How to back up Android mobile phone system?

Download an Android backup artifact "titanium backup", and you can completely back up mobile phone data (system software+downloaded software), phone calls, text messages, etc. , Android's best backup software, known as the Android backup artifact, just download the address /a/item? docid = 5338402 & ampf=web_alad_6

The following is how to use titanium gold backup. If you want to use the professional version, you can download a lucky cracker to crack the titanium backup, and then it will become a professional version with more comprehensive functions. You can also back up the mobile phone system completely without cracking it.

/link? Url = nt2q6tu7kqsymv9a965nhlp9l2xr2k0hf0uzkhybpceb887suogk7opdjjp3ymqjxqeenruxyx16z-VH1nda4kiot4nsixp-d1honbmm _ (from Baidu Library)

Hope to adopt thank you!