If you tell me what you are trying to (like a game save, a specific app, or a system file), I can recommend the exact tool or tutorial to help you get it done.
Ensure you create a backup of the original file before hitting save, as hex editing can easily corrupt data. ⚡ Safety Warning hxd download for android
Fast search/replace, support for large files, and a clean interface. Best For: General file editing and reverse engineering. 2. Hex Editor Pro If you tell me what you are trying