3utools Error Unable To Restore | Idevice75 Link

If the "Fix battery health" option in fails, it may point to a deeper hardware issue. The battery itself might be severely degraded or physically failing. In such cases, even software tricks can't bypass a hardware failure. You may need to consider a battery replacement. Similarly, some users have reported that restoring a device with a non-original or aftermarket battery caused errors like -1 or -75 until the original battery management system (BMS) was used.

A damaged or non-certified Lightning/USB-C cable, or a loose charging port, can trigger the error. 3utools error unable to restore idevice75 link

Only disable these if the device has a known good baseband and you are flashing the correct firmware version. If the "Fix battery health" option in fails,