yashsingh1/xdaforums huggingface dataset:
[Windows Phone 8 General] tinpanalley:
That's the problem, I can't. I live in France, I'd be getting these from the US and being brought by my parents when they visit soon and I'd have to unlock the 1073, flash it with a 1072 ROM, all just to see IF it works. I know the ATT Go version is only 50bucks, and it's not even the effort of flashing, but it's still 50 bucks down the drain if it doesn't work.

And if it doesn't work then I'm stuck with an unlocked ATT 640 that only give me ONE band (Band 3 - 2600) that can connect to my 4G network here. From what I understand, that's not enough.
[Windows Phone 8 General] tinpanalley:
2600 is band 7, yes. Consistent LTE isn't essential but I'd like to be able to be on 4G sometimes and if 2600 is the only way, then that means in any fluctuation, I'd drop to 3G. Apparently, on my carrier in Paris, I'd also get UMTS B1 (2100) for UMTS and HSPA+ but not B8 (900) which my carrier also provides. And then of course GSM. I don't know why I'm so concerned, I had a FULL 4G phone in New York a few years ago and it never went above H+ at

best

(which was actually sold as "4G", don't know how they got away with that). I don't know what an NVI update is but from everything I've read, it doesn't look like a 1072 ROM is ever gonna work on a 1073.

My current phone, a Lumia 925, has 3 4G bands and gets them all from my carrier in Paris. So I rarely go down to 3G but it does happen in certain neighbourhoods and in a lot of places outside of Paris. I just wish I could knock down two of them to see what my phone would feel like with only 2600 running. Because this 925 is also only dual core and the 640 is quad. So, just that alon would keep the phone running faster even than mine now. Is there an app at all that lets you see which bands you're using and disable a few to do tests?
[Windows Phone 8 General] tinpanalley:
Doesn't work on my phone. I tried all these variations as well.
[Windows Phone 8 General] rouyal:
^This. Hopefully somewhere other than "Mega" also.
[Windows Phone 8 General] smokin901:
I was able to see band # 3 in the Field test menu after doing nvi update, but phone will not detect vodafone LTE which runs on 1800Mhz.
[Windows Phone 8 General] YakBizzarro:
Error 0x80040154

Hi!

I'm continuously getting the infamous error 0x80040154 when I try to run iutool.exe. I tried on two different computers (Win 7 an 8.1), but no luck. I also reinstalled WDRT several times. Does anyone have suggestions?

Thanks!!!
[Windows Phone 8 General] YakBizzarro:
Resolved! For future reference, remove all unnecessary usb devices. In my case there were some strange interference with iutool.exe and my usb key. Thanks for the wonderful guide!
[Windows Phone 8 General] groskwik:
I live in US but I'm french. I bought a 640 for 30$ and I can tell you that you can unlock and flash it with french rom easily.

This phone will be for a friend. He will have it around mid-april.

I will tell you if 4g works well or not with only one band in his area (Marseille)
[Windows Phone 8 General] tinpanalley:
Oh ok, cool, thanks! Well I've already bought mine. The fact is that in Paris, in about half the city you're getting 3G or H. It's not because the city's coverage sucks but because, at least where I go, I'm often in small streets, indoors, parks that are never very good for reception for some reason, etc. Also, when I sit anywhere, it's usually somewhere that I can pick up WiFi and even if it's a cafe with no WiFi, you never say "Oh, I'm only getting 3G? Forget it then, that's too slow." :laugh:

4G is very good here but it's not perfect and if you get anywhere near a major street, interesection, tourist area, it really drops.
[Windows Phone 8 General] abhishek.banerjee:
That's true of 4g in a lot of places

I am from India and can exactly relate to what you are saying

I have the 640 and will not debrand at all as it runs so good stock

Compared to other Android AT&T models windows phone also restricts the crap that can be loaded by the carriers anyways [emoji1]
[Windows Phone 8 General] rainking430:
I have a Tmo 640 I'd like to enable band 12 on. Would I need to flash it to AT&T, then reflash to TMo, or is there an easier way to enable it?
[Windows Phone 8 General] evilvoice:
Huh? It should already have band 12 if it's t-mobile
[Windows Phone 8 General] rainking430:
Oh ok, I was under the impression that band 12 wasn't stock, but a bonus band enabled by the rebranding. Never mind then.
[Windows Phone 8 General] jamssx:
No it's the ATT image that is no where close to stock. In addition to disabling band 12, ATT also disabled VoLTE and WiFi calling, put in an unnecessary hotspot app that runs as service in the background and installed a crap load of other unneeded apps.
[Windows Phone 8 General] groskwik:
Did you manage to change back your latform ID ?
[Windows Phone 8 General] EsJayEs:
You shouldn't have to change your platform ID to revert back to 8.1. If you've successfully flashed a non-ATT firmware, you can set your platform ID to any RM-1073 variant and WDRT will install the latest firmware for that platform ID.

