Migliaccio & Rathod LLP is investigating the AVM Fritz!Box 6890 LTE and related 7590 routers for a potential voltage-converter design defect that may lead to premature hardware failure.
Reported Issues
Independent hardware analysis has identified recurring design concerns:
- A mis-sized ceramic capacitor (1 nF instead of the MP1477 converter’s required 100 nF) installed in the central supply branch
- Voltage instability causing premature component wear or sudden failure
- Similar design-level issues reported in the related AVM Fritz!Box 7590
- Growing consumer reports of routers failing with identical symptoms attributed to the same converter design
This is not a firmware or thermal issue—it is an alleged component-specification deviation tied to hardware instability.
Why Consumers Should Be Concerned
A router containing voltage-converter components that fail to meet manufacturer specifications may present a latent defect affecting long-term reliability. Potential claims include:
- Design-defect theories under state law
- Failure to disclose known hardware vulnerabilities
- Implied warranty violations where essential power-regulation components fail prematurely
- UDAP claims for marketing the devices as high-reliability networking equipment despite known electrical constraints
Signs You May Be Affected
- Own a AVM Fritz!Box 6890 LTE or AVM Fritz!Box 7590 that failed unexpectedly
- Observed power-cycling, unstable voltage behavior, or early hardware death
- Device failed shortly after warranty expiration
- Multiple replacements showing the same symptoms
If these issues apply, fill out the form below or contact [email protected] or (202) 470-3520.