Develop Bugs

HTC One m8 variants

Hi guys,
Planning to buy the m8 and root it. But should I be specific on the variants?
Im not from the US (The Philippines) so Most likely not gonna get atnt, sprint etc.
So my options are:
The international model
Emea (a friend of mine is selling his but it was bought in riyad, KSA)
Or the asian version (s801 2.5ghz)
Do they have like different model nos.? Different ruus / rom versions etc?
Had a bad experience when i bought a phone (m7 sprint wls) before, since im not from the us. Had limited roms available compared to the international version
Your input would really help
Sent from my HTC One

I would agree that you should not get a US variant. For one thing, they will be SIM locked. Another thing, the Sprint and Verizon versions are CDMA. Different software, and possibly different hardware (although its been discussed here, and not clear - but I would err on the side of caution and assume the hardware is different). So if your area does not use CDMA I would stay away from those variants.
All GSM versions, be aware that they can all be converted to another carrier variant once bootloader unlocked and S-off. So as long as you avoid the CDMA versions, you are good for ROMs.
I would suggest the version that supports your local 3G and LTE bands out of the box. But again, as long as you are willing to s-off the phone, you can change that in software. So if that is the case, I would just go with the best deal.
From what I understand, the Asian version is the same as any other GSM version, just with a slight overclock.

Well if you do go with a us carrier Verizon has the best coverage and thier phones are :not: sim locked. You can use them with any carrier anywhere. My second choice would be t-mobile

str8str said:
Well if you do go with a us carrier Verizon has the best coverage
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Click to collapse
The OP is from the Philippines. They aren't going to use a US carrier.
I would advise against CDMA variants for the reasons already mentioned.

redpoint73 said:
The OP is from the Philippines. They aren't going to use a US carrier.
I would advise against CDMA variants for the reasons already mentioned.
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Click to collapse
Thanks guys, I just want to be clear, so if I use a Rom or RUU on a GSM variant, as long as Im'm on S-Off / Unlocked Bootloader and/ or on SuperCID. I could use any Rom ./ RUU from different GSM variants (I checked the rooting guide for the M8 and is similar to the M7, so as far as unlocking the bootloader / root that I have an idea).
Do they have different RUUs at all??

Czai24 said:
I just want to be clear, so if I use a Rom or RUU on a GSM variant, as long as Im'm on S-Off / Unlocked Bootloader and/ or on SuperCID.
Click to expand...
Click to collapse
Yes.
Aside from the CDMA RUUs, which I wouldn't try on a GSM version unless you read definitive advice elsewhere that its ok.
Czai24 said:
Do they have different RUUs at all??
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Click to collapse
Only US versions have RUU, that I know of.

Yes you're right.
I thought all has ruus on it. But with supercid i could use any nandroid backup right? As long as its gsm
I think I will go for the Asian version (wwe right? Cause it has a higher clockspeed and updated s801) And go supercid and use international (gsm) roms. Will that work?
Sent from my HTC One

Czai24 said:
with supercid i could use any nandroid backup right? As long as its gsm
I think I will go for the Asian version (wwe right? Cause it has a higher clockspeed and updated s801) And go supercid and use international (gsm) roms. Will that work?
Click to expand...
Click to collapse
I believe that will work, yes.
WWE just means "world wide English". I think it refers to the Euro version.

HTC One M8 of Choice?

I am looking to buy an HTC One M8, which would the community recommend? I am on AT&T but I love to root, and install CM, and other ROMS to any phone I own. Which Variant would be best for me? Or are they all supported under CM and custom recoveries? Thanks!
Also if anyone has one on the cheap let me know

lemonboi5 said:
I am looking to buy an HTC One M8, which would the community recommend? I am on AT&T but I love to root, and install CM, and other ROMS to any phone I own. Which Variant would be best for me? Or are they all supported under CM and custom recoveries? Thanks!
Also if anyone has one on the cheap let me know
Click to expand...
Click to collapse
The M9 is due out soon, might wait for that one.

