Factory Image and Nexus 5 variants matter? - Nexus 5 Q&A, Help & Troubleshooting

Well, my question might be sightly obsolete since Nexus 5 already on stock more than a year ago, however I wonder why Google just have one factory image for both variants D820 and D821? Would flashing factory image to change anything in radio parameters? Since in test mode I usually get UMTS/GSM Auto even if I have to change it to WCDMA preferred. Also the only available option to choose radio defaults is the USA one! I have the D821 International variant and I live in Egypt and yet we don't have 4G LTE operators but all friends in same area with Samsung to get H/H+ connection while mine only stuck on EDGE connection. What would be the reason? And how to maintain highest priority to hook to H+?
Sent from my Nexus 5 using XDA Free mobile app

Related

[Q] No LTE icon? (my N5 only shows H)

Hello,
I have been using the Simple Mobile $70 plan for unlimited 4G data. Since I got my brand new Nexus 5, I was wondering why I am not getting "LTE" icon on the notification bar. It only shows H/3G which means (I think) HSPDA+. This is weird since the APN is set to T-mobile LTE (fast.t-mobile.com). Can I fix this if I change the service provider to, for example, T-mobile (assuming Simple Mobile 4G is not LTE)? I heard some people are getting LTE icon with Straight Talk and some don't.
Thanks for your advice in advance!
I went to dialer *#*#4636#*#* ,phone information and select network to GSM/ LTE(auto)
Sent from my Nexus 5 using xda app-developers app
eagle_j said:
I went to dialer *#*#4636#*#* ,phone information and select network to GSM/ LTE(auto)
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
It's already set to LTE/GSM auto (PRL). Any suggestions??
ericjslee said:
Hello,
I have been using the Simple Mobile $70 plan for unlimited 4G data. Since I got my brand new Nexus 5, I was wondering why I am not getting "LTE" icon on the notification bar. It only shows H/3G which means (I think) HSPDA+. This is weird since the APN is set to T-mobile LTE (fast.t-mobile.com). Can I fix this if I change the service provider to, for example, T-mobile (assuming Simple Mobile 4G is not LTE)? I heard some people are getting LTE icon with Straight Talk and some don't.
Thanks for your advice in advance!
Click to expand...
Click to collapse
it depends on if u have LTE service in the area you are at. For instance, I only get 3g service at my house , but if i go a block west of my house i get LTE service. Also i have noted that the nexus 5 have weak reception, some spots i can browse and make calls with my Iphone but at the same spot nexus 5 has no service.
And dont trust the T-mobile coverage map, its a bunch of BS. There are so many areas that I know of that have no service at all of any kind and are shown as great service areas on the map. Best way to find out coverage is to just go to different places ( indoors and outdoors ) and test it out.
fruitsalt said:
it depends on if u have LTE service in the area you are at. For instance, I only get 3g service at my house , but if i go a block west of my house i get LTE service. Also i have noted that the nexus 5 have weak reception, some spots i can browse and make calls with my Iphone but at the same spot nexus 5 has no service.
And dont trust the T-mobile coverage map, its a bunch of BS. There are so many areas that I know of that have no service at all of any kind and are shown as great service areas on the map. Best way to find out coverage is to just go to different places ( indoors and outdoors ) and test it out.
Click to expand...
Click to collapse
You are right. The problem is it doesn't work in my house as well as on campus and in any Chicago downtown area. Maybe I need to try another provider? But buying a new sim card, porting, and changing provider are time- and money-wasting.
ericjslee said:
You are right. The problem is it doesn't work in my house as well as on campus and in any Chicago downtown area. Maybe I need to try another provider? But buying a new sim card, porting, and changing provider are time- and money-wasting.
Click to expand...
Click to collapse
You should try using an att sim and see what kind of coverage you get. Att is definitely more expensive than t-mobile and you dont get unlimited data no matter what but i see no point of having and paying for a service which you can not use. Also you can ask someone else who has the nexus 5 and t-mobile how the coverage is for them in and around the areas you frequent, it might be a device issue.
fruitsalt said:
You should try using an att sim and see what kind of coverage you get. Att is definitely more expensive than t-mobile and you dont get unlimited data no matter what but i see no point of having and paying for a service which you can not use. Also you can ask someone else who has the nexus 5 and t-mobile how the coverage is for them in and around the areas you frequent, it might be a device issue.
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Click to collapse
My friend just told me the processor might not be compatible with the bandwidth that simple mobile uses. I also read some articles saying that LTE support is somewhat perplexing (http://www.extremetech.com/extreme/170166-nexus-5-excellent-global-coverage-perplexing-lte-support),
