Develop Bugs

Will LTE 1700Mhz work on HSDPA+ 1700MhZ

So I heard LTE is backwards compatible with GSM and HSDPA + My carrier supports AWS band 4. Will this work? Has anyone tried it?

So you're basically asking if the AT&T Optimus G will work with T-mobile's 4G Network, right? The answer is NO. Or at least not by default. That's because, even though the phone has the correct band (1700/2100), you would still need the correct radio to be able to use that specific frequency (again 1700/2100) with your carrier. Much like the AT&T Galaxy Note I717. It supports the 1700 frequency, but in order to have that working band with Tmobile, we had to flash a Tmobile specific baseband/radio from the Galaxy s2, Galaxy S Blaze 4G and/or Tmobile Galaxy Note to be able to use the phone on the 1700 freq. So in this case, Unfortunately, Tmobile won't be releasing the LG Optimus G, so there won't be any radios available to use. But, the LG NExus 4 actually has the exact hardware specs or SOC as the LG Optimus G, so a radio/baseband port might be possible.
I hope this post made sense to you.

So what is the difference than taking a locked phone, unlocking it to another network that shares the same GSM frequency?

Nuxtux said:
So what is the difference than taking a locked phone, unlocking it to another network that shares the same GSM frequency?
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Actually the two networks don't share the same GSM freq. Yes the AT&T LG Optimus G does have the AWS 1700 band in the hardware, but it is not enabled by default in the software. In order to enable the AWS 1700 freq, you'll need to use/flash the correct radio that carries the AWS 1700 freq. Like i said in the earlier post, one might be able to possibly port the a radio/baseband from the LG Nexus 4. Since it supports all pentaband frequencies.

So why would they disable it if the carrier uses 1700/2100 for LTE? I'm still not understanding its limitation
The carrier I want to bring it to uses AWS 1700/2100 3.5G.
Are they selling a phone that doesn't work with LTE on there network? Or can the phone only do 1700/2100 in LTE ?

Nuxtux said:
So why would they disable it if the carrier uses 1700/2100 for LTE? I'm still not understanding its limitation
The carrier I want to bring it to uses AWS 1700/2100 3.5G.
Are they selling a phone that doesn't work with LTE on there network? Or can the phone only do 1700/2100 in LTE ?
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It's not that the 1700/2100 bands are disabled. They are very much enabled but the radio is set to use them for LTE.

So you are saying even though LTE is backward compatible the band installed is software limiting the hardware to only allow LTE 1700/2100?

Nuxtux said:
So you are saying even though LTE is backward compatible the band installed is software limiting the hardware to only allow LTE 1700/2100?
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LTE phones are backwards compatible because they support other bands for HSPA and GSM. For example, a carrier using 1700 MHz for LTE may use 850 and 1900 for HSPA but the 1700 will only work with LTE.

Nuxtux said:
So you are saying even though LTE is backward compatible the band installed is software limiting the hardware to only allow LTE 1700/2100?
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You somewhat got it. It is the same problem with AT&T's HTC ONE X. The phone as the 1700 band for LTE, but when used with Tmo it only picks up 2G using the 1900 GSM. But with Tmo merging with Metro PCS, and partnering with Ericsson and Nokia Siemens Network, the H+ 1900 Spectrum will be available everywhere very soon. I read an article on tmonews.com that it should be done by the end of this year.

maybe the Canadian Telus version would work with T-Mo's AWS

it'll work you'll have to use the modem firmware from the N4 in order to use hspa+

vdub804 said:
it'll work you'll have to use the modem firmware from the N4 in order to use hspa+
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i'll buy the att optimus g once this is confirmed working :good:

Any one got this one working? Got my Att OG, but edge is very slow. the T-Mo refarmed areas are OK though

GS5 Europe Compatibility in the US

I'm not sure where I would post this exactly anyhow =p but I don't know much about antennas and such and what the US primarily uses for phone towers and 4g and all that. How well would the European version of the s5 work in the US? More specifically the G900K which is for Europe usage.
Some specifics for the euro s5:
Network:
LTE 800/850/900/1800/1900/2100/2600); UMTS (850/900/1900/2100MHz) ; GSM (850/900/1800/1900MHz)
HSPA (Download/ Upload) LTE Cat4 (150Mbps/50Mbps) / HSDPA+ 42Mbps / HSUPA 5.76Mbps / 3G / EDGE / GPRS

