Smart lock assembly, PCBA integration, aging test and final inspection.
SHENZHEN YOUNUO IET CO., LTD
Smart Lock Factory & Quality Control
YOUNUO IET integrates smart lock assembly, PCBA integration, reliability testing and final inspection for OEM/ODM buyers. Review the factory workflow and quality evidence before supplier qualification.
Incoming materials, functional testing, appearance and packing review.
Sample confirmation, production coordination, buyer documents and export packing.
QCFunctional verificationShipmentPackaging review
Factory decision path
Factory & QA Capability For Smart Lock Buyers
YOUNUO IET integrates smart lock assembly, PCBA integration, reliability testing and final inspection for OEM/ODM buyers. Review the factory workflow and quality evidence before supplier qualification.
Manufacturing Scope
Smart lock assembly, PCBA integration, lock body fit, final inspection and export packing review.
Engineering Support
Hardware, mechanical structure, firmware/platform cooperation and sample-stage technical review.
Quality Control
Incoming material, PCBA, assembly, function, aging, appearance and final packing checkpoints.
Buyer Evidence
Factory photos, QC videos, verified certificates and project-ready export documents for supplier review.
Manufacturing capability
Manufacturing Scope Buyers Can Verify
Engineering review, smart lock assembly, PCBA integration, functional testing, final inspection and export packing form one controlled manufacturing workflow.
01 PCBA & module review02 Lock assembly03 Function and aging test04 Packing and export handoff
- Mechanical assembly
- Electronic integration
- Lock body assembly
- Final product assembly
- Smart lock PCBA integration
- Component management
- Functional testing
- Fingerprint testing
- Face recognition testing
- App connection testing
- Motor testing
- Battery testing
- Product inspection
- Packaging
- Export preparation
Engineering support
Engineering Support Behind OEM/ODM Projects
Engineering support connects buyer requirements with hardware, mechanical structure, software cooperation, testing and production execution.
PCBA support, electronic integration and component selection for qualified smart lock OEM/ODM projects.
Product structure review, housing customization discussion and assembly-fit support.
App/platform integration and firmware cooperation reviewed by project scope and selected product.
Prototype discussion, testing coordination and mass production support through sales, engineering and production communication.
Quality vision & objectives
7-Stage Quality Control From IQC To Pre-Shipment Release
Measurable targets and defined inspection gates connect incoming quality, in-process control, finished-product validation and export release.
Quality vision
The quality principle is zero major safety incidents, consistent product reliability and professional service for long-term overseas cooperation.
Incoming non-conformity ≤ 0.8%
Key components including fingerprint module, lock motor, main PCB and lithium-ion battery target 100% pass rate.
FPY ≥ 98.5%
In-process production control targets ≤ 1.2% rework rate.
Delivery pass rate ≥ 99.7%
Finished-goods batch rejection target ≤ 0.3%.
Annual failure rate ≤ 1.5%
Zero major safety-related complaints per year.
Motor life >= 150,000 cycles
Fingerprint FAR <= 0.001%, FRR <= 1%, with sampled IP, temperature and salt-spray testing.
ISO 9001 system maintained
Product- and market-specific certificates or test reports are reviewed only when matched to the exact model and approved document.
Incoming Material Inspection
Review lock bodies, panels, electronic components, accessories and surface finish before assembly.
PCBA Inspection
Check board function, power behavior, communication modules and electronic checkpoints before installation.
Assembly Inspection
Verify mechanical fit, electronic integration, lock-body assembly and fastener control.
Function Testing
Check biometrics, card/PIN, app connection, motor behavior, alarms and model-specific functions.
Aging Testing
Run selected products through repeated-operation and powered aging checks before packing.
Appearance Inspection
Review finish, panel, keypad, handle, housing and buyer-facing presentation.
Final Packing & OQC
Confirm labels, accessories, manuals, protection, quantity and buyer-specific packing requirements.
Factory evidence
Factory Photos And QA Testing Videos
Factory photos and approved QA videos help buyers evaluate production, assembly, testing and export-preparation evidence before requesting deeper documents.
