yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi 9 Guides, News, & Discussion] bilal91:
i already have 4g+ on my phone without doing any of that...am i missin something?
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
No for sure

No, NV files doesn't related to ROM!
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
This guide is for Chinese packages that don't aggregate bands in other countries !
[Xiaomi Mi 9 Guides, News, & Discussion] mangaba:
One question:

This procedure unlock BAND 28 in chinese phones too?

Because I buy a chinese one (in a Xiami store in Shangai) and use it in Brazil. When I was in São Paulo I already saw 4G+. but I don´t know if it was using BAND 28.

Thanks
[Xiaomi Mi 9 Guides, News, & Discussion] SpeedoFST:
thanks for your work, I did everything as instructed and BOOM... no 4G+ :(
[Xiaomi Mi 9 Guides, News, & Discussion] Jehonan:
I believe that this is carrier dependent also, so if your carrier doesn't support aggregation, then no use about all this process!

Let's use my example, i have global version of this phone and all of this is natively supported and when i am within reach of my carrier station then i have 4G+ sign, but when is other way around then there is no 4G+ icon, no carrier aggregation!
[Xiaomi Mi 9 Guides, News, & Discussion] SpeedoFST:
If I put my sim card in my old Samsung s8 I have full range 4G+, on Mi9 full range 4G only. So I'm sure it's the Mi9's fault.
[Xiaomi Mi 9 Guides, News, & Discussion] omgomg:
I am using xiaomi.eu and I get 4g+ on mine. I suppose I don't have to do this, right.
[Xiaomi Mi 9 Guides, News, & Discussion] baszu:
Can this support b20 on chinese device model?
[Xiaomi Mi 9 Guides, News, & Discussion] Jehonan:
Excellent!

Then You know 100% that there is a "fault" on Mi 9 side but again, if You have Global-EEA Version and not Chinese then this is strange because all this bands should be already unlocked-enabled in Global-EEA version of this device.

Now it's cross my mind, what type of ROM is on Your device?!

Is it Global ROM or EEA ROM?!

I believe that I heave red on some forum that if You are in EEA region then it's better to flash this ROM on device because there is also some modem drivers discrepancy between Global and EEA version of the ROM (if You compare sizes of corresponding files in those two ROM's, You will see that they are different also).

Now, maybe I'm wrong but I also have this EEA ROM on my device and just as i have said, at me this carrier aggregation is working as it should.
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
:)

dude, at the first line of the thread i said that it is for china packages used in a country with aggregation support!

You are right, your carrier doesn't support aggregation!
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
U mean for Chinese version of mi9 right?

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
Yes, The Chinese packages have limited bands!
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
i cant see my phone in qpst , i cant continue, soime help please
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
I was in the part of the back up but my device doesn't appear in the list, I'm using w10 pro, version 1903

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 Guides, News, & Discussion] MeltdownSpectre:
Put your SIM card in the S8+, turn on mobile data and wait till you connect to 4G+, then open the dialer and dial *#0011#, press STACK1 if the SIM is in slot 1, and STACK2 if in slot 2.

You'll get to a ServiceMode screen, take a screenshot of that and post it here. The phone may be using bands that the Mi9 doesn't support.
[Xiaomi Mi 9 Guides, News, & Discussion] fafuzito:
partially works

I have a Mi 9 Chinese, 6/128. I did all the procedures correctly, and it shows that I have 4G + on the screen, but when I try to use some application / browser, there is no connection. Any suggestions what might be wrong?
[Xiaomi Mi 9 Guides, News, & Discussion] badaas:
Check APN settings
[Xiaomi Mi 9 Guides, News, & Discussion] Adnan008:
Can we use diag port option to enable volte and vowifi with pdc like in oneplus phones?
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
My PC doesn't recognize the prot for backup, I have w10 pro 1903

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
Install all drivers again!
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
Delete all APNs and write them again!
[Xiaomi Mi 9 Guides, News, & Discussion] flxas:
Can this also work in mi8?
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
I reinstalled my windows and it not recognize the phone, what driver did u use ?

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
No!

No, Not at all, This file is for SD855 not SD845!
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
Dude, I think you haven't disabled driver signature enforcement!

Go through

Click the Start Start menu and select Settings.

Click Update and Security.

Click on Recovery.

Click Restart now under Advanced Startup.

Click Troubleshoot.

Click Advanced options.

Click Startup Settings.

Click on Restart.

On the Startup Settings screen press 7 or F7 to disable driver signature enforcement.

Your computer will restart and you will be able to install non-digitally signed drivers. If you restart your computer again the driver signature enforcement will be re-enabled.

