What does “-5 error message” on (iPhone) mean? What should I do? Maktar Support - Audrey September 07, 2021 03:31 Updated There is an issue with your iPhone’s firmware IPSW. This error happens occasionally with any backup device. Please use the following steps to update the IPSW: Step 1. Backup your iPhone through iTunes https://support.apple.com/en-us/HT203977 Please backup your data before setting your iPhone to factory settings. Step 2. Restore the iPhone to factory settings https://support.apple.com/en-us/HT201252 Step 3. Use the backup to restore your iPhone https://support.apple.com/en-us/HT204184 Once you’ve updated the IPSW, you should be able to use Qubii to backup your phone. ⚠️ Please note: Updating the IPSW will set your iPhone to the default setting. Be sure to backup your iPhone data to your computer before formatting. If you are still having trouble, please contact Customer Support for further assistance. Customer Support Contact Information: In-App: App -> Tap "top left chat icon"-> Contact USFacebook Messenger: m.me/maktar.incEmail: email@example.com Related articles My phone charging cable and charger are both connected to Qubii but my Qubii App still shows that it is disconnected. What should I do? What does a “-6 error message” mean? What should I do if I receive this message? My Qubii App keeps disconnecting while backing up. What should I do? What should I do if I get a “File Read Error (EA) “ message? Why is Qubii asking me to insert the microSD card when I have already inserted it?