According to the Androidauthority report:recently Korben,a French blogger found such a bug: just send = symbol text message to the mobile phone with MTK chip,you can make this phone restarted.Sounds a bit funny,but the truth is there,Korben has especially made a video for your presentation.
Korben found that even flash the phone into another ROM,this bug still exsit ,indicating this bug has no significant relations with the system, probably is the result of interaction between hardware and software.It is reported that most devices are not affected by this bug,only a small part of MTK mobile phones.
Solution to this bug is to install the third-party SMS application and disable the native SMS application, you can avoid this problem.
At present,there is no complete list of the affected devices,but the two brands,Wiko and Alcatel are the most risky.
MTK mobile phones in China has no similar news yet,we may as well try.