In other words, let's say your running the unbranded Mexico firmware, but your platform ID is set to T-mobile. If you recover your phone with WDRT, it will install the T-mobile firmware and vice-versa.

If you're still having trouble, reboot your computer, make sure you're using a USB cable that is in good shape (ideally less than one meter in length), and try again.

For those that are worried about an error message when pushing the CAB files, just ignore it and continue the process. Chances are that the CAB files were successfully applied if you followed the steps. If the CAB files didn't apply, it won't let you flash a non-ATT firmware.

If you're still having trouble, read the entire thread and search the web for solutions to your error. Some things just need to be figured out on your own. In the process of researching, you may learn other useful information that helps you out and find a way to better communicate it to others.

Most of the questions being asked here have already been answered in one way or another. :)
[Windows Phone 8 General] sachin.gokhale:
bit off topic, but please can anyone confirm, has Windows 10 (Normal) upgrade is started for Argentina or Mexico ROM ? or Can anyone please update if it starts rolling out for these CV ROMs ?
[Windows Phone 8 General] KingAdRock321:
Got this too......I checked the phone and it was at the screens that tells me there is no sim installed.....closed that and was able to successfully flash then!!!!! Thanks All!
[Windows Phone 8 General] southy:
Dear all,

Thanks, AT&T, for a very nice phone (640 GoPhone) at a dirt cheap price!

I took one home to Germany and it _almost_ works just fine here in Germany on the stock ROM:

Initially, after unlocking, I installed the Insider App and had Win 10 previews. All worked fine, especially: I _did_ install a german keyboard.

Then I did a hard reset - I'm back on Win 10 regular release (non-insider). But now, I have a problem with the keyboard: I can not install a german keyboard, it will always show "attention required" to download the vocabluary files. This seems to be a known bug, however the fix is to use the "Insider app" - which I don't have any more as I want to stay on regular releases now.

Are you guys able to install additional keyboards on your AT&T ROM?

As it seems there is no fix for this problem, I assume moving to an international ROM would probably help (beside providing VoLTE and getting rid of all the AT&T crap)?

But:

- I already have Win 10 on it. It seems you guys suggest to do flashing only if Win 8.1 ist installed, but not on Win 10.

After my hard reset, I don't recall doing an upgrade... is it possible that somehow the factory default ("backup image") has been upgraded to Win 10? So how would I go back to Win 8.1? Or did the phone just update in background and I didn't notice? ;)

- which ROM to take: (European ROMs are not available for RM-1073, only in 1072)

- Should I take an international RM-1073 (keeping the correct model) or go for a german RM-1072 (going "Europe" but having to change the model code)?

- suggestions on to which international version? 059X153 seems to be mentioned here?

This script is intended for devices on win 8.1, right? or will it also work with my win 10?

Thanks for helping out guys!!

southy
[Windows Phone 8 General] TheBosZ:
I don't know for sure, but I'll try to answer your questions.

As far as I know, the models aren't actually different and you can install an image for any of the 1072-1074 models.

It looks like I was wrong per other posts on this thread. I would put this at at a "no, you can only install the ROMs for the correct version".

Yes, you should be on 8.1 before you try to flash. You can downgrade using the Windows Device Recovery Tool.

---------- Post added at 04:43 PM ---------- Previous post was at 04:17 PM ----------

I have a download with thor2 and iutool in my Reddit post (link in this post, I'm too new to post links)
[Windows Phone 8 General] jamssx:
To be more specific. You must install a RM-1073 first and issue the NVI/Factory reset to add back band 12 (not that that is important in Europe). After you can use an RM-1072 image as long as you

don't

do the NVI/Factory reset. However other than language (the keyboard you wanted) the only advantage would be if the network had something specific such as EE and their wifi calling. Now if at some time the regular updates triggered a firmware update it might screw you up. It's not really a supported configuration. Proceed with extreme caution.
[Windows Phone 8 General] southy:
Yeah, I have read both opinions here and elsewhere as well...

Ok, that's rather complex. Especially in light that my motivation in the first place is the keyboard-bug and not Band 12 or so...

Perhaps I can solve this bug in a different way.

Perhaps it's sufficiant to flash to a different RM-1073 image...

