How get 4g+ | 4.5g on K20 Pro ? - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

HI guys, anybody find a way for 4.5g on the k20 pro ?
below link is for mi9 but not work on k20 pro.
https://forum.xda-developers.com/Mi-9/how-to/enable-4g-4-5g-carrier-aggregation-mi9-t3977213
its impossible ? or not ?

I think that depend on the network provider.
I have Mi9t pro Vodafone carrier, and sometimes i get 4g+ signal on statusbar.

I'm not convinced it's possible on the Mi 9.
If you read the thread you'll see that people have messed up their radio trying it and lost network connectivity. If I had the Mi 9 I wouldn't consider that guide for a second. Looks like a sure way to screw up the phone.

On the stock miui10 I get 4g+ all the time on the Portuguese meo network carrier, no mods.

I got 4G+ at most of the places I have travelled in my country India

In UK 4g+ is when You downloading something bigger. When is only in standby or low speed nessesary is only 4g. Is no reason to be with carrier aggregation all time.
Sent from my Mi 9T Pro using Tapatalk

4G+ / 4.5G should be automatically activated if your network supported these combinations: https://cacombos.com/device?model=M1903F11G .

Masih_zh said:
HI guys, anybody find a way for 4.5g on the k20 pro ?
below link is for mi9 but not work on k20 pro.
https://forum.xda-developers.com/Mi-9/how-to/enable-4g-4-5g-carrier-aggregation-mi9-t3977213
its impossible ? or not ?
Click to expand...
Click to collapse
It depends on provider/subscription but also on your CA capabilities as negotiated by firmware.
Maybe if you have Chinese firmware, Carrier aggregation would not work in the West
Successfully tested 4G+ LTE Carrier Aggregation (Primary cell b3, Serving cells b1, b20 = 20+20+15 MHz bands aggregated) on Mi 9T, QFJEUXM 11.0.5:
https://forum.xda-developers.com/showpost.php?p=82708207&postcount=55

Masih_zh said:
HI guys, anybody find a way for 4.5g on the k20 pro ?
below link is for mi9 but not work on k20 pro.
https://forum.xda-developers.com/Mi-9/how-to/enable-4g-4-5g-carrier-aggregation-mi9-t3977213
its impossible ? or not ?
Click to expand...
Click to collapse
Your carrier will need to support it. Sometimes, carrier purposely disable CA during peak hours. You can check whether it detects the secondary serving in 4636 mode.
Like below:
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[Q] Lenovo K3 Note and 4G in the UK - London

Hi All
1st time post just got my K3 and have been using this thread as a informed KB, I have rooted and have the latest Vibe rom which is Android 5.0 . I also have the Google app store and play services from , can't post links as i have less than 10 posts
What i am trying to understand is why i don't have a 4G even though the Sim is 4G and it works as 4G in a Galaxy S4 , is this a Rom limitation ?
Thank you
zayn81 said:
Hi All
1st time post just got my K3 and have been using this thread as a informed KB, I have rooted and have the latest Vibe rom which is Android 5.0 . I also have the Google app store and play services from , can't post links as i have less than 10 posts
What i am trying to understand is why i don't have a 4G even though the Sim is 4G and it works as 4G in a Galaxy S4 , is this a Rom limitation ?
Thank you
Click to expand...
Click to collapse
I have the same issue. Have you found a solution?
Not a ROM limitation. Have a look what frequencies your mobile operator uses for LTE. The K3 note can only use these.
Networks:
2G: GSM 900/1800/1900MHz
3G: WCDMA 850/900/1900/2100MHz
4G: FDD-LTE 1800/2100/2600MHz
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doop said:
Not a ROM limitation. Have a look what frequencies your mobile operator uses for LTE. The K3 note can only use these.
Networks:
2G: GSM 900/1800/1900MHz
3G: WCDMA 850/900/1900/2100MHz
4G: FDD-LTE 1800/2100/2600MHz
Click to expand...
Click to collapse
So if you're on o2 you're screwed?
Afraid so. I`m with giffgaff which runs on the O2 network but I don`t use 4g as it`s patchy at best where I am. It`s a great phone for the money.
Hi,
i got my Lenovo K3 Note too..
Even i have a network problem..
i even can't use my network connection..
this is a link to the frequencys, my provider use..
http://www.frequentieland.nl/gsm/gsm_nl_f.htm
I have KPN and i am from Netherlands..
Can anybody help me out?
Btw, i have rooted it and installed CM12 on it..
Same problem giffgaff as well grr spouse you get what you pay for
I got my k3 note. I'm annoyed by the auto launch app after finished install from Google play.. any idea how to get rid of it?

