If there are no firmware updates available to resolve your detection issue, please
contact your Tableau reseller or OpenText Customer Support to report your issue or
ask for further assistance.
6.2.4 Problems detecting Apple devices in target disk mode
Accessing drives inside Apple devices is most simply accomplished by putting the
Apple device into target disk mode (TDM) and then connecting it to the USB source
port on your TX1 using a quality USB-C to USB-A adapter cable. Problems with
these types of connections are not uncommon. The table below lists the most
common issues seen when trying to mount and acquire an Apple computer in TDM.
Problem Corrective Action
No detection on TX1;
Apple computer boots to
normal user login screen
(not in target disk mode)
Pressing the “T” key on the keyboard during bootup is how
Apple computers are put into target disk mode. This mode is
indicated by connection logos moving around the screen that
show the different ways an external device can be connected
to the target Apple computer (dependent on the available
connections on that computer).
If the Apple device does not enter target disk mode after
pressing the “T” key during bootup, it may be defective and
alternative methods for memory acquisition may be required
(such as drive removal, if supported, or third party services
that specialize in hardware based forensic data retrieval).
With the advent of the T2 secure enclave interface, it's also
possible that the System Preferences on the Apple device are
set to block remote booting, which disables entry into target
disk mode. If possible, change the System Preferences to
allow remote booting, and then retry the TDM boot sequence.
No detection on TX1;
Apple device is in TDM,
but more than the USB
logo is shown on the
Apple screen
This condition indicates that the Apple device is not properly
connected to a powered-on TX1. This is most commonly
caused by the use of a defective cable between the Apple
computer and TX1. See “Using automated acquisition”
on page 86 for recommended cables. If you are already using
the recommended cable and it has been used successfully in
the past, try gently bending the cable at each end or in the
middle to see if the logo pattern on the Apple screen changes.
No detection on TX1;
Apple device is in TDM
with only the USB logo
on the screen
When connecting an
Apple computer to TX1,
the order of operations
matters.
The recommended steps are as follows:
Power-on the Apple computer while pressing the “T” key
until only the USB logo appears on the screen.
Power on TX1 and ensure it is fully booted to the Home
screen.
Connect the interface cable to the Apple computer first, and
then to the USB-A connector on the source side of TX1.
6.2. Troubleshooting common problems
ISTX240300-UGD-EN-1
User Guide
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