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I'm just curious if there's anyone out there with an HD2 on Verizon? If not, is it possible to do it? The HD2 is a quad band device, so doesn't it have the hardware capable to be on a CDMA network? I was thinking that if I bought an unlocked HD2, I would be able to put it on my account with Verizon. I guess I would have to be running a different radio in order to do that though.
Anyone have any thoughts, comments, suggestions? I really want one of these phones, but I can't switch from Verizon because no other provider gives me 3g in my area. Plus, my Touch Pro 2 is getting dated compared to that 1gz Snapdragon!
HD2 is a GSM phone. Pretty sure it can't be made to work on a CDMA network.
Technology
GSM: 850/900/1800/1900 MHz
WCDMA/HSPA: 1700 MHz (AWS) / 2100 MHz
Taken from the HD2 tech specs on HTC's website.
If it has a CDMA radio, why couldn't it work if it were unlocked?
Does Verizon have a sim card to put in the phone? If not, how can they make it work on their network.
Verizon does have sim cards, they use them in the Blackberry Storm, which is both GSM/CDMA ...
But It may be like the storm if it is activated via the IMEI that it may not require a sim card ...
rly? i never thought verizon would use sim cards...can we bring non verizon phones them from lets say ATT to their network?
Verizon has SIM cards for their GSM/CDMA world phones. Sprint also has world edition blackberries with a SIM card. The SIM card is there so the phone is able to roam onto a GSM network outside of the USA. As far as I know this SIM card will not allow it to roam onto a USA GSM network, since there are no roaming agreements in place between VZ and ATT/TMO
The WCDMA on the HD2 is not the same as CDMA that VZ/Sprint use.
WCDMA is the 3G standard that GSM providers use. CDMA is well as far as i know the same old CDMA network that VZ/Sprint have used for ages with whatever "bolt on" enables 3G on their network. I dont follow the CDMA standard so i dont know all the specifics about the tech.
Edit:
I just did a small amount of wikipedia research. What Verizon/Sprint use is CDMA2000/EV-DO
http://en.wikipedia.org/wiki/CDMA2000
http://en.wikipedia.org/wiki/Evolution-Data_Optimized
This is not compatible with WCDMA,
Even though they both use "CDMA" family of technology http://en.wikipedia.org/wiki/Code_division_multiple_access
WCDMA is a wideband version http://en.wikipedia.org/wiki/WCDMA
Thanks for the replies guys. This is a bummer though. I was really hoping to be able to get an HD2 to use with Verizon. Oh well, guess I'll wait for the Droid X to release, even though I'd like to stick with WiMo.
Hey guys, I saw this Global edition is coming out, anyone know if it would work straight up on a GSM network? I'm on Rogers in Canada, same netwrok as AT&T and unfortunately GSM android phone selection blows and I've wanted a Droid for ever. Does the Global have a SIM card slot, would it work as a GSM phone or is it strictly designed to work on CDMA and work on GSM from time to time?
Please for the love of god someone tell me it will work as a normal GSM phone, I want a good android phone
Well here in america I know they have the black berrys such as the storm 1 that are gsm and also have verizon "sim cards" in them (yeah, weird I know..) so I want to assume that the phone will be coming with a sim card slot somewhere but honestly I haven't heard much either about the droid 2 we..when I first saw it I had no idea what a "we" droid 2 was lol...neither did google ...hahah
Sent from my DROID2 using XDA App
JonandRoid said:
Well here in america I know they have the black berrys such as the storm 1 that are gsm and also have verizon "sim cards" in them (yeah, weird I know..) so I want to assume that the phone will be coming with a sim card slot somewhere but honestly I haven't hear much either about the droid 2 we..when I first saw it I had no idea what a "we" droid 2 was lol...neither did google ...hahah
Sent from my DROID2 using XDA App
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Click to collapse
Hahaha thanks man, I'm going to wait till thing gets pushed out finally hopefully someone will tear it apart.
But if anyone else knows anything else please chime in. This could be sweet if it works
Like the global phones of yesteryear (Blackberry devices, a few Windows mobile ones and some feature phones), they come with a VodaFone SIM for use with global roaming. It is SIM-locked (subsidy locked) however and you'll need to unlock it. Verizon routinely does this for regular customers on contract but if you buy the Pro or D2 Global unsubsidized they generally won't and you'll have to unlock it via a third party.
