[Q] Still no LTE - Galaxy S 4 Q&A, Help & Troubleshooting

I have a i9505 running 4.2.2 (UFNB8, DBT CSC) stock, non-rooted. My problem is that I still can't get LTE/WCDMA to display as an available option in Network Mode. Operator is Telenet (MVNO, Belgium). I am in a 4G area, according to the operator my SIM card is 4G capable and my IMEI has been 4G activated. According to them I should be able to connect to the LTE netwrok, but no go. They advised factory reset but I don't want to do that for now as I am not sure it will help. I remember seeing LTE as available when I roam (in roaming my MNC is different though).
Any ideas (apart from rooting and forcing LTE radio on?).
How does the 9505 decide when to turn on the LTE radio? Is it based on getting an LTE signal or is something defined on configuration file level per MCC/MNC...?
Cheers.

OK, I should have searched more. But for future generations' sake, apparently there are two possible reasons:
1. Need a factory reset (still don't understand why?!)
2. Your phone's CSC is not supported on your current carrier's network (apparently this is checked and there's a whitelist of some sort)
In my case it was 1 - I reset and now LTE/WCDMA appears.
Cheers

Related

Installing I-9505 ROM on Verizon Galaxy S4 I-545

Hi All,
I know its a topic which has been addressed differently in different threads. I am a user from India and have a GSM SIM. I have got a Verizon S4 phone. I tried using it with Vodafone SIM and get a problem in using it. Surprisingly a NOTE 2 from Verizon works just fine. I am able to use it for data with 3G but not able to use it for voice. Following steps have been tried already.
- Default Options of using Global Mode and GSM/UMTS ** Doesnt search the network at all.
- Hidden Menu Changes using # codes. ** Shows network but emergency mode only.
- Phone Info app to change the mode. ** Shows network but emergency mode only.
- RF Band change using the hidden menu. ** Shows network but emergency mode only.
It does say that it has GSM radio but cant be used for some software reason I suppose. I checked with Verizon Rep and was told that it cannot be used in India with a GSM SIM and would need the Verizon SIM only to connect with International Roaming.
I was able to install Wanam Lite I-9505 ROM on the phone and patch it with Loki-Doki patch and the phone was booting. But the network signal was not getting picked up. I had data connectivity but no voice or SMS. Is it possible to patch the I-9505 radio over to I-545 and / or force it use GSM as the primary modem.
Any idea for this?
phrozenwire said:
Hi All,
I know its a topic which has been addressed differently in different threads. I am a user from India and have a GSM SIM. I have got a Verizon S4 phone. I tried using it with Vodafone SIM and get a problem in using it. Surprisingly a NOTE 2 from Verizon works just fine. I am able to use it for data with 3G but not able to use it for voice. Following steps have been tried already.
- Default Options of using Global Mode and GSM/UMTS ** Doesnt search the network at all.
- Hidden Menu Changes using # codes. ** Shows network but emergency mode only.
- Phone Info app to change the mode. ** Shows network but emergency mode only.
- RF Band change using the hidden menu. ** Shows network but emergency mode only.
It does say that it has GSM radio but cant be used for some software reason I suppose. I checked with Verizon Rep and was told that it cannot be used in India with a GSM SIM and would need the Verizon SIM only to connect with International Roaming.
I was able to install Wanam Lite I-9505 ROM on the phone and patch it with Loki-Doki patch and the phone was booting. But the network signal was not getting picked up. I had data connectivity but no voice or SMS. Is it possible to patch the I-9505 radio over to I-545 and / or force it use GSM as the primary modem.
Click to expand...
Click to collapse
I have the same problem
phrozenwire said:
Hi All,
I know its a topic which has been addressed differently in different threads. I am a user from India and have a GSM SIM. I have got a Verizon S4 phone. I tried using it with Vodafone SIM and get a problem in using it. Surprisingly a NOTE 2 from Verizon works just fine. I am able to use it for data with 3G but not able to use it for voice. Following steps have been tried already.
- Default Options of using Global Mode and GSM/UMTS ** Doesnt search the network at all.
- Hidden Menu Changes using # codes. ** Shows network but emergency mode only.
- Phone Info app to change the mode. ** Shows network but emergency mode only.
- RF Band change using the hidden menu. ** Shows network but emergency mode only.
It does say that it has GSM radio but cant be used for some software reason I suppose. I checked with Verizon Rep and was told that it cannot be used in India with a GSM SIM and would need the Verizon SIM only to connect with International Roaming.
I was able to install Wanam Lite I-9505 ROM on the phone and patch it with Loki-Doki patch and the phone was booting. But the network signal was not getting picked up. I had data connectivity but no voice or SMS. Is it possible to patch the I-9505 radio over to I-545 and / or force it use GSM as the primary modem.
Click to expand...
Click to collapse
Have you messed with your APN settings? I use a I545 with T-mobile here in the states and all I had to do was change the APN settings

