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BORD

2020-04-24T10:52:40Z

Thireus: iPhone5,2 BDID is 2; iPhone5,1 BDID is 0. cf. https://ipsw.me/iPhone5,2/info and https://ipsw.me/iPhone5,1/info

The '''Board ID''' of a device (also known as '''BORD''', '''BDID''', or '''ApBoardId''') is a 6-bit value (although usually represented as <code>uint8_t</code>) that represents multiple characteristics of the logic board. In a BuildManifest, this value is found in the <code>ApBoardId</code> tag.

== Board ID Characteristics ==
The following table charts each of a Board ID's 6 bits to known board characteristics.

{| class="wikitable"
!
! Bit 5
! Bit 4
! Bit 3
! Bit 2
! Bit 1
! Bit 0
|-
! Meaning
| ?
| ?
| ?
| '''Eureka/Karoo'''
| '''Form Factor'''
| '''Production Type'''
|-
! Values
| ?
| ?
| ?
|
* <code>0</code>: Eureka
* <code>1</code>: Karoo
|
* <code>0</code>: Form Factor 'A'
* <code>1</code>: Form Factor 'B'
|
* <code>0</code>: Production (MLB)
* <code>1</code>: Development (DEV)
|}

== Devices ==
* [[List of AirPods|AirPods]]
** [[AirPods (1st generation)]]: N/A
** [[AirPods (2nd generation)]]: 0x12
* [[List of Apple TVs|Apple TV]]
** [[K66AP|Apple TV (2nd generation)]]: 0x10
** [[J33AP|Apple TV (3rd generation) (AppleTV3,1)]]: 0x08
** [[J33IAP|Apple TV (3rd generation) (AppleTV3,2)]]: 0x00
** [[J42dAP|Apple TV (4th generation)]]: 0x34
** [[J105aAP|Apple TV 4K]]: 0x02
* [[Apple Watch (1st generation)]]
** [[N27aAP|Watch1,1]]: 0x02
** [[N28aAP|Watch1,2]]: 0x04
* [[Apple Watch Series 1]]
** [[N27dAP|Watch2,6]]: 0x02
** [[N28dAP|Watch2,7]]: 0x04
* [[Apple Watch Series 2]]
** [[N74AP|Watch2,3]]: 0x0C
** [[N75AP|Watch2,4]]: 0x0E
* [[Apple Watch Series 3]]
** [[N111sAP|Watch3,1]]: 0x1C
** [[N111bAP|Watch3,2]]: 0x1E
** [[N121sAP|Watch3,3]]: 0x18
** [[N121bAP|Watch3,4]]: 0x1A
* [[Apple Watch Series 4]]
** [[N131sAP|Watch4,1]]: 0x08
** [[N131bAP|Watch4,2]]: 0x0A
** [[N141sAP|Watch4,3]]: 0x0C
** [[N141bAP|Watch4,4]]: 0x0E
* [[Apple Watch Series 5]]
** [[N144sAP|Watch5,1]]: 0x10
** [[N144bAP|Watch5,2]]: 0x12
** [[N146sAP|Watch5,3]]: 0x14
** [[N146bAP|Watch5,4]]: 0x16
* [[HomePod]]
** [[B238aAP|AudioAccessory1,1]]: 0x38
** [[B238AP|AudioAccessory1,2]]: 0x1A
* [[List of iPads|iPad]]
** [[K48AP|iPad]]: 0x02
** [[iPad 2]]
*** [[K93AP|iPad2,1]]: 0x04
*** [[K94AP|iPad2,2]]: 0x06
*** [[K95AP|iPad2,3]]: 0x02
*** [[K93AAP|iPad2,4]]: 0x06
** [[iPad (3rd generation)]]
*** [[J1AP|iPad3,1]]: 0x00
*** [[J2AP|iPad3,2]]: 0x02
*** [[J2AAP|iPad3,3]]: 0x04
** [[iPad (4th generation)]]
*** [[P101AP|iPad3,4]]: 0x00
*** [[P102AP|iPad3,5]]: 0x02
*** [[P103AP|iPad3,6]]: 0x04
** [[iPad Air]]
*** [[J71AP|iPad4,1]]: 0x10
*** [[J72AP|iPad4,2]]: 0x12
*** [[J73AP|iPad4,3]]: 0x14
** [[iPad Air 2]]
*** [[J81AP|iPad5,3]]: 0x06
*** [[J82AP|iPad5,4]]: 0x02
** [[iPad Pro (12.9-inch)]]
*** [[J98aAP|iPad6,7]]: 0x10
*** [[J99aAP|iPad6,8]]: 0x12
** [[iPad Pro (9.7-inch)]]
*** [[J127AP|iPad6,3]]: 0x08
*** [[J128AP|iPad6,4]]: 0x0A
** [[iPad (5th generation)]]
*** [[iPad6,11]]: 0x10
*** [[iPad6,12]]: 0x12
** [[iPad Pro (12.9-inch) (2nd generation)]]