.

.

then check the device manager and QPST to see the driver works or not!

For drivers, just dwnload the last version of MiFlash and install it, it will install all the drivers you need!
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
Thanks man

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
Doesn't work, I will try in windows 7 but anyone else, tips?

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 Guides, News, & Discussion] fafuzito:
Unfortunately for me it didn't work. Like I said, 4G + appears on my phone screen, but the apps don't connect and I can't even use the browser because it says I'm not connected. Already tried to fix APN settings, checked if I had LTE on, but nothing worked. The internet only works if I have H+ on the screen. And now I have another problem: I downloaded my original parameters before switching to the modified ones, but now when resetting my original parameters and restarting, the phone remains without a network signal. The IMEI numbers are correct, the settings are ok, but I still have no network signal. Does anyone know how to fix this, or have the original .xqcn file to send me? Thanks.
[Xiaomi Mi 9 Guides, News, & Discussion] flxas:
. Ok , nice to justify. Can the same process work in mi8 with other file or is it a matter of the hardware that is limiting the 4g+ feature?
[Xiaomi Mi 9 Guides, News, & Discussion] jeremyterabyte:
Works great. Thanks!
[Xiaomi Mi 9 Guides, News, & Discussion] mxtuu222:
Thanks a lot for the guide, I was able to achieve full CA support!
[Xiaomi Mi 9 Guides, News, & Discussion] mangaba:
Friends,

Is your MI9 chinese or global ?

Thanks
[Xiaomi Mi 9 Guides, News, & Discussion] jeremyterabyte:
Mi 9 China, 8gb / 256 GB model.
[Xiaomi Mi 9 Guides, News, & Discussion] iGears88:
With windows 10 pro, doesn't work, I will try on w7, who complete the tuto, what version of Windows are u using ?

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 Guides, News, & Discussion] nahsha:
I also have the Chinese version 6/128. After the change it seems like sometimes it takes awhile to "connect". Maybe it's trying to use bands it doesn't have..
[Xiaomi Mi 9 Guides, News, & Discussion] nahsha:
Hey guys, I tried restoring the backup, but I'm not getting any reception..any idea?
[Xiaomi Mi 9 Guides, News, & Discussion] nahsha:
Did you get your original settings to work? I have the same issue..no network.
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
Go to Phone Network Information through *#*#4636#*#* and change the default mode to different like WCDMA/GSM, then LTE only Then ... and after coming back to UTMS/LTE Auto the problem must get solved!

After that, if there was any problems, just go to TWRP and wipe cache and dalvik cashe! If didn't help, try to flash a Global ROM and see that the problem solved or not!
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
Haven't you backed up your QCN files before flashing the new one?
[Xiaomi Mi 9 Guides, News, & Discussion] nahsha:
I did backup the xqcn file (1.5mb), which I tried restoring. By the way, nothing happens when I try *#*#4636#*#* from dialpad.
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
that command will get you to the Testing area, it seems your ROM have some problems and bugs, try to flash the edited QCN and then flash a clean Global ROM and then test it!( after restoring finished, wait for 10 second and then unplug the phone)

For going to phone information in situation that the the command didn't work go through setting/about phone or all spec/internal memory and click 6 time on Internal memory to go to testing area
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
dude, you typed Wrong

*#*#4636 #*#*
[Xiaomi Mi 9 Guides, News, & Discussion] nahsha:
Don't think I did, I used that code a million times. I'm on MIUI 11
[Xiaomi Mi 9 Guides, News, & Discussion] fafuzito:
Yes, problem "no network" solved. After reinstalling my original .xcqn, reset modemst1 and modemst2 and everything went back to normal.
[Xiaomi Mi 9 Guides, News, & Discussion] nahsha:
How did you reset modemst1/2? did you back them up prior to flashing .xcqn? (I backed it up, just not the modem files/partitions)

Thanks!
[Xiaomi Mi 9 Guides, News, & Discussion] fafuzito:
I just only flash my original .xcqn and after reset the modems partitions (without back up of them).

-Boot into TWRP recovery.

-From TWRP’s main screen, select Advanced » then Terminal.

