Samsung r740c flash to sprint - Upgrading, Modifying and Unlocking

So I flashed my SAMSUNG R740c using S735c (which is good on sprint, call/txt/data) system back up file and also modem.bin successfully.
But problem i am facing now is phone does not have signal on sprint prl , it does have signal on verizon prl and can even make calls and sms.
I tried to put it on roaming and yes i can make calls and sms using sprint prl, but roaming does not let me use data.
So i tried to use SAM R740c on sprint network with fully call/txt/data working.
If anyone can help me resolve this issue, i am willing to pay for solution.
Please kindly response to this matter and rewards will be your way.
Thank you.

Reserved

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Unable to roam on Verizon

I was in a situation over the weekend where I was in a roaming zone and could not make or receive phone calls/texts or brown the the internet. I kept getting this message when trying to make a call:
"Welcome to Verizon wireless. We're sorry, we're currently unable to authenticate your phone. Please try your call again. If you continue to experience problems, please hand up and dial #8899 from your wireless phone. Announcement 11 switch 6-6"
When I dial #8899 from my phone I get Sprint technical support. They had me update my PRL and profile and that didn't fix anything.
I am currently running CM6-RC2 with PRL 60669 and PRI 1.34_003 (I have tried updating to the latest PRI with no luck). I get the same issue no matter what ROM I am running including the stock rooted ROM.
Has anyone else had similar issues? If so, how did you fix it?
Thanks!
Fixed!
After a second lengthy call to Sprint I was finally able to get a Tech on the line. He did some magic on his end the the issue is resolved.
FYI to anyone else who might come across this issue, make sure you speak with a tech. The regular customer service rep will not be able to help.

[Q] 3g/1x Data blocks incoming calls PLEASE HELP!

If I'm posting in wrong spot, sorry and let me know where to post.
I'm seeking help in getting this resolved in hopes that my last resort won't be to have to change phone number. Ima try to make it short. While my data is running (3g or 1x) incoming calls don't go through.
Story begins........
Bought used samsung epic 4g (clean esn) and had it flashed by mailing it to some guy in craigslist. Received it back with donor phone. I had metro pcs, and had my number ported to boostmobile to have the flash done. As time passed, I noticed data was slow. After research, I come to find out it was flashed with wrong-non 3g phone. I then noticed I kept missing calls. Did a test call and found out that no calls go through while I'm on web/youtube/pandora/anything that relates to data connection.
Things I've tried
1. Reflash phone with another donor phone sanyo incognito. (Now I get 3g but still no incoming calls while using data)
2. Changed roms, tried about 6 different roms.
3. Changed prl 3 times.
4. Called customer service to refresh signal/phone number. (3 times)
5. Reflashed phone AGAIN using another donor phone.
STILL no go!
Ive researched but got nowhere. I'm hoping someone can give any type of advice.
Note: I havnt flashed the phone myself, always take it to a spot to get done. Had my wifes number also ported from metro pcs and flashed same type of phone, epic 4g but she doesn't have same issue. Her phone is flawless!
Please help me, I've had same phone since the first flash, my epic 4g. Another words, SAME MODEM. Can modem be the problem? Could my line be crossed, radio? Any comments, suggestions, questions for me, ANYTHING PLEASE!
Thanks to all in advanced!

[Q] error code 67 and carrier tower

hey, my evo is rooted and am running sense 3.5. this is the new rom i got because i thought it might help the problem. however, it didnt work. i am trying to use 3g but a message saying error code 67 keeps popping up. how do i get my 3g to work? i thought i had to update my profile, bu the rom doesnt have that so i installed a new rom, which didnt make a difference. great rom thought!
also, i dont like sprints service, which i why i want to use verizons network. i can roam manually, but i want to make sure i am using verizon and not another carrier. how do i check which tower or carrier i am using.
You need a sense 1.0 rom or a stock rooted rom to update prl and profile, you have to change your prl manually to force vzw 3g use it too much and sprint WILL boot you if you force roam normally you will only get 1x on whoever has the stronger signal in your area could be vzw could be usacellular could be metropcs could be any of sprints subsidiaries like virgin or boost manually changing your prl to a vzw one will guarantee vzw coverage BUT use too much data and get the boot use too many voice minutes get the boot and while using vzw they will use your anytime minutes no free mobile to mobile or nights and weekends so be prepared
We are legion, for we are many
prl
so how can i change my prl so it only roams on verizon?
if it is always roaming on verizon, will there be an additional charge for the 1x signal i will be getting?
i dont use that much 3g nor do i talk a lot. however, i text a lot! will that affect any additional charges?
i want to use vzw without any additional charges or having to get into any problems with sprint nor verizon with our contract.
If you continue to roam on Verizon you will receive a letter from Sprint telling you you need to cancel your service.
Sent from my PC36100 using xda premium

[Q] Boost Mobile not working HELP

I got a evo 4g flash with boost mobile ..this morning i woke up and i was trying making a call..... my call doesn't go through, instead i get this message: "Your account could not be validated, please contact customer service"
but last night was working perfect
does anybody know how to fix this?
If your running a Sprint prl it will try to use whatever tower affiliated with Sprint rather native or roaming. That error is what you get when your connected to a roaming tower such as Verizon.
Dean_L said:
If your running a Sprint prl it will try to use whatever tower affiliated with Sprint rather native or roaming. That error is what you get when your connected to a roaming tower such as Verizon.
Click to expand...
Click to collapse
so wat i suppose to do to fix that?
do i got to flash it again?
Flash a Boost prl.
Turn off roaming option
Flash a Boost PRL.

Verizon PRL problem

Let me first start out by saying that I know people have been saying to never do *228 on LTE or phones with SIMs. I was doing it for years on my Gnex and never had a problem, it even updated the PRL in some cases.
Recently I was in a rural area with my 5X and it was bouncing between 3G and LTE a lot, I figured why not perform an update just in case. My phone was served 53977 and been stuck on 3G ever since. I tried taking the SIM out and rebooting many times. It just won't serve me the other PRL for LTE.
Wife's identical phone has 15457. Is there a way for me to download the PRL off her phone and serve it to mine manually?
I'm on CM13.0 - 20160610 Nightly. I think I'm on the latest baseband M8994F-2.6.32.1.1 and vendor. TWRP recovery.
Did a factory reset...flashed factory image. It is stuck in LTE now. Under "Service state" Voice: Out of service / Data: In service
I can't make calls. Nobody knows where to find the PRL file?
have you tried just calling Verizon Wireless and explaining your problem of not being able to make calls? They can probably remotely re-provision your phone.
I try to do as much as possible on my own, since I still have unlimited data I don't like to call VZW for anything. I think you're right I may have to do that at this point.
The PRL is the preferred roaming list, I don't believe it has anything to do with native coverage on Verizon, only updated roaming partners and towers.
You should not have to update the PRL on the 5x. Do a factory reset, and have Verizon activate a new Nano Sim for you. Just put the sim in and you're good to go. No need to mess with any APN settings either.

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