Database Develop

[Q] Need Help: Using In Japan

Hello. I posted this yesterday in the Nexus S forum (I have an S, not a One) but no one seems to know the answer so I was wondering if perhaps someone here could help out, as the Nexus One has been out for some time now.
In a nutshell, I would like to know how in the world I can get my unlocked Nexus S to work in Japan with respect to data transmission.
Early this year I developed an interest in foreign smartphones as all we had here in Japan was the (IMHO) horrid Xperia X10 and the wonderful HTC Desire. I have purchased a number of phones from overseas (either Hong Kong or the UK) including:
HTC Mini (HK)
HTC Desire (HK)
Xperia X2 (UK)
Galaxy S (UK)
Galaxy Tab (UK)
Nexus S (USA)
Now here's the thing: ALL of these phones were unlocked yet NONE of them allowed any data transmission except the HTC Mini. To this day I fail to understand why.
When I got the HTC Mini, I was using the Mopera U APN/service. I put my Docomo SIM card into the Mini and without doing anything at all, it had data connectivity from the start. To this day I question if it was something related to Windows Mobile, as all of the other phones I listed above are Android (except for the X2).
I had Mopera U with all of these other phones and yet NONE of them work, even after I have tried multiple APN services and have manually typed in the APN settings (i.e. mpr2.bizho.net, spmode.ne.jp, mopera.flat.foma.ne.jp, etc).
Just yesterday I received my unlocked Nexus S from the USA and while it hardly came as a surprise, I am nonetheless infuriated once again that the phone refuses to connect to the wireless network.
It should be noted however that the very first time I attempted to connect the Nexus S to the mpr2.bizho.net APN, for a scant one second, the 3G data transmission icon appeared in the taskbar at the top of the screen, but then immediately disappeared. Since that initial setting, it has never reappeared when I toggle the APN.
Can anyone please offer some advice here? I fail to believe that there is absolutely no way to use this phone in Japan. With all the different network bands and whatnot supported by this phone, surely it has to work. I am still at a loss as to why the Galaxy S and Galaxy Tab failed to connect to the network here when both are in fact, available for purchase domestically. Are the manufacturers actually creating modified band phones for each country despite making the same exact product?
Docomo is absolutely no help whatsoever, claiming that the ONLY band supported here is "3G" and denying any understanding of the other band spectrums (i.e. Quad Band GSM, Tri-Band HSPA, etc).
Some of the IT-related people I know have suggested that my phone is in fact, NOT unlocked and thus the problem stems from that, however considering that the phone will instantly register the NTT DOCOMO network and I can make calls and receive SMS messages, I fail to believe the phone is locked.
I will bring up a point that a friend passed onto me: They suggested that perhaps my problem is that the phone won't work because the previous carrier settings are still on it. The seller on eBay however stated that this was a factory unlocked phone and thus I don't think this applies, though I was a bit confused as to why there was a T-Mobile SIM card inside the Nexus S box, which led me to believe that perhaps the phone is unlocked but it is "defaulted" to T-Mobile network values?
Anyway if anyone could be of some assistance here I would greatly appreciate it.

You seem to know your stuff -- so I'm baffled as to why this isn't working for you.
You're armed with the Docomo APN and authentication, as well as compatible hardware. NTT Docomo (as well as SoftBank) operate 3G/UMTS/HSDPA on 2100Mhz, which your Nexus S supports.
Each year I visit family, I get a rental SIM, get the spiel that loaner SIMs aren't allowed to be used in smartphones (might have changed now). So they give me a phone instead, which I just rip the SIM out of and place in my phone.
I doubt your previous carriers' info would be interfering, since I'm guessing the only entry you have under operators is Docomo (and removed every other carrier), and you have your FOMA SIM inserted.
The only thing I can think of are: your HTC Mini's passing some authentication type handshake (or maybe it's a parameter or setting its' flipping), or the network has some strange blanket ban on IMEI numbers.
Both scenarios are pretty unlikely -- which brings me back to me being baffled. I was able to rip out a SIM and use in a Nokia E51 and an HP iPaq 910 (a handset not sold in Japan). I just entered in some APN settings and it was happy as pigs in ****.
I'm sorry I don't have anything more to offer -- but from what you said, and you are correct -- this should work.
This might sound obvious : Sometimes, Android will have a database built in with APN settings and will use those. Sometimes, It'll read the settings off of the SIM, and use those. Some cases, the auto-selected values might be incorrect if the carrier changed something on their end. Or sometimes, it might not do anything at all. You might have already tried this -- find a working handset (HTC Mini, friend, demo unit in a store, etc), write the settings down and enter them in by hand on your Nexus S. If you've already tried this, I apologize.

