Hi everyone. Hope someone can help, I have a redmi k20pro and cannot seem to get a 4G data signal. I put my wife's o2 sim into the phone and it gets 4G straight away, then when I put my sim back in it gets 4G for awhile then dissapears again. Can anyone maybe help or know what may be wrong ? Thanks in advance
Find out what LTE band the use
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ishaqtkr said:
Find out what LTE band the use
Sent from my Redmi K20 Pro using Tapatalk
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800mhz and 2600mhz seemingly ?
Then that's the problem, K20 Pro doesn't have the important LTE bands for Europe especially B20 and B28, Perhaps O2 have a band which K20 Pro has. You were better buying Mi 9T pro and not K20 pro which has the European bands
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ishaqtkr said:
Then that's the problem, K20 Pro doesn't have the important LTE bands for Europe especially B20 and B28, Perhaps O2 have a band which K20 Pro has. You were better buying Mi 9T pro and not K20 pro which has the European bands
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I can manually go in and select Vodafone 4G UK and it works then will eventually revert back to H+
Then maybe the signal is weak?
Sent from my Redmi K20 Pro using Tapatalk
EE is your best bet, all bands are covered in the K20 Pro.
Vodafone and 3 should be OK, they both use B20, which is missing, but they both also use other bands extensively too. It does sound like you're unlucky and in a weak signal area.
O2 will give worst coverage, as they used to only use B20. They've added other bands in major towns and cities so will get some coverage now, but you'll not get 4G once you go semi-rural and beyond.
Can confirm EE works really well, I get 4g pretty much everywhere, Voda uses band 20 so for sure you will have issues
this is because Vodafone UK mostly relies on Band 20 which the K20 Pro does not support. For the best 4G reception go with EE as they mainly use B3 and B7
Related
I looked at EU sellers and all mi 9t are k20, not k20 pro. So I looked at Chinese sellers, but no k20 pro I found supports band 20? Is that correct? Will there be mi 9t pro or something? If so - when?
evlo said:
I looked at EU sellers and all mi 9t are k20, not k20 pro. So I looked at Chinese sellers, but no k20 pro I found supports band 20? Is that correct? Will there be mi 9t pro or something? If so - when?
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The K20 and K20 Pro, so far, have only officially been released in China so only have Chinese bands and so don't have band 20. The Mi 9T is the international version of the K20 and had extra bands opened up. So far the Mi 9T Pro is only a rumour, but seems likely, though some rumours say it will be released only in Russia. There are also rumours that the K20 Pro will be released as the POCO F2, but this is less likely. Whatever happens, nobody knows when a international Pro version is going to appear.
If you want the Pro version and need band 20, then you'll need to wait and see. However, do a bit of research and see if you can live without band 20. For example, in the UK, it would be possible to use it on the EE network mostly and suffer only in rural or heavily built areas. But all other UK networks rely more heavily on band 20 and so would not be possible to use the phone.
Chinese version does not support band 20
I'm a bit confused, they are going on about the 9t Pro coming out for Global market, but on Aliexpress there is a K20 Pro with 'Global Rom'.
If i was to buy one of these would it not work in New Zealand? I'm really keen on getting this phone but not sure what to buy.
According to this, it works perfectly with my provider 2Degrees
https://www.kimovil.com/en/where-to-buy-redmi-855
Thanks
NZ Razer said:
I'm a bit confused, they are going on about the 9t Pro coming out for Global market, but on Aliexpress there is a K20 Pro with 'Global Rom'.
If i was to buy one of these would it not work in New Zealand? I'm really keen on getting this phone but not sure what to buy.
According to this, it works perfectly with my provider 2Degrees
https://www.kimovil.com/en/where-to-buy-redmi-855
Thanks
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The K20 Pro does not have global network bands. Where it's sold with a global ROM, these are unofficial global ROMs, they do not and cannot add extra lte bands.
The Mi 9T, as well as coming with an official global ROM also had a few extra lte bands unlocked. The Mi 9T Pro will do the same, when it eventually arrives.