[Q] Help with Modem - Model: WIND (SM-N900W8)

I am really new to the world of ROOTING & FLASHING and have already bricked one device. I have followed a lot of information provided by the gurus on here but am at a standstill with my new device as I cannot afford to brick a second one due to my lack of knowledge when it comes to this stuff.
I do not wish to root my device at this time but did read the post talking about "regional" lock. It seems this is only relevant if people unlock their device through the rooting method. Since my device is from WIND Mobile (unactivated) and I purchased an unlock code from cellunlocker.net, I assume I can input my Telus SIM and I would not have to worry about a regional lock? As I understand, the purchased unlock code would supersede the regional lock correct?
As for Telus... When I unlock my WIND device, I assume it will be like my original where Telus voice worked but data was limited with 3G. This was due to the radio band for LTE being crippled in the device. I was told without rooting, I could still use the device with LTE but would have to FLASH the LTE modem through the ODIN software. When I look at the link which provides "flashable" modems, there is nothing there for my specific model.
AllGamer posted a modem (.bin) file for the Puerto Rico modem which supports LTE but confirmed with me this is not a file which can be flashed through ODIN and has to be packaged (or something to this affect). This is all too new to me and so if anyone could provide the steps to FLASH a compatible LTE modem onto my device without rooting so I have LTE support enabled, this would be great!
Thank you!
Issue is resolved. Currently, you cannot just flash the modem and must root and install a custom ROM supporting LTE. Once this device has been out long enough, the possibilities of modification will be greater but for now, my device from WIND works with Telus and has LTE data.
First, Telus, Rogers, Bell, Wind....all these carrier carry the same model of Note3 and running the same ROM
all you have to do is pull out your Wind sim card and do a factory reset. Then put in your Telus Sim card.
Phone will find Telus CSC setting and set it up as Telus phone.
As long your phone is sim unlock with Wind Mobile, any Canadian carrier should be working with your phone
About LTE, maybe there just don't have any LTE signal in the area, or your LTE setting has been turn off.
All you need to do is go into setting check under network and see if the phone is running GSM/CDMA/LTE or GSM/CDMA only, just switch between 2 and you will get your LTE with Telus LTE sim.
You don't have to worry about region code once your purchase unlocked online. region lock only apply when the phone never activate with local sim card and trying to activate with sim card from other countries. Just put in your Telus SIM and setting up the phone. Wind has this phone becuz it support AWS network, it doesn't mean the phone come with different modem!
Since you are not looking to root your phone or anything....there really no need for any flashing!
yuenluv said:
First, Telus, Rogers, Bell, Wind....all these carrier carry the same model of Note3 and running the same ROM
all you have to do is pull out your Wind sim card and do a factory reset. Then put in your Telus Sim card.
Phone will find Telus CSC setting and set it up as Telus phone.
As long your phone is sim unlock with Wind Mobile, any Canadian carrier should be working with your phone
About LTE, maybe there just don't have any LTE signal in the area, or your LTE setting has been turn off.
All you need to do is go into setting check under network and see if the phone is running GSM/CDMA/LTE or GSM/CDMA only, just switch between 2 and you will get your LTE with Telus LTE sim.
Since you are not looking to root your phone or anything....there really no need for any flashing!
Click to expand...
Click to collapse
You are only partially right with your response. Look at my other threads with how to get things functional. First, the phone is the same model for each Canadian carrier but as per the agreements between the carriers and Samsung, specific bands have been crippled. I unlocked my Note 3 so yes, the Telus SIM will be recognized upon a factory reset and will pick up the correct APN settings but since the LTE modem has been crippled, the device is great for voice but has sloooooow 3G data.
In order to get the device working with LTE, you must flash an LTE capable modem onto the device. Since this device is new on the market, no modem (.bin) file has been made flashable. At this point, the only option is to root your phone. Even when rooting and installing the Telus firmware (ROM), this will still not enable LTE as there's a safeguard in the device. Once the phone has been rooted, you must go into the regional settings for the device and select the carrier setting for the ROM you just installed. This will format the device and reboot with your carrier setting thus enabling LTE/WCDMA/GSM (auto connect) within your network settings menu. Only at this point, will you have true LTE capability otherwise, you're using a phone with hindered capabilities. Using Telus on 3G is like driving a Corvette with a Cavalier motor.
cellrama said:
You are only partially right with your response. Look at my other threads with how to get things functional. First, the phone is the same model for each Canadian carrier but as per the agreements between the carriers and Samsung, specific bands have been crippled. I unlocked my Note 3 so yes, the Telus SIM will be recognized upon a factory reset and will pick up the correct APN settings but since the LTE modem has been crippled, the device is great for voice but has sloooooow 3G data.
In order to get the device working with LTE, you must flash an LTE capable modem onto the device. Since this device is new on the market, no modem (.bin) file has been made flashable. At this point, the only option is to root your phone. Even when rooting and installing the Telus firmware (ROM), this will still not enable LTE as there's a safeguard in the device. Once the phone has been rooted, you must go into the regional settings for the device and select the carrier setting for the ROM you just installed. This will format the device and reboot with your carrier setting thus enabling LTE/WCDMA/GSM (auto connect) within your network settings menu. Only at this point, will you have true LTE capability otherwise, you're using a phone with hindered capabilities. Using Telus on 3G is like driving a Corvette with a Cavalier motor.
Click to expand...
Click to collapse
In the case, just download Telus ROM from samsungupdate and flash it with Odin3
yuenluv said:
In the case, just download Telus ROM from samsungupdate and flash it with Odin3
Click to expand...
Click to collapse
LOL :laugh: I have already rooted, flashed the Telus ROM and enabled LTE on my device. It is a little more complicated than what you've suggested but yes, you are partially right. Even with the Telus ROM, you need to ensure you've enabled the radio/modem for LTE capability. Thanks for your suggestions!