Once it's unlocked: It's tri-band UMTS. I'm not an expert on UMTS frequencies around the globe. I know it'll work in a couple hundred countries outside North America but I have no idea if it'll work at 3G speeds on US or Canadian GSM networks. It'll definitely work for phone calls and 2G data on AT&T, T-Mobile, Rogers, etc since it's quad-band GSM - this is how the global BlackBerry devices work. My old Storm 1 is still in use by someone on AT&T and I intend to sell my current unlocked Storm 2 when I finally break down and pick up one of the new global Droids.
Just got a Droid 2 Global. It has a VZW/Vodafone sim in it, no idea if it's SIM Locked(I'm sure it is). Once you get it unlocked, it shouldent be hard to get working with a rogers sim.
http://www.verizonwireless.com/droid-2-global-motorola-nbsp.shtml
states:
# All–Digital, 800/1900, CDMA EVDO rev A
# Quad Band GSM – 850/900/1800/1900MHz
# Tri–Band UMTS/HSPA – 850 /1900/2100MHz
So according to this, if its unlocked, it should work for Rogers or AT&T 3G
Any ideas on how to get it unlocked ?
i'm sure a third party company can unlock it like how the storm 1s were unlocked, just have to wait and see since it was barely released from vzw.
I got my D2 Global SIM unlocked yesterday. Called VZW Global Support (1-800-711-8300) and they gave me the code (once you put in a non-VZW SIM, it will automatically ask you for the code.) As long as your line has been active for at least 6 months with no late payments, they will hook you up.
HOWEVER, it appears there may be more to the unlocking process. When I did a GSM network scan, no networks showed up. Others on various forums have been reporting the same issue in the last day or so. Normally when you put in a SIM into an unlocked GSM phone, you will see the roaming network options.
It's possible that they have blocked US GSM networks and foreign networks will work fine, but I'm hoping others can shed some light on the issue.
ArizonaGuy said:
It'll definitely work for phone calls and 2G data on AT&T, T-Mobile, Rogers, etc since it's quad-band GSM
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xryousukex said:
# All–Digital, 800/1900, CDMA EVDO rev A
# Quad Band GSM – 850/900/1800/1900MHz
# Tri–Band UMTS/HSPA – 850 /1900/2100MHz
So according to this, if its unlocked, it should work for Rogers or AT&T 3G
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Click to collapse
Not quite. If you look at the D2G user guide on the Motorola website, it says on page 12: "DROID2 Global by Motorola switches effortlessly between CDMA, GSM 900, GSM 1800, and UMTS 2100 networks, so you can make calls in over 200 countries worldwide."
So it seems that VZW has restricted use of the 850/1900 MHz GSM/UMTS bands, even though the device has the hardware to support them. Most foreign networks use 900/1800 GSM and 2100 UMTS but AT&T/T-Mobile use 850/1900, which is why no one has had any success with them yet.
Hopefully someone can figure out a workaround.
Yes - hopefully someone can find a workaround for this. The same is true for the Droid Pro in that even once the phone is unlocked it will not work on ATT networks.
I am a little confused about some information I found on Verizon's Note 3 Page. It says that the Note 3 will be a CDMA phone but then lists the following bands:
CDMA Data – 1x and EVDO Rev0/RevA
LTE: B13 (700MHz)
Global Ready (GSM/EDGE: 850/900/1800/1900; HSPA/UMTS: 850/900/1900/2100 MHz)
(original link: http://www.verizonwireless.com/b2c/...t&action=viewPhoneDetail&selectedPhoneId=7194)
Does it mean that if sim-unlocked, it can be used internationally, and how, if it doesn't take a sim card? If it can be used internationally, I would much rather buy a Verizon (for the US) instead of AT&T. I use AT&T only because it's a GSM carrier.
I don't have the answer but I can recommend you to contact Samsung wireless. They certainly have much more credibility.
Good luck
Sent from my SAMSUNG-SGH-I747 using xda premium
All Verizon 4G LTE devices take SIM cards. They have to, since LTE is based on GSM. Also, historically, Verizon doesn't carrier-lock the LTE/HSPA/GSM part of their 4G LTE phones, so SIM cards from other carriers will work in a Verizon LTE phone out of the box.
incisivekeith said:
I am a little confused about some information I found on Verizon's Note 3 Page. It says that the Note 3 will be a CDMA phone but then lists the following bands:
CDMA Data – 1x and EVDO Rev0/RevA
LTE: B13 (700MHz)
Global Ready (GSM/EDGE: 850/900/1800/1900; HSPA/UMTS: 850/900/1900/2100 MHz)
(original link: http://www.verizonwireless.com/b2c/...t&action=viewPhoneDetail&selectedPhoneId=7194)
Does it mean that if sim-unlocked, it can be used internationally, and how, if it doesn't take a sim card? If it can be used internationally, I would much rather buy a Verizon (for the US) instead of AT&T. I use AT&T only because it's a GSM carrier.
