Mobile unlock: sony xperia hard reset / factory reset tips., Buy original mobile phones from authentic agents or dealers to avoid malfunctioning. this will also provide you security and warranty. to conduct a hard reset, or. 2toer: sony xperia st26i/ st26a open cover, insert, Moreover, sony xperia st26i / st26a (series name of xperia j)has 5 megapixel camera, in which you'll need some huge memory storage to store you saved videos or photos.. » sony xperia soft / hard reset guide, How to hard reset the sony xperia t. so if your device is refusing to reboot the old fashioned way try this option to soft reset. due to this method you won`t lose.