and that AT&T is fully compatible (http://www.androidpolice.com/2013/1...y-compatible-with-atts-lte-and-hspa-networks/). Your N5 is working fine with AT&T, right?
ericjslee said:
My friend just told me the processor might not be compatible with the bandwidth that simple mobile uses. I also read some articles saying that LTE support is somewhat perplexing (http://www.extremetech.com/extreme/170166-nexus-5-excellent-global-coverage-perplexing-lte-support),
and that AT&T is fully compatible (http://www.androidpolice.com/2013/1...y-compatible-with-atts-lte-and-hspa-networks/). Your N5 is working fine with AT&T, right?
Click to expand...
Click to collapse
Nope. Simple Mobile is an MVNO that operates on T-Mobile's network. The nexus 5 supports all the bands that T-Mobile broadcasts on.
Does Simple Mobile even offer LTE? Because according their website they do not, but they offer hspa+. Which is kind of considered 4g speeds. No mention of LTE.
Sent from my Nexus 5 using XDA Premium 4 mobile app
ericjslee said:
My friend just told me the processor might not be compatible with the bandwidth that simple mobile uses. I also read some articles saying that LTE support is somewhat perplexing (http://www.extremetech.com/extreme/170166-nexus-5-excellent-global-coverage-perplexing-lte-support),
and that AT&T is fully compatible (http://www.androidpolice.com/2013/1...y-compatible-with-atts-lte-and-hspa-networks/). Your N5 is working fine with AT&T, right?
Click to expand...
Click to collapse
I dont see the connection between the processor and bandwidth. I have no idea what bands simple mobile uses but thats based on the radio of the device. As far as i know Nexus 5 supports 3g/4g(h)/LTE for tmobile and att, never used sprint so cant say.
Yes i got my phone from T-mobile and i just put my work att sim card into it, all that was needed was a reboot and it automatically picked up att service with LTE. Data speeds are great, getting 8+ Mbps with only 2 bars of service.
I do think that the nexus 5 have reception issues, the same att sim card in an htc one or iphone 5 gives minimum 4 bars but data speeds are around the same (+ 2~3 Mbps) but more consistent. With t-mobile, i was missing calls, receiving texts hours later and the phone was just hopping between LTE, H and No service.
brooksyx said:
Well that is incorrect. Simple Mobile is an MVNO that sells plans on T-Mobile. The nexus 5 is a world phone and supports all the bands that T-Mobile broadcasts on.
Does Simple Mobile even offer LTE? Because according their website they do not, but they offer hspa+. Which is kind of considered 4g speeds. No mention of LTE.
Sent from my Nexus 5 using XDA Premium 4 mobile app
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Click to collapse
Yes, I remember OOKLA test once peaked 14Mbps, so it's not just 3G. After some research, I found that Nexus 5 works with LTE bands 1/2/4/5/17/19/25/26/41 while T-mobile uses 4 only, Verizon uses 4/12, AT&T uses 2/4/17/29/30, and Sprint uses 25/26/41. Is it a good idea to change the provider to AT&T, or Sprint? Do they support porting in most cases? Thanks.
fruitsalt said:
I dont see the connection between the processor and bandwidth. I have no idea what bands simple mobile uses but thats based on the radio of the device. As far as i know Nexus 5 supports 3g/4g(h)/LTE for tmobile and att, never used sprint so cant say.
Click to expand...
Click to collapse
Actually there is a direct connection between the CPU and the bandwidth support because the radio is part of the snap dragon 800 'system on a chip' CPU.
http://en.m.wikipedia.org/wiki/Snapdragon_(system_on_chip)
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---------- Post added at 11:17 AM ---------- Previous post was at 11:16 AM ----------
ericjslee said:
Yes, I remember OOKLA test once peaked 14Mbps, so it's not just 3G. After some research, I found that Nexus 5 works with LTE bands 1/2/4/5/17/19/25/26/41 while T-mobile uses 4 only, Verizon uses 4/12, AT&T uses 2/4/17/29/30, and Sprint uses 25/26/41. Is it a good idea to change the provider to AT&T, or Sprint? Do they support porting in most cases? Thanks.
Click to expand...
Click to collapse
I would suggest straight talk if you want LTE that. $45 a month. Order their At&t based Sim.
Sent from my Nexus 5 using XDA Premium 4 mobile app
brooksyx said:
Actually there is a direct connection between the CPU and the bandwidth support because the radio is part of the snap dragon 800 'system on a chip' CPU.
http://en.m.wikipedia.org/wiki/Snapdragon_(system_on_chip)
Click to expand...
Click to collapse
I never really looked into the SOC on the snap dragon, the radio modem being on the die with the CPU would definitely effect the throughput. Thanks for the link, I have some further researching to do
brooksyx said:
I would suggest straight talk if you want LTE that. $45 a month. Order their At&t based Sim.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You mean the one they call AT&T Compatible Micro SIM Card, right?
ericjslee said:
You mean the one they call AT&T Compatible Micro SIM Card, right?
Click to expand...
Click to collapse
Yup. That's the one.
Sent from my Nexus 5 using XDA Premium 4 mobile app

