5.4 - CompTIA A+ Core 1

Poor battery health

Device requires actions such as using airplane mode, disabling services, uninstalling power-hungry apps, or replacing the battery.

Swollen battery

A battery that has expanded due to gas buildup, posing a fire risk; it should be immediately replaced.

Improper charging

Issues in the charging process can arise from obstructed cables or damaged interfaces; check cables and replace as needed.

Poor/no connectivity

Solutions include checking cellular signal range, moving closer to a Wi-Fi access point, and using less congested channels.

Broken screen

Resolution involves screen replacement and caution due to sharp broken glass.

Liquid damage

Indicated by a color change in the liquid contact indicator; requires powering down, removing phone parts (e.g., batteries, SIM cards), and drying with desiccant for at least 24 hours.

Overheating

Devices may shut down to prevent damage; resolve by checking for CPU-intensive apps and avoiding usage in direct sunlight.

Digitizer issues

Happens when touchscreens are unresponsive; often resolved by resetting the device.

Physically damaged ports

Damage from impact can prevent charging; typically requires replacement of the system board.

Malware

Symptoms include unusual app behavior and excessive battery use; resolve by installing security scanners.

Cursor drift/touch calibration

Random cursor movement; can be fixed using a touch calibration application.

Unable to install new applications

Common issues include checking storage, network connectivity, compatibility, and clearing app caches. Also try reauthenticating (logging out and logging back in again).

Stylus does not work

Should check battery, Bluetooth pairing, hardware tip, or reset the device.

Degraded performance

Can be resolved by updating software, clearing storage, replacing faulty hardware, and reducing background applications.