Develop Bugs

[Q] where to buy?

Hello, I would buy the HTC M8 red, possibly in the 32gb version.
I'm having difficulty finding a store that has available.
I also tried swapped, but sellers indicate that send only in the United States, and I live in Italy.
What do you suggest?
Thank you very much and good evening

Make sure you don't get the Verizon (US carrier) variant. Most red M8 versions are Verizon; although apparently a red version was made for the UK as well (but I'm guessing the red UK version is not very common).
Verizon variant has CDMA antenna (not necessary as your carrier is likely GSM) which also complicates usage of custom ROMs, etc.
Also, Verizon variant is block from bootloader unlock via HTCDev.com (may be able to s-off and unlock bootloader with sunshine exploit, but depends on OS software version on the phone). So if the OS version on the phone is up to date, you might not even be able to root, flash custom ROMs, etc.

many thanks for the answer, really very useful, I did not know anything.
All HTC M8 Red are of Verizon?
So even if it was the UK version, may not be a way to unlock the bootloader and flash new rom?
thank you

redpoint73 said:
Make sure you don't get the Verizon (US carrier) variant. Most red M8 versions are Verizon; although apparently a red version was made for the UK as well (but I'm guessing the red UK version is not very common).
Verizon variant has CDMA antenna (not necessary as your carrier is likely GSM) which also complicates usage of custom ROMs, etc.
Also, Verizon variant is block from bootloader unlock via HTCDev.com (may be able to s-off and unlock bootloader with sunshine exploit, but depends on OS software version on the phone). So if the OS version on the phone is up to date, you might not even be able to root, flash custom ROMs, etc.
Click to expand...
Click to collapse
I found a HTC M8 Red unbranded, of German origin.
I can go quiet, it will have no limitations from you indicated?
I would have full support from communities with different rom etc?
I might as well turn it into Google Play edition?
I am concerned that the 16GB version ...
Thank You

fivemarcus said:
I found a HTC M8 Red unbranded, of German origin.
I can go quiet, it will have no limitations from you indicated?
I would have full support from communities with different rom etc?
Click to expand...
Click to collapse
Versions from the UK and Germany will not be the same as Verizon (US only).
So yes, they should support ROMs and other mods intended for the "international" GSM M8. But I would find out the Model ID (MID) to be sure of what you are buying.
fivemarcus said:
I might as well turn it into Google Play edition?
Click to expand...
Click to collapse
That is a question only you can answer for yourself. Its a personal preference whether you want the GPE interface, or Sense.
Once you have the bootloader unlocked, you can just run an GPE based ROM to see if you like it.
You only need to "fully convert" if you want GPE updates OTA, or the GPE partition layout (system partition is smaller, so there is more user storage). But s-off by sunshine ($25 US) is needed to fully convert (in order to change CID and MID).
But also be aware, that fully converting also changes the band compatibility of the phone. So you will want to make sure your local carrier's 3G and 4G bands are supported by the GPE version, before converting. From what I've read, you can flash a Sense radio to a GPE converted phone. So again, it depends on your individual needs, and how you intend to go about things.
fivemarcus said:
I am concerned that the 16GB version ...
Click to expand...
Click to collapse
Again, it depends on your personal preferences and needs.
I agree that 16 GB is not much internal storage, especially if you like to install lots of apps, or download large files.
The phone has a MicroSD slot, so you can use a removable card to greatly expand your media storage for videos, music, photos, etc. But for things that need to be on internal storage, 16GB can be very constraining. You can also move some apps to the removable SD, but not all apps support it (so its not as good as having more internal storage).

redpoint73 said:
So yes, they should support ROMs and other mods intended for the "international" GSM M8. But I would find out the Model ID (MID) to be sure of what you are buying.
Click to expand...
Click to collapse
The seller told me with these codes:
Product code: 99HYK256-00
EAN / UPC: 4718487655779
What can you tell me about it?
P.S. I read in your signature, you are using the m8.
The thing reassures me

fivemarcus said:
The seller told me with these codes:
Product code: 99HYK256-00
EAN / UPC: 4718487655779
What can you tell me about it?
Click to expand...
Click to collapse
Hard to tell from those codes, but just Googling the Product Code, it looks like a German GSM variant (and not the US Verizon/Sprint CDMA versions you want to stay away from).

Best M9 Variant for Rooted User on AT&T?