Hondo209 said:
The M9 is due out soon, might wait for that one.
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Click to collapse
I was thinking about that, the problem is I always end up getting a phone a generation behind the newest thing! Lol m9 looks amazing though!!

lemonboi5 said:
I am looking to buy an HTC One M8, which would the community recommend? I am on AT&T but I love to root, and install CM, and other ROMS to any phone I own. Which Variant would be best for me? Or are they all supported under CM and custom recoveries? Thanks!
Also if anyone has one on the cheap let me know
Click to expand...
Click to collapse
For the most part, I'd say whatever variant you can get for a good price. All the M8's (known as "GSM M8") are the same hardware internally aside from the following exceptions:
1) Dual SIM M8
2) Verizon/Sprint variants. These include CDMA radio, so different hardware. No benefit for you on AT&T, and less selection of ROMs.
3) Taiwan variant. Hardware is the same, but its overclocked out of the box. Some software from the other M8 versions won't work on this variant (including radios).
Aside from the variants above, all the M8 versions are essentially the same hardware, with minor differences of exterior color availability, and carrier logos on the back of some. Once bootloader is unlocked (and preferably s-off) you can flash CM to any of the versions.
One thing to note, AFAIK any M8 that has hboot 3.19 cannot be s-off by sunshine (and that is the only s-off method). Band compatibility for the various carriers/regions is software based on the M8. However, if you need to flash the radio to change band compatibility on a non-AT&T M8 variant, you will need s-off to do so. So unless you have a way of knowing what hboot is on the version you are buying, I tend to say that you might want to choose either the AT&T version or Dev Edition, to guarantee band compatibility on AT&T's network. Both of which fully support AT&T bands out of the box.

redpoint73 said:
For the most part, I'd say whatever variant you can get for a good price. All the M8's (known as "GSM M8") are the same hardware internally aside from the following exceptions:
1) Dual SIM M8
2) Verizon/Sprint variants. These include CDMA radio, so different hardware. No benefit for you on AT&T, and less selection of ROMs.
3) Taiwan variant. Hardware is the same, but its overclocked out of the box. Some software from the other M8 versions won't work on this variant (including radios).
Aside from the variants above, all the M8 versions are essentially the same hardware, with minor differences of exterior color availability, and carrier logos on the back of some. Once bootloader is unlocked (and preferably s-off) you can flash CM to any of the versions.
One thing to note, AFAIK any M8 that has hboot 3.19 cannot be s-off by sunshine (and that is the only s-off method). Band compatibility for the various carriers/regions is software based on the M8. However, if you need to flash the radio to change band compatibility on a non-AT&T M8 variant, you will need s-off to do so. So unless you have a way of knowing what hboot is on the version you are buying, I tend to say that you might want to choose either the AT&T version or Dev Edition, to guarantee band compatibility on AT&T's network. Both of which fully support AT&T bands out of the box.
Click to expand...
Click to collapse
Right so, Verizon M8 wouldn't work on AT&T? That sucks. I knew Sprint wouldn't but Verizon is nearly compatible with AT&T by now, so thats sad lol
The best price is the Sprint variant, but thats because sprint phones do not have high resell value at all. People hate to deal with them completely and that solely makes the value go down...
I have not looked at the other variants but I will check them out! Thank you! I repaired a One today, It was a lot of work, but nearly any HTC Phone never looks or feels the same after a screen repair, because of that uni body.

redpoint73 said:
For the most part, I'd say whatever variant you can get for a good price. All the M8's (known as "GSM M8") are the same hardware internally aside from the following exceptions:
1) Dual SIM M8
2) Verizon/Sprint variants. These include CDMA radio, so different hardware. No benefit for you on AT&T, and less selection of ROMs.
3) Taiwan variant. Hardware is the same, but its overclocked out of the box. Some software from the other M8 versions won't work on this variant (including radios).
Aside from the variants above, all the M8 versions are essentially the same hardware, with minor differences of exterior color availability, and carrier logos on the back of some. Once bootloader is unlocked (and preferably s-off) you can flash CM to any of the versions.
One thing to note, AFAIK any M8 that has hboot 3.19 cannot be s-off by sunshine (and that is the only s-off method). Band compatibility for the various carriers/regions is software based on the M8. However, if you need to flash the radio to change band compatibility on a non-AT&T M8 variant, you will need s-off to do so. So unless you have a way of knowing what hboot is on the version you are buying, I tend to say that you might want to choose either the AT&T version or Dev Edition, to guarantee band compatibility on AT&T's network. Both of which fully support AT&T bands out of the box.
Click to expand...
Click to collapse
I have a question. Does T-Mo work with WWE firmware. I'm unsure of this, and have never looked it up. I know that AT&T versions are compatible with 401 firmware. Is T-Mo the same?

redpoint73 said:
...One thing to note, AFAIK any M8 that has hboot 3.19 cannot be s-off by sunshine (and that is the only s-off method). ...
Click to expand...
Click to collapse
but you could check with the seller if it is S-OFF already (as you can be S-OFF with 3.19 if it was already done) if thats what you are going to do anyway.

