yashsingh1/xdaforums huggingface dataset:
[Vivo X Fold] frcraig:
The Japanese instructions for unlocking the bootloader, rooting with Magisk, and installing the VoLTE enabler module are dated June 26th. If find that date odd. For these instructions to work you would need to have a pre-June version of the firmware, because the June 1st security update removed the unlocking vulnerability that this method relies on. Vivo hasn't added any firmware versions for the Vivo X Note or the Vivo X Fold to its downgrading tool, so if you upgraded (like I did) before using this exploit you are out of luck. The reason I ordered the Xiaomi Mix Fold 2 is that unlike Vivo, Xiaomi allows you to unlock the bootloader, so I will root with Magisk (canary) and install the VoLTE enabler module the Japanese chap used.
[Vivo X Fold] shoho80:
ur right, the guy wrote at the top of the page (in red) saying that the latest version of OS is blocked from unlocking the bootloader.... maybe i shouldn't update my OS....
[Vivo X Fold] Q-Prof:
Just a statement/open complaint/rant:

Feels bad, people buy the Vivo X Fold and then Vivo removes the unlocking ability, and those that don't have the VoLTE because it is an import are stripped of any possibility of getting it to work. This is how to get rid of global customers and remove future sales, even if the hardware is good quality.

If the phone is being bought by people in other countries, why not allow customers willing to purchase from out of country to fix/update with a working solution. A few talented people go to a lot of trouble to resolve and improve the software of the phone and share with others, only to find Vivo has locked the bootloader. Vivo should at least have some flexibility in allowing us global customers to improve/fix the software issues on the hardware that overseas customers already paid for, so that it works with current carriers/bands/apps.

If a phone company has a great phone with their own country ROM and people globally are willing to buy and try it from another country, ???? why lock it, at least give us access!

Rant over...

At least, as you say, Xiaomi allows this so you can get the VoLTE working with local carriers.

I hope this works out for you frcraig and you are able to get the VoLTE access, as it looks like a sweet sleek phone. When you pull that thing out, everyone will be in awe about it.
[Vivo X Fold] Q-Prof:
and the conversation continues in video and in comments .....

import foldables would be far better if they were working globally (VoLTE - Vivo and Google services - Huawei) and Samsung would be forced to be more innovative with their hardware.
[Vivo X Fold] rocky272727:
Just read updated comments and https://yukimejiyoung.com/vivo-x-fold-volte/

Will keep searching if if there is any way to still unlock the Bootloader and wouldn't mind giving this a try.
[Vivo X Fold] Q-Prof:
Passing on to group, for what it is worth, continued conversation with Vivo Care (which seems to be going nowhere)...

So strange thing, after getting their response... I thought end of discussion.

Nope, they sent me another separate email telling me they were waiting for a response, so I told them:

--------------------

"I already responded on this, after over a week of waiting... on Facebook, then your email showed up. Anyway, thanks for your email response two days ago, I didn't know you wanted a response from your support email answer.

From your recent email you basically told me to not buy your phone (Vivo X Fold) as VoLTE probably won't work with a Canadian carrier (agreed as I already know VoLTE doesn't work here in Canada, what I was hoping for was a solution to solve the VoLTE issue)...

OK, so this left only one choice to purchase here in Canada, I pre-purchased the Samsung Galaxy Fold 4 instead of your Vivo X Fold... actually bought their top watch and ear buds also. I am already told from buyers (read the XDA discussion here) here in Canada, they can't get VoLTE 4G working because Vivo didn't certify with any carriers here.

Vivo could have certified with at least one carrier here in Canada and you would have sold a lot of your phones to compete with the only current Foldable, the Samsung Z Fold 4... even with the Chinese Rom the Vivo is a better phone hardware wise... like you did with T-Mobile in the States, as it works with that carrier... I may still buy the Xiaomi Mix Fold 2, as at least with Xiaomi you can enable the VoLTE here in Canada.

This is a shame, I would have changed carriers if you had at least certified VoLTE with one Canadian carrier, so that I could buy/use your phone with at least one them."