I guess it comes down to which LTE bands are available and which carriers' phones can be BL-Unlocked. Please tell me if t his has changed, but I'm used to AT&T bootloaders not being unlockable, while TMO bootloaders are often readily unlockable but their devices don't always use the same bands as AT&T's network.
I'm pretty sure I want an M9. It looks like ATT/TMO hardware are the same, though I don't know which bands are available on their respective ROMS. I really want my device unlocked, and I might want to run a custom ROM at some point.
Is it recommended to get an unlocked TMO phone for use on AT&T, or does the TMO ROM limit the available LTE bands in any way? Or is there any reason I should just go with the AT&T version because, for example, it's easily rooted and/or there's a way to unlock the BL?
Thanks in advance.

Get the AT&T version.
HTC allows you to unlock the BL.
Sunshine allows you to S-off so you can convert it to the Developer Edition.
This is what I did, got the AT&T version through them then converted the Dev Edition

Need help to unlock bootloader and root my HTC one m8x

Hey guys i have an HTC one m8x Model: OP6B110, i dont know a lot about this cell phone, i had a Sony xperia z2 before. I need help to unlock bootloader and root the HTC in order to unlock aditional LTE bands. I cant navigate on LTE just 3g. Im running Android 6.0 and Sense 7, couldn't find any tutorial for this. Thanks in advantage.

Have had an m8x since launch and as far as I know the device is identical to the m8. So every guide for the m8 should work for the m8x

Wallee97 said:
So every guide for the m8 should work for the m8x
Click to expand...
Click to collapse
It should be noted that most guides are outdated at this point, and reference wrong versions TWRP (depends on Android build on the phone), SuperSU (recommend current stable 2.76) or mention firewater instead of sunshine s-off).
But otherwise, yes the process to unlock the bootloader, install TWRP and root the M8x is basically the same as the M8.

Vomer's guide, while dated, is still mostly relevant for what you want. You only need to do Section 0 and 1 in order to unlock bootloader and root:
http://forum.xda-developers.com/htc-one-m8/general/vomerguides-m8-bootldr-unlock-s-off-t2800727
I believe the only thing that is outdated in those section, is the TWRP version. You should use TWRP 3.0 from here: https://dl.twrp.me/m8/
And somewhat obvious, the command to flash TWRP will need to have the appropriate file name (with newer version number).
Don't follow guide Sections 2, etc. They aren't necessary to unlock bootloader and root, and the info is not longer accurate (firewater s-off no longer works).

redpoint73 said:
Vomer's guide, while dated, is still mostly relevant for what you want. You only need to do Section 0 and 1 in order to unlock bootloader and root:
http://forum.xda-developers.com/htc-one-m8/general/vomerguides-m8-bootldr-unlock-s-off-t2800727
I believe the only thing that is outdated in those section, is the TWRP version. You should use TWRP 3.0 from here: https://dl.twrp.me/m8/
And somewhat obvious, the command to flash TWRP will need to have the appropriate file name (with newer version number).
Don't follow guide Sections 2, etc. They aren't necessary to unlock bootloader and root, and the info is not longer accurate (firewater s-off no longer works).
Click to expand...
Click to collapse
Dude THANKS A LOT! i was able to unlock and root my phone, now i need to unlock the LTE bands.
I have this: LTE band 3(1800), 7(2600), 8(900), 20(800) - EMEA active on my phone, i need to unlock this bands:
- VIVA: 2100 download, 1700 upload, band 4.
- TIGO: AWS(B4) and 700(B17)
- ENTEL: 700MHz (BC12, BC13, BC17, BC28, BC44)
Mainly the TIGO bands. I was looking for any tutorial here and all seems to be outdated. If u can help me ill be grateful.

efirahola said:
i was able to unlock and root my phone, now i need to unlock the LTE bands.
Click to expand...
Click to collapse
Root by itself doesn't allow you to unlock the bands on this device.
The only working method I know of to change the band support, is to get s-off with sunshine ($25 US) and flash another radio baseband. Even then, a lot of folks have still failed to connect to their local carrier's LTE network, despite flashing the radio baseband with the proper LTE band support (or even full conversion by RUU). Not sure why this is happening, and haven't seen any solution, unfortunately. And due to this, it may not be worth spending the money on sunshine s-off, considering the risk of not getting the result you want.
My apologies, I didn't read your OP well enough to realize that unlocking LTE bands was the purpose for your rooting (just that you wanted to unlock bootloader and root). Otherwise, I would have advised this sooner.
Root is needed to perform sunshine s-off. But there is a lot more involved then just root, and you may or may not consider it worth the $ to try.

