Apple's mobile phone camera has dust, what should I do?

2. Check whether the camera can be used normally.

3. Check whether other video shooting software is running normally.

4. Check whether there is virus software that makes the mobile phone system incompatible.

5. Restore the factory settings.

6. If the above methods have no effect, it is recommended to go to a regular iPhone store for after-sales maintenance.

After-sales service refers to various service activities provided after the goods are sold. From the perspective of promotion, after-sales service itself is also a means of promotion. In the subsequent stage, sales staff should take various forms of cooperation steps to improve the reputation of enterprises through after-sales service, expand the market share of products, and improve the efficiency and income of promotion.

After-sales service is the most important part of after-sales. After-sales service has become an important element for enterprises to maintain or expand market share (such as JD.COM, Shu Da, Tmall, etc.). The quality of after-sales service will affect consumers' satisfaction. At the time of purchase, warranty, after-sales service and other related terms can make customers get rid of doubts and vacillating forms and make up their minds to buy goods.

High-quality after-sales service can be regarded as the product of brand economy. In a society with fierce market competition, with the improvement of consumers' awareness of rights protection and the change of consumption concept, consumers no longer only pay attention to the products themselves, but are more willing to choose these companies with high quality after-sales service when the quality and performance of similar products are similar.

Objectively speaking, high-quality after-sales service is the product of brand economy, and the after-sales service of brand-name products is often better than that of brand-name products. The price of brand-name products is generally higher than that of miscellaneous brands, on the one hand, it is based on product cost and quality, on the other hand, the after-sales service cost has been considered in the sales strategy of brand-name products.