Develop Bugs

[ Open Letter to VIVO ] Enable FM Radio - Google Pay - Bootloader Unlock

Dear VIVO engineers ,
as you know many of us got Chinese variant of VIVO NEX 3, because we think generally is the best variant cause a lot of reasons.
Now we have problems to use device in normal life because :
1) Google Pay is not licensed so we can't add cards to pay in stores
2) FM Radio is disabled ( meanwhile you have enabled and supported on Malaysian variant of device )
3) Bootloader is heavy closed. We can't root device and we can't fix by ourself Google Pay problem
Please VIVO,
follow your customer suggestions .

wolfgart said:
Dear VIVO engineers ,
as you know many of us got Chinese variant of VIVO NEX 3, because we think generally is the best variant cause a lot of reasons.
Now we have problems to use device in normal life because :
1) Google Pay is not licensed so we can't add cards to pay in stores
2) FM Radio is disabled ( meanwhile you have enabled and supported on Malaysian variant of device )
3) Bootloader is heavy closed. We can't root device and we can't fix by ourself Google Pay problem
Please VIVO,
follow your customer suggestions .
Click to expand...
Click to collapse
Please unlock the bootloader for vivo z1 pro

Nice you sent it to Vivo. Hopefully they will pay attention. At least the bootloader unlocking.

We should all send it.

It is usless they will never add this feature . It is not made for global use ... it is for China market.

For anyone who has a Fitbit -> FitbitPay works. I use it as a workaround for now.

Did this work with the original Vivo Nex?

Maybe magisk can be installed somehow? Fitbit is for smartwatch so another hardware.

I wrote an email to VIVO according firmware flash from 1924A to 1924F.(global).

I can root in my device in vivo y15

ajay.king said:
I can root in my device in vivo y17/QUOTE]
Click to expand...
Click to collapse

gregor1230 said:
I wrote an email to VIVO according firmware flash from 1924A to 1924F.(global).
Click to expand...
Click to collapse
Have they answered yet? Is it possible to flash global rom to a Nex 3 that has Chinese rom?

Saya ingin membuka bootloader please

Vivo answered to my email. We cannot flash global rom to Chinese rom phone.
Dear vivo user,
Thanks so much for your email and we are sorry for the delay. In order to satisfy the needs of our users from different regions, some of our phones have two versions( Chinese version and Global version). The Chinese version is designed for Chinese Mainland users and has made some changes to meet the Chinese market, which differs much from the global version. Currently, the phones with the Chinese version cannot install the Global version. Your understanding will be highly appreciated.

gregor1230 said:
I wrote an email to VIVO according firmware flash from 1924A to 1924F.(global).
Click to expand...
Click to collapse
Thanks

Unlock BAND 20 LTE

Hello folks, i need your help to unlock the band 20 of redmi K30 5G. Currently i have Chinese rom installed .
Is a way to unlock the band 20 ? I saw new Xiaomi MI 10, if you change the rom will enable the band 20 . ( in that case is a software limitation)
In our case ?
Thank you !

Nobody can help me ?

Have you tried this method from xda /crossdevice-dev/sony/thread-progress-please-leave-im-updating-t2871269

casimir120 said:
Have you tried this method from xda /crossdevice-dev/sony/thread-progress-please-leave-im-updating-t2871269
Click to expand...
Click to collapse
i dident tried . i dont think to work, is an old version of snapdragon

Let us know if you're making progress... Trying the same thing with a K30 pro.

Any update? Id love to own this phone but need band 20 here in switzerland. Its the only one deactivated that i would need

People tried to unlock bands at the poco F1, but, there was no success, And people tried a lot

I found the possible files causing the restrictions on LTE and 5G bands, but I have no idea how to modify them to unlock bands.
In the policyman folder, the files:
- china_msim_restrictions.xml
- disable_nsa_mmwave_bands.xml
- lte_feature_restrictions.xml
regards
Excuse my writing (I am using Google Translate)

Arielp211 said:
I found the possible files causing the restrictions on LTE and 5G bands, but I have no idea how to modify them to unlock bands.
In the policyman folder, the files:
- china_msim_restrictions.xml
- disable_nsa_mmwave_bands.xml
- lte_feature_restrictions.xml
regards
Excuse my writing (I am using Google Translate)
Click to expand...
Click to collapse
These files doesn't unlock B20 - this is hardware limitation. Bands are configured to nvitems but on 5G phones many things changed.
But could you please share to me your modem log file so i can list all hardware supported 4G bands to my cacombos.com website? I have here instruction how to get log file: https://mt-tech.fi/en/how-to-get-4g...phone/#Method_for_Qualcomm_Devices_after_2020 and you can send it to: https://cacombos.com/contribute . This help me understand what bands & combinations this device support.

costi90 said:
Hello folks, i need your help to unlock the band 20 of redmi K30 5G. Currently i have Chinese rom installed .
Is a way to unlock the band 20 ? I saw new Xiaomi MI 10, if you change the rom will enable the band 20 . ( in that case is a software limitation)
In our case ?
Thank you !
Click to expand...
Click to collapse
If you change any ROMs from global to China and vice versa won't unlock the bands. This is locked down with hardware, not software. Older Qualcomm devices could unlock bands with Qualcomm tools/programs. This isn't the case with newer models.