-Type the following commands in terminal (one by one):

dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst1

dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst2

-Reboot device.
[Xiaomi Mi 9 Guides, News, & Discussion] portfolio:
after restoring my original xcqn-file and resetting modemst1 and modemst2 the phone now doesn`t recognize the SIMcard anymore … saying, no SIM installed,

anybody got any idea? I also installed ROM again, wiping cache/dalvik, no success

THX!
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
It seems that the reset process has gotten error

Take out your Simcards

restore your original QCN file again

go to bootloader(Fastboot)

then use these commands

fastboot erase modemst1

fastboot erase modemst2

fastboot reboot

If the problem exist, reflash xqcn file again, go to twrp and wipe cache and dalvik and power off, insert sim cards and power on the phone
[Xiaomi Mi 9 Guides, News, & Discussion] waingro808:
Is Band 17 Unlocked? I need that in US.
[Xiaomi Mi 9 Guides, News, & Discussion] denzel09:
can you make this guide work also on mi mix 3 with 845?
[Xiaomi Mi 9 Guides, News, & Discussion] celulari:
First of all, thank you very much for the guide. A few weeks ago I bought the Xiaomi Mi 9 Lite, global version. Both sim support 4g + on my Samsung Galaxy S10, but the same does not happen in my 9 lite. There will be some way to make this mod? Thanks
[Xiaomi Mi 9 Guides, News, & Discussion] berkens:
Here info from another post:

"Just wanted to share my experience with WiFi Calling. I am in the US on T-Mobile and WiFi calling has been working for me surprisingly. VoLTE has also been working wonderfully. I've tested this on a Global Mi 9 running Stock and the Xiaomi.eu rom.

Enter these codes into the Dialer to enable the options in Settings. (Settings < SIM Cards & mobile networks < Sim Card Settings < VoLTE Enabled/Make Calls using WLAN)

VoLTE *#*#86583#*#*

VoWIFI *#*#869434#*#* "

These 2 codes toggle the option on/off.

Make it both Disabled!

Then you see the options in the Sim settings
[Xiaomi Mi 9 Guides, News, & Discussion] berkens:
Anybody who knows this also enables the band B20 in the K20 pro?
[Xiaomi Mi 9 Guides, News, & Discussion] amir.movafagh:
will this work with k20 pro ?
[Xiaomi Mi 9 Guides, News, & Discussion] tavocabe:
I also want to know this as I have one but would like to have access to band 20
[Xiaomi Mi 9 Guides, News, & Discussion] Masih_zh:
hi, this will work on K20 Pro too ?or just mi 9 china ?
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
This is for Mi 9! Do Not Test it on other models!
[Xiaomi Mi 9 Guides, News, & Discussion] Masih_zh:
can you find a way for other snap 855 devices like K20 Pro ?
[Xiaomi Mi 9 Guides, News, & Discussion] metalgold2301:
hi

please add Enable 4G+/4.5G Carrier Aggregation for mi a3 model in band 3 and 7

i uploaded xqcn file

thanks
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
For any device, you need a Global QCN to be imported, edited and then flash it to the China devices! As far as i know, editing qcn and enable the B3 and B7 aggregation won't work for most new model as i tested myself!
[Xiaomi Mi 9 Guides, News, & Discussion] metalgold2301:
thanks for reply

my device is global also

but in my country (iran) band 3 and 7 aggregation in other device like huawei or samsung

but xiaomi devices not aggregation this bands.
[Xiaomi Mi 9 Guides, News, & Discussion] lucisz:
it's didn't work for me, before doing this I've already have 4g+ in B1 and B3 band,but can't find or use B20 and B28, after doing this, B20 and B28 are appeared,i try to lock band in B20 or B28 then there is no signal directly, i'm sure that there have B20 or B28 around me (in France), so i think it's just let the option B20 or B28 appeares but still cant work.
[Xiaomi Mi 9 Guides, News, & Discussion] lucisz:
Hello, I have a question, i've already backup before unlock the lte band, but after unlock the band, i cant connect to QPST, and also cant restore the backup. i think the drive is ok, and QPST still can can recognize thers is a phone, but cant get detailed information about the phone or connect with it. There are some screenshots

Hope your reply, thanks!
[Xiaomi Mi 9 Guides, News, & Discussion] head_djmusic:
Wipe Cache and dalvik, restart, go to diag mode and the phone must get recognized !
[Xiaomi Mi 9 Guides, News, & Discussion] invisiblewave:
Will this work on the Mi9 Pro?
[Xiaomi Mi 9 Guides, News, & Discussion] zgfg:
OP post #1 instructions are for Chinese firmware.

