Upgrading method, server and terminal

The invention provides a device upgrading method, and the method comprises the steps: transmitting an upgrading instruction to a terminal based on abnormal information reported by the terminal, the upgrading instruction carrying an upgrading package; detecting the running state of the terminal under the condition that it is determined that the terminal fails to upgrade the system firmware of the terminal according to the upgrade package; determining an upgrading strategy satisfied by the terminal according to the running state; and upgrading the terminal according to the upgrading strategy. Meanwhile, the invention further provides a server and a terminal. In this way, under the condition that the terminal fails for the first time, the target upgrading strategy met by the terminal is determined according to the running state of the terminal, terminal upgrading is achieved through the target strategy, and the equipment upgrading success rate can be increased. 本申请提供一种设备的升级方法，所述方法包括：基于终端上报的异常信息向所述终端发送升级指令，所述升级指令