Need help unlocking S5 Sport to BYOD to FreedomPop - Sprint Galaxy S 5 Q&A, Help & Troubleshooting

I'm on Stock TouchWiz Marshmallow on my S5 Sport G860P and my APN settings aren't greyed out, but they don't save when I add the proper APN for my FreedomPop SIM I received yesterday.
Is there a way to unlock this phone for free? I bought it on Ebay used and it has a clean ESN. I'm not the original owner so I don't have to Sprint account number and I may not be able to get it because it was purchased from a reseller.

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[Q] What are my Samsung Galaxy Mega 2 SM-750A network unlock options

My stepson got my wife a Samsung Galaxy Mega 2 SM-750a for Xmas because we are switching from Verizon to Ting and our old phones are locked to Verizon (plus they are old).
When I put the Ting GSM SIM card in the phone is prompting me for an network unlock PIN, I requested an unlock from AT&T, and after 5 days they came back with this.
AT&T said:
Thank you for contacting AT&T about unlocking your mobile device.
Unfortunately, your unlock request was denied because:
Your device is no longer supported, and we can no longer obtain the unlock code from the manufacturer.
Questions? Please call 800.331.0500, or dial 611 from your AT&T wireless phone.
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What are my best options to get this phone working?

Invalid SIM Card error message on Sprint-unlocked SM-G900P with T-Mobile SIM.

I called Sprint and had them unlock my rooted, stock-Android 6.01 (G900VPU3PCA) SM-G900P Galaxy S5 for domestic and international. Sprint also gave me a 6-digit MSL unlock code.
I inserted a new, T-Mobile SIM card into the unlocked S5 and I activated the SIM card on T-Mobile's website. However, the phone displays "Invalid SIM Card" in the notification area, and I get no voice or data. I tried restarting a few times. I also tried dialing ##72786# to reset the PRLs a few times. It won't activate. It still displays "Invalid SIM Card".
T-Mobile reps say to call Sprint.
Sprint reps double checked that it is unlocked and said that:
1) For Sprint phones built prior to February 2015 (like the Galaxy S5, but not the S6, S7, etc.), unlocking only truly works for non-US SIM cards & international use.
2) Domestic unlocks only work if the domestic carrier is willing to work with you to reprogram your phone using the "unlock" MSL code that Sprint gives you when you have them unlock the phone. T-Mobile is not willing to help me reprogram the phone.
3) I did find a site (idoneapps.com) that claims to be able to unlock the phone and fix the "Invalid SIM card" error for $35. But for that price, I'd rather just sell my Sprint GS5 and buy a T-Mobile GS5 because the Sprint G900P doesn't support T-Mobile's LTE bands. (It only supports HDSPA+, which is probably fast enough, but may not be common throughout the USA).
Can anyone help me figure out how to get this phone activated on T-Mobile without paying a fee?
I struggled with this. Idoneapps used to have a free version that worked for unlocking but it has since been scrubbed from the web. I went ahead and paid for the service, and it workeds well.
Since you got the unlock code and already performed the unlock. I recommend getting the free galaxy tools app that was made prior to it becoming idone.
I used version 3.12
Check sim lock status, if still locked go ahead and unlock then use idoneapps recommended steps to enable tmobile service.
You need to change the gfc settings. This might let you use another sim card.
Sent from my SM-G900P using XDA-Developers mobile app

unlocked S6 edge (us cellular) using with verizon

Upgraded my s5 to the s6 edge and i'm trying to get it on the network. The s5 has a large sim and the s6 has the micro sim so i couldn't just swap. Went to verizon. took the phones down and there system would not open up my new s6 phone. i checked online and the esn is not black listed but it also says no results found. the seller is trustworthy and said he unlocked it and used it on t-mobile for years, verizons plan was to have me bring in a phone that had a micro sim and would register. they would make a working sim. then switch them right back out.
What are your thoughts suggestions and ideas, i will be calling verizon again be 100 percent positive that if a friend brings down their verizon phone and does it for me that they wont have any issues at all.
I pay so much for this verizon unlimited that it really is a shame they cant get me fixed up, and switching plans is not an option. thanks everyone

