If it shows an Untrusted Developer error, just go to Settings, tap on General, open Profiles and tap on the App Developer and then tap on ‘Trust’ and the app should work fine. Step 2: Now open the app and you can download GBA4iOS easily from there. Step 1: Go to the AppValley Installer Page, download AppValley and install it. Upon successful installation you can easily find GBA4iOS on your Home screen. Step 7: Tap on the install button and you will get a pop-up, tap on install, and now the process of installing GBA4iOS will start. Step 6: Go to the app section and find GBA4iOS and tap on it. Step 5: Upon successful installation, open Tweakbox app from the Home screen.
Step 4: Find the Tweakbox Profile and install it. Step 3: Now that the profile is downloaded, go to Settings, tap on General, then go to Profile. Step 2: On the first page, you will see ‘install now’, tap on it.