Even if you find a repack that isn't overtly malicious (a rare unicorn), you face three major functional problems:
The safest and most reliable choice is always to download the Official Wondershare MobileTrans toolkit. Mobiletrans Safe REPACK
Disclaimer: This article does not encourage or provide links for downloading cracked or pirated software. The information is for educational purposes regarding the security risks of repacked software. Even if you find a repack that isn't
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Repacks are notoriously unstable. To make a program work without its proper license, crackers often have to modify executable files and system registries. This process can break the software's core functionality, leading to: Mobiletrans Safe REPACK
Tell me your device types and I can provide a step-by-step security checklist for your transfer.