How To Auto Restart A Service When Killed?

I have already red many posts about the subject, some of these works, but only on some devices. For example it works on my Nexus 4, Nexus 5 with cyaogenmod, but not on my Xiaomi Mi

Solution 1:

I'm not sure if it will solve the issue for you or not but it worked for me.

I'm running MIUI 6.6.10

1. Open the Security app provided by Xiaomi

2. Click on permissions -> Autostart

3. Here allow your app to auto start

WhatsApp and all famous apps work because Xiaomi white listed them and allowed them to autostart.