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Zorluk: OrtaMobile Device Hardware and Display Issues

A corporate user brings a mobile smartphone to the IT help desk reporting that the back glass enclosure is expanding away from the frame and the screen periodically flickers. Upon inspection, the technician observes physical swelling of the enclosure. Which of the following initial actions should the technician take to handle this mobile hardware issue safely and effectively? (Select TWO.)

  1. Immediately power down the device and store it in a fire-safe, non-flammable container to mitigate thermal runaway risks.Cevap
  2. B
    Perform a complete deep discharge cycle by running high-drain benchmark applications until the device powers off automatically.
  3. Replace the damaged lithium-ion battery assembly following appropriate safety guidelines and hazardous material disposal procedures.Cevap
  4. D
    Replace the screen's high-voltage CCFL backlight inverter board to resolve the display flickering issue.

Cevap

The technician should immediately power down the device and isolate it in a fire-safe container, and then proceed with replacing the swollen lithium-ion battery following proper safety and hazard protocols.
Physical separation of a smartphone casing combined with display distortion strongly points to a swollen lithium-ion battery. The correct immediate safety step is powering off the smartphone and isolating it in a fire-safe container to prevent thermal runaway. Following isolation, replacing the compromised battery assembly restores physical integrity and solves display pressure issues.

Adım Adım Çözüm

1
Identify physical failure symptoms on the mobile device.
Recognize that a chassis expanding or pushing away from the frame indicates a swollen lithium-ion battery cell, which poses an immediate safety risk.
Swollen batteries release toxic gases internally due to cell degradation and present severe fire hazards if punctured or stressed.
2
Implement immediate physical hazard safety controls.
Power down the device to cease current draw and place the device into a dedicated fire-resistant enclosure.
Ceasing electrical activity reduces thermal stress on compromised battery cells and minimizes thermal runaway danger.
3
Perform hardware repair and hazardous waste remediation.
Remove the defective battery pack, replace it with a genuine manufacturer battery unit, and dispose of the swollen cell in accordance with hazardous electronics guidelines.
Replacing the battery resolves both the chassis separation and pressure-induced display flickering issues.

Anahtar Kavram

Mobile Device Battery Swelling and Safety Procedures
Tahmini Süre:1m 30s
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Mobile Device Hardware and Display Issues

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