Help
This page covers common questions, permissions, and troubleshooting tips for Lirum Device Info.
Table Of Contents
Getting Started
Lirum uses a tab bar:
- Home: an at-a-glance dashboard.
- Tools: live monitors, diagnostics, and reference tools.
- Info: device specifications grouped by categories.
- Settings: updates, purchases, and app preferences.
- About: documentation, review, contact, and share.
Info: Searching And Refreshing
- Pull down on the Info screen to reveal a search field.
- Use the refresh button (top-right) to request an immediate data refresh.
- Tap a category header to expand/collapse it.
- Tap an attribute row to open a detail sheet (formatted value, description, and copy/share actions).
Permissions
Some tools and Info categories require permissions. If permission is denied, Lirum may show placeholders or a prompt to open iOS Settings.
Common permissions include:
- Location: needed for GPS/location data.
- Bluetooth: needed for scanning/connecting, Metrics Server/Client, and some accessories.
- Microphone: needed for the Microphone tool.
- Camera: needed for the Camera tool.
- Motion & Fitness: may be required by some sensor features (device/OS dependent), including barometer data.
- NFC: needed for NFC Read/Write on supported iPhone models.
- Local Network: may be prompted on iOS 14+ when using Bluetooth features such as Metrics Server/Client.
Troubleshooting
Values Show "Loading" Or Are Blank
- Some attributes are populated asynchronously. Leave the screen open for a moment.
- Some values are device dependent, OS dependent, or restricted by iOS.
A Tool Is Missing
Tool availability can vary by device and platform (iOS/iPadOS/visionOS/macOS Catalyst). For example:
- Some sensors are not available on every device.
- Some tools are excluded on visionOS.
- Some tools can be locked behind premium or beta access, depending on your build and entitlements.
Bluetooth Scanning Finds Nothing
- Confirm Bluetooth is enabled in iOS Control Center or Settings.
- Make sure Lirum has Bluetooth permission.
- Stay on the Bluetooth screen for a few seconds and try starting a scan again.
Location Is Not Updating
- Confirm Location Services are enabled.
- Confirm Lirum has Location permission (typically "While Using").
- Try the refresh button in Info, or reopen the tool.
Accidental Language Change
If you accidentally set the app to a language you do not understand, navigate to Settings (gear icon) and look for the Force Language option under the General section. Select your preferred language to switch back.
Contact
Use About -> Contact Us to send feedback. This opens the device's email client to compose a message -- a configured mail account is required.