If you have upgraded to the new iPhone XS or iPhone XS Max then Home screen not working in landscape mode is not the only issue you’re going to encounter. Apple seems to have made it more difficult to get iPhone XS and iPhone XS Max UDID (an acronym for Unique Device ID).
UDID is used to register iOS devices in the Apple Developer portal for testing iPhone apps or to install iOS beta software updates.
Unfortunately, you can no longer use the iTunes method to get iPhone XS and iPhone XS Max UDID. For older iPhone models, you could get the UDID using the following steps:
Connect your iPhone to your Mac or Windows PC and launch iTunes. In iTunes, click on the iPhone icon at the top and navigate to the Summary tab. Click on the Serial Number label until it changes to UDID, this will show the Identifier field and the 40 hex character UDID. Press Command+C (Windows users – Ctrl + C) to copy the UDID to your clipboard.
But we have found a way to find iPhone XS and iPhone XS Max UDID, and it is not very straightforward. We’re not sure if it is a bug, but it seems odd that Apple would miss something like this. So until Apple fixes the issue, here’s how to find iPhone XS and iPhone XS Max UDID at least on a Mac:
- Connect your iPhone to your Mac.
- Navigate to -> About This Mac.
- Click on System Report and select USB.
- Click on iPhone, and copy the value next to the Serial Number label.
- Copy and paste the value. You then need to add a – after the 8th digit.
- This is the UDID for the iPhone XS and iPhone XS Max.
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