What issues with the drivers? If it was working perfectly, I would say don't fix what ain't broke, but any instability issues or driver incompatibility or higher than normal temps, you may want to flash the stock bios. It's relatively easy and simple, as long as you get the right bios. The folks at techpowerup.com can help make sure you get the right one before you try flashing anything. Alternatively, you can try lowering the core and memory clocks to stock Nitro+ RX 460 OC speeds using MSI afterburner, and see if that solves any of the issues you are having before considering flashing a BIOS. When you ask for a bios, you will need a good picture of the sticker on the card, which you have, but also a close up of a memory chip so they can identify the right bios for the particular brand of memory on your card.