Database Info

GPS not working

Hello,
I live in Europe and received verizon samsung s3 sch-i535 as gift from USA. Its a nice phone but the GPS isnt working - i tried tightening screws, using various gps applications but still e.g. GPS Essential sees 0 satellites. I only get a lock on using wi-fi but In my everyday usage I cant always relay on that and need satellites.
The question is if the problems stems from malfunctioning hardware or it could be something caused by the fact that im using a branded us phone in europe? (there is a permanent notification that sim card is from unknown source)
Would changing rom to non-branded help? or should I just seek to fix hardware? ( if I cant do that myself I dont know if it wouldnt be too expensive compared to phone price to let specialist do that)
Thanks in advance for advices.

[Completed] Noob in need of radio/modem flashing information

Hello,
I recently purchased a note 5 duos SM-N9208 from Taiwan. I was led to believe that the device was unlocked GSM, but had EV-DO capabilities. My understanding was that this would work on Verizon's network, because it had both radio chips inside. I was told by Verizon that "there is no approved way" for them to get me up and running on their network. The tech made a point of saying there is a difference between approved, and no way. This leads me to believe that something can be done. I'm wondering if someone would be kind enough to help me out. Phone is running original Rom, unrooted, and is basically useless to me right now, as I'm desperately clinging on to my unlimited data with Verizon. Is it possible to root the device, and flash the modem with Verizon note 5 baseband info? Any help anyone can offer would be very much appreciated.

XDA Visitor said:
Hello,
I recently purchased a note 5 duos SM-N9208 from Taiwan. I was led to believe that the device was unlocked GSM, but had EV-DO capabilities. My understanding was that this would work on Verizon's network, because it had both radio chips inside. I was told by Verizon that "there is no approved way" for them to get me up and running on their network. The tech made a point of saying there is a difference between approved, and no way. This leads me to believe that something can be done. I'm wondering if someone would be kind enough to help me out. Phone is running original Rom, unrooted, and is basically useless to me right now, as I'm desperately clinging on to my unlimited data with Verizon. Is it possible to root the device, and flash the modem with Verizon note 5 baseband info? Any help anyone can offer would be very much appreciated.
Click to expand...
Click to collapse
Hi, and welcome to XDA!
When I looked up the specs on the Note 5 Duos, unfortunately it says nothing about CDMA. Having both "radio chips inside" can be taken two ways, in this case, this phone has the capability to handle two GSM carriers (and in this case, like most dual-sim phones, only the first SIM can do 3G/4G/LTE speeds).
Network Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 1900 / 2100
4G bands LTE
Speed HSPA 42.2/5.76 Mbps, LTE
GPRS Yes
EDGE Yes
Click to expand...
Click to collapse
It seems the only option (if you want to use this phone), is to join a GSM carrier like AT&T, T-Mobile, or one of their MVNO's (like MetroPCS).
Hope this helps.

joel.maxuel said:
Hi, and welcome to XDA!
It seems the only option (if you want to use this phone), is to join a GSM carrier like AT&T, T-Mobile, or one of their MVNO's (like MetroPCS).
Hope this helps.
Click to expand...
Click to collapse
Thank you, Joel! I'm excited to learn as much as possible from tgis forum. I actually changed over to T-Mobile, and have been good for the most part. The problem i'm having now is related to finding a way to flash the radio to all of their Rf's. I rooted, and attempted to flash the modem and bootloader from N920T, but it failed. I am still having a hard timr understanding why the identical hardware will not accept firmware from different model numbers. Again, very inexperienced, so it may be something very obvious i dont know about. If could offer any assistance, or provide and thread links that may be useful, i wpuld very grateful. Ive been searching nonstop, reading, and still cant seem to find a way.

