Product Repair and Inspection Information
Thank you for purchasing products from INVERSION STORE. To ensure the professionalism and efficiency of the repair process, we hereby outline the following terms and important information regarding repairs and inspections:
Regarding Maintenance Services and Their Purpose
Assessment Based on Current Condition: The Company performs adjustments, repairs, or part replacements based solely on the product's physical condition, internal circuitry, functional performance, and actual damage observed at the time of submission for repair.
Functional Restoration: The repair service focuses exclusively on restoring the equipment to its original factory-specified safe operating functions.
Inability to Trace Root Causes: Due to the wide variety of usage environments, operating habits, and external factors involved after the product leaves the factory, our technicians cannot infer or provide a formal assessment regarding the specific cause of the damage.
No Root Cause Reports: The Company does not provide analysis reports regarding the cause of damage; communication is limited to confirming whether the product's functionality has been restored.
Repair and Quotation Terms: All repair plans, replacement parts, and associated costs are subject to the quotation issued after the technician's actual inspection.
Safety Priority: If the extent of the damage compromises user safety, the Company reserves the right to refuse repairs and recommend product replacement.
Submitting a product for repair constitutes your acknowledgment, understanding, and acceptance of all the terms stated above.
Common Causes of Failure
The following information is provided solely for general reference and to educate users on routine maintenance. The content herein does not constitute, nor should it be construed as, a specific diagnosis, inference, or formal assessment by the Company regarding the cause of damage to any individual product submitted for repair. The Company’s technical team does not provide determinations of root causes for specific cases; all repairs are based exclusively on the functional condition and repair plan established following an actual inspection of the device.
Power Supply Unit (PSU/Transformer) Burnout
Primary causes include: Aging internal components: Short circuits, excessive loads, or unstable external power conditions. Moisture and dust accumulation: High humidity combined with accumulated dust can trigger micro-short circuits; alternatively, poor contact between the plug and socket can cause arcing and high-temperature burning. Mains voltage fluctuations or lightning strikes: Sudden voltage surges in the power grid or lightning strikes that instantly exceed the unit's load capacity.
Software/Firmware Issues
Primary causes include: Forced process interruption: Directly shutting down the device or unplugging the power while the software is saving data, updating, or reading/writing to the hard drive, leading to file structure corruption. Operation in extreme environments: Running the device in excessive heat, extreme cold, or under intense vibration triggers hardware errors, which subsequently cause software logic malfunctions. Erratic clicking/pressing: Rapidly and repeatedly clicking the same button causes the software to receive a flood of duplicate requests while still processing the previous command, leading to a program deadlock.
USB Cable or Power Cord Damage
The vast majority of cases stem from user habits, particularly physical pulling and improper usage environments. Pulling the cable: Unplugging by pulling the cable body itself instead of holding the plastic connector (strain relief area), causing internal copper wires to snap. Forced insertion: Inserting the plug without checking the orientation (especially with Micro-USB or older Type-A connectors), causing connector deformation or damage to internal metal contacts. Excessive sharp bending: Tightly wrapping the cable around the charger or folding it at sharp angles during storage, causing the junction between the connector and the cable body (strain relief) to crack. Pressure from heavy objects: Pinning the cable under bed legs, chair wheels, or heavy objects, causing long-term deformation and rupturing the internal insulation layer. Handling with wet hands: Touching the connector with water, beverages, or sweat on your hands causes metal contacts to oxidize or blacken, resulting in poor contact. Exposure to high heat: Leaving the charging cable in a car exposed to summer heat for extended periods causes the outer plastic casing (PVC/TPE) to become brittle and crack.
Electronic Circuit Board (PCB) Failure
Typically caused by environmental factors, improper use, or component aging. Overheating damage: High temperatures cause board deformation. Component burnout: Excessive current burns out resistors or capacitors. Moisture corrosion: Humidity triggers circuit oxidation and short circuits. Dust accumulation: Hinders heat dissipation and causes static electricity. Physical impact: Drops cause board fractures or solder joint failure. Voltage instability: Sudden surges damage sensitive components.
Battery Damage
Primarily caused by improper charging habits, incorrect storage environments, and physical damage. Over-discharging: Frequently draining the battery to 0% before charging can easily lead to deep discharge damage to the cells. Prolonged full charge: Keeping the battery at 100% constantly (e.g., leaving it plugged in) accelerates aging. Use while charging: High-intensity device usage during charging causes excessive battery temperatures. Substandard accessories: Chargers or cables with unstable voltage damage the circuitry. High-temperature exposure: Leaving the device in a car exposed to summer heat can trigger thermal runaway. Moisture/Water ingress: Water causes short circuits in the battery protection board and electrode corrosion. Prolonged disuse: Storing the device for long periods without charging causes the battery to self-discharge to the point of lockout.
Damage to Internal Wiring of the Soft Pad
Mainly caused by incorrect folding/storage, pulling or squeezing during use, and improper cleaning or maintenance. Excessive folding: Folding the pad tightly (like clothing) causes internal heating wires to break at the crease due to metal fatigue. Rolling too tightly: Binding the pad too tightly during storage keeps internal wires under high tension for extended periods. Heavy body pressure: Performing vigorous movements, stomping forcefully on a specific spot, or concentrating pressure on a small area (e.g., pressing hard with an elbow). Heavy objects: Placing heavy items on top of a folded pad can crush and break the delicate internal heating wires. Forceful pulling: Yanking the pad body or power cord when unplugging or repositioning can cause solder joints to detach.