SONY-E AF 27mm F2.8 V2.0.3；
update time 2023-12-28

Q：
What should I do if the computer cannot recognize the lens?

A：
1. Check whether the data cable has data transmission function;
2. Check if the lens cap is installed correctly and if there is any damage to the metal contacts of the lens cap;
3.It is recommended to use Win7 and Win10 systems for firmware update;

Q：
What should I do if I have any other questions?

A：
Please keep your proof of purchase and contact the customer service of the store where you purchased it.