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Cause:

The flash-loader which is extracted from the firmware file, is sent to the phone prior to flashing, fails to reboot the device. The structure of the flash-loader has likely changed due to iOS 12.1.

Resolutions:

There is an on-going issue with certain model iPhones where user interaction is required in order to run the erasure successfully if the iOS firmware is updated to iOS 12.1.  The root cause for this behavior is currently identified as an issue with USB interfaces introduced by iOS 12.1.  As this issue is caused by the iOS firmware, the fix for this behavior should be provided by Apple.  Blancco has taken certain steps to help customers process iPhones in lieu of this firmware release.  

Resolutions:

Apple released firmware version 12.1.1 on December 5th, 2018, which Blancco will be able to flash, without workaround, in BMDE Blancco resolution:  3.8.4, due out Dec 11th, plans to include a Factory Reset option included in the workflow, which places the phone in a boot mode Blancco can recognize.Apple resolution:  Apple is planning to address the issue in 12.1.x, due out on Dec 11th., 2018.  The workaround below will only be applicable IF 12.1 is flashed onto the device. 


Workarounds:

Option 1: Disconnect and connect device a couple of times during the erasure.

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Due to the impact of frequent changes from Apple firmware releases, it is HIGHLY recommended to set the iOS firmware download settings to ‘disable’ automatic download, and instead use the iOS version.xml from the Blancco server so we are using the last "known good" release from Apple.  More information on available settings can be found HERE.

Info

Update Dec 7, 2018:

Blancco has confirmed that BMDE 3.8.4, due out December 11th, 2018, along with Apple firmware release 12.1.1, will not have issues requiring customers to re-plug the connection.


Update Dec 6, 2018:

Apple has released 12.1.1 last night, earlier than anticipated.

Current testing with BMDE indicates that 12.1.1 does not address the erasure issue with 12.1, and also requires the device to be manually reset to get into recovery mode (home button + power button for 5-10secs), then connect to iTunes.

Recommendation is to use iOS version 12.1 for now.

Manage the source for the Apple version information using the BMDE 3.8.3 feature, as described in the notes below on Nov 28th, ensuring that the source is changed back to Blancco.

Solution – Blancco is still planning to release 3.8.4 on Dec 11th, which gives users the ability to perform an iOS Factory Reset as part of the automated workflow, however, the true fix will need to come from Apple.

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