Simply yes. It can mean many things such as a battery issue. Some found that unplugging and plugging in the battery worked but not all things are consumer level repairs. If it's in warranty it's best to let them deal with it. No one should diagnose this sight unseen.
My Sony Xperia ZL (C6502) shuts itself off on battery power but is OK when plugged in and charging. Has anyone had this problem? The battery is not replaceable unless I send the phone back to the factory for repair. I would like to avoid doing this if possible. Thanks for any help I can get.