Develop Bugs

Change LTE bands (Unlock band 20)

Hi all
I bought a Chineese Version of the Redmi Note 8 pro. I installed now V10.4.1.0 Global Rom and it works. Last problem is that i need band 20 to have a good 4G connection.
Is it somehow possible that i can unlock and set this band ?
Kind Regards

You cant add new BANDS. China modem no support him !Re-flashing does not help!

I have 4G+ on my RN8 PRO

tze_vitamin said:
I have 4G+ on my RN8 PRO
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Yes, but you have probably the global version. I have only 4G on the Chinese one. Until I go on holiday to China, where it will be 4G+!

polfrank said:
Yes, but you have probably the global version. I have only 4G on the Chinese one. Until I go on holiday to China, where it will be 4G+!
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Yes. I have EU version. I thought that I cant have 4G+ like on Note 7 , because this RN8 pro dont have all bands..

has anyone been able to access Engineer Mode? Mediatek SoCs used to be able to enable bands through it.

ItAintMee said:
has anyone been able to access Engineer Mode? Mediatek SoCs used to be able to enable bands through it.
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This is for MTK

ItAintMee said:
has anyone been able to access Engineer Mode? Mediatek SoCs used to be able to enable bands through it.
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yes dial *#*#3646633#*#* for engineering mode

lamkanet said:
yes dial *#*#3646633#*#* for engineering mode
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可以進去 要在ADB 打指令 adb shell am start -n com.mediatek.engineermode/.EngineerMode

lamkanet said:
yes dial *#*#3646633#*#* for engineering mode
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cool, but has anyone verified if changes in BandMode enable LTE bands? The G90T has the WorldMode modem and is capable of picking up just about every LTE band used throughout the world.

ItAintMee said:
cool, but has anyone verified if changes in BandMode enable LTE bands? The G90T has the WorldMode modem and is capable of picking up just about every LTE band used throughout the world.
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Redmi NOte 8 Pro has big problems with LTE 4G + tape management. The phone does not keep the 4G + it switches and stays in 4G all the time. It's a modem management problem that does not support the double-banding needed for 4G +.
Bests Regards

elibraty said:
Redmi NOte 8 Pro has big problems with LTE 4G + tape management. The phone does not keep the 4G + it switches and stays in 4G all the time. It's a modem management problem that does not support the double-banding needed for 4G +.
Bests Regards
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Hello, could you please specify what kind ofLTE band issues this phone have? I've just ordered Global vers. with 128 GB ROM, where Band 20 (800) is the most important for me, as it is the most frequently used one in Türkiye. It doesn't exist in my Mi5, so hope the signal and speed would be better with Redmi Note 8 Pro.

anyone played around with trying to unlock more bands? pretty sure the modem has the ability to get them all, and is just software locked for one reason or another

Even I go to engineering mode. It still cannot unlock the band 7 / 20.
it seem Chinese version cannot unlock the band.
I hope some expert can do it later and share with us.

How do you use themes?
tze_vitamin said:
I have 4G+ on my RN8 PRO
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I also have the European version, though how are you able to use themes?
Not working for me.

peoeope said:
I also have the European version, though how are you able to use themes?
Not working for me.
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Normal. I set Region to my country Serbia and use themes without problems.

elibraty said:
Redmi NOte 8 Pro has big problems with LTE 4G + tape management. The phone does not keep the 4G + it switches and stays in 4G all the time. It's a modem management problem that does not support the double-banding needed for 4G +.
Bests Regards
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Click to collapse
what do you mean by "tape management"? If it's a modem management problem, then it is software related. Helio G9T's HAVE the WorldMode modem, what you're describing doesn't make sense and doesn't answer my question.
---------- Post added at 09:51 PM ---------- Previous post was at 09:49 PM ----------
q26000 said:
Even I go to engineering mode. It still cannot unlock the band 7 / 20.
it seem Chinese version cannot unlock the band.
I hope some expert can do it later and share with us.
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it's probably a modem firmware issue. the problem is the Helio G90T is only available on the RN8 Pro, so swapping modem firmware from another device isn't happening. I wonder if anyone with the Global variant has tried though.

