Develop Bugs

T-Mobile bands...

I'm VERY concerned about buying this phone now. T-Mobile have only listed LTE bands 4 & 17 on their site.
International
Quad Band GSM; LTE: 4, 17; UMTS: Band I (2100), Band II (1900), Band IV (1700/2100), Band V (850)
What in the eff?

Des just answererd this question on Twitter: https://twitter.com/askdes/status/581568102015569920
It has:
GSM - 850/900/1800/1900
UMTS - B1/B2/B4/B5
LTE - B2/B4/B12/B17 with CA + B3/B7 roaming
This is the perfect T-Mobile phone.

So the T-Mobile version does not have 1700, and is therefore identical to the other models? Do we know if it includes wifi-calling, or if we would be able to flash the T-Mobile ROM onto the unlocked dev version?

malakai1911 said:
Des just answererd this question on Twitter: https://twitter.com/askdes/status/581568102015569920
It has:
GSM - 850/900/1800/1900
UMTS - B1/B2/B4/B5
LTE - B2/B4/B12/B17 with CA + B3/B7 roaming
This is the perfect T-Mobile phone.
Click to expand...
Click to collapse
But doesn't the AT&T, Unlocked, or Dev model include all of those bands and then some?

pongalong said:
So the T-Mobile version does not have 1700, and is therefore identical to the other models? Do we know if it includes wifi-calling, or if we would be able to flash the T-Mobile ROM onto the unlocked dev version?
Click to expand...
Click to collapse
It does have 1700! That's Band 4, and for both LTE and HSPA.
The T-Mobile version also supports WiFi calling and texting. I have no idea if the T-Mobile firmware can be flashed to the unlocked version, but I don't see why it wouldn't be feasible.
ohiosux said:
But doesn't the AT&T, Unlocked, or Dev model include all of those bands and then some?
Click to expand...
Click to collapse
T-Mobile (Des) confirmed: 2, 3, 4, 7, 12, and 17
AT&T lists: 2, 3, 4, 5, 7, 12, 17, and 29 (adds +5 and +29)
HTC Dev & Unlocked versions (per HTC on Twitter): 2, 3, 4, 5, 7, 12, 13, 17, 29, 30 (adds +5, +13, +29, +30)
Maybe the T-Mo phone supports more that could be unlocked, who knows. The extra bands aren't useful to me.

Sorry, but I just want to clarify.
Do all versions of this phone support BAND IV UMTS or not?

ohiosux said:
But doesn't the AT&T, Unlocked, or Dev model include all of those bands and then some?
Click to expand...
Click to collapse
HTC has done this on the past couple of phones. Only the T-Mobile phone will do their specific bands (HSPA+). On past models I don't recall anyone getting the ATT/DEV models to work with those T-Mobile bands. I don't believe we ever found out why. Some speculated it was due to cost to license all the bands, or that it is actually different hardware. The M7 and M8 were both like that.
If you are on T-Mobile, I'd get the model specifically for them.

stevedebi said:
HTC has done this on the past couple of phones. Only the T-Mobile phone will do their specific bands (HSPA+). On past models I don't recall anyone getting the ATT/DEV models to work with those T-Mobile bands. I don't believe we ever found out why. Some speculated it was due to cost to license all the bands, or that it is actually different hardware. The M7 and M8 were both like that.
If you are on T-Mobile, I'd get the model specifically for them.
Click to expand...
Click to collapse
Oh yeah I remember my Dev version being like that. Fortunately, I live in an area that has been upgraded to mostly lte. This was actually beneficial for me and maybe others in the same situation because it actually saves battery life when the phone isn't constantly switching between edge, 3g/+, and lte. I'm sure many others have been in an area that's barely out of lte but still within h+ range and it's still slow as edge or even slower.

Teo032 said:
Oh yeah I remember my Dev version being like that. Fortunately, I live in an area that has been upgraded to mostly lte. This was actually beneficial for me and maybe others in the same situation because it actually saves battery life when the phone isn't constantly switching between edge, 3g/+, and lte. I'm sure many others have been in an area that's barely out of lte but still within h+ range and it's still slow as edge or even slower.
Click to expand...
Click to collapse
Yes, it is OK if you live in a major area that has lots of LTE. Here just north of LA, I get into the other bands pretty frequently.