lemonboi5 said:
Right so, Verizon M8 wouldn't work on AT&T? That sucks. I knew Sprint wouldn't but Verizon is nearly compatible with AT&T by now, so thats sad lol
Click to expand...
Click to collapse
Verizon variant will work on AT&T GSM and HSPA network (in addition to being SIM-unlocked out of the box); however, it doesn't have all the LTE bands to work on AT&T in all regions. And while the "GSM" variants can have radio software flashed to change band compatibility, you can't do this on the "CDMA" variants (at least you can't flash a GSM radio on a CDMA variant to open up all the needed LTE bands).
Similar situation on Sprint version. Except I think the Sprint comes SIM locked out of the box (you will need to get it SIM unlocked). And also the LTE bands are different from the Verizon version, but still not all the bands needed to work on AT&T in all regions.
My point in highlighting the hardware difference (CDMA versus GSM variants) is not only are the radio basebands not interchangeable (as mentioned) but neither are the ROMs. For the CDMA versions, you should only flash ROMs that specify that version is supported. The GSM versions can flash any of the GSM ROMs, and there is a much wider selection.
Again, there isn't a benefit to either of the CDMA variants (for use on AT&T), and several critical downsides, so I generally don't recommend them to basically any user that isn't on the specific carrier (Verizon or Sprint).
---------- Post added at 09:28 AM ---------- Previous post was at 09:24 AM ----------
gazzacbr said:
but you could check with the seller if it is S-OFF already (as you can be S-OFF with 3.19 if it was already done) if thats what you are going to do anyway.
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Click to collapse
True, if the device is being sold second hand, you can (and should) always check to see if its already s-off.
---------- Post added at 09:37 AM ---------- Previous post was at 09:28 AM ----------
xunholyx said:
I have a question. Does T-Mo work with WWE firmware. I'm unsure of this, and have never looked it up. I know that AT&T versions are compatible with 401 firmware. Is T-Mo the same?
Click to expand...
Click to collapse
Aside from the exceptions previously listed, all GSM M8's are the same hardware, and firmware should be interchangeable (with s-off). T-Mobile version should be able to flash WWE firmware. Although, if you want to be prudent, you can check and confirm to see if any T-Mobile owners have done so successfully.

best radio for telus/koodo

Hi just purchased a used Verizon m8 and i did the s-off and installed a few custom ROMs but I get dropped and weak signal every now and then. Just wondering what the best radio to use for telus/koodo. Thanks.
I am on cm 12.1 great ROM. My radio 1.12.23.1211

vhicke said:
Hi just purchased a used Verizon m8 and i did the s-off and installed a few custom ROMs but I get dropped and weak signal every now and then. Just wondering what the best radio to use for telus/koodo. Thanks.
I am on cm 12.1 great ROM. My radio 1.12.23.1211
Click to expand...
Click to collapse
You did no research. You shouldn't have bought that phone.
Verizon is cdma. Telus is GSM.
I'm on Telus as well using WWE/International firmware.

Telus/koodo and bell in Canada are also a CDMA/gsm company. This phone should have no problems with telus/koodo. How is the wwe firmware do you see a difference in signal. Is your phone root and are you using any custom ROMs.

vhicke said:
Telus/koodo and bell in Canada are also a CDMA/gsm company. This phone should have no problems with telus/koodo. How is the wwe firmware do you see a difference in signal. Is your phone root and are you using any custom ROMs.
Click to expand...
Click to collapse
Click this link, and scroll down to "So can I use my Android device on other networks?" (Actually you should read the whole article. It's quite informative.)
I'll quote the second paragraph from there for you here:
First off, if you have a CDMA handset (the lack of a SIM card is a sure fire indicator) from Bell/Virgin or TELUS/Koodo (that isn't a world phone) or from the US (Sprint/Verizon), it is impossible to use the phone on a Canadian network other than the one it came from as Bell and TELUS does not allow the import CDMA devices from outside their network.
I'll say it again, you didn't do proper research. If you would have bought a GSM phone, you wouldn't be having this issue.
The link also has a chart that shows the compatible carriers for the different bands/frequencies that are available.

Can I modify or set up a band from my htc one m8 (at&t)??

