Domestic Unlock Question - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

Hello Everyone,
I currently have a SPH-L720 that I performed the international sim-unlock on and currently use it in the UK. I plan to use it when I return to the states on Verizon, but am curious if I need to perform the Domestic Sim-unlock and change the LTE bands under the hidden dialer menu or should it work automatically since the phone is currently carrier unlocked and then only need to change the LTE bands? Thanks!

hatteroo said:
Hello Everyone,
I currently have a SPH-L720 that I performed the international sim-unlock on and currently use it in the UK. I plan to use it when I return to the states on Verizon, but am curious if I need to perform the Domestic Sim-unlock and change the LTE bands under the hidden dialer menu or should it work automatically since the phone is currently carrier unlocked and then only need to change the LTE bands? Thanks!
Click to expand...
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It doesn't support the Verizon LTE bands to begin with. Pretty sure you will never have 4G, if I'm wrong kindly point me to the info.
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bilgerryan said:
It doesn't support the Verizon LTE bands to begin with. Pretty sure you will never have 4G, if I'm wrong kindly point me to the info.
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Ah ok I was under the assumption that I was able to modify my LTE bands as I saw on an S5 tutorial.

hatteroo said:
Ah ok I was under the assumption that I was able to modify my LTE bands as I saw on an S5 tutorial.
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Would you mind linking that tutorial? As far as I know you can only change them to bands that are already supported by the device.

bilgerryan said:
Would you mind linking that tutorial? As far as I know you can only change them to bands that are already supported by the device.
Click to expand...
Click to collapse
http://forum.xda-developers.com/note-4/general/enabling-additional-lte-bands-att-t-t3160864
http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
http://www.xda-developers.com/add-frequency-bands-qualcomm/

Related

[Q] Unlock SPH-L720 Baseband L720VPUFNG2?

Has anyone successfully unlocked the SPH-L720 from Sprint with this newest firmware? I found instructions on another thread for unlocking the L720, but they are for Android 4.2.2 and do not work with 4.4.2. When I attempted to downgrade the modem, it bricked the phone. I've managed to get the correct firmware re-installed and un-brick the phone, but now I'm back to square one.
The phone is rooted, I just need to carrier unlock it from Sprint and remove the CDMA lock so that I can use a GSM sim (attempting to use the phone with NET10 which uses T-Mobile/AT&T compatible sims).
I'm having the same issue here. Let me know if you got through. I want to use my Galaxy s4 outside the USA on a GSM network.
same issue
I need to know also my contract is about over will sprint really unlock it for me I am rooted or can I go to a MDC baseband version and do the unlock codes....... please help ty
---------- Post added at 02:48 AM ---------- Previous post was at 01:59 AM ----------
Howiewowie said:
I need to know also my contract is about over will sprint really unlock it for me I am rooted or can I go to a MDC baseband version and do the unlock codes....... please help ty
Click to expand...
Click to collapse
no problem this told me what to do http://forum.xda-developers.com/showthread.php?t=2415587 soon as I get away from my contract I will be trying thx
Bumping this to see if anyone has figured this out?
I've got a GoogleFi data only card and would love to get my S4 back online but it seems I'm SOL since I'm on L720VPUFNG2.
Someone on reddit said they figured it out but hadn't provided the details (nor replied to PMs), I don't want to brick my phone as it's still an excellent backup.
Is unlocking an L720 on NG2 possible?
Please I need this too
Have you guys tried the unlocking thread in the General section?
http://forum.xda-developers.com/showthread.php?t=2530610
Or this one?
http://forum.xda-developers.com/showthread.php?t=2415587
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Questions About Basebands, Mobile Networks and Unlocked Devices

