Frequently Asked Questions
Find answers to common questions about our precision tools and electronics
How do I update the firmware on my FNIRSI device?
Connect your device to a PC via USB, download the latest firmware from our official website, and drag the file into the device folder while in bootloader mode.
Do your oscilloscopes come with probes included?
Yes, all FNIRSI oscilloscopes include standard high-quality probes and necessary calibration tools in the package.
Are FNIRSI products covered by a warranty?
We provide a 12-month manufacturer warranty on all electronic instruments covering hardware defects under normal use.
Where can I download the user manuals?
Digital manuals for all multimeters, testers, and oscilloscopes are available in the 'Download' section of our website.
Can I use the USB testers for fast-charging protocols?
Yes, our advanced USB testers support various protocols including QC 2.0/3.0, PD, and VOOC for comprehensive power analysis.
Are the devices calibrated before shipping?
Every FNIRSI instrument undergoes factory calibration and testing to ensure accuracy according to the listed specifications.