Limited Warranty and Technical Support Policy

Last updated: 26 October 2026

1. Our commercial warranty

Shenzhen Huasifei Technology Co., Ltd. provides a one-year commercial warranty for HUASIFEI hardware purchased through this website, including routers, PCBA boards, supplied cellular modules and accessories, starting on the date you receive the goods. It covers product quality defects under the terms below. This warranty is additional to statutory rights and does not shorten any mandatory period or limit remedies available under applicable law.

For bulk or customized projects, the applicable written contract may specify additional or different commercial warranty arrangements, subject to mandatory law.

2. Requesting assistance

Contact huasifei@gmail.com and provide your order number or other reasonable proof of purchase, model, hardware revision, date received and a description of the problem. If relevant, include photographs, error messages, the installed firmware, modem and the steps already tried.

Please avoid sending passwords, private keys, SIM account credentials or other unnecessary secrets. Remove sensitive information from screenshots and diagnostic logs before sharing them.

We may ask you to complete reasonable diagnostic checks so that we can distinguish a product defect from a configuration, power, carrier or network issue. Our technical checks will not remove or improperly delay a remedy required by law.

3. Replacement handling

Please contact us first about a retail quality issue. We provide one-to-one assistance and a specific resolution plan after reviewing the issue with you, including any diagnostic checks, return instructions and replacement arrangements needed. This process does not make mandatory remedies subject to our discretion.

For a verified quality defect covered by this commercial warranty, replacement or reshipment is our preferred remedy, subject to any alternative remedy required by applicable law. We will explain the next steps and whether the original product needs to be returned. Do not send goods back until you receive our instructions.

If replacement cannot reasonably be provided, we will discuss an appropriate resolution with you and comply with any remedy required by applicable law. We will not charge a replacement fee or substitute a materially different model without a lawful basis and any agreement required from you.

If a return is needed, the customer bears the cost of shipping the product back to HUASIFEI unless applicable law requires us to pay. Contact us first for return instructions. We will explain the replacement shipping arrangements and any applicable charges in your individual resolution plan before you agree to proceed, subject to applicable law. This does not, by itself, assign replacement outbound shipping costs to the customer. Separately agreed business procurement, bulk and OEM or ODM freight terms are governed by the applicable quotation or contract. Mandatory rights and any legally required cost-free remedies take precedence.

A replacement continues the remaining period of the original one-year commercial warranty, calculated from the date you received the original product. Replacement does not restart that commercial warranty period. This does not shorten any statutory period or remove any legal rights relating to the replacement.

4. Firmware and hardware changes

We provide factory firmware and guidance appropriate to the supported model and hardware revision. Before flashing firmware, check the exact device target, flash type and revision. Factory firmware and upstream OpenWrt releases may differ.

Opening a product or using third-party firmware does not automatically remove statutory rights. We assess the reported issue on its facts, including whether a particular change actually caused the fault. Any warranty exclusion remains subject to applicable law.

Damage or a fault caused by unauthorized physical alteration or tampering with the hardware is not covered by this commercial warranty. We will explain the connection between the alteration and the reported fault when applying this exclusion. A modification does not, by itself, remove statutory remedies for an unrelated defect.

You may still contact us for technical assistance with altered hardware. The assistance available depends on the model and issue; this does not promise that every altered product can be repaired or that all assistance, parts or shipping will be free. We will explain any proposed charge before you agree to a paid service.

5. Technical support

We provide factory firmware for supported products. Contact us about the availability of recovery guidance or remote troubleshooting for your exact model and issue.

You may submit enquiries at any time. Our team responds during our support hours: Monday to Friday, 09:00 to 19:00 Hong Kong time (UTC+8). Enquiries received outside these hours will be handled when our support hours resume. We do not provide round-the-clock live support.

Initial assistance does not mean that diagnosis, replacement or final resolution will be completed at the same time.

6. Contact

Warranty and technical support: huasifei@gmail.com
Warranty provider: Shenzhen Huasifei Technology Co., Ltd.
Operational contact address: B13, Building A, Konka Guangming Technology Center, No. 288 Xingxin Road, Shenzhen, Guangdong 518107, China.