Liangxu Linux

Jan 1, 2024 · Fundamentals

How to Accurately Check Your Phone’s Signal Strength Without Third‑Party Apps

This guide explains how to read detailed cellular signal metrics on iPhone and Android devices using built‑in menus, clarifies dBm units and key parameters such as RSRP, RSRQ, and PCI, and offers tips on Wi‑Fi channel selection, speed testing, and when to file complaints.