Support
Troubleshooting & FAQ
Step-by-step guides for common issues — no-audio, Bluetooth pairing, firmware errors, and more.
Repair & exchange (RMA)
Submit a return, check repair status, or download the RMA form. Online submission now available.
Warranty
Check warranty coverage, register a product, or explore extended warranty options by region.
Product registration
Register your EV product to activate warranty, receive firmware notifications, and access support priority.
Certification & compliance
CE, FCC, RoHS, EN 54 declarations of conformity and regulatory documentation by product and region.
Product security
Security advisories, vulnerability disclosures, and firmware security notices for networked EV products.
Frequently asked questions
Download the latest firmware from the Downloads Hub, connect via USB, and follow the QuickSmart App update flow. A full step-by-step guide is on the EVERSE 8 support page.
Coverage ranges from one to five years depending on the product, with extended warranty up to five years available on qualifying products. Register your product to activate coverage and see your regional warranty conditions on the Warranty page.
Check the amplifier connection with a known-good test speaker, verify the wiring pairs and polarity, and — if a subwoofer is used — confirm the subwoofer input-panel wiring is correct.
Use the Downloads library and filter by your product to find manuals, firmware, A&E / spec sheets and EASE data.
Contact support
North America
Technical support
- +1 800 289 0096
- technicalsupport.nam@keenfinity-group.com
Mon – Fri, 9 am – 5 pm CST
Europe, Middle East & Africa
Technical support
- +49 89 9270 1000
Mon – Fri, 9 am – 5 pm CET
Latin America
Technical support
- +55 19 3116-1129
- latam.boschsecurity@keenfinity-group.com
Mon – Fri, 9 am – 5 pm BRT
Asia Pacific
Technical support
- Australia, New Zealand: TechnicalSupport.au@keenfinity-group.com
- India & South East Asia: TechnicalSupport.emea@keenfinity-group.com
- Japan: TechnicalSupport.jp@keenfinity-group.com
Regional hours vary
China, Taiwan, Macao, Hongkong
Technical support
- TechnicalSupport.cn@keenfinity-group.com
Regional hours vary
Mon – Fri, 9 am – 5 pm CST