If your Fairphone 5 is getting uncomfortably warm, you're not alone. While it's built for longevity and repairability, it can still run hot during demanding tasks or due to software quirks. An overheating phone can throttle performance, drain the battery faster, and in rare cases, cause unexpected shutdowns.
Let's get straight to the most common fix. If your phone is hot right now, close all your apps and give it a restart. Press and hold the Power button for about 10 seconds until you see the Fairphone logo appear. This clears out any stuck processes that might be overworking the processor.
Check for Rogue Apps and Background Activity
Android apps, especially social media, navigation, or camera apps, can sometimes misbehave and keep the CPU running at full tilt even when you're not using them. Open your Settings and head to Battery to see which apps have been using the most power recently.
If you spot an app that's using a surprising amount of battery, it's likely also generating heat. Try force-stopping it from its app info page. For a broader check, go to Settings > Developer options and look at "Running services" to see what's actively working in the background.
I've found that a periodic restart, maybe once a week, helps keep background processes in check on my Android devices. It's a simple habit that can prevent a lot of minor glitches, including heat buildup.
Update Your Software
One of the best things about the Fairphone 5 is its commitment to long-term updates. These updates often include performance optimizations and bug fixes that can directly improve thermal management. Go to Settings > System > System update to check for any available downloads.
Make sure your apps are updated too through the Google Play Store. App developers frequently release patches that fix efficiency problems which can cause excessive battery drain and heat.
Adjust Your Display and Performance Settings
The screen is one of the biggest power draws on any phone. Reducing its brightness can have a noticeable impact on temperature. Also, consider lowering the screen timeout so it turns off quicker when not in use.
While the Fairphone 5 isn't a gaming powerhouse, some performance settings can help. If you have a high refresh rate display option enabled (like 90Hz), try switching it back to the standard 60Hz. The smoother motion is nice, but it makes the GPU work harder.
You can also enable a battery saver mode. This typically limits background activity and peak performance, which directly reduces heat generation. It's a great option if you're not doing anything demanding and just need the phone to cool down.
Be Mindful of Your Charging Habits
The Fairphone 5 supports 30W wired charging, which is decent but not the fastest by today's standards. Fast charging inherently generates more heat. If your phone is hot, try unplugging it for a while to let it cool down before continuing to charge.
Always use a certified 30W USB-PD charger and a good quality cable. Off-brand chargers can deliver power inefficiently, causing excess heat. And remember, never charge the phone on a soft surface like a bed or couch, as this traps the heat it produces.
Give It a Break During Intensive Tasks
If you're recording long 4K videos, using GPS navigation for an extended drive, or playing a graphic-intensive game, it's normal for the phone to get warm. The processor and other components are working hard.
In these cases, the fix is to simply pause the activity for a few minutes. Close the app and let the phone sit idle. If you're gaming, lowering the graphics settings in the game's menu can reduce the load on the GPU. The modular design means it's slightly thicker, which can actually help with heat dissipation compared to ultra-thin phones, but it still has its limits.
Remove the Case and Check Your Environment
A protective case is essential, but some thick or poorly ventilated cases can act like a blanket, trapping heat. If your phone feels hot, take the case off for a little while. This allows heat to dissipate directly into the air much more effectively.
Also, be aware of your surroundings. Don't leave your phone sitting in direct sunlight, like on a car dashboard. Avoid using it heavily when you're already in a hot environment, like at the beach or by a pool.
Consider Your Network Connection
A weak cellular or Wi-Fi signal can cause your phone to work harder to maintain a connection, which uses more power and creates heat. If you're in an area with poor reception and notice the phone warming up, try switching to airplane mode for a short period to give it a rest.
Alternatively, if you're at home or in the office, connect to a stable Wi-Fi network. It's usually less taxing on the modem than searching for a cellular signal.
As a Last Resort, Check the Battery
One of the Fairphone's standout features is its user-replaceable battery. While rare, a faulty battery can cause overheating. If you've tried everything else and the phone consistently gets hot during normal use, it might be worth inspecting.
Power the phone down completely. Pop off the back cover and remove the battery, checking for any signs of swelling or damage. If you have a spare Fairphone 5 battery, you could try swapping it in to see if the heating issue persists. This modularity is your biggest troubleshooting advantage.
If the phone is overheating specifically while charging and you've ruled out the charger and cable, a battery issue becomes more likely. Since you can buy official spares, this is a relatively straightforward fix compared to most modern phones.
Persistent overheating that isn't solved by these steps could indicate a deeper hardware fault. Given Fairphone's repairable design, you have the option to seek out replacement modules for components like the main board, but this is uncommon. Most of the time, heat on the Fairphone 5 is managed through software tweaks and mindful usage.
