If restore stalls during “writing” or “waiting for device,” place device in DFU mode, ensure stable connection, and retry.
Temporarily disable or third-party antivirus (like Avast or Norton). 3utools error unable to restore idevice--75-
A failing battery or a weak battery connector can cause the CPU to "brownout" under the high load of a restore, leading to an instant power cut and a failed restore. If restore stalls during “writing” or “waiting for
Very rarely. You can try “Retain User Data” flashing, but if the baseband is corrupt, a full restore (erasing data) is usually required. ” place device in DFU mode
If none of these software fixes work, it is highly likely that the or the charging logic board on the device itself is faulty and requires professional repair.