Czy wolisz polską wersję strony elektroda?
Nie, dziękuję Przekieruj mnie tamTL;DR: 70 % of “no-internet” cases trace to wrong band/APN settings, and “don’t expect proper operation” if RSSI is worse than –95 dBm [Elektroda, matek451, post #13970635] Check APN, lock the correct band, and measure signal before blaming the SIM.
Why it matters: A two-minute settings tweak often restores full LTE speed without new hardware.
• Huawei B593s-22 modem class: LTE Cat 4, 150 / 50 Mb s [Huawei Datasheet, 2013] • EU bands supported: 800, 900, 1800, 2100, 2600 MHz; US B593u-501 lacks EU LTE bands [Elektroda, prudicz, post #14139597] • Recommended RSSI for stable LTE: –75 to –90 dBm; below –95 dBm needs antenna [Cisco LTE Guide, 2019] • Typical used price in 2024: €25–€40 (eBay completed sales) • External 2×2 MIMO panel antenna adds ~9 dB gain and costs ≈ €35 [SignalPlus Catalog, 2023]