*** [[J120AP|iPad7,1]]: 0x0C
*** [[J121AP|iPad7,2]]: 0x0E
** [[iPad Pro (10.5-inch)]]
*** [[J207AP|iPad7,3]]: 0x04
*** [[J208AP|iPad7,4]]: 0x06
** [[iPad (6th generation)]]
*** [[J71bAP|iPad7,5]]: 0x18
*** [[J72bAP|iPad7,6]]: 0x1A
** [[iPad (7th generation)]]
*** [[J171AP|iPad7,11]]: 0x1C
*** [[J172AP|iPad7,12]]: 0x1E
** [[iPad Pro (11-inch)]]
*** [[J317AP|iPad8,1]]: 0x0C
*** [[J317xAP|iPad8,2]]: 0x1C
*** [[J318AP|iPad8,3]]: 0x0E
*** [[J318xAP|iPad8,4]]: 0x1E
** [[iPad Pro (12.9-inch) (3rd generation)]]
*** [[J320AP|iPad8,5]]: 0x08
*** [[J320xAP|iPad8,6]]: 0x18
*** [[J321AP|iPad8,7]]: 0x0A
*** [[J321xAP|iPad8,8]]: 0x1A
** [[iPad Pro (11-inch) (2nd generation)]]
*** [[J417AP|iPad8,9]]: 0x3C
*** [[J418AP|iPad8,10]]: 0x3E
** [[iPad Pro (12.9-inch) (4th generation)]]
*** [[J420AP|iPad8,11]]: 0x38
*** [[J421AP|iPad8,12]]: 0x3A
** [[iPad Air (3rd generation)]]
*** [[J217AP|iPad11,3]]: 0x1C
*** [[J218AP|iPad11,4]]: 0x1E
* [[List of iPad minis|iPad mini]]
** [[iPad mini]]
*** [[P105AP|iPad2,5]]: 0x0A
*** [[P106AP|iPad2,6]]: 0x0C
*** [[P107AP|iPad2,7]]: 0x0E
** [[iPad mini 2]]
*** [[J85AP|iPad4,4]]: 0x0A
*** [[J86AP|iPad4,5]]: 0x0C
*** [[J87AP|iPad4,6]]: 0x0E
** [[iPad mini 3]]
*** [[J85mAP|iPad4,7]]: 0x32
*** [[J86mAP|iPad4,8]]: 0x34
*** [[J87mAP|iPad4,9]]: 0x36
** [[iPad mini 4]]
*** [[J96AP|iPad5,1]]: 0x08
*** [[J97AP|iPad5,2]]: 0x0A
** [[iPad mini (5th generation)]]
*** [[J210AP|iPad11,1]]: 0x14
*** [[J211AP|iPad11,2]]: 0x16
* [[List of iPhones|iPhone]]
** [[M68AP|iPhone]]: 0x00
** [[N82AP|iPhone 3G]]: 0x04
** [[N88AP|iPhone 3GS]]: 0x00
** [[iPhone 4]]
*** [[N90AP|iPhone3,1]]: 0x00
*** [[N90BAP|iPhone3,2]]: 0x04
*** [[N92AP|iPhone3,3]]: 0x06
** [[N94AP|iPhone 4S]]: 0x08
** [[iPhone 5]]
*** [[N41AP|iPhone5,1]]: 0x00
*** [[N42AP|iPhone5,2]]: 0x02
** [[iPhone 5c]]
*** [[N48AP|iPhone5,3]]: 0x0A or 0x0B
*** [[N49AP|iPhone5,4]]: 0x0E
** [[iPhone 5s]]
*** [[N51AP|iPhone6,1]]: 0x00
*** [[N53AP|iPhone6,2]]: 0x02
** [[N61AP|iPhone 6]]: 0x06
** [[N56AP|iPhone 6 Plus]]: 0x04
** [[iPhone 6s]]: 0x04
** [[iPhone 6s Plus]]: 0x06
** [[iPhone SE]]: 0x02
** [[iPhone 7]]
*** [[D10AP|iPhone9,1]]: 0x08
*** [[D101AP|iPhone9,3]]: 0x0c
** [[iPhone 7 Plus]]
*** [[D11AP|iPhone9,2]]: 0x0a
*** [[D111AP|iPhone9,4]]: 0x0e
** [[iPhone 8]]
*** [[iPhone10,1]]: 0x02
*** [[iPhone10,4]]: 0x0A
** [[iPhone 8 Plus]]
*** [[iPhone10,2]]: 0x04
*** [[iPhone10,5]]: 0x0C
** [[iPhone X]]
*** [[D22AP|iPhone10,3]]: 0x06
*** [[D221AP|iPhone10,6]]: 0x0E
** [[N841AP|iPhone XR]]: 0x0C
** [[D321AP|iPhone XS]]: 0x0E
** [[iPhone XS Max]]
*** [[iPhone11,4]]: 0x0A
*** [[iPhone11,6]]: 0x1A
** [[N104AP|iPhone 11]]: 0x04
** [[D421AP|iPhone 11 Pro]]: 0x06
** [[D421AP|iPhone 11 Pro Max]]: 0x02
** [[D79AP|iPhone SE (2nd generation)]]: 0x10
* [[List of iPod touches|iPod touch]]
** [[N45AP|iPod touch]]: 0x02
** [[N72AP|iPod touch (2nd generation)]]: 0x00
** [[N18AP|iPod touch (3rd generation)]]: 0x02
** [[N81AP|iPod touch (4th generation)]]: 0x08
** [[iPod touch (5th generation)]]: 0x00
** [[N102AP|iPod touch (6th generation)]]: 0x10
** [[N112AP|iPod touch (7th generation)]]: 0x16

