There are different hardware revisions of the E586. The E586 and E586Es are slightly different. Ensure the firmware you download matches your specific model number found under the battery.
You cannot choose the without knowing your baseline. Follow these steps:
Most users seek a firmware update for the Huawei E586 for one of two reasons:
that adds features like IPv6 support, TTL mangling, and root access, these carry a high risk of bricking your device and are generally not recommended for the unless you have a specific technical need. : Even with the best firmware, the