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When trying to install iPA files on your iPhone, you may encounter errors that prevent the app from being installed or verified. Below are some common installation errors and how to fix them.

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1. “Unable to Verify App” Error

• Description:
  You see this error message when attempting to install an iPA file, stating that an internet connection is required to verify the trust of the developer certificate (“iPhone Distribution: NAME”). The app won’t be available until verified.
• Reason:
  The certificate used to sign the app might be expired, revoked, or no longer trusted by Apple.
• Fix:
  • Ensure your device is connected to the internet.
  • Go to Settings > General > Device Management and verify the certificate.
  • If the certificate has expired, you need to obtain a new certificate from a trusted source.

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2. “Unable to Install ‘NAME’” Error

• Description:
  This error indicates that the app cannot be installed due to an issue with verifying its integrity.
• Reason:
  The certificate associated with the app might be revoked or no longer valid.
• Fix:
  • Use tools like AltStore or Cydia Impactor to sideload the iPA.
  • Re-sign the iPA file using a valid developer certificate.

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3. “‘NAME’ is no longer available” Error

• Description:
  You might see this error message when the app can’t be installed because its certificate has been revoked.
• Reason:
  The certificate used to sign the app has been revoked by Apple, making it unusable.
• Fix:
  • Obtain a new certificate from a trusted source.
  • Use services like AltStore, which allows sideloading iPA files without relying on revoked certificates.

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Conclusion

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