Before purchasing or requesting support for a Qmadix mobile accessory, customers should be aware that the brand’s former website no longer provides official product or customer-service information. Qmadix products may still be available through retailers and third-party marketplace sellers, but support options depend on the product, seller, purchase date, packaging, and warranty administrator.
Qmadix has sold phone cases, charging cables, wall and vehicle chargers, power banks, mounts, tempered-glass screen protectors, and Invisible First-Defense liquid and NanoGlass screen-protection products.
How to Contact Qmadix Customer Service
Current Qmadix support information is limited:
- Current Verified Customer-Service Phone Number: Qmadix does not currently publish a verifiable general consumer-support number.
- Former Customer-Service Number: 1-844-651-2319 appears in older listings but is not currently confirmed by an active official Qmadix support page.
- Historical Corporate Phone Number: 1-818-988-4300 appears in business directories but is not confirmed as a current consumer-support line.
- Historical Support Email: customerservice@qmadix.com appears in older warranty documents, but its current availability cannot be confirmed.
- Screen-Protection Warranty Registration: Qmadix Product Registration
- Retail Purchases: Use the order history or customer-service department of the retailer that processed the transaction.
- Public Business Filing Address: Qmadix Inc., 21606 Devonshire Street, Unit 5587, Chatsworth, CA 91313
- Former Website: Qmadix.com should not currently be used to submit personal, payment, device, or warranty information because it no longer displays Qmadix brand-support content.
The former address at 14724 Ventura Boulevard in Sherman Oaks should not be presented as Qmadix’s current customer-service address. Customers should also avoid sending products to a corporate or public filing address without written return authorization.
Which Qmadix Support Option Should You Use?
Products Purchased From a Retailer
Customers who purchased Qmadix products through Walmart, Amazon, a wireless carrier, an electronics store, a marketplace seller, or another retailer should begin with that seller.
The retailer generally controls:
- Order tracking
- Order cancellations
- Shipping problems
- Missing packages
- Products damaged during delivery
- Returns and exchanges
- Refund processing
- Marketplace seller disputes
Use the order confirmation or receipt to determine which business processed the purchase. A Qmadix product displayed on a large retail website may be sold and shipped by an independent marketplace merchant rather than the retailer itself.
Return periods and product eligibility depend on the seller’s policy. Begin the request promptly, especially when the product arrived damaged, was described incorrectly, or does not fit the intended device.
Qmadix Warranty Questions
The current Qmadix-branded registration page is specifically intended for qualifying Invisible First-Defense+ Liquid Glass and Invisible First-Defense+ NanoGlass screen-protection products.
It is not presented as a general support page for every Qmadix case, cable, charger, mount, battery, or accessory.
Customers seeking warranty assistance should review:
- The product packaging
- The printed warranty insert
- The purchase receipt
- The retailer’s product listing
- Any registration confirmation
- The instructions supplied by the warranty administrator
Do not assume that the warranty terms for one screen protector apply to every Qmadix product.
Qmadix Screen Protector Warranty Registration
The current registration page applies to the following products:
- Invisible First-Defense+ Liquid Glass Screen Protector
- Invisible First-Defense+ NanoGlass Screen Protector
The registration page states that qualifying products may be sold with guarantee limits of $100, $150, or $250, depending on the product package.
Important requirements include:
- The protection is valid in the United States only.
- The product must be registered within 30 days of the purchase-receipt date.
- Each warranty serial number must be registered separately.
- One eligible device can be registered for each serial number.
- The customer must retain the original receipt.
- The registration information cannot be changed after submission.
- The registration page describes a 12-month limited warranty-protection period beginning on the purchase date.
The page states that claim processing and claim-status questions are handled by an outside warranty administrator. Instructions identifying the administrator and claim process are provided after successful registration.
Completing a registration does not guarantee approval of a future claim. Claims remain subject to the complete terms, exclusions, proof requirements, damage assessment, and benefit limits.
Information Needed for Registration
The registration page requests:
- The warranty serial number found inside the product packaging
- A clear image or scan of the purchase receipt
- The purchase date
- Information about the protected device
- The device’s 15-digit IMEI when registering a cellular handset or tablet
An IMEI is sensitive device-identification information. Submit it only through the applicable warranty-registration process after confirming that the page and product documentation correspond to the purchased product.
Do not post an IMEI, warranty serial number, receipt, telephone number, or home address in a public review.
How to File a Qmadix Screen-Damage Claim
Customers who completed registration should use the claim instructions supplied after registration or in the confirmation materials.