I have Note 8 pro Global Version and band 7,20 is enable by default.

may work
Alteschwed said:
Hi all
I bought a Chineese Version of the Redmi Note 8 pro. I installed now V10.4.1.0 Global Rom and it works. Last problem is that i need band 20 to have a good 4G connection.
Is it somehow possible that i can unlock and set this band ?
Kind Regards
Click to expand...
Click to collapse
[Обсуждения] [Нужен ROOT] Разблокировка LTE Band на XIAOMI с процессором QUALCOMM
4. Скачать и установить QPST, QXDM
Restriction. I can not give a link. You can try.

My RM8pro is the global version... But in spain doesn´t get de 4g+..... The region it´s set up to spain... i´m so confuse, when i use the app to verify the band always shows b3 (1800) no b20 (800). Some help please¡¡¡¡¡¡

No 4G+ No voLTE

I purchased a Note 8 pro, and I noticed that with Vodafone Italia it does not aggregate nor the bands and I do not have the voLTE, although in the settings it is active.I obviously put the sim to check it was not a temporary disservice and in the Mi 9 I have both 4G + is the voLTE. The model is obviously European EU MIUI 11.

Activated MIMOX4 and CA in MIMO via engineering mode, this will enable LTE-Advance aka LTE+
You should check enable feature, other is depending on your network support and how much you want sacrifice mAH for max speed

ScarletVeil said:
Activated MIMOX4 and CA in MIMO via engineering mode
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how do I access the mode you described?

Dial *#*#3646633#*#*

robbie_lpl said:
Dial *#*#3646633#*#*
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Does this also work on the Global version?

yayimathrowaway said:
Does this also work on the Global version?
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Sure thing.

trxjam said:
how do I access the mode you described?
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I live in Italy too...Have you solved the problem? I'm thinking of buying this phone too, but I want to know about carrier aggregation...what have you managed to get? 2CA or 3 CA? Anyone else have better information about CA? The bands used in my country are B1 B3 B7 and B20 (B32 too but it is supported only on high-end devices).

Guarino95 said:
I live in Italy too...Have you solved the problem? I'm thinking of buying this phone too, but I want to know about carrier aggregation...what have you managed to get? 2CA or 3 CA? Anyone else have better information about CA? The bands used in my country are B1 B3 B7 and B20 (B32 too but it is supported only on high-end devices).
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I have not tried it yet, but I am disappointed being an EU model that does not aggregate bands and does not even support voLTE. everything works well on the Mi9, also an EU model.

trxjam said:
I have not tried it yet, but I am disappointed being an EU model that does not aggregate bands and does not even support voLTE. everything works well on the Mi9, also an EU model.
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Ok, please let me know if you can...I'm waiting on collecting more informations before pulling the trigger on this device.

Yo soy de chile, y el Carrier Aggregation, es posible juntando dos bandas B7 (4G)+B28 (4G) = 4G+, pero no logro que conecte kas dos bandas en simultáneo
trxjam said:
I purchased a Note 8 pro, and I noticed that with Vodafone Italia it does not aggregate nor the bands and I do not have the voLTE, although in the settings it is active.I obviously put the sim to check it was not a temporary disservice and in the Mi 9 I have both 4G + is the voLTE. The model is obviously European EU MIUI 11.
Click to expand...
Click to collapse

What application is used to check the connected bands? I activated CA and MIMO but nothing has changed. Could someone send a screenshot of what the configuration should look like in engineer mode? Thanks.

Mkriiger said:
What application is used to check the connected bands? I activated CA and MIMO but nothing has changed. Could someone send a screenshot of what the configuration should look like in engineer mode? Thanks.
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Check PM

Pm me too pls, also activated ca and mimo and no change

Bug with 4G+ is already reported to developers...
---------- Post added at 10:28 PM ---------- Previous post was at 10:27 PM ----------
cazcabral said:
Check PM
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Could you please send to me also what should I do?

hi , how to konw if it is a china version or global ? because in mine *#*#3646633#*#* don't work...

