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Hi, I am someone who is thinking of buying Developer Edition.
My carrier, SKTelecom, is using 850Mhz LTE band for the main frequency, and 1800Mhz for their secondary frequency. However, due to geographical limitation of secondary frequency, I have no choice but to buy 801n or Developer Edition.
However, I am worried of not being able to use 850Mhz band of LTE. One of my friends bought One Developer Edition from US, and tried to use in that LTE 850Mhz areas, but he could not connect to LTE network. Only 3G worked.
So, I asked him for whether the pre-requirements were met or not. I asked such things;
1) Did you set the proper APN for LTE? (lte.sktelecom.com)
2) Did you set the network mode as WCDMA/GSM/LTE auto, or LTE only in that hidden 4686 menu?
3) Did you really tell the carrier to recognize the phone?
But, everything were correctly set, and there is no reason for being unable to use 850Mhz LTE band.
In a nutshell, I have no One Developer Edition now, and I am in the dead end. I don't know how to solve this. Would there be any solutions? Or, Is there anything I can check?
Sent from my HTC One X+ using Tapatalk 4
I see that the Sony mobile US site has the z3c listed as coming soon. Is it best to just wait for that to come out or will the European version fully support all of the AT&T bands? I'd hate to import a phone and not get the best reception/internet.
I know it was suggested in another thread that it would work with AT&T but then there was some confusion in another thread about the phone possibly missing 1 or 2 bands. Any help from an expert would be greatly appreciated.
mazyou tube
I know Sony's white papers have been wrong in the past (Z1 Compact with glass back, grrrr ) but the one for the Z3 Compact D5803 has 4G bands Bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 20.
I've had a hunt around for AT&T's 4G bands but this seems a but trickier as it seems dependent on region, going by wikipedia it looks like the main bands are 2, 4 and 17 which are all supported by the European version per the above. It probably doesn't help that I'm not from the US and I don't have enough posts to add the URLs, sorry.
I feel like I remember reading back in the day that some companies used bands of the same frequency that weren't cross compatible. It's always made me nervous about buying non US phones. However my info could be wrong.
When I was in the states, I got a AT&T sim card. My phone definitely says that it has the lte bands. Still, it only displayed h+ while I was there. I did not bother to go back to the store and check because the speed was very good anyway. So maybe it's because the bands are different or it was working on 4g but just not displaying it, I don't know.
Sent from my C5503 using XDA Free mobile app
tudork said:
When I was in the states, I got a AT&T sim card. My phone definitely says that it has the lte bands. Still, it only displayed h+ while I was there. I did not bother to go back to the store and check because the speed was very good anyway. So maybe it's because the bands are different or it was working on 4g but just not displaying it, I don't know.
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Click to collapse
AT&T must provision your sim for LTE otherwise you'll only receive 3G even if the phone is capable of 4G. Usually they do this based on the IMEI of your device and if it's a non AT&T phone then it won't appear in their database as LTE capable. There are ways for them to manually configure the sim for LTE by contacting support.
The UK model D5803 definitely supports AT&Ts LTE on bands 2, 4, and 17.
Does AT&T have more bands than 2,4,17?
I found when googling AT&T LTE bands that they apparently have also started to use band 5 (850mhz) but that's still supported by the Z3 compact. This was both on AT&T's forums and howardforums but I'm not sure if AT&T need to do something else to enable LTE support on that particular device. I think my own network (3 UK) has to do this as it took a few months for my unlocked Moto X to pick up their 4G network.
From AT&T: https://www.att.com/shop/wireless/byop.html
Refer to the manufacturer's website to verify your unlocked device works with a SIM card on an AT&T GSM network frequency:
• 3G UMTS network 850/1900MHz bands
• 4G LTE network AWS / 700 / 850 / 1900MHz bands
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AWS (1700/2100MHz) is band 4 (Blocks A, B, C, D, E)
700MHz is band 17 (blocks B, C)
850MHz is band 5
1900MHz is band 2
The overwhelming majority of AT&T LTE is on band 17. Bands 2 and 4 are used for additional capacity in some markets and/or some rural/smaller market coverage. I'm not sure they've rolled anything out on band 5 yet, but even so the Z3c has that covered.
OK,
thank you very much for the additional research. It seemed like that was the case but I don't trust my own opinion since I haven't done any real looking into this type of stuff in like 4 years.
derekmarch said:
OK,
thank you very much for the additional research. It seemed like that was the case but I don't trust my own opinion since I haven't done any real looking into this type of stuff in like 4 years.
Click to expand...