Rockstah said:
Thank you, Joel! I'm excited to learn as much as possible from tgis forum. I actually changed over to T-Mobile, and have been good for the most part. The problem i'm having now is related to finding a way to flash the radio to all of their Rf's. I rooted, and attempted to flash the modem and bootloader from N920T, but it failed. I am still having a hard timr understanding why the identical hardware will not accept firmware from different model numbers. Again, very inexperienced, so it may be something very obvious i dont know about. If could offer any assistance, or provide and thread links that may be useful, i wpuld very grateful. Ive been searching nonstop, reading, and still cant seem to find a way.
Click to expand...
Click to collapse
Well, the hardware (particularly the modem) is not compatible, hance the failed install. You are lucky it cancelled out as you could have had worse problems on your hands.
The way i see it, you will have to wait for other regions for the Note 5 Duos to open up before you get flashing options. I would even question the need for that, if you get a decent range of bands with T-Mo (I am assuming you can get 4G).
If you want to explore further anyway, please check out this thread:
> Samsung Galaxy Note5 > Galaxy Note5 Q&A, Help & Troubleshooting > [Help Thread][Galaxy Note5] Ask Any Question, Noob Friendly
Hope this helps.

joel.maxuel said:
Hope this helps.
Click to expand...
Click to collapse
It did, thank you! I get decent service (including LTE) almost everywhere. Problem is, once I get to my.house, I go completely out of service. No call.I no text. It wouldn't be a big deal, but the Taiwanese phone doesn't have a way to turn WiFi calling.

Rockstah said:
It did, thank you! I get decent service (including LTE) almost everywhere. Problem is, once I get to my.house, I go completely out of service. No call.I no text. It wouldn't be a big deal, but the Taiwanese phone doesn't have a way to turn WiFi calling.
Click to expand...
Click to collapse
Aha. That and no sign of the 700mHz band (which may not be part of your phone anyway, not just hidden by the current firmware).
Since the firmware would need deep support of Wifi Calling (or VoLTE), as in more than just an App, I am afraid you will have to wait until the Duos releases into an area with that support in their firmware (and hope that, that area's firmware doesn't disable a frequency you use).
Makes scraping all the lead paint[*] off the house the more manageable task, doesn't it?
[*] I really don't know if your house does indeed have lead paint. I am assuming it's coated in something metal, or concrete, which avoids typically high frequency radio waves from entering. I never had that problem with my house (which may be strange, since it was built in the 40's), but maybe creating ways to boost the existing signal may be in order instead.

Is there a DEV that can create a flashable zip/mod for international roms on G900P

Hey guys,
I have been noticing, ever since the MM update came out earlier this year, development has slowed to a crawl for this phone. There are a few roms that look really nice, but are not really good as a daily driver, as some have missing functions such as Phone and Contacts, and other stuff is glitchy. But over on the international G900F forums they are overloaded with different great roms with tons of support and updates and all that good stuff. And looking at the difference between the Sprint G900P Galaxy S5 and the Unlocked variant (The G900F in particular) they have 95% of the same internal components, with the only difference being the Modem to communicate with the CDMA (Sprint) and GSM (every other carrier basically) Towers. This is the reason why the roms will boot, and everything will work perfectly hardware and driver wise other than picking up a signal for the Sprint Users.
So what I am asking is if there is a Developer out there who can compile a flash-able zip or something alike that includes the drivers for the Modem and sprint Libs. Or even if there is someone who has a background in this that could point me into a good place to start, I would be glad to do it. What does everyone think about this?

my question for you is why do you want this? I only ask because i was running MOAR 7.0 for my trip to Romania and Bulgaria this summer. I spent 2 weeks in a town 5 hours northwest of Bucharest and tons of town around Transylvania and a week down by the black sea in Bulgaria and my S5 was working perfectly on vodafone, never had an issue at all. Im domestically sim unlocked, but that shouldnt matter as the SSU apk should get you internationally unlocked and ready for use abroad. That being said, none of the international ROMs would give you an unlock for international or domestic use.

youdoofus said:
my question for you is why do you want this? I only ask because i was running MOAR 7.0 for my trip to Romania and Bulgaria this summer. I spent 2 weeks in a town 5 hours northwest of Bucharest and tons of town around Transylvania and a week down by the black sea in Bulgaria and my S5 was working perfectly on vodafone, never had an issue at all. Im domestically sim unlocked, but that shouldnt matter as the SSU apk should get you internationally unlocked and ready for use abroad. That being said, none of the international ROMs would give you an unlock for international or domestic use.
Click to expand...
Click to collapse
I think you read the question wrong (perfectly fine, i didnt really word it very well on my part). What i was asking is if there could be a universal patch to make the Sprint LTE and Messaging and all that good stuff work on an international rom. I think it is possible as there is currently something that is exactly that, except for Verizon (the G900V variant).