Can't turn on radio.

Hello,
I have no signal, I can't turn on radio in the hidden settings (*#*#4636#*#*) and I can't change preffered network to 2g nor 3g.
I have flashed different radios, flashed several factory images (4.4,5.1.1,5.0) but I have the same problem. One thing though, when I'm on 4.4 it says the radio is on in the hidden settings (still no signal) but I can
t' turn it off. Is this a software or hardware problem? What can I do/what are replacement parts I could buy?
Thanks.
Please anyone? This is very urgent.
When I'm on 5.0 my phone immediatly recognizes my sim card and in the initial setup it can verify my network (don't have a signal afterwards). On 5.1.1 I have to take my sim out and put it back in before it recognizes it and it can't verify in the initial setup (also no signal afterwards).
Same problem here. Tried all radios, all stock versions since 4.4 up to 5.1.1.
I'm beginning to suspect physical damage.
What carrier?
Sent from my Nexus 5 using Tapatalk
I'm in Brazil. Reading other threads, I noticed something: my phone is a D820, versus the international D821. I read that the modems are binary-equal, what determines the supported LTE bands is a configuration in the Qualcomm chipset. In my case, only D821 will support band 7 (which is the local LTE frequency). See: http://www.phonearena.com/news/Differences-between-the-two-Nexus-5-models-D820-and-D821_id48985
You wouldn't by any chance be in an area with the international LTE bands, would you?

Using PR 5.1.1 on Tmobile --- What are the best settings?