I am not sure this was answered? Do all versions of the HTC one m 9 support band 4 UMTS? Many ATT carrier unlocked models are for sale and no one seems to know if they will pick up the UMTS 1700 band 4 on T- Mo?

maddie01 said:
I am not sure this was answered? Do all versions of the HTC one m 9 support band 4 UMTS? Many ATT carrier unlocked models are for sale and no one seems to know if they will pick up the UMTS 1700 band 4 on T- Mo?
Click to expand...
Click to collapse
The AT&T M9 I bought does.

maddie01 said:
I am not sure this was answered? Do all versions of the HTC one m 9 support band 4 UMTS? Many ATT carrier unlocked models are for sale and no one seems to know if they will pick up the UMTS 1700 band 4 on T- Mo?
Click to expand...
Click to collapse
They will not pick up the T-Mobile specific bands, which use 1900/2100 for 41bps speed. They will work with the T-Mobile LTE band.

Wow, still a mystery. I have the AT&T SIM Unlocked One M9 and I have a TMobile prepaid SIM and get Edge, 3G, 4G, LTE Band 2,4,12...I cannot find an app that shows the actual WCDMA (4G) Bands ? But, it notates 42 MBPS when it says HSPA+ 4G using Network Signal Info-Pro App..and also shows 384 Kbps when it says 3G....
So, seems Des is correct unless the Network Signal Info Pro app is wrong?

I turned off everything except WCDMA, and this is what I get being reported by LTE Discovery. HSPA+ @ -113. I have a ATT unlocked M9. I do have the T-Mobile 2.11.531.19 firmware installed as well as the T-Mobile rom.
Using XDA to unleash the power of Android on my HTC One M9

Thanks but as I mentioned I cannot find an App that shows the WCDMA Bands to confirm. As you can see even LTE Discovery says N/A for DL and UL Freq...when on WCDMA...
The only App I can see that helps is Network Signal Info Pro...and unfortunately it is limited and shows me the below in my market;
HSPA+ 42.2 MBPS
HSDPA 7.2 MBPS
UMTS 386 KBPS
But, does not indicate which Band or Frequency ?
Anyone know of an App or Command that will show WCDMA Bands???
Sent from my Nexus 5X using Tapatalk

[Q] ZE551ML at&t APN settings

I am not getting 4G LTE. It is staying on H (hspa). I have the one plus one and get LTE.
The info online says this phone should have all of the bands required.
Any ideas.
Thank you
This is the 4gb ram 64gb ROM version

jross3r said:
I am not getting 4G LTE. It is staying on H (hspa). I have the one plus one and get LTE.
The info online says this phone should have all of the bands required.
Any ideas.
Thank you
This is the 4gb ram 64gb ROM version
Click to expand...
Click to collapse
Check Settings - Mobile Network settings - Preferred Network Type and set it to LTE if you have this option and is not already set.
But I doubt that this is your problem. You bought the Taiwanese phone, didn't you? While OnePlus supports all ATT LTE bands (17, 4, 2), the Taiwanese Zenfone 2 doesn't support band 17 (nor ww model), which is otherwise typical for less inhabited aeries in the USA, but it seems that is widely used by ATT. Try the phone in the downtown or another city and you'll probably catch the LTE on other frequencies.

Yes I purchased it from Taiwan but all of the sites show so many bands for this phone. Asus does a terrible job with their model numbers. There are so many different versions with the same model number. There is a 4 g setting not lte and that is selected. I did pick up 4g while driving through part of the city.
Is there going to be a US model?
Thank you

Yes. There is a US model and its supposed to be released in the next month or so. The link below, click on specs, shows the LTE bands for each region. Clearly shows the Taiwanese model not having the 17 band.
http://www.asus.com/Phones/ZenFone_2_ZE551ML

That stinks. I took that page as it will work in all of these markets. Oh well
Thanks

jross3r said:
I am not getting 4G LTE. It is staying on H (hspa). I have the one plus one and get LTE.
The info online says this phone should have all of the bands required.
Any ideas.
Thank you
This is the 4gb ram 64gb ROM version
Click to expand...
Click to collapse
Where in US are you?

