If your mobile phone battery still works, or if you have used it for a short time, it is not recommended that you replace it. After all, the original battery of your mobile phone works best. Even if you change the battery in the after-sales service center, maybe he doesn't have the original battery, and the battery lasts so well.
After-sales service content:
1. Install and debug products for consumers.
2, according to the requirements of consumers, the use of technical guidance, etc.
3. Ensure the supply of maintenance spare parts.
4. Responsible for maintenance services and provide regular maintenance.
5. Call consumers regularly or visit them at home.
6. Implement "three guarantees" for products, namely, guaranteed repair, replacement and return (many people think that the after-sales service of products is "three guarantees", which is a narrow understanding).
7. Handle letters, visits and telephone complaints from consumers and answer their inquiries. At the same time, collect consumers' opinions on product quality through various ways, and make timely improvements according to the situation.