USB modem feeling a bit sluggish? Updating your firmware is one of the easiest ways to unlock better stability, improved connection speeds, and essential security patches. Best of all, you can do it for free.
: Plug the E303s-1 into a USB port without a SIM card inserted. Close any dashboard software that auto-opens. huawei+e303s1+firmware+update+free
Firmware acts as the "brain" of your device. An update can provide: USB modem feeling a bit sluggish
Absolutely not. The E303s1 is hardware-limited to 3G (HSPA+ - 21.6 Mbps down). No firmware can add 4G radios. improved connection speeds