Common Mobile Problems and Fixes: Ghost Touch, Hanging, Water Damage and More
Most phone problems, such as hanging, random restarts and low speaker sound, can be fixed at home with a restart, an update, freeing up storage or careful cleaning. Ghost touch and water damage are more serious and often need a service centre. This guide lists the common problems, the safe fixes to try first, and when to stop and get the phone repaired.
Updated 11 November 2026
Ghost touch meaning and solution
Ghost touch means the screen reacts to touches you did not make. Apps open on their own, text types by itself or the phone scrolls randomly. Common causes: - A bad screen protector or dirt trapped under it - A cheap charger causing electrical noise while charging - A damaged or non-original replacement screen - A software bug after an update - Moisture inside the phone
Ghost touch problem solution, step by step: - Remove the screen protector and cover, clean the screen and test again - Unplug the charger and see if it stops - Restart the phone and install any pending update - Boot into safe mode to see if an app is causing it - If it continues, the display or touch layer is faulty and needs a service centre
When buying used, test for ghost touch by leaving the phone unlocked on a table for a minute and drawing slowly across the whole screen.
Mobile hanging problem: why it happens and the fix
A phone hangs or freezes when it runs out of free memory, storage or cooling. The usual causes are full storage, too many apps running, an old phone on new software, or heat in summer.
Phone hanging problem solution: - Keep at least 10–15% of storage free. Move WhatsApp videos and photos to Google Photos, iCloud or a computer - Clear the cache of heavy apps like WhatsApp, Facebook and TikTok - Uninstall apps you do not use, especially cleaners and boosters - Restart the phone at least once a week - Update the software and apps - Remove live wallpapers and heavy launchers
If the phone still hangs, back up and do a factory reset. If an old phone hangs even after a reset, the hardware is simply too slow for today's apps.
Phone restarting problem solution
A mobile auto restart problem can come from software or hardware: - A faulty app: boot into safe mode. If the restarts stop, uninstall recent apps one by one - Full storage or a corrupt update: free up space and install the latest update - Overheating: phones restart to protect themselves in heat. See our phone overheating fix (Phone Overheating: Causes, Fixes and When to Worry) - Worn battery: an old battery cannot supply enough power under load, so the phone shuts off, often at 15–30%. See phone battery draining fast (Phone Battery Draining Fast: Why It Happens and How to Fix It) - Hardware damage after a drop or water exposure
If the phone restarts in a loop and will not reach the home screen, take it to a service centre. Do not keep forcing it on and off.
Mobile water damage symptoms
Water damage does not always show at once. Look for: - Fog or moisture under the camera glass or screen - Muffled or crackling speaker and microphone - Charging port errors such as 'moisture detected' that do not clear - Lines, spots or flicker on the display - Random restarts, ghost touch or a battery that drains fast - Corrosion, green or white marks, in the SIM tray or charging port
When buying used, also check the liquid damage indicator in the SIM tray where the model has one. A red or pink indicator means the phone got wet. Water resistance ratings like IP68 do not cover all water damage. Our IP68, IP67 and IP69 guide (What Is IP68 in Mobile? IP67 vs IP68 vs IP69 Water Resistance) explains what they mean.
Mobile water damage solution: what to do and avoid
If your phone falls in water: - Take it out fast and switch it off. Do not charge it - Remove the case and SIM tray - Wipe it dry and leave it in a dry, airy place, screen down, for at least 24 hours. A fan helps - Do not use a hair dryer, an oven or direct sun, which can damage the battery and screen - Rice does not draw out water inside the phone and can leave dust in the ports. Air drying works as well or better
Salt water, tea or juice are worse than clean water. Take the phone to a service centre quickly for cleaning before corrosion starts. Note that 'water pack' in the market means something else, see water pack phone meaning (Water Pack iPhone Meaning in Pakistan (and How to Check One)).
Mobile speaker ki awaz kam ho gayi? How to clean the speaker
Low speaker volume is usually caused by dust, lint or water in the grille, not a broken speaker. Pocket lint builds up quickly, especially in summer dust.
How to clean a mobile speaker safely: - Switch the phone off - Use a soft, dry toothbrush to brush the grille gently - Press a piece of tape or soft putty against the grille and lift it to pull out dust - Do not push pins, needles or compressed air deep into the holes. They can tear the speaker mesh - If water got in, play a low-frequency sound or let the phone dry face down
Also check Settings: turn off Bluetooth in case audio is going to earbuds, and check sound settings like Dolby Atmos or Adapt Sound. If one speaker is still quiet, it may need replacing.
Other quick fixes worth trying first
Before paying for a repair, try these: - Restart: fixes many network, Wi-Fi and app problems - Update: brands fix bugs often - Reset network settings: helps with Wi-Fi and signal problems - Safe mode: shows if a downloaded app is the cause - Clean the charging port gently with a wooden toothpick if charging is loose, see phone charging slow fix (Phone Charging Slowly: Why It Happens and How to Fix It)
Back up your photos and WhatsApp before any reset.
Checking a used phone for these problems
These problems are common reasons people sell phones cheaply. Before you buy a used phone, test for ghost touch, check for water marks in the SIM tray, play audio at full volume, leave it running a camera for a few minutes to see if it heats or restarts, and check battery health. Our checklist on how to check a new or used phone (How to Check if a Mobile Phone Is New or Used) covers every step. Our Non Custom box pack phones are new, and every order has a 7-day checking warranty.