[Q] Softcard on T-Mobile?

Hello, all.
I purchased the Sony Z3 Compact from Sony and use it with T-Mobile. I would like to use Softcard (formally ISIS) with this phone, but after getting the enhanced SIM car and trying to create an account I learned this phone is not compatible. It seems, actually, that all phones which are unlocked will not work. Which is why I came here.
I've scoured the forums and the Net in general and found very little. I would rather not root my phone, given the success with getting the Softcard to work with this route does not seem stable based on what I have read. There is this post http://forum.xda-developers.com/showthread.php?t=2538360, but it does not fit my needs exactly (i.e., not using an AT&T phone on T-Mobile).
Are there any phone settings that I can change that will allow success?
Thanks,
emags

Please help. Just bought a new S5 & have a question about enabling native tethering

Please help. Just bought a new S5 & have a question about enabling native tethering
I just purchased from the daily steals special unlocked galaxy S5. Being that I am from Canada, and because the description of the phone was in error I did not realize I was purchasingThe AT&T version which is locked down. While I don't strongly feel the need to root the phone and customize it, I would like to still have full functionality which includes native tethering which on my plan, with my provider in Canada I am entitled to. My understanding is that this version of the phone has the tethering locked down to AT&T. Being that I have not taken ownership of the phone yet I do not know which firmware is installed on it to see whether or not the option of rooting the device on kitkat (and changing the tethering can be done) and then bringing firmware up to lollipop is an option. This is something important to me as I use this feature often.
I would like to ask the following questions:
1. Firstly I would like to know when phones are purchased new do they always have KitKat firmware on them for this model or were any of you who purchased the phone did it come with lollipop out-of-the-box? This is supposed to be a new unlocked model for sale. It is not a refurbished model.
2. Question is there a way to know based on the serial number on the outside of the box what the firmware is? The reason I am asking is because when I pointed out the error of the advertised description of the phone they told me I am entitled to return the phone without restocking fee if I have not opened it yet. That it is already on an unrootable firmware.
3. If by chance this phone is on lollipop, is it still possible to enable native tethering if I am unable to root the phone? I have seen mention on an earlier thread where people used ADB and were able to pull the tethering provision file modify it and push it back to the system which would then allow native tethering to work. I am just not sure if this was specific to pre-lollipop firmware. I have also seen somebody advertise on YouTube it he for a fee is providing the service to enable native tethering on the galaxy S5. However he is the only person I have seen mention this anywhere so I am not sure whether or not this is something that can be done without root. Does anybody have any experience having done this?
I am unfortunately in the awkward situation of having this phone currently be in the US and be brought back to me in the next few days. So I essentially have the weekend to make a decision as to what I should do. If anybody can provide me any insight I would greatly appreciated.