[[Category:Firmware Tags]]

BORD

2020-04-24T10:49:33Z

Thireus: iPad mini 4 BDIDs were inverted. c.f. https://ipsw.me/iPad5,2/info and https://ipsw.me/iPad5,1/info (also shown in OTA files AssetData/boot/BuildManifest.plist)

The '''Board ID''' of a device (also known as '''BORD''', '''BDID''', or '''ApBoardId''') is a 6-bit value (although usually represented as <code>uint8_t</code>) that represents multiple characteristics of the logic board. In a BuildManifest, this value is found in the <code>ApBoardId</code> tag.

== Board ID Characteristics ==
The following table charts each of a Board ID's 6 bits to known board characteristics.

{| class="wikitable"
!
! Bit 5
! Bit 4
! Bit 3
! Bit 2
! Bit 1
! Bit 0
|-
! Meaning
| ?
| ?
| ?
| '''Eureka/Karoo'''
| '''Form Factor'''
| '''Production Type'''
|-
! Values
| ?
| ?
| ?
|
* <code>0</code>: Eureka
* <code>1</code>: Karoo
|
* <code>0</code>: Form Factor 'A'
* <code>1</code>: Form Factor 'B'
|
* <code>0</code>: Production (MLB)
* <code>1</code>: Development (DEV)
|}

