Develop Bugs

T-Mobile M8 patch 4 Verizon M8

Is there a patch to make my vzw M8 work like it was a native Tmo M8?

No. Hardware is different.
Verizon has CDMA chipset and the TMO verison is a GSM chipset.

IAmSixNine said:
No. Hardware is different.
Verizon has CDMA chipset and the TMO verison is a GSM chipset.
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That's not true...
My phone is Fully unlocked and gets everything from Edge to Legit LTE.
My phone works. I just need it to work a bit better.

And the reason you want it to work better is because its not the correct version for the carrier you want it to work on.
http://www.gsmarena.com/compare.php3?idPhone1=6233&idPhone2=6074
The bands are almost identical with the Verizon unit missing 1700mhz on the HSDPA side.
Either way if you want it to work like its supposed to get the branded one. Unlocking will work but in most cases something is always missing.
could be specific software, or the way the device works with the network, or an entire band or what ever.
Bottom line is ditch the unlocked verizon and go with a branded tmobile unit.

ericerk said:
That's not true...
My phone is Fully unlocked and gets everything from Edge to Legit LTE.
My phone works. I just need it to work a bit better.
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Click to collapse
Since you seem to already know the answer then go ahead and flash a tmobile or any other gsm rom to your phone and see how fast you brick it.

IAmSixNine said:
And the reason you want it to work better is because its not the correct version for the carrier you want it to work on.
http://www.gsmarena.com/compare.php3?idPhone1=6233&idPhone2=6074
The bands are almost identical with the Verizon unit missing 1700mhz on the HSDPA side.
Either way if you want it to work like its supposed to get the branded one. Unlocking will work but in most cases something is always missing.
could be specific software, or the way the device works with the network, or an entire band or what ever.
Bottom line is ditch the unlocked verizon and go with a branded tmobile unit.
Click to expand...
Click to collapse
Now that makes sense.
What a bummer.

Using CyanogenMod M9 with Verizon M8 on Tmobile
I have found that this works pretty well for me. CyanogenMod 11 M9 (I cant link to it, forum wont allow me to)
I have not had any issues with that build using a Verizon M8 on the Tmobile network.

WiFi calling on non-branded M8

I'm considering switching from ATT, but my understanding is that wifi calling is only available with TMO branded phones. Mine is the factory unlocked model (BS_US001/0P6B12000). I'm SuperCID, so was wondering if I could emulate a TMO phone by flashing their RUU. Would I have to change my MID (if that is even possible)?

bruce7373 said:
I'm considering switching from ATT, but my understanding is that wifi calling is only available with TMO branded phones. Mine is the factory unlocked model (BS_US001/0P6B12000). I'm SuperCID, so was wondering if I could emulate a TMO phone by flashing their RUU. Would I have to change my MID (if that is even possible)?
Click to expand...
Click to collapse
yes change the mid then u can flash there ruu

[email protected] said:
yes change the mid then u can flash there ruu
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Click to collapse
Did u try this yet ?
I have a vas m8 running on tmo and in the viperone threads in the general HTC one m8 section, j to the an, said if I tried something like that it would go for a hard brick easy. But my be cuz my phone is a cdma variant? Who knows. I just ask.
Sent from my HTC One_M8 using XDA Free mobile app

There are a few custom ROMs that allow TMO WiFi calling. I know, and have tested, both Viper and Sky Dragon. While they are obviously not stock, they both work on my BS_US002.

