Whether your Apple mobile phone system has been upgraded to the latest version;
What model is your Apple phone? If your mobile phone is 5S or below, it means that the hardware of the mobile phone is not integrated with the new system;
Based on the above two reasons, the background update of mobike APP is fast. If your mobile phone system and hardware are not up to date, there will be a black screen crash;
You can uninstall mobike and try reinstalling it. If not, there are two ways, either change your mobile phone or never use this APP again.