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I found the answer here, by the Answerer #2. The 4G/Data part of a global ready phone is GSM compatible, and only that part can be locked for data internationally; the calling part will still depend on CDMA in other countries. If that information is accurate, I will stick to an AT&T Note 3.
darkkterror said:
All Verizon 4G LTE devices take SIM cards. They have to, since LTE is based on GSM. Also, historically, Verizon doesn't carrier-lock the LTE/HSPA/GSM part of their 4G LTE phones, so SIM cards from other carriers will work in a Verizon LTE phone out of the box.
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Truth be told. LTE has more in command with CDMA in terms of radio/air interfaces. It covered within 3GPP standards (GSM then EDGE, the UMTS, HSDPA, etc). Rather than 3GPP2 for CDMA1x and EVDO. That's why Alcatel Lucent had a leg up on LTE since its deployment is more akin (specterally) to CDMA. But they dropped the ball, and except for the US and Some Asian markets, the rest of the world has 3GPP based networks deployed.
the Simple version, is LTE is not directly compatible with any 2G/3G technology, but since its covered in 3GPP, the standards evolved quicker to ensure GSM/EDGE/HSDPA interworking.
And beyond that.. what most people dont know, that interworking doesnt really work that widespread yet. In the US most mobile handsets operate on dual frequencies (especially all VzW models, ATT models are catching up) so they effectively talk CDMA1x and LTE at the same time. iPhones do not support that capability, but GSM has work arounds to allow talk+data.
i'll go back to me hole now
(btw.. anyone with iOS7 and ATT.. what out you've got problems you dont know about when going back forth from 3G to 4G.. I know since at work we talked about how to fix it..
I believe a rumor was that it has the same LTE baseband chip as the iphone 5s so that you could potentially use the Verizon version on AT&T and T-mobile...any truth to that?
incisivekeith said:
I found the answer here, by the Answerer #2. The 4G/Data part of a global ready phone is GSM compatible, and only that part can be locked for data internationally; the calling part will still depend on CDMA in other countries. If that information is accurate, I will stick to an AT&T Note 3.
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Not true, I put a T-Mobile SIM in my Verizon Note 2 and made calls, sent texts, and used data on GPRS, EDGE, and HSPA+.
geoff5093 said:
Not true, I put a T-Mobile SIM in my Verizon Note 2 and made calls, sent texts, and used data on GPRS, EDGE, and HSPA+.
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Click to collapse
I have also done it with an ATT sim on my Verizon note 2.
Sent from my SCH-I605 using Tapatalk 4
geoff5093 said:
Not true, I put a T-Mobile SIM in my Verizon Note 2 and made calls, sent texts, and used data on GPRS, EDGE, and HSPA+.
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mchlwvr614 said:
I have also done it with an ATT sim on my Verizon note 2.
Sent from my SCH-I605 using Tapatalk 4
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Nice! Was this native to the stock Rom or is a custom one needed that has this ability "unlocked"?
bigwavedave25 said:
Nice! Was this native to the stock Rom or is a custom one needed that has this ability "unlocked"?
Click to expand...
Click to collapse
Stock rom, rooted to allow apn editing.
Sent from my SCH-I605 using Tapatalk 4
Global-ready is basically verizon's way of saying that it has a GSM 3G radio as well as a CDMA radio. That allows the phone to operate in Europe where there is no CDMA service. You can purchase international service from Verizon, or purchase a SIM from a European carrier while overseas. All verizon 4G phones have a GSM 4G radio anyway, because LTE is GSM.
(This means that with an LTE carrier in Europe, any 4G Verizon phone can get data in Europe even if they can't place voice calls (VoIP still possible)).
If I am not wrong with what I am saying, Verizon LTE phones only support LTE BAND: 13, which means that IF you are willing to use 4G with different carrier, they have to support LTE band 13. I have tried to use my Verizon Galaxy Note 2 in South Korea, I was only able to use 3G network via WCDMA, I wasn't able to get LTE service at all. Correct me if I am wrong.