Yeah that was the main purpose of this topic... i have read a lot of guides but anything works for me, dunno whats wrogn bc theres ppl who could reach that goal to unlock some LTE bands. I really love this phone but im tired to have just 3g or 2g thats is pretty slow here. If theres a chance to unlock just this 2 bands: AWS(B4) y 700(B17) without spending money ill be the happiest man. Dunno if i did well rooting my device, tought it will help to my goal.

Hi All,
I also have HTC One m8 dual sim and want to root the device running Android 6.0. I tried step by step instructions provided in this guide however I can not proceed as I don't have fast boot option under settings\power. I am not a techi guy so not sure how to proceed further. Appreciate any advise or link to instruction for my version of device/Android.
Thanks

efirahola said:
Yeah that was the main purpose of this topic... i have read a lot of guides but anything works for me, dunno whats wrogn bc theres ppl who could reach that goal to unlock some LTE bands.
Click to expand...
Click to collapse
I can't speak to any of that, unless you refer to the specific mods/methods, etc.. Are those mods for this phone (M8) or some other phone entirely? If you are talking about the mod for modifying the NV values, as already stated, this only work on the Verizon and Sprint versions of the M8 (versions that support CDMA networks). On all other versions, the NV values are locked, and will return to default upon reboot.
If you are talking about mods for other phones entirely, those methods don't apply to the M8. Every phone has its own peculiarities and nuances.
efirahola said:
If theres a chance to unlock just this 2 bands: AWS(B4) y 700(B17) without spending money ill be the happiest man.
Click to expand...
Click to collapse
You need s-off to modify the radio baseband, that's the plain truth. And you need to spend money ($25 by sunshine) to get s-off.
One thing you can check, is look on the bootloader screen and see if its s-on or s-off; in the unlikely event that its already s-off (a small number come s-off from the factory, some will have been modified by a former owner or seller).

Frequency unlock

Hello guys, I have an HTC M8 and I would like to know if there is any method to unlock LTE Band 38(2600) because I've searched on Google and I've seen some methods for Sprint ones and AT-T, but I'm not sure if that method will work for me. My phone is not locked on any carrier, it's the international one. Maybe you guys could give me some links or something like that, thanks in advance.

The method to unlock the bands only applies to the M8 "CDMA" variants Sprint and Verizon (and I don't think it even works on Sprint). It doesn't apply to the AT&T version, but I think you may just be mixing up AT&T with Verizon.
Changing band support on the "GSM" versions (including the international) is typically done by another method: getting s-off ($25 by sunshine app) and flashing another version's radio firmware (may also need to change CID). But even then, when the radio with the proper band support is flashed, we've seen cases where the user still is not able to get LTE service on their M8. I haven't seen a good explanation, and no fix for this. So the money spent on sunshine may be wasted.
Further, I don't know of any carrier version that natively supports LTE band 38. So I don't even know if there is a radio version for you to flash, in the first place.
http://www.gsmarena.com/htc_one_(m8)-6074.php
A further caution, if you choose to go the s-off route, is that changes made under s-off can be dangerous and even result in permanent damage. So be sure you know what you are doing, before proceeding.

Sim unlock options for GSM Variant

So, after searching the forum, I haven't found anything that really answers my question...
I have the GSM Variant of the HTC 10. It's currently locked to Bell Mobility in Canada. I am looking to unlock this phone without paying Bell the fees they charge for unlocking. From the XDA searches and reading I've done, it looks like there may be a free way of accomplishing this... I found a post that indicates that the Sprint method may or may not work, but you need S-Off...
I found another post that suggests its the exact same as the HTC One M9 and I can use the directions from there. It also indicated that it was only for the Sprint HTC 10 too...
My question is, is there a free unlock method for the GSM HTC 10? Or does it only work with the Sprint version?