Help SIM Unlocking Samsung Galaxy Fold on AT&T

I just bought a brand new, never opened AT&T branded Galaxy Fold. Seals on the box were still intact. The device was originally purchased directly from Samsung and was not tied to any AT&T account, although there was a new AT&T SIM in the box that is still attached to the card and never used.
IMEI is supposedly clean and ready for activation with no outstanding financing or blacklist according to Swappa and Ting.
I tried to get a SIM unlock code from the AT&T unlock portal, but it rejects the request because “AT&T didn’t sell or activate the device.” I suppose this message is technically true since the phone was sold by Samsung and never activated, but I’m not sure how to proceed with SIM unlocking it to use on Verizon.
Anyone have any ideas?
concept0 said:
I just bought a brand new, never opened AT&T branded Galaxy Fold. Seals on the box were still intact. The device was originally purchased directly from Samsung and was not tied to any AT&T account, although there was a new AT&T SIM in the box that is still attached to the card and never used.
IMEI is supposedly clean and ready for activation with no outstanding financing or blacklist according to Swappa and Ting.
I tried to get a SIM unlock code from the AT&T unlock portal, but it rejects the request because “AT&T didn’t sell or activate the device.” I suppose this message is technically true since the phone was sold by Samsung and never activated, but I’m not sure how to proceed with SIM unlocking it to use on Verizon.
Anyone have any ideas?
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Just guessing as I never had a locked device.
Maybe you can try to use an AT&T SIM card in that device for about 11 days. Some users reported that the network/region lock set by Samsung will get deactivated after that period of time. Then you might be able to change to a Verizon sim card.
Worth a try?!
concept0 said:
I just bought a brand new, never opened AT&T branded Galaxy Fold. Seals on the box were still intact. The device was originally purchased directly from Samsung and was not tied to any AT&T account, although there was a new AT&T SIM in the box that is still attached to the card and never used.
IMEI is supposedly clean and ready for activation with no outstanding financing or blacklist according to Swappa and Ting.
I tried to get a SIM unlock code from the AT&T unlock portal, but it rejects the request because “AT&T didn’t sell or activate the device.” I suppose this message is technically true since the phone was sold by Samsung and never activated, but I’m not sure how to proceed with SIM unlocking it to use on Verizon.
Anyone have any ideas?
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Click to collapse
If its anything like Tmobile, then you'll get the run around, Samsung will tell you its ATT and ATT will tell you its Samsung that you have to contact. On Tmobile one has to contact TForce via Twitter, then have them reach out to Samsung internally so that they can load the IMEI on to the T-Mobile system, once that part is done then Tmobile the actually carrier can go forth and process the unlock request. I am thinking it will be something similar with ATT locked devices purchased from Samsung directly.

How unlock used Samsung Galaxy Book 2 (Verizon) so I can use T-Mobile SIM??

How unlock used Samsung Galaxy Book 2 (Verizon) so I can use T-Mobile SIM??
My friend bought a used Galaxy Book 2, put in his t-Mobile Sim and message came up that stated something to the effect that his device needs a Verizon Sim. Even with this message (as someone said it still worked) it did not get a signal.
He cannot return this as he bought it from some 3rd party he will never see again.
He has T-Mobile as a carrier for quite a few phones and has some sort of lifetime extra device -T-Mobile sim plan he can use so he does not want to move just this device to Verizon.
The question is can this be unlocked by Verizon store? And even if it is and APN settings are changed would it work with a T-Mobile Sim?
I know nothing about these LTE laptops and not sure at least for Samsung if the radio in it is somewhat universal or compatible with most US carriers.
Thank you for any advice.
I appreciate it.
Sincerely
Peter

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