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Answer: 99 How many days can I return If a mobile phone is purchased from an online store, such as JD, Tmall, Taobao, Suning Vipshop and other platforms, these platforms all support 7 days' return without reason and 15 days' exchange without reason. If this mobile phone is purchased within this period of time
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Answer: If it is still within the warranty period, you can directly contact the manufacturer's customer service to apply for a free replacement; If the warranty period expires, it may be necessary to replace the parts or complete machine at your own expense. Remember to keep a good purchase record to prove the condition of the product
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Answer: After my mobile phone was upgraded, it was very quiet and I couldn't hear clearly.
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Answer: 95 Touch insensitive The mobile phone is not sensitive to touch. First, check whether your mobile phone is a touch screen mobile phone. Some elderly phones do not support touch control. If your mobile phone is a touch screen mobile phone, and the touch screen is not sensitive, it is recommended that you first turn off your mobile phone
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Answer: 94 Unable to charge If the mobile phone cannot be charged, it is recommended that you first change a set of charger for testing to determine whether your charger is damaged. If the mobile phone still cannot be charged after changing other chargers, it is necessary to consider whether the mobile phone battery or
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Answer: 92 The screen is broken If the mobile phone screen is broken, if your mobile phone has passed the official warranty period, you can consider some third-party repair shops. If their shops have devices such as screen pressing machines, you can directly press a new layer of outer screen glass, and the maintenance cost is relatively high
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Answer: 91 How much is it to change the screen How much does it cost to change the screen? There are many influencing factors, mainly depending on whether the screen you replace is the original one. Many mobile phones have many non original screens that can be used by third parties on the market, and such screens are often available on Taobao and other lines
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Answer: How much will it cost if the 90 screen is broken If the mobile phone screen is broken, if your mobile phone has passed the warranty period, I personally recommend going to some third-party repair shops for replacement. If the touch and display of the mobile phone are OK, you can use the screen pressing machine in those shops to add
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Answer: 89 Fingerprint key is broken First of all, if it is a functional mobile phone that does not have a fingerprint identifier, it does not matter whether it is damaged or not. If it is a relatively new touch smart phone at present, most of them have fingerprint identifiers, and if the fingerprint identifier cannot be used normally
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Answer: 88 What to do if it breaks down If the mobile phone is damaged, the first thing to consider is the damage on the system or hardware. If it is a damage on the system, it can often be solved by restoring the factory settings or re brushing the system. If it is a damage on the hardware, for example
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Answer: 87 Waterproof or waterproof The current mobile phones are truly waterproof only when they reach the IP68 level. In addition, they can only be regarded as life waterproof or non waterproof. At present, most of the truly waterproof mobile phones are high-end flagship phones with more than 4000 yuan and less than 4000 yuan
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Answer: 85 Black screen after power on If the screen lights up normally during startup, but the black screen appears after entering the system desktop, this situation is often caused by a problem on the system, for example, the system desktop program is not loaded, and the phone needs to be restored to the factory once
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