I need to get the UDID of my iPhone Xs Max to test my App.
Apparently, That does not work on the iPhone Xs Max

- 2,805
- 1
- 22
- 42
-
1You must install profiles from a valid `https` URL. That site is not using a valid SSL certificate. – Paulw11 Sep 24 '18 at 09:51
-
Possible duplicate of [iPhone XS don't have UDID](https://stackoverflow.com/questions/52473290/iphone-xs-dont-have-udid) – iPeter Sep 24 '18 at 09:53
-
You can try this site https://webapp.diawi.com/ – Paulw11 Sep 24 '18 at 10:00
3 Answers
You are getting an error because iOS 12 requires device management profiles to be installed over a valid HTTPS connection. That site's certificate is not trusted.

- 108,386
- 14
- 159
- 186
Better to use direct System Report or XCode to find UDIDs:
Answers: https://stackoverflow.com/a/52473809/342794 or https://stackoverflow.com/a/52997294/342794
Details on using udid.io (Specific to this question)
It seems you are using udid.io (http://get.udid.io -- No "https" !!??) to get UDID without any app installation or connecting to USB. security concern, this would fail with iOS 12.
Note: Even for older iOS devices, As it installs a certificate on the mobile device. Not really a recommended way. Could be a shortcut in case you don't have an alternative. Say if you have a large pool of QA devices and don't have physical access to the devices (device farms accessible over the network) and don't care about installing a certificate from the untrusted source. Even in that case, look for an alternative to use a script to find UDID for all connected devices (https://stackoverflow.com/a/52997294/342794).
On supported iOS:
a. Asks to install a certificate that gets deleted automatically.
b. Shows UDID on the browser with an option to email
Screenshots:

- 7,410
- 7
- 34
- 45
- Open Xcode
- Go to Window
- Select Devices & Simulators
- Select your iPhone
- Copy the value for Identifier
See the answer here - https://stackoverflow.com/a/53041428/1722622

- 332
- 2
- 9