If you need AndroidTool v2.71, here are safe ways to obtain it:

: After changes are made, the files must be "repacked" into a new APK/AAB. Crucially, any repacked Android app must be signed with a keystore to be installable on a device. Common Tools for Repacking

AndroidToolReleasev271 Repack: A Complete Guide to Enhanced Firmware Flashing

: Reduces the final file size by removing unused architectures (e.g., keeping only ARM64) or debugging symbols.

While there is no widely documented official utility specifically named " AndroidToolReleasev271