== Devices ==
* [[List of AirPods|AirPods]]
** [[AirPods (1st generation)]]: N/A
** [[AirPods (2nd generation)]]: 0x12
* [[List of Apple TVs|Apple TV]]
** [[K66AP|Apple TV (2nd generation)]]: 0x10
** [[J33AP|Apple TV (3rd generation) (AppleTV3,1)]]: 0x08
** [[J33IAP|Apple TV (3rd generation) (AppleTV3,2)]]: 0x00
** [[J42dAP|Apple TV (4th generation)]]: 0x34
** [[J105aAP|Apple TV 4K]]: 0x02
* [[Apple Watch (1st generation)]]
** [[N27aAP|Watch1,1]]: 0x02
** [[N28aAP|Watch1,2]]: 0x04
* [[Apple Watch Series 1]]
** [[N27dAP|Watch2,6]]: 0x02
** [[N28dAP|Watch2,7]]: 0x04
* [[Apple Watch Series 2]]
** [[N74AP|Watch2,3]]: 0x0C
** [[N75AP|Watch2,4]]: 0x0E
* [[Apple Watch Series 3]]
** [[N111sAP|Watch3,1]]: 0x1C
** [[N111bAP|Watch3,2]]: 0x1E
** [[N121sAP|Watch3,3]]: 0x18
** [[N121bAP|Watch3,4]]: 0x1A
* [[Apple Watch Series 4]]
** [[N131sAP|Watch4,1]]: 0x08
** [[N131bAP|Watch4,2]]: 0x0A
** [[N141sAP|Watch4,3]]: 0x0C
** [[N141bAP|Watch4,4]]: 0x0E
* [[Apple Watch Series 5]]
** [[N144sAP|Watch5,1]]: 0x10
** [[N144bAP|Watch5,2]]: 0x12
** [[N146sAP|Watch5,3]]: 0x14
** [[N146bAP|Watch5,4]]: 0x16
* [[HomePod]]
** [[B238aAP|AudioAccessory1,1]]: 0x38
** [[B238AP|AudioAccessory1,2]]: 0x1A
* [[List of iPads|iPad]]
** [[K48AP|iPad]]: 0x02
** [[iPad 2]]
*** [[K93AP|iPad2,1]]: 0x04
*** [[K94AP|iPad2,2]]: 0x06
*** [[K95AP|iPad2,3]]: 0x02
*** [[K93AAP|iPad2,4]]: 0x06
** [[iPad (3rd generation)]]
*** [[J1AP|iPad3,1]]: 0x00
*** [[J2AP|iPad3,2]]: 0x02
*** [[J2AAP|iPad3,3]]: 0x04
** [[iPad (4th generation)]]
*** [[P101AP|iPad3,4]]: 0x00
*** [[P102AP|iPad3,5]]: 0x02
*** [[P103AP|iPad3,6]]: 0x04
** [[iPad Air]]
*** [[J71AP|iPad4,1]]: 0x10
*** [[J72AP|iPad4,2]]: 0x12
*** [[J73AP|iPad4,3]]: 0x14
** [[iPad Air 2]]
*** [[J81AP|iPad5,3]]: 0x06
*** [[J82AP|iPad5,4]]: 0x02
** [[iPad Pro (12.9-inch)]]
*** [[J98aAP|iPad6,7]]: 0x10
*** [[J99aAP|iPad6,8]]: 0x12
** [[iPad Pro (9.7-inch)]]
*** [[J127AP|iPad6,3]]: 0x08
*** [[J128AP|iPad6,4]]: 0x0A
** [[iPad (5th generation)]]
*** [[iPad6,11]]: 0x10
*** [[iPad6,12]]: 0x12
** [[iPad Pro (12.9-inch) (2nd generation)]]
*** [[J120AP|iPad7,1]]: 0x0C
*** [[J121AP|iPad7,2]]: 0x0E
** [[iPad Pro (10.5-inch)]]
*** [[J207AP|iPad7,3]]: 0x04
*** [[J208AP|iPad7,4]]: 0x06
** [[iPad (6th generation)]]
*** [[J71bAP|iPad7,5]]: 0x18
*** [[J72bAP|iPad7,6]]: 0x1A
** [[iPad (7th generation)]]
*** [[J171AP|iPad7,11]]: 0x1C
*** [[J172AP|iPad7,12]]: 0x1E
** [[iPad Pro (11-inch)]]
*** [[J317AP|iPad8,1]]: 0x0C
*** [[J317xAP|iPad8,2]]: 0x1C
*** [[J318AP|iPad8,3]]: 0x0E
*** [[J318xAP|iPad8,4]]: 0x1E
** [[iPad Pro (12.9-inch) (3rd generation)]]
