Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




20 posts

Geek


#225785 5-Dec-2017 17:10
Send private message

I lost my Mi5 so got a new Xiaomi Mi Mix 2 (Awesome phone). It connects to Spark, I can use mobile data and SMS, and i can make calls at home, but not in the Wgtn CBD (Molesworth St, Lambton Quay). Outgoing calls just don't connect; incoming go to voicemail.

 

I went into Spark on Lambton Quay and they had a good look and couldn't see anything wrong in the settings.

 

This is annoying, particularly as Spark can't help but it would appear to be some kind of incompatibility with a certain cell site?

 

I've only had the phone a couple of days, so will continue to try it around Wellington to see if there's a pattern.

 

Is there anyone who might be able to shed some light on cell sites or help with this issue?

 

Many thanks in advance,

 

'Frustrated Simon'.


Create new topic
2213 posts

Uber Geek


  #1913462 5-Dec-2017 17:23
Send private message

Can't help sorry but keen to hear your thoughts on the phone, am tossing up between this or a 5T

 

The MiMix2 is supposedly a world phone so surely can't be a band issue?

 

 

 

 


15933 posts

Uber Geek


  #1913465 5-Dec-2017 17:34
Send private message

Have you tried the sim of another telco such as vodafone? Sounds a very annoying problem. Changing telco may fix it for you.


 
 
 
 


'That VDSL Cat'
11941 posts

Uber Geek

Trusted
Spark
Subscriber

  #1913479 5-Dec-2017 18:17
Send private message

Have you raised a case with the helpdesk on this one?

 

 

 

Checking the network itself, that area is overlaid with both U2100 and U850 so it's certainly not a band issue.

 

 





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


1645 posts

Uber Geek

Trusted

  #1913800 6-Dec-2017 11:17
2 people support this post

First up - are you running the China build of MIUI or Global? Secondly - are you connected to 4G when this occurs?

 

Colleague of mine has a Mi Mix 2 running the China build and can't receive calls - also on Spark - when the device is set to 3G/4G. When locked to 3G only, calls are received fine.

 

I expect switching to the global software will resolve this, although he hasn't gotten around to backing up his data to reflash and confirm this yet.

 

 





Product Manager @ PB Tech

https://pbtech.co.nz/smartphones


133 posts

Master Geek

Trusted
Spark NZ
Lifetime subscriber

  #1913828 6-Dec-2017 12:37
Send private message

Try forcing the phone to 3G / UMTS only and see if pain persists (in CBD).




My comments and remarks are not necessarily of my employer.




20 posts

Geek


  #1914033 6-Dec-2017 19:23
Send private message

Thanks for the replies. Yes, switching to Prefer 3G networks has cured (!) the issue. So not 4G for me... (Can't be arsed switching between the 2 depending on where I am). But not that big an issue.

 

The phone is great, even my mate who got his 2nd iPhone X today (1st was DoA) was impressed. The tiny slot for the ear speaker works surprisingly well. Yet to fully test it but one of the things I love about Xiaomi phones is the complete lack of bloatware - it does come with a browser, weather apps, but minimal other stuff and has Google-goodness preinstalled.


133 posts

Master Geek

Trusted
Spark NZ
Lifetime subscriber

  #1914049 6-Dec-2017 19:44
Send private message

It sounds like the device is 2100Mhz (Band1) only for UMTS. When your at home do you have 4G coverge or is it just 3G ?




My comments and remarks are not necessarily of my employer.


 
 
 
 




20 posts

Geek


  #1914109 6-Dec-2017 20:35
Send private message

Yup, "4G+" whatever that means. I'm not very schooled on networks and frequencies. What irks me is the compatibility (a) only caused issues in the Wgtn CBD, and (b) only affected phone calls - mobile data worked fine...


'That VDSL Cat'
11941 posts

Uber Geek

Trusted
Spark
Subscriber

  #1914111 6-Dec-2017 20:38
One person supports this post
Send private message

angusdog:

 

Yup, "4G+" whatever that means. I'm not very schooled on networks and frequencies. What irks me is the compatibility (a) only caused issues in the Wgtn CBD, and (b) only affected phone calls - mobile data worked fine...

 

 

 

 

4G+ would indicate your getting LTE-CA at home.

 

 

 

The thing to remember about 4G is at this exact point in time, It doesn't carry voice, Only data.

 

Phone needs to drop back to 3G to make the call.