TA1005 band 12?

Does TA1005 model have band 12? Some sites say yes, some no? Thanks
zboy2 said:
Does TA1005 model have band 12? Some sites say yes, some no? Thanks
Click to expand...
Click to collapse
I might have an answer to this. I recently bought a TA-1005 SS HK 11A1NB21A05 variant. On the box label it lists these LTE Bands 1/2/3/4/5/8/12/13/17/20/28/38/40/41.
This is odd because for some reason Nokia Support when I last checked stated that there were no variants of the Nokia 8 Sirocco available that supported US LTE bands. On the box label it clearly shows otherwise. Other sites and LTE band checking sites are conflicting too.
Do you know if there is a way to check band locking or available bands from a diag menu? I know of the Info menu available from the dialer, but maybe there are other hidden menus to confirm this with.
nate0 said:
I might have an answer to this. I recently bought a TA-1005 SS HK 11A1NB21A05 variant. On the box label it lists these LTE Bands 1/2/3/4/5/8/12/13/17/20/28/38/40/41.
This is odd because for some reason Nokia Support when I last checked stated that there were no variants of the Nokia 8 Sirocco available that supported US LTE bands. On the box label it clearly shows otherwise. Other sites and LTE band checking sites are conflicting too.
Do you know if there is a way to check band locking or available bands from a diag menu? I know of the Info menu available from the dialer, but maybe there are other hidden menus to confirm this with.
Click to expand...
Click to collapse
To follow up on this I see wifi calling and VoLTE provisioning are good. I still don't know officially if band 12 exists but the phone works fine on T-mobile.
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I have a Nokia 8 Sirocco TA-1005 "11A1NB21A05" variant and it does support LTE Band 12.

Cell Broadcast (NL-Alert)

Hello,
I'm the owner of a Huawei P20 Pro in the Netherlands on the T-Mobile network.
In the Netherlands we use a Cell Broadcasting system called NL-Alert.
Now my problem is, the broadcast the signal on channel 919 and in my Huawei settings it is set to 4371.
I have really no idea how to change this.
Thanks in advance!
Greetings from Amsterdam!
Okko
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What is your software region? Did you de-brand your phone?
I work in the Cell Broadcast industry and in many countries the broadcast channel is pre-set by regulation trough Cellular Operators. You might need to check this with T-Mobile.
I am from the netherlands also and using tmobile/tele2 and on my p20 pro it did work but last msg i got was on dec 3rd.
Received 2 nl alerts yesterday, on tmobile no issues
arty_a said:
What is your software region? Did you de-brand your phone?
I work in the Cell Broadcast industry and in many countries the broadcast channel is pre-set by regulation trough Cellular Operators. You might need to check this with T-Mobile.
Click to expand...
Click to collapse
I did not de-brand my phone or did anything to it, I'm on the European software region!
RiTCHiE007 said:
I am from the netherlands also and using tmobile/tele2 and on my p20 pro it did work but last msg i got was on dec 3rd.
Click to expand...
Click to collapse
I think 3rd of December was the last test day for NL-Alert. They do it now twice a year. Would you please be so kind to look, on which channel you are (4371 or 919).
Thanks!
Robert_1968_ said:
Received 2 nl alerts yesterday, on tmobile no issues
Click to expand...
Click to collapse
You have got the NL-Alerts for Alblasserdam! Would you please be so kind to look, on which channel you are (4371 or 919).
Thanks!
Cell broadcasting
Hi where did you find at the phone this cellbroadcasting ? I cant find it
Noorbergen said:
Hi where did you find at the phone this cellbroadcasting ? I cant find it
Click to expand...
Click to collapse
Search in English for "Emergency" and in Dutch for "Nood" in de system settings and you will probably find it!

