When your Fairphone 5's Settings app keeps crashing, it can lock you out of managing your phone. This usually happens because of a temporary software glitch or corrupted app data. The good news is, with a modular phone like the Fairphone 5, you have a few extra tricks up your sleeve.
Restart Your Fairphone 5
Start with the classic fix. A simple restart clears out temporary system glitches that can cause apps to misbehave. Just press and hold the power button until the power menu appears, then tap "Restart."
If the Settings app is so frozen you can't even get to that menu, you'll need to force a restart. On the Fairphone 5, you can do this by pressing and holding the power button for at least 10 seconds until the screen goes black and the phone reboots.
Clear the Settings App Cache and Data
Corrupted cache files are a common culprit for app crashes. Since you can't open the main Settings app, you'll need to access the app management screen a different way. Swipe down from the top of your screen to open the notification shade, then tap the gear icon in the top right.
If that also crashes, go to your app drawer and find the "Settings" app icon. Press and hold on it, then tap the "i" or "App info" icon that pops up. This takes you directly to the Settings app's storage page. From there, tap "Storage & cache" and then "Clear cache."
If clearing the cache doesn't work, you can try "Clear storage" or "Clear data" on that same screen. Be warned, this will reset all your Settings app preferences to default, but it won't delete your personal files like photos or messages.
Check for a System Update
Fairphone is committed to long-term support, with promises of 8+ years of software updates. Sometimes, a bug causing the Settings to crash is fixed in a newer version of Android or a Fairphone security patch. You need to check for updates, but you can't get to the normal menu.
Try asking Google Assistant. Say "Hey Google, check for system updates on my phone." If your phone is set up for it, this voice command can sometimes trigger the update check process directly. Alternatively, you can try connecting your phone to a computer and using the Android Debug Bridge (ADB) tool to check for updates, though this is a more technical route.
Boot Into Safe Mode
This step helps you figure out if a recently downloaded third-party app is causing a conflict with the system. To boot your Fairphone 5 into Safe Mode, first press and hold the power button until the power off menu appears.
Then, press and hold the "Power off" option on your screen. A prompt will ask if you want to reboot into Safe Mode. Tap "OK." Your phone will restart, and "Safe Mode" will appear in the bottom corner. In this mode, all third-party apps are disabled.
Try opening the Settings app now. If it works perfectly in Safe Mode, you know a downloaded app is the problem. You'll need to uninstall apps one by one (starting with the most recent) to find the culprit.
The Modular Advantage: Battery Pull
Here's where your Fairphone 5's design really helps. If your phone is completely unresponsive and the force restart isn't working, you can perform a hard reset by removing the battery. This is a last resort for a frozen state.
Flip your phone over and use your fingernail or a plastic tool to pop off the back cover. You'll see the user-replaceable battery. Gently lift it out of its connector, wait about 30 seconds, and then reinsert it. Snap the cover back on and press the power button. This cuts all power and can clear a deep system hang that a soft reset can't.
Reset App Preferences
This is a less nuclear option than a full factory reset. It resets permissions, default apps, and background data restrictions for all apps without deleting any of your personal data. Since you can't access the main settings, you'll need to use the search function.
On your home screen, swipe down to open the global search bar. Type "Reset app preferences." This should show a direct shortcut to that specific settings page. Tap it, confirm the reset, and then restart your phone. I've seen this fix weird conflicts between system services and the Settings app itself.
Consider a Factory Reset
If you've tried everything and the Settings app is still unusable, a factory reset is the final step. This erases all data on your phone, so it's crucial to back up first. If you can't use the settings to back up, ensure your photos are synced to Google Photos and check that important contacts are saved to your Google account.
To initiate the reset, you'll need to boot into Recovery Mode. First, power off your Fairphone 5 completely. Then, press and hold the power button and volume up button simultaneously until the Fairphone logo appears. Use the volume buttons to navigate the menu and the power button to select "Wipe data/factory reset." After the process completes, select "Reboot system now."