Your phone did not come out of the box capable of the proper bands to use it on the Metro PCS / T Mobile network. In fact, those 2 carriers are the same company.
Here are the specs for your phone, as it came out of the box.
Look where it says G900P for LTE BANDS
T Mobile Galaxy S5's have completely different LTE bands.
Look where it says G900T for LTE BANDS
There are ways to add/change LTE bands, because all of these Radios are capable of the same RX/TX.
Samsung makes all of these phones with all the same parts.
The only exception being the different processors in different regions of the world at one point. They still all had the same hardware capabilities for their radios. Which means that they all had the same chips, Just different firmware (firmware is software that is stored on and runs off the phone's internal memory) .
They are specifically designed to make it as difficult as possible to move from one carrier to the other in many instances. CDMA carriers like Sprint and Verizon especially make it difficult to use anywhere else. Add we see here, this Sprint phone is not enabled with the proper bands in order to work on T Mobile or AT&T properly with data connections.
And now that you've unlocked a Sprint phone in this manner, It may never be capable of GSM 4G without a complete overhaul.
I Even did a Sprint device that was completely capable of all the right babe to move to AT&T, a Sprint Note 5. It had all the right bands in all the right places. But after unlocking in this way from Sprint, it can't get 4G at all. Add far as data speed, It's capabilities are stripped down to a 90's flip phone, at 1Mbps according to Ookla.
I actually have a phone repair business, it's what I do for a living. I thought stifilz and I could go into business together. And we still might for T Mobile, but Sprint phones unlocked by this method are not working on 4G, when if they had been unlocked by code, or a different method, they would have worked perfect on 4G.
There is something about this process with SPRINT PHONES that is clipping the 4G capabilities.
Keep in mind, this process is COMPLETELY DIFFERENT than when he does it for T Mobile, and T Mobile phones have had no problems as far as I know.
Pretty sure I backed up efs. Upgraded to mm and seems I am relocked. What do I do flash the efs file in twrp?I'd SIM unlocked my phone thanks to stifilz, and it worked for months. However, I just upgraded its modem to the OK1 version and now it asks me for a SIM unlock code! Oh, and when I tap the Unlock button nothing happens... :S
I tried to downgrade the modem to OJF but Odin gives an error saying the boot loader won't let it. I'd just upgraded the boot loader to OK1 as well...
---------- Post added 16th December 2015 at 12:03 AM ---------- Previous post was 15th December 2015 at 11:42 PM ----------
PHEW!!! It was heart-attack inducing, but I was finally able to get my unlock back
Thankfully, I had an EFS and Modem backup through TWRP recovery. I restored it and everything's good again!
Restore back up (efs only) in TWRPSo , update after forever. I got unlocked with this method on 5.1.1 but have since upgraded to mm. I FINALLY tried another sim card since the upgrade and have also wiped and used different rom's several times. I did get bars but no 4g icon and no service. Wondering if maybe putting in sprints info - like instead of fast.tmo. whatever would work. I am not using sprint so don't need it to work but just wanted to report that.
---------- Post added at 08:05 PM ---------- Previous post was at 08:02 PM ----------
Pretty sure I backed up efs. Upgraded to mm and seems I am relocked. What do I do flash the efs file in twrp?
Just wanted to post here to say thanks to stifilz for unlocking my Galaxy S5.
Bought the Sprint version to use in the UK and stifilz unlocked for me. Clear instructions provided and very fast unlock all done remotely.
UPDATE: TESTED ON MULTIPLE DEVICES NOW
S6, S6 EDGE, Note 4 both Sprint and T-Mobile are compatible, perhaps other GSM variants also. Message me
Remote unlocking available
Both DSU (domestic) and ISU (international unlock)
Need to have root at this stage
Please PM ME
Please Note my time zone is GMT+12. I am available most times between 8am and 11.59pm in MY TIMEZONE
PM me, email me [email protected] or skype me = stifilz.
Process can take as little as 5 minutes if everything is set up correctly.