Sprint s6 issues, please help me! - Galaxy S6 Q&A, Help & Troubleshooting

So ive got a spint s6, bought from dubai, unlocked and rooted apparently. After a couple of days, my phone woulndt start up cuz it was FRP locked. OK so i searched for the original firmware, i flashed it and my phone booted up again. i flashed also the 5.1.1 and 6.0.1. Here s the thing, on 5.1.1 i can make calls, receive them, receive text messages but i cant send texts at all, so my guess its that its not unlocked anymore. On 6.0 doesnt even have any signal so forget about it. I just want to resolve this issue. I cant find the setting that could help me to change the message center at all, i dont have that option in my phone, i even tried to change things with some adb commands but still nothing. So after all my guess its that the phone isnt unlocked anymore and if so, how do i unlock it? i just cant give the phone back cuz i dont live in dubai, im like a day or so distance with the plane so i just wont go back there again. If anyone could help me...please do so...im on 5.1.1 now, unrooted, i can root, i just cant send texts and i dont have the messages center
oh and also i tried the galaxy tool method from idoneapps which apparently wont work at all and im concerned about paying for that thing if it doesnt work so...yeah

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big problem PLEASE HELP

my phone can no longer make or recieve calls, cant get to the phonce section of the phone no matter what, says i have no connection, yet can go online, has 3g icon, and can send and recive text. can anyone solve because the silly geese at AT&T said the only way to fix is to exhange and said thats not fixing it bub! so can anyone help
which ROM?
Try hard reset.
Are you running WM6.1 without a compatible radio?
no rom
i have every thing factory, all i did was tried to hard spl and i kept getting the white screen so i was unable to even get a new rom. i went to sleep woke up and boom no calls or phone feature, but everything else. so any clues
i had this problem too,when 3g icon appear on bar,i can't make any phone calls,receive calls,and data connection.but when the G icon appear,i can make phone...etc.i tried all solutions change the radio and roms,but still no luck.
i send my device to the warranty returns,and they changed it to a new one
i think that it is the tytn II problem.
my friend have a PDA store,and 3 customers complaining about this...
so send back your device for warranty
cheers
Hard reset first of all then let us know if it still doesn't work.

[Q] Internet Sharing stopped working

hey there, i hope someone can help me...
so i updated my t-mobile germany brandad omnia 7 to mango and was very happy to see it having internetsharing. i use the phone with the card of another operator but it worked fine. atleast two times. the third time i used it it took a long time trying to set up the hotspot till i canceld by pressing the back button. since then i get an error message everytime i try to switch it on.
does anyone have an idea what could possibly be the cause of this or even how i can fix it other than resetting the device? also i dont want to so as long as i dont know what caused it. i dont want to lose my stuff just for it breaking down again...

[Q] I can do everything except make calls! please help!

I have a Mexican S2 LTE i727 Skyrocket from Telcel.
I rooted it, unlocked it via a web code i bought, and after a few hiccups everything seemed to be working fine (GPS, Wifi, installing and using apps), i did try to keep blocked cellphone data because i dont have a plan yet.
Yesterday i received my 1st call (not my main phone yet) and i found out that i cant make a call longer than 15 seconds!, as the phone will cut audio, or hang up, or restart the phone all together...
The only thing weird i can think of, is that when i first unlocked the phone is said "SUCCESSFUL" and 14 seconds later "FAILED", i restarted and changed roms a few times, and kept being locked...
I tried the alternative methods they sent me by mail and did something that apparently unlocked it successfully, because now i dont get any message when i insert a different SIM, and the carrier name actually comes up (2 different carriers), and everything seems to work...
BUT when i dial *#7465625# to confirm if the phone is unlocked, i get a "Unfortunatelly, the process com.android.phone has stopped." message.
*#06# does gets my imei correctly (a different ROM said it was 0, I changed roms and i could see the imei correctly again.
I tried changing to different mods, like Embyro 6.0, Embyro 6.3, Embyro 4.1, CM9.1, CM10.0, ATT stock deodexed, ATT ICS 404, and a few others... and its the same with every one the phone will hang up, or reboot or lose all audio in or out. (it wont pass the bootscreen with the actual TELCEL stock rom from sammobile)
Am i missing something? a test i could do to see whats wrong?
Could it be a hardware issue? any other *# codes i could try?
also... Anyone out there has the official TELCEL firmware/rom??? or an alternate source for some reason i cant get the one from sammobile to work and i was planning on taking it back for warranty if i confirmed its a hardware issue... :,(

