Xiaomi phone cannot access LTE or 5G, and post "marked as spam"

[jvhs0706]

Hi I just posted this but it was somehow "marked as spam" so I am putting the screenshots here. Also, as I am new to the community, how do you avoid being marked as spam while describing your issues normally?

Orignal PostHSPA+LTENR-SA

[golfball]

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@jvhs0706 wrote:

Hi I searched online and could not find the whitelist, do you mean the one with AT&T? I may see if I could use build.prop to pretend my phone to be a whitelisted one, but according to @softech it seems that it's not very hopeful to do that...

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The Public Mobile VoLTE compatibility list is here, but keep in mind it's not a complete list so some devices that aren't on the list may still work. https://www.publicmobile.ca/en/on/get-help/articles/volte

[jvhs0706]

@softech Thank you again from the explanation, you are right - NSG sometimes show a brief jump onto LTE and then falls back to 3G 😂

[softech]

@jvhs0706 

for having a stable 4G connection you should have as many compatible bands as possible.  Having just one band on 4G won't give you a stable connection at all.  You might get a brief connection at one spot (if that cellular tower happens to have band 5), but once you move away, your connection would drop completely

[jvhs0706]

Seems that there are some fixes that I may consider but I shouldn't really expect them to work... The use of iPhones is almost mandatory if I don't want to buy the international versions of Chinese android phones which are 2x expensive here than in China😂

[jvhs0706]

Hi I searched online and could not find the whitelist, do you mean the one with AT&T? I may see if I could use build.prop to pretend my phone to be a whitelisted one, but according to @softech it seems that it's not very hopeful to do that...

[jvhs0706]

Hi thanks for the prompt reply, and my follow-up question may be stupid as I am not really familiar with communications - could you please explain in which sense 4G "won't work"? Also is it because b4/b66 is needed?

FYI I am in Waterloo, Ontario.

[golfball]

The forum filter does automatically mark some posts as spam, there's no way to tell if your post will trigger it beforehand.

Public Mobile does have a whitelist to access services such as VoLTE and if your phone isn't on the list it may be disabled even if the device can technically support it.

[softech · Accepted solution]

@jvhs0706 

I have to post my reply in screenshot, too (too many numbers and the system treats that as a possible information leak -- worries that someinformation like phone or credit card numbers posted)

**correction to above:

you have a compatible band on 5G, the n78.  But PM needs b66 more than b78.  So for most locations, you won't see 5G on your phone with PM, too