--------------------

Their response again today:

--------------------

"Thanks for your email and we are very sorry for the delayed reply. According to your query, we are sorry for the inconvenience. We are extremely sorry for the situation. We would like to inform you that, we take your demand as a suggestion and forward it to our concern team. Hope they will work on it very soon. Until then please be patient.

Can we help you with any other information?

Look forward to your further response.

Thank you so much for your valuable time and please keep us posted with questions.

vivo Customer Care

www.vivo.com"

--------------------

So for me I am not responding, as it looks like nothing will be done, my patience is all but done, and they are just passing my concerns on to pool of other missed customer concerns. - So much for global customer building and support.
[Vivo X Fold] Q-Prof:
Update ongoing.... so I got another email from service@pk.vivo.com (looks like another division, not general customer service from before (service.global@vivo.com ) but I think technical service, two days ago:

----------------------------

"Dear Customer,

Greetings from Vivo!

We are very sorry for the inconvenience you faced. With reference to your issue regarding Volte services, it is requested you please share your mobile's both IMEI numbers and also share the software version of your phone with us for further assistance. We would appreciate your cooperation.

If you would like to know anything else regarding our Products, do let us know."

----------------------------

So if rocky272727, shoho80, frcraig, or anyone in Canada that has the phone with no VoLTE 4G, who wants to send them the info they are asking for above, who knows... maybe they will oblige with a backdoor fix/update, or possible solution to get you working. - Long shot but hey if someone tries, you never know, they might just help, even if it is someway to get your Rom back to pre June's security update that is blocking the Bootloader from being changed.

Anyway.... I responded:

----------------------------

"I have not purchased the Vivo X Fold phone....

I was reviewing from other people I spoke to in XDA forum in Canada, who already have the phone and with our Canadian carriers, they can not enable VoLTE here in Canada.

I asked if there was a solution to getting the VoLTE working but your customer service has already told me in the last email to just not purchase it.

We found a fix, but your June security patch prevents the bootloader from being unlocked now, so not possible to fix the phone."

----------------------------

They responded earlier today:

----------------------------

"Dear Customer,

Greetings from vivo!

With reference to your query, we have shared the situation with our Developers we hope they will find the solution for VoLTE service in the future. Thank you for the information that you have provided. We appreciate you for your valuable feedback. Thank you for your email.

If you would like to know anything else regarding our products, do let us know."

----------------------------

For what it is worth, just keeping you all updated from what they have sent me from a different division. Sounds like nothing will be done, but maybe with the future Global rom, if there is one, on the future rumored Vivo X Fold S.

For now I am going to have to settle on my Samsung Z Fold 4, I just received, I really need a replacement and can't keep waiting, so have bought into the Samsung fold, watch pro, and buds 2 eco system.

Lol, my attention is somewhat drawn to the Mix 2 though, although at the moment the pros that I see, still out-way the cons against the Mix 2 Fold's full wide form factor/larger screens, thinness, flat folding, battery, and smooth OS overlay... in my humble opinion (I could still return all of it in the next week for full money back).
[Vivo X Fold] rocky272727:
Thank you for sharing these details. I have sent them an email with my details on both the email address.
[Vivo X Fold] Q-Prof:
No problem Rocky, great to hear you emailed them. I hope they can support some kind of practical solution for all, starting with you... I mean you have the phone and they should at least try to help.

Anyway, let us know if they are helpful anyway.
[Vivo X Fold] rocky272727:
Received the below response from Vivo.(service@pk.vivo.com) this looks like a support team from Pakistan

________________

Dear Customer,

Greetings from vivo!

We are sorry for the inconvenience, please allow me to guide you that issue has already been reported to the team and they are working on it as soon as we get any update will let you know.

If you would like to know anything else regarding our products, do let us know.

Regards,

vivo Customer Care Team
[Vivo X Fold] Q-Prof:
Well, it was worth a try, yes pk is probably that...

lol, in terms of their response, they probably have had a long list of complaints about the same thing. If I had the phone right now, I would press them further to get some kind of solution, and not let them get away with "were working on it... will let you know" and see if they can send you some kind of software solution, even if it is just to drop back the recent patch that locked the bootloader so you can apply that VoLTE fix yourself.

