I have got a LImeSDR-USB which has USB3 connector, however, from the LimeSuite software I always notified it’s USB2 driver, and the official online document reminds me of the USB3 upgrading method is outdated, so if there is a newly updated approach to safely upgrage USB2 driver to USB3, BTW my system is windows 11. thanks
I have no Win11 experience but did you try on different PC with different OS? Different USB cable? Try to connect LimeSDR to motherboard USB connector directly not on PC case front connectors. You can visually inspect your Lime for cold joints between pcb and connector.