← Guides

How to choose a wholesale phone parts supplier

Picking a parts supplier is mostly about what happens when something goes wrong: a dead panel, a wrong part, a box that shows up two days late while a customer waits. This checklist is what to look at before you open an account, and what to track after your first few orders. It's supplier-neutral. For side-by-side facts on specific suppliers, see supplier comparisons and the supplier directory.

Before you order

1. Read the written return and warranty policy. Note the window to report a defect, whether installed or tested parts are covered, who pays return shipping, and whether you get a refund, store credit or a replacement. If you can't find it on the site, ask for it in writing.
2. Check how listings name screen grades. Good listings say what the panel actually is: soft OLED, hard OLED, incell LCD or a refurbished original. A label like “premium” on its own tells you little. Our screen quality tiers guide explains the differences.
3. Work out the landed cost. Compare part price plus shipping for the order size you really place. A lower part price can lose to free shipping thresholds, and an expedited fee matters when a customer is waiting.
4. Check shipping cutoffs and warehouse location. The order cutoff time and where it ships from decide whether a part ordered today is on your bench tomorrow.
5. Look at stock depth on your top models. Check whether the screens and batteries you sell most are in stock across more than one grade, so one stockout doesn't stall your queue.
6. See what other techs say. Read reviews that name the part, the grade and how a return went. One bad order is noise; the same complaint from several shops is a pattern. Start with the supplier pages.

After your first orders

1. Test every part before install. Use the pre-install screen test and the battery checklist. A defect caught on the bench is a return; caught after install, it's your labor.
2. Track your defect rate by supplier and grade. A simple sheet with date, part, grade, supplier and pass/fail is enough. After a few dozen parts you'll know which grade from which supplier you can trust.
3. Note how your first return goes. The first time you send a part back, note how long the refund or replacement took and how much back-and-forth it needed. That's the real warranty.
4. Keep a backup account. A second supplier covers stockouts and gives you a price check. Our price tracker and price change log show when listed prices move.

Red flags

• No written return policy, or one that excludes any part that has been connected to a phone.
• Screen listings that never say OLED, incell or LCD.
• Prices far below everyone else on the same grade, with no explanation.
• Support that only answers through a form and goes quiet once you mention a return.

Common questions

How many parts suppliers should a repair shop use?

Most shops do best with one main supplier for everyday screens and batteries plus a backup for stockouts and hard-to-find parts. A second account also gives you a price check when your main supplier's prices move.

Is the cheapest screen supplier the best deal?

Not always. A cheap panel that fails on the bench costs you the part, your labor and sometimes the customer. Compare the landed cost (part plus shipping) and how returns are handled, not just the listed price.

What should a supplier's warranty cover?

Read the written policy before you order. Check how long you have to report a defect, whether installed parts are covered, who pays return shipping, and whether you get a refund, store credit or a replacement.

How do I know if a supplier's screen grade is honest?

Look for listings that name the panel type (soft OLED, hard OLED, incell, LCD) rather than vague labels like 'premium' alone, then test every screen before install. Reviews from other techs that name the grade they bought are the best outside check.