*#*#3646633#*#* works on global, i tried, dunno about other versions, try again if u still got global. after restart has some lag before accessing the menu.
its my wifes phone, i have mi 8, also, she ported the number few days ago, tried my sims in her phone and it shows option Use Volte, is checked but when i input *#*#4636#*#* it aint activated volte and wifi calls ... may its a sim problem. also looses carrier a lot, mobile data sucks ... and before the portation didnt had those problems
also, seen on mi.com version 11.0.6.0 based still on pie, after a search on google i saw (pakistan release) 11.0.2.0 android 10... wierd

i try again , and it don't work , i'm on MIUI Global 11.06.6.0 ( PGGMIXM )

4G+
trxjam said:
I purchased a Note 8 pro, and I noticed that with Vodafone Italia it does not aggregate nor the bands and I do not have the voLTE, although in the settings it is active.I obviously put the sim to check it was not a temporary disservice and in the Mi 9 I have both 4G + is the voLTE. The model is obviously European EU MIUI 11.
Click to expand...
Click to collapse
I think it has something to do with " LTE Physical Channel Configuration "
comparing my Redmi Note 7 pro, It has open and close curly bracket while my Redmi Note 8 pro. There is config written on it.
I've seen a link. Its the same issue regarding 4G+ enabled, I didn't test yet
https://forum.xda-developers.com/mi-a1/how-to/guide-enable-4g-lte-carrier-aggregation-t3894282
I hope some will come up a version for Redmi Note 8 pro

Question Oneplus 9 pro telus 5G

Hi, I have a question about telus 5G, anyone can connect telus 5G network? I don't even have 5G switch in setting.
thank you!

I have a OP9 and same issue. Data is also very slow but that could be a separate issue.

If it's available/provisioned to your SIM, I'd assume that setting your Preferred Network Type to the variant that includes 5G should allow it to be received.
I support some clients on Telus, but I'm not well versed in how they're rolling out 5G and/or what bands they're using, etc.

basilray said:
If it's available/provisioned to your SIM, I'd assume that setting your Preferred Network Type to the variant that includes 5G should allow it to be received.
I support some clients on Telus, but I'm not well versed in how they're rolling out 5G and/or what bands they're using, etc.
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Thank you tho, I called telus, they said band N66 supported but their system band uncertified device, oneplus 9 pro won't be able to connect 5G shortly, hope they will unlock it months later.

rickysidhu_ said:
I have a OP9 and same issue. Data is also very slow but that could be a separate issue.
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I called telus, it was banned by their side, won't be supported, but they also told me that for now in canada, all 5G providers are not providing 'real' 5G, just use 4G is still fast.

akm4100 said:
I called telus, it was banned by their side, won't be supported, but they also told me that for now in canada, all 5G providers are not providing 'real' 5G, just use 4G is still fast.
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What do you mean by banned? They aren't allowing 5G on OP devices?

rickysidhu_ said:
What do you mean by banned? They aren't allowing 5G on OP devices?
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for now bad answer is YES, they ban phone by brand, they told me only LG, HUAWE, Samsung, Apple etc on their wesite will be supported out of box, but other brand not guaranteed.

akm4100 said:
for now bad answer is YES, they ban phone by brand, they told me only LG, HUAWE, Samsung, Apple etc on their wesite will be supported out of box, but other brand not guaranteed.
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In other words "Buy a phone from us if you want 5G".
Sounds like a money grab from Telus.

akm4100 said:
for now bad answer is YES, they ban phone by brand, they told me only LG, HUAWE, Samsung, Apple etc on their wesite will be supported out of box, but other brand not guaranteed.
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That's unfortunate. I swear I remember my OnePlus 8 Pro being 5G compatible though. I never saw it in the status bar but it was an option inside settings. Strange that the 9 is not seeing 5G anywhere.
Maybe someone will come out with some kind of mod or tool to force 5G.

Hola
Sad situation this is. Stranger still is that I had a Xiaomi Mi 10 last year and I was able to get 5G in certain locations. And at one point Telus was the least restrictive when it came to VoLTE and WiFi Calling enablement on non-Telus branded phones.

