topic Re: Disappointing 5G performance on iPhone 17 Pro Max in Pointe-aux-Trembles (Low upload & Noise in Get Support

Disappointing 5G performance on iPhone 17 Pro Max in Pointe-aux-Trembles (Low upload & Noise)

Goups007 — Thu, 29 Jan 2026 14:34:16 GMT

Hi everyone,
I recently switched to Public Mobile's 5G service with my iPhone 17 Pro Max, and I wanted to share my findings regarding poor signal quality in the Pointe-aux-Trembles / Repentigny area. Despite being less than 1km away from a Telus tower, my experience has been subpar compared to my previous provider (Rogers).

The Issue:

Download: Decent (varies between 70 Mbps and 130 Mbps).
Upload: Extremely low (between 2 Mbps and 5 Mbps).
Signal Strength: Very weak (-106 dBm to -117 dBm) even when standing outside.

Steps I’ve taken to troubleshoot:

Forced 5G On: Switched from "5G Auto" to "5G On" in Cellular settings.
Force LTE: Switched to "LTE" in Cellular settings.
Reboot: Reboot my phone multiple times
Network Reset: Performed a full Network Settings Reset on my iPhone.
APN Check: Confirmed APN settings are correct (isp.mb.com).
Outdoor Testing: Tested the signal outside to rule out building interference.
Field Test Mode: Checked the technical data via *3001#12345#*.

Technical Observations:

My phone consistently stays on Band 71 (600 MHz) with a very narrow bandwidth (15 MHz). More importantly, my SINR (Signal-to-Interference-plus-Noise Ratio) is heavily negative (around -29 dB), indicating massive interference or a very "noisy" signal in this sector.

It seems like the Telus/Public Mobile infrastructure in this specific area is either congested or poorly optimized for 5G, especially for the upload link.

Has anyone else in the East End or Repentigny noticed this "false" 5G coverage where the icon is there, but the performance isn't?

Re: Disappointing 5G performance on iPhone 17 Pro Max in Pointe-aux-Trembles (Low upload & Noise

slusagm — Thu, 29 Jan 2026 14:37:32 GMT

@Goups007

the post has lots of technical deails, but we are only customers here

do you have the same issue in other region or mainly in a particular area? 4G LTE works better? You might think 4G not the greatest, but with a 5G plan you have , you will get the same download speed using 4G

and if you want to report your issue, you have to have open a proper ticket with PM

Simply open ticket with PM using the Orange Chatbot icon on the lower right. (For 2FA code when login, use email to receive code instead of SMS if you cannot receive the text on the phone.) When open Chatbot ticket, Type the question Submit ticket and select Contact Us to get to ticket open screen

But if you have trouble using Chatbot to open ticket, then message PM using this link:
https://productioncommunity.publicmobile.ca/t5/notes/composepage/note-to-user-id/22437

PM will reply to your community inbox, between 9AM-10PM EST (Mon-Sun), check here:
https://productioncommunity.publicmobile.ca/t5/notes/privatenotespage

Re: Disappointing 5G performance on iPhone 17 Pro Max in Pointe-aux-Trembles (Low upload & Noise

SKSuh — Thu, 29 Jan 2026 14:46:14 GMT

Canadian 5G is mostly marketing-speak for tricking consumers into paying more for already pricey cellular rate plans

Even though I too have a 5G CA US MX plan, my iPhone 15 Pro Max is usually set to LTE as it works just fine for my daily use

Re: Disappointing 5G performance on iPhone 17 Pro Max in Pointe-aux-Trembles (Low upload & Noise

Nhithao — Thu, 29 Jan 2026 15:26:19 GMT

A few things you can do:
- go to telus tower in your place or different locations where telus tower exists (there is a map for you to check) and test it out your theory of noise signal
- set your phone to 4G LTE can help