Click to collapse
To answer your original question, as far as we know there is no US model of the Z3c, only the EU D5803 and Asia D5833. If Sony sells it unlocked in the US it will probably be the D5803.
In preparation, hopefully I'll have it in a week.
Programming non-AT&T devices with the correct APN and MMS data settings
Subscribing since I'm very interested in this phone and my service provider is AT&T
Works great. I live in both NY and San Francisco, and I get LTE everywhere on AT&T.
I imported the D5803 (EU) model through Expansys.
Yes. Just make sure to get the d5803 model.
So I just got this phone this week, and I knew it wouldn't have band 20 support from every single info page there is on the web basically, including official Motorola pages.
I was even considering switching operators when buying this phone..
My old HTC One M7 had Band 8, 800mhz, but not 900Mhz, so I never had coverage outside any city or at home.
Band 20 is 900mhz, and is the only band Tele2 Sweden has long range LTE on, which is nonstandard, everyone else is using band 8 for this.
But imagine my surprise when I DO get maximum LTE coverage, literally everywhere I've been.
So I'm properly confused, what does this thing support? Or did I get ridiculously lucky and got an completely unlocked device or what?
The about page says I have the XT1092.
There is already a thread for that, no need to open a new one : http://forum.xda-developers.com/showthread.php?t=2884337
I just got the phone on Monday. With the original ROM and after taking several OTA updates, my LTE signal strength at home and at work was horrible. I'd get around -120 dBm and it would frequently change to HSPA and even EVDO.
One thing that I noticed is that on LTE, it was using band 4, which is 2100 MHz. On my Note 2, it always used band 14, which is 700 MHz. The lower frequency penetrates buildings better and gave me a better signal at work and home (not great, but useable).
I just updated to the latest T-Mobile ROM from the developer site. The LTE signal strength is a bit better at -116 dBm and so far, it isn't changing to HSPA or worse. However, it is still using band 4.
Does anyone know why my old phone used band 14 and this new phone uses band 4? I would think that the phone would use whichever band gave it the best signal, which would certainly be band 14. Is there any way to force this?
Thanks.
I didn't look up the Note 2's specs but I'd guess it didn't have band 4. What are you using to see your band? OpenSignal?
Powell730 said:
I didn't look up the Note 2's specs but I'd guess it didn't have band 4. What are you using to see your band? OpenSignal?
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Click to collapse
I just looked up the specs on Wikipedia. It says that the T-Mobile version uses band 17, but I know that the phone said band 14 before I swapped SIMs.
Wikipedia says the Nexus 6 uses bands 2 / 3 / 4 / 5 / 7 / 12 / 13 / 17 / 25 / 26 / 29 / 41.
This is from the T-Mobile Support site: "TMO uses bands 2 and 4 on LTE/4G & 3G". Also from Support: "LTE band 4(1700/2100), 17(700)". I'm not sure what to believe, or what is in use around here. Like I said above, I know that the Note 2 said it was using band 14.
On the Nexus 6, I'm using an app called LTE Discovery.
T mobile only uses band 2,4,12 for LTE. The note 2 doesn't support band 12. I never heard of band 14.
Sent from my Nexus 6 using Tapatalk
mojoehand said:
I just looked up the specs on Wikipedia. It says that the T-Mobile version uses band 17, but I know that the phone said band 14 before I swapped SIMs.
Wikipedia says the Nexus 6 uses bands 2 / 3 / 4 / 5 / 7 / 12 / 13 / 17 / 25 / 26 / 29 / 41.
This is from the T-Mobile Support site: "TMO uses bands 2 and 4 on LTE/4G & 3G". Also from Support: "LTE band 4(1700/2100), 17(700)". I'm not sure what to believe, or what is in use around here. Like I said above, I know that the Note 2 said it was using band 14.
On the Nexus 6, I'm using an app called LTE Discovery.
Click to expand...
Click to collapse
I'm by no means an expert when it comes to bands/frequencies, however, if the app told you the Note 2 was on band 14, I think it was lying to you. I'm pretty sure there isn't even a band 14 in the U.S., and almost positive T-Mobile does not run LTE on that band.
When (if) band 12 reaches your neighborhood receiption indoors should improve drastically. On band 4 I usually get -109 to -101 dBm. On band 12 I get around -89 to -94 dBm.
I have tried different ROMs and different radio modems. Nothing I do gets me a decent signal. Very occasionally I have had a moderately strong LTE signal, but even then, the download speed is only usable and the upload speed sucks.
The phone doesn't stay on LTE for long. It switched to HSPA and even EVDO most of the time. On HSPA, my old Note 2 got at least 2 Mb downloads. This N6 can't even get a kilobyte down on HSPA.
