/Applications/CheckerBoard.app

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Revision as of 09:36, 19 March 2021 by Musicguy32 (talk | contribs) (Further documenting application’s unusual behaviour.)
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Main menu
Info menu
WiFi menu, shown after tapping "Start Diagnostics"
Exit Diagnostics button

Summary

This (hidden) application is usually accessed by powering off the device, then after plugging in a charger, start holding down the volume up button and home button. It is present on all iOS 10.3 devices.

It looks to be sending data to https://idiagnostics.apple.com, however due to certificate pinning, the data being sent is unknown. It is known to connect to AST2, an internal diagnostics web app, for diagnostics.

Other Information

  • It may be worth noting that the time displayed at the top-left (in the case of an iDevice without Airplane Mode) of the screen is Pacific Standard Time, regardless of user preferences.
  • When opened via a Modified Shortcut, it crashes, defaulting to SpringBoard.

Localization strings

Extracting its English localization strings yields these:

/* ARE_YOU_SURE */
Are you sure you want to exit Diagnostics?

/* CANCEL */
Cancel

/* CHOOSE_OTHER_FOOTER */
Choose Another Network

/* CHOOSE_WIFI_HEADER */
Choose a Wi‑Fi Network

/* CHOOSE_WLAN_HEADER */
Choose a WLAN Network

/* COULD_NOT_FIND_NETWORK_TITLE */
Could not find the network “%@”

/* DIAGNOSTICS */
Diagnostics

/* DIAGNOSTICS_DESCRIPTION */
Diagnostics allow Apple to identify potential hardware and software issues with this device.

/* DISMISS */
Dismiss

/* DONE */
Done

/* EMERGENCY_CALL */
Emergency Call

/* ENCRYPTED_NETWORK_PROMPT */
Enter the password for “%@”

/* ENCRYPTED_NETWORK_TITLE */
Enter Password

/* EXIT_DIAGNOSTICS */
Exit Diagnostics

/* FAILED_NETWORK_PROMPT */
Failed to join “%@”

/* INCORRECT_PASSWORD_TITLE */
Incorrect password for “%@”

/* JOIN */
Join

/* JOINED_NETWORK_PROMPT */
Joined network “%@”

/* JOINING_NETWORK_PROMPT */
Joining “%@”…

/* NEXT */
Next

/* NONE */
None

/* NO_NETWORK_CONNECTION_MESSAGE_WIFI */
The Wi‑Fi network you selected is not providing an Internet connection. Change your settings or choose a different network.

/* NO_NETWORK_CONNECTION_MESSAGE_WLAN */
The WLAN network you selected is not providing an Internet connection. Change your settings or choose a different network.

/* NO_NETWORK_CONNECTION_TITLE */
No Network Connection

/* OK */
OK

/* OTHER_NETWORK_NAME */
Name

/* OTHER_NETWORK_PLACEHOLDER */
Network Name

/* OTHER_NETWORK_PROMPT */
Enter network information

/* OTHER_NETWORK_TITLE */
Other Network

/* PASSWORD */
Password

/* SECURITY */
Security

/* SERIAL_NUMBER */
Serial Number

/* SHUT_DOWN */
Shut Down

/* START_DIAGNOSTICS */
Start Diagnostics

/* TEMPERATURE */
Temperature

/* THERMAL_ALERT_STRING_IPAD */
iPad needs to cool down before you can use it.

/* THERMAL_ALERT_STRING_IPHONE */
iPhone needs to cool down before you can use it.

/* THERMAL_ALERT_STRING_IPOD */
iPod needs to cool down before you can use it.

/* TRY_AGAIN_MESSAGE */
Please try again later.

/* UNABLE_TO_JOIN_NETWORK_TITLE */
Unable to join the network “%@”

/* UNABLE_TO_JOIN_TITLE */
Unable to join “%@”

/* WEP */
WEP

/* WIFI_SETTINGS */
Wi‑Fi Settings

/* WLAN_SETTINGS */
WLAN Settings

/* WPA */
WPA

/* WPA2 */
WPA2

/* WPA2_ENTERPRISE */
WPA2 Enterprise

/* WPA_ENTERPRISE */
WPA Enterprise

Children

Folders


Files

Parents

(root)/Applications