Question OnePlus 9 Pro- Suppress all bands beside 5G and Connecting with QXDM

Hello Friends,
Wondering if anyone have any procedure or tried to unlock / root OnePlus 9 Pro to connect with Qualcomm QXDM to suppress all frequency bands beside 5G .. ie only like to setup that phone in 5G SA mode.... Thank you in advance.....
PS: This is just for some lab testing ...... and i have purchased an unlocked phone and it is not attach to any carrier.....

Can't you just select NR Only in 4636 menu?

craznazn said:
Can't you just select NR Only in 4636 menu?
Click to expand...
Click to collapse
Thank you .... and yes you can ...somehow i missed it .. Thank you again for your suggestion....

Question I bought Chinese version of IQOO9 and want to switch to Funtouch OS

HI friends, I have made a mistake buying iqoo9 from Aliexpress without reading the OS description. I read somewhere that vivo is supposed to be offering the option for owners to switch to funtouch is that true will I be able to do that or was that just a rumor?
Thanks in advance

Hi guys,
same situation for me. I have bought the IQOO 9 pro PD2172A and I would try to flash PD2172F ROM but I don't want to brick my phone.
I hope there is someone expert who can help.
Thank you

Same situation for me!

Bad news guys I contacted Vivo. Switching is not possible as the Chinese version is made for Chinese audience and won't let you flash funtouch. At this point all I can hope for is to be at least able to access USB debugging and remove vivos bloatware.

moe990 said:
Bad news guys I contacted Vivo. Switching is not possible as the Chinese version is made for Chinese audience and won't let you flash funtouch. At this point all I can hope for is to be at least able to access USB debugging and remove vivos bloatware.
Click to expand...
Click to collapse
Hi mate, can you post us the link please? I would try to convince them to give us the possibility to switch to Global rom. At the end we have spent a lot of money for this flagship and if they don't want to lose customers in the future, they should make us happy in someway.

So there's no single way for us now to be able to flash something different onto it? Nobody tried?

the main problem is to find the original ROM so in case of problems you can revert back.

Hi there,
I've got 9 Pro version and I am interested too. is it possible to unlock bootloader? Developer options are very limited - most of functions are grayed.

PanNet said:
Hi there,
I've got 9 Pro version and I am interested too. is it possible to unlock bootloader? Developer options are very limited - most of functions are grayed.
Click to expand...
Click to collapse
Unfortunately you can't. They won't even let you use root account to use adb debugging mode to remove their crap bloatware. Unfortunate that an incredible phone like this with amazing specs is locked. I would be happy if they let me at least use adb

Do you think it's possibile at least to flash the Global version over the China version?

warrio said:
Do you think it's possibile at least to flash the Global version over the China version?
Click to expand...
Click to collapse
No the Chinese phone are branded with different model code even if we assume you manage to get to bootloader which they already have locked and when I asked them they said no. We don't allow bootloader access for phones made for Chinese markets

Traying to find the correct stock software to the Chinese version of Iqoo 9 Pro I found instead software to F model not A. I didn't know the F model does exist at all. Recently Vivo released this model (9 Pro) to India market but I am not convinced it is V2172F. Possibly this software could be downloaded to ours 9 Proses after bootloader unlocked. Am I right?
Vivo Iqoo 9 Pro PD2172F Firmware Flash File (Stock ROM Guide)
If you're a Vivo Iqoo 9 Pro PD2172F user and looking for the official Stock Firmware to download, you can follow this full guide below. Here you can check
www.getdroidtips.com
Regards'

PanNet said:
Traying to find the correct stock software to the Chinese version of Iqoo 9 Pro I found instead software to F model not A. I didn't know the F model does exist at all. Recently Vivo released this model (9 Pro) to India market but I am not convinced it is V2172F. Possibly this software could be downloaded to ours 9 Proses after bootloader unlocked. Am I right?
Vivo Iqoo 9 Pro PD2172F Firmware Flash File (Stock ROM Guide)
If you're a Vivo Iqoo 9 Pro PD2172F user and looking for the official Stock Firmware to download, you can follow this full guide below. Here you can check
www.getdroidtips.com
Regards'
Click to expand...
Click to collapse
I don't know about the Indian version I looked for the model number but don't seem to find it. Either way there is no point of that. I already tried to do extract the boot file and attached it to magisk here is the catch you can't run that without bootloader unlocked

If you looking for chiness file, you may find on PAID website, such as ROMDevelopers ETC

Quick update I managed to remove a lot of vivos bloatware, not all but most of them using adb appcontrol just wanted to leave this here in case someone may find use of this info

Hi Moe990
I am doing the same and building a list of what is safe to remove.
A few weeks ago I removed an APP that disabled my NFC (Google Pay) - I had to factory reset my phone
Have you managed to remove :
- Music and Video players
- Phone / SMS / Contact APP
Thanks

Nah not everything is removable. But I'm glad with what I removed so far

I noticed I cannot google back up my phone. its greyed out ... so annyoing

Hello I'm new member who also buy Chinese version I very like this smart phone.
I found on the internet this method https://vivogeek.com/root-vivo-iqoo-9-pro/
but I don't have usb c to normal usb to try....
maybe somebody who can connect original cabel will check this method...