According to some googlling, you share the same phone as US unlocked model, based on MID (model ID). You would need S-off to flash a different modem though. modem partition is blocked by s-on feature. sunshine app and java cards are the only way to S-off. both are paid though, sunshine $25.
CID: BM 001
MID: 2PS650000
proceed at your own risk and research well :good:

Right. I think I knew that... ...which means that changing the CID would allow me to flash any RUU for Model 2PS6500, and should theoretically work period.
Which leads to another question I had after posting... Would flashing the US Unlocked RUU remove the sim lock on the phone? I've heard that an RUU replaces everything on the phone with pristine, shiny new code straight from HTC... Would this also replace the code that effectively locks the phone to Bell?
If that is the case, this could be far too good to be true...
Edit: Almost forgot. Perhaps slightly off topic, but what is a java card?

atirox said:
Right. I think I knew that... ...which means that changing the CID would allow me to flash any RUU for Model 2PS6500, and should theoretically work period.
Which leads to another question I had after posting... Would flashing the US Unlocked RUU remove the sim lock on the phone? I've heard that an RUU replaces everything on the phone with pristine, shiny new code straight from HTC... Would this also replace the code that effectively locks the phone to Bell?
If that is the case, this could be far too good to be true...
Edit: Almost forgot. Perhaps slightly off topic, but what is a java card?
Click to expand...
Click to collapse
I've read that changing the MID/CID and flashing a modem is enough but.... since I can't quote it I cannot help you with that unfortunately. but should give you a running start, good luck

Thanks a bunch for the info. The thanks button didn't seem like enough thanks for the info.
Also, I'll post my procedures and results here, so if it doesn't work, at least we have a record.

atirox said:
Thanks a bunch for the info. The thanks button didn't seem like enough thanks for the info.
Also, I'll post my procedures and results here, so if it doesn't work, at least we have a record.
Click to expand...
Click to collapse
you're welcome and I just google searched quickly and didn't find anything solid but again I'm sure you'll figure out a way.

So, just an update.
I used a website that allowed me to use trialpay to get my SIM Lock code, which worked beautifully.
Unfortunately, Bell Mobility seems to be in the market of continuing to cripple their phones... I've inserted my Rogers sim card and found that voice and text both work on Rogers. Data, does not (cannot set APN settings, not don't know how), along with LTE. Given that the phone supports all the bands that Rogers uses in Canada, I would not be overly surprised to find out that Bell crippled the radio firmware to ensure that the phone would perform it's best only on the Bell network. Heck, they did it with the CDMA Nokia phones, and with the old school Blackberries to ensure their revenue stream...

atirox said:
So, just an update.
I used a website that allowed me to use trialpay to get my SIM Lock code, which worked beautifully.
Unfortunately, Bell Mobility seems to be in the market of continuing to cripple their phones... I've inserted my Rogers sim card and found that voice and text both work on Rogers. Data, does not (cannot set APN settings, not don't know how), along with LTE. Given that the phone supports all the bands that Rogers uses in Canada, I would not be overly surprised to find out that Bell crippled the radio firmware to ensure that the phone would perform it's best only on the Bell network. Heck, they did it with the CDMA Nokia phones, and with the old school Blackberries to ensure their revenue stream...
Click to expand...
Click to collapse
Maybe now is the time for that s-off and flashing of U.S Unlocked ruu.
The other thing you can try before spending the cash to s-off is unlocking your bootloader, flashing a custom rom and seeing if you can add a new apn from there. I'm very much surprised Bell would block that btw, I've unlocked Bell gsm phones and added new apn settings in the past.

While with XDA im all for free unlocking etc, if you are not S-off then it might be a bit hard
https://sim-unlock.net/site/HTC/10/
Ive had a stupid amount of phones and ive used these guys everytime ive needed a SIM unlock done.
Never failed once and if you can spend the money, it might be worth it in your case here... Against s-off - $25...
For me its a no brainer... I mean for 9 euros?....
But if you have already unlocked and they have crippled it like you say, then deffo go for s off

Fellas, correct me if I'm wrong, but if the SIM is unlocked, then all that's needed is to unlock the bootloader. That can be done for free via HTC Dev if you have tech chops, or via Sunshine (probably the better choice anyway). Then all that's needed is to change the CID and MID, and flash a WWE RUU. That would solve the problem, no?

