If you are unable to use the swipe-up gesture to unlock your iPhone, the following troubleshooting procedures may be of assistance:

Force Restart: Frequently, a force restart can resolve software issues and transient glitches that are causing the swipe-up gesture to malfunction. To initiate a hard restart on an iPhone 8 or later, tap and hold the Volume Up and Volume Down buttons simultaneously. After that, maintain pressure on the side button until the Apple logo appears. Press and hold the Side and Home buttons concurrently until the Apple logo appears on an iPhone 7 or earlier.

Activate Control Center on Lock Screen: Disabling the Control Center on the lock screen could potentially disrupt the swipe-up gesture. To activate Control Center, navigate to Settings > Touch ID & Passcode or Face ID & Passcode on the lock screen. In the “Allow Access When Locked” section, locate the switch adjacent to “Control Center” and toggle it to the green setting.

Similarly, disabling access to the Control Center within an application may have an impact on the ability to perform a swipe-up gesture. Go to Settings > Control Center to enable access to the Control Center from within applications. Toggle the switch labeled “Access Within Apps” to the green position.

Updating the iOS version may potentially lead to compatibility complications or software flaws that impact the functionality of the swipe-up gesture. Navigate to Software Update under Settings > General to identify any available software updates. Install any available updates on your iPhone, and then reset the device once the process is finished.

Eliminate Problematic Options from the Control Center: An excessive number of options added to the Control Center may result in interference with the swipe-up gesture or overlap. By navigating to Settings > Control Center, attempt to remove some of the less frequently used components from the Control Center. To eliminate options from “Customize Controls,” select the red minus signs next to them.

Disable VoiceOver: VoiceOver is an accessibility feature for screen readers that could potentially be impeding the functionality of the swipe-up gesture. Navigate to Settings > Accessibility > VoiceOver to deactivate VoiceOver. Invert the switch to the deactivated state.

Eliminate Defective Covers or Cases: On occasion, an overly dense or ill-fitting cover or case may impede the swipe-up motion. Destroy the case or cover to determine whether the problem continues.

Reconfigure All Settings: Attempt to reconfigure all settings on your iPhone if none of the preceding solutions work. While personal data will remain intact, all configurations will be reverted back to their initial values. Navigate to Settings > General > Transfer or Reset iPhone > Reset > Reset All Settings to erase every setting.

Restore to factory settings via iTunes: If the problem persists despite a complete reset of the device’s settings, it may be necessary to restore the iPhone to its initial state using iTunes. It is crucial to have a backup of your iPhone’s data before continuing, as doing so will delete everything. Connect your iPhone to your computer and launch iTunes in order to restore it. After selecting your iPhone, pick the “Restore iPhone” link. To finish the restoration procedure, adhere to the on-screen guidance.

Contact Apple Support for additional assistance if the problem persists despite attempting each of the aforementioned solutions. They might also be capable of identifying the fundamental source of the issue and suggesting further troubleshooting measures or a repair service.