I have a few concerns to address. I recently bought the Galaxy i9505 (or in my case, the Sprint SPH-L720T version). The device comes unlocked with stock firmware/software, Lollipop 5.0.1 baseband OH2.
Now I will try to make this as clear as possible. We don't have the Sprint network here, I'm on Vodafone. I just flashed an official ROM from Sammobile with a different baseband version (this one) because I can't find the version that my phone came pre-installed with. I upgraded to address the StageFright and widgets app draw issue that was on the stock ROM.
Now my question is: by flashing a different baseband version, will I lose the ability to have an unlocked device and incur roaming charges on my network, or is the unlocked to work on multiple networks feature on a firmware level so I don't have to worry about it?
Thanks.
Grumpy Cat said:
I have a few concerns to address. I recently bought the Galaxy i9505 (or in my case, the Sprint SPH-L720T version). The device comes unlocked with stock firmware/software, Lollipop 5.0.1 baseband OH2.
Now I will try to make this as clear as possible. We don't have the Sprint network here, I'm on Vodafone. I just flashed an official ROM from Sammobile with a different baseband version (this one) because I can't find the version that my phone came pre-installed with. I upgraded to address the StageFright and widgets app draw issue that was on the stock ROM.
Now my question is: by flashing a different baseband version, will I lose the ability to have an unlocked device and incur roaming charges on my network, or is the unlocked to work on multiple networks feature on a firmware level so I don't have to worry about it?
Thanks.
Click to expand...
Click to collapse
You will lose your domestic/international unlock of you upgrade the Baseband unless it was actually unlocked by Sprint.
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bilgerryan said:
You will lose your domestic/international unlock of you upgrade the Baseband unless it was actually unlocked by Sprint.
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Click to collapse
Yeah, I kinda figured that would be the case. Good thing I made a backup.
I suppose you wouldn't know where I can get a StageFright Patch for the OH2 version by any chance?

SPH-L720T stuck on Global??

Hello everyone. I recently bought a few Galaxy S4's to resell. I kept and unlocked one, then sold the others on ebay. One of the buyers just contacted me and told me that they cannot get the phone working on their sprint account because Sprint says the phone is stuck on global mode. What is global mode and is there any easy way I can walk them through correcting it? I dont rememebr seeing a global setting in the *#0011# menu.
Thanks in advance.
Bklynrx7 said:
Hello everyone. I recently bought a few Galaxy S4's to resell. I kept and unlocked one, then sold the others on ebay. One of the buyers just contacted me and told me that they cannot get the phone working on their sprint account because Sprint says the phone is stuck on global mode. What is global mode and is there any easy way I can walk them through correcting it? I dont rememebr seeing a global setting in the *#0011# menu.
Thanks in advance.
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Click to collapse
I would tell them to Odin the stock software from www.sammobile.com that should reset everything to stock. Global mode is where it is unlocked and can use either a CDMA or GSM signal (as most of the world uses GSM not CDMA, hence the name global).
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bilgerryan said:
I would tell them to Odin the stock software from www.sammobile.com that should reset everything to stock. Global mode is where it is unlocked and can use either a CDMA or GSM signal (as most of the world uses GSM not CDMA, hence the name global).
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Click to collapse
Thanks for the reply. I thought I used ODIN to format this phone before I shipped it, but I could be wrong. How can I make sure that the phone is able to work on sprint before I try to sell it again?
Bklynrx7 said:
Thanks for the reply. I thought I used ODIN to format this phone before I shipped it, but I could be wrong. How can I make sure that the phone is able to work on sprint before I try to sell it again?
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Click to collapse
Yes, it does that as well... As for the last question, I don't know. Kind of hard to tell on an unactivated phone. You could try Freedompop, it's free and they use the Sprint network. If it works on there it should work on Sprint.

On nexus 4 7.1.1 android LTE?

Hello , in nexus 4 cm14 (android 7.1.1) working LTE if working please help my!
Danas54 said:
Hello , in nexus 4 cm14 (android 7.1.1) working LTE if working please help my!
Click to expand...
Click to collapse
I'm trying to flash different modems, but doesn't work
merafly said:
I'm trying to flash different modems, but doesn't work
Click to expand...
Click to collapse
My too... :/
I know t-mobile network on nexus 4 lte settings don't stick reverts back to hspa+ In an area I know has 4g and it switches back pretty quickly so maybe that is your issue
Sent from my iPhone using Tapatalk
Help!!!!!!!
Danas54 said:
Help!!!!!!!
Click to expand...
Click to collapse
Hello.
The Nexus 4 never officially supported LTE. Some people discovered that there was partial support in the chipset and figured out how to enable it. However it only works on a limited frequency range and you have to know if the cell sites near you have the right frequency band. I never bothered figuring it out for myself as HSDPA+ is fast enough for me and I only have a small amount of monthly data to use anyway.
You need to use older versions of the baseband/modem as the most recent ones disabled the possible LTE modes. Whether older versions of the baseband are compatible with community ROMs based on 6.0 and up I don't know. I haven't seen any discussion for a while now. Phones with good supported LTE have been common for a long time and I suspect anyone who really needed LTE has moved on.
Band 4 LTE works just fine, problem is, I think Tmo in the US is the only carrier that supports it (thankfully I am in the US and on T-mo in that case). Any ROM with a Hybrid Modem will work. I am on latest 7.1.1_r4 Nitrogen OS and is works fine: http://forum.xda-developers.com/nexus-4/development/rom-nitrogen-os-n-substratum-10-09-2016-t3459341
Make sure LTE shows as enabled: http://forum.xda-developers.com/nexus-4/general/updated-zip-one-lte-enabler-flash-one-t2358931
Hi
Good news!, in latest 7.1.1_r4 Nitrogen OS, this ROM has build.prop modified by default with LTE option enabled in mobile network menu. But this ROM has modem device only for 3G, so i flashed this file and 4G LTE it's back again on band 4!
Modem file: https://mega.nz/#!Yg8AUDQa!bjCZ52WivDwHqN1wrMNNTRRq7ElVI0Qj9VhjG50AOuE
Greetings from Chile
PD: I attach some pictures
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Unlocked S10+ CSC question

Hello all,
I bought an unlocked S10+ US version and I need to do a hard reset. Which is the correct firmware version to download? I use my phone on ATT and Tmobile.
TIA!
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@Vertig0
SM-G975U1 and its firmware (XAA) will provide the best connectivity if you plan to regularly exchange SIMs.
Is it specific carrier-related features you're looking for?
AHE_XDA said:
@Vertig0
SM-G975U1 and its firmware (XAA) will provide the best connectivity if you plan to regularly exchange SIMs.
Is it specific carrier-related features you're looking for?
Click to expand...
Click to collapse
I just want to make sure I get all the carries features for voice and data.
thanks.
Vertig0 said:
I just want to make sure I get all the carries features for voice and data.
thanks.
Click to expand...
Click to collapse
So there a few caveats when running an unlocked Samsung handset on XAA firmware; you may or may not get specific features from your Carrier.
So if you use or value one carrier's feature set over the other than flash their firmware and convert your phone from SM-G975U1 to SM-G975U.
In exchange, you'll get the carrier bloat but it is can be disabled and some of it uninstalled.
AHE_XDA said:
So there a few caveats when running an unlocked Samsung handset on XAA firmware; you may or may not get specific features from your Carrier.
So if you use or value one carrier's feature set over the other than flash their firmware and convert your phone from SM-G975U1 to SM-G975U.
In exchange, you'll get the carrier bloat but it is can be disabled and some of it uninstalled.
Click to expand...
Click to collapse
Do you know which features will I lose if I run XAA?
Vertig0 said:
Do you know which features will I lose if I run XAA?
Click to expand...
Click to collapse
XAA is the default software that ships with any unlocked USA-specific Samsung device.
You may or may not have access to VoLTE or WiFi Calling.
AHE_XDA said:
XAA is the default software that ships with any unlocked Samsung device.
You may or may not have access to VoLTE or WiFi Calling.
Click to expand...
Click to collapse
thanks a lot! I have a better understanding now...
Do you know where I can download the firmware for free? so far all the websites I found you have to pay. ex SamMobile ,imei.info
Vertig0 said:
thanks a lot! I have a better understanding now...
Do you know where I can download the firmware for free? so far all the websites I found you have to pay. ex SamMobile ,imei.info
Click to expand...
Click to collapse
Absolutely.
This is what I use exclusively:
https://forum.xda-developers.com/galaxy-s9/how-to/tool-frija-samsung-firmware-downloader-t3910584
I attached a screenshot to help you set it up.
AHE_XDA said:
Absolutely.
This is what I use exclusively:
https://forum.xda-developers.com/galaxy-s9/how-to/tool-frija-samsung-firmware-downloader-t3910584
I attached a screenshot to help you set it up.
Click to expand...
Click to collapse
awesome! now I can finally put my iphone to rest... thanks for all the help.

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