restore network lock on Galaxy S6 - Galaxy S6 Q&A, Help & Troubleshooting

Is there a way to restore the network lock on my T-mobile Samsung Galaxy S6?
I would like to setup my personal phone so I can access my work emails. My work uses Mobile Iron for email. Mobile Iron requires a network locked phone to install the email app for access to my work email. Mobile Iron also prohibits rooted phones, so I suspect any unlock solution that involves permanently rooting the phone will probably cause other problems.
Thanks,

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[Q] Unlocked Phone's data packet not working despite correct APN

I have problems connecting my Samsung Galaxy SII LTE to the Internet using Data Packet.
I have gone through my carrier's instructions for APN and I am sure I have done everything right.
This phone was originally for Rogers but I unlocked it for use with Fido (my carrier). Did I miss anything? Is there another level of locking that prevents the phone from using Data Pack the proper way?
Now getting the lock information on my phone using *#7465625# renders the following:
Network Lock
Network Subset Lock
SP Lock
CP Lock
Does any cause this problem I am facing?
I presume since the phone is unlocked and I was able to use my sim card and make calls that the phone is working perfectly. Now, I am not sure.

can you use the Palm Pixi in the Wifi mode without a contract?

thats my question I have an unlocked Palm Pixi and I want to use it in the wifi mode alone can I do this? Thanks a newbie
yes, you can. If out have to create Palm profile, you have to download activation bypass tool from palm support site. Go to webosnation forums and search for it if you can't find link via Google.
Easiest way is to borrow a friend's SIM card (or from one of your phones if available) and insert it into the device... Then you can set up the Palm Profile and get into the UI.
After removing the SIM the phone functions for everything but cell service.
If you are familiar with Linux or Mac OSX 10.6 you can use a webos-internals creation called MetaDoctor to achieve this. There is a configuration option you can set that bypasses the activation and Palm Profile setup, allowing you to effectively not associate with a provider. Search for webos-internals metadoctor on Google
I have used a pixi as described above. But another approach that I am now using is using pageplus via kittywireless.com. I have a 10 dollar pay every 120 day plan. So I have a wifi plus phone/txt messg device for pretty cheap.
ive heard that if you bypass it that some features will not work or you wont have a app store is that correct i have a palm pixix plus and a tmobile sim ?
If you bypass the Palm (HP) profile you would have no App catalog. However, you could activate the profile with your T-Mobile SIM and then run without SIM on WiFi and have full access to everything except voice, SMS, and MMS.
So all i do is pop in the sin and it will connect to data and i can set it up and use the phone sms and data i didnt no if i would of had to add the apn or they would pick it up from the sim
Sent from my Nextbook from XDA app
d3adbroke said:
So all i do is pop in the sin and it will connect to data and i can set it up and use the phone sms and data i didnt no if i would of had to add the apn or they would pick it up from the sim
Sent from my Nextbook from XDA app
Click to expand...
Click to collapse
I have a GSM unlocked Pre 2 and I had no trouble setting up the Palm Profile with a friend's T-Mobile SIM. However, if your Pixi is Branded to a network that may be a problem. You can still try it.
I don't think bypassing the Palm Profile is such a good idea even if it will be a WiFi only device because you want the App Catalog and Preware stuff...
Also to run it off carrier you may want to turn on Airplane mode which shuts off all radios and then you can toggle WiFi, GPS, Bluetooth off and on manually as needed. Then it won't suck up battery looking for carrier signal...
Okay well it was a at&t pixi but i have a unlock code and im gonna be using the phone sms and data feature
Sent from my Nextbook from XDA app