BillTheCat said:
Fellas, correct me if I'm wrong, but if the SIM is unlocked, then all that's needed is to unlock the bootloader. That can be done for free via HTC Dev if you have tech chops, or via Sunshine (probably the better choice anyway). Then all that's needed is to change the CID and MID, and flash a WWE RUU. That would solve the problem, no?
Click to expand...
Click to collapse
Yeah that's what I was suggesting as well. Bootloader unlock and flash a custom rom first to see if he's able to add new apns that way, and if that fails just go full s-off and run the unlocked RUU (unlocked is the better option here over wwe, same mid I believe and better support for updates).

BillTheCat said:
Fellas, correct me if I'm wrong, but if the SIM is unlocked, then all that's needed is to unlock the bootloader. That can be done for free via HTC Dev if you have tech chops, or via Sunshine (probably the better choice anyway). Then all that's needed is to change the CID and MID, and flash a WWE RUU. That would solve the problem, no?
Click to expand...
Click to collapse
This is my thinking... I wanted the US Unlocked version anyway, but got the Bell one since I live in Canada, and was with Bell anyway. Actually, the SIM lock and the bootloader lock are two different locks. You don't have to remove the Simlock to remove the bootloader lock.
Tarima said:
Maybe now is the time for that s-off and flashing of U.S Unlocked ruu.
The other thing you can try before spending the cash to s-off is unlocking your bootloader, flashing a custom rom and seeing if you can add a new apn from there. I'm very much surprised Bell would block that btw, I've unlocked Bell gsm phones and added new apn settings in the past.
Click to expand...
Click to collapse
I thought about it, but in the end I want US Unlocked due to speediness of updates as well as no more Bell tainted android.
Here is why I suspect Bell blocked it... When I go to view available APN's, all it shows on screen is a message essentially saying APN's cannot be added for this provider.. Also (took me a bit to clue in), LTE doesn't work on Rogers. If I had to guess, Bell wanted to make sure all the HTC 10's it sold stayed on it's network. It wouldn't surprise me in the slightest... The Nokia 6275i was a kick butt awesome CDMA phone back in it's day. AMAZING call quality. Think VoLTE quality on 1xRTT. I don't know how they did it, but it must be a mix of pixie dust and unicorn blood... Anyway, every 6275i Bell sold was severely crippled. No Nokia Maps, just Bell's lame interpretation. Google maps wouldn't work either because it couldn't access the GPS, only Bells navigation app could. Couldn't set a custom ringtone unless it was purchased from Bell. Yet every other 6275i didn't suffer from these issues... Just ones sold by Bell.

So, an update to those interested....
I am now S-Off running US Unlocked firmware.
CID: BS_US001
MID: 2PS650000
Flashing to US Unlocked firmware seemed to do the trick for data. I can now set APNs and data does work. YAY!
Things to do:
1) Figure out why LTE signal sucks...
For whatever reason, the HTC 10 doesn't get LTE at home... I had a Samsung Galaxy S7 (SM-G930W8) briefly which didn't always get LTE at home, but it at least had useable signal, whereas the HTC 10 doesn't, at least not on Rogers. When flashed with Bell firmware it worked as good as the S7 did. I have a theory that when I ran the RUU to change firmware variants, it didn't update the modem firmware... Also, upon further research, it looks like there are partitions that store configuration data for the modem called modemst1 and modemst2, which I'd bet are still configured for Bell, which means they probably set it up to never use LTE on another Canadian network unless you can't get signal on anything else...
2) Figure out how to change Device Certification back to certified.
I'm pretty sure this is because the bootloader is still unlocked... I'm going to try setting it back to locked which shouldn't make a difference to my ability to flash because the phone is S-Off anyway but it may make the difference to Google's Device Certification
3) Maybe try an aftermarket rom, etc... Basically whatever I want.
I actually quite like HTC Sense... Not sure I want to get rid of it just yet. Was thinking of going with Viper due to Wi-Fi Calling being enabled/supported since Rogers supports Wi-Fi Calling, and I refuse to believe I can't make it work on here... It worked on the S7 (same model my wife had on Bell), so why can't it work here? I am also open to suggestions as to good roms to use, so if you think it's good, let me know what rom and why and I may just give it a shot...

