden debug port

Detiac at 00:19, 23 September 2017

2017-09-23T00:19:50Z

Dialexio: I like PNGs.

2017-09-15T16:36:32Z

I like PNGs.

IAdam1n: Created page with "Apple TV 4K The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. It’s firmware identifier is AppleTV6,2. It is capable..."

2017-09-15T13:48:46Z

Created page with "thumb|131px|Apple TV 4K The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. It’s firmware identifier is AppleTV6,2. It is capable..."

New page

[[File:Apple TV 4K.jpg|thumb|131px|Apple TV 4K]]
The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. It’s firmware identifier is AppleTV6,2. It is capable of playing 4K content.

The Apple TV 4K was announced on 12th September 2017 and released on 22nd September 2017.

[[Category:Devices]]

@@ Line 2: / Line 2: @@
 The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. Its firmware identifier is AppleTV6,2. It is capable of playing 4K content.
-The Apple TV 4K was announced on 12th September 2017 and released on 22nd September 2017.
+The Apple TV 4K was announced on {{date|2017|09|12}} and released on {{date|2017|09|22}}.
 == Application processor ==

@@ Line 13: / Line 13: @@
 Hidden behind a small trapdoor in the back of the Ethernet port is a debug port that includes USB access.
-Without a custom cable the easiest method of access to the port is to solder directly onto the pins. Care should be taken with the test points that are near the port as they also serve as the top of the via that connects the debug port to the rest of the Apple TV. USB access is disabled in tvOS due to us not knowing how to instruct the AppleTV that a device is currently connected, but this limitation does not exist in DFU or Recovery. While the Reset pin pulls force dfu high, secureROM requires that it detects a USB connection. At this time it does not allow entry into DFU.
+Without a custom cable the easiest method of access to the port is to solder directly onto the pins. Care should be taken with the test points that are near the port as they also serve as the top of the via that connects the debug port to the rest of the Apple TV. USB access is enabled by setting the voltage on the mode pin to either USB device mode or assert force_dfu mode. While in DFU or recovery Apple's firmware does not care about the mode pin state and always enables USB. In assert force_dfu mode the Apple TV will enter DFU on every boot.
 [[File:AppleTV4K_Debug_Internal.jpg|thumb|left]]
 {| class="wikitable"
 |+ Pinout
@@ Line 50: / Line 51: @@
 |-
 ! scope=row | 6
-| Reset
+| Mode Pin
 | 1.8V
 |-
 ! scope=row | 7
@@ Line 59: / Line 60: @@
 | See pin 1, connected to the A10X next to pin 1
 |}
 [[Category:Devices]]

@@ Line 1: / Line 1: @@
 [[File:Apple TV 4K.png|thumb|131px|Apple TV 4K]]
-The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. It’s firmware identifier is AppleTV6,2. It is capable of playing 4K content.
+The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. Its firmware identifier is AppleTV6,2. It is capable of playing 4K content.
 The Apple TV 4K was announced on 12th September 2017 and released on 22nd September 2017.

← Older revision		Revision as of 07:58, 18 November 2019
Line 7:		Line 7:
	The Apple TV 4K makes use of the [[T8011\|Apple A10X]] processor.		The Apple TV 4K makes use of the [[T8011\|Apple A10X]] processor.

		+	== Debug Port ==
−	{{stub\|hardware}}
		+
		+	[[File:AppleTV4K_Debug_Ethernet.jpg\|thumb\|right]]
		+
		+	Hidden behind a small trapdoor in the back of the Ethernet port is a debug port that includes USB access.
		+
		+	Without a custom cable the easiest method of access to the port is to solder directly onto the pins. Care should be taken with the test points that are near the port as they also serve as the top of the via that connects the debug port to the rest of the Apple TV. USB access is disabled in tvOS due to us not knowing how to instruct the AppleTV that a device is currently connected, but this limitation does not exist in DFU or Recovery. While the Reset pin pulls force dfu high, secureROM requires that it detects a USB connection. At this time it does not allow entry into DFU.
		+
		+	[[File:AppleTV4K_Debug_Internal.jpg\|thumb\|left]]
		+
		+	{\| class="wikitable"
		+	\|+ Pinout
		+	! Pin
		+	! Name
		+	! Max Voltage
		+	! Notes
		+	\|-
		+	! scope=row \| 1
		+	\| Unknown
		+	\| 1.8V
		+	\| Purpose of the pin is unknown but it is connected to the A10X near the USB pins
		+	\|-
		+	! scope=row \| 2
		+	\| ACC_PWR
		+	\| 3.3V
		+	\| Pin is connected to a power switch, more exploration is required to see if it is capable of outputting 5V
		+	\|-
		+	! scope=row \| 3
		+	\| USB_DM
		+	\| 3.3V
		+	\| Pin operates at USB logic levels.
		+	\|-
		+	! scope=row \| 4
		+	\| USB_DP
		+	\| 3.3V
		+	\| Pin operates at USB logic levels.
		+	\|-
		+	! scope=row \| 5
		+	\| GND
		+	\| 0V
		+	\| Pin is connected directly to the boards ground plane
		+	\|-
		+	! scope=row \| 6
		+	\| Reset
		+	\| 1.8V
		+	\| Pin is connected to a buffer which appears to be 3.3V tolerant, but caution is advised. Pin also triggers the force dfu pin to be pulled high for 20ms
		+	\|-
		+	! scope=row \| 7
		+	\| Unknown
		+	\| 1.8V
		+	\| See pin 1, connected to the A10X next to pin 1
		+	\|}
		+
	[[Category:Devices]]		[[Category:Devices]]

← Older revision		Revision as of 00:19, 23 September 2017
Line 4:		Line 4:
	The Apple TV 4K was announced on 12th September 2017 and released on 22nd September 2017.		The Apple TV 4K was announced on 12th September 2017 and released on 22nd September 2017.

		+	== Application processor ==
		+	The Apple TV 4K makes use of the [[T8011\|Apple A10X]] processor.
		+
		+	{{stub\|hardware}}
	[[Category:Devices]]		[[Category:Devices]]

← Older revision		Revision as of 16:36, 15 September 2017
Line 1:		Line 1:
−	[[File:Apple TV 4K.~~jpg~~\|thumb\|131px\|Apple TV 4K]]	+	[[File:Apple TV 4K.png\|thumb\|131px\|Apple TV 4K]]
	The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. It’s firmware identifier is AppleTV6,2. It is capable of playing 4K content.		The Apple TV 4K starts at $179 for 32GB of storage, and $199 for 64GB. It’s firmware identifier is AppleTV6,2. It is capable of playing 4K content.