Network Synchronization functions and principles of mobile phone contacts in meizu

Meizu yesterday launched a mobile phone contact network synchronization software based on the official server. Use the standard SyncML protocol to synchronize your M8 mobile phone contacts with the address book of the meizu user center http://member.meizu.com/, so you don't have to worry about synchronizing multiple mobile phone contacts.
Firmware requirements:
0.9.7.1 and later versions

Note:
1. During the first synchronization, all contacts on the mobile phone will be uploaded to the server for comparison because no ing has been established with the address book on the server, the server then returns the updated content to the mobile phone and establishes a ing relationship between the two parties. This process is called "full data synchronization", which is slow. Subsequent synchronization operations only transmit changed information (called "bidirectional synchronization"), which is faster.

2. synchronization is not equal to import and export. The synchronization function is to maintain consistency, whether added, deleted, or modified. That is to say, you have deleted the contacts on your mobile phone. After synchronization, the corresponding contacts on the server will also be deleted. Please pay special attention when using the contacts. it is best to back up the contact locally to prevent misoperation and regret it.

3. Supports ActiveSync, WLAN, and GPRS for network connection. During synchronization, select the network link based on the M8 default route priority: ActiveSync> WLAN> GPRS. If "forced GPRS synchronization" is set in the setting item, the synchronization will be performed through GPRS at any time.

4. This function has high requirements on Network stability. When GRPS is used for synchronization, timeout and suspended waiting may occur. Please try multiple times. If conditions permit, use ActiveSync or WLAN for synchronization.

5. If the contact is deleted by mistake on the mobile phone or in the meizu user center Address Book, select "reset to full data synchronization" in the settings ", in this way, the contacts deleted by mistake but on the other end can be synchronized back.

As you can see from the reply, the security, privacy, and confidentiality of this function have been questioned by netizens, so I would like to explain it here:
1. Data is encrypted using SSL throughout the network transmission process to ensure that the transmitted content is not listened to or sniffed during synchronization.

2. The address book data is synchronized to the official server of meizu ------- when sending text messages or making phone calls, since we believe that mobile, Unicom, and Telecom will not peek at your privacy, when using the M8 mobile phone to save the address book, please trust meizu

Detected bugs:
1. The Chinese account cannot be successfully logged on

Software:

Synchronization principle: