The same Phonecheck diagnostic that backs a consumer quote, run across your own stock. Every handset arrives already tested, already graded, with a result both sides agreed before it went in the box.
The Phonecheck app is free. Install it, run a test, and see exactly what a graded result looks like.
Runs on the device being sold — no rig, no cables, no depot. A full hardware pass takes about five minutes.
Volume testing, your own Phonecheck profile, and results that land straight against your stock.
The argument about condition is the expensive part of trade. This removes it.
The diagnostic sets the grade before the device moves, so the price is settled while you still have it.
A disputed grade is settled against the test result, not against whoever shouts loudest.
Blacklist and lock status read at test time, before anything is shipped or listed.
Every handset keeps a signed result you can produce later — for a buyer, an insurer or a return.