ASUS ROG phone 6 256gb 4G+ speeds slow

BTTmanBTTman Level 1
edited November 29 in ROG Phone 6

Please tell us some basic information before asking for help:

  1. Model Name: Asus ROG phone 6 256gb
  2. Firmware Version: WW_32.2810.2209.197
  3. Rooted or not: Not rooted
  4. Frequency of Occurrence: happens all the time
  5. APP Name & APP Version (If your issue relates to the app):

In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.


I just got new sim card and my old phone s20 ultra beats this phone mobile network speeds by huge marginal!

I have tried to same server for each phone and s20 ultra got nearly 3 times better score with this sim card. Is there something I could do to improve result. Even YouTube struggles to work on mobile network

Also my old sim card worked fine with this phone but not this new one..


  • thuggsthuggs Level 1

    Really hard to trouble shoot with all the different variables. Download an app that tells you what network you are on such as (LTE Discovery) and make sure each phone is on the same network band.

    Also it could help to ask your carrier for a re-provision for the phone with the SIM. They will reset the APN and such, i would do this first.

  • BTTmanBTTman Level 1
    edited October 29

    It is always B3/B20 connection and not B1 as on my old s20 ultra 5G so is this my phone problem or what?

    This is my current phone active connection and it is not even connecting to B1 tower...

    Edit: also what does CA mean? In my old phone it is just LTE

  • CA = Channel Aggregation

    The ROG 6 can 'in theory' simultaneously use 6 frequency bands for download and 2 for upload, specs below

    LTE: DL 6CA Cat20 up to 2.0 Gbps / UL 2CA Cat18 up to 211 Mbps

    It depends on the need, the country, the operator and the possibilities of the antenna where you are connected and those nearby.

    Indicate your country, the operator and you have purchased the phone distributed by asus for your country

  • i sugest you open new APN with modern settings

    i have in israel old apn settings for Partner company still as Orange with very old APN settings

  • BTTmanBTTman Level 1

    I have modern settings with my new sim. But still got poor speeds. I think this phone can't do more no matter what I do with it

  • BTTmanBTTman Level 1

    My country is Finland and operator Telia and purchased from Elisa in Finland

    So should work fine in Finland or what?

  • BTTmanBTTman Level 1

    I think Telia network does not like this kind of phone. Because I have tried another sim too with same 200 megabyte 4G connection and got same results..

  • I have just checked the Telia subscriptions and offers and found that the speed differentiates all 4G and 5G offers, apart from offering a specific speed for a subscription is controlled with the account and the characteristics of the phone, IMEI is the most used, some operators use the model name.

    It would be good to test the speed with a smartphone that is NOT an iPhone, Xiaomi, Nokia, Motorola, OnePlus or Samsung Galaxy as these are the brands of devices sold and therefore certified by Telia.

    Telia must have had a bad experience with ASUS, they sold the ROG Phone and didn't continue with ASUS for 2 and the following!!!

    You should still diagnose with Telia, I did not find a single Clause or restriction that guarantees that the speed of the subscription is only guaranteed with devices sold by them

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