As for the global email, I didn't respond back to them since the last response from them and as they have now told me, as I didn't respond to their last email they sent, they have closed my case... even though the issue was not resolved.
[Vivo X Fold] rocky272727:
I'll keep following up until they give me a resolution, worth trying.

Also got an email from the Global team and I have provided a response that these steps didn't help.

1. Make sure your SIM card and phone support VoLTE, and it is enabled;

2. Insert your SIM card to another phone which supports VoLTE to check if there is the same issue. If yes, we recommend you ask your carrier whether VoLTE network is covered where you live;

3. Insert another SIM card from the same carrier into your phone to check if there is the same issue. If not, we recommend you change an SIM card;

4. Upgrade your phone to the latest version;

5. Go to Settings>(Dual SIM cards and )Mobile network>APN>Reset to default;

6. Restore(Reset) all settings. Don`t worry, no data or media will be deleted.

Please sahre us after following the instruction your problem is solved or not and from where you have purchased the phone?
[Vivo X Fold] Q-Prof:
Not sure if you seen this reply from frcraig in another thread about what he found out about the issue.

They need to either provide a way to enable the VoLTE or allow you to unlock the bootloader - which you could then use that VoLTE fix tutorial

Anyway, they are paid to provide support, so hopefully they follow through with some kind help/direction here.
[Vivo X Fold] rocky272727:
So got the email address of Support team from China and have forwarded them my correspondence with multiple support teams. Here is the email address Vivo@vivo.com for others if they want 5o follow up
[Vivo X Fold] domineus:
I think it is a good idea to email support these issues so then the issue is prioritzed and roadmapped for a fix
[Vivo X Fold] frcraig:
"Make sure your SIM card supports VoLTE". They don't get it. If our carrier provided SIM cards were provisioned for VoLTE then the options to enable VoLTE would appear in Settings/Mobile Network/SIM, but because Vivo devices have not been 'certified' (paid a certification fee) with Canadian carriers, then VoLTE is not provisioned. Other Chinese phone manufacturers, like Xiaomi, who face the same problem with non certification by Canadian (and some American and European) carriers help their customers by providing a dialing code that once entered into the phone's dialer app disables carrier check thus forcing the VoLTE settings to appear and allowing you to enable VoLTE without support from the carrier provided SIM card. Alternatively they make it simple to unlock your bootlocker and root so that you can enable VoLTE with a Magisk modlule or by editing your build.prop file.
[Vivo X Fold] rocky272727:
I tried using this code to disable the carrier check Dial * # * # 86583 # * # * and I turned off the switch, nothing works. Also my SIM Telus and Bell supports voLTE
[Vivo X Fold] Q-Prof:
Yes, frcraig and I had this discussion in the forum earlier and the dial code with Vivo phones doesn't work, as he already tried... Vivo just needs to certify with at least one Canadian carrier, then at least we could use that carrier, but no, not one, as they are cheap and probably don't think they can sell enough phones over here to make it worth while for them. That is why T-Mobile in the States works, while other US carriers don't.
[Vivo X Fold] frcraig:
Our only solution is root, but with no known exploits post June security update, the bootloader can't be unlocked. I'm in Calgary at the moment, but I had a note from DHL that they have left the Xiaomi Mix Fold 2 on my doorstep in Halifax. If it is still there when I get home next week I'll let you know if I can disable carrier check and get VoLTE on Rogers or Bell.
[Vivo X Fold] Q-Prof:
Yeah, that block on the bootloader really sucks!

I hope someone can keep your package secure, for when you do get back next week.... Excited for you, as this is a really sweet form factor. It will be great to hear how it goes with the disable carrier check... as you said, this has been done in the past with other Xiaomi phones, hopefully this is still the case... fingers crossed, lol.

