Frequently asked questions about JustIN Mobile

What happens if I change my phone number?

The app will not recognize the change automatically and you will be able to continue using the key that is assigned to your old number.

When your key issuer assigns a key to your new number, to be able to use it, you will have to:

• Uninstall the app
• Download it again
• Sign in with your new telephone number

What if my phone has no reception or is powered off? Will I get the updates?

The short answer of this question is yes, but some points must be clarified.

Every key sent will have the same lifetime as the update expiration date. For example, if a user's key expires in 8 hours, the corresponding update notification will be delivered within those 8 hours. However, if your phone has no internet connection or is switched off during that interval, the message will not be delivered. Even once the phone is switched back on or the internet connection turned on again.

Will I receive several updates once I switch on my phone?

No. It doesn't make any sense to receive several updates since the most important one is always the latest. JustIN Mobile will always receive only the latest update notification from the cloud.

What happens if I lose or change my phone?

If you have an existing JustIN Mobile key and you lose or change your phone, you will be able to recover your key on your new phone.

Follow the steps below to recover your key:

• Download the JustIN Mobile app on your new phone
• Sign in with your existing phone number

Why do I see Apple Pay or "Payment card will not work" messages on iOS?

You may encounter the following Apple Pay-related behavior when using JustIN Mobile on iOS:

"Payment cards and passes in Wallet will not work automatically while "JustIN Mobile" is in use" message:

• The JustIN Mobile app disables Apple Pay while in use to prevent Apple Pay from appearing when you unlock doors
• This ensures a smooth unlocking experience without Apple Pay popups
• This only affects the main app, not widgets

Apple Pay popup with widgets:

• When using iOS widgets, Apple Pay may briefly appear because both features use similar technology
• This is normal and won't affect your unlocking or cause any payments
• The interference typically lasts only a couple of seconds

What's the difference between NFC and Bluetooth unlocking?

JustIN Mobile offers two main unlocking methods:

NFC unlocking (recommended when available):

• Fastest method - no need to open the app (although on iOS NFC tapping on a widget will open the app)
• Hold your phone close to the lock
• Available on all NFC-enabled Android devices
• On iOS: only iPhone XS+ with iOS 17.4+ in the European Economic Area (EEA)

Bluetooth unlocking (works on all devices):

• Requires opening the JustIN Mobile app first
• Tap the green unlock button and position your phone near the lock
• Works on all iOS and Android devices with Bluetooth

Why can't I use NFC unlocking on my iPhone?

NFC unlocking on iPhone has specific requirements:

• iPhone XS or newer model
• iOS 17.4 or later
• You must be located in the European Economic Area (EEA)
• JustIN Mobile app version 3.0 or later

If you don't meet these requirements, use Bluetooth unlocking instead, which works on all iPhones.

My key doesn't work sometimes - what should I try?

Try these troubleshooting steps in order:

1. For Bluetooth unlocking:

   • Make sure Bluetooth is enabled on your phone
   • Close and reopen the JustIN Mobile app
   • Position your phone closer to the lock

2. For NFC unlocking:

   • Ensure NFC is enabled in your device settings
   • Keep your phone screen unlocked (Android users check Screen unlocking setting)
   • Hold your phone directly against the lock reader

3. General troubleshooting:

   • Check for app updates in your app store
   • Restart your phone
   • Pull down to refresh your key list in the app

If problems persist, contact your key issuer.

Can I use JustIN Mobile without an internet connection?

Yes, once you've downloaded your keys, you can unlock doors without an internet connection. However:

• You need internet to initially receive keys and updates
• If your key expires while offline, you won't receive the renewal until you're back online

Why do I see "This number has no key assigned" even though I should have access?

This can happen when:

1. Wrong phone number: The number you entered doesn't match what your key issuer has on file
2. Timing issues: Your access hasn't started yet (check your check-in time)
3. Key not issued yet: Your key issuer hasn't created your key in their system
4. Booking problems: There may be an issue with your reservation or access request

What to do:

• Double-check your phone number
• Contact your key issuer (hotel, employer, building manager)
• Verify your booking or access dates

Can I share my digital key with someone else?

No, digital keys are tied to specific phone numbers and cannot be shared or transferred to other people. Each person who needs access must have their own key assigned by the key issuer.

If someone else needs access, they should contact the key issuer directly to request their own key.

How long do digital keys last?

Key duration depends on your key issuer:

• Hotels: Matches your stay dates
• Offices: Often match employment period or project duration
• Temporary access: May be for set hours or days

Keys automatically expire at the set time. You'll need to request a new key from your issuer if you need extended access.