Troubleshoot Mobile OS and App Software Flashcards
Lesson 18B (22 cards)
Access the iOS Control Center (left) by swiping from the top-right and Android notification drawer by swiping from the top.
In iOS (left), enabling the rotation lock from Control Center prevents the device from autorotating.
Mobile device troubleshooting
relies on the Settings app, with navigation varying between iOS and Android. On Android, users access settings via the notification bar (swipe down) or app list (swipe up), while iOS users open the Control Center by swiping from the top-right (newer models) or bottom of the screen.
reboot
is a reliable troubleshooting method for resolving performance or stability issues on mobile devices.
Powering off closes applications and clears RAM without affecting stored data, often restoring unresponsive or frozen systems. It is one of the first steps to try when encountering malfunctioning apps or slow performance.
Reboot
To restart an iOS device
hold the Side/Top button, power it off, wait a minute, then turn it back on; for a forced restart, press Volume Up, Volume Down, then hold the Side/Top button until the screen goes black.
To restart an Android device
hold the Power button for a few seconds to bring up the Power Off prompt. If the touchscreen is unresponsive, perform a forced restart by holding the Power button for 10 seconds (button combinations may vary by device). To boot into Safe Mode, tap-and-hold the Power Off message, which disables third-party apps while keeping core services running.
factory reset
erases all data, apps, and settings; on iOS, it’s done via Settings > General, while on Android, it’s found under Settings > System > Advanced (varies by device).
Troubleshooting Device
If rebooting doesn’t fix the issue, systematically troubleshoot by checking updates, reviewing error messages, running diagnostics, scanning for malware, and, if necessary, performing a factory reset.
OS update failure
OS update failures, emphasizing key steps like verifying compatibility, ensuring a stable power and network connection, restarting the device, and checking storage capacity.
Additional strategies include disabling VPNs, running built-in troubleshooters, manually downloading the update, verifying system logs, and using recovery tools if needed. A factory reset is the last resort if the update continues to fail.
A device that randomly reboots
may have battery or hardware issues, insufficient storage, outdated software, or a faulty app causing instability.
A slow device
may be caused by excessive background activity, resource-heavy apps, or insufficient storage, and can often be improved by closing apps, freeing space, or monitoring resource usage.
screen unrotates
Ensure rotation lock is disabled, avoid touching the screen, close interfering apps, restart the device, check sensor functionality, update the OS, and consider hardware issues if autorotation still fails.
To troubleshoot app issues
check memory usage, restart the device, close unnecessary apps, update the OS, clear cache/data, and reinstall if the problem persists.
app issues
If an app remains unresponsive
clear the cache, reboot the device, check for updates, verify compatibility with the OS, ensure sufficient storage, and confirm a stable internet connection.
app issues
To uninstall or disable an app on Android
go to Settings > Apps or long-press the app icon and drag it to Uninstall. Removed apps can be reinstalled via the store, as previous purchases remain linked to the user’s account.
If an app issue persists
uninstall and reinstall it via Settings or the home screen, ensuring compatibility and previous purchases remain accessible through the store.
For mobile connectivity issues
check for hardware interference, ensure Wi-Fi/Bluetooth are enabled, restart the device, forget and reconnect to networks, update firmware, and verify settings.
Weak signals
can result from distance, interference, or low battery. Move the device closer to the access point, remove obstacles, or adjust how it’s held to improve reception.
Confirguration issues
Check that airplane mode isn’t enabled, verify Wi-Fi and Bluetooth settings, forget and reconnect networks, ensure compatibility with 802.11 standards, and update the OS or firmware if needed.
near-field communication (NFC) payment issues
unlock the device, ensure NFC is enabled for the wallet app, confirm airplane mode is off, and hold the device closer to the reader for a longer duration.
AirDrop issues
ensure the feature is enabled under Settings > General > AirDrop, verify the recipient allows transfers, and confirm the devices are within Bluetooth range.
Airdrop
It uses a combination of Bluetooth and Wi-Fi to transfer data wirelessly on Apple products.