Prepare:
- The registration confirmation
- The original purchase receipt
- The warranty serial number
- The registered device information
- Photographs of the damaged screen
- Photographs of the Qmadix product when requested
- A repair estimate or completed repair invoice
- The date and description of the damage
- Any previous claim or case number
Follow the administrator’s instructions before repairing the device when the terms require advance authorization. A claim may be denied if required evidence is missing or if the repair was completed without following the stated procedure.
A guarantee limit represents the maximum potential benefit under the applicable terms. It does not necessarily mean that every approved claim receives the full advertised amount.
Older Qmadix Warranty Documents
Older Qmadix warranty materials described warranty coverage of up to one year for many accessories and limited-lifetime replacement coverage for certain tempered-glass screen protectors.
Those documents may not apply to every product currently being sold. Warranty terms can vary according to:
- The product
- The date it was manufactured
- The purchase date
- The seller
- The country
- The packaging and warranty insert
- Whether registration was required
The warranty document supplied with the exact product should be treated as the primary source. Customers purchasing older inventory should examine the packaging and confirm that the stated support or registration process is still operating before relying on an advertised warranty.
Qmadix Returns and Refunds
Qmadix does not currently operate a verifiable direct online store through its former website. Returns will therefore usually be governed by the retailer or marketplace seller that accepted the order.
Before requesting a return, gather:
- The order number
- The purchase date
- The seller’s name
- The product name and model number
- The device the accessory was intended to fit
- Photographs of the product and packaging
- A description of the defect or compatibility problem
Do not mail a product to Qmadix or a public business address unless the seller, manufacturer, or warranty administrator provides written authorization and a specific return address.
Keep the shipment tracking number and photograph the product before mailing an approved return.
Qmadix Product Compatibility
Many Qmadix accessories were designed for specific generations of Apple, Samsung, Motorola, LG, and other devices. Device names can be similar even when dimensions, cameras, buttons, ports, and charging requirements differ.
Before purchasing, confirm:
- The complete phone or tablet model
- The model number in the device settings
- The screen size
- The camera layout
- The charging connector
- The charger’s voltage and wattage
- Wireless-charging compatibility
- Whether another case or accessory will interfere
A case designed for one generation of a phone may not fit the next generation, even when the devices use similar names.
Older chargers and cables may also use Micro-USB, older Apple connectors, or charging standards that do not match a current device.
Qmadix Cases and Screen Protectors
Inspect a case or screen protector before installation. Look for:
- Cracks or chips
- Distorted materials
- Missing adhesive
- Incorrect cutouts
- Packaging that identifies another device
- Signs that the product was previously opened or used
Follow the installation instructions included with the product. Screen protectors can develop bubbles, lifting, poor adhesion, or alignment problems when the screen is not cleaned properly or the protector is installed in a dusty environment.
Liquid-glass or NanoGlass products may not create a visible removable layer in the same way as conventional tempered glass. Customers should understand the difference between a coating product, a physical screen protector, a replacement warranty, and device insurance.
Qmadix Chargers, Cables, and Power Products
Before using an older charger, cable, vehicle adapter, or power bank:
- Inspect the cord and connectors for damage.
- Confirm the electrical ratings.
- Verify compatibility with the device.
- Do not use a swollen or damaged battery product.
- Stop using a product that becomes excessively hot.
- Do not use a charger that sparks, smells burned, or fits loosely.
- Avoid using a product exposed to water or significant impact.
Older accessories may charge a newer device slowly or may not support current fast-charging standards. Faster charging requires compatible equipment at every point, including the power adapter, cable, device, and charging protocol.
Products Purchased From Marketplace Sellers
Some Qmadix products may be older, discontinued, opened, refurbished, or sold as remaining inventory.
Before ordering from a marketplace seller, review:
- The seller’s name and rating
- Whether the product is new or used
- The exact model number
- The return period
- Who pays return shipping
- Whether the original packaging is included
- Whether a warranty serial number has already been registered
- Whether the manufacturer’s warranty is promised in writing
A warranty that requires registration within 30 days of the original receipt may not be available for used, opened, previously registered, or old-stock products.
Ask the seller for clarification before purchasing when warranty protection is an important part of the decision.
Unrecognized Qmadix Charges
Because Qmadix products are commonly sold through retailers, the merchant name on a billing statement may be the retailer or marketplace seller rather than Qmadix.
When an unfamiliar charge appears:
- Review email receipts and order histories.
- Ask household members whether they placed an order.
- Confirm whether a marketplace seller used a different billing name.
- Use the retailer’s support process.
- Notify the payment provider when the transaction remains unauthorized.
Do not provide full payment-card information through an unverified website, email address, or telephone number.