Hello there guys, im wondering if it is possible to unlock a band from my htc one m8 from at&t, i live in venezuela and my current company (Digitel) the 3g band is 900, but this phone only have the 3g band on 850, my question is can i unlock this by any chances because is annoying that my phone is from E to 4G and manually i can even recive calls when its 4G and it wont change to 3g
(sorry about my english)

You need s-off by sunshine (if not s-off already). Then you can flash another version's radio/firmware to enable the desired band(s).
May also need to change CID and MID (after s-off) if the firmware is signed.

redpoint73 said:
You need s-off by sunshine (if not s-off already). Then you can flash another version's radio/firmware to enable the desired band(s).
May also need to change CID and MID (after s-off) if the firmware is signed.
Click to expand...
Click to collapse
thanks for the reply
i have already s-off my device but im kinda noob in this what firmware do u recommend to actually have this thing working

mabf000 said:
i have already s-off my device but im kinda noob in this what firmware do u recommend to actually have this thing working
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Click to collapse
According to the following specs, Euro or Asia firmware should support 3G 900 MHz: http://www.gsmarena.com/htc_one_(m8)-6074.php
Although, keep in mind you should also verify the LTE (4G) band used by the carrier is also supported by the version's firmware you pick. You didn't state what band your carrier uses for LTE.
Also, it should be kept in mind, anytime you purchase a phone from a 3rd party source (other than your carrier) you need to do the proper research to verify the device actually supports your carrier's network. You're lucky this time (if you get the proper bands working). This is the first smartphone chipset that allows band support to be changed in software. On previous smartphones (and may also be true on other current smartphones using other chipsets), band support was set in hardware, meaning there is no way to change it.

redpoint73 said:
According to the following specs, Euro or Asia firmware should support 3G 900 MHz: http://www.gsmarena.com/htc_one_(m8)-6074.php
Although, keep in mind you should also verify the LTE (4G) band used by the carrier is also supported by the version's firmware you pick. You didn't state what band your carrier uses for LTE.
Also, it should be kept in mind, anytime you purchase a phone from a 3rd party source (other than your carrier) you need to do the proper research to verify the device actually supports your carrier's network. You're lucky this time (if you get the proper bands working). This is the first smartphone chipset that allows band support to be changed in software. On previous smartphones (and may also be true on other current smartphones using other chipsets), band support was set in hardware, meaning there is no way to change it.
Click to expand...
Click to collapse
thanks, my carrier uses band 3 (1800MHz) for LTE and for 3g uses band 8 (900MHz) so what firmware do you recommend?

mabf000 said:
thanks, my carrier uses band 3 (1800MHz) for LTE and for 3g uses band 8 (900MHz) so what firmware do you recommend?
Click to expand...
Click to collapse
Same as I've already stated, EMEA (Euro) or Asia supports both those bands.
EMEA is a very common (probably most common) version on this forum, so that may be your best bet as far as ease of getting the files, fellow user support, etc.

redpoint73 said:
Same as I've already stated, EMEA (Euro) or Asia supports both those bands.
EMEA is a very common (probably most common) version on this forum, so that may be your best bet as far as ease of getting the files, fellow user support, etc.
Click to expand...
Click to collapse
OK i have the AT&T htc one m8 with this stock firmware (3.42.502.1)
so if i get the s-off thing, can i install the Unlocked/Developer ROM that is (6.12.1540.4) and get the bands i want?
im looking the roms in this web (http://www.htc.com/us/support/rom-downloads.html)

mabf000 said:
OK i have the AT&T htc one m8 with this stock firmware (3.42.502.1)
so if i get the s-off thing, can i install the Unlocked/Developer ROM that is (6.12.1540.4) and get the bands i want?
Click to expand...
Click to collapse
NO. The Developer version is US, not Euro or Asia. Why do you think the Dev Edition has the bands you want, or corresponds to the Euro or Asia versions?
The Dev Edition has the exact same band support as the AT&T version, so this is the exact opposite of what you want (doesn't have the bands you want).
Euro firmware is probably what I would recommend (as previously stated), and can be found on the following threads (as well as other places):
http://forum.xda-developers.com/showthread.php?t=2696282
http://forum.xda-developers.com/htc-one-m8/development/one-firmware-4-16-401-13-noredtext-t3233629
Follow the instructions as applicable, for changing CID and MID (after s-off).

