How to reset a smart phone when crashed?

I have a question that smartphones like iPhone, Sony Xperia line of Z, HTC One line, G-line LG, Nokia Lumia as 1520, 920, 720 that I couldn’t take it battery out when they crashed, so, what should I do to reset my smartphone?

Answers ( 1 )

  1. 0

    Iphone crashes (hold Home + Power simultaneously), Sony Z Treo Machine (Power + Volume Up at the same time hold, or red hot keys sim slot position), HTC hold the power button too long term, LG Field G also, the Lumia (hold Volume Down + Power at the same time).

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