Looking at your carrier, it uses bands 3, 7 and 28 (maybe 40 too, but could have been a different NZ carrier). The K20 Pro is missing band 28.
Band 28 is a relatively low frequency band, these can travel further and penetrate obstacles better, before losing significant signal strength and quality. Quite often the low frequency bands are used in rural areas, where masts are spread widely, or major city centres that are very heavily built up.
NZ is a very sparsely populated country, so it's possible band 28 is heavily relied on outside of the town's and cities. But this is only my slightly educated guess. I would suggest doing some more homework on how much of the 2Degree network relies on band 28.
I imagine in and around towns and cities you'll have very little issues, but that's a small percent of the country.
Assuming the Mi 9T Pro will have the same bands as the Mi 9T, then it will come with band 28
Robbo.5000 said:
The K20 Pro does not have global network bands. Where it's sold with a global ROM, these are unofficial global ROMs, they do not and cannot add extra lte bands.
The Mi 9T, as well as coming with an official global ROM also had a few extra lte bands unlocked. The Mi 9T Pro will do the same, when it eventually arrives.
Looking at your carrier, it uses bands 3, 7 and 28 (maybe 40 too, but could have been a different NZ carrier). The K20 Pro is missing band 28.
Band 28 is a relatively low frequency band, these can travel further and penetrate obstacles better, before losing significant signal strength and quality. Quite often the low frequency bands are used in rural areas, where masts are spread widely, or major city centres that are very heavily built up.
NZ is a very sparsely populated country, so it's possible band 28 is heavily relied on outside of the town's and cities. But this is only my slightly educated guess. I would suggest doing some more homework on how much of the 2Degree network relies on band 28.
I imagine in and around towns and cities you'll have very little issues, but that's a small percent of the country.
Assuming the Mi 9T Pro will have the same bands as the Mi 9T, then it will come with band 28
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It says that 2degrees doesn't use B28, only other carriers in NZ. So that would mean its safe to assume it would work?
Thanks
NZ Razer said:
It says that 2degrees doesn't use B28, only other carriers in NZ. So that would mean its safe to assume it would work?
Thanks
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I checked on Wikipedia, however I was looking at the bands for Spark by mistake. 2Degrees uses 3, 8 and 28.
https://en.wikipedia.org/wiki/List_of_LTE_networks?wprov=sfla1
Band 8 is on the K20 Pro and is also a low frequency band. So it could well be that it will work OK. However it is showing that band 8 was added to the 2Degrees network only last year, so might still be wise to see if you can find out how widespread band 8 is used on their network.
Edit:
A bit more reading. The 2Degree website FAQs confirms it uses the above 3 bands. Band 8 was previously used for their 2G network, but was freed up when they turned off 2G, which allowed them to use it for LTE. Maybe that will mean it's use is widespread.
I'm not sure about nz but it works perfectly fine here in Australia. The only band we use in Aus that it's missing is B20 which is very common. But fortunately if you're with Telstra in Aus they don't have any areas that only run on B20 so there's always something for me to connect to. I also live in a rural area.
So my advice is to check different areas all over nz to see what they support. I used a site called cellmapper to do this https://www.cellmapper.net
NZ Razer said:
I'm a bit confused, they are going on about the 9t Pro coming out for Global market, but on Aliexpress there is a K20 Pro with 'Global Rom'.
If i was to buy one of these would it not work in New Zealand? I'm really keen on getting this phone but not sure what to buy.
According to this, it works perfectly with my provider 2Degrees
https://www.kimovil.com/en/where-to-buy-redmi-855
Thanks
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Not sure about NZ, but in Australia it works. I'm with ALDI mobile which I guess is Telstra.
billybrownbear said:
I'm not sure about nz but it works perfectly fine here in Australia. The only band we use in Aus that it's missing is B20 which is very common. But fortunately if you're with Telstra in Aus they don't have any areas that only run on B20 so there's always something for me to connect to. I also live in a rural area.