chippinganimal said:
I think you read the question wrong (perfectly fine, i didnt really word it very well on my part). What i was asking is if there could be a universal patch to make the Sprint LTE and Messaging and all that good stuff work on an international rom. I think it is possible as there is currently something that is exactly that, except for Verizon (the G900V variant).
Click to expand...
Click to collapse
Oh, my bad. Well, sprint lte isn't going to work overseas. To get lte, you'll need to do quite a bit of finagling with an nv calculator, qpst and qxdm. You'll first need to fine out what bands the carrier you'll be using utilizes, get the nv figures that they run on and make some changes to the modem you have installed on your phone. That involves getting into the diagnostic port of the device and, well, there's a whole thread devoted to exactly that. Anyways, hspa+ will work without too much effort, and hspa+ is pretty dang snappy. Messaging will work right out of the box after registering on the GSM network(+1 to gsm ) MMS and data will work also once you've entered the correct APN settings. If you REALLY need lte, then you're relegated to some tweaking, but if you can live with 5 to 7 Mbps(which is all a phone really needs, unless you're tethering for a laptop or several tablets or something like that), then just do the hspa+ thing. I was happily able to tool along quite well on that streaming YouTube, Netflix, Google map navigating, etc etc without issue. The reason there isn't a universal fix is because it would take quite some doing to maintain an app to have all those apns and so forth, but that being said, the idoneapps apk does do that for the available gsm carriers in the states. I didn't use it abroad, but might be worthwhile to ask in their forums. The admin of that site "nodial" is an Android genius! Their app costs $35, and it won't add the lte bands, but if the lack of hassle is worth it to you, it couldn't hurt to ask him. He's on XDA also with the same nick. @Nodial, does your app do the APN fix abroad too?
Sent from my SM-G900P using XDA Free mobile app

VoWiFi (Wi-Fi calling) Moto G 2015 Osprey

Hello All,
In my new home is very low T-Mobile signal strength.
As i know from carrier official page, T-Mobile supports VoLTE and VoWiFi (Wi-Fi calling) in my country.
Now (6 july 2017) i have installed newest LineageOS build. There no option to enable Wi-Fi Calling/VoWiFi, but regarding to official Qualcomm site Osprey's processor (Snapdagon 410) supports Wi-Fi Calling/VoWiFi:
Next-generation Calling Services
Voice over Wi-Fi (VoWiFi) with LTE call continuity
HD Voice over 3G and VoLTE
It is posible to enable Wi-Fi Calling/VoWiFi on Osprey?
This solution does not work. When i make Wi-Fi Calling enable it going back to off.
Device: Moto G 2015 (XT1541)
Country: Poland
Carrier: T-Mobile
ROM: LineageOS 14.1 build from 6 july 2017

mrViZhy said:
Hello All,
In my new home is very low T-Mobile signal strength.
Is i know from carrier official page, T-Mobile supports VoLTE and VoWiFi (Wi-Fi calling) in my country.
Now (6 july 2017) i have installed newest LineageOS build. There no option to enable Wi-Fi Calling/VoWiFi, but regarding to official Qualcomm site Osprey's processor (Snapdagon 410) supports Wi-Fi Calling/VoWiFi:
Next-generation Calling Services
Voice over Wi-Fi (VoWiFi) with LTE call continuity
HD Voice over 3G and VoLTE
It is posible to enable Wi-Fi Calling/VoWiFi on Osprey?
This solution does not work. When i make Wi-Fi Calling enable it going back to off.
Device: Moto G 2015 (XT1541)
Country: Poland
Carrier: T-Mobile
ROM: LineageOS 14.1 build from 6 july 2017
Click to expand...
Click to collapse
FYI For U.S. prepaid T-mobile accounts: T-Mobile may require address and other information to be entered on their website into the account profile for that phone #. If that information is entered on-line and the account has WiFi calling properly enabled it should work when the device has wifi connection and no cellular connection. This is not dependent on any settings on the phone and should work even if you don't see any settings there. You might want to contact your provider about this.

