I don't know exactly for what reasons, but when I tested one Shortcut ChatGPT for Siri, I found that iPhone not responding to Hey Siri. Voice commands with “Hey Siri” were ignored, as if the iPhone didn't even hear the voice assistant Apple.
When Siri it doesn't respond when you want to give it voice commands, the causes can be multiple. First of all, you have to check if not Siri is disabled in the iOS settings, or if Siri is set to answer you even when the iPhone is on Silent Mode.
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What to do if the iPhone does not respond to Hey Siri?
Daca Siri does not respond on your iPhone to the voice command of Hey Siri, first check if the voice assistant Apple is enabled on the device.
Enable Siri on iPhone to order "Hey Siri"
Go to iOS in: Settings → Siri & Search → Listen for “Hey Siri” → Enable Siri.
After pressing "Enable Siri", you will need to follow the steps to set up Siri. You will be given some texts that you must read out loud, because Siri to be able to understand you.
Once finished configuring Siri, for the command Hey Siri, you can do the first tests.
Deactivation and activation Siri on the iPhone
If you already had Crab activated on iPhone, but it did not respond to the voice command Hey Siri, you can try to disable and re-enable the option Listen for “Hey Siri”.
Activate Siri when the iPhone is on Silent Mode
When the iPhone is on Silent Mode, Siri will not respond to requests from the order"Hey Siri". To activate "Hey Siri” when iPhone is on silent mode, go to iOS in: Settings → Siri & Search → Siri Responses. Here you will need to activate the option "Prefer Spoken Responses” to hear the answers Siri and in Silent Mode.
Once this option is activated, Siri will respond to your order"Hey Siri", even if the iPhone is on silent mode.
In case the above settings do not give results, you can delete your interaction history with Siri, then restart the iPhone. For me this method was the solution.