[Completed] Sprint note 4 rooted, completely screwed

Got my note back in November, rooted through odin in December. Everythings been grand and perfect.
Till I watched a video on youtube 2-3mnths ago about good rooted apps (wanted to get more daring other than xposed) loaded gsm gestures app? I think was the name. Kept it for a week, didnt use it. Uninstalled it, phone rebooted, instead of the normal "app uninstalled"
After that my phones been laggy, freezes, and freezes and turns off. Its factory wiped itself 8 times. I have countless posts on Reddit timelining everything. Long short is, tried liquid smooth to see if that would fix my problem, lost text messaging with that could only text for an hr a day, flashed stock sprint firmware and rerooted afterwards, have been slow to reload apps on phone, incase of factory reset or whatever. my phone is now taking 75+ batter pulls to get into a normal boot, every 15bat pulls it jumps into download mode "could not do normal boot ddi_mms read fail" and now an ssl text ive only seen once today, ill try and write that down if it happens again.
Finally when I get back into my phone, sometimes I have to update prl to get service again, the other day my phone lost signal and all my network settings were unselected, I had to select them all and my phone was fine, then I was on the phone and it cut me out in the middle of a call and said roaming lost or something, and I had to reapply cdma/lte on sprint.
Im beyond frustrated, im getting married in 2 weeks, and going out of country immediately after, so I need a working phone as most my business is conducted through it. I have no upgrade on sprint, and cant afford to throw out 400$ for a "new" note 4
Please please please someone help me.
Thanks for your time.
Matt
Hi,
Here's a thread on returning to stock firmware. That should give you a fresh start,
http://forum.xda-developers.com/note-4-sprint/general/stock-tar-odin-flashable-t3056478
If you want to find other options, you could ask for other ideas in your device section here,
http://forum.xda-developers.com/note-4-sprint/help?nocache=1&z=7997657528612763
Good luck!

Prevent the "Security policy prevents use of..." issues on J337u

Hello All,
So I have already smashed one of these phones against a wall; that is how frustrated I am right now. I got a couple of SG J3s (J337U), which are unlocked but unfortunately, cannot get them to work. The recognize my sim card and all, but as soon as they get data connectivity, knox enrollment service runs and mobile data gets deactivated, and calls are blocked ("Call not sent" error). I have not been able to find any way around this; it seems there is no way to root this device and there are not custom roms or twrp for this. I have tried to uninstall/disable all the apps that reference knox using adb, but so far, no luck. Someone mentioned there were able to use a magisk patched boot image to go around a similar issue, but when I created a patched image with magisk and try to flash using odin, I get a failure. I am hoping someone can help me figure this out before smash the others against something I bought these as presents for folks in my neighborhood and now I cannot return them as I had to toss the cases to make room while flying home. I appreciate any and all help I can get.
Thanks
IMurpheus said:
Hello All,
So I have already smashed one of these phones against a wall; that is how frustrated I am right now. I got a couple of SG J3s (J337U), which are unlocked but unfortunately, cannot get them to work. The recognize my sim card and all, but as soon as they get data connectivity, knox enrollment service runs and mobile data gets deactivated, and calls are blocked ("Call not sent" error). I have not been able to find any way around this; it seems there is no way to root this device and there are not custom roms or twrp for this. I have tried to uninstall/disable all the apps that reference knox using adb, but so far, no luck. Someone mentioned there were able to use a magisk patched boot image to go around a similar issue, but when I created a patched image with magisk and try to flash using odin, I get a failure. I am hoping someone can help me figure this out before smash the others against something I bought these as presents for folks in my neighborhood and now I cannot return them as I had to toss the cases to make room while flying home. I appreciate any and all help I can get.
Thanks
Click to expand...
Click to collapse
carriers are getting sneakier about ways to get their phones locked and many have resorted to firmware that only allows calls over a specific set of conditions. TextNow wireless is one that comes to mind. They use the handset as an EMTA basically and the calls are all completed via VOIP to the switch. Thats hard enough to deal with let alone if they also implement use of a VPN to go with it. i say this assuming that youre trying to use the phone on a network it wasnt sold at the store originally for, correct?
I'm having the same issue with this a10e running and.10. i can't activate mobile data it says security policy won't allow mobile data connection. I have beat my head against the wall trying all these fixes for hours now. I could really use some help please.
I have a Galaxy SM-J337U (J3 2018) and its doing the same. Sees SIM and carrier, but will not make a call, receive a call, send or receive a text. Wondering if someone solved this

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