iPhone4S Contact Data Lost_Data Recovery

Case:
Boss Chen’s mobile phone is iPhone4S 16GB, that is, a few days ago, his machine was an iOS5.01 liter iOS8 forgot to backup the contact person. After the upgrade, he found that the number in the address book of the mobile phone was gone.The boss contacted the data recovery company and asked if he could restore his previous address book?

Solution:
1 iPhone 3G, 3GS, 4,4S, iPad1,2, ipod 3,4 passwords forgot, causing data recovery of faults such as failure to enter the machine or machine discontinuation. There is absolutely no way to use brushes, which does not cause any data loss.2 iPhone 3G, 3GS, 4,4S, iPad1,2, iPod 3,4 data delete, or data recovery of data caused by machine failure; 3 recovery because of iPhone 3G, 3GS, 4,4S, ipad1,2, ipod3,4 flashing or system update data loss problems; 4 restore iPhone 3G, 3GS, 4,4S, iPad1,2, iPod 3,4 Memory data loss problem; 5 restore iPhone 3G, 3GS, 4, 43GS, 4,4S, iPad1,2, iPod 3,4 machines after the discontinued data recovery