Fix the black screen caused by iPhone system failure

iPhone The phone screen is black , If there is no hardware problem , That is, there is a problem with the mobile phone system , Need to be right iOS Repair the system .

We can use iTunes, Open software , After connecting the mobile phone to the computer , choice “ to update ” perhaps “ recovery ” operation . Third party system repair tools can also be used , Like o'kefeng Apple repair master 【 Apple repair master 】 link

Use standard mode , Repair system operation of mobile phone , No loss of data , Open software selection 【 The standard model 】 Connect the mobile phone to the computer for operation