P30 Pro not supporting VoLTE on all providers

Congstar in Germany (provider in Telekom-Network) now has VoLTE and WifiCall. Unfortunaltely, it works with almost all smartphones, BUT NOT with Huawei-Phones. My P30 Pro can't do VoLTE and WifiCall in Congstar-Network. If I put the SIM-card in other phones, it works.
There are customers from other providers that have the same problem with Huawei.
Why is that?
Yeah i searched to for some days now, and can not find any Option to activate VoLte here in Luxembourg with Tango Provider. I Phoned the Tech support and after 3 Persons i got someone that say to me that for now they only support Iphone and some Samsung Phones...
i will try to find someone with an other Provider and try with oder Sim Cards.
I think this is a very bad design choice from Huawei, to not even show the button, instead of a gray button and say it is not compatible with my Provider.
Model: VOG-L29
Build number: 10.0.0.186(C431E19R2P5)
Android 10
Security Patch 1 January 2020
But they don't do it.
adamlee2012 said:
I have p30 pro on sky mobile UK and I don't get volte yet put my SIM in S20 FE and it gets volte. Huawei need to update the software to get it working I guess.
Click to expand...
Click to collapse
I have to use the ShortcutMaker app to find the Wi-Fi calling option because it doesn't appear in the system but no option for VoLTE if a have a call and LTE at the same time that means VoLTE it's working??
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I don't had any VoLTE option in the s20 and note 20 and I asked on the telegram groups about this and yeah if you have a call and LTE at the same time that means VoLTE it's working fine, by the way how I can get in to that menu?
friscoboi said:
Congstar in Germany (provider in Telekom-Network) now has VoLTE and WifiCall. Unfortunaltely, it works with almost all smartphones, BUT NOT with Huawei-Phones. My P30 Pro can't do VoLTE and WifiCall in Congstar-Network. If I put the SIM-card in other phones, it works.
There are customers from other providers that have the same problem with Huawei.
Why is that?
Click to expand...
Click to collapse
Hi
My Three provider in UK are supporting WifiCall and working perfect on my p30 pro, my wife's p30 working perfectly either.
Regards
Working both for O2 in Germany. AFAIK those are options provisioned by your provider. If they didn't "approve" p30, it won't be enabled. Some providers have an annoying bias towards iPhone and major Samsung flagships. Had EE before for which WiFi calling was enabled but volte not.

SAMSUNG SM-G977N

Hello everyone, I seriously need help in flashing a different rom into my Korean 5G variant as 5G doesn't work, samsung pay doesn't work and it's bloated with Korean stuff and I am located in UAE, is there any solution to that? Please help me as if there is no solution I will need to sell it.
It's not about the rom itself, it's still gonna be the case even if you change it I'm afraid. The korean variant has different 5g hardware so i don't think it's going to work in places other than korea.
I'm not sure that the Korean version doesn't work in Europe! I have the s10 5g Korean version and unfortunately the 5g network doesn't work here at home in my country either and I still can't find a way to get it to work! But when I go to my neighbouring country Germany, the 5g network works normally there! I have VN Custom Rom there, so apparently the Korean version can be rolled out when it works in Germany, but I don't know the reason why it doesn't work in my country right now! Maybe it's some bad settings in the CSC, I don't know! Anyway, Germany told me in the return that the problem is in the hardware! Unless they use a system like Korea .But I can't advise how to start it, because I've been trying to start it myself for 3 months now, but still without success!!! Screenshot from Germany with 5g network !
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kvasimodo said:
I'm not sure that the Korean version doesn't work in Europe! I have the s10 5g Korean version and unfortunately the 5g network doesn't work here at home in my country either and I still can't find a way to get it to work! But when I go to my neighbouring country Germany, the 5g network works normally there! I have VN Custom Rom there, so apparently the Korean version can be rolled out when it works in Germany, but I don't know the reason why it doesn't work in my country right now! Maybe it's some bad settings in the CSC, I don't know! Anyway, Germany told me in the return that the problem is in the hardware! Unless they use a system like Korea .But I can't advise how to start it, because I've been trying to start it myself for 3 months now, but still without success!!! Screenshot from Germany with 5g network ! View attachment 5691143
Click to expand...
Click to collapse
Yeah i thought that too. Do you know a way to change the CSC on Android 12 by any chance? I can't get LTE+ in my country.
SamFW FRP tool, you can change CSC with it but it probably won't help you to 5g! I tried it and it didn't help me, and now I also tried a downgrade to A11 and also no result working 5g ! Still max 4g+

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