HecAtic said:
If I am not wrong with what I am saying, Verizon LTE phones only support LTE BAND: 13, which means that IF you are willing to use 4G with different carrier, they have to support LTE band 13. I have tried to use my Verizon Galaxy Note 2 in South Korea, I was only able to use 3G network via WCDMA, I wasn't able to get LTE service at all. Correct me if I am wrong.
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the different N3 variants due in fact support different LTE bands, so you are correct. Minor point not worth nitpicking from earlier post, GSM is not LTE. they both evolved from the same 3GPP standards body, but portions spread spectrum nature of LTE is more similar to CDMA than GSM.
I went to Korea last October, and they wouldn't allow prepaid 4g LTE. They would only allow 3G for prepaid service.
I had a note 2 rooted and custom rom when I went. I'm a US citizen and you have to wait about 2-3 days before you are allowed to sign up for any plan on what they told me.
As far as I know, Verizon is using the N900V on their network which requires CDMA band.
I bought a SM-N900W8 from Telus Canada and after having it unlocked, I was unable to have it registered under my Verizon account.
So, not wanting to pay the outragious roaming price that we have from our greedy Canadian Carriers, I purchased an AT&T Pay as you GO sim card.
TaDa!!!!
This is due to the use by Verizon of CDMA band which isn't supported by most Canadian Cellphone that requires at least WCDMA OR LTE/GSM Band.
So, if you're planning to travel the USA and are looking to get an American SIM Card, most likely, verizon will not be an option for you (they're expensive anyway)
AT & T and T - mobile supports the GSM as far as I know.
??
Trying to read through as much as I can, but can't find a definitive answer to see if the dual sim options will facilitate a 3G network for the second sim, as in Australia the 2G network already scheduled to be turned off (Telstra Dec 2016 - Optus April 2017 - Vodafone Sep 2017).
From what a can see on the specs pages, it seems the second sim is only 2G/GSM capable, but would appreciate if anyone can confirm or debunk my 'theory'.
I also assume dual won't be available in Oz, so assuming HK best option again (like always) to obtain dual version? Thanks for the advice, cheers!
http://www.phonemore.com/phone/samsung-galaxy-s8-duos-sm-g9500/3233
According to this SIM No. 2 only supports 2G.
it might be wrong. after nougat update S7 edge itself got the option for 3g in secondary sim while using 4g as first sim
Thanks, I appreciate the comments.
The only other mention apart from Columbo_70's link above I can find (at a couple of sites) is similar to this
http://www.gsmarena.com/samsung_galaxy_s8-8161.php - showing the "(dual-SIM model only)" statement next to the 2G networks. Could mean the 2G networks only available on the second sim slot(as well as 3G?) or second sim is only 2G - depends on how you interpret.
Definitive answer may have to wait until phone is in user hands, and user verification can take place, as I tend to feel (hope) same as Quicksilver, that Nougat will give it the 3G functionality.
Currently on S7 edge i have:
Sim 1: lte/3g/2g
Sim 2: 3g/2g
I'd expect s8 to be the same.
I bought a S7 Edge dual sim in Dubai.
I have a subscription to Orange in France where I get 4G+ and a second subcription in France with Free
where I only get 2G.
I installed lately the latest Superman rom 2.4 with Nougat (great rom by the way) and hoped when going to Japan I could finally
get 4G/3G.
I bought a sim card working with Docomo in Japan (internet only, no voice) and hoped for the best as 2G does not
work in Japan.
Unfortunately I am stuck with 4G/2G. Once when tweaking the settings I would see 4G and 2G/3G but it did not work and went back to 4G and 2G to my great disapointment.
I have seen a post from a guy in Singapore saying also he did get 4G and 3G using a beta of Nougat.
May be it depends on the networks, I have no clue.
I hope the S8 will get 4G / 3G as many people are looking for this feature.
---------- Post added at 04:07 AM ---------- Previous post was at 03:51 AM ----------
kluifje in another thread just posted that the 128GB dual sim version in India would be LTE/LTE .... Let's hope for it
Thanks Everyone, but I've bit the bullet and ordered the Huawei Mate 9 Pro, as it is confirmed as 4G/3G for dual sim. Pity, would have liked to try a Samsung, maybe the S9 or S10 down the track...
Got my S8+ Dual sim today (G955FD). It supports 4G LTE on one sim and 3G on the other. So it is 4G + 3G.
EMF said:
Got my S8+ Dual sim today (G955FD). It supports 4G LTE on one sim and 3G on the other. So it is 4G + 3G.
Click to expand...
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Can you use them both together? That would be incredible.