Or I just restore Win 81 and try downloading the keyboard _before_ updating to Win 10 again...

Suggestions here in the thread seem to go to either

RM-1073 059X153 - RM-1073 VAR LTA 7R CV

What kind is that? "CV" = country variant? But which country?

So this will have no carrier-added bloatware?

or the T-mobile

059X0P7 - RM-1073 VAR NAM US T-MOBILE SL

Well, as the T-Mobile seems to work fine, I could just start with that, check the keyboard and if all is fine, then even better...

Does either one support VoLTE? (Because that's the only feature relevant here in Germany - WiFi calling isn't possible here).

Thanks!
[Windows Phone 8 General] pizzaboy192:
The T-Mobile one does. I cannot confirm any other CV or carrier ROMs.
[Windows Phone 8 General] southy:
Something is very wrong here: I just set the device back to Win 8.1 with the Device recovery tool.

No SIM in, no SD card in, just WiFi - and I haven't installed or changed anything at all except setting the region to "Germany".

But still I can not download the keyboard.

Which is _really_ weird... not only that it just doesn't work, but also that it _did_ work before: when I was part of the "fast ring" insider programm. Perhaps I need to re-enter "insider"...

But let's try flashing first...
[Windows Phone 8 General] angomy:
The ROM you mention is the Latin America/Mexico ROM (059X153).

The Argentina ROM (059X227) has the largest # of bands including band 12 and is not carrier-specific. I was using it briefly but had to switch ROMs since it doesn't allow US-English for default language on setup (disables Cortana). It did have German (Deutsch) as an option, AFAIR, as well as other flavors of English.
[Windows Phone 8 General] southy:
Hi,

I tried 059X153 (keyboard problem persisted) and now am on 059X227 - and all of a sudden I can download the german keyboard.

Problem is only: I am at home and I'm pretty, pretty sure I should and did have strong LTE signal right here... but with both versions the phone left me hanging with HSDPA.

Well, I'll perform the update to win 10 now, perhaps that helps.

What can that be now?

I also tried ##3282#, but got an error only, no infos.
[Windows Phone 8 General] pizzaboy192:
The LTE display depends on the ROM. T-Mobile has been known to show LTE when it's really HSDPA, along with other US carriers that try passing off older tech as LTE in order to make customers happy. It's probably always been HSDPA but didn't show up as such depending on ROM.

Also, to get ##3282# to work on ROMs where it's disabled, you might need to edit it into the registry. I'll see if I can find the location if you're interested in trying that.
[Windows Phone 8 General] southy:
You are talking about T-mobile USA? Are you serious? You tell me your US-network operators modify ROMs to forge an LTE symbol on screen where there's only 3G?

Wow. You guys do have strange ways of conductings business over there indeed.

I'm on a german network and I am definitely sure that I have been on real LTE before - I live here for quite some years now and I have quite a bit of gear LTE-capable.

Also I am sure something like that is not being practised here in Germany, not in any of our networks. Believe me: I would know.

Alright - tried with another SIM of a different network - also 3G only; where I just saw it on LTE full reception in my ipad a minute earlier.... Same vice versa in a Blackberry right now...

Something _is_ fishy here.

If you find it then that would be great.

Meanwhile I will try to revert back to AT&T ROM to see to get the thing back to original condition...

Thanks!

[Edit]

Strange - I have swapped ROMs multiple times now, every time doing:

thor2 -mode uefiflash -ffufile <NAME_OF_FILE> -do_full_nvi_update -productcodeupdate <PRODUCT_CODE>

But when I want to apply the original ATT (059X153) ffu with the 059X153 product code, then it fails "wrong platform ID".

Hmm... going to use the DRT now, but I have no idea to which ROM it defaults back to, now having a different platform ID than at the beginning...

Let's see...

To go back to the AT&T image, if there anything specific other than thor2 -mode uefiflash -ffufile <NAME_OF_FILE> -do_full_nvi_update -productcodeupdate <PRODUCT_CODE> to be done? What's with all the other files apart from the .ffu?
[Windows Phone 8 General] pizzaboy192:
I was surprised too when I first heard it, but was able to confirm it with some older T-Mobile phones and an international unlocked device as well. Both phones shared the same bands, and when the T-Mobile branded one showed LTE in some areas, the unbranded one showed H+. I've seen this happen with AT&T as well (Area I live in now has AT&T H+, but an AT&T ROM will show LTE instead)

