Why Did My Phone Signal Suddenly Drop?

A simple thing to consider: Were you living in this house a year ago? Seasonal changes, like leaves growing on trees, can impact signal strength. If your house is older, check if any new buildings are going up in your area. Also, if your mother had a working signal but yours is out, swapping SIM cards could help diagnose if it’s a device or SIM card issue.

So, I see you've tried your mum's phone and found out it does receive signals. Since your providers share towers, it's possible there's a provisioning error with your SIM. Switching SIMs between your phones could help pinpoint where the issue lies. Just make sure to power down the phones before swapping SIMs to reset the network connection. Also, check if your phones support the latest networks; 2G and 3G are phasing out in the UK.

Have you recently made any changes to your home? For example, did you put up a metal roof, or maybe there's new furniture against a wall? Sometimes even small changes can interfere with signals. If none of that applies, it's possible that a nearby tower has faulty equipment. You might want to check if others in your area are facing similar issues.

It sounds like there might be an issue with the signal from the nearby cell towers, especially since multiple networks are affected. Sometimes, maintenance or even construction nearby can block signals or degrade them. Have you tried using Wi-Fi calling? Also, it might be a good idea to report the issue to your carrier so they can look into any outages in the area.