I don't know if it really affects things, but I read some comments that a bad SIM could possibly cause this. Is this true? If so, I'll drop by the T-Mobile store again and ask them to try another SIM.
I love the phone for the big screen and other features, but I really can't live with this lousy data connection. If I can't get this resolved, I'll have to return the N6 and buy another phone.
I might consider a Note 5 if I have to. It only has a 5.7 inch screen, but my Note 2 had a 5.5 incher. I don't really use the pen and the price premium is high, but I don't know what other phones have a 5.7-6 inch display, except for some Chinese phones. I don't know if they are any good, or if I could use them on T-Mobile.
Call me frustrated.
have you verified apn settings? mine needed a few changes. band 12 should be rolling out soon. i saw it for a day here in portland and service was amazing. can't wait!
nigelorion said:
have you verified apn settings? mine needed a few changes. band 12 should be rolling out soon. i saw it for a day here in portland and service was amazing. can't wait!
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Click to collapse
Anyway to see where band 12 is going live?
Sent from my SM-G920T using Tapatalk
Powell730 said:
Anyway to see where band 12 is going live?
Sent from my SM-G920T using Tapatalk
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Click to collapse
not sure. saw a few people on reddit mentioning they had seen it in my area. i have been using an app called lte discovery to check what band i am on. 12 only popped up once and haven't seen it since.
mojoehand said:
I have tried different ROMs and different radio modems. Nothing I do gets me a decent signal. Very occasionally I have had a moderately strong LTE signal, but even then, the download speed is only usable and the upload speed sucks.
The phone doesn't stay on LTE for long. It switched to HSPA and even EVDO most of the time. On HSPA, my old Note 2 got at least 2 Mb downloads. This N6 can't even get a kilobyte down on HSPA.
I don't know if it really affects things, but I read some comments that a bad SIM could possibly cause this. Is this true? If so, I'll drop by the T-Mobile store again and ask them to try another SIM.
I love the phone for the big screen and other features, but I really can't live with this lousy data connection. If I can't get this resolved, I'll have to return the N6 and buy another phone.
I might consider a Note 5 if I have to. It only has a 5.7 inch screen, but my Note 2 had a 5.5 incher. I don't really use the pen and the price premium is high, but I don't know what other phones have a 5.7-6 inch display, except for some Chinese phones. I don't know if they are any good, or if I could use them on T-Mobile.
Call me frustrated.
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Are you sure that you're on T-Mobile? EVDO is CDMA network and T-Mobile is GSM...
Sent from my Nexus 6 using Tapatalk
BigDig said:
Are you sure that you're on T-Mobile? EVDO is CDMA network and T-Mobile is GSM...
Sent from my Nexus 6 using Tapatalk
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Click to collapse
Yes, I am on T-Mobile. I meant Edge, not EVDO. Too many acronyms.
I just got home and even though the phone is currently showing three bars on LTE, the signal level is only -118 dBm, which isn't good. Speed test won't even do 1/2 Mb/s on download. This is pathetic.
As much as I otherwise like this phone, I can't live with this lousy signal issue. Unless someone knows of a fix, I will have to return the phone to Amazon. As I said, I have tried different ROMS and modems. I have also tried changing various settings that others have suggested (clearing cache, APN settings, etc.). I don't know what else to do.
mojoehand said:
Yes, I am on T-Mobile. I meant Edge, not EVDO. Too many acronyms.
I just got home and even though the phone is currently showing three bars on LTE, the signal level is only -118 dBm, which isn't good. Speed test won't even do 1/2 Mb/s on download. This is pathetic.
As much as I otherwise like this phone, I can't live with this lousy signal issue. Unless someone knows of a fix, I will have to return the phone to Amazon. As I said, I have tried different ROMS and modems. I have also tried changing various settings that others have suggested (clearing cache, APN settings, etc.). I don't know what else to do.
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Have you tried calling tmobile and trouble shooting with them?
Andromendous said:
Have you tried calling tmobile and trouble shooting with them?
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Yes, I've been to the store.
mojoehand said:
Yes, I've been to the store.
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Call and speak to tech support. Most people in the store don't know what there doing.
Sent from my Nexus 6 using XDA Free mobile app
mojoehand said:
Yes, I've been to the store.
Click to expand...
Click to collapse
Or chat with t force on twitter. I have had great success with them. They're awesome.
Sent from my SM-G920T using Tapatalk
Because of the choppy voice calls, as well as the lousy data connection, I am returning this phone and getting a Note 5. Although it is my personal phone, I also need a reliable phone for when I am on call at work.