Anyone?
Sent from my SM-N910W8 using Tapatalk

Mine came with KitKat but if you connect to the wifi upon setup I believe they automatically update to Lollipop
I have a rooted G900-A connected to MetroPCS, and I downloaded an app from google play which unlocks the tethering function

OK so this is kind of weird. I just took ownership of my factory unlocked AT&T Samsung galaxy S5. I was dismayed to find when i opened the box and booted it up that it actually had the latest version of lollipop 5.1.1. What is very interesting however is I am in Canada it once I realized that I will not be able to root this device, I decided for fun to turn on the Wi-Fi hotspot and see if it would work and to my surprise and excitement the Wi-Fi hotspot worked with my Sim card for my Canadian carrier. So I don't know if this was a special version that was put out because this came factory sealed in the box it was a factory unlocked model the tethering was unlocked as well. It does have the AT&T bloatware on it but otherwise I am quite pleasantly surprised and happy as my primary reason for choosing to root the device was to enable hotspot. Does anybody suggest that I try to root this phone given that the hotspot is working.? Maybe this is a special version does not have the same locked boot loader as before? How should I proceed if I want to try?

Anyone tested Verizon support for this phone

I know the XZ2 Compact supports verizon, I just wanna know if you pop verizon sim in xperia xz2, if it will have signal or volte?

Trying to figure that out myself. Specs are the same so I don't see why it won't other than a couple folks saying it won't.
Sent from my [device_name] using XDA-Developers Legacy app

Ended up picking up the compact today and popped the sim in from the Essential. Verizon service works fine on it with volte working perfectly. No full size in stock, don't think they even ordered any. Best Buy.

jerrygenius said:
I know the XZ2 Compact supports verizon, I just wanna know if you pop verizon sim in xperia xz2, if it will have signal or volte?
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I tried it with a H8296, first, second (both with working T-Mobile sim), and only sim. No go.
Put the Verizon sim back in my pixel 2, and fired right back up on Verizon.

Has anyone tried this after installing the Android P beta on the XZ2? Curious to see if that magically lets Verizon work. (So irritating that it doesn't regardless...)

Message from a Verizon rep:
Please note that the Sony Xperia XZ2 Compact model certified for Verizon is model H8314. The dual SIM version H8324 is not compatible.

alexj714 said:
Message from a Verizon rep:
Please note that the Sony Xperia XZ2 Compact model certified for Verizon is model H8314. The dual SIM version H8324 is not compatible.
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You rock!!

Honestly it should work fine if you have Volte enabled on your account. For example, the Mi Mix 2 works perfect on Verizon and is not Certified on the network. It just has the appropriate band support (as well as CDMA in this case). However, I had no problems getting Volte working on the Mix 2 despite it not being "certified". I'm going to purchase the XZ2 Premium and try, but it would be great to hear some success here as well.
About what the rep said though, most normal Verizon reps know very little about getting phones on the network. I'd recommend at least getting transfered to an upper tier troubleshooting agent.
You may have to call Verizon to get support on it, but it should just recognize the bands just by popping the already activated Sim in. Maybe toggle the network settings in the options to "Global" or LTE preferred. Volte will be the only obstacle really being that it has all of the LTE bands.

Which is the US variant with support for Verizon LTE bands, H8216 or H8296 or H8266??

Ok guys so I purchased a xz2c (H8314) from Best Buy and it won’t commect to Verizon service for me. It connects briefly when I start phone and when I turn on/off airplane mode. Then it goes back to network service or emergency calls only. I’ve tried several times with tier 1, tier 2 Verizon reps, when to store, went back to bestbuy and spoke with Sony and nothing Is getting my phone to connect. Please help.