N910-S Network Mode

I recently bought an unlocked N910S but I seem to be having some problems with LTE (I live in the US) and can't seem to access the network mode menu in 'more networks' (the option is grayed out).
Some things I've tried:
Added the access point for my provider (Cricket/AT&T)
Booting in safe mode (no changes).
Flashing other regions' stock roms (N910T, N910V, N910T); Odin gets stuck at NAND wrtie start and only N910S stock rom seems to work.
Accessing Network Mode settings through the hidden menu (can get LTE if LTE17 or LTE All is selected but can't make or receive any calls).
Any help would be appreciated.
Thank you.
heyitsalger said:
I recently bought an unlocked N910S but I seem to be having some problems with LTE (I live in the US) and can't seem to access the network mode menu in 'more networks' (the option is grayed out).
Some things I've tried:
Added the access point for my provider (Cricket/AT&T)
Booting in safe mode (no changes).
Flashing other regions' stock roms (N910T, N910V, N910T); Odin gets stuck at NAND wrtie start and only N910S stock rom seems to work.
Accessing Network Mode settings through the hidden menu (can get LTE if LTE17 or LTE All is selected but can't make or receive any calls).
Any help would be appreciated.
Thank you.
Click to expand...
Click to collapse
Using ATT LTE now. Stock rooted to remove a bunch of Korean apps. Use band 5 preferred in the hidden Menu. Band 17 also LTE but couldn't make phone calls. ATT LTE band 2, 4, 5, 17