Just flash T-MO RUU after SuperCid'ing. I have the same terminal and got around that issue following those steps!. Remember to do your backups.

rpimentel1 said:
Just flash T-MO RUU after SuperCid'ing. I have the same terminal and got around that issue following those steps!. Remember to do your backups.
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I was assuming you has a gsm varient when I said change the mid then flash their ruu. At&t and t-mobile are gsm, Verizon and Sprint varients are cdma . Never mix gsm and cdma anything,if your varient is cdma don't bother looking at gsm formums at all

[email protected] said:
I was assuming you has a gsm varient when I said change the mid then flash their ruu. At&t and t-mobile are gsm, Verizon and Sprint varients are cdma . Never mix gsm and cdma anything,if your varient is cdma don't bother looking at gsm formums at all
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op is AT&T (GSM) wants to emulate TMO (GSM) as well. what are you talking about?

rpimentel1 said:
op is AT&T (GSM) wants to emulate TMO (GSM) as well. what are you talking about?
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Taking about me. Cuz I'm vzw and AT&T is gsm. I forgot bout that, duh... But I am able to run gsm type Rom with little to no problem....I'm just looking to see how I can enable all gsm lte bands for use. I try to drive and between towers I lose signal and can't reconnect, so I either have to toggle airplane to get it back, or just use hspa. It runs ok... But I'd like to get full potential.
Sent from my HTC One_M8 using XDA Free mobile app

rpalmerin said:
Taking about me. Cuz I'm vzw and AT&T is gsm. I forgot bout that, duh... But I am able to run gsm type Rom with little to no problem....I'm just looking to see how I can enable all gsm lte bands for use. I try to drive and between towers I lose signal and can't reconnect, so I either have to toggle airplane to get it back, or just use hspa. It runs ok... But I'd like to get full potential.
Sent from my HTC One_M8 using XDA Free mobile app
Click to expand...
Click to collapse
Sounds like some sort of Kernel incompatibility, have you tried reinstalling everything from scratch?

rpalmerin said:
Taking about me. Cuz I'm vzw and AT&T is gsm. I forgot bout that, duh... But I am able to run gsm type Rom with little to no problem....I'm just looking to see how I can enable all gsm lte bands for use. I try to drive and between towers I lose signal and can't reconnect, so I either have to toggle airplane to get it back, or just use hspa. It runs ok... But I'd like to get full potential.
Sent from my HTC One_M8 using XDA Free mobile app
Click to expand...
Click to collapse
A Cdma varient never can be full potential of the gsm varient. i use to have the sprint varient and i unlocked it to tmobile, yes it worked, but it wouldnt stay connected to tmobile, i would constantly have to manually search for tmobile network, so if i never looked at my phone it would just disconnect by itself, i received calls fine but text messages would come once i connected to tmobile again.
plus the hardware is just not capable of all the gsm bands, so to get full potential, sell it and get a gsm one

Can I use the H/K Sprint M8 on T-Mobile and get LTE?

Looked around and not sure if this is even possible. Could I get a H/K M8, unlock it and use on T-Mobile's network to receive LTE? Thanks!

Is there a reason why you are looking at the Sprint version?
Its been argued whether the CDMA versions of the M8 are any different in hardware, but I haven't seen anything definitive either way. I'd err on the side of caution, assume the CDMA version is different hardware, and stay away from it. Buy any GSM version and you can convert it to work on T-Mobile (after s-off, unlocking the bootloader, etc.), no question there.

quailallstar said:
Looked around and not sure if this is even possible. Could I get a H/K M8, unlock it and use on T-Mobile's network to receive LTE? Thanks!
Click to expand...
Click to collapse
no, Sprint version got some weird **** to it...

redpoint73 said:
Is there a reason why you are looking at the Sprint version?
Its been argued whether the CDMA versions of the M8 are any different in hardware, but I haven't seen anything definitive either way. I'd err on the side of caution, assume the CDMA version is different hardware, and stay away from it. Buy any GSM version and you can convert it to work on T-Mobile (after s-off, unlocking the bootloader, etc.), no question there.
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The only reason I'm looking for the Sprint version is because of the look. I like the dark back metal and gold upfront a lot. Sucks its an exclusive look only to Sprint. I read that you can flash the other non H/K models to have the same software so that is confirmed and all good.
Now I need to find someone who is using this Sprint model and can confirm it has the needed GSM radio(s) for TMO LTE.