So my advice is to check different areas all over nz to see what they support. I used a site called cellmapper to do this https://www.cellmapper.net
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Vladimir Lenin said:
Not sure about NZ, but in Australia it works. I'm with ALDI mobile which I guess is Telstra.
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I've gone ahead and purchased it as of an hour ago excited to get my hands on it, this makes me even more confident as your bands are the same pretty much. Can't wait!
billybrownbear said:
I'm not sure about nz but it works perfectly fine here in Australia. The only band we use in Aus that it's missing is B20 which is very common. But fortunately if you're with Telstra in Aus they don't have any areas that only run on B20 so there's always something for me to connect to. I also live in a rural area.
So my advice is to check different areas all over nz to see what they support. I used a site called cellmapper to do this https://www.cellmapper.net
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Australia use band 28, not 20.
Global version and chinese version are using same 4G bands so there won't be any problems.
Sent from my Redmi K20 Pro using Tapatalk
So I've just bought thr 256gb/8gb variant and it did say on the website that it is compatible in the UK, I'm on EE and that is a supposed supported network, just wondering if they're are any people in the UK on here who gave bought the k20 pro variant and not the mi variant and how the network coverage has been? Any feedback will be great
sofir786 said:
So I've just bought thr 256gb/8gb variant and it did say on the website that it is compatible in the UK, I'm on EE and that is a supposed supported network, just wondering if they're are any people in the UK on here who gave bought the k20 pro variant and not the mi variant and how the network coverage has been? Any feedback will be great
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I'm in South Wales with the K20 pro model and have had no issue at all!
I travel a lot with work and it's fine.
EE doesn't use the band's that are missing between the K20 pro and 9t pro so you'll be fine :good:
DaveHTC200 said:
I'm in South Wales with the K20 pro model and have had no issue at all!
I travel a lot with work and it's fine.
EE doesn't use the band's that are missing between the K20 pro and 9t pro so you'll be fine :good:
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I just got the phone and I'm getting so much better signal on ee, my s8+ struggles to get even 2 bars, I'm so impressed by this phone, I just need to get euro rom on cos on the chinese firmware there's so much crap lll
Belfast Northern Ireland getting 4g+ and very good signal
Hello friends, it's been a while since someone posed the question below. I just bought a K20 Pro (China Version) from Aliexpress and only found out about the limitations of LTE bands. I was wondering if there is now a workaround to add LTE bands with a newer version QPST or another workaround/hack? If that, could we expect something in the future or am I pretty much toast?
You are toast. Time to buy a phone that's got all the bands you need. I'm in the same spot I need to give up on these POS international phone with almost 0 LTE bands for the USA.
954wrecker said:
You are toast. Time to buy a phone that's got all the bands you need. I'm in the same spot I need to give up on these POS international phone with almost 0 LTE bands for the USA.
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I hope at some point there will be a hack, like there has been in the past. where are the geniuses on this forum ?
It's not about geniusness, it's utterly time wasting and requires a hell lot of effort which in the end doesn't guarantee it will unlock the bands, so next time get a phone with your required bands.
Sent from my Redmi K20 Pro using Tapatalk
asfazrq said:
Hello friends, it's been a while since someone posed the question below. I just bought a K20 Pro (China Version) from Aliexpress and only found out about the limitations of LTE bands. I was wondering if there is now a workaround to add LTE bands with a newer version QPST or another workaround/hack? If that, could we expect something in the future or am I pretty much toast?
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I seen people talking about how to do it on LO17 thread
SuperShad98 said:
I seen people talking about how to do it on LO17 thread
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Didn't find any mention of adding LTE bands in the LOS thread. Can you point me in the right direction with a post number or page number?
I'm referring to the comments around the end of the first page on this thread (also continues to page 2)
https://forum.xda-developers.com/k20-pro/development/rom-lineageos-17-0-t3976469
I also found this, which seems pretty much what we need
https://forum.xda-developers.com/android/apps-games/app-qualcomm-nv-calculator-adding-2g-3g-t2915649
**** these international phones I'm tired of them not having the bands we use in the USA activated. My mix 3 had every single LTE band and this K20 pro has 1 ****ty band. Why can't every phone have every band that people use in the world, is it really that hard?
