PUBG Mobile Phone Overheating: Fix Heat, Lag and Battery

PUBG Mobile phone overheating has a simple cause: the game keeps the processor, the graphics chip and a bright screen at full load for a whole match, and a phone has no fan to carry that heat away. The fix that works on any device is to ask for less. Set Graphics to Smooth, lower Frame Rate by a step or two, turn the brightness down, and do not charge while you play. The same steps slow battery drain and remove most of the lag that shows up late in a session.

Why the phone heats up

In every moment of a match the game draws a large map, other players, effects and sound, and it talks to the server the whole time. All of that work becomes heat inside the chip. The screen adds more, and so does the mobile data radio when the signal is weak.

A phone can only lose heat through its body. When heat builds up faster than it leaves, the phone protects itself by slowing the processor down. You feel this as a falling frame rate and touches that respond late. Some phones also dim the screen or pause charging until they cool.

This is why a match that ran well at the start begins to stutter later on. Nothing is wrong with your internet. The phone is hot and has slowed itself on purpose.

Settings that fix PUBG Mobile phone overheating

Open the settings and go to the graphics tab (Graphics & Audio). Change these in order, and stop when the phone stays comfortable to hold.

1. Set Graphics to Smooth. It is the lowest quality level and the biggest single saving. Many players also find enemies easier to see with fewer effects on screen.
2. Lower Frame Rate one step. If you play on the highest option your phone offers, pick the one below it. A steady lower frame rate plays better than a high one that collapses when the phone heats.
3. Turn off anti-aliasing and shadows if your version lets you. Both cost processing power and add little in a fight.
4. Go one step lower for long sessions. For a whole evening of ranked matches, one more step down in Frame Rate keeps the last match as smooth as the first.

If your phone supports high frame rates and you want to use them, our guide to 90 FPS in PUBG Mobile explains what they cost in heat.

Change one setting at a time and play a full match before you judge it. Heat builds slowly, so two minutes in the lobby tell you nothing.

Habits outside the game that keep it cool

• Do not charge while playing. Charging warms the battery and the game warms the chip, and the two add up. Charge first, then play. If you must stay plugged in, a slow charger heats the phone less than a fast one.
• Take the case off. A thick case holds heat against the back of the phone. Playing without it is the simplest cooling there is.
• Lower the screen brightness. Use the phone's own brightness slider and go as low as you can while still seeing enemies clearly.
• Stay out of the sun and off soft surfaces. Direct sunlight, a blanket or a pillow all stop the phone from losing heat.
• Close other apps before you start. Downloads, video calls and navigation running in the background share the same chip.
• Prefer Wi-Fi. On mobile data with a weak signal the phone works harder to stay connected, which heats it and drains the battery.
• Rest between matches. Lock the screen for a minute or two after a long game instead of waiting in the lobby.

A clip-on cooling fan can help, because it really does pull heat off the back of the phone. Apps that promise to cool the phone or speed it up cannot change the hardware. At most they close background apps, which you can do yourself.

Never put a hot phone in a fridge or on ice. Fast cooling can form moisture inside it. Let it cool in open air.

PUBG Mobile battery drain: what is normal

A heavy 3D game uses a lot of power, so some PUBG Mobile battery drain is normal and no setting removes it. What you can do is waste less:

• Frame rate is the biggest lever. Fewer frames each second mean less work and less power.
• Brightness is the second. The screen is one of the hungriest parts of a phone.
• A weak signal costs more than a strong one, so play where reception is good.

Be careful with the phone's power saving mode. On many phones it limits performance, which brings the stutter back. Lowering the game's own settings gives a smoother result.

Heat also ages a battery. A battery that often gets very hot loses capacity sooner, so every step that cools the phone protects the battery too.

Lag on your phone: heat or internet?

Players use the word lag for two different problems, and each needs its own fix.

• Frame drops. The whole picture stutters or slows, usually after the phone has warmed up. The steps above fix this.
• Network lag. The picture is smooth, but enemies jump from place to place, shots land late and the ping number is high. That comes from the connection. See how to fix high ping in PUBG Mobile.

If PUBG Mobile lag on your phone starts in the first minute, before any heat, check the free storage and pending game updates as well. A nearly full phone runs everything slowly.

Frequent questions

Why does my phone get so hot when I play PUBG Mobile?

The game runs the processor and the graphics chip hard for the whole match, with a bright screen and a constant connection. Lower the Graphics and Frame Rate settings and the phone has less work to turn into heat.

Is it bad to play PUBG Mobile while charging?

It makes the phone hotter than either playing or charging alone, and repeated heat wears the battery. Charging before you play is the better habit.

Does PUBG Mobile drain the battery fast?

Yes, like any heavy online game. A lower frame rate, a dimmer screen and a good signal make a clear difference.

Why does PUBG Mobile lag after a few matches?

Most often because the phone has heated up and slowed its processor to protect itself. Let it cool, then lower the frame rate one step.

A cool phone first, then the extras

Once the game runs smoothly from the first match to the last, the rest is taste: the Royale Pass, outfits and weapon skins, all bought with UC. Mas4Games loads PUBG Mobile UC to global accounts by player ID, and also has UC codes that you redeem yourself. For a top-up by ID the store asks only for your player ID, never for your password.