Question Change Baseband or Modem B28a 700mhz - Xiaomi Poco F3 GT / Redmi K40 Gaming

How to enable 28 band 700mhz and other bands on Redmi K40 Gaming?
Is there any procedure to change the modem or baseband?

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Xiaomi Redmi 4X : Basebands

Is there any source to finde latest basebands for Xiaomi Redmi 4X ?
And is it possible to flash it ?
Would be interesting to get any with LTE band 20.
Just updated to new global version 8.2.9.0 from 8.2.0.2.
There is also coming a little baseband update with it.
Before is was .2.c8-00006-8940_GEN_PACK-1_V003
and now it is .2.c8-00006-8940_GEN_PACK-1_V042.
Hope that also band 20 for LTE will come once with a standard update, because the hardware should be fine for it.
Would be great for users / customers in central europe around germany esp.
How can I downgrade the baseband? My 4x only has 2g signal
I have Redmi 4X (santoni) and I b20 was working already when I bought it. Now I use Xiaomi.eu MIUI 8 (Android N 7.1.2) and everything works perfectly.
I 've bought redmi 4x Global from GearBest but I don't know if it supports B20.
The box writes:
Product Name / Product Model: Mobile Phone / MAG138
Can someone confirm if it is indeed the global version and supports B20 ?
I am not 100% sure but I read that few times:
If you got english packaging you should have the international Version with band 20....
There are 3 different Versions to buy.
You can see it eg at geekbuying:
Version 1 : Normal 4x with english and chinese Rom - no Band 20
Version 2: Global Rom 4x with Multilanguage Rom - no Band 20
Version 3: Global Version 4x with Multilanguage Rom - including Band 20
tslnox said:
I have Redmi 4X (santoni) and I b20 was working already when I bought it. Now I use Xiaomi.eu MIUI 8 (Android N 7.1.2) and everything works perfectly.
Click to expand...
Click to collapse
Go to your order at the Gearbest shop and click on the link to the phone.
If you see Global version you have B20, as you can see at the specs (4G: FDD-LTE B1/B3/B4/B5/B7/B8/B20)
Confusing part.......If you see the International version then you don't have B20 (4G: FDD-LTE B1/B3/B5/B7/B8)
unlock bans 20
any way to unlock LTE band 800mh - (20) in xiaomi redmi 4x 2g/16 chinese version????
pls help. I bought this phone but havent band 20
(bootloader is unlock and rom is rooted)
I'm following the same question:
is it possible to unlock B20 on any 4X just flashing the right international ROM or
it is necessary to buy a different version of the phone
(i.e. B20 depends on software only or on hardware difference too ???)
Elinx said:
Go to your order at the Gearbest shop and click on the link to the phone.
If you see Global version you have B20, as you can see at the specs (4G: FDD-LTE B1/B3/B4/B5/B7/B8/B20)
Confusing part.......If you see the International version then you don't have B20 (4G: FDD-LTE B1/B3/B5/B7/B8)
Click to expand...
Click to collapse
I didn't buy it from Gearbest, it was from one of Czech e-shops. I wasn't aware of the different HW versions.
I think I'm just going to get the Global version on geekbuying with 3GB RAM, $124.99 is a really good price.
as far as i know the problem is not the modem, but the antenna. it needs a different one. you can try to modify the nvram if you know how to do it. you also need B20 configuration values for that. but maybe it really have other hardware requirements.
For Band 20 (EU, Germany) definitely buy the GLOBAL VERSION, on the box it clearly states Band 20 amongst others
China doesn't use Band 20 for LTE, so it's not supported on the China market phones.
Reading from other phones threads, it's not possible to add band 20 to phones without it.
Who tried modding the phone's reserved system partitions, ended up with a non-working phone modem/radio.
So, you must check the supported bands on the phone before you buy it.
... Following.
https://forum.xda-developers.com/xiaomi-redmi-4x/development/firmwares-t3682965
look at this
Plz sign the petition if you guys want that the kernel sources must be released for redmi 4X https://www.change.org/p/xiaomi-dev...m_medium=copylink&utm_campaign=share_petition

MI 9 Global LTE (B20) / Chinese LTE (B17)

Hi,
Can somebody help me?
I have a question.
Is the LTE B20/B17 difference in hardware or software?
If I buy one Mi 9 Chinese version phone and than I put the phone a Global ROM the B20 frekvency is will working?
Sorry for my poor English.
Laszlo MATRAI
no - just no.
its not a software unlock, frequencies were locked in hardware.

Question Xiaomi Mi 11/PRO - possible to unlock 5G 2600MHz band in China model?

Hi. I'm wondering is it possible to unlock 5G 2600MHz band(n38) in China model. I'm using SIM card in Poland and my operator(Plus) provide 5G only in 2600MHz frequency.
Is there someone who succesfully unlocked this band in Mi 11 or Mi 11 PRO? Maybe change ROM to xiaomi.eu unlock this band?
s2002 said:
Hi. I'm wondering is it possible to unlock 5G 2600MHz band(n38) in China model. I'm using SIM card in Poland and my operator(Plus) provide 5G only in 2600MHz frequency.
Is there someone who succesfully unlocked this band in Mi 11 or Mi 11 PRO? Maybe change ROM to xiaomi.eu unlock this band?
Click to expand...
Click to collapse
The answer is no...there is mo hardware support....

Question My OnePlus Ace / 10R not switch on Carrier Agregation, possible switch on ?

Hello
I use my telephone in EU - Poland
My OnePlus ACE not switch Carrier Agregation in my country: Poland - ( T-Mobile, Orange )
I have root.
I know, B20 band not working in this versiow HW, but 1800, 2100 and 2600 LTE working
Possilbe on CA 2 or 3 bands in my country ?
Please help...
Hello,
Initially my smartphone was a PGKM10.
it became a CPH2411 with the updates.
Since the switch to Android 13,
I pick up 4G very badly (France / Bouygue Telecom).
I would like to know what is the file, containing the carrier Bands, in order to recover it on a compatible Mediatek Dimensity 8100 (ex: Realme Neo GT 3 Global) to copy it to the OnePlus ACE 10R 5G
THANKS

Question RN10 pro Max - Global rom on Indian variant

Hello friends,
I have redmi note 10 pro Max (108mp ) and on sweetin. I am trying to use freedom mobile sim in Canada but I am not getting any network coverage. As per kimovli website, Indian variant does not support any band which operator offers. However, when I check global version of same mobile it does supports 2 lte bands (band 4 and band 7). I have below questions-
1) Can we unlock or use band 4 and band 7 without root / custom rom.
2) will installing global rom on Indian variant solve the problem ? Will it open band 4 and band 7?
3) Any latest thread or reference to install global rom on Indian variant? I tried search option but couldnt get any.
4) I am seeing through 'Activity Launcher' - band 4 and band 7 are listed. So does it means my device does support them right?
5) So they are currently disabled by sweetin rom correct?
6) Indian variant and Global variant devices are same hardware? I know there is no Max in global but RN10 pro global vs RN10 pro Max Indian variant?
Please help me
f

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