I understand that almost all the phones of this brand have already become extinct, but mine is still alive, almost .... Maybe someone has lost this version or has a subscription to easy firmware, could you leave a working link to this version M835V100R001C177B622 ? Or maybe you have a m835 resuscitation method, because when it is turned on, only the diode on top and the buttons below it blink, and it does not turn on( I will be grateful for any help.