Hi Everyone,
I picked up the phone during the EBAY $249.00 sale and really like the phone, however I hated the ATT Bloatware.. I flashed the PR 5.1.1 firmware and really like how clean it is, however I am not getting good speeds on Tmobile. In the mobile network settings there is no option for LTE. I have gone into the service menu and changed the band to 4 and can get LTE, however it is really slow, I have also chosen band 17 and getting OK speeds using HSPA+, however no LTE and when I reboot the phone it resets the bands to the default settings...
Any one have any ideas or suggestions?
Thanks,
Chris
I am also having the same problems. I actually have a working AT&T SIM, and I can verify the LG phone can pick up LTE 100% , but with a T-Mobile SIM I can only get HSPA+ (using LTE discovery). I am testing this literally in front of the T-Mobile headquarters in the Seattle area, so I think this is unlikely to be some sort of cell tower issue. My iPhone is using LTE in the same location without any issues. When I use 277634#*# and select band 17 and GSM/WCDMA/LTE Auto , it seems to trigger LTE once a a while, but it never holds for too long.
By the way, I am intrigued that someone in Youtube says it is possible to enable band 12 for this H950 model (just search "band 12 LG Flex 2 T-mobile" in Youtube). Maybe this is fake info?!?
Walkamo said:
Hi Everyone,
I picked up the phone during the EBAY $249.00 sale and really like the phone, however I hated the ATT Bloatware.. I flashed the PR 5.1.1 firmware and really like how clean it is, however I am not getting good speeds on Tmobile. In the mobile network settings there is no option for LTE. I have gone into the service menu and changed the band to 4 and can get LTE, however it is really slow, I have also chosen band 17 and getting OK speeds using HSPA+, however no LTE and when I reboot the phone it resets the bands to the default settings...
Any one have any ideas or suggestions?
Thanks,
Chris
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Click to collapse

I am knocking every door to find the answer for this question.. Can anyone help

Is there anyone who can answer my query. I bought a samsung galaxy note 3 sm n900p from eBay India. Everything is working fine but the main thing calls are not working properly.. The other person can't hear my voice 4 out iof 5 times. Signal getting cut all of a sudden to no service available and in the next second and then again gets the signal. What should I do. I tried factory reset, cache partition wipe and what not but nothing worked. Can anyone help. I like the device like anything. Please help. Device hardware is working wonderful. No problem in it
Hm, how do you know that device hardware work wonderful? I'd rather think the issue is in GSM receiver and go to some service to check it.
Service center people says that it's a foreign model and they won't help me with that
Sent from my SM-N900P using XDA-Developers mobile app
Is there any other way I could verify it I feel compatibility is wrong with frequency bands
Sent from my SM-N900P using XDA-Developers mobile app
Is there any way I could set it to use in india
Sent from my SM-N900P using XDA-Developers mobile app
How to check whether GSM receivers are working fine?
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I spoke to a smartphone repairer who has great experience about what I am facing about signal strength. I clearly told him that the best networks are not able to hold the strength and signal strength falling from - 89 dbm from 0 dbm at once and gaining again.
He said this is a problem with sm 900p sprint lte model and it's a bad choice on my part. That I made a mistake by buying it. I asked is there any way I can get it repaired and he said it's not a problem in hardware or software but compatibility in India.
Should I just take his word as final or should try better sources?
Sent from my SM-N900P using XDA-Developers mobile app
I repair cellphones and sell Sprint, ATT, Verizon, and T-Mobile phones in the USA. That being said, I have to know the differences about these networks. For example, ATT, and T-Mobile use something that is called GSM. It's a method of how your phone connects to the network. GSM is used in the majority of world.
Sprint and Verizon on the other hand use a different radio technology called CDMA. It is completely different than GSM. CDMA uses different frequency bands to communicate. They take completely different hardware.
Now where things get really specific and technical, every carrier in the US have to be regulated by our government (the FCC). Sprint purchases certain frequency bands from the government to use for their network. While the other companies(ATT &Verizon) have their different frequency bands "purchased" by the FCC.
For example, imagine you had walkie talkies. You can pick any channel you'd like, but they both have be on the same frequencies (channels) to communicate with the other walkie talkie.
Now apply that analogy to smart phones specifically made for Sprint. In the baseband, your processor firmware enables which frequencies are accessible and which are not. So if you have a note 4 for Sprint (CDMA) trying to run on GSM, your phone is not configured to read the GSM frequencies you need for your carrier. There are methods in XDA on how to enable these frequencies receive the bands you need to make your phone work normally, but keep in mind that they are outdated and may not work on your phone depending on your proccessor.
I'm experiencing something similar as well, I unlocked my sprint S5 but can only get 3g because of hardware incompatibility.

T-Mobile LTE in US isn't working...ideas?