954wrecker said:
**** these international phones I'm tired of them not having the bands we use in the USA activated. My mix 3 had every single LTE band and this K20 pro has 1 ****ty band. Why can't every phone have every band that people use in the world, is it really that hard?
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If you look at the OnePlus 7 Pro bands you can see that it's easy, but brands don't want to do that for profits of selling a new phone when someone moves to a different country and so on, however I am not too sure why xiaomi doesn't have all bands enabled on the global version of the phone like OnePlus, I would understand locking the CN and Indian version, but the global should have all bands enabled
Engineer code qualcomm 855
Unfortunately, even if I've bought a MI9 T pro , described with correct bands & charger (need 4G B20 & B28) ; they send me a Redmi K20 pro with chinese plug... I opened a dispute but it drags on and I'm afraid of not having a commercial solution. So If someone did find a technical one ; I'd be very glad !
I saw some old techniques on Youtube, none of them works ; nor engineering codes (#*#*...) Is there a way to know them ? Thank you !
Good luck, but it's almost improbable, Even Pocophone failed.
Sent from my Redmi K20 Pro using Tapatalk
network signal guru which is available in play store with that can change bands of LTE but root access is must
leothomas2580 said:
network signal guru which is available in play store with that can change bands of LTE but root access is must
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It won't work, if it was that easy it would be miracles, have you tried?
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ishaqtkr said:
It won't work, if it was that easy it would be miracles, have you tried?
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Right now I'm using custom rom(evolution x) on my Redmi k20 pro/mi9 t pro didn't tried on Chinese rom
but the bands works using network signal guru
leothomas2580 said:
Right now I'm using custom rom(evolution x) on my Redmi k20 pro/mi9 t pro didn't tried on Chinese rom
but the bands works using network signal guru
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This from the Network Signal Guru FAQs
Can you changed the band capacities of my cell phone. My cell phones are from other countries and the band capabilities are not so good, and I want more band support. Could NSG do that?
NSG cannot provide this kind of feature and we don't change the band capabilities. It's different among different phones, so it's dangerous and once failed, you will lose all of the band capabilities of certain radio technology. And it's very difficult to recover.
So, no it's not possible to unlock the bands.
Robbo.5000 said:
This from the Network Signal Guru FAQs
Can you changed the band capacities of my cell phone. My cell phones are from other countries and the band capabilities are not so good, and I want more band support. Could NSG do that?
NSG cannot provide this kind of feature and we don't change the band capabilities. It's different among different phones, so it's dangerous and once failed, you will lose all of the band capabilities of certain radio technology. And it's very difficult to recover.
So, no it's not possible to unlock the bands.
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I knew it, if it was as easy as using an app everyone would import phones from China and modify lol
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ishaqtkr said:
I knew it, if it was as easy as using an app everyone would import phones from China and modify lol
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Okay thank you
It's likely the bands are "hardware locked".
So depending on the region of the device various bands will be enabled or disabled. Every region of the device might well have the same modem - and that modem might support all the bands you want - but they won't work and there'll be no way of getting them to work as it'll be on a hardware-level.
It's why when you flash a Global ROM to a Chinese handset bands don't appear and vice versa. Both region ROMs will have their respective modern firmware but that doesn't change what bands you get - which would imply its literally hard-coded into the modem itself.
What I've read on the pocophone implies the band programming is locked, read-only, unmodifiable.
every site i check says mi phone can use lte in my country but i cant connect to it on my phone .... what do i do??
I am think about buying Redmi K30 pro and use it in the US. I was told I should wait for the international version because of LTE bands. But I am thinking if this kind of unlocking mechanism can be done on the predecessor, I don't have to wait. Thanks!!!
It's not possible to unlock LTE bands on K20 Pro like it's not possible to do it in any newer phone.