Bulk Phone QC Checklist for Lot Inspection
A lot-level phone inspection checklist with Accept, Clarify, and Reject rules for identity, locks, IMEI, battery, function, and DOA.
Editorial archive
All guides — page 6
Page 6 of the PhoneBulk editorial archive, listing every published guide from newest to oldest.
Carrier Lock Checks for Wholesale Phones
How to confirm whether a used phone is locked to a carrier, why Apple cannot unlock an iPhone, and how lock status should appear in a lot quote.
Cosmetic vs Functional Grading for Used Phones
Why a used-phone lot needs two grades, what each axis should test, and how mixing beauty with function hides the expensive failures.
DOA, Warranty, and Returns on Wholesale Phone Lots
How to write dead-on-arrival, seller warranty, and return shipping terms before a used or unused phone lot ships.
Grade A, B, and C Phones in Wholesale Lots
What Grade A, B, and C usually mean in phone wholesale, why those letters are not a law, and how to accept or reject a letter without a written scale.
IMEI Checks for Bulk Phone Lots
What an IMEI and TAC identify, what GSMA Device Check can and cannot prove, and how to treat a flagged unit in a wholesale lot.