This has to do with having rebranded the device. The three cabs you flash first edit the product platform to one that isn't an AT&T platform. I believe somewhere in this thread there are cabs to restore it back to an AT&T device, but I am not 100% certain. The only other option is to upgrade the device to Win10, interop unlock it, and edit it via the registry, then plug it into WDRT and recover. It should then detect it as an AT&T device instead. AT&T uses a modified platform ID (normal ones end in 1.1.1, AT&T ones end in ATT.1.1) so that people can't easily do this process that this thread is for.
[Windows Phone 8 General] jamssx:
No that's not accurate. H+ displays as 4G on T-Mobile devices not as LTE for marketing as their H+ met the speed requirements for 4G, which is why Verizon and ATT introduced the term 4GLTE also as a marketing tool to differentiate. It is confusing but with the T-Mobile ROM H+ will show as 4G and LTE will show as LTE.
[Windows Phone 8 General] pizzaboy192:
That's what it was. It's been a while since I've been in a service area with the discrepancy. And It was my AT&T phone showing LTE on 4G areas.
[Windows Phone 8 General] southy:
I can confirm this now:

I have the T-Mobile US image on, ##3282# working.

"4G" is displayed, but by enabling/disabling WCDMA / LTE bands, you can see that "4G" = WCDMA and LTE = LTE.

This does indeed explain why I have seen both 4G & LTE on various situations with the AT&T image as well. I was already wondering about that, but would have never guessed.

It gets even better: The ipad that I used in my argumentation "why I am sure there is LTE im my appartment" does also sometimes show "LTE", sometimes "4G". So it could just be as bogus as the Lumia.

And that one is not a US-device.

But all in all, that does simply indicate that nothing is broken with my phone, there is just not enough LTE signal here. I will check that outside tomorrow to get reception. As long as LTE works if there is signal, all is good, right?

Now I can choose between a lying T-Mobile image and a truthfull 059X227 - RM-1073 VAR LTA AR CV SKD... both allowing german keyboard.

That was then, after all, the whole point of the excercise...

Thanks so much for all of your help, guys. You are really great!

[Edit]

It is a pain. It really is a pain.

Now I have twice (!)

- flashed the 059X227

- checked: everything working on win 8.1, incl. 3G data connection

- loaded german keyboard and

- updated to Win 10

....=> and the data connection is gone. there is cell reception, but it doesn't establish a data connection. (data allowed and enabled).

This whole thing really is a nightmare.

I will go back to the T-Mobile US ROM now.

[EDIT 2]

How how superb: The T-mobile ROM is not entitled for the Win 10 update.

I dont believe it.

Why do so many people here use the T-mobile? Did you all stay on Win 8.1?
[Windows Phone 8 General] pizzaboy192:
T-Mobile has issues with it's wifi calling on W10, so they've held the update back. The Insiders "Release preview" build is identical to the one that is being pushed out officially. There isn't newer firmware for it, so installing that from Insiders will get you 10.
[Windows Phone 8 General] jamssx:
To follow the saga of the wifi calling fix you can follow this thread over at MS http://answers.microsoft.com/en-us/feed/t/1ea2a4b5-9b2d-46ad-a3ad-e160686766f4 but some people are saying it's working on the latest Redstone build.
[Windows Phone 8 General] southy:
Good tip.

[EDIT]

Did get it work.

Found out something new: apparently if you have before been "Insider" and left the program, when you want to re-join, your devices will show "no builts for this device".

Thanks to you all!
[Windows Phone 8 General] southy:
Interesting thoughts, thanks.

For today, I'm enjoying a working phone.

But I also note that it's only on "4G" (T-Mobile US wording for "HSDPA" - I still think that's cheating) and I will compare over the next days with my blackberry to check this. Then perhaps I'll really try one of the RM-1072 ROMs, but that's a whole different story then and I'll need to understand way better the different opeions of thor2 and what it actually is that I'm doing...
[Windows Phone 8 General] Prosis:
I'm getting the EXACT same error... nothing happens after. What can I do?
[Windows Phone 8 General] pizzaboy192:
Try flashing a ROM. some times it says FAILED after it actually takes. If it lets you flash a ROM, it's good, if not, try again.
[Windows Phone 8 General] jamssx:
Package already installed. You should be able to flash it now....
[Windows Phone 8 General] rainking430:
That link doesn't work.
[Windows Phone 8 General] jamssx:
Works for me. Try this one then http://answers.microsoft.com/en-us/...d/1ea2a4b5-9b2d-46ad-a3ad-e160686766f4?auth=1
[Windows Phone 8 General] rainking430:
Ah, yeah, that's the one I've been watching already. Where are you seeing the reports that wifi calling is working on the latest build for some? I've got two up-to-date 640's on the Redstone fast ring (14295) and neither of them are working with wifi calling still.
[Windows Phone 8 General] sachin.gokhale:
This worked for me as well. But still have few question, Does same approach works for Argentina ROM as well ?