There are some areas in the US that are only on LTE band 17. I suspect that's OP's issue.

mrcamp said:
There are some areas in the US that are only on LTE band 17. I suspect that's OP's issue.
Click to expand...
Click to collapse
I looked at it and TW, WW and US all have 1700 bands if that's what you are referring to. If not can you shed some light?

lordpipa said:
I looked at it and TW, WW and US all have 1700 bands if that's what you are referring to. If not can you shed some light?
Click to expand...
Click to collapse
The topic is about bands not frequencies. There is nothing such as 1700 LTE band. Actually both USA and TW phones work on approximate LTE 700 MHz but bands are different because uplink and downlink are different. So TW model works on band 28 and US one on 17.

piskr said:
The topic is about bands not frequencies. There is nothing such as 1700 LTE band. Actually both USA and TW phones work on approximate LTE 700 MHz but bands are different because uplink and downlink are different. So TW model works on band 28 and US one on 17.
Click to expand...
Click to collapse
I see now. Tnx for the quick response. Hopefully I'm not outta luck when the phone arrives tomorrow from TW. Do you think that flashing later on a radio or baseband will solve this issue?

It's not that simple. Luckily Intel chip supports all LTE bands. But they must be activated in kernel too. Maybe someone will find the method to activate the missed ones. Otherwise you are not so bad. With TW phone you are short of only one LTE band of four major in the USA, Europeans missed 2 of 3.

piskr said:
It's not that simple. Luckily Intel chip supports all LTE bands. But they must be activated in kernel too. Maybe someone will find the method to activate the missed ones. Otherwise you are not so bad. With TW phone you are short of only one LTE band of four major in the USA, Europeans missed 2 of 3.
Click to expand...
Click to collapse
Thanks again for that. I see a bright future for this. Appreciate all this info. And definitely will see u around.

CT and work in long island NY. I hit 4g LTE on my way to work but most of the time have hsta+ which is not terrible.

I'm stuck with NO data on my Zenfone 2 with T-Mobile.

Bl00dRunzC0ld said:
I'm stuck with NO data on my Zenfone 2 with T-Mobile.
Click to expand...
Click to collapse
Check your APN settings.
Should be
fast.t-mobile.com
make sure the dash is in there.

alose said:
Check your APN settings.
Should be
fast.t-mobile.com
make sure the dash is in there.
Click to expand...
Click to collapse
Thanks that worked. I've always used fast.tmobile.com for my connection and never had issues until today. Now I'm happy and on 4g.

lordpipa said:
I see now. Tnx for the quick response. Hopefully I'm not outta luck when the phone arrives tomorrow from TW. Do you think that flashing later on a radio or baseband will solve this issue?
Click to expand...
Click to collapse
Frequency wise is matches everything AT&T needs, i just picked up my 4g/64gb TW model, i'll be playing with apn's to see if i can get lte to pop. Only getting H+ so far.
Correction, shipped with WW firmware, no 700mhz for us.

More - As posted above, this Taiwanese version is missing the LTE band 17. And there are some areas that this may be the only band available, so you will not have LTE in those situations.

Thanks so much.... I was having a heck of time here with my Zenfone 2 in Tucson AZ on T-mobile.... I was stuck on 2G... but updating the APN to fast.t-mobile.com and 2 reboots seems to have done the trick. So glad I don't have to EBAY this! THANKS AGAIN.... Loving this thing so far!

Well ****! This is where I am stuck win H+ on ATT.
No way around this huh unless someone does a new rom? Or is it hardwired?

Q on LTE Bands of VZW G4

Has anyone tested out an AT&T SIM card in a Verizon variant of the G4? I'd really like an android phone that has LTE bands for both AT&T/VZW to swap back and forth with my iPhone. The VZW Nexus 6 worked great, but it was just too clunky for me.
Thanks in advance for the help!

AT&T uses two main bands for LTE, bands 5 and 17. They also use bands 2/4/29/30 depending on the market.
The Verizon G4 supports these bands according to Verizon: 2/4/13, and these bands according to other research I found online: 2/4/5/7/13.
If that's true, it sounds like you should be able to get some LTE in most markets, but you would be limited as the only bands you could get LTE on would be 2/4/5.

