But here's the trap: You might have 5 GB free. The patch is 2 GB. That should work, right? Wrong. Blue Archive stores additional resource files (voice lines, L2D animations, event cutscenes) in a protected data folder that doesn't show up in your normal "App Size" breakdown. Clearing cache from your phone's settings doesn't always release this reserved space.

Not enough free storage. Please free up space and try again.

of free space. While the game may only take up 7-8GB, the update process often duplicates files temporarily. Check Permissions : Go to your device's Settings > Apps > Blue Archive > Permissions and ensure "Storage" or "Files and Media" is allowed. Restart the Device

This removes temporary files that may be corrupting the storage check . 3. Clear System "Ghost" Storage (Android)

If you have tried all six fixes and Error 80103 persists, you may be facing a hardware limit. Devices with 32GB of total internal storage (e.g., iPhone 6S, 32GB Android phones from 2019) are no longer viable for Blue Archive . After the Volume F (Final) update, the game requires: