ERROR: Unable to restore iDevice(-75).
Just like alway iPhone never provides enough to solve the problem they create.. so I had to Beat around till I found the solution... and fortunately I did ... that error is mostly vague and sometimes revolves around insufficient power.. buh what they don’t tell u is when making a restoration your battery health is also verified.. and if it’s subpar you could keep getting this obnoxious error code... buh thank God for 3utools
Assuming u know what u are doing and are already in recovery or dfu mode
1. connect to the computer where voltage is sufficient
2. open 3utools and select Smart Flash (It on the top bar at the time of when I was typing this)
3. select quick flash and check the “Fix battery health” box. Of course you’d have to either download or import your required firmware to proceed..
4. This it, click flash and sit back and watch yet another genius fix apples “cough cough” intentional problems “cough cough”
Your welcome