As for me, I am just starting to use the Z Fold 4, watch5 pro, and buds2, coming from my previous old phone, lots to enjoy... just not the form factor, but everything else works well so-far, but would rather have the Vivo X or Mix2 form factors. Going to try out one of those Spigen cases, with the hinge protection and pen holder on the side, as the Samsung one with the pen is just not enough.

Anyway, have a safe flight home frcraig, look forward to hearing how it goes with the Mix 2 next week.
[Vivo X Fold] Q-Prof:
Got an apology/explanation:

-------------------------------------------

"Dear Customer,

Greetings from vivo.

We are very sorry for the inconvenience you have faced. The purpose to send you the last email is just to close this chain conversation, if we do not close this then the Auto reminder Emails would be generated to your Email after some Days and that could be inconvenient for you.

Regarding your issue, we have already reported to our relevant team and they are working on this to sort out the problem. Once, there will be any progress we will inform you. We understand your feelings that a Flagship phone must support the VoLTE service in your Country and we hope that in future it will be supported in some Networks. We appreciate your understanding and cooperation in this regard.

Thank you for your Email.

Regards,

Laiba Kanwal

vivo Customer Care Team"

-------------------------------------------

.... so they say they hope that in the future, VoLTE will be supported.... so they are saying not for current models. So much for getting a current fix for current phones.
[Vivo X Fold] Ahmedjasjar:
Heya fellow Canucks, Just recently acquired the X fold 256gb used in mint condition locally for $1300 plus shipping so it was well worth it either way. Ofc its unfortunately updated until the latest version, 5g works out the box but Volte doesn't have tried the carrier route in the past with an international note 9 and a local bell branded outright purchase lg v60 dual screen on Fido and it seems it only worked once with plan switch where they activated the new plan with the sim in the old phone Note 9 and Volte including wifi calling worked awesome (obviously this means carrier is holding out on us) Until I bricked it but thats a whole different story lol. Have seen it done csc (carrier sales code) changes like flashing a carrier list of Canadian or european providers but that ofc requires an unlocked bootloader . Was thinking around the lines of somehow trying to flash something using the recovery it doesn't allow non vivo files (option is there but greyed out) but maybe it will allow an official old image or if it gives the newer version error message maybe we can flash a rooted pull of an updated rom if we make it look like its from vivo and official? Also any tips and tricks would be appreciated, anyone manage to get google assistant hey google option turned on? Nice to meet ya all, thanks in advance.
[Vivo X Fold] Q-Prof:
Hi Ahmedjasjar

Sad to say, between speaking to XDA members, research, discussing with Vivo Care and Service, there has not been any solution to the lack of VoLTE 4G with this phone, as you may have seen in the past threads for this topic. Hopefully someone can find a fix for this though, so all we can do is keep trying. I really wanted to buy this phone, but ended up getting the Z Fold 4 as a safe bet as the VoLTE as you have found out, doesn't work with Canadian carriers.

I hear what you are saying, but once they locked that bootloader with the June security patch, not sure what else can be done.
[Vivo X Fold] rocky272727:
Got a new update and wifi calling has been switched on.....awesome newsView attachment 5702127
[Vivo X Fold] rocky272727:
Wifi calling enabled with this update
[Vivo X Fold] azim.esmail:
GREAT news. I've been debating on getting the Xiaomi Mix Fold 2 or Vivo X Fold S (when it comes out). This adds a point to Vivo.
[Vivo X Fold] rocky272727:
This is what I see with code *#*#4636#*#*
[Vivo X Fold] Q-Prof:
So when you say update, you mean from Vivo... was this a major update or a security patch?

Your image shows VoLTE is turned on, so is it actually working, right?

You are with Telus, so probably with Bell, this will work also then, I would think.
[Vivo X Fold] rocky272727:
Hey, I have both Telus and Bell and it is working with both of them. I posted the update on this page with the change log

https://xdaforums.com/t/vivo-x-fold-tips-and-tricks.4441939/page-45

Looks like a minor 12.x.7 version including a security patch and other fixes. I also have the voLTE with HD icon now displayed for both my lines.
[Vivo X Fold] Q-Prof:
Well that is good news, lol.... if they had this a two weeks ago, I probably would have got the Vivo as I was on the fence, but then with no VoLTE and no promising solution from Vivo Care/Service, it was a big negative for me... I wonder if all that noise I made with the Vivo Care and Service departments got the developers to actually listen and do something resulting in that update?