Thanks for your help!

geoff5093 said:
AT&T uses two main bands for LTE, bands 5 and 17. They also use bands 2/4/29/30 depending on the market.
The Verizon G4 supports these bands according to Verizon: 2/4/13, and these bands according to other research I found online: 2/4/5/7/13.
If that's true, it sounds like you should be able to get some LTE in most markets, but you would be limited as the only bands you could get LTE on would be 2/4/5.
Click to expand...
Click to collapse
Do you know where 2/4/5/7/13 are confirmed online? I really wish LG would give us more lte bands like the S6 and iphone 6 do so that I can use it between the US and Europe.

nacymex said:
Do you know where 2/4/5/7/13 are confirmed online? I really wish LG would give us more lte bands like the S6 and iphone 6 do so that I can use it between the US and Europe.
Click to expand...
Click to collapse
I only saw it on some spec listings, I'm not sure where you can confirm it.
Sent from my VS986 using Tapatalk

How to use Sprint note 4 on LTE bands 3 and 7?

Hello!
I have an unlocked sprint note 4 which I use outside the USA as a GSM phone with a sim card.
So far so good.
The problem is that this phone being produced for sprint does not connect on 4G.
I have been reading about the possibility to change the NV values to be able to add LTE bands to the phone and I was able to change those values but still no luck.
In my country, the 4g network works mostly on bands 3 and 7 (1800 and 2600).
I am starting to think that probably the sprint version might have differences in hardware with other 4G capable phones.
Can anybody tell if there are any hardware differences between the sprint note 4 and other note 4 models.
Do you think that the sprint note 4 has what its needed to connect on 4G on the above frequencies?
If yes, what might be the right approach to try to resolve this.
Thank you for reading and since this is my first post on XDA please help me!

Yes, because of Sprint Spark it only uses 26 and 41 bands, 1900mhz and 2.5ghz respectively. FDD-LTE and TD-LTE are unique to Sprint and they are big enough to have the phones shipped this way. For flexability yoh should move to a GSM model phone.

Marq221 said:
Yes, because of Sprint Spark it only uses 26 and 41 bands, 1900mhz and 2.5ghz respectively. FDD-LTE and TD-LTE are unique to Sprint and they are big enough to have the phones shipped this way. For flexability yoh should move to a GSM model phone.
Click to expand...
Click to collapse
Heh, what you think about this thread.
Especially about the history of success adding LTE bands 4/14 in SGS5 SM-G900P from Sprint?
Samsung SM-G900F - added LTE band 4. Confirmed operation on new band
Samsung SM-G900P - added LTE band 4/14
Samsung SM-G906L - added LTE band 4
Click to expand...
Click to collapse

spinxus said:
Heh, what you think about this thread.
Especially about the history of success adding LTE bands 4/14 in SGS5 SM-G900P from Sprint?
Click to expand...
Click to collapse
Its worth giving a try for sure. You do run the risk of bricking your NV and losing signal altogether. However, I have done this successfully using DFS CDMA Tools on an old Samsumg Cappy from AT&T back in the day. *Disclaimer: proceed at your own risk*

After further review, and some trial and error, the above listed mod only works with GSM phones. Your Note is a CDMA version. Please do not try.

Marq221 said:
After further review, and some trial and error, the above listed mod only works with GSM phones. Your Note is a CDMA version. Please do not try.
Click to expand...
Click to collapse
I understand but since my note is a CDMA how can you explain that it works fine for GSM and data in 3g ?
What might be the hardware difference with the international version that does not allow my phone to work in 4g in my network?
I am assuming that they use the same chip-set and the problem is only soft based.

LTE Bands support - B8 (900) missing

hi guys,
I'm considering asking a colleague in the states to purchase and send me a Pixel XL.
I did a bands support check for my Taiwanese network and the Pixel supports 2 out of 3 of the used LTE bands on my network (Chungwa). The only one missing is B8 (900).
Anyone with knowledge of how LTE networks work care to enlighten me what the side-effect of this could be? Am I going to be having connectivity issues?

That'd depend entirely on how that particular carrier deploys its LTE. Some carriers use all their bands available, while others use some bands in one area and different bands in another.

iamhacked said:
That'd depend entirely on how that particular carrier deploys its LTE. Some carriers use all their bands available, while others use some bands in one area and different bands in another.
Click to expand...
Click to collapse
Thanks for the info. Would there be any way for me to find this out?

Willyman said:
Thanks for the info. Would there be any way for me to find this out?
Click to expand...
Click to collapse
I personally would install LTE Discovery and see what your current phone connects to in your area

That's odd. I thought band 8 is needed to get LTE with Chunghwa Telecom.