LS997 - Invalid sim card on Stock (Sprint) based roms

Hi guys,
Was able to get a LS997 in Canada. Carrier used is Fido.
Bootloader was unlocked using Dirty Santa.
When using stock based (sprint) rom, I always get an invalid sim error. This causes the phone/cell data not to work.
When using a lineage based rom, sim works perfectly and I get LTE data.
Is this behaviour normal?
Is there a way to make a non-sprint sim work on a stock rom?
Thanks
Update: Tried the WETA US996 rom on the device. Sim is recognized (since its the unlocked version), but LTE only works if I go in Network Mode, disable Global , enable LTE/GSM/UMTS, then set submode to "GSM/GPRS/EDGE only" or "UMTS/HSPA/HSPA+ Only" , then set it to "LTE/LEgacy 3GPP Multi".
This is a PITA since every time the connection is lost, these steps have to be repeated to get LTE data.
Any suggestion would be greatly appreciated.
I am running stock based rom to get the camera app and use the top screen.
Thanks
You have tried root, install twrp and flash file modem
PjLyTam said:
You have tried root, install twrp and flash file modem
Click to expand...
Click to collapse
TWRP is already installed and the roms used are rooted. I looked but am unable to find radios/modem for the ls997.
If running AOSP based roms I have no problems getting LTE to work.
Aren't the radio/modem separate from the roms themselves, or are they included with could be the reason it glitches like that?
the phone itself is not carrier unlocked thats why you get invalid sim. when you use lineage roms they dont check if phone is carrier unlocked
me2151 said:
the phone itself is not carrier unlocked thats why you get invalid sim. when you use lineage roms they dont check if phone is carrier unlocked
Click to expand...
Click to collapse
Thanks, that's what I thought!
Looking at the LTE specs for both phones:
LS997 : LTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 25(1900), 26(850), 41(2500)
US996: LTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 13(700), 17(700), 20(800), 25(1900)
Source: http://www.gsmarena.com/lg_v20-8238.php
Fido requires 700 MHz on Band 17, 1700/2100 MHz on Band 4, 2600 MHz on Band 7
Source: http://www.fido.ca/consumer/content/configure-unlocked-device-guide
Bands 4 and 7 are a perfect match, and band 17(700) is a subset of band 12(700), so the LS997 should be 100% compatible.
Source: https://en.wikipedia.org/wiki/LTE_frequency_bands
Would you happen to know which modifications I would have to bring to make it so that I can get LTE working out of the box like Lineage for 997 on a 996 unlocked based rom?
Thanks
Phillis said:
Thanks, that's what I thought!
Would you happen to know which modifications I would have to bring to make it so that I can get LTE working out of the box like Lineage for 997 on a 996 unlocked based rom?
Click to expand...
Click to collapse
You would have to use a us996 unlocked ROM with proper apns for your carrier in the apns list. The file is /system/etc/apns-conf.XML I believe
me2151 said:
You would have to use a us996 unlocked ROM with proper apns for your carrier in the apns list. The file is /system/etc/apns-conf.XML I believe
Click to expand...
Click to collapse
Edited my post above.
APN is properly set automatically on phone. As stated in the first (ERROR: second!) post, I can get LTE working, but need to set GSM/UMTS first then switch to LTE manually, and once the connection is dropped, this procedure has to be done again.
looked at the APN settings, they are the same as described by carrier.....anyone has an idea?
Phillis said:
looked at the APN settings, they are the same as described by carrier.....anyone has an idea?
Click to expand...
Click to collapse
like me2151 said, flash the us996 based rom. Its the unlocked version that will allow sim cards from other carriers to be used.
The ls997 roms are cdma based roms that dont use the sim card for anything but lte and is a locked slot unless device is uicc unlocked by the carrier.
There isnt a method currently to uicc unlock this device without the carrier sending the code to the device.
Team DevDigitel said:
like me2151 said, flash the us996 based rom. Its the unlocked version that will allow sim cards from other carriers to be used.
The ls997 roms are cdma based roms that dont use the sim card for anything but lte and is a locked slot unless device is uicc unlocked by the carrier.
There isnt a method currently to uicc unlock this device without the carrier sending the code to the device.
Click to expand...
Click to collapse
Hello,
I am currently on WETA US996, but as described in the second post, I cannot get LTE to work without disabling it first, switching to GSM/UMTS, then activating LTE.
Once I switch over to Wifi for a period of time, then switch back to cellular data (example: leaving the house), I lose all data and have to disable LTE again, enable GSM/UMTS, then reactivate LTE to get LTE data.
Phillis said:
Hello,
I am currently on WETA US996, but as described in the second post, I cannot get LTE to work without disabling it first, switching to GSM/UMTS, then activating LTE.
Once I switch over to Wifi for a period of time, then switch back to cellular data (example: leaving the house), I lose all data and have to disable LTE again, enable GSM/UMTS, then reactivate LTE to get LTE data.
Click to expand...
Click to collapse
have you tried a dif option such as global? or WGSM Etc? You may need to select a dif option.
 @ME2515 also gave the idea to edit your apns master file in system, so its always holding the apns for your carrier, in theory it would force the device to keep the settings as they become the "default" all the time, vs the devices default auto setting for example.
Team DevDigitel said:
have you tried a dif option such as global? or WGSM Etc? You may need to select a dif option.
@ME2515 also gave the idea to edit your apns master file in system, so its always holding the apns for your carrier, in theory it would force the device to keep the settings as they become the "default" all the time, vs the devices default auto setting for example.
Click to expand...
Click to collapse
Hello,
As explained in previous posts, the APNs are properly configured as per Fido settings automatically on the device. I triple checked to make sure all entries were correct.
LTE does work, but only going through the following steps: Go in Network Mode, disable Global , enable LTE/GSM/UMTS, then set submode to "GSM/GPRS/EDGE only" or "UMTS/HSPA/HSPA+ Only" , wait for a data connection, then change it to "LTE/LEgacy 3GPP Multi". Only then will LTE work, and once I switch to wifi, it won't get any LTE data when I disconnect from Wifi unless I go through that procedure again.
Am I really the only one with this problem?
Triple checked APN, it is correct. It's fetched autmatically from Fido when I connect to the network. Still no LTE unless I do the procedure above.
Reply in case someone encounters this issue. The APN setting for LTE was the culprit. I setup the APN as it it weren't an LTE device following the fido directives (using Fido-core-appl1.apn instead of LTEMOBILE.APN) and now get LTE connection when network is set to global.
Phillis said:
Hello,
I am currently on WETA US996, but as described in the second post, I cannot get LTE to work without disabling it first, switching to GSM/UMTS, then activating LTE.
Once I switch over to Wifi for a period of time, then switch back to cellular data (example: leaving the house), I lose all data and have to disable LTE again, enable GSM/UMTS, then reactivate LTE to get LTE data.
Click to expand...
Click to collapse
when installing wetarom to your LS997, what did you select as your device model in the installer? Unlocked US996 or Verizon VS995
einsteino said:
when installing wetarom to your LS997, what did you select as your device model in the installer? Unlocked US996 or Verizon VS995
Click to expand...
Click to collapse
ouch...that was long ago. I do not remember. I bought an unlocked US996 afterwards and sold the 997. Now with an S9+, which again gives problems..lol