If you already have a correct ROM (eg, Global or EU in Europe), it should work out-of-the-box

Successfully tested 4G+ LTE Carrier Aggregation (Primary cell b3, Serving cells b1, b20 = 20+20+15 MHz bands aggregated) with Mi 9T, QFJEUXM 11.0.5 (no QPST modding needed)

https://xdaforums.com/showpost.php?p=82708207&postcount=55
[Xiaomi Mi 9 Guides, News, & Discussion] invisiblewave:
Thanks. There's no official global firmware for the Mi 9 Pro (crux), it's China only. I'm running the xiaomi.eu rom, but that was flashed over the official Chinese firmware.
[Xiaomi Mi 9 Guides, News, & Discussion] invisiblewave:
For anybody else wondering about the Mi 9 Pro, after a few days of investigation my conclusion is that it won't work. We can't use an edited qcn file from other Mi9 variants because they don't have a 5G modem, and there's no global firmware for the Pro from which to copy it to the Chinese devices. If anyone knows any different, please speak up!
[Xiaomi Mi 9 Guides, News, & Discussion] Toujour3:
Hello world.

Sorry for my English, but I think you will understand me.

I need try this for k20 pro. Understood from instruction, I need NV backup from global mi 9t pro, replace my imeis and mac and flash it. Right?
[Xiaomi Mi 9 Guides, News, & Discussion] roverto:
hi

please add Enable 4G+/4.5G Carrier Aggregation for mi mi9 model in band 3 and 8
[MTCD  Android Head Units Q&A] wurst_wasser:
Hey

I have got the following unit installed:

Modellnummer: A-MEDIA AUTO (1024x600)

Android-Version: 6.0.1.

Sicherheitspatch: 1. Juni 2016

Baseband: SF3GR_M-26.3_cpeg_rk-r2p_bc2-20160629_111639

Kernel: 3.14.0x rocky@hctr930 #9

Build: sofia3gr_car_64-userdebug 6.0.1 MMB29M eng.hct.20170515.155328 releas-keys

MCU-Version: MTCD_LM_v2.441

CPU: Genuine Intel(R) CPU @1.2Ghz (x4)

Speicher 1924 MB

I bought it second hand and according to the seller it is a erisin 3811, which actually should be based on a PX30 and not a Sofia.

But nevermind.

Whenever I connect my Android phone to this device using the B2DP-App, the sound stopps for miliseconds every half minute... Bluetooth sound when calling is flawless, it's just music or podcasts via this app.

Any idea how to improve this?

Thanks!
[Android Q&A, Help & Troubleshooting] Nolofj:
I tried to flash the twrp Recovery on my J7 2017 or SM-J730F.

First i did everything as in the guide so i unticked auto reboot on odin and after it finished it didnt restart so i tried to get it in recovery like in the guide and nothing happened, it just stuck there i couldnt turn it off or do anything so i waited until the battery was empty and tried a new run but this time with auto reset. After it finished it restarted but it wouldnt want to go in recovery and always tried to get into normal android but it only showed the samsung screen turned off showed the samsung screen and so on. The only mode i couldnt into was the download mode. In it i tried to flash and other recovery that showed the same result and i tried to flash the original firmware. but Firmware flashing didnt even got trough and now i dont know what to do to get the phone to work again.

Please help me I just cant get anything on the Internet to this.
[Android Q&A, Help & Troubleshooting] PoochyX:
You shouldn't of tried to modify the phone in the first place and stood with stock.... First off you don't put auto reboot after flashing twrp you have that option off so you can reset the phone and hold the recovery sequence so it boot in recovery and twrp patches to your recovery partion

([emoji3590]09-09-18[emoji3590])
[Android Q&A, Help & Troubleshooting] Nolofj:
I had it first in not auto reset but i couldnt get into the recovery after odin finished.
[Android Q&A, Help & Troubleshooting] PoochyX:
I'm assuming this a phone without a removal able battery so you should of reset via the little reset button in the hole and hold the twrp combination while it doing it so you would of caught it

([emoji3590]09-09-18[emoji3590])
[Android Q&A, Help & Troubleshooting] Nolofj:
I nevery heard of a reset button on any newer smartphone. Do you know where exactly it should be ?
[Android Q&A, Help & Troubleshooting] PoochyX:
No but there is always one on phones that don't have removal able battery for situations when the phone freezes out.... Google your phones emergency reset button it's usually a little hole in your phone where you put a pin in to trigger a automatic reset

([emoji3590]09-09-18[emoji3590])
[Android Q&A, Help & Troubleshooting] Nolofj:
I cant find anything on the internet related to a button or a hole for my phone. I just get tons of websites that do a reset over the recovery that i cant get in.
[Android Q&A, Help & Troubleshooting] PoochyX:
Bro if your phone doesn't have a removeable battery there has to be a way to auto reset

