Research Methodology
How PhoneBulk researches a buying guide, what counts as a source, and how we handle claims we cannot inspect first-hand.
Every PhoneBulk guide starts with a decision a lot buyer has to make. Then we look for a primary document that can support or limit that decision.
Research order
- Name the decision and the inventory state.
- Collect official manufacturer, standards, or trade documents.
- Write only the claims those documents can carry.
- Mark trade practice as practice, not as a rule.
- Add Accept / Clarify / Reject where the buyer must choose.
- List sources on the page.
What we will not do
- Invent inspection stories or warehouse tours
- Treat a marketplace blog as an IMEI or lock authority
- Turn Incoterms into shipping advice for a named airline
- Publish a price as a current market fact
First-hand limits
PhoneBulk is a research site, not an inspection service. If a page needs a device screen, we cite the official location of that screen. We do not pretend we opened your carton.
Tools
A tool page must include the method, field definitions, an example, and a risk note. See the RFQ template.