I imported the 8141 from Clove in the UK. So far, my only real issue is I have yet to see it connect to LTE. I've seen "4G" and "4G+", but no LTE...which is a problem because I can barely pick up a signal other than LTE in my area. I checked and confirmed it's using the correct APN (fast.t-mobile.com). I'm on the 110/unlimited/unlimited $30/month prepaid plan and confirmed I haven't hit the LTE cap. If I put the SIM back in my Moto X Pure/Play, it hops on LTE without a problem.
Everything I've read says the radio should support T-Mobile's frequencies. Is there another setting somewhere I need to change? Do I need to flash another region's stock ROM (and is that even possible yet)? Did I get a lemon? Do I need to hold it a certain way like whatever iPhone it was a couple years back?
Any and all suggestions are welcome.
4G+ is the UK's LTE as far as iconography is concerned. Have you done a speediest on 4G+?
I've noticed the same thing, but I (as mentioned above) thought that LTE and 4G+ were synonymous. I think the only reason to flash a region based image would be to enable radio bands that are disabled based on location (which may be in this case).
Works fine here. Lower Manhattan using same version.
4G is LTE in US.
Download LTE Discovery and you'll be able to see if it is connected to LTE or HSPA(+). Mine, also from Clove, is just fine with AT&T LTE.
nd_geek said:
I imported the 8141 from Clove in the UK. So far, my only real issue is I have yet to see it connect to LTE. I've seen "4G" and "4G+", but no LTE...which is a problem because I can barely pick up a signal other than LTE in my area. I checked and confirmed it's using the correct APN (fast.t-mobile.com). I'm on the 110/unlimited/unlimited $30/month prepaid plan and confirmed I haven't hit the LTE cap. If I put the SIM back in my Moto X Pure/Play, it hops on LTE without a problem.
Everything I've read says the radio should support T-Mobile's frequencies. Is there another setting somewhere I need to change? Do I need to flash another region's stock ROM (and is that even possible yet)? Did I get a lemon? Do I need to hold it a certain way like whatever iPhone it was a couple years back?
Any and all suggestions are welcome.
Click to expand...
Click to collapse
You are looking at the signals wront, I'm on T-Mobile and have 4G+ as well it's the UK version of LTE. Look at my screenshot.
nd_geek said:
I imported the 8141 from Clove in the UK. So far, my only real issue is I have yet to see it connect to LTE. I've seen "4G" and "4G+", but no LTE...which is a problem because I can barely pick up a signal other than LTE in my area. I checked and confirmed it's using the correct APN (fast.t-mobile.com). I'm on the 110/unlimited/unlimited $30/month prepaid plan and confirmed I haven't hit the LTE cap. If I put the SIM back in my Moto X Pure/Play, it hops on LTE without a problem.
Everything I've read says the radio should support T-Mobile's frequencies. Is there another setting somewhere I need to change? Do I need to flash another region's stock ROM (and is that even possible yet)? Did I get a lemon? Do I need to hold it a certain way like whatever iPhone it was a couple years back?
Any and all suggestions are welcome.
Click to expand...
Click to collapse
4G is basically the same thing as LTE in this case. 4G includes WiMax and LTE. So when you see "4G" it means you're using LTE. The same goes with 4G+ - LTE-Advanced (LTE+).
I have LTE logo on my Z3 while Z5 Premium shows 4G while using the same network.
4G is LTE in europe. We did not have that silliness that some 3,5G was called 4g. Also there is no band limitations on XZ Premium.
For app to check which band of spectrum you are connected to, please use Cellmapper app (from my signature).
If you wish to see different icon in there, you could flash Customized DE firmware which has "LTE" icon. But this has only cosmetic effect.
Instead of making a new thread, anyone knows if VoLTE works with the XZ Premium for T-Mobile?
Currently no. You need region or operator specific image Flashed (oem.sin) but there is none for XZ Premium.
But there is hope as there is t-mobile us specific modem configuration in all region images.. which will be loaded when you have correct oem image Flashed.

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