[Q] US996 on Verizon issues

I have several issues with my US996 on Verizon, running LineageOS 14.1. (I'm not asking in the LOS threads because I figure more people here know the details of this device)
The main problem is I can't get SMS to work unless I set the preferred network type to CDMA or CDMA/EVDO only. I have been using the "VZWINTERNET" APN.
Any time I set an option that includes LTE (including the "Global" setting), SMS/MMS stops working.
Also, the signal indicator works strangely, oftentimes when I have strong signal the signal indicator shows 0 bars.
Lastly, many of the fields in Settings/phone info/SIM Status are blank, eg phone number, signal strength and service state. (Perhaps this is a CDMA/Verizon idiosyncracy since the SIM is not the primary auth to the legacy CDMA network?)
Do I need to flash the VS995 radio to this device to address these things? Is that even feasible? What about what Verizon calls "Advanced Calling" options? Ideally I would love to have VoLTE and WiFi calling as well.
Thanks.
Exabyter said:
I have several issues with my US996 on Verizon, running LineageOS 14.1. (I'm not asking in the LOS threads because I figure more people here know the details of this device)
The main problem is I can't get SMS to work unless I set the preferred network type to CDMA or CDMA/EVDO only. I have been using the "VZWINTERNET" APN.
Any time I set an option that includes LTE (including the "Global" setting), SMS/MMS stops working.
Also, the signal indicator works strangely, oftentimes when I have strong signal the signal indicator shows 0 bars.
Lastly, many of the fields in Settings/phone info/SIM Status are blank, eg phone number, signal strength and service state. (Perhaps this is a CDMA/Verizon idiosyncracy since the SIM is not the primary auth to the legacy CDMA network?)
Do I need to flash the VS995 radio to this device to address these things? Is that even feasible? What about what Verizon calls "Advanced Calling" options? Ideally I would love to have VoLTE and WiFi calling as well.
Thanks.
Click to expand...
Click to collapse
If youre device is abr0 you can use the patched dll version of lg up. https://forum.xda-developers.com/attachment.php?attachmentid=4233875&d=1502007613 to flash vs955 firmware. I have found that the this version VS9951BA01 is the one has fastboot mode and can get to recovery if you want to use dirty santa on it. or if you get to the you have 9 attempts of 10 to enter the passcode. you will then need to factor reset to get the data formated. But this link has the full instructions. https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
Drewc4xx said:
If youre device is abr0 you can use the patched dll version of lg up. https://forum.xda-developers.com/attachment.php?attachmentid=4233875&d=1502007613 to flash vs955 firmware. I have found that the this version VS9951BA01 is the one has fastboot mode and can get to recovery if you want to use dirty santa on it. or if you get to the you have 9 attempts of 10 to enter the passcode. you will then need to factor reset to get the data formated. But this link has the full instructions. https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
Click to expand...
Click to collapse
Thanks for that tip, I will read up on it a bit later.
The main reason I got a US996 rather than a VS995 is the lack of an officially unlockable bootloader on the VZW variant and having to use an exploit to unlock/root it which only works on old firmware leading me into a potential trap if the device ends up in a state I can't either unlock/root or return to stock from.
I already unlocked the US996 bootloader - will that get reset if I flash a stock kdz onto it?
I tried using LGup shortly after I got the phone but I was having problems getting it to work on my Win7 workstation, perhaps I had the wrong version..

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