mrViZhy said:
... It is posible to enable Wi-Fi Calling/VoWiFi on Osprey?
This solution does not work. When i make Wi-Fi Calling enable it going back to off.
Device: Moto G 2015 (XT1541)
Country: Poland
Carrier: T-Mobile
Click to expand...
Click to collapse
No, it doesn't work, not with T-Mobile. It won't stay on, no matter what you do.
I have MetroPCS/T-mobile USA, and I have had the exact same issue. I've had no problems using wifi calling on my same account with other phones, but not this one (they do require you to register your full info here, as the last poster said). T-mobile support themselves have told me, however, they only allow wifi calling on phones purchased directly from them, and that's why no go, at least not in the USA. I'm assuming that's their policy in other countries, too?
I don't know if there is a hack/workaround.
Side note: When I go to Europe, which is often, I re-register my old, official t-mobile phone with t-mobile usa, leave my US sim in it, and I use that phone thru wifi calling to still have a US phone while there. I throw a UK sim in my Moto G to use every day.

beachfl said:
No, it doesn't work, not with T-Mobile. It won't stay on, no matter what you do.
I have MetroPCS/T-mobile USA, and I have had the exact same issue. I've had no problems using wifi calling on my same account with other phones, but not this one (they do require you to register your full info here, as the last poster said). T-mobile support themselves have told me, however, they only allow wifi calling on phones purchased directly from them, and that's why no go, at least not in the USA. I'm assuming that's their policy in other countries, too?
I don't know if there is a hack/workaround.
Side note: When I go to Europe, which is often, I re-register my old, official t-mobile phone with t-mobile usa, leave my US sim in it, and I use that phone thru wifi calling to still have a US phone while there. I throw a UK sim in my Moto G to use every day.
Click to expand...
Click to collapse
From what I understand, I could be wrong though, T-Mobile open sourced their WiFi calling and anybody can implement it but LineageOS haven't done it yet. It's a matter of adding the code (just like VoLTE) I think. I don't think T-mobile checks if it's their phone or not, the right software need to run, that's all. The problem is that the software is very low level and needs to part of the kernel, you can't just install some app and make it work. This is what I found when I did my search for LineageOS and WiFi calling a few months back. from T-Mobile forums. Of course anybody can post anything in those forums so it's not official or anything but a few users provided the same answer (some seemed quite knowledgeable) so I believe this is it (probably better than talking so some phone rep reading off FAQ's haha)

rb1979 said:
From what I understand, I could be wrong though, T-Mobile open sourced their WiFi calling and anybody can implement it but LineageOS haven't done it yet. It's a matter of adding the code (just like VoLTE) I think. I don't think T-mobile checks if it's their phone or not, the right software need to run, that's all. The problem is that the software is very low level and needs to part of the kernel, you can't just install some app and make it work. This is what I found when I did my search for LineageOS and WiFi calling a few months back. from T-Mobile forums...
Click to expand...
Click to collapse
It's not unheard of for mobile providers to do just what I'm suggesting t-mobile does. In the UK, for example, Vodafone limits WiFi calling even further than that, to only a few select Voda-sold models (or at least it was like that when I was there recently).
I would very much appreciate being pointed in the direction of guidance by anyone who's been successful in getting it to work on any non-tmobile handset, custom ROM/kernel or not. Thanks much x

IronTechmonkey said:
FYI For U.S. prepaid T-mobile accounts: T-Mobile may require address and other information to be entered on their website into the account profile for that phone #. If that information is entered on-line and the account has WiFi calling properly enabled it should work when the device has wifi connection and no cellular connection. This is not dependent on any settings on the phone and should work even if you don't see any settings there. You might want to contact your provider about this.
Click to expand...
Click to collapse
Hi IronTechmonkey, at first I took it as a fact but later I thought about it and now I'm thinking how would WiFi calling work without LinageOS having code for it. Once you're outside of their network and T-Mobile (others too of course) can't get to your phone through SIM card the only way for anything to work is if the software on the phone through the internet first contacts the provider, correct me wrong but how would the provider get to you? This is just my thinking about it so I'm not sure but what common sense tells. I have the address on T-mobile and everything setup but since I'm not NJ where coverage is everywhere it's not easy for me test it but I'm scared without LineageOS actually getting on top of it and implementing the code it's not going to work. I'll test it once I go somewhere with no coverage but haven't had a chance yet.