I have spent all week on this and can't waste any more time. I need something that works. My Note 2 was reliable. I hope the Note 5 will be also.
Thanks to all for suggestions.
I too am having LTE data connection issues on LYZ28K. Anyone on LMY48M having data issues? I tried setting phone info to "LTE only", but that didn't help. I don't need wifi calling, so I'm wondering if I should switch to LMY48M?
Need help figuring this one out. I just got last week while visiting Illinois a P30 Pro L04 that is from Telcel Mexico. Got it from a coworker that lives in Mexico. It is unlocked and I am using in T-mobile ever since. I live in Puerto Rico where Tmobile has Band 4-66-71 for LTE. My previous phone is an Note 9 that I love and still think is better in some ways that the P30 specially in the software side. The cameras in the P30 are spectacular and step way above the Note 9. Long story short my P30 won't connect to band 66, only band 4. It is supposedly supported but it doesn't connect to it. I put my sim card back in the Note 9 and it does connect to band 66 as it used to. So it is definitively the P30 Pro problem. Does anyone know a way to verify what Bands are supported on the phone and see if it Telcel that blocked the band 66. Or maybe the P30 does NOT support band 66 as claimed? Does anyone has a L04 and can connect to band 66? I am new to Huawei phones and don't know what tool are available to verify this things.
I think you might be seeing 66 on your note, but it still really 4. (4 is a sub frequency of 66)
The 66 you're referring to will specify AWS-3. An app like network cell info on the play store should specify - though will likely only work on the Note assuming it's the snapdragon variant.
Goronok said:
I think you might be seeing 66 on your note, but it still really 4. (4 is a sub frequency of 66)
The 66 you're referring to will specify AWS-3. An app like network cell info on the play store should specify - though will likely only work on the Note assuming it's the snapdragon variant.
Click to expand...
Click to collapse
Do you care to elaborate a little more so I can fully understand. Yes my note 9 is the snapdragon variant from Tmobile. I am using the Network Cell Info Lite App and it does show connections to LTE bands 2, 4, 66 and 71 on the note. depending on the place I am around my apt or outside. The P30 Pro only show connections to LTE bands 2 and 4 connections. I understand that bands 66 and 4 are related as they are the same frequencies , but still band 66 should give me better speeds and better connection as shall be not as congested., more blocks, etc. The Network Cell Info (at least the lite version) does not give me anything about the AWS of the band.
So my questions for you or anyone else are:
Are you saying that band 66 won't show on the P30 Pro even if it is connected to it?
Do you know of an engineering menu to really verify that the phone support band 66?
One of my main interest and one that may help a lot of people is to establish if the phone really support band 66 as claimed for this variant?
and if it does, does Telcel disable that support?
if they did, maybe with a generic firmware modem we can get it back?
Thanks in advance
ellopr said:
Do you care to elaborate a little more so I can fully understand. Yes my note 9 is the snapdragon variant from Tmobile. I am using the Network Cell Info Lite App and it does show connections to LTE bands 2, 4, 66 and 71 on the note. depending on the place I am around my apt or outside. The P30 Pro only show connections to LTE bands 2 and 4 connections. I understand that bands 66 and 4 are related as they are the same frequencies , but still band 66 should give me better speeds and better connection as shall be not as congested., more blocks, etc. The Network Cell Info (at least the lite version) does not give me anything about the AWS of the band.
So my questions for you or anyone else are:
Are you saying that band 66 won't show on the P30 Pro even if it is connected to it?
Do you know of an engineering menu to really verify that the phone support band 66?
One of my main interest and one that may help a lot of people is to establish if the phone really support band 66 as claimed for this variant?
and if it does, does Telcel disable that support?
if they did, maybe with a generic firmware modem we can get it back?
Thanks in advance
Click to expand...
Click to collapse
I do not currently have a P30 Pro, so can't speak definitively. (Sold my L29 and have an L04 on the way) I asked about the snapdragon variant because these devices are generally the only that will properly break out band information for you to look at.
The answer to your question is a bit convoluted due to the fact that band 66 includes band 4. These are the AWS bands - band 2 is PCS, 3 DCS, etc. Some devices may tell you that you're connected to 66, but you are in fact connected to 4. (see here for a better definition: https://www.phonescoop.com/glossary/term.php?gid=570 ) If you look closely here, you will see that band 4 and 66 include the same frequencies, but 4 is specific to blocks A-F and 66 includes blocks A-J. Say, you're connected to block C, your phone could be telling you that you're connected to 4 or 66 - both would be correct, its just how the manufacturer has told the software to relay this information.
