What is the function of rubber sleeve on Lenovo a820t optical sensor? If I lose it, what can I use instead?

Hello, thank you for choosing Lenovo products.

I'm sorry for the inconvenience.

This rubber sleeve is usually used for signal isolation. If it is lost, it may be that the light sensor is out of order, and it can generally be re-made with plastic tape of the same nature. However, due to self-disassembly and maintenance, your mobile phone may suffer secondary damage, which may affect the quality and warranty status of your mobile phone. For your benefit, the government does not advise you to handle it yourself, and there are no relevant resources to provide at present. Please forgive me. Lenovo mobile phone manufacturing adopts strict production technology and standardized production process, and the maintenance and disassembly of mobile phones also need to be handled by professionally trained engineers under specific environmental conditions. Therefore, it is suggested that you choose Lenovo's authorized maintenance outlets and hand them over to senior engineers for inspection and maintenance.

Lenovo authorized maintenance site inquiry:/Lenovo/WSI/station/servicestation/default.aspx? Intcmp=MIDH, the service hours of maintenance stations are generally 9:00- 18:00 from Monday to Sunday, except holidays, and local stations will adjust slightly according to their own operation conditions. I suggest you call for detailed consultation before you go. Please refer to.

Thank you for your support to Lenovo and wish you a happy life!