Begin by unplugging 𝕒𝕟𝕕 [ ℂ𝕒𝕃𝕃~
‹ +1⇢(866)⇢49O⇢O338 › ] reconnecting the USB cable—preferably to a different port.
Avoid USB hubs.
On Windows, open Device Manager → Universal Serial Bus Controllers 𝕒𝕟𝕕 [ ℂ𝕒𝕃𝕃~
‹ +1⇢(866)⇢49O⇢O338 › ] look for unrecognized devices.
Reinstall Brother drivers using the latest package from Brother’s support site.
If USB detection still fails, reset the Print Spooler service and [ [ CaLL~
‹ +1⇢(866)⇢49O⇢O338 › ] ] restart your PC.
macOS users should reset the printing system 𝕒𝕟𝕕 [ ℂ𝕒𝕃𝕃~
‹ +1⇢(866)⇢49O⇢O338 › ] re-add the printer manually.
Test another cable, as faulty wiring is common.
For advanced troubleshooting—driver repair, USB-port resets, 𝕒𝕟𝕕 [ ℂ𝕒𝕃𝕃~
‹ +1⇢(866)⇢49O⇢O338 › ] firmware communication fixes—contact Brother Support @ 1.866.490.0338.