IguanaX said:
Hello I'm new member who also buy Chinese version I very like this smart phone.
I found on the internet this method https://vivogeek.com/root-vivo-iqoo-9-pro/
but I don't have usb c to normal usb to try....
maybe somebody who can connect original cabel will check this method...
Click to expand...
Click to collapse
If something looks so easy it cannot be true. This metod simply does not work.

Question Poco F3 MIUI global 13.0.7 : VoLTE and VoWIFI activation

Hi,
I don't have the Volte and vowifi options in the settings menu. So i tried the *#*#.... and nothing happen.
Otherwise i fond this phone to have a bad reception and difficult to phone with, so vowifi is a solution for me
when i'm at home.
Thanks in advance.

VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*
use miui dialer or google phone

Thanks,
Already tried codes but i don't have the Miui dialer ont the global version and don't find a way to install it.

Open Modem test tools by using *#*#663368378#*#* code in dialer > Open MBN config loading and activating tool > select mbn_eea.txt for SW MBN > tap on validate > wait some secs for update then reboot phone

jamalikos1 said:
Open Modem test tools by using *#*#663368378#*#* code in dialer > Open MBN config loading and activating tool > select mbn_eea.txt for SW MBN > tap on validate > wait some secs for update then reboot phone
Click to expand...
Click to collapse
Does this solution require root? For me it says "Please apply to modem staff to get control rights." I am also facing constant disconnects, poor mobile reception etc. since the latest updates. It is really driving me crazy and I already tried resetting APN, mobile connections, full download of update etc. The only thing I have not tried yet is a full wipe as this will take a lot of time to reconfigure all the apps. But might be a further solution...

like for me "Please apply to modem staff to get control rights."

lipat34 said:
Thanks,
Already tried codes but i don't have the Miui dialer ont the global version and don't find a way to install it.
Click to expand...
Click to collapse
did you use google phone?

3zozHashim said:
did you use google phone?
Click to expand...
Click to collapse
You suggest i try to use my sim card in a google phone to activate the Vo*** ?

lipat34 said:
You suggest i try to use my sim card in a google phone to activate the Vo*** ?
Click to expand...
Click to collapse

Sorry i don't understant what you mean, it's the default dialer for miui global. So it's already installed.

go to settings -> sim cards and mobile networks -> (click on sim card 1)
VoLTE and VoWIFI should be there

nope, this is the problem. When i dial the codes nothing happen and no vo*** options in settings.

I think those settings have been removed from MIUI, but phone codes still works if you enable them.
Try this: go to settings / system info / all specifications / click 5 times on internal memory
This will open a services option for sim 1 and sim 2
Check if volte and/or wowifi are enabled.
Then use the codes provide few messages above via phone app and go back to this service screen and re-check if volte and/or wowifi status are changed.
It worked for me.

Thanks for the tips, but not working for me

Hi there. Same problems here. The manual activation with *#*#VOLTE#*#*, which overrides the network settings, worked with MIUI 12.5, but since MIUI 13 the command does not work anymore.
So now you only get VoLTE if your network provider gives it to you.
I see you have a french language selected, so you might be using Orange or Sosh network. They don't support VoLTE on the F3... I contacted support, and they activated a switch on my phone line. And I had VoLTE on the F3 with MIUI 13 with Sosh for a few days, before it went away again...

I'm using Bouygues network and volte is activated on the network. My problem is VoWIFI, since i have a very bas reception at home. Otherwise the network connection is very bad and i always have blanks in phone calls.

Anyway, if you enable Volte or vowifi but your carrier doesn't support it or didn't enable it for Poco F3 the services, them simply couldn't work

It's true but they're activated by the carrier. VoLTE works sometimes and VoWIFI doesn't work.
I think i have to change this phone cause i can't use it. Too many network lost ...

Sad but true.. Poco is simply a mess..
My carrier said that Poco F3 is not supported by it's network (that needs a specific firmware update to support any single device), but it came out my F3 can connect to volte and vowifi

Just want to share my experiences before I am using poco x3 and I enable vowifi in the setting, when making call via wifi I can hear the other person but they cannot hear me, it turns out that poco x3 is not officially supported by my network provider... Months later I changed phone to poco f3 as it's supported by network provider and the vowifi work flawlessly since then..