Benchmark the Industry Quality Control

Every screen and related part that ships under REWA Tech goes through a specialized QC team before it leaves. Quality Above All is the working rule: we benchmark phone repair parts against a fixed test plan, not a one-off spot check. In practice that means aging, appearance, display, function, and fitment checks for screens, plus matching battery and spare-parts tests when those lines apply.

OEM NEW is original and unused from the original manufacturer. OEM USED is recovered from originally used parts through replacing, cleaning, combing, and polishing. S+ grade is built from original materials by a third party factory. A+ grade uses materials compatible with the original, also assembled by a third party factory. Shops usually pick OEM NEW or OEM USED when they need closest-to-original feel, and S+ or A+ when they want a clear cost grade for everyday phone screen repairs.

4S is the highest tier, aimed at operators and refurbishing facilities that need top market quality. 3S is above average for chain stores and insurance-style programs. 2S is solid everyday quality for repair shops and distributors. 1S is price-oriented for markets where cost comes first. Matching the level to your channel keeps returns lower than buying on price alone.

Lots arrive sealed (Factory Delivered), then get a REWA lab first test. A first cosmetic and function inspection follows before warehouse stock. Before build, units are rechecked, then assembled for the order, given a second function pass, stamped and packed, and shipped. That trail is how REWA quality control stays consistent from phone parts intake through delivery.

Screen QC covers five areas in plain terms: aging under heat and cold, appearance for dust scratches and bubbles, display for brightness color and resolution, function for polarization True Tone and touch, and fitment for size borders and install fit. Those are the same screen tests listed on the quality control page, written for shop buyers comparing phone screen quality grades.

Batteries go through aging, appearance, function protection checks, and quality measures such as capacity and internal resistance. Spare parts such as cameras get appearance checks plus basic and portrait function tests where they apply. The goal is the same as screens: catch faults before the part reaches your bench.

REWA lists marks such as IEC62133, CE, FCC, RoHS, MSDS, UN38.3, and SDS on the Certified Globally section. They relate to safety, materials, and transport documentation for relevant product lines (for example battery shipping rules under UN38.3). They are useful checks for wholesale compliance conversations. They are not a promise that every single SKU carries every mark, so confirm the docs you need for your market when you order.

Clear grades, level codes, and a written test process make it easier to agree what you ordered and what you received. That reduces guesswork when a return or RMA comes up. Wholesale buyers still follow REWA’s published warranty and RMA terms for the product line. Strong QC up front is how we aim to keep those cases rare.

It is built for phone repair shops, parts distributors, and refurbishers who need predictable phone repair parts quality. If you buy screens, batteries, or spare parts in volume and care about grade labels and test evidence, this page is the map of how REWA Tech runs quality control.

Start from your customer mix: operator and insurance work usually needs higher levels, while price-led markets may use 1S or A+ more often. Share device models, target grade (OEM NEW, OEM USED, S+, or A+), and volume with the REWA team through Contact Us or wholesale inquiry. We will help match phone screen quality grades and levels to the job instead of guessing from a price list alone.