TPlatt said:
Ok guys so I purchased a xz2c (H8314) from Best Buy and it won’t commect to Verizon service for me. It connects briefly when I start phone and when I turn on/off airplane mode. Then it goes back to network service or emergency calls only. I’ve tried several times with tier 1, tier 2 Verizon reps, when to store, went back to bestbuy and spoke with Sony and nothing Is getting my phone to connect. Please help.
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Hello TPlatt, I've been trying to follow your posts on a variety of threads. Before you potentially flash another country's firmware on your device, could you review/answer/do some of the following?
Pre-1) This question is probably better served on the sony xperia xz2 compact xda forum rather than the xz2 forum as this issue is mostly resolved for the compact. Search for "HD Voice" in the xz2 compact forum.
1) Did you ever get your phone working on verizon before you started playing around with it i.e. rooting/flashing other other firmware?
-I don't know if this has anything to do with your issues, just curious.
2) Do you have a data only sim or a line+data sim?
-Again, I don't know if this has anything to do with your particular situation, but the general solution of enabling HD voice either through Verizon support or your account through the Verizon website might depend on this. If you have a data only sim, I suggest you find someone with a full Verizon sim and have them finish the activation for you (HD Voice enabling) so the device can be properly show up on and be configured on the Verizon network, before switching back to your data only account.
3) When you were talking with the verizon techs, what transpired?
-I'm assuming you gave them your imei or meid number (I don't remember which one was necessary) so they can whitelist the device and assign it to your account.
Best of luck? If you believe you cannot get your phone to work because of flashing you did, maybe get a swap from BestBuy? I also got my xz2c from there, working on verizon, and waiting for the bugs to work themselves out before rooting my phone.

Magchild said:
Hello TPlatt, I've been trying to follow your posts on a variety of threads. Before you potentially flash another country's firmware on your device, could you review/answer/do some of the following?
Pre-1) This question is probably better served on the sony xperia xz2 compact xda forum rather than the xz2 forum as this issue is mostly resolved for the compact. Search for "HD Voice" in the xz2 compact forum.
1) Did you ever get your phone working on verizon before you started playing around with it i.e. rooting/flashing other other firmware?
-I don't know if this has anything to do with your issues, just curious.
2) Do you have a data only sim or a line+data sim?
-Again, I don't know if this has anything to do with your particular situation, but the general solution of enabling HD voice either through Verizon support or your account through the Verizon website might depend on this. If you have a data only sim, I suggest you find someone with a full Verizon sim and have them finish the activation for you (HD Voice enabling) so the device can be properly show up on and be configured on the Verizon network, before switching back to your data only account.
3) When you were talking with the verizon techs, what transpired?
-I'm assuming you gave them your imei or meid number (I don't remember which one was necessary) so they can whitelist the device and assign it to your account.
Best of luck? If you believe you cannot get your phone to work because of flashing you did, maybe get a swap from BestBuy? I also got my xz2c from there, working on verizon, and waiting for the bugs to work themselves out before rooting my phone.
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Wow so sorry didn’t realize I was in xz2 and not the compact. Guess that’s what I get from using small phone to research

So my mother was in a no LTE zone with the US variant of the XZ2 compact. Earlier she had data and phone service, but once she got back to the same place with data and service the phone wasn't connect. She had to restart her phone to get it working again. Is this common or is there something wrong with the service?

SM-N910T on T-Mobile USA in 2023?

I am contemplating purchase of one of these phones, and tried entering some of their IMEI numbers in the imei checker at https://www.t-mobile.com/resources/bring-your-own-phone , and was shocked to find they are ALL described as "Incompatible".
This is a bit confusing after the articles saying the AT&T and Verizon versions would not work after Jan 2021 but that the T-Mobile version would continue working. I tried looking for a later article saying that support for the T-Mobile version this model was being cancelled but could not find any such announcement.
Is that IMEI checker correct? Or is it because the samples I checked may not have gotten the last modem update installed from T-Mobile?
Is anyone still using this phone (specifically the T variant) on T-Mobile in USA? I'm assuming that last update will be important, but does this still work once it is installed?
If yes to the above, do phone calls work as VoLTE, or is it doing the fallback to 2G?
I've also seen threads about enabling more LTE bands, has anyone done that on this phone? In particular is it possible to add support for B71 (600MHz), or is this radio hardware just too old to allow that?
Thanks much, I would really like to know whether I can use this phone or if I would need to find a different model.

https://swappa.com/blog/3g-network-shutdown/ Your phone is fine.

