After-Sales Service

WARRANTY & REPAIR

Sino-Network stands behind every product we ship. Our dedicated support team ensures your devices keep running at peak performance.

Our Commitment

WARRANTY POLICY

We guarantee our products a 24-month warranty period from the date of purchase. All batteries carry a 6-month warranty period.

Extended warranty agreements can be arranged separately upon request.

If a product stops operating within the warranty period, Sino-Network will provide one of the following resolutions:

  • Repair the defective product at no charge
  • Replace with a brand-new product of the same model
  • Replace with an equivalent refurbished product with identical functionality
  • Replace with a different product of equivalent functionality in case of EOL for the original model
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Terms & Conditions

WARRANTY DISCLAIMER

  • Customers may only return products that are defective due to manufacturing or assembly faults.
  • Products are intended to be used by trained and experienced personnel.
  • Warranty does not cover defects caused by accidents, misuse, abuse, improper maintenance, or inadequate installation not following operating instructions.
  • Warranty does not apply to any consequential or indirect damages.
  • Warranty is not applicable for supplementary accessories (PSU, cables, antennas) unless defective on arrival.
  • Sino-Network reserves the right to determine whether a product failure is covered under warranty after inspection.
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Step-by-Step Process

HOW TO RETURN DEVICES UNDER WARRANTY

Follow these 5 simple steps to initiate a warranty return. Our team will guide you through the entire process.

1
SUBMIT RMA REQUEST
Fill in the RMA form below with your product and contact information.
↓ Form available below
2
AWAIT REVIEW
Our support engineer will review your request within 1–2 business days.
3
ANSWER QUESTIONS
Follow instructions from the engineer and provide any additional information required.
4
RECEIVE CONFIRMATION
Once approved, you will receive an RMA confirmation number and form via email.
5
SHIP DEVICE
Print the RMA form, pack the device securely, and send it to the address on the form.

PACKAGING

  • Devices must be properly packed, preferably in the original box. The customer is fully responsible for proper packaging when returning products.
  • Include only the device — do not include any accessories, cables, or power adapters.
  • Print the received RMA form and place it inside the package alongside the device.
  • The RMA number and QR code on the printed form must be clearly visible on the outside of the box.

SHIPPING

  • Ship warranty items to the address specified on the RMA form. Contact your support representative if you have any concerns about the shipping address.
  • Customers are responsible for all return shipping costs. Shipping fees are non-refundable.
  • We strongly recommend using a trackable shipping service. Sino-Network is not responsible for items lost or stolen during transit.
  • Return shipping costs for non-warranty repairs are covered by the customer.
Online Submission

RMA REQUEST FORM

Submit your Return Merchandise Authorization request online. Our support team will review and respond within 1–2 business days.

Contact Information
Product Information
If available, this helps us process your request faster.
Fault Description
Get in Touch

SUPPORT CONTACT INFORMATION

Our technical support team is available to assist you. Choose the most convenient way to reach us.

Technical Support
TECHNICAL HELPDESK
For product configuration, troubleshooting, firmware questions, and technical documentation.
support@sino-network.com
Mon – Fri: 09:00 – 18:00 HKT
+852 1234 5678 ext. 2
Warranty & Repair
RMA & REPAIR CENTER
For warranty claims, product returns, and repair service inquiries. Use the RMA form above to submit a request.
rma@sino-network.com
Response within 1–2 business days
Repair Center: Hung Hom, Hong Kong
Sales & Partnerships
SALES SUPPORT
For product inquiries, pricing, OEM/ODM cooperation, and partnership opportunities.
sales@sino-network.com
+852 1234 5678 ext. 1
Mon – Fri: 09:00 – 18:00 HKT
Need More Help?

CAN'T FIND WHAT YOU'RE LOOKING FOR?

Visit our Wiki knowledge base for detailed product documentation, configuration guides, and FAQs — or contact our support team directly.