Mobile Phone Parts Quality Control
WOSENTE applies product-specific inspection procedures for mobile phone screens, batteries and repair parts, covering incoming inspection, appearance, functional testing, compatibility checks, aging or stability testing, and final inspection before shipment.
Product-Specific Quality Inspection
Different mobile phone parts require different inspection methods. WOSENTE applies category-specific checks for screens, batteries and repair components, focusing on appearance, dimensions, performance, compatibility, stability and final packing condition.
Quality Control by Product Category
Brand new
Original factory raw materials;After 44 rounds of installation testing;Aging test experiment;Display and brightness comparison;72 hour high refresh rate test.
Replace the cover plate
Original raw materials, replacement parts, 2 refurbishments,After 44 rounds of installation testing,Aging test experiment,Display and brightness comparison,72 hour high refresh rate test.
OLED
Change plan for large factory glass and glass of the same size specifications;After 44 rounds of installation testing;Aging test experiment Display and brightness comparison;72 hour high refresh rate test.
INCELL
Change plan for domestic glass+integrated process；After 44 rounds of installation testing；Display and brightness comparison；72 hour high refresh rate test.
OEM
The original configuration was processed by a third-party factory;After 44 rounds of installation testing;Aging test experiment;Display and brightness comparison;72 hour high refresh rate test.
Total Quality Control Process
Aging Test
Verify display
Verify function
Verify backlight bonding
Test conditions: -20℃/2Hrs, +55℃55%RH/2Hrs,+55℃/4Hrs)
Appearance Test
Examine for dust, scratches, bubbles
Check if the front bezel is deboned or damaged
Check if the screw holes are blocked
Test hydrophobic effect with water, alcohol, N-hexane
Display Test
Measure the brightness (nits)
Measure color temperature and color gamut
Measure the resolution
Test the backlight evenness
Function Test
Test polarization
Measure light transmittance rate
Test the True Tone function
Test 3D touch and responsiveness
Appearance Test
Measure thickness, width, and length
Measure screen borders and notch
Install the screen and check the fit
Aging Test
Test batteries are to be stored for 4 hours at 70℃
Appearance Test
Check battery cell surface
Check silk screen/label printing
Measure the length, width, thickness and weight
Function Test
Over-charging/over-discharging protection test
Overcurrent / Short-Circuit Protection Test
Appearance Test
Check for signs of use
Alignment of solder pins
Check for watermarks
Basic Functions Test
Photo clarity
Light sensitivity
Focus test
Zoom test
Portrait Mode Function Test
Testing for the presence of a portrait mode
Testing the ability to focus in portrait mode
Testing the adjustability of portrait mode parameters
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