*** [[J320AP|iPad8,5]]: 0x08
*** [[J320xAP|iPad8,6]]: 0x18
*** [[J321AP|iPad8,7]]: 0x0A
*** [[J321xAP|iPad8,8]]: 0x1A
** [[iPad Pro (11-inch) (2nd generation)]]
*** [[J417AP|iPad8,9]]: 0x3C
*** [[J418AP|iPad8,10]]: 0x3E
** [[iPad Pro (12.9-inch) (4th generation)]]
*** [[J420AP|iPad8,11]]: 0x38
*** [[J421AP|iPad8,12]]: 0x3A
** [[iPad Air (3rd generation)]]
*** [[J217AP|iPad11,3]]: 0x1C
*** [[J218AP|iPad11,4]]: 0x1E
* [[List of iPad minis|iPad mini]]
** [[iPad mini]]
*** [[P105AP|iPad2,5]]: 0x0A
*** [[P106AP|iPad2,6]]: 0x0C
*** [[P107AP|iPad2,7]]: 0x0E
** [[iPad mini 2]]
*** [[J85AP|iPad4,4]]: 0x0A
*** [[J86AP|iPad4,5]]: 0x0C
*** [[J87AP|iPad4,6]]: 0x0E
** [[iPad mini 3]]
*** [[J85mAP|iPad4,7]]: 0x32
*** [[J86mAP|iPad4,8]]: 0x34
*** [[J87mAP|iPad4,9]]: 0x36
** [[iPad mini 4]]
*** [[J96AP|iPad5,1]]: 0x08
*** [[J97AP|iPad5,2]]: 0x0A
** [[iPad mini (5th generation)]]
*** [[J210AP|iPad11,1]]: 0x14
*** [[J211AP|iPad11,2]]: 0x16
* [[List of iPhones|iPhone]]
** [[M68AP|iPhone]]: 0x00
** [[N82AP|iPhone 3G]]: 0x04
** [[N88AP|iPhone 3GS]]: 0x00
** [[iPhone 4]]
*** [[N90AP|iPhone3,1]]: 0x00
*** [[N90BAP|iPhone3,2]]: 0x04
*** [[N92AP|iPhone3,3]]: 0x06
** [[N94AP|iPhone 4S]]: 0x08
** [[iPhone 5]]
*** [[N41AP|iPhone5,1]]: 0x02
*** [[N42AP|iPhone5,2]]: 0x00
** [[iPhone 5c]]
*** [[N48AP|iPhone5,3]]: 0x0A or 0x0B
*** [[N49AP|iPhone5,4]]: 0x0E
** [[iPhone 5s]]
*** [[N51AP|iPhone6,1]]: 0x00
*** [[N53AP|iPhone6,2]]: 0x02
** [[N61AP|iPhone 6]]: 0x06
** [[N56AP|iPhone 6 Plus]]: 0x04
** [[iPhone 6s]]: 0x04
** [[iPhone 6s Plus]]: 0x06
** [[iPhone SE]]: 0x02
** [[iPhone 7]]
*** [[D10AP|iPhone9,1]]: 0x08
*** [[D101AP|iPhone9,3]]: 0x0c
** [[iPhone 7 Plus]]
*** [[D11AP|iPhone9,2]]: 0x0a
*** [[D111AP|iPhone9,4]]: 0x0e
** [[iPhone 8]]
*** [[iPhone10,1]]: 0x02
*** [[iPhone10,4]]: 0x0A
** [[iPhone 8 Plus]]
*** [[iPhone10,2]]: 0x04
*** [[iPhone10,5]]: 0x0C
** [[iPhone X]]
*** [[D22AP|iPhone10,3]]: 0x06
*** [[D221AP|iPhone10,6]]: 0x0E
** [[N841AP|iPhone XR]]: 0x0C
** [[D321AP|iPhone XS]]: 0x0E
** [[iPhone XS Max]]
*** [[iPhone11,4]]: 0x0A
*** [[iPhone11,6]]: 0x1A
** [[N104AP|iPhone 11]]: 0x04
** [[D421AP|iPhone 11 Pro]]: 0x06
** [[D421AP|iPhone 11 Pro Max]]: 0x02
** [[D79AP|iPhone SE (2nd generation)]]: 0x10
* [[List of iPod touches|iPod touch]]
** [[N45AP|iPod touch]]: 0x02
** [[N72AP|iPod touch (2nd generation)]]: 0x00
** [[N18AP|iPod touch (3rd generation)]]: 0x02
** [[N81AP|iPod touch (4th generation)]]: 0x08
** [[iPod touch (5th generation)]]: 0x00
** [[N102AP|iPod touch (6th generation)]]: 0x10
** [[N112AP|iPod touch (7th generation)]]: 0x16