[Q] Help With Uptodate Verizon SIII

Hello
I have a Verizon Samsung Galaxy SIII (I535) with the Android 4.4.2 and the VRUDNE1 Build (I535OYUDNE1 Baseband). I got the Data and voice Roaming Package when I went to Europe. The voice part worked fine but the Data roaming sucked big time. Since you only get 100 MB (at 3G only), you follow their advise to reduce mobile data. Well I could not get reliable Internet access, even if I put the phone back up to full mobile data. I was using it with Maps, Yelp and TripAdvisor .
I then decided to buy an Internet-only SIM card in Germany, I could now get Internet access but I got the stupid message about the SIM card not being valid and the APN data had to be manually entered even when putting back the Verizon SIM card, which was a pain.
Now the phone is out of contract and not used with Verizon. I want to make it as my travel phone and be able to automatically load APN data and get rid of the SIM card message.
I see a couple of websites that claim that there are new easier methods to root the phone using towelroot.
Does anyone knows if towelroot will work with my current SIII?
capun1950 said:
Hello
I have a Verizon Samsung Galaxy SIII (I535) with the Android 4.4.2 and the VRUDNE1 Build (I535OYUDNE1 Baseband). I got the Data and voice Roaming Package when I went to Europe. The voice part worked fine but the Data roaming sucked big time. Since you only get 100 MB (at 3G only), you follow their advise to reduce mobile data. Well I could not get reliable Internet access, even if I put the phone back up to full mobile data. I was using it with Maps, Yelp and TripAdvisor .
I then decided to buy an Internet-only SIM card in Germany, I could now get Internet access but I got the stupid message about the SIM card not being valid and the APN data had to be manually entered even when putting back the Verizon SIM card, which was a pain.
Now the phone is out of contract and not used with Verizon. I want to make it as my travel phone and be able to automatically load APN data and get rid of the SIM card message.
I see a couple of websites that claim that there are new easier methods to root the phone using towelroot.
Does anyone knows if towelroot will work with my current SIII?
Click to expand...
Click to collapse
Towelroot will work with an i535 on NE1, I bought a used, unrooted device a month ago and successfully rooted it. But, rooting will not automatically change APNs when you swap sims, I don't think.
dawgdoc said:
Towelroot will work with an i535 on NE1, I bought a used, unrooted device a month ago and successfully rooted it. But, rooting will not automatically change APNs when you swap sims, I don't think.
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Click to collapse
No, but they I can use Apps that have the APN data but require root access. The other thing that would be nice is getting the RESET APN activated but not critical.
I had the impression that some of the SIM cards had a utility (or done through the activation) to set the APN data automatically. Need to test it thought
capun1950 said:
No, but they I can use Apps that have the APN data but require root access. The other thing that would be nice is getting the RESET APN activated but not critical.
I had the impression that some of the SIM cards had a utility (or done through the activation) to set the APN data automatically. Need to test it thought
Click to expand...
Click to collapse
I've never changed SIMs, so I don't know if they have such a utility. I recall some of the the US pre-paid carriers supplying their APN settings packaged with the card for users to set. (StraightTalk comes to mind.) Since haven't needed to change APNs I don't know about the Apps you mentioned either.
Looks like I should have confirmed Towelroot working and not added any additional comment, you seem to have the rest worked out. BTW, let me know if you don't have a working copy of TowelRoot.

Samsung Solstice II AT&T unlocked on T-Mobile (issues with Mobile email)

**ADMIN: I realize this is not for an Android phone but I really need some answers and don't want to sign up for any other forum page.**
I have an AT&T Samsung Solstice II which I have unlocked and currently having to use on T-Mobile.
While T-Mobile automatically sent me the APN settings and they installed, I can't use the Mobile Email applications or any other AT&T app.
I need to be able to log into my G-Mail using this device and I can't because it says Service currently unavailable. Try again later.
I need to know how to set up the mobile settings so that the Mobile Email will work on T-Mobile despite this being an unlocked AT&T phone
...
Got two new phones since and that one broke so I don't use it anymore

Security policy prevents use of mobile data

Hi all. I just bought a S10e (G970U, Snapdragon) from China in order to use it in Spain, with Orange as a carrier. Once I set it up, everything worked fine for about 20 seconds. After that, the mobile data locked down. When I try to turn it up again the device says: "Security policy prevents use of mobile data". I tried to factory reset it several times, try different google accounts, try different SIMs, erase the data from some SIM- and network-related apps, but nothing changes. I guess that this has something to do with Samsung Knox.
What should I do? Is recommendable to contact Samsung support? Can I flash another firmware/ROM that fix this issue? Thanks a lot, any help is appreciated.
PS: Calls and SMS are also locked.
@txordi
Maybe this will help?
https://www.samsung.com/nz/support/mobile-devices/security-policy-updates/
djg269 said:
@txordi
Maybe this will help?
https://www.samsung.com/nz/support/mobile-devices/security-policy-updates/
Click to expand...
Click to collapse
Hi. Thanks a lot for your help! I tried it and nothing changed. Indeed, the security policies were already updated out of the box...
I had the same problem. I had a signal but could not send/receive SMS or calls. After talking with carrier tech support and Samsung, I went to a UbreakIfix store, where they told me the 10e phones have a problem with the antenna on the motherboard. They said I needed to send the phone back to Samsung to get the mobo replaced. I just sent it back to the seller and bought an S20.
Also on S10+
I'm having the same problem on my GM-975U1 S10+. Basically mobile data and texting works long enough to authenticate into the Samsung account during setup, but once the android home screen appears after finishing the setup I can't place any calls and trying to enable mobile data gives a "Security policy prevents use of mobile data" error when attempting to enable it. Neither AT&T or Samsung have given instructions on how this can be fixed. It's behaving similarly to if the phone's IMEI were on a blacklist, but I get immediately shut out once the setup process completes.
kriegersaurusrex said:
I'm having the same problem on my GM-975U1 S10+. Basically mobile data and texting works long enough to authenticate into the Samsung account during setup, but once the android home screen appears after finishing the setup I can't place any calls and trying to enable mobile data gives a "Security policy prevents use of mobile data" error when attempting to enable it. Neither AT&T or Samsung have given instructions on how this can be fixed. It's behaving similarly to if the phone's IMEI were on a blacklist, but I get immediately shut out once the setup process completes.
Click to expand...
Click to collapse
have you found any solution yet I am having same issue with my samsung s10e and I don't even understand what app or policy is preventing me from making calls. BTW I am using clean esn phone. As soon as I pass the setup screen LTE signal goes away and it stops working.
aakashpsp said:
have you found any solution yet I am having same issue with my samsung s10e and I don't even understand what app or policy is preventing me from making calls. BTW I am using clean esn phone. As soon as I pass the setup screen LTE signal goes away and it stops working.
Click to expand...
Click to collapse
I haven't found one yet either. Apparently the phone I purchased is locked to Tracphone after paying for an IMEI lookup (got scammed by an ebay seller who said it was the unlocked model), and the phone isn't able to do calls/mobile data properly except during the initial setup. Tried with SIM cards from two different US providers that both aren't working on it, and can connect to wifi just fine. Can see in the phone information test menu by dialing *#*#4636#*#* that my sim is being recognized, shows my phone number and IMSI, can switch between network types and see the cell towers it connects to; but isn't able to send/receive calls or mobile data. It fails the Ping test with 'Fail(2)' and HTTP Client Test with 'Fail: IOException'.
It's also showing that the phone receives a call inside of the Service Mode menu by dialing *#197328640# and going to '[1] BASIC INFORMATION'. Placing a call from another phone shows that my S10+ is picking up LTE bands and has some RF parameters that change when my number is being dialed, but don't get the option to pick up the call. It's also able to detect that I have a voicemail but am not able to dial in and listen to it. The Tx Pwr says '-- dBm' so I ultimately can't tell if it's a software or a hardware problem.
kriegersaurusrex said:
I haven't found one yet either. Apparently the phone I purchased is locked to Tracphone after paying for an IMEI lookup (got scammed by an ebay seller who said it was the unlocked model), and the phone isn't able to do calls/mobile data properly except during the initial setup. Tried with SIM cards from two different US providers that both aren't working on it, and can connect to wifi just fine. Can see in the phone information test menu by dialing *#*#4636#*#* that my sim is being recognized, shows my phone number and IMSI, can switch between network types and see the cell towers it connects to; but isn't able to send/receive calls or mobile data. It fails the Ping test with 'Fail(2)' and HTTP Client Test with 'Fail: IOException'.
It's also showing that the phone receives a call inside of the Service Mode menu by dialing *#197328640# and going to '[1] BASIC INFORMATION'. Placing a call from another phone shows that my S10+ is picking up LTE bands and has some RF parameters that change when my number is being dialed, but don't get the option to pick up the call. It's also able to detect that I have a voicemail but am not able to dial in and listen to it. The Tx Pwr says '-- dBm' so I ultimately can't tell if it's a software or a hardware problem.
Click to expand...
Click to collapse
I am facing the same exact issue my sim number it shows inside the phone and signal I am getting is in negative dbm also my sim receives calls during the initial setup and as soon as the setup completes the LTE network goes away call gives error " call not sent". I am irritated by this now and there is no root available for this model so I cannot flash any custom rom to check. I have seen many people have same issue but no solution yet.
If your phone locked to a particular network, ie TracFone,AT&T, TMobile, Cricket, etc, then that is only network it will work on. Doesn't matter what custom ROM you use. You will need to get the network unlock code either from the network it's locked to or from a reputable online unlock site. Good luck getting it unlocked.
riggerman0421 said:
If your phone locked to a particular network, ie TracFone,AT&T, TMobile, Cricket, etc, then that is only network it will work on. Doesn't matter what custom ROM you use. You will need to get the network unlock code either from the network it's locked to or from a reputable online unlock site. Good luck getting it unlocked.
Click to expand...
Click to collapse
my device is already unlocked. It is not an unlocked phone issue. This is some stupid policy which is preventing from making calls or using data. Maybe this policy is saved in EFS don't know.
aakashpsp said:
my device is already unlocked. It is not an unlocked phone issue. This is some stupid policy which is preventing from making calls or using data. Maybe this policy is saved in EFS don't know.
Click to expand...
Click to collapse
That's strange, it's acting exactly like a network locked device. When you say it's unlocked, are referring to the bootloader or network? Did you buy it new, unlocked from a reputable dealer? Check the firmware and make sure it is unlocked. There are other thread here with the same issue and message, those are all network locked phones.
riggerman0421 said:
That's strange, it's acting exactly like a network locked device. When you say it's unlocked, are referring to the bootloader or network? Did you buy it new, unlocked from a reputable dealer? Check the firmware and make sure it is unlocked. There are other thread here with the same issue and message, those are all network locked phones.
Click to expand...
Click to collapse
I don't know I bought it from mercari that seller told me it is tmobile unlocked, but while checking I found the model number is G970U1. csc is XAA and binary U4. Bootloader is locked. Networks seems to be unlocked as when I put it my sim card it works till initial setup screen and then stops working. I searched it maybe locked to Consumercellular but is there any way I can unlock it ? I didn't find anything online.
Sounds like the seller lied to you.
Is there any way to unlock CC device ? I am on Binary u4. I am able to flash both g970u and g970u1 firmware but no success.
riggerman0421 said:
That's strange, it's acting exactly like a network locked device. When you say it's unlocked, are referring to the bootloader or network? Did you buy it new, unlocked from a reputable dealer? Check the firmware and make sure it is unlocked. There are other thread here with the same issue and message, those are all network locked phones.
Click to expand...
Click to collapse
My S10+ model G975U is network unlocked, with the bootloader locked. I bought a network unlock code, but am getting the same behavior where the intial setup allows me to sign into my Samsung account when putting in both an ATT and T-Mobile sim card. I've also tried reflashing it with several different firmwares both carrier locked and unlocked, but this phone has been sitting in my drawer for the past month since it's unusable. Probably will end up trading it in since I was scammed by the random ebay seller I bought this from.
kriegersaurusrex said:
My S10+ model G975U is network unlocked, with the bootloader locked. I bought a network unlock code, but am getting the same behavior where the intial setup allows me to sign into my Samsung account when putting in both an ATT and T-Mobile sim card. I've also tried reflashing it with several different firmwares both carrier locked and unlocked, but this phone has been sitting in my drawer for the past month since it's unusable. Probably will end up trading it in since I was scammed by the random ebay seller I bought this from.
Click to expand...
Click to collapse
I'm having the exact same issue. Bought s10+ off ebay for 200 locked to consumer cellular. Bought an unlock code. It said unlock successful. Now get this error with any sim. It will show lte during initial setup only.
It will show that it's at&t or verizon when I put the sim in and populate the proper apn settings.
Before the unlock I would get the sim not provisioned error.
I did have to look up the dial code to make the unlock code window appear.
Now i can't actually use any service and i get the security policy error.
Finally was able to find the xaa firmware which seems to be the exact firmware on it.
Then lash that as no other u1 firmware would flash.
txordi said:
Hi all. I just bought a S10e (G970U, Snapdragon) from China in order to use it in Spain, with Orange as a carrier. Once I set it up, everything worked fine for about 20 seconds. After that, the mobile data locked down. When I try to turn it up again the device says: "Security policy prevents use of mobile data". I tried to factory reset it several times, try different google accounts, try different SIMs, erase the data from some SIM- and network-related apps, but nothing changes. I guess that this has something to do with Samsung Knox.
What should I do? Is recommendable to contact Samsung support? Can I flash another firmware/ROM that fix this issue? Thanks a lot, any help is appreciated.
PS: Calls and SMS are also locked.
Click to expand...
Click to collapse
I'm from the Philippines and my niece phone is network lock ( Smart Telecom ) I can use the sim 2 slot since it's a dual sim using another network Simcard, unfortunately, it won't allow me to use mobile data so I tried unlocking it *#272*IMEI FROM SIM 1 SLOT# so I choose GLB for globe network or XTC to openline so here's what happens, it got reset so upon set up yeah other sim works have data but when finish setting up everything I can use data again on other network and a message pop up
Security policy prevents use of mobile data​
so I guess even it allows other network Simcard on network lock phone it needs to be unlocked by the network where it was lock
Did anyone ever find a solution to this problem?
I'm having the exact same problem with a new samsung s10e I just bought. Security policy prevents use of mobile data, and no calls or sms will go through. LTE shows on setup, but disappears as soon as setup is complete.
I initially assumed the phone was locked, but the seller is reputable and insists it is unlocked. It's also a U1 model, and an IMEI lookup appears to show that it's unlocked. In connection settings under mobile networks, i'm also able to select multiple carriers, so I'm inclined to believe that the device really is unlocked.
Anybody here ever manage to solve this problem, or am I SOL? I would hate to be out 200 bucks on this phone since i'm past the return window.
I am having same isuue with samsung not S20 ultra (SM-N986U1) I bought the mobile and its unlocked the seller send to me photo for the check screen and its open USA but can not use mobile data and make any calls when a make a call the call ended and give me screen call not sent
aniratepanda said:
Did anyone ever find a solution to this problem?
I'm having the exact same problem with a new samsung s10e I just bought. Security policy prevents use of mobile data, and no calls or sms will go through. LTE shows on setup, but disappears as soon as setup is complete.
I initially assumed the phone was locked, but the seller is reputable and insists it is unlocked. It's also a U1 model, and an IMEI lookup appears to show that it's unlocked. In connection settings under mobile networks, i'm also able to select multiple carriers, so I'm inclined to believe that the device really is unlocked.
Anybody here ever manage to solve this problem, or am I SOL? I would hate to be out 200 bucks on this phone since i'm past the return window.
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Click to collapse
esca91 said:
Hello everybody,
Could you share firmware of Sm-r900 ?
Thanls All for good work !
Bests regards.
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Click to collapse
mosaad627 said:
I am having same isuue with samsung not S20 ultra (SM-N986U1) I bought the mobile and its unlocked the seller send to me photo for the check screen and its open USA but can not use mobile data and make any calls when a make a call the call ended and give me screen call not sent
Click to expand...
Click to collapse
Yes, there is a solution, but only from an experienced professional 3rd party business, which means there's no free solution

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