rb1979 said:
Hi IronTechmonkey, at first I took it as a fact but later I thought about it and now I'm thinking how would WiFi calling work without LinageOS having code for it. Once you're outside of their network and T-Mobile (others too of course) can't get to your phone through SIM card the only way for anything to work is if the software on the phone through the internet first contacts the provider, correct me wrong but how would the provider get to you? This is just my thinking about it so I'm not sure but what common sense tells. I have the address on T-mobile and everything setup but since I'm not NJ where coverage is everywhere it's not easy for me test it but I'm scared without LineageOS actually getting on top of it and implementing the code it's not going to work. I'll test it once I go somewhere with no coverage but haven't had a chance yet.
Click to expand...
Click to collapse
Good question. I wasn't being quite clear enough in replying, and was speaking to whether or not there would be settings in the ROM if the feature exists, but was not speaking to whether or not the code is present. To the point of your question, from general web searching this seems to be device/ROM-build specific but when I search specifically for Lineage OS Osprey wifi-calling I find this thread. LOL. Apart from that this jira ticket for a different device is all I can find: https://jira.lineageos.org/browse/BUGBASH-508.

IronTechmonkey said:
Good question. I wasn't being quite clear enough in replying, and was speaking to whether or not there would be settings in the ROM if the feature exists, but was not speaking to whether or not the code is present. To the point of your question, from general web searching this seems to be device/ROM-build specific but when I search specifically for Lineage OS Osprey wifi-calling I find this conversations. LOL. Apart from that this jira ticket for a different device is all I can find: https://jira.lineageos.org/browse/BUGBASH-508.
Click to expand...
Click to collapse
Thanks, so I'm confused now, and thanks for your help. I know with VoLTE it was such a big deal we had whole posts about removing it and then bringing it back etc... all the updates and drama we need while nobody mentions even once if this device has wifi calling or not, haha, weird

I want to reopen this thread, I tried to ask in the official development opsrey thread but was sent to Q & A, so I'm reopening this thread. Anybody knows anything about Wi-Fi calling for osprey and LOS? Will it be implemented? Can I make a request somewhere? Maybe just switch to LOS 15 when it's official, will it have it on the arrival? I traveled outside of the US and did different tests and couldn't get Wi-Fi calling to work? Here's my post from the official osprey development thread with more detailed, thanks you, https://forum.xda-developers.com/showpost.php?p=73769962&postcount=5299
BTW, I made all necessary changes back in the USA with T-mobile to make Wi-Fi calling work, thanks.

So, WiFi Calling is unavailable as default option on any of ROMs for our devices.
BUT
For example, in Poland everybody who has Android higher than 4.1 can use "WiFi-calling" on "Orange" carrier. This carrier offers some application which realy works:
https://play.google.com/store/apps/details?id=pl.orange.vowifi&hl=pl
Functionality of this app is same, but i think it drains more battery than "wifi-calling" implemented as driver in kernel.

mrViZhy said:
So, WiFi Calling is unavailable as default option on any of ROMs for our devices.
BUT
For example, in Poland everybody who has Android higher than 4.1 can use "WiFi-calling" on "Orange" carrier. This carrier offers some application which realy works:
https://play.google.com/store/apps/details?id=pl.orange.vowifi&hl=pl
Functionality of this app is same, but i think it drains more battery than "wifi-calling" implemented as driver in kernel.
Click to expand...
Click to collapse
Thanks mrViZhy, actually I'm traveling from USA to Poland too. What I would like to do is keep the US number and receive text message (and pick up phone calls too) from US. I'm assuming your solution requires getting Orange number, if that's the case it would break the connection that I have with the US.
Thanks again for your help

How to use T-Mobile Network completly with unlocked S8+?

I have the G995U1, and I really love this Galaxy S8+ phone. I am upgrading from a Nexus 6P. Though my concern has been receiving the 4x4 MIMO and QA256, and I know in order to do that I have to flash a modem on this S8+ to receive 100% of T-Mobile's network specs. My only issue is I have no idea how exactly to do this (I couldn't find many resources on specifically the modem) and where the download for said modem file is.
I am not looking to install T-Mobile's firmware by any means, I just want all the full specs T-Mobile's network provides, as I don't want to have to go through the reinstallation of my apps and settings process all over again.
Can someone help me, or address my concerns?