5G is not enabled in Telus 5G-network. Here is listed 5G supported devices: https://mt.ax/0x390
To enable 5G, you can follow my blog guide: https://mt.ax/uLgc2 .

olkitu said:
5G is not enabled in Telus 5G-network. Here is listed 5G supported devices: https://mt.ax/0x390
To enable 5G, you can follow my blog guide: https://mt.ax/uLgc2 .
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thank you for the instraction, but oneplus 9 pro is not listed, hope someone will update it.

akm4100 said:
thank you for the instraction, but oneplus 9 pro is not listed, hope someone will update it.
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Instruction is about same for OnePlus 9 too.

olkitu said:
Instruction is about same for OnePlus 9 too.
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I've tried this method, confirm it dosen't work, but still thank you!

Are you able to get VoLTE or VoWifi ?

Question Question about oneplus 9 pro LE2123 - EU version

Sorry if the same question asked before, I did the research and couldn't find the answer yet.
I bought 9 pro EU version for dual sim cards, and plan to root the phone too.
Since I'll use the phone with T-Mobile, will I get wifi calling as well as 5G? What's the best image I can use? Thanks

mdf2020 said:
Sorry if the same question asked before, I did the research and couldn't find the answer yet.
I bought 9 pro EU version for dual sim cards, and plan to root the phone too.
Since I'll use the phone with T-Mobile, will I get wifi calling as well as 5G? What's the best image I can use? Thanks
Click to expand...
Click to collapse
I believe the bands are very different from the US bands used here. You'll probably have a hard time simply connecting to T-Mobile, but if you have a SIM card lying around, it wouldn't hurt to see if I'm wrong .

I wish there was a definitive answer for this by now.... I need to buy a DUAL SIM phone with CUSTOM ROMS available that works on T-MOBILE... And I can't find anything that works for all 3 requirements

LE2123 is Chinese device right?
Why is the OP mentioning that it's an EU version?

Le2123 is an EU device.

RASTAVIPER said:
LE2123 is Chinese device right?
Why is the OP mentioning that it's an EU version?
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LE2120 - China
LE2121 - India
LE2123 - EU
LE2125 - Global
LE2127 - T-Mobile

moreinternetplease said:
I wish there was a definitive answer for this by now.... I need to buy a DUAL SIM phone with CUSTOM ROMS available that works on T-MOBILE... And I can't find anything that works for all 3 requirements
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The LE2123 supports T-Mobile bands 2, 4, 5, 12, 41, and 66 on LTE which means it's only missing 71 (which unfortunately is a large portion of indoor and rural coverage) but the 5G side is pretty bleak since it's missing n71. It has T-Mobile's n41 midband but without n71, you're going to drop from 5G to LTE a lot.
It will work, it just won't be the best you can get from T-Mo. I don't believe there is a device that meets your requirements with full compatibility unless you can deal with having eSIM for one slot and get an unlocked Pixel 6/Pro.

EtherealRemnant said:
LE2120 - China
LE2121 - India
LE2123 - EU
LE2125 - Global
LE2127 - T-Mobile
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Click to collapse
I live in Europe and I am thinking to buy a LE2120 device, but inside the OS settings it shows that it's LE2123.
Does this mean that it will work fine with the bands here?

RASTAVIPER said:
I live in Europe and I am thinking to buy a LE2120 device, but inside the OS settings it shows that it's LE2123.
Does this mean that it will work fine with the bands here?
Click to expand...
Click to collapse
It sounds like it has been converted to LE2123 software but the bands aren't changed by the software.

Question Gsm Bands for Europe

Hi
I bought a 11x from India and I trying to use it in the UK. The coverage is very poor due to the bands being use by India rom. Do you think there is a way to improve it.
Thank
Dhruv

dhruvkataria said:
Hi
I bought a 11x from India and I trying to use it in the UK. The coverage is very poor due to the bands being use by India rom. Do you think there is a way to improve it.
Thank
Dhruv
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Click to collapse
The bands are picked by your sim card not the phone. If I stick in my AT&t sim it always uses band 4 for LTE. I have the Poco F3 global edition working in America and I have the international Samsung S10 lite working same thing band 4.

Then using the same sim .. in s21 and m11x why do I get two different data speed. My understanding was Mi11 was using a different band to s21.