The laptop cannot power on, or unusual noises are heard.
The battery usage time is reduced and cannot maintain its original usage time.
Bright spots, lines, or a black screen appear, and colors are distorted or blurry.
Wi-Fi or Bluetooth unable to connect properly to the network or other devices.
The tablet cannot power on, overheats, or emits unusual noises.
Touchscreen malfunctions, becomes unresponsive, or produces erroneous touches.
The tablet cannot charge or charges slowly.
The power bank's charging efficiency decreases, requiring a longer time to fully charge.
The power bank's charger has unstable connections or fails to charge properly.
The charger cannot charge devices properly, or charging speed is slow.
The charger exhibits overheating during use.
The charger plug cannot securely fit into the socket or has poor connection.
The cable fails to charge or loses connection under specific angles.
The charging cable cannot connect to the device properly.
Devices connected to the expansion port are not recognized by the computer.
The plug is not firmly inserted into the computer's expansion port or fails to establish a connection.
Data transfer speed is slow when using the expansion port for data transfer.