How to File a Qmadix Customer Service Complaint
Customers with an unresolved product, warranty, return, or claim concern can use the following process:
- Identify the seller. Use the retailer or marketplace seller for order, delivery, return, and refund problems.
- Review the product documentation. Check the packaging, receipt, warranty insert, and registration requirements.
- Use the warranty administrator. Registered screen-protection claims are handled by the administrator identified after registration.
- Save supporting records. Keep photographs, receipts, serial numbers, claim forms, repair estimates, and previous messages.
- Request a case number. Keep all correspondence associated with the same claim.
- State the requested resolution. Explain whether you want a replacement, refund review, claim payment, compatibility correction, or written explanation.
- Use the payment provider when appropriate. A billing dispute may need to be submitted to the card issuer or payment service within its required time limit.
A useful complaint should include:
- The product name and model number
- The date and place of purchase
- The order or receipt number
- The device involved
- The warranty registration date
- The claim or case number
- A concise description of the problem
- The requested resolution
Do not publish an IMEI, warranty serial number, receipt, order number, payment information, home address, or account password in a public comment.
About Qmadix
Qmadix is a California mobile-accessory company founded in 2003. The brand has marketed protective cases, screen-protection products, charging accessories, cables, mounts, power banks, and other mobile-device products.
A public-record listing last updated in 2025 identified Qmadix Inc. as an active California corporation. However, the company’s former consumer website no longer contains Qmadix brand information, and current direct consumer-support operations are unclear.
Some retailers continue to display Qmadix products, including older accessories for previous generations of mobile devices. Customers should verify seller, compatibility, condition, return eligibility, and warranty availability before purchasing.
Qmadix Customer Reviews and Complaints
Customer experiences can differ depending on the product, seller, device, purchase date, warranty registration, and outside claim administrator.
A useful Qmadix review should identify:
- The exact accessory and model number
- The device used with the product
- The retailer or marketplace seller
- The purchase date
- The compatibility, quality, or warranty concern
- Whether registration was completed
- The support method used
- Whether the problem was resolved
Customers researching mobile-device companies may also find these CustomerServiceNumbers.com pages helpful:
Qmadix Customer Service Frequently Asked Questions
What is the Qmadix customer service phone number?
Qmadix does not currently publish a verifiable general consumer-support number. The former number 1-844-651-2319</a appears in older listings but cannot currently be confirmed through an active official support page.
Is Qmadix.com still the official support website?
The domain no longer displays Qmadix brand or customer-support content. Customers should not enter personal, device, warranty, or payment information there.
Does Qmadix have an email address?
Older warranty documents used [customerservice@qmadix.com](mailto:customerservice@qmadix.com), but the current operation of that address cannot be confirmed.
How do I register a Qmadix liquid-glass warranty?
Use the Qmadix product-registration page for eligible Invisible First-Defense+ Liquid Glass and NanoGlass products. Registration must be completed within 30 days of purchase.
How long does the Qmadix screen-protection warranty last?
The current registration page describes 12 months of limited warranty protection beginning on the purchase date for eligible registered products.
What information is needed for Qmadix registration?
Customers need the warranty serial number, purchase receipt, device information, and the IMEI for an eligible cellular device.
Who handles Qmadix warranty claims?
The current registration page states that an outside warranty administrator handles claim processing and claim-status questions. Instructions are provided following registration.
Can I register after 30 days?
The current page requires registration within 30 days of the receipt date. A late registration may not qualify.
Who handles a Qmadix return?
The retailer or marketplace seller that processed the purchase generally controls cancellations, returns, exchanges, shipping issues, and refunds.
Can I return a Qmadix product to the corporate address?
Do not send a product to a corporate or public filing address without written authorization and a designated return address.
Are Qmadix products still available?
Some retailers and marketplace sellers continue to list Qmadix accessories. Availability, condition, compatibility, and warranty eligibility vary.
Where is Qmadix located?
A public-record listing updated in 2025 gives Qmadix Inc. a filing address at 21606 Devonshire Street, Unit 5587, Chatsworth, California 91313. This should not be treated as an authorized product-return location.
Customer Service Numbers Disclaimer
CustomerServiceNumbers.com is not associated with Qmadix Inc., any Qmadix warranty administrator, retailer, marketplace seller, wireless carrier, manufacturer, repair provider, or payment processor.
The information on this page is provided for general informational purposes and may change. Product warranties, registration, claims, returns, compatibility, and refunds are governed by the documentation supplied with the product and the applicable seller or administrator terms.
CustomerServiceNumbers.com also provides a rating, review, and comment section where visitors can describe their own experiences. Do not publish an IMEI, warranty serial number, receipt, order number, payment information, account password, home address, or other sensitive personal information in a public comment.