ReapersDeath said:
I'm not sure where I would post this exactly anyhow =p but I don't know much about antennas and such and what the US primarily uses for phone towers and 4g and all that. How well would the European version of the s5 work in the US? More specifically the G900K which is for Europe usage.
Some specifics for the euro s5:
Network:
LTE 800/850/900/1800/1900/2100/2600); UMTS (850/900/1900/2100MHz) ; GSM (850/900/1800/1900MHz)
HSPA (Download/ Upload) LTE Cat4 (150Mbps/50Mbps) / HSDPA+ 42Mbps / HSUPA 5.76Mbps / 3G / EDGE / GPRS
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1st, this should have been posted in the Samsung Galaxy S5 q&a forum. It looks as if the radios are similar, but you cannot flash roms or any other software that are NOT designed for your phone. That's how bricks happen
sent from my G3

Well duh.. Wasn't planning on rooting. I'm just curious as to how compatible.. Don't want to get a phone with no 4g in the us

ReapersDeath said:
Well duh.. Wasn't planning on rooting. I'm just curious as to how compatible.. Don't want to get a phone with no 4g in the us
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You will have to unlock the phone to use in the U.S. Also sometimes stock software is not always compatible in the U.S. You will likely have issues with text and mms messages because of incorrect apns, as well as 4g issues.
sent from my G3

joeyhdownsouth said:
You will have to unlock the phone to use in the U.S. Also sometimes stock software is not always compatible in the U.S. You will likely have issues with text and mms messages because of incorrect apns, as well as 4g issues.
sent from my G3
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I know a company out of China where they unlock it and do all that stuff. Just need to figure out how well it works lol

[Q] 4G LTE Doesn't Work...

Hi, I'm having a problem with my new HTC6500LVW from Verizon.
Almost everything works good, except for the 4G/3G connection. I'm in México and my service is provided by Telcel, they use the band AWS-1 (1700Mhz upload and 2100Mhz download) for LTE, but the problem is that I found that Verizon use 700Mhz band to provide this 4G service.
I' have already configure the APN with the specifications indicated by Telcel, but nothing... All I get is EDGE connection.
My question is... Is there a way to... unlock or add this band (AWS-1) to make it compatible with the service proided here in México???
Thanks in advanced!

Sadly, no. The hardware doesn't support it. As for 3G (HSPA if it is GSM) the phone only supports certain frequencies from the website, it appears to be 900 and 2100 mhz.
http://www.htc.com/us/smartphones/htc-one-m7/
Sent from my HTC6500LVW using XDA Free mobile app

Lte not working. Help please.

I have an htc m8 unlocked international model and which does support 1800mhz frequency for lte, the same my network provides for lte. But i am unable to run lte. tried my sim card on an iphone 6 and lte works just fine. Please help me.

yousafkhar said:
I have an htc m8 unlocked international model and which does support 1800mhz frequency for lte, the same my network provides for lte. But i am unable to run lte. tried my sim card on an iphone 6 and lte works just fine. Please help me.
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is 3g working ok?
do you get 4g on the screen at all?

Yes
m112 said:
is 3g working ok?
do you get 4g on the screen at all?
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Yes 3g works but on other carrier. The carrier which is providing Lte doesnt have 3g.

LTE signals not getting
m112 said:
is 3g working ok?
do you get 4g on the screen at all?
Click to expand...
Click to collapse
The same problem is getting me as well. According to the Network provider(WaridTel Pakistan) this model of HTC One M8 is not supported in Pakistan or Carrier Lock something even the LTE option is appearing in network modes. Meanwhile 3G and edge is working perfectly.
HTC one Mdoel Name: OP6B160
Network: waridTel (LTE 1800 MH)

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?
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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?
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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?
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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.
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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?
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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?
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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