Sprint V20: Carrier Swap Help Requested (Post covers bootloader, ESN, everything) - LG V20 Questions & Answers

Phone Information
Phone Number: Last owner shows up, want this cleared
Android Version: 7.0
Build Number: NRD90M
Software Version: LS997ZV6
Security software: MDF V2.0 release 4
OEM Unlock (On)
USB Debugging (On)
PROBLEM: A sprint V20 was brought to me to have the carrier swapped from [Sprint] to [Cricket]. So far sounds easy right? Read below...
Please Review the following of my step by step :
ESN IS LISTED AS CLEAR ON SWAPPA, please note that means this device "should" not have issues (first thing I checked)
Under APN settings there is no way to +add APN as there is with every other phone I have touched. Is this because it was a lease?
I considered perhaps rooting the phone, throwing on a custom ROM, and therefore hopefully having that added. Looks like bootloader is locked.
Of course, I am 1 security patch too late, DIRTYSANTA will NOT work on my firmware.
Searched everywhere, seems as though you CAN NOT roll this back.
Next I looked at using Chimera Tool to roll back the firmware. I cannot seem to find a ZV5 firmware file.
Next I looked at using chimera for IMEI repair. I figured if I change the IMEI just long enough to modify the APN settings then revert it back, I would be golden. Chimera gave me an error of not having access to the ports. I tried to dial in the following codes to enable port check but none have access to the "hidden menu". 277634#*#, 3845#*997#, *#546368#*997#. I tried to factory reset the phone, no luck.
I was able to use ##DIAG# (##3424#) and enable DIAGNOSTIC mode, yet this seemed to do nothing about ports.
I was able to enter ##DEBUG (##33284#) but there is no ability to ediit in here. Although at one point in time I was at a screen asking for an SVC code, no idea how to get back there though.
Tried to do a "fix" on Chimera, which is the same as refurbish on LG Up (I need the phone in factory condition), but apparently this device does not support refurbish mode. So flashing software is not wiping anything.
I cant seem to boot it into recovery, for god knows why.
QUESTIONS I HAVE
How do I completely wipe the phone of all user data?
How do I open these ports since the codes provided bring up no menu?
Since sprint is the only one recognizing the bad ESN, is this device able to even swap carriers?
What reason would APN not have an ability to edit or modify?
What additional tactics can I use to get my goal accomplished?
Hopefully we can brainstorm together

Please refer to this thread, it should work and do what you need to withthat apk. I belive its under IOT menu then under lte and put it in lab mode and turn on all the bands plus adding APN .. Im not to sure but ask the OP im sure he is way more helpful... asfar as adding the apn without this you need root to be able to do this and for nonroot i believe you must use ADb commands to tgecdevice and add them from there. there is threads oithere....
https://forum.xda-developers.com/v20/help/lg-v20-cdma-to-lte-gsm-switch-via-t3602409

if the esn is now listed as unpaid, or lost /stolen cricket will not be able to add the esn to their system either. its a nation wide list that blacklist's the device.
Unfortunately changing the apns etc wont fix this.
ZV6 currently does not have a way to be rolled back, so there is 0 root/custom options.
APNS have been blocked by sprint for some time now and using some root methods they can be unlocked, in your case you wont be able to access them due to being unable to root.
Tools like CDMA WORKSHOP, QPST, QXDMA, etc may be able to write the apns and such you would need, if you could get the msl for the device, but if it is no longer active, and the device has a "bad esn" then you wont be getting that from the carrier. I dont believe youll be able to access the nv items etc without it and probably not going to be easy to locate the msl.
##diag# is how youll talk to the device on cdma workshop etc, youll need to go to your installed devices and change its com port to a port thats free and remember the port as the tools need you to select that port, but again they wont work for you without the msl anyways.
so in a nutshell, it looks like your best option is to sell the phone as parts only, or if recently purchased on swappa and it was listed good esn and its not then file a report at-least to make swappa aware.

Team DevDigitel said:
if the esn is now listed as unpaid, or lost /stolen cricket will not be able to add the esn to their system either. its a nation wide list that blacklist's the device.
Unfortunately changing the apns etc wont fix this.
ZV6 currently does not have a way to be rolled back, so there is 0 root/custom options.
APNS have been blocked by sprint for some time now and using some root methods they can be unlocked, in your case you wont be able to access them due to being unable to root.
Tools like CDMA WORKSHOP, QPST, QXDMA, etc may be able to write the apns and such you would need, if you could get the msl for the device, but if it is no longer active, and the device has a "bad esn" then you wont be getting that from the carrier. I dont believe youll be able to access the nv items etc without it and probably not going to be easy to locate the msl.
##diag# is how youll talk to the device on cdma workshop etc, youll need to go to your installed devices and change its com port to a port thats free and remember the port as the tools need you to select that port, but again they wont work for you without the msl anyways.
so in a nutshell, it looks like your best option is to sell the phone as parts only, or if recently purchased on swappa and it was listed good esn and its not then file a report at-least to make swappa aware.
Click to expand...
Click to collapse
Is the SPC the same as the MSL

williamschromebook said:
Is the SPC the same as the MSL
Click to expand...
Click to collapse
Yes

What if I have the SPC?
Sent from my HTC 0PJA2 using XDA Labs

Related

Droid X crashed, uh oh.

Got the Droid X to activate it on Alltel like I did very successfully with my Eris.
Installed HW virtual serial port software, created the virtual serial port, phone was detected and showing up correctly in QPST, went directly to CDMA Workshop and ripped the NV file from the phone, edited all the NV information to alltel's 3G provisioning with a HEX translator, uploaded the NV file to the phone and uploaded the Alltel PRL... all seemed well. Restarted the phone, it now shows no service. When I go to Settings, it tells me the baseband version is "unknown" and it doesnt know the ESN or anything, that isn't good. I tried reconnecting to CDMA workshop, if I try to restore original NV file, it doesn't know the SPC anymore so it doesn't allow it, SPC 000000 isn't recognized now. How can I recover the radio ? I tried restoring it (hard reset) through the settings, security menu AND the Power+home buttons way. After restoring, still no service and SPC is still incorrect, how do I get the radio back to default values ? CAn I reflash the phone? Anyone know where the factory rom is so I can do this ? Ah man, help me please :O
Other than that, I guess I'll have to have motorola take a look at it since I don't have it signed up to a verizon account, my bet is that verizon won't help me. thanks
Did a system "full reboot" help any??
No it hard resets normally and reboots to the welcome wizard, functions perfectly, but still "No Service" and "unknown" baseband in the settings...
I'm thinking I'll have to have the stock Rom file to flash my phone, hopefully this will flash the factory baseband too or maybe tomorrows update will fix my broken baseband, looks like from the information, it updates the baseband, wonder if it will update a totally dysfunctional baseband?
Yikes,.. this blows.
I don't understand why you didn't back up the rom if you were attempting something like this.
There is a Droid X update coming pretty soon, so I'm sure by that time the new rom will be available.
Well, I backed up the NV items, I figured that would be sufficient, guess not, Trial and error I suppose, but you're right.
What software do I use to back up the rom of the Droid X ? I know there is a key sequence on the Droid, what about the droid X ? The recovery screen (Power + Home) brings me to a menu allowing system recovery/wipe install update.zip from memory card, and thats it.
I have a buddy right here in town down the block that got the droid x with me, can I back the rom up off of his and flash that rom to my phone?
Help is SO appreciated...
EDIT
The system dumps that are floating around the web, is that a ROM backup ? http://www.droidxforums.com/forum/droid-x-hacks/114-new-droid-x-retail-dump-straight-out-pot.html
Can I put that file in the SD card as update.zip and flash it?
stevey500 said:
Got the Droid X to activate it on Alltel like I did very successfully with my Eris.
Installed HW virtual serial port software, created the virtual serial port, phone was detected and showing up correctly in QPST, went directly to CDMA Workshop and ripped the NV file from the phone, edited all the NV information to alltel's 3G provisioning with a HEX translator, uploaded the NV file to the phone and uploaded the Alltel PRL... all seemed well. Restarted the phone, it now shows no service. When I go to Settings, it tells me the baseband version is "unknown" and it doesnt know the ESN or anything, that isn't good. I tried reconnecting to CDMA workshop, if I try to restore original NV file, it doesn't know the SPC anymore so it doesn't allow it, SPC 000000 isn't recognized now. How can I recover the radio ? I tried restoring it (hard reset) through the settings, security menu AND the Power+home buttons way. After restoring, still no service and SPC is still incorrect, how do I get the radio back to default values ? CAn I reflash the phone? Anyone know where the factory rom is so I can do this ? Ah man, help me please :O
Other than that, I guess I'll have to have motorola take a look at it since I don't have it signed up to a verizon account, my bet is that verizon won't help me. thanks
Click to expand...
Click to collapse
why not use QXDM to modify the ESN?
Worth a shot...
You can try using the motorola troubleshooter. Its what they use to update your phone anyways and since the new update came out you might be able to install over what you did...I cant post a link because Im new but follow the instructions below and it will walk you through the update process via computer. I figure with a phone thats not working its worth a shot.
Go to Motorola's website and click the droid advert right on the left side of the screen.
Under the "Support" tab in the upper right hand corner is another tab called "Owner Support" click on that.
On the left hand side there are more tabs so this time click on "Update My Software"
It will give you a list of options, choose "Via Computer"
From here it will check your computer for their software and prompt you to download it. Its the troubleshooting software and it will ask you a few questions, its also what they use to update your software via computer so it may be capable of flashing your phone for you. Best of luck and let us know what the end result is.
I haven't tried either of these... but I'm about to start flashing a droid X to cricket and bookmarked these posts in case I mess something up. Proceed with caution as I have no first hand experience with these.
I'm still trying to get a handle on if the service programming parameters (the spc, MDN, MIN, SID, etc.) are updated as part of baseband updates, it sounds like they are since they are saying the device needs to be re-activated after applying either of these updates.
If a baseband update refreshes the service programming parameters here are the two ways I've found of updating the baseband:
Here's a link to a post for updating the baseband portion of your device (without updating the ROM):
http://alldroid.org/Default.aspx?tabid=62&g=posts&t=246
I don't know if this will work on a device that doesn't have a valid baseband prior to the update. Regardless, if your phone is bricked this may be a valid option to try.
There is also a 2.1 SPL file floating around which is the entire system image, the baseband and the rom. You will need to use rsdlite to apply this image to your phone. DO NOT APPLY THIS IF YOU ARE RUNNING FROYO.

Blocked Galaxy S5 SM-G900R6

Hi People.
First of all, to the admins, I verify my question over the forum. Found some post about my model SM-G900R6 , but didn’t found an answer to what I need. I you believe this post have to be deleted, just do it, and I am sorry for any trouble.
Well,
I have a Samsung Galaxy SM-G900R6. I bought it in the street. I verify the model info and it is a CMDA phone. I verify some web pages for the IMEI and it didn’t appear in blacklist. But I believe somehow the company in which this phone was working (whom I don’t know which is) is blocking the phone.
The phone right now is working using Wi-Fi. And:
1. Don’t let me use the codes or the service menu.
2. Don’t show me the network operator’s option.
3. Don’t show me any way to set the APN.
Things that I did:
1. I rooted it. And found some apps to try to change network or make thenetwrk operator working. None of them works for me.
2. I try to install a Custom firmware (cyanogenmod 13, and made the backup with TWRP Recover, wipe all, and flashing it. But it didn’t work.
3. Flashing OTA rom from other galaxy 5 models, none of them works.
What I believe is happening?
1. I believe my phone IMEI is blocked on the CMDA networks in my area.
2. I think the best way is to change that IMEI. But I tried a lot of methods but none of them works.
What I want?
1. I just want to connect the phone to a carrier.
Any clues or Help?
Thanks
Changing the IMEI is illegal and will not be allowed to be discussed on XDA IIRC

idoneapps.com Domestic Sim Unlock for SM-G900P (Review)

Hello this thread is my experience and review of idoneapps.com Sprint S5 domestic sim unlock.
REQUIREMENTS
-Running Lollipop or higher (I was on stock rooted 6.0.1)
-must be rooted
-Different carrier sim, for example I have At&t.
-Around $30, I know paid ughhh but honestly it's worth every penny.
Okay so here is my story that lead to this. I repair cellphones for a living and we do a lot of business with Verizon, well one of the workers offered me a Sprint S5 for $50. It was tempting as it was in great condition, the problem? I have AT&T. Anyways I bought the phone on impulse, as if I couldn't use it, I could still tweak and develop on it. So win/win for me.
Well after tons of research to domestically unlock the SM-G900P, I found idoneapps.
idoneapps have created an apk that will permanently sim unlock your Sprint and Boost mobile devices. (Check to see device compatibility on their website.)
Go to idoneapps.com
Go to Android unlocking services
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Then go to "Samsung Phone unlock for final user" and hit "download unlock apk"
Install the apk and open the app.
Now that the app is opened, you now have to buy your license, when you confirms your purchase, it will send a confirmation .zip to your email. Open that .zip and it will grant you the unlock permission.
Now go back to the unlock apk, and go ahead and hit the unlock button, the phone should reboot twice, the first time it reboots, go back into the app so it can reboot for the second time.
After that you should now be unlocked, if you are rooted, the app will automatically install APNs, but if not then you can go ahead and add your APN.
The app does other helpful things as well.
It debrands your phone as well. Getting rid of hands free activation.
CONS
Ahh there has to be a catch somewhere right?
Because the sprint S5 is a CDMA phone, it doesn't get all the benefits of a GSM carrier. The only downside that I have personally experienced is that I don't get 4G or LTE.
At&t is very strong in my area so I'm fine with just 3g. Also if you run a custom ROM with Xblast tools, you can throttle your 3g.
Anyways, it's great for unlocking your phone to use with At&t or T-Mobile.
http://uploads.tapatalk-cdn.com/20160625/dc1823c5dcfa737c87d2bfdf820983installation
Also you are free to flash as many custom/stock ROMs/recoveries as you like as its permanent. (Proof in screenshots as I'm now running CM13) There are ways to relock the device if you aren't careful, but that requires a special dialer code and or messing with service mode. But you have unlimited unlocks incase that ever happens.
Also for some reason it says disconnected for my network but I assure you that I get calling/data/texting, I believe that is from "tricking" the phone during the unlock installation.
Hopefully this guide helps someone else!
Sent from SM-G900Pkltespr
the unlock does indeed work on the g900p as ive unlocked 2 of them personally via idoneapps. I also only get the hspa connection, but that is very likely due to the LTE bands preselected on the phone. I have tried to do the stuff in this thread, but ive not got qpst to find the diag port on the g900p. Ive only half a$$ed in my attempts, so im not convinced that it cant be done, quite the opposite actually. Modder beware, if you brick your phone trying this, its not my fault, but its been said to work on many phones
youdoofus said:
the unlock does indeed work on the g900p as ive unlocked 2 of them personally via idoneapps. I also only get the hspa connection, but that is very likely due to the LTE bands preselected on the phone. I have tried to do the stuff in this thread, but ive not got qpst to find the diag port on the g900p. Ive only half a$$ed in my attempts, so im not convinced that it cant be done, quite the opposite actually. Modder beware, if you brick your phone trying this, its not my fault, but its been said to work on many phones
Click to expand...
Click to collapse
I actually managed to edit using qpst/qxdm and got those LTE values to stick after reboot. But with all my persistence, no LTE. I've done build.prop edits as well but soon learned that the firmware I'm on cannot edit GSM properties on build.prop. at least not for g900p
SM-900P CM13
youdoofus said:
the unlock does indeed work on the g900p as ive unlocked 2 of them personally via idoneapps. I also only get the hspa connection, but that is very likely due to the LTE bands preselected on the phone. I have tried to do the stuff in this thread, but ive not got qpst to find the diag port on the g900p. Ive only half a$$ed in my attempts, so im not convinced that it cant be done, quite the opposite actually. Modder beware, if you brick your phone trying this, its not my fault, but its been said to work on many phones
Click to expand...
Click to collapse
Also are you rooted? I can provide some information on how to connect to qpst. I had a really difficult time trying to get it to recognize my device. (Assuming you are on marshmallow)
SM-900P CM13
im very rooted LOL i rooted it 3 days after getting it, which was 7 days after release 2+ years ago. I wasnt too keen on MM, so im still using ol' reliable MOAR 7.0. And yeah, id appreciate the heads up on what part im missing!
youdoofus said:
im very rooted LOL i rooted it 3 days after getting it, which was 7 days after release 2+ years ago. I wasnt too keen on MM, so im still using ol' reliable MOAR 7.0. And yeah, id appreciate the heads up on what part im missing!
Click to expand...
Click to collapse
Well I'm not too sure if this is the right answer for you considering the software differences, I'm running windows 8 with Marshmallow based 6.0.1 CM13
What you'll need:
Terminal emulator
QXDM
QPST
EFS Professional
NV Calculator app
USB cable (no hub)
Patience
So I found it to be rather difficult to enable diag mode for the S5 with marshmallow as its so new that hardly anybody found a method to successfully activate it.
1. Turn on usb debugging in developer settings
2.Set USB to DM-Modem-Adb
-Open terminal app
Use the following commands
su
setprop sys.usb.config diag,acm,adb
Now verify w/ command
getprop sys.usb.config
It should tell you if the commands did indeed stick. (diag,acm,adb)
This method should install a driver if you are connected to a usb with debugging on.
METHOD 2
Plug in your phone to your pc and open EFS Professional and click on the Samsung Tools tab.
You then should see a pull down setting to change the usb mode to DM-MODEM-ADB. This method should automatically install a driver and enforce diag/adb server (if your diag driver hasn't yet been installed.) Which is where I had the most difficulty in getting it to connect to my PC. EFS needs to berunning and be ready/connected before you open QXDM.
3. Open QXDM (Run as administrator)
(DISCLAIMER! It's important to understand that you should run QXDM AFTER you successfully connected to DM-MODEM-ADB server in EFS Professional)
-In QXDM hit options > communication
You should see a COM port that is opened up and active. If this isn't working. Restart process 1/2 from complete scratch.
4. Click the target port pulldown menu in the communications window and select the COM channel that is displayed in PortType that is active. After hitting the "OK" button, close the window.
Now you should be able to read and write your nv memory.
5. Click View > Common > Nv browser.
Use NV calculator app for the bands you need. The phone itself only has 850-2100mhz through WCDMA.
I would advise to only edit 6828/6829. If it says you need to edit RF band config, in my version of QXDM reads 1877 as a CDMA property, not a GSM or WCDMA property. While messing with this I learned that it might possibly be something of unimportance to the mod, correct me if I'm wrong.
Try it at your own risk.
If you can't still connect to your pc, close all your programs. And start over every time it doesn't work.
Also I noticed that there is never an actual diag driver in device manager like there used to be in windows 7. Once in diag mode, device manager should recognize the device as COM. And possibly as a Modem as well.
Make the edits and reboot when you are done. Please report back with results as I have the exact phone and would like to see if it works to get a final answer if this can actually be done. Test around with your hiddenmenu and apns to see if you can get it.
If you have any questions, report back here so if there is a solution it can help others!
SM-900P CM13
Also check here
http://forum.xda-developers.com/showthread.php?t=2948822
SM-900P CM13
xholomovementx said:
well i'm not too sure if this is the right answer for you considering the software differences, i'm running windows 8 with marshmallow based 6.0.1 cm13
what you'll need:
Terminal emulator
qxdm
qpst
efs professional
nv calculator app
usb cable (no hub)
patience
so i found it to be rather difficult to enable diag mode for the s5 with marshmallow as its so new that hardly anybody found a method to successfully activate it.
1. Turn on usb debugging in developer settings
2.set usb to dm-modem-adb
-open terminal app
use the following commands
su
setprop sys.usb.config diag,acm,adb
now verify w/ command
getprop sys.usb.config
it should tell you if the commands did indeed stick. (diag,acm,adb)
this method should install a driver if you are connected to a usb with debugging on.
Method 2
plug in your phone to your pc and open efs professional and click on the samsung tools tab.
You then should see a pull down setting to change the usb mode to dm-modem-adb. This method should automatically install a driver and enforce diag/adb server (if your diag driver hasn't yet been installed.) which is where i had the most difficulty in getting it to connect to my pc. Efs needs to berunning and be ready/connected before you open qxdm.
3. Open qxdm (run as administrator)
(disclaimer! It's important to understand that you should run qxdm after you successfully connected to dm-modem-adb server in efs professional)
-in qxdm hit options > communication
you should see a com port that is opened up and active. If this isn't working. Restart process 1/2 from complete scratch.
4. Click the target port pulldown menu in the communications window and select the com channel that is displayed in porttype that is active. After hitting the "ok" button, close the window.
Now you should be able to read and write your nv memory.
5. Click view > common > nv browser.
Use nv calculator app for the bands you need. The phone itself only has 850-2100mhz through wcdma.
I would advise to only edit 6828/6829. If it says you need to edit rf band config, in my version of qxdm reads 1877 as a cdma property, not a gsm or wcdma property. While messing with this i learned that it might possibly be something of unimportance to the mod, correct me if i'm wrong.
Try it at your own risk.
If you can't still connect to your pc, close all your programs. And start over every time it doesn't work.
Also i noticed that there is never an actual diag driver in device manager like there used to be in windows 7. Once in diag mode, device manager should recognize the device as com. And possibly as a modem as well.
Make the edits and reboot when you are done. Please report back with results as i have the exact phone and would like to see if it works to get a final answer if this can actually be done. Test around with your hiddenmenu and apns to see if you can get it.
If you have any questions, report back here so if there is a solution it can help others!
Edit* make sure you connect the active state and that is reading your baseband under phone.
Sm-900p cm13
Click to expand...
Click to collapse
sm-900p cm13
Right on man! Thanks!! I'll have to give this a whirl later today. And as for the differences in Roms, I have zero issue flashing a ROM to get this working because it should stick once complete and I can then go back to moar if I want. Thanks again!
Sent from my SM-G900P using XDA Free mobile app
OK, so I tried several times and I can't get the diag port to show. Tried different modems and nothing. I flashed the modem with the idone unlock app but not with Odin. Might try that later. I know this is a few weeks back now, life got a tad hectic for me to spend much time on the computer and fiddling with odin
Thanks, this indeed worked. It's worth the money!!
I was able to unlock mines using the free version of idoneapps 3.1.8 (GTv3.1.8) just fine, however I haven't tested mines to see if it would work on AT&T. I just purchased an AT&T Service and will be getting my SIM card by mail in a few more days.
Does the free version of idoneapps 3.1.8 unlocks it domestically, or is it just an international unlock?
FNetV1 said:
I was able to unlock mines using the free version of idoneapps 3.1.8 (GTv3.1.8) just fine, however I haven't tested mines to see if it would work on AT&T. I just purchased an AT&T Service and will be getting my SIM card by mail in a few more days.
Does the free version of idoneapps 3.1.8 unlocks it domestically, or is it just an international unlock?
Click to expand...
Click to collapse
I have not tried it, but I have read that for domestic unlock to work, the steps are the same except that you also have to turn GCF settings off. It can be done by the IOTHiddenMenu. The steps are found here: https://idoneapps.com/settings.php. hopefully it works
FNetV1 said:
I was able to unlock mines using the free version of idoneapps 3.1.8 (GTv3.1.8) just fine, however I haven't tested mines to see if it would work on AT&T. I just purchased an AT&T Service and will be getting my SIM card by mail in a few more days.
Does the free version of idoneapps 3.1.8 unlocks it domestically, or is it just an international unlock?
Click to expand...
Click to collapse
This is a ridiculous question, but when I looked online and searched for the free version of idoneapps 3.1.8 and downloaded, the app I see doesn't have an obvious way to unlock the screen; this is what I see:
The only thing that's close is "SIM UICC Unlock." When I click on that it brings up a Network Unlock prompt. I downloaded the non-free one and it looks dead simple, but if there's a way to do it and save $35 I'm all for it
Did I download the wrong app?
For my Sprint Samsung Galaxy S5 (SM-G900P) there was an extra step that I needed to perform in order to unlock it for domestic usage according to: https://idoneapps.com/settings.php (Thanks @eurohunder for pointing this out for me). According to this quoted info, I am supposed to click on GCS settings on their paid for version of IDONEAPPS, but dont worry, I know that on the free version there is no such fancy button labeled "GCF", but fear no more! I will show you how to access the same exact menu where that fancy "GCF" button on the paid-for version leads to, its none other than simply clicking on the IOTHIDDENMENU button that I can see on your screenshot as button #2 on the bottom list, there you will see a series of menu, I believe the one labeled"Testmode" or something like that from the big menu leads you exactly to the same spot (which is the "SERVICE MODE") as if you were to click on the "GCF" button fron the paid for version, there you can just continue to follow the instructions on that page as it will be exact, depending on many factor and firmware version you are running.
Now that you have access the SERVICE MODE (or in other words "GCF"'s target destination if you were using the paid-for version) You would go to [2] UE Settings & Info, then [1] Settings, then [1] Protocol, then [4] GCF (note: MAYBE the "GCF" button on the paid for version leads you directly to this spot, bypassing the other menu options directly, maybe yes, maybe no, but it doesn't matter, the point is that you made it there), then finally you would tap "[1] GSM/(E)GPRS/WCDMA GCF ON", you will see a confirmation that the command succeeded, and as per the instructions from your own device you shall reboot your device using the power buttons and then tap on "restart/reboot". Thats all. At least in my case that should be it for unlocking GSM bands, according for further research I did, the Sprint Galaxy S5 would only work in 3G mode because all the 4G LTE GSM bands are blocked and the ones aren't compatible with the AT&T network (which is the network that I plan to use very soon on this device), so to fix that predicament because I dont want to be stuck on 3G mode I downloaded QPST and QXDM, I had to downgrade my firmware to kit-kat thorugh ODIN (was a b*tch sourcing the original .tar image on the internet, most servers that used to have it no longer had the file and when I was finally about to give up and pay sammobile their $15 to be able to download it from their servers at a speed greater than 15 kbps I finally found a server that was still hosting the NE5 firmware for free!)
For my particular device, beginning on Lollipop Samsung took measures (on the kernel) to prevent users from having access to QPST/QXDM, installing a customer kernel would have given access to QPST/QSDM without having to downgrade firmwares, but the custom kernel that I needed was nowhere to be found, so my only option was to do the firmware downgrade and thanks God that I didn't have the stock Marshmallow bootloader because downgrading would have been impossible then (Samsung implemented a downgrade check - blocker for the S5 starting on Marshmallow) so I was running the BO6 bootloader/baseband, the last ones of the safe bootloader version that allows downgrades.
So anyways, on QPST I made sure that all the 3G bands that I needed for AT&T were indeed enabled, and on QXDM I enabled all LTE bands (thanks to someone who posted the string value to enable all LTE bands for GSM).
So hopefully, when my AT&T SIM card arrives on Thursday Oct 26 not only should I have 3G access, but I also should have 4G LTE access as well, and after my AT&T SIM card arrives I would finally put all this to a test, how effective all this was and most importantly, if this method for domestic GSM unlock really works for me.
FNetV1 said:
For my Sprint Samsung Galaxy S5 (SM-G900P) there was an extra step that I needed to perform in order to unlock it for domestic usage according to: https://idoneapps.com/settings.php (Thanks @eurohunder for pointing this out for me). According to this quoted info, I am supposed to click on GCS settings on their paid for version of IDONEAPPS, but dont worry, I know that on the free version there is no such fancy button labeled "GCF", but fear no more! I will show you how to access the same exact menu where that fancy "GCF" button on the paid-for version leads to, its none other than simply clicking on the IOTHIDDENMENU button that I can see on your screenshot as button #2 on the bottom list, there you will see a series of menu, I believe the one labeled"Testmode" or something like that from the big menu leads you exactly to the same spot (which is the "SERVICE MODE") as if you were to click on the "GCF" button fron the paid for version, there you can just continue to follow the instructions on that page as it will be exact, depending on many factor and firmware version you are running.
Now that you have access the SERVICE MODE (or in other words "GCF"'s target destination if you were using the paid-for version) You would go to [2] UE Settings & Info, then [1] Settings, then [1] Protocol, then [4] GCF (note: MAYBE the "GCF" button on the paid for version leads you directly to this spot, bypassing the other menu options directly, maybe yes, maybe no, but it doesn't matter, the point is that you made it there), then finally you would tap "[1] GSM/(E)GPRS/WCDMA GCF ON", you will see a confirmation that the command succeeded, and as per the instructions from your own device you shall reboot your device using the power buttons and then tap on "restart/reboot". Thats all. At least in my case that should be it for unlocking GSM bands, according for further research I did, the Sprint Galaxy S5 would only work in 3G mode because all the 4G LTE GSM bands are blocked and the ones aren't compatible with the AT&T network (which is the network that I plan to use very soon on this device), so to fix that predicament because I dont want to be stuck on 3G mode I downloaded QPST and QXDM, I had to downgrade my firmware to kit-kat thorugh ODIN (was a b*tch sourcing the original .tar image on the internet, most servers that used to have it no longer had the file and when I was finally about to give up and pay sammobile their $15 to be able to download it from their servers at a speed greater than 15 kbps I finally found a server that was still hosting the NE5 firmware for free!)
For my particular device, beginning on Lollipop Samsung took measures (on the kernel) to prevent users from having access to QPST/QXDM, installing a customer kernel would have given access to QPST/QSDM without having to downgrade firmwares, but the custom kernel that I needed was nowhere to be found, so my only option was to do the firmware downgrade and thanks God that I didn't have the stock Marshmallow bootloader because downgrading would have been impossible then (Samsung implemented a downgrade check - blocker for the S5 starting on Marshmallow) so I was running the BO6 bootloader/baseband, the last ones of the safe bootloader version that allows downgrades.
So anyways, on QPST I made sure that all the 3G bands that I needed for AT&T were indeed enabled, and on QXDM I enabled all LTE bands (thanks to someone who posted the string value to enable all LTE bands for GSM).
So hopefully, when my AT&T SIM card arrives on Thursday Oct 26 not only should I have 3G access, but I also should have 4G LTE access as well, and after my AT&T SIM card arrives I would finally put all this to a test, how effective all this was and most importantly, if this method for domestic GSM unlock really works for me.
Click to expand...
Click to collapse
Thanks for taking the time to type all of this out...I didn't have any luck getting this to work with TMobile, but it's possible I screwed up something in the process before I made it to the GCF settings. I tried to set the towers to GSM and register the phone on T-Mobile's network, but it just wouldn't register, and I never could get the "invalid SIM" to go away. No big deal; I had a Moto E4 that I bought from Amazon, so I figured by the time I returned the Moto and paid for the $35 I might as well just use the Moto.
Do you have the .zip file he sent you?
Honestly...best damn unlock service ive ever used...and ive used alot but for samsung devices, and mainly sprint devices, its instant, theres a live chat, and if theyre unavailable on live chat, if you leave a message they get back to so fast...i will use them every single time i can.
I have done this on my Not4 using idoneapps, you do not need another carrier sim to domestic unlock... When it is unlocked, pop in a sim from another carrier and your all set to go.
i got mine unlocked thru Ebay for around $8, the seller used GT tools i believe and it is successful. By the way, did you guys update ROM after unlocking? if yes what custom rom did you update?

Turning Hotspot On An Unlocked Rooted S7

I spent a couple of days trying to find a solution for this, but I cannot. So I hope somebody can help.
My phone is rooted an unlocked. It was once a Sprint phone. I have my own MSL code.
Many forums advice that you enter ##DATA# and tweak
APN2LTE internet and APN2 EHRPD and write default,mms,dun.
The problem is that my DATA screen doesn't show APN2LTE internet and APN2 EHRPD
All I see is APN.
When I change the APN TYPE to default,mms,dun nothing happens on reboot.
Another popular advice is that you should edit the build.prop and add
net.tethering.noprovisioning=true
But that fails too.
It's embarrassing that I have a rooted and unlocked phone, but I can not use my phone as a hotspot. I have tried a few apps as well. They fail.
The hotspot option never appears on my Settings.
Does anybody have a solution?
Ftapon said:
I spent a couple of days trying to find a solution for this, but I cannot. So I hope somebody can help.
My phone is rooted an unlocked. It was once a Sprint phone. I have my own MSL code.
Many forums advice that you enter ##DATA# and tweak
APN2LTE internet and APN2 EHRPD and write default,mms,dun.
The problem is that my DATA screen doesn't show APN2LTE internet and APN2 EHRPD
All I see is APN.
When I change the APN TYPE to default,mms,dun nothing happens on reboot.
Another popular advice is that you should edit the build.prop and add
net.tethering.noprovisioning=true
But that fails too.
It's embarrassing that I have a rooted and unlocked phone, but I can not use my phone as a hotspot. I have tried a few apps as well. They fail.
The hotspot option never appears on my Settings.
Does anybody have a solution?
Click to expand...
Click to collapse
When you say unlocked are you saying that it has the U firmware installed? I believe the U firmware allows hotspot natively.
U firmware
Thank you for replying come up but I do not know what U firmware is. I assume it's a generic firmware for the S7.
My phone was a Sprint phone. It has the model number SM-G935P.
I had a professional root and unlock it. It had the hotspot feature available and I used it. However, about a month later, the phone got into a boot loop, so I had to wipe the phone and restore it. In the process of doing that, the phone lost rooting (but it remained unlocked). I restored the root myself, but was unable to restore the hotspot feature.
I would rather not install another firmware. I am in Africa, and downloading two gigabytes is a real pain. Moreover, I'm worried that it won't work on my S7. Since my phone is rooted and unlocked, it seems that it should not be that hard to make the hotspot feature available, especially since it was available earlier with the same firmware that I used to have. Ideas?
Ftapon said:
Thank you for replying come up but I do not know what U firmware is. I assume it's a generic firmware for the S7.
My phone was a Sprint phone. It has the model number SM-G935P.
I had a professional root and unlock it. It had the hotspot feature available and I used it. However, about a month later, the phone got into a boot loop, so I had to wipe the phone and restore it. In the process of doing that, the phone lost rooting (but it remained unlocked). I restored the root myself, but was unable to restore the hotspot feature.
I would rather not install another firmware. I am in Africa, and downloading two gigabytes is a real pain. Moreover, I'm worried that it won't work on my S7. Since my phone is rooted and unlocked, it seems that it should not be that hard to make the hotspot feature available, especially since it was available earlier with the same firmware that I used to have. Ideas?
Click to expand...
Click to collapse
Well if you don't want to go with downloading the firmware then the easiest would be using the app FoxFi. But I believe that if you download and flash the U firmware that it will stay, even after a factory reset. But it's up to you.
Foxfi
Thank you for your advice. I tried the foxfi app and it did not work. Although I could see the network that it creates and apparently connect to it, it would not issue an IP address. So ultimately my other devices could not connect at all.
I really don't want to install a new firmware. I'm worried that it will brick the phone. Are you sure that is compatible with my model of the S7? Where would I obtain the U firmware?
I'm just surprised and a bit stunned that there's not a relatively easy way to reveal the hotspot feature when the phone is rooted and unlocked. I would think that with all the bright developers on this forum, there would be a straightforward solution.
I appreciate your help.
Ftapon said:
Thank you for your advice. I tried the foxfi app and it did not work. Although I could see the network that it creates and apparently connect to it, it would not issue an IP address. So ultimately my other devices could not connect at all.
I really don't want to install a new firmware. I'm worried that it will brick the phone. Are you sure that is compatible with my model of the S7? Where would I obtain the U firmware?
I'm just surprised and a bit stunned that there's not a relatively easy way to reveal the hotspot feature when the phone is rooted and unlocked. I would think that with all the bright developers on this forum, there would be a straightforward solution.
I appreciate your help.
Click to expand...
Click to collapse
As long as you have the US's Sprint Galaxy with the snapdragon processor then you can flash the U firmware with no problem. Look in the Sprint section for directions, you'll even get updates directly from Samsung and not Sprint anymore. And I know there is a way for Verizon when rooted to get hotspot to work but not sure if it would be the same for Sprint. If that's what you're going for then check the Sprint forums for that as well.
According to this....
http://forum.xda-developers.com/sprint-galaxy-s7/help/bloat-free-firmware-930u-tried-t3428974
It only qorks with 930 models. Mine is SM-G935P.
That same thread says " You cannot root this firmware with the Sprint model. "
So I'm still stuck.
I just don't understand why there isn't a simple way to turn on this feature when the phone is rooted.
Ftapon said:
According to this....
http://forum.xda-developers.com/sprint-galaxy-s7/help/bloat-free-firmware-930u-tried-t3428974
It only qorks with 930 models. Mine is SM-G935P.
That same thread says " You cannot root this firmware with the Sprint model. "
So I'm still stuck.
I just don't understand why there isn't a simple way to turn on this feature when the phone is rooted.
Click to expand...
Click to collapse
Are you sure it's rooted? You said you did a factory reset, so unless you rooted it again then you have lost root. And you were looking at the wrong forum, you need to look on the Sprint S7 Edge forum (S7 is the G930 and S7 Edge is the G935) for what you need to do.
you are right. When I reset it, I lost the root. It remained unlocked, for some reason.
However, I was able to root it again by myself. The only thing that I lost was the hotspot.
I'll try another forum here. Thanks!

got Sprint to unlock now how to change carrier options.

OK, I finally got Sprint to uicc unlock my phone yesterday. Now I need to figure out how to change carrier options., any help would be greatly appreciated. Also now that it's carrier unlocked shouldn't I be able to access the hidden menus and stuff or can I only do that after root?
No getting unlock didnt change anything. It just unlocked the uicc slot for a different sim. Have to get another sim and pop in phone and then you can set ur apns for that network.
Nothing else gets "unlocked" and is nothing near the access root gives you.
That's what I thought ugh. But I've tried to do that and can't get the APN to save.... I've tried to edit it with##debug# I have my msl also. And I also like I idiot purchased a unlocking app off eBay and all it was is hidden menu apk. You can add APN with that but still don't save. I inserted my Verizon sim card in the phone and it shows me roaming for service. I'm going to root my phone hopefully tomorrow afternoon. Once I do that the way I understand it that I'll be able to change and access more things. Sorry I'm a newbie when it comes to rooting, can do a lot with phones but some stuff is all new learning experience
Beefy1488 said:
That's what I thought ugh. But I've tried to do that and can't get the APN to save.... I've tried to edit it with##debug# I have my msl also. And I also like I idiot purchased a unlocking app off eBay and all it was is hidden menu apk. You can add APN with that but still don't save. I inserted my Verizon sim card in the phone and it shows me roaming for service. I'm going to root my phone hopefully tomorrow afternoon. Once I do that the way I understand it that I'll be able to change and access more things. Sorry I'm a newbie when it comes to rooting, can do a lot with phones but some stuff is all new learning experience
Click to expand...
Click to collapse
Dont need to root.
If you have msl you can use cdma workshop or another efs program. Need to change ur prl to a vzw one. Then set apns.
Root will fix the issue with apn not saving as the hidden menue stuff needs root to activate the right menues.
But you should be able to swap prl to vzw one and put in sim and do *228 to activate. But rooting will make easier.
Root and flash a vzw rom and profit instantly lol
Quick question? i have the vs997 and i rooted and flashed the vs996 to utilize my Verizon sim. I am able to access and edit apn settings, lte and such work fine but are you saying i could flash a verizon rom to this vs997 so i dont have to use the vs996 rom with the debug kernal?
Team DevDigitel said:
Dont need to root.
If you have msl you can use cdma workshop or another efs program. Need to change ur prl to a vzw one. Then set apns.
Root will fix the issue with apn not saving as the hidden menue stuff needs root to activate the right menues.
But you should be able to swap prl to vzw one and put in sim and do *228 to activate. But rooting will make easier.
Root and flash a vzw rom and profit instantly lol
Click to expand...
Click to collapse
OK I'm want root also cause I want to tinker lol, I love messing with the different menus and stuff. I'm kinda nervous to root cause will be first one and don't want to make expensive paper weight.... But I ran into some issues the other day with trying to root but didn't know needed SD card and couple other things. But like other guy said I can flash the VZW ROM and be golden? Also will I pick up all the band's that VZW towers put out?

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