Alvincp said:
Can you use them both together? That would be incredible.
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It is dual standby so only one can be on a call at the time, and one is set for data
Samsung says S8/S8+ will support 4G/LTE on both SIMS
Samsung clearly stated in their announcement on April 26, and in the specs on their website, that both SIM-1 and SIM-2 support 4G/LTE (FDD and TDD). However, when one SIM is on 4G, the other will be on 3G/2G. This is how my LG G4 works, and it's quite satisfactory, switching back and forth between China and the US. The only downside on the LG is that it does not support T-Mobile's LTE band, so it's on HSPA+ in the US, which isn't horrible, but LTE would naturally be better.. Looks like the S8/S8+ might have the same issue, as I don't see the 1700 band listed.
The following is directly from Samsung's website, for the dual SIM S8 and S8+
Bands++:
4G FDD-LTE: B1(2100),B2(1900),B3(1800),B4(AWS),B5(850),B7(2600),B8(900),B12(700),B13(700),B17(700),B18(800),B19(800),B20(800),B25(1900),B26(800),B28(700)
4G TDD-LTE: B38(2600),B39(1900),B40(2300),B41(2500)
3G WCDMA: B1(2100),B2(1900),B5(850),B8(900)
3G TD-SCDMA: B34(2010),B39(1880)
3G CDMA: BC0(800)
2G GSM: GSM850,GSM900,DCS1800,PCS1900
2G CDMA: CDMA800
++Support 4G Network in HK and China: FDD-LTE and TDD-LTE; 3G Network in HK: WCDMA; 3G Network in China: TD-SCDMA and WCDMA and CDMA. Subject to local network, data and messaging services. If one of the SIM Card is using 4G or 3G Band, the another SIM Card supports 3G or 2G band only, vice versa. Users can choose 4G or 3G network with either SIM 1 or SIM 2 without changing the SIM card
http://www.samsung.com/hk_en/news/product/samsung-galaxy-s8-and-s8plus/
I'm going to HK to hopefully pick mine up at the end of May. Will update with actual experience, if I'm lucky enough to get one.
ChinaUser
I had a Galaxy S7 Edge Dual SIM which supported 4G/3G/2G - SIM #1 and 2G Only -SIM #2 when I purchased the phone but recently with the Android N update it enabled 3G/2G support on SIM #2. On a recent trip to Korea and Japan I confirmed that SIM #2 did indeed support 3G as I was finally able to get dual SIM support in those countries (both Korea and Japan do not have 2G). This was not possible prior to the Android N update. I recently purchased a Galaxy S8 Dual (SM-G950FD) and the SIM Card Management menu shows 3G/2G on the SIM #2 so I believe this will work exactly like the Galaxy S7 Edge Dual SIM with Android N.
All current flagship phones supports 4G/3G, it's the current trend, and to accommodate the discontinue of the 2G network in some countries.
Does anyone know, if the specific S8 for China is dual sim active or not? @Chinauser
@Akram - The S8 is dual standby, as said in previous post, but have no additional info. Based on my research on both the S8 and LG G6, decided to order the dual SIM LG G6 (H870DS). I've read that the LG supports 4G/4G, but only one at a time, similarly to my LG G4, but I should know for sure within a couple of weeks.
Chinauser said:
@Akram - The S8 is dual standby, as said in previous post, but have no additional info. Based on my research on both the S8 and LG G6, decided to order the dual SIM LG G6 (H870DS). I've read that the LG supports 4G/4G, but only one at a time, similarly to my LG G4, but I should know for sure within a couple of weeks.
Click to expand...
Click to collapse
currently no phone supports dual 4G/4G, only 4G/3G or 3G/4G.
Yes.. meant that both SIM1 and SIM2 support 4G, but not simultaneously. Must switch back and forth.
So SIM 1 is LTE and SIM 2 can be 3G? Which country are you in?
defender007 said:
So SIM 1 is LTE and SIM 2 can be 3G? Which country are you in?
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Either SIM 1 is 4G and SIM 2 is 3G or SIM 1 is 3G and SIM 2 is 4G
Only one sim can use 4G at the time. Both SIMs can use 3G/2G, but you have to select which of the two SIM can use 4G in settings.
Dual 4G LTE Support in 2018 phones
kms108 said:
currently no phone supports dual 4G/4G, only 4G/3G or 3G/4G.
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Most phones launched in 2018 offer dual 4G LTE as standard, see this post.
https://www.androidcentral.com/what-dual-4g-lte-and-why-should-you-care