BE85 firmware update fails when several package options appear

The most likely cause is that you have downloaded or been offered two firmware files, and one of them (the one with "RSA2048" in its name) is meant for routers with a different security signature check, so the router rejects the wrong file or the update tool gets confused about which to use. 1. Before doing anything else, check the router's label or the model page on the manufacturer's support site to confirm your exact hardware version. The "SP1v2" part of the file name is a hint, but verify it yourself. 2. Log in to the router's web admin page (usually 192.168.0.1 or 192.168.1.1), go to the firmware or system update section, and look for a notice that says which file is required for your model. If it says nothing, the standard file is the safer bet. 3. Pick the file without "RSA2048" in its name, since that is the more common choice for this kind of update. Only use the RSA2048 file if the manufacturer's instructions specifically require it. 4. Make sure the file is complete. Re-download it directly from the manufacturer's site, and do not rename it. Compare the file size or checksum against the published values if they are listed. 5. Connect the computer to the router with an Ethernet cable rather than Wi-Fi, and do not let the computer sleep during the update. 6. Do not power off or unplug the router while the update runs. Wait the full time the page indicates, even if the progress bar seems stuck. 7. If the update fails again, reboot the router and try once more with the same file. If none of this works: contact the manufacturer's support with your exact model, hardware version, current firmware version, and the exact error message. I am not certain which file is correct for your unit, so their confirmation is the reliable answer.