It sounds simple, but the iPhone 7 is sensitive to power fluctuations during firmware loads. Use an and plug it directly into the motherboard (the back of the PC) rather than a USB hub.
A faulty cable can cause a "handshake" failure where the device reports its ID, but the computer fails to send the loader file. Step-by-Step Solutions 1. Manually Verify and Download the Correct IPSW
The "updated" error is frequently fixed in the latest patches of these third-party utilities. 3. Use DFU Mode (Deep Firmware Upgrade)
Choose . Note: Ensure you do not select the Global version if your device is specifically the 9,3 model. Download the latest "Signed" firmware (marked in green). 2. Update Your Restoration Tool
If you are using tools like 3uTools, Rufus, or older versions of iTunes, they may not have the updated library to recognize the specific board ID d101ap .