 

 

 

Seems strange that the phone is unable to drop back to U2100 cleanly. Is the risk you take with another country model though.





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


133 posts

Master Geek

Trusted
Spark NZ
Lifetime subscriber

  #1914281 7-Dec-2017 08:27
Send private message

angusdog:

Yup, "4G+" whatever that means. I'm not very schooled on networks and frequencies. What irks me is the compatibility (a) only caused issues in the Wgtn CBD, and (b) only affected phone calls - mobile data worked fine...



If you can DM me your CBD location, I’d like to check out a couple of things.




My comments and remarks are not necessarily of my employer.


1645 posts

Uber Geek

Trusted

  #1914406 7-Dec-2017 10:20

angusdog:

 

Thanks for the replies. Yes, switching to Prefer 3G networks has cured (!) the issue. So not 4G for me... (Can't be arsed switching between the 2 depending on where I am). But not that big an issue.

 

The phone is great, even my mate who got his 2nd iPhone X today (1st was DoA) was impressed. The tiny slot for the ear speaker works surprisingly well. Yet to fully test it but one of the things I love about Xiaomi phones is the complete lack of bloatware - it does come with a browser, weather apps, but minimal other stuff and has Google-goodness preinstalled.

 

 

Please post your MIUI build number from Settings/About. If you have Google apps preinstalled, it may be the official Global ROM, OR it may be an aftermarket 'reseller' ROM full of behind-the-scenes malware. 

 

I highly recommend anyone buying Xiaomi devices from ~random suppliers reflash them with the official global software to be sure they're on the level before entering any personal data. The build number will confirm whether it's the legit global software or a modified version of the Chinese build.

 

 

 

Official software and installation instructions are available here for reference.





Product Manager @ PB Tech

https://pbtech.co.nz/smartphones




20 posts

Geek


  #1915744 9-Dec-2017 18:03
Send private message

MIUI = MIUI Global 9.1 / Stable, 9.1.2.0 (NDEMIEI)

 

Android 7.1.1. NMF26X

 

Thanks for the assistance above and beyond my original question :)


2 posts

Wannabe Geek


  #1939290 15-Jan-2018 18:57
Send private message

I've found a makeshift fix for this issue, until Xiaomi fixes their baseband or Spark unleash their VoLTE.

 

First unlock your bootloader and root your device (if you're using Android Pay or love playing Pokemon Go then go for Magisk, otherwise SuperSU should suffice).

 

After that download "Network Signal Guru" (a free download from the Play Store).

 

Open the software and in the menu select "Lock Bands", LTE, then uncheck "B1: 2100", click OK.

 

That should do the trick.

 

It's a weird issue indeed as there's no B1 coverage in my area however it's still preventing a clean fallback somehow. I'll raise this to Xiaomi and see if they can fix this.


Create new topic



Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Vodafone and Imperial College London invite smartphone users to help fight diseases
Posted 9-Apr-2020 11:09


Unisys Always-On Access Powered by Stealth provides fast, encrypted remote access for workers
Posted 9-Apr-2020 10:00


Intel introduces 10th Gen Intel Core H-series for mobile devices
Posted 2-Apr-2020 21:09


COVID-19: new charitable initiative to fund remote monitoring for at-risk patients
Posted 2-Apr-2020 11:07


Huawei introduces the P40 Series of Android-based smartphones
Posted 31-Mar-2020 17:03


Samsung Galaxy Z Flip now available for pre-order in New Zealand
Posted 31-Mar-2020 16:39


New online learning platform for kids stuck at home during COVID-19 lockdown
Posted 26-Mar-2020 21:35


New 5G Nokia smartphone unveiled as portfolio expands
Posted 26-Mar-2020 17:11


D-Link ANZ launches wireless AC1200 4G LTE router
Posted 26-Mar-2020 16:32


Ring introduces two new video doorbells and new pre-roll technology
Posted 17-Mar-2020 16:59


OPPO uncovers flagship Find X2 Pro smartphone
Posted 17-Mar-2020 16:54


D-Link COVR-2202 mesh Wi-Fi system now protected by McAfee
Posted 17-Mar-2020 16:00


Spark Sport opens its platform up to all New Zealanders at no charge
Posted 17-Mar-2020 10:04


Spark launches 5G Starter Fund
Posted 8-Mar-2020 19:19


TRENDnet launches high-performance WiFi Mesh Router System
Posted 5-Mar-2020 08:48



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.