Sony® recently became aware that some of the SEL35F28Z Sonnar T* FE 35mm F2.8 ZA E-Mount lenses sold during and after November 2014 may experience an issue when you try to update the software to the new version released on March 4, 2015 (from version 01 to version 02).
Sony will provide free repairs of affected SEL35F28Z lenses until March 31, 2016. If you have an affected SEL35F28Z lens, please call Sony Support at 1-239-245-6360 to arrange for service.
We apologize for any inconvenience this may have caused and thank you for your understanding and cooperation.
NOTE: More information can be found on the SEL35F28Z product alert page.