I have the Z Fold 4 now though (along with their Watch 5 Pro and Buds 2 Pro eco system), I could not wait any longer as I was already waiting over a year at that point with my old 2016 edition phone. I am getting use to the smaller front screen with instant access to the larger screen when needed I think, coming from a 7" screen, but that Mix 2 now, is looking pretty sleek and interested on hearing frcraig's take on his once he gets it going. For now the Z Fold will be my main driver....

the one thing with these imports is, you can't beat Samsung's refined software integration here in Canada which I am happy with... I am still scratching the surface with it, in that respect.
[Vivo X Fold] azim.esmail:
I returned my Fold 4 because I hate the outside display. Way too narrow for me to properly use. If it had the same form factor as the Vivo or Xiaomi, I would have 100% kept it.
[Vivo X Fold] Q-Prof:
Yeah, that is the trade-off, I balanced out wider screen form factor vs refined software, and I have to say, the software won out. Also having no VoLTE on the Vivo two weeks ago and asking Vivo Care/Service for a solution to no avail, I had to get something, so it was the Z Fold.

Picked up a Spigen Slim Armor Pro Pen Edition case that holds the pen on the side, has spring loaded hinge protection, added a pop socket and ESR kickstand, and pretty happy with it. I am starting to get use to the smaller form factor on the front and find I am using it more than the inside screen, and it is always sweet opening up to the larger screen for the extra screen space.

YES definitely a wider form factor would be big PLUS, but going to stick with the Z Fold 4 now.
[Vivo X Fold] rocky272727:
My phone works in US on Bell and Telus roaming with 5G, without any issues.
[Vivo X Fold] Q-Prof:
Good to know, what about the VoLTE?
[Vivo X Fold] rocky272727:
Works and have the HD icon
[Vivo X Fold] Q-Prof:
Wow, that is great news Rocky, Vivo is looking a lot better now. If they had this figured out 2 weeks ago I may have bought their phone rather than the Z Fold 4.
[Vivo X Fold] rocky272727:
I know, I was also looking for ways to root the device and force enable voLTE. It could be our multiple emails to the Vivo China email where they might have released a small fix to force enable voLTE in the phone. When I spoke with Telus this week the confirmed the device is not officially a Telus supported device for wifi calling and voLTE but if it has a feature it might work. The rep disabled and enabled it from Telus again I was able to get voLTE. See if it's possible for you to return Z4 and get this device, I have had Samsung phones before and since I moved to Huawei and Vivo I can say there is no comparison to hardware, software for sure is shabby due to localization issues.
[Vivo X Fold] Q-Prof:
Yeah, I am too late to return the Z Fold 4 and I have bought a top of the line case, screen protector, pop socket, kickstand and their Watch 5 Pro with the Buds, so I am pretty committed now their eco system.

I am pretty happy with everything so-far... just the form factor is the big negative (which I am getting use to), as I know the software is the best out there right now, plus some other small refinements and perks such as the S-pen, flex mode, Dex, IP68, etc.
[Vivo X Fold] frcraig:
I'll put my Rogers SIM back into the X Fold and see if yesterday's firmware update resolved the lack of VoLTE for me as well. I've had the SIM in my Xiaomi Mix Fold 2, which was on my doorstep when I returned from Calgary yesterday. By entering * # * # 86583 # * # * into the Xiaomi's dialer app VoLTE instantly appeared, and the HD comes on and stays on during voice calls. The Xiaomi seems so much lighter than the X Fold than I'm afraid I will probably end up dropping it. No problem with switching the default keyboard, messaging app, etc. to Google, although like most Chinese ROMs it reverts to stock after reboot. The moral to the story is don't turn off your phone : )