[[Category:Firmware Tags]]

ECID

2017-04-01T10:08:44Z

Thireus: Users can use the -k command with ideviceinfo to fetch the required key, which is also faster.

The '''ECID''' (possibly standing for '''E'''xclusive '''C'''hip '''ID''' or '''E'''lectronic '''C'''hip '''ID''') is an identifier unique to every unit.

It is 64 bits wide, with the first ~20 bits usually set to zero (looks like <tt>00000XXXXXXXXXXX</tt> in hex).

It holds a key position in the [[SHSH Protocol]], being the element that limits each [[APTicket]] to a single specific device.

'''Note''': Some tools show it in decimal format while others do it in hexadecimal.

== Getting the ECID ==

===Via iTunes===

* Connect your iDevice to your computer.
* Open iTunes.
* Navigate to the "Summary" tab for your device.
* At the top of the panel, click twice on the line that says "Serial Number".
* Your ECID is displayed in '''hexadecimal'''.

===Via third-party software===

====On-device====

The [http://cydia.saurik.com/package/com.malcolmhall.udidcalculator/ UDID Calculator] application from Cydia displays (among other things) the ECID of your device (shown in '''decimal''').

====Via USB====

* Install [https://github.com/libimobiledevice/libimobiledevice libimobiledevice].
* Connect your device over USB.
* Run <code>ideviceinfo | grep UniqueChipID</code> command.
* There should be exactly one line, reading <code>UniqueChipID</code> followed by your ECID (in '''decimal''').
* Alternatively you can run <code>ideviceinfo -k UniqueChipID</code> which fetches the UniqueChipID key directly (which is also faster).