atirox said:
So, an update to those interested....
I am now S-Off running US Unlocked firmware.
CID: BS_US001
MID: 2PS650000
Flashing to US Unlocked firmware seemed to do the trick for data. I can now set APNs and data does work. YAY!
Things to do:
1) Figure out why LTE signal sucks...
For whatever reason, the HTC 10 doesn't get LTE at home... I had a Samsung Galaxy S7 (SM-G930W8) briefly which didn't always get LTE at home, but it at least had useable signal, whereas the HTC 10 doesn't, at least not on Rogers. When flashed with Bell firmware it worked as good as the S7 did. I have a theory that when I ran the RUU to change firmware variants, it didn't update the modem firmware... Also, upon further research, it looks like there are partitions that store configuration data for the modem called modemst1 and modemst2, which I'd bet are still configured for Bell, which means they probably set it up to never use LTE on another Canadian network unless you can't get signal on anything else...
2) Figure out how to change Device Certification back to certified.
I'm pretty sure this is because the bootloader is still unlocked... I'm going to try setting it back to locked which shouldn't make a difference to my ability to flash because the phone is S-Off anyway but it may make the difference to Google's Device Certification
3) Maybe try an aftermarket rom, etc... Basically whatever I want.
I actually quite like HTC Sense... Not sure I want to get rid of it just yet. Was thinking of going with Viper due to Wi-Fi Calling being enabled/supported since Rogers supports Wi-Fi Calling, and I refuse to believe I can't make it work on here... It worked on the S7 (same model my wife had on Bell), so why can't it work here? I am also open to suggestions as to good roms to use, so if you think it's good, let me know what rom and why and I may just give it a shot...
Click to expand...
Click to collapse
FYI you can clear the modem settings using the following from bootloader mode:
fastboot erase modemst1
fastboot erase modemst2

Tarima said:
FYI you can clear the modem settings using the following from bootloader mode:
fastboot erase modemst1
fastboot erase modemst2
Click to expand...
Click to collapse
I tried with HTC_fastboot and normal fastboot but:
Code:
htc_fastboot v3.0.9.2 (2015-05-29)
erasing 'modemst2'...
FAILED (remote: Partition modemst2 erase not supported)
finished. total time: 0.001s
htc_fastboot finished. total time: 0.235s

nightauthor said:
I tried with HTC_fastboot and normal fastboot but:
Click to expand...
Click to collapse
From bootloader mode?

Tarima said:
From bootloader mode?
Click to expand...
Click to collapse
Yeah, I found the bootloader thing in another thread, thanks for the follow up though.

I've tried flashing US Unlocked, was prompted for a sim unlock code when I put a Verizon sim in my Tmobile phone.
So I tried flashing Verizon firmware, it told me that my verizon sim... was not a verizon sim.
Did the modem reset, didnt make a difference. Not sure what else to try.

Updates
So, as an update to any parties interested,
I've resolved some of the data issues I was having, where data didn't seem to work unless I was using LTE.
It seems that it's a joint problem between me and Rogers.
My problem was that even though the US Unlocked variant appears to be using the same radio firmware as the Bell variant, the Bell variant seems to have better programming, since I've been getting stronger signal in more areas, as well as slightly better throughput on HSPA connections. The issue I had with APN's and Bell firmware seemed to sort its self out after flashing back to the Bell variant from US Unlocked.
The Rogers end of the problem, is the Rogers network in Manitoba appears to have been a joint venture between Rogers and MTS, prior to MTS being bought out by Bell Mobility. Now that Bell has taken control of MTS, it sounds like Bell realized a lot of the MTS equipment was outdated, and has been attempting upgrades, which seem to be causing more problems than what they're worth. A co-worker is with MTS, and has been having a heck of a time with all of his services from MTS, and the technician's he's spoken to have led on to some deeper issues than what he's seeing. I would imagine that since the agreement was between Rogers and MTS originally, that Bell will have to honor that agreement for at least some time, which (to me) says that my HSPA data slowness could be due to Bell attempting to update the shared hardware between MTS and Rogers.
nightauthor said:
I've tried flashing US Unlocked, was prompted for a sim unlock code when I put a Verizon sim in my Tmobile phone.
So I tried flashing Verizon firmware, it told me that my verizon sim... was not a verizon sim.
Did the modem reset, didnt make a difference. Not sure what else to try.
Click to expand...
Click to collapse
I'm not sure that flashing the VZW firmware would write to RFG_8 (the simlock partition)... If that simlock partition hasn't been rewritten, you're phone is likely still locked to T-Mobile, but with no way to unlock it though the VZW firmware since AFAIK T-Mobile uses an app to remove the simlock. The modem reset would only reset the parameters of the modem, not remove the sim lock...