SM-N910T with 2ETI1 OTA modem update works fine. 4g/LTE Data, WiFi Calling works. Does not drop out of 4G/LTE for voice. SM-N910V w/ MODestROM v11 (6.01 TW-based N910VVRU2CQI2 ) w/ a vzw 2CTI baseband update, has working 4gLTE data, but no WiFi Calling, or VoLTE (falls back to 2g, but I still have 2g coverage here, so it's usable, if not optimum. Here's the thing: on the VZW phone, if I set the the salescode to TMB, suddenly VoLTE works, but the Setup pages/menus/statusbar are screwed up, so it's not really useable. Here's where it gets REAL interesteing. On a VZW phone w/ VZW 2CTI1 baseband, & VZW BL, flashed with a custom TMB ROM (trltetmo_N910TUVU2EQI2_Stock_Deodexed, debloated, but still TW), EVERYTHING works. But it's not stable, it periodically loses 4g/lte. What it tells me is that the VZW h/w is NOT THE PROBLEM. I've been at this all day, everyday since VZW turned off CDMA on 01/01/23 and killed my service here. Be warned: If you go down this path, you're gonna be mostly on your own. A LOT of dead links, 'retired' devs, etc. Everyone except you, me, and three other people here have long since moved on from this awesome phone. I'll help you if I can. I bought an SM-N910T , but the damn usb port is dead. Already changed the charging board, not the problem. It's the mobo. If I could identify the usb chip (if it's not the 805 itself, I'd change it. So I have a phone with no adb that I can't unlock/root. I'd much rather get my VZW phone fully working on TMB, since I'm heavily invested in the MODestROM. Haven't given up yet. But search my posts, you'll hear the deafening silence, lol.

Seeing this forum has so little activity, on 1/21 I ended up getting a used Moto E6 (XT-2005-3 is a tmobile aka carrier unlocked MetroPCS version). While overall this is not as nice a device and has fewer features than Note 4, it does cover what for me are the essentials - removable battery, SD card slot, support for 5.8GHz wifi. Best of all, it supports B71 which will be helpful for, well, making phone calls!
I still ponder someday getting one of these as a hobby device, but that would be second place to the E6 for use as a phone, and won't be for a couple more months yet (too many expensive household issues are taking their toll on my "toy" budget right now).
ForestCat said:
SM-N910T with 2ETI1 OTA modem update works fine. 4g/LTE Data, WiFi Calling works. Does not drop out of 4G/LTE for voice.
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Thank you, this was the part I needed to find out. With that in place, the only thing missing would be the B71 coverage but the E6 is already in place for that.
Re your Verizon adventures, I have no experience with any of that. What I read about T-Mobile dropping support for the verizon version in the last network update is all I know, and I don't have the skills to dispute what they say there. The best I could do is offer some links to threads on this forum but on double checking them it seems you've already been there and got no answers.
The only thing I see that might help you with that is if you could update just the t-mobile modem without disturbing the verizon bootloader. I see you tried that but it didn't stick when using Odin. I don't know if it would be any different using SmartSwitch that seemed to work for MarineWonder as he posted at https://forum.xda-developers.com/t/...pgrade-on-jan-29th-2021.4224237/post-87464609 ?
Then again he may have been putting it on a t-mobile phone rather than mixing with the verizon bootloader so who knows?
My guess since it has been so problematic for you on the verizon phone is that you may need to only use a tmobile phone since that may be the only way to get the last t-mobile modem update. Bummer that the one you bought has a dead usb port. How are you charging it? Is there any chance you could return it to the seller since it came pre-broken? Then put the refund money toward another, hopefully working, tmobile phone? And would that MODestROM work on a non-verizon phone?
The only other thought I had is there are apps to connect to ADB over wifi. Sadly most of these need root. The ones that don't, seem to need at least once using a usb connection to do the "adb tcpip 5555" command to set it all up. . . . how annoying that it is all so circular!
There is also https://telnetd.en.aptoide.com/app?store_name=apps&app_id=59202144 , maybe a telnet connection could do the "adb tcpip 5555" command instead of using the USB connection? Sadly the documentation (at https://waxrain.com/docs/010.html ) appears to be written in Chinese, and I never had much luck with google translate.

The N910T still supports VoLte.. It is still compatible with cellular networks.