What you're wanting to validate is that you're connected to the "new/faster" part of band 66, which will be displayed as AWS3 for AT&T. On the RAW tab within network cell information (on your note) it should have the band info and then corresponding block information. If your Note is reading 66 (AWS13) this will probably show as band 4 on your P30 Pro, as it is technically .. band 4. If you are seeing 66 (AWS3) this means you are genuinely connected to the part of 66 you're after. If you see this on your Note and your P30 Pro is still showing band 4, I would suspect that your theory regarding P30 Pro band 66 support is correct. (aka.. not functioning)
Hope this helps.
Goronok said:
I do not currently have a P30 Pro, so can't speak definitively. (Sold my L29 and have an L04 on the way) I asked about the snapdragon variant because these devices are generally the only that will properly break out band information for you to look at.
The answer to your question is a bit convoluted due to the fact that band 66 includes band 4. These are the AWS bands - band 2 is PCS, 3 DCS, etc. Some devices may tell you that you're connected to 66, but you are in fact connected to 4. (see here for a better definition: https://www.phonescoop.com/glossary/term.php?gid=570 ) If you look closely here, you will see that band 4 and 66 include the same frequencies, but 4 is specific to blocks A-F and 66 includes blocks A-J. Say, you're connected to block C, your phone could be telling you that you're connected to 4 or 66 - both would be correct, its just how the manufacturer has told the software to relay this information.
What you're wanting to validate is that you're connected to the "new/faster" part of band 66, which will be displayed as AWS3 for AT&T. On the RAW tab within network cell information (on your note) it should have the band info and then corresponding block information. If your Note is reading 66 (AWS13) this will probably show as band 4 on your P30 Pro, as it is technically .. band 4. If you are seeing 66 (AWS3) this means you are genuinely connected to the part of 66 you're after. If you see this on your Note and your P30 Pro is still showing band 4, I would suspect that your theory regarding P30 Pro band 66 support is correct. (aka.. not functioning)
Hope this helps.
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Click to collapse
Yes it helps a ton. I had to buy the full version of the Network Cell info to get the AWS information, not showing the Lite version.
The note 9 is reading band 66 (AWS13) in Tmobile. With the same simcard and location the P30 reads Band 4(AWS1). So I can't really say if the P30 Pro it is not connecting to band 66. I guess will be good if you give me a follow up once you get your P30 Pro L04 and you happen to be in an area with "real" band 66 support.
Thanks because I am sure this info is good for those that has this variant, or those that want to get one especially if its going to factor into their decision.
ellopr said:
Yes it helps a ton. I had to buy the full version of the Network Cell info to get the AWS information, not showing the Lite version.
The note 9 is reading band 66 (AWS13) in Tmobile. With the same simcard and location the P30 reads Band 4(AWS1). So I can't really say if the P30 Pro it is not connecting to band 66. I guess will be good if you give me a follow up once you get your P30 Pro L04 and you happen to be in an area with "real" band 66 support.
Thanks because I am sure this info is good for those that has this variant, or those that want to get one especially if its going to factor into their decision.
Click to expand...
Click to collapse
For sure. I also bought the L04 variant for B66, so I'm hopeful that this band is indeed active. I will let you know what I find out.
Let me know if you run across AWS3 to validate too.
I've had my L04 P30 pro all over Chicago and St Louis the past few days (in areas I know have b66 coverage) and have yet to see the device pickup it up once.
My only thoughts are that the device only activates b66 once properly provisioned by Telus on their networks, or that AT&T will only tell certain devices to grab the band that they know have proper hardware for. (Internal database of devices, etc) I'm genuinely curious if any Tmobile people are able to pickup the band; generally Tmobile is more lax about these requirements.
Either way, b66 isn't supported on AT&T on my particular L04.
Goronok said:
I've had my L04 P30 pro all over Chicago and St Louis the past few days (in areas I know have b66 coverage) and have yet to see the device pickup it up once.
My only thoughts are that the device only activates b66 once properly provisioned by Telus on their networks, or that AT&T will only tell certain devices to grab the band that they know have proper hardware for. (Internal database of devices, etc) I'm genuinely curious if any Tmobile people are able to pickup the band; generally Tmobile is more lax about these requirements.
Either way, b66 isn't supported on AT&T on my particular L04.
Click to expand...
Click to collapse
At least in different place in Puerto Rico it is the same, only band 4. I shall be in Chicago area also probably in like a month and in Mexico. Will take my note 9 with me to make sure I am in AWS 3 to see if I get band 66. if not then something is right with the phones having band 66 blocked.
Thanks for the update