([emoji3590]09-09-18[emoji3590])
[Upgrading, Modifying and Unlocking] #Nethunter:
Hi all

I have unlock and install kalinethunter on my nexus 6 MT100

Everythings seems to work correctly instead of my external speaker.

cat /proc/asound/cards
0 [apq8084taikotfa]: apq8084-taiko-t - apq8084-taiko-tfa9890_stereo_co
apq8084-taiko-tfa9890_stereo_codec-snd-card
cat /proc/asound/pcm
List is long but everything is at
playback 1 : capture 1

I'm searching for activate speaker...but in arm i don't know where start from here.

dmesg | grep audio

The return is from each line
stream or effect inactive 3
Could not get audio client for session -1

Only a headphone permit me to hear my interlocutor.

Thanks for help
[HTC Tornado] gilandz:
Hello, somebody knows if exist WM6 ROM with french MUI?
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] Spankle:
This is what I was afraid of when I bought this phone for my wife.

Her front camera is no longer popping up when it should.

She has tried restarting the device to no avail.

Is anybody aware of any bug or software issue that might be causing it to not pop up, or do you think it's simply a hardware failure?

:(
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] log1321:
Pop up camera just stop working or cell was dropped or something else that could affect pop up camera? If not, my suggestion it's claim warranty. I had this cell since 6 weeks ago and no issues with pop up camera but notice I'm not use pop up camera too much/often.
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] Kidence:
Start front camera in app and try little to press down camera....maybe this help...
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] SrKeso:
did you updated to android 10? im having the same issue now that im trying the miui 11 beta

---------- Post added at 07:15 PM ---------- Previous post was at 06:56 PM ----------

Ok, so for appearently flashing the 75hz screen refresh rate mod or the the 66hz (as is the only one working with miui 11 android 10 rom) breaks the pop up camera dont ask me why but i reflashed the rom and then flashed one by one the mods i use and this is the one.

So maybe you have this mod installed and is the one messing with the camera.

Cheers
[ASUS ROG Phone II Questions & Answers] qwertymk16i:
<Mod edit>
[ASUS ROG Phone II Questions & Answers] qwertymk16i:
<Mod edit>

Happy Gaming!
[ASUS ROG Phone II Questions & Answers] Adnightmare:
hii
[ASUS ROG Phone II Questions & Answers] bhairav0910:
hi

<Mod edit>

hi can i get it or i am too late .
[Google Pixel 3 XL Questions & Answers] dirtyreturn:
Out of the blue, my t-mobile data connection refuses to be co;nected.

I've tried four things. Reflash the stock rom, reflash the kernel, fastboot an updated baseband/radio.img, and reset network preferences.

What I have yet to try, is factory reset which I'm hoping not to have to do.

So, I'm just hoping this has possi ly happened to a pixel 3xl user who has found a solution without having to perform a reset.

Any help would be appreciated. Thanks for reading

P. S. I would provide more information, I just have no clue.
[Google Pixel 3 XL Questions & Answers] sliding_billy:
Network settings reset maybe. settings>reset>network settings reset>reset settings>pin>reset settings

Been a while (years), but if I remember correctly it may delete your bluetooth and wireless settings and devices.
[Google Pixel 3 XL Questions & Answers] parakleet:
Have you tried flipping on a VPN?

You have data on Wifi right?

Have you tried changing your DNS settings?
[Google Pixel 3 XL Questions & Answers] mgp53:
Try removing your sim and replacing.
[Google Pixel 3 XL Questions & Answers] dirtyreturn:
Thanks, problem solved. MOD please close.
[Google Pixel 3 XL Questions & Answers] sliding_billy:
What was the solution?
[Google Pixel 3 XL Questions & Answers] Jiggs82:
Delete
[Google Pixel 3 XL Questions & Answers] dirtyreturn:
I didn't find one exactly I don't think. You're going to think I'm an idiot but I downloaded connection stabilizer from the play store.

Like, when my issue (stock 9) occurs the late and bars are still visible but it has an x as well. This app has helped refresh , I guess, the connection.

And removing the Sim had helped.
[Google Pixel 3 XL Questions & Answers] sliding_billy:
Interesting, but whatever it takes. You could always disable the app and reboot to see if it makes any difference with no other changes.
[Google Pixel 3 XL Questions & Answers] dirtyreturn:
I like that idea. I also have lte discovery from the play store which I was using to reset the data connection previous to installing the other app and, again, IDK, as I've never experienced a data issue like this before.

Anyway, thanks for taking an interest.
[Google Pixel 3 XL Questions & Answers] sliding_billy:
Let me know how it goes.