1. I downloaded the old ipa file through the appstore. Install a PP assistant first. Connect your mobile phone to the computer!

Click the database in the itunes interface;

/iknow-pic.cdn.bcebos.com/242dd42a2834349bceea22188c4a115ce36d3be13 "target =" _ blank "title =" "class =" ikqb _ /iknow-pic . cdn . BCE Bos . com/242 DD 42 a 2834349 bcea 22 188 C4 ea 15ce 36d 3 be 13？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ 242 DD 42 a 2834349 bcea 22 188 C4 ea 15 ce 36 D3 be 13 "/>

2. Find the previously downloaded ipa file in the database, as shown in the figure below, click the right mouse button and display it in the resource manager;

/iknow-pic . cdn . BCE Bos . com/6a 600 c 338744 ebf 8d ed 52 b 32d 4 f 9d 72 a 6059 a 7 13 " target = " _ blank " title = " " class = " ikqb _ img _ alink " & gt； /iknow-pic . cdn . BCE Bos . com/6a 600 c 338744 ebf 8d ed 52 b 32d 4 f 9d 72 a 6059 a 7 13？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ 6a 600 c 338744 ebf 8d ed 52 b 32d 4d 9d 72 a 6059 a 7 13 "/>；

3. Find the downloaded ipa file, and right-click the mouse to choose to install it with PP assistant;

/iknow-pic . cdn . BCE Bos . com/34 FAE 6 CD 7b 899 e 5 15 16875 1 94 fa7d 933 c 9950 DDC " target = " _ blank " title = " " class = " ikqb _ img _ alink " >/iknow-pic . cdn . BCE Bos . com/34 FAE 6 CD 7 b 899 e 5 / kloc-0/5 16875 194 fa 7d 933 c 9950 DDC？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ 34 FAE 6 CD 7 b 899 e 5 15 16875 194 fa 7d 933 c 9950 DDC "/>

4.PP assistant starts and detects the connection of mobile phone! Start connecting the mobile phone;

/iknow-pic . cdn . BCE Bos . com/d 62 a 6059252 DD 42 AE 3 ad 4 ea 60 E3 b5 bb 5c 9 eab 8 13 " target = " _ blank " title = " " class = " ikqb _ img _ alink " & gt； /iknow-pic . cdn . BCE Bos . com/d62a 6059252 DD 42 AE 3 ad 4 ea 60 E3 b5 bb 5c 9 eab 8 13？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ d62a 6059252 DD 42 AE 3 ad 4 ea 60 E3 b5 bb 5c 9 eab 8 13 "/>

5. After the test, click the Install to Mobile Phone button;

/iknow-pic.cdn.bcebos.com/ac6eddc451da81cb6b00cc05f66d016082431DC "target =" _ blank "title =" "class. /iknow-pic . cdn . BCE Bos . com/AC 6 eddc 45 1da 8 1 CB 6b 00 CCC 05 f 66d 0 1608243 1dc？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ AC 6 eddc 45 1da 8 1 CB 6b 00 CCC 05 f 66d 0 1608243 1dc "/>

6. Install the application, as shown in the figure below, and wait for the installation to be completed.

/iknow-pic . cdn . BCE Bos . com/d53f 8794 a 4c 27d 1 e 99 db 74 c 9 16 D5 ad 6 eddc 43839 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >； /iknow-pic . cdn . BCE Bos . com/d53f 8794 a 4c 27d 1 e 99 db 74 c 9 16 D5 ad 6 eddc 43839？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ d53f 8794 a 4c 27d 1 e 99 db 74 c 9 16 D5 ad 6 eddc 43839 "/>；

Extended data:

Ipa file is essentially a zip compressed package (not a rar or 7z package), which contains three components. The app directory under the payload directory is the main program of the software; ITunesArtwork is essentially a png picture without suffix, which is used to display icons in iTunes. ITunesMetadata.plist records buyer information, selling price and other data.