quailallstar said:
The only reason I'm looking for the Sprint version is because of the look. I like the dark back metal and gold upfront a lot. Sucks its an exclusive look only to Sprint. I read that you can flash the other non H/K models to have the same software so that is confirmed and all good.
Now I need to find someone who is using this Sprint model and can confirm it has the needed GSM radio(s) for TMO LTE.
Click to expand...
Click to collapse
I'm pretty sure that Sprint models are CDMA only. You can't use their phones on GSM networks. I don't think what you are trying to do will work. I may be wrong here, but I really doubt I am.

xunholyx said:
I'm pretty sure that Sprint models are CDMA only. You can't use their phones on GSM networks. I don't think what you are trying to do will work. I may be wrong here, but I really doubt I am.
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This is incorrect (that the Sprint variant does not work on GSM). Both the Verizon and Sprint variants support GSM and CDMA. Folk on here (including myself) tend to refer to them as "CDMA" for simplicity; but they are in fact also compatible with GSM, as well as HSPA, LTE.
http://www.gsmarena.com/htc_one_(m8)_cdma-6233.php
Now the question is whether the difference between the GSM and "CDMA" variants are purely in software, or there is an actual hardware difference. Its been argued both way, and I haven't seen any proof either way (although my gut tells me the latter is the case). And the question relevant to the OP is whether the T-Mobile LTE bands can be "added" to the Sprint device by software.

I used a verizon LG g2 on T-mobile a few and the phone im writing on now is a verizon iPhone full lte but i dont know aboit the sprint versions

LTE?

My phone fully supports LTE,even the sim card i use is 4G compatible,but somehow i'm not able to use it.And yes,i'm in LTE covering area.Any ideas?

Was LTE working for you before?
What I recommend first is to try your sim on another lte capable phone and/or sim with working lte on your phone

RaZaR1998 said:
My phone fully supports LTE
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Click to collapse
How do you know this? There is no M8 version that supports all LTE bands in all regions.Every M8 version supports different LTE bands, based on the region/version (carrier ID).
In particular, if you are using an M8 version intended for another region, it may be difficult of impossible to make it work on LTE on your local carrier's network.

redpoint73 said:
How do you know this? There is no M8 version that supports all LTE bands in all regions.Every M8 version supports different LTE bands, based on the region/version (carrier ID).
In particular, if you are using an M8 version intended for another region, it may be difficult of impossible to make it work on LTE on your local carrier's network.
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Click to collapse
My M8 is T-MOB version.Maybe ,,transforming" to EU can fix that?

RaZaR1998 said:
My M8 is T-MOB version.Maybe ,,transforming" to EU can fix that?
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Click to collapse
What bands or bands does your carrier use for LTE?
Which T-Mobile version? US or Europe?

redpoint73 said:
What bands or bands does your carrier use for LTE?
Which T-Mobile version? US or Europe?
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Click to collapse
LTE B3 (1800 +).Not sure if it is EU or US

What OS number in bootloader? Does it say s-of or s-off in bootloader?
Assuming it is T-Mob US (which would be more common than T-Mob Europe): As I already said, making LTE work on a device that is intended for another region can be difficult, or even impossible. You would need s-off to "convert" it to EU. S-off (if it isn't already) can only be achieved with sunshine, which costs $25. And it may be money wasted, since a lot of times, we've seen when the M8 is converted to another version, LTE will still not connect to the local carrier's network.

redpoint73 said:
What OS number in bootloader? Does it say s-of or s-off in bootloader?
Assuming it is T-Mob US (which would be more common than T-Mob Europe): As I already said, making LTE work on a device that is intended for another region can be difficult, or even impossible. You would need s-off to "convert" it to EU. S-off (if it isn't already) can only be achieved with sunshine, which costs $25. And it may be money wasted, since a lot of times, we've seen when the M8 is converted to another version, LTE will still not connect to the local carrier's network.
Click to expand...
Click to collapse
I'm S-Off(written the same way in bootloader).So at least it's worth a shot.

