BenQ-Siemens EF81 turns off by itself
BenQ-Siemens EF81 turns off by itself Your BenQ-Siemens EF81 sometimes turns off by itself? It can happen that your smartphone switches itself off, even if no buttons have been pressed and the battery is charged. If this is the case, there may be several reasons. To find the cause, it is important to check all …