===Via [[Recovery Mode]] or [[DFU Mode]]===

====Mac Instructions====

*Put your device in [[Recovery Mode]] or [[DFU Mode]].
*Open System Profiler. (in /Applications/Utilities/).
*In the sidebar, go to "USB" (in the "Hardware" section).
*Under "Serial Number", there should be a part called "ECID". There you go.

====Windows Instructions====

* Put your device in [[Recovery Mode]] or [[DFU Mode]].
* Open Device Manager and right click on Apple Mobile Device (Recovery or DFU Mode) for properties.
* Click on the details tab.
* Click on the dropdown box and select Device Instance Path.
* You should find it in the textbox.

===Extracting from an SHSH===

====Img3====

There are 19 blobs in an SHSH, and the first line of every blob is the same as below:

<code>RElDRUAAAAAIAAAA********AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA</code>

The * part is the ECID(Dec) encrypted by a certain formula which is

a.Transform ECID(Dec) into ECID(Hex) such as 58608372174291 ---> 35 4D D3 34 4D D3

b.Reverse the ECID(Hex) string such as 35 4D D3 34 4D D3 ---> D3 4D 34 D3 4D 35

c.Transform the string we have got into binary such as D3 4D 34 D3 4D 35 ---> ÓM4ÓM5

d.Encode the binary with base64 such as ÓM4ÓM5 ---> 00000001

Use this formula backward (d. to a.) we can extract the * part into ECID(Dec).

====Img4====

First, get your apticket.der. There are two options:
* Copy it from your device in <code>/System/Library/Caches/apticket.der</code>.
* Extract it from an SHSH file, e.g. using <code>plutil -extract ApImg4Ticket xml1 -o - *.shsh | xmllint -xpath '/plist/data/text()' - | base64 -D > apticket.der;</code>.

Now you can use any old ASN.1 parser to display the file, such as <code>openssl asn1parse -i -inform DER -in apticket.der</code>.
To get only the ECID part, use <code>openssl asn1parse -inform DER -in apticket.der | grep -A1 ECID</code>. It should show on the second line after the colon (in '''hexadecimal''', possibly with a leading zero).

===Developer Instructions===

On OSX, call <code>AMDeviceCopyValue</code> in the [[MobileDevice Library|MobileDevice Framework]] with "UniqueChipID". It returns the ECID as a <code>CFNumberRef(kCFNumberSInt64Type)</code> object.

Example implementation (all safeties removed, will probably crash if connection fails), compile with <code>clang -F/System/Library/PrivateFrameworks -framework MobileDevice -framework CoreFoundation</code>:

<pre>
// Please ping @s1guza on Twitter if this file stops compiling/working
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <CoreFoundation/CoreFoundation.h>

// Cheap aliases to make things compile without headers
typedef void am_device;
typedef void am_device_notification;
typedef void* am_device_notification_callback_info;
extern void AMDeviceNotificationSubscribe(void(*callback)(am_device_notification_callback_info *info, void *arg), int unused1, int unused2, void *unknown, am_device_notification** notification);
extern void AMDeviceConnect(am_device *device);
extern void AMDeviceStartSession(am_device *device);
extern void* AMDeviceCopyValue(am_device *device, int unknown, CFStringRef value);

void cb(am_device_notification_callback_info *info, void *arg)
{
uint64_t ecid;
am_device *dev = *info; /* info->dev */
CFRetain(dev);
AMDeviceConnect(dev);
AMDeviceStartSession(dev);

CFNumberRef ecidRef = AMDeviceCopyValue(dev, 0, CFSTR("UniqueChipID"));
CFNumberGetValue(ecidRef, kCFNumberSInt64Type, &ecid);
printf("ECID: %llX\n", ecid);

CFRelease(dev);
exit(0);
}

int main()
{
uint32_t buf[5];
am_device_notification *notification = (am_device_notification*)buf;
AMDeviceNotificationSubscribe(&cb, 0, 0, NULL, &notification);
CFRunLoopRun();
return 0;
}
</pre>