Can I downgrade from Mexico-Win 10 back to Argentina-WP 8.1 ? if it is possible, then how ?
[Windows Phone 8 General] Prosis:
No that didn't work. But I was told it was only doable if the device isn't already running on WM10. So I'm rolling back to 8.1 and I'll try again and keep you posted. Thanks :)
[Windows Phone 8 General] jamssx:
This is what I saw http://forums.windowscentral.com/mi...ia-640-t-mobile-windows-10-a.html#post3451179 can't vouch for the accuracy (not jumping to the post #52)
[Windows Phone 8 General] Prosis:
Quick question though: where does those CAB files come from? They can be trusted?

---------- Post added at 12:54 AM ---------- Previous post was at 12:40 AM ----------

Oh! I found a post on reddit!

https://www.reddit.com/r/windowsphone/comments/4bcvgg/comprehensive_guide_to_lumia_640_unlocking/

That was my error!
[Windows Phone 8 General] sachin.gokhale:
Can any body confirm windows 10 is available for Argentina ROM as well through windows upgrade advisor ?
[Windows Phone 8 General] Prosis:
What happens to those 3 files once I flash the ROM? Do they get deleted inside the phone?
[Windows Phone 8 General] Prosis:
Do I need other files if I ever want to go back to AT&T or should I use the same files or just change the product code like in the tutorial and flash the ROM from WDRT? Do those CAB files come from a 640 from T-Mobile or elsewhere? Would they work on another carrier (say MetroPCS for example)?
[Windows Phone 8 General] jamssx:
You're wiping the device completely when you flash the device and doing the NVI/Factory reset. So they are no longer there. Currently no one has the matching files to set it back to the bodged ATT product code so if you want to use it on ATT just use it as is. Otherwise you can use any RM-1073 image for any carrier.
[Windows Phone 8 General] southy:
Well, for us here in Germany, the 3 carriers here use the follwing bands:

T-Mobile: 3, 7, 20

Vodafone: 7, 20

O2/E+: 7, 20

The RM-1073 only knows 2, 4, 5, 7, 12, 17, 28 (with band 12only available after debranding).

That leaves only band 7 (2600 MHz) to be used, with is in use only in city centers.

That in mind, I checked with a Vodafone SIM today briefly in Hamburg downtown, but was not able to convince the phone to use LTE.

Now I know for a fact that I have seen "LTE" on it with the AT&T ROM briefly several times, but that could have been indoors, perhaps due to 2G/3G not available. Perhaps it even threats LTE as lowest priority...?

==> So all in all this phone is not a good choice if you want to use LTE in germany, with any one of our carriers here.

I suppose the lack of band 20 is a hardware limitation? Or could branding over to RM-1072 help?
[Windows Phone 8 General] Elias.Nicolas07:
This is only for AT&T phones? :confused:
[Windows Phone 8 General] kravmama1:
I flashed T-Mobile ROM today and installed Windows 10 insider preview. I selected "release preview" option and am on build 10.0.10586.107. Inserted my T-Mobile SIM card. Wifi calling working. To test, put in airplane mode, wifi on, wifi calling on. Was able to call my landline. The phone symbol appears with the wifi icon indicating wifi calling.

EDIT: Wifi calling no longer working with new update 10.586.218
[Windows Phone 8 General] rainking430:
I was afraid of that. Thanks for at least reporting back about it, saves me the trouble of rolling back a phone to test that.
[Windows Phone 8 General] skw0312:
iutool.exe -p C:\Lumia -V does not work

it said "this app does not support your PC"

I amusing 64bit version of windows 10...

don know what is the problem.

---------- Post added at 11:20 PM ---------- Previous post was at 11:14 PM ----------

I am using 64bit of windows 10 and when I type command on cmd.exe

"This App does not support your PC" pops up and said 'access denied' cmd.exe

I tried different compatibility, but it still same. any idea?>
[Windows Phone 8 General] jamssx:
Are you running with an elevated (admin) command prompt?
[Windows Phone 8 General] skw0312:
no... I am using my account but run command prompt as administrator
[Windows Phone 8 General] angomy:
Does the Wifi Calling issue with current builds of Windows 10 *only affect WiFi Calling*, or is VoLTE also not working ? I'm not really concerned with WiFi Calling since it's not a feature I use much, but I need the better building penetration from Band 12 / VoLTE.