Verizon variant on AT&T, no LTE even with APN settings and LTE simcard?

The subject says it all, really. I bought a used HTC 10 on ebay. Like many of them, it is Verizon branded, but I had read that it should support all US LTE bands? The model # on it is HTC6545L, sku HTC6545LVW and FCC ID NM82PS6500.
No dice so far. I input the APN settings from here, and that got me from voice-only to HSPA+. No LTE, though.
The sim card came right out of my HTC M8, which is always on LTE at the same location, using the same card.
Could I get it working by flashing different firmware or an RUU?
Any help greatly appreciated.

Nathan2 said:
The subject says it all, really. I bought a used HTC 10 on ebay. Like many of them, it is Verizon branded, but I had read that it should support all US LTE bands? The model # on it is HTC6545L, sku HTC6545LVW and FCC ID NM82PS6500.
No dice so far. I input the APN settings from here, and that got me from voice-only to HSPA+. No LTE, though.
The sim card came right out of my HTC M8, which is always on LTE at the same location, using the same card.
Could I get it working by flashing different firmware or an RUU?
Any help greatly appreciated.
Click to expand...
Click to collapse
If you are SOFF, Convert the phone to US Unlocked

aer0zer0 said:
If you are SOFF, Convert the phone to US Unlocked
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Click to collapse
Whoops, I had assumed I could just use Sunshine but it looks like the only way to S-OFF is to physically mail the phone in to the devs!
Are you certain, that converting the phone is all I need to use the AT&T LTE bands? If so, I can do S-OFF by mail, whatever, but otherwise I might still be able to return it to the seller, dunno.
I guess there's no way to verify without S-OFF, that LTE works?
Thanks very much!

Nathan2 said:
Whoops, I had assumed I could just use Sunshine but it looks like the only way to S-OFF is to physically mail the phone in to the devs!
Are you certain, that converting the phone is all I need to use the AT&T LTE bands? If so, I can do S-OFF by mail, whatever, but otherwise I might still be able to return it to the seller, dunno.
I guess there's no way to verify without S-OFF, that LTE works?
Thanks very much!
Click to expand...
Click to collapse
conversion 100% works, and is better served if your going to be using predominately GSM sims... I thought hspa+ was lte though

aer0zer0 said:
conversion 100% works, and is better served if your going to be using predominately GSM sims... I thought hspa+ was lte though
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Click to collapse
Awesome, thanks, I hope @jcase is accepting more mail in orders right now.
Nah, HSPA and HSPA+ are kind of "3.5G." You can tell the difference when it displays an H or H+ in the status bar, instead of the usual 4G or LTE icon, and also because it's significantly slower. It does still work in some areas where LTE doesn't, though, and is still way better than 3G.

I was on Verizon when I got my HTC 10, so it's a Verizon branded phone. I unlocked it with Sunshine.
When I decided to switch to Metro PCS which is basically budget TMobile, I changed the CID to super CID, flashed the TMobile RUU and popped in the Metro PCS Sim and it's worked great, wifi calling, etc.
I'm still on Metro PCS but I am currently running the LeeDroid ROM.

Nathan2 said:
Whoops, I had assumed I could just use Sunshine but it looks like the only way to S-OFF is to physically mail the phone in to the devs!
Are you certain, that converting the phone is all I need to use the AT&T LTE bands? If so, I can do S-OFF by mail, whatever, but otherwise I might still be able to return it to the seller, dunno.
I guess there's no way to verify without S-OFF, that LTE works?
Thanks very much!
Click to expand...
Click to collapse
I am certain it works because I have an unlocked htc 10 with s-off and I can use verizon if I flash the verizon radio on my phone. But right now I'm using at&t