Nah already too late send to warranty already For this model M7310 the battery is 1 year and the body is 3 year i dunno this website tp-link make it for wht never reply my message.

Model : M7310 Hardware Version : M7310(EU) v1.0 Firmware Version : 1.0.4 Build 160301 Rel.1036n ISP : My M7310 Mifi Battery have inflated little so is the battery can warranty or just the Mifi M7310...