iOS 11.4.1 beta - new restrictions


#1

iOS 11.4.1 has been released into beta on friday

This version includes a new restriction for Disabling “USB Restricted mode” (for supervised devices only)

2018-06-05_13-59-56

<key>allowUSBRestrictedMode</key>
			<false/>

USB Restricted Mode was implemented with iOS 11.4 and automatically disables access to lightning port 7 days after device was last unlocked.

With this restriction it is possible to disable this functionality.

More information about USB Restricted mode below:


#2

Pretty cool!

As usual the documentation is a bit odd on the restrictions topic. It shows that this will be available in iOS 11.5.


#3

Strange, this restriction seems to do nothing in 11.4.1 Beta. After locking the device and waiting for one hour I could still get it to connect to Configurator. Anyone had any luck with this?


#4

Will need to wait for 7 days after the last unlock unless you disabled the feature, then it will not work at all. (Defaults to true)


#5

You’re right, but it seems this is to be changed to 1 hour in 11.4.1. At least according to what is visible in Settings in the Beta.

32

The ElcomSoft Blog author also released another article about this change where he mentions 1 hour as well. At least that’s how I understand it.

I’ll keep testing, maybe it is still WIP.