Three : boot , over a period of time ( more than ten minutes ) , turn off the machine on their own for no reason ( crash ) , which is generally a software problem caused this problem in general are:

   A- Because the software part of the power control problem (M V series is particularly remember much) .

   B-32.768 crystal problem , because the machine is in standby ( sleep ) state , the logic part of the operation is given by this crystal standard signal ( there are also individual machine exceptions).

   C- amp itself has poor performance , emission current is too large, because the battery is in the boot foot , and sometimes will not shut down , but after a certain time standby phone contact with the base station once , then the phone will emit a signal to the location registration the base station , because the emission current amplifier ambassador phone at launch will die ( shutdown ) .

    Four: 13 megabytes logic part of the electrical supply is weak , this is like two years ago, a common problem as 3310 N machine .

    Five: As long as the keys on boot after shutdown, it can certainly be loose hardware parts , if the front and rear panels of the points and do not miss checking inline seat .