Unable to use Unlocked Sprint Phone with T-Mobile - T-Mobile Samsung Galaxy S8+ Questions & Answers

Hello,
I have called Sprint many times, after they keep telling me it is unlocked domestically and internationally, I finally gave up. The phone simply says to contact sprint to unlock. I have no idea what to do. When I press UCCI Unlock it gives me an internal error(407). I tried flashing unlocked firmware (U1) But it does not work on that either. Tried booting up with T-Mobile sim inside, still same result. What to do?
Please help!

I had the same problem. I did a factory reset of my phone, and afterwards, the phone was automatically unlocked. For me, it seemed like a firmware bug.

Hi all. After the phone get unlocked, flash the U1 firmware and you'll be just fine. On the U1 firmware, T-Mobile is the only US carrier network that utilize the full potential of the U1 firmware, Wi-Fi calling and VoLTE. Verizon second with VoLTE, Sprint and AT&T no ? good on U1 firmware, only standard U firmware. Happy flashing

Related

Verizon Note 8...T-Mobile sim - help

Hello all, new here and I just purchased a Note 8 from Verizon. The device is paid off fully and i wish to use my T-Mobile simcard in it but it does not seem to be picking up a signal. I did update the verizon software to the latest version when i had my verizon sim card inserted. Verizon customer service told me i need to reset to factor setting then my t-mobile sim should work but this has not helped.
How can i get my t-mobile sim to work? Any help appreciated as i am new to android phones!
Thanks
Hi there, you must flash the new N950U1 2BQK1 or N950U 2BQK2 stock firmware to have full access of T-MOBILE Network. It's the only way it will work, I have AT&T NOTE 8 working on Verizon network with zero problem.
---------- Post added at 02:35 PM ---------- Previous post was at 02:31 PM ----------
It's a very easy process to flash the 4 US Carriers firmware, I have done it more than 50 times and I'm not a developer.
kdecoteau1 said:
Hi there, you must flash the new N950U1 2BQK1 or N950U 2BQK2 stock firmware to have full access of T-MOBILE Network. It's the only way it will work, I have AT&T NOTE 8 working on Verizon network with zero problem.
---------- Post added at 02:35 PM ---------- Previous post was at 02:31 PM ----------
It's a very easy process to flash the 4 US Carriers firmware, I have done it more than 50 times and I'm not a developer.
Click to expand...
Click to collapse
I would like to know where to get the firmware and with what do you flash it with? Is there a instructions thread or link.
It's been over 5 years since I have tinkered with a Samsung device.
Hi there. You'll need to have your Note 8 Bootloader version on level 2, meaning 2BQK2, 2BQJA or anything with 2 before the last 4 digits.
1) tmobile SIM card in device
2) Odin v3.12.7 make sure extract
3) 2BQK2 firmware extract all files
4) put all 4 set of firmware files in the right manner, bl,ap,cp and csc. Don't used home-csc only CSC.
Odin and firmware https://androidfilehost.com/?fid=673791459329067572 2BQK2
https://androidfilehost.com/?fid=962157660013069130 2BQL5
https://drive.google.com/open?id=1bRz4RQzmloSgsuYmyLu92cktT_f8hIYp
Unlock firmware
1) any carrier SIM card
2) Odin v3.12.5 Prince Comsey or modified Odin, make sure extract
3) 2BQK1 firmware, extract all files.
4) put all 4 set of firmware files in the right manner, bl,ap,cp and csc. Don't used home-csc only CSC
Odin and firmware https://androidfilehost.com/?fid=745849072291691586 2BQK1
https://androidfilehost.com/?fid=817906626617955896 2BQL2
https://drive.google.com/open?id=1Lw79Q5npvMRdME33-ioqy692ClZ36n4U
First instructions is for if you want stock US CARRIER BLOATWARE FIRMWARE, second instructions is if you want SAMSUNG STOCK FIRMWARE. Follow steps and everything will be fine, happy flashing.
So wait, I have a Verizon Note 8 (currently using MetroPCS perfectly), but I wanted a stock Samsung ROM (without the Verizon crap on it), I can just flash the second set of files instead and done with it?
Yes
Can I use a gsm sim card and a verizon sim card at the same time on verizon branded phone? I see you have to flash the firmware above but am wondering if this would help me.
So much misinformation in this thread.
I don't even know where to start:
The OP was asking why his T-Monile SIM wouldn't work. It doesnt matter which firmware you're on, if the Note 8 is unlocked (the Verizon Note 8 IS unlocked), and it has a clean IMEI, and your SIM is already activated, then it will get 4G LTE. I know. I have a Verizon Note 8, and use it on Tmobile. I used it for over 24 hours with my T-Mo SIM but running thr Verizon firmware with no issues. Only reason I flashed T-Mobile firmware was to rid myself of Verizon bloat and to get wifi calling.
As far as bootloader, that has no effect on the SIM card working. The OP would need a v2 bootloader firmware if his current firmwarealso had the v2 bootload. It probably does, so thats a moot point, but the implication was the v2 bootloader was the only one that would make his SIM work.
I hope the OP got it all figured out.
mmdpkaaa said:
Hello all, new here and I just purchased a Note 8 from Verizon. The device is paid off fully and i wish to use my T-Mobile simcard in it but it does not seem to be picking up a signal. I did update the verizon software to the latest version when i had my verizon sim card inserted. Verizon customer service told me i need to reset to factor setting then my t-mobile sim should work but this has not helped.
How can i get my t-mobile sim to work? Any help appreciated as i am new to android phones!
Thanks
Click to expand...
Click to collapse
If you want T-Mobile to work best follow the switching carrier guide to change CSC code to TMB and then flash the Latest T-Mobile Firmware...
https://forum.xda-developers.com/showpost.php?p=74087340&postcount=1
unitop4 said:
Can I use a gsm sim card and a verizon sim card at the same time on verizon branded phone? I see you have to flash the firmware above but am wondering if this would help me.
Click to expand...
Click to collapse
No way to dual SIM US models without trying to modify the SIM tray...and some have damaged trying to...
BlueFox721 said:
If you want T-Mobile to work best follow the switching carrier guide to change CSC code to TMB and then flash the Latest T-Mobile Firmware...
https://forum.xda-developers.com/showpost.php?p=74087340&postcount=1
No way to dual SIM US models without trying to modify the SIM tray...and some have damaged trying to...
Click to expand...
Click to collapse
plus the second SIM wouldn't have an IMEI assigned to it.
And I agree the OPs best bet is to flash thr T-Mobile firmware. But his issue was he wasnt getting a signal at all with his T-Mo SIM. Flashing firmware won't fix that. Source: I have a VZW Note 8 on T-Mo. Used it with the VZW firmware and a T-Mo SIM with no issues.
Mr. Orange 645 said:
plus the second SIM wouldn't have an IMEI assigned to it.
And I agree the OPs best bet is to flash thr T-Mobile firmware. But his issue was he wasnt getting a signal at all with his T-Mo SIM. Flashing firmware won't fix that. Source: I have a VZW Note 8 on T-Mo. Used it with the VZW firmware and a T-Mo SIM with no issues.
Click to expand...
Click to collapse
Another user had SIM issues and flashed back to factory (theirs was unlocked) then changed carriers and SIM worked again...sometimes a clean flash can work...
Hi all. For me I flash all firmware at clean wipe, never any issues. I have an unlock AT&T Note 8 unlock running the latest Verizon firmware with VZW SIM active. I also have a t-mobile S8+ unlock and running the latest U1 firmware and working with Verizon SIM active. I constantly switch my firmware between tmobile, verizon and at&t to see performance and what ever else feature added.
kdecoteau1 said:
Hi all. For me I flash all firmware at clean wipe, never any issues. I have an unlock AT&T Note 8 unlock running the latest Verizon firmware with VZW SIM active. I also have a t-mobile S8+ unlock and running the latest U1 firmware and working with Verizon SIM active. I constantly switch my firmware between tmobile, verizon and at&t to see performance and what ever else feature added.
Click to expand...
Click to collapse
How did you get ATT N8 to work on VZW? I flashed my Tmo to VZW and i could never get speeds above 1mpbs. Even with unlocked firmware it did not get anywhere with VZW. I heard that its because the IMEI is not in VZWs database.
Hi there. My AT&T Note 8 works great on Verizon network, it's running the latest N950U1 Firmware 2BQL2, everything works great. It will work good on T-Mobile too, lately tmobile network giving trouble, sometimes less than 1 mbps on download. Since June 2017 I been having trouble with tmobile network in my area and around, so I switch to Verizon, couldn't bother the crappie service. My location I get 215 mbps on my note 8, IPhone 8 plus 147mbps download. I prefer Tmobile but it's not working good in area anymore.
[/COLOR]
Mr. Orange 645 said:
plus the second SIM wouldn't have an IMEI assigned to it.
And I agree the OPs best bet is to flash thr T-Mobile firmware. But his issue was he wasnt getting a signal at all with his T-Mo SIM. Flashing firmware won't fix that. Source: I have a VZW Note 8 on T-Mo. Used it with the VZW firmware and a T-Mo SIM with no issues.
Click to expand...
Click to collapse
@Mr. Orange 645
I currently have a Verizon Note 8 with a TMO SIM and I'm getting 4GLTE but a few problems. Most of the incoming calls forward to voicemail and all outgoing calls the data has to drop completely before the call can connect. Will doing the carrier switching updates listed in the link above as well as flashing T-Mobile firmware assist with this problem? The phone is on 2BQK2 currently.
Pastor X said:
[/COLOR]
@Mr. Orange 645
I currently have a Verizon Note 8 with a TMO SIM and I'm getting 4GLTE but a few problems. Most of the incoming calls forward to voicemail and all outgoing calls the data has to drop completely before the call can connect. Will performing the carrier switching updates listed in the link above as well as flashing T-Mobile firmware assist with this problem? The phone is on 2BQK2 currently.
Click to expand...
Click to collapse
Nevermind, I fixed it. I had to perform the carrier switch and flash Tmo's firmware. Running perfectly!
Pastor X said:
[/COLