Sometimes, phones make weird static noises during calls or while playing music. This issue is common in Android devices, and we will explore ways to fix it in this article. Although we provide some advice for phone users, we will mostly focus on pre-owned device businesses and how they can detect speaker problems.
Why Is Static Noise a Problem for Used Phone Businesses?
As well as other defects, static noise drastically affects the final price of a device and its appeal to your customers. For businesses, selling defective devices means longer turnaround times and lower profits.
Therefore, it is crucial to detect the issue, fix it, and provide guarantees of the smartphone’s quality.
Why Is a Smartphone Making a Static Noise?
There are several reasons for phone static sound:
- Hardware Issues: Usually, the problem is caused by defective phone parts—such as the headphone jack, speaker, microphone, internal cables, or other components.
- Software Malfunctions: When multiple apps run in the background, they might conflict and cause sounds. Moreover, outdated operating systems or applications sometimes glitch, resulting in static noises.
- Network Problems: During calls or live streams, static sounds might be a sign of poor connectivity or interference from other electronics.
- Defective External Accessories: If the noises occur when listening to music with headphones, the problem is most likely caused by the accessory.
- Environmental Factors: The sounds produced by a smartphone can be affected by extreme environmental conditions, such as high humidity or exposure to moisture.
How to Detect the Cause of Phone Static Sound
While problems with audio accessories or extreme environmental conditions are easy to detect, other issues might need a more thorough inspection. Here are several tips that can help you find out why your Android phone makes a static noise:
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Start with basic phone diagnostics: Visually inspect the device for defects, and reboot it to fix minor software glitches. Also, clear the cache and disconnect headphones.
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Check for hardware issues in more detail: Pay attention to speakers, microphones, and the headphone jack (if you use wired accessories). Additionally, check if the device was exposed to water or suffered physical damage—at this point, you might need to disassemble the smartphone.
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Update software to the latest version: With operating system updates, various problems, including static noises, might be fixed. Installing updates also improves connectivity with network systems and hardware components, like microphones and Bluetooth devices, enhancing overall performance.
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Check network connectivity if problems occur during calls: In this case, network issues might be causing the static noise. Try switching between Wi-Fi calling and mobile data to see if the problem persists. If it does, contact your carrier for further assistance.
Some problems—such as hardware defects—are challenging to fix independently and are best handled by repair centers. Professionals know how to accurately assess the problem and provide a long-lasting solution.
How Repair Businesses Can Fix Defective Smartphones
The crucial part of the phone repair process is testing. This initial step largely influences the final outcome.
To ensure that each device is tested thoroughly, repair businesses need to use automated testing solutions. These tools help streamline the process, reduce human errors, and increase efficiency.
Let’s look at the example of NSYS Diagnostics. This solution performs over 60 tests to detect more than 100 hardware defects. You can double-check a device after a repair to confirm that the defect was fixed and the smartphone is functioning properly. Also, NSYS Diagnostics provides testing certificates that serve as independent proof of your repairs, which you can share with your clients.
Additionally, used device businesses can use these testing certificates to sell on marketplaces, as NSYS Group is trusted by Amazon Renewed, Back Market, and Refurbed.
How NSYS Diagnostics Improves QC at Repair Centers
NSYS Diagnostics helps repair centers and other used device businesses streamline their workflow and boost revenues. For example, after implementing the software, Phoneix, a Swedish repair company, increased its number of B2B clients by 15% in just three months due to consistent quality control. Moreover, the overall number of incoming devices rose by 10%.
Try NSYS Diagnostics to enhance the quality of your testing!