redpoint73 said:
NO. The Developer version is US, not Euro or Asia. Why do you think the Dev Edition has the bands you want, or corresponds to the Euro or Asia versions?
The Dev Edition has the exact same band support as the AT&T version, so this is the exact opposite of what you want (doesn't have the bands you want).
Euro firmware is probably what I would recommend (as previously stated), and can be found on the following threads (as well as other places):
http://forum.xda-developers.com/showthread.php?t=2696282
http://forum.xda-developers.com/htc-one-m8/development/one-firmware-4-16-401-13-noredtext-t3233629
Follow the instructions as applicable, for changing CID and MID (after s-off).
Click to expand...
Click to collapse
I did all the things you say and i installed this RUU_M8_UL_L50_SENSE60_MR_hTC_Asia_WWE_4.19.707.2_Radio_1.25.21331147A1.06G_20.69.4196.01_F_release_414204_signed
im going to test now to see if my phone gets 3g

redpoint73 said:
NO. The Developer version is US, not Euro or Asia. Why do you think the Dev Edition has the bands you want, or corresponds to the Euro or Asia versions?
The Dev Edition has the exact same band support as the AT&T version, so this is the exact opposite of what you want (doesn't have the bands you want).
Euro firmware is probably what I would recommend (as previously stated), and can be found on the following threads (as well as other places):
http://forum.xda-developers.com/showthread.php?t=2696282
http://forum.xda-developers.com/htc-one-m8/development/one-firmware-4-16-401-13-noredtext-t3233629
Follow the instructions as applicable, for changing CID and MID (after s-off).
Click to expand...
Click to collapse
hi how are you? well finally i got to update the firmware and everything but i cant get my phone on 3g, I dont know what when wrong or i dont know if i did something wrong.
What should i do know to test the bands
this is the info on the bootloader
*** Software status: Official ***
*** UNLOCKED ***
M8_UL_CA PVT S-OFF
CID-11111111
HBOOT-3.19.0.0000
RADIO-1.29.214500021.12G
OpenDSP-v51.2.2-00593-M8974_FO.1015
OS-6.12.401.4
eMMC-boot 2048MB

mabf000 said:
well finally i got to update the firmware and everything but i cant get my phone on 3g, I dont know what when wrong or i dont know if i did something wrong.
What should i do know to test the bands
Click to expand...
Click to collapse
Try the SIM in another phone, if possible, to see if it works on 3G on another device.
Also, be sure the APN info for your carrier is properly entered. Double check and triple check every input to make sure every single character is correct. Even a single added space or missing character can prevent you from getting data properly.

redpoint73 said:
Try the SIM in another phone, if possible, to see if it works on 3G on another device.
Also, be sure the APN info for your carrier is properly entered. Double check and triple check every input to make sure every single character is correct. Even a single added space or missing character can prevent you from getting data properly.
Click to expand...
Click to collapse
ok i did what you told me and it works, it gets 3g on a google nexus and the apns is good but my htc still doesnt get 3g

mabf000 said:
ok i did what you told me and it works, it gets 3g on a google nexus and the apns is good but my htc still doesnt get 3g
Click to expand...
Click to collapse
How does the APN on the HTC compare to that on the Nexus? Are they identical?

redpoint73 said:
How does the APN on the HTC compare to that on the Nexus? Are they identical?
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Click to collapse
hi well yeah they have the same APN

[Q] forum sub-sections and which to use with my phone

my phone: m8, T Mo, carrier unlocked with ATT sim, s-off, super CID
does this mean I can use either the general m8 android dev, etc section as well as the ATT android dev, etc section?
I assume the carrier labeled sections have mostly to do with APN settings, and possibly specific radio bands.
what is diff between ATT and unlabeled m8 subforums?
Thanks!
rlr

runLoganrun said:
does this mean I can use either the general m8 android dev, etc section as well as the ATT android dev, etc section?
Click to expand...
Click to collapse
Basically, yes. You can flash any ROMs from the generic ("international") M8 forum section; as well as the AT&T section. For the most part, the ROMs in the AT&T section are also in the international forum; with the exception of the ROMs by Wonders_Never_Cease. He includes some AT&T specific features, like Visual Voicemail, and bases his ROMs (for most part) on AT&T base.
That last part (AT&T base) may also be important for you, as there is a quirk with AT&T's deployment of Voice over LTE ("HD Voice") that doesn't play well with non-AT&T based ROMs. Although one workaround (which will allow you to use "international" based ROMs) is to call AT&T, and have HD Voice turned off for your account: http://forum.xda-developers.com/showpost.php?p=61746473&postcount=9
runLoganrun said:
I assume the carrier labeled sections have mostly to do with APN settings, and possibly specific radio bands.
Click to expand...
Click to collapse
Its a bit more complicated than that. One specific example, you definitely want to steer clear of the "CDMA" (Sprint and Verizon) development sections. The CDMA version has different partitioning, and the ROMs are not compatible with your M8. And flashing a Sprint/VZN firmware or radio on your device can even result in a radio brick!
But for the most part, the other versions are the same (T-Mob, AT&T, international) with the differentiator being radio baseband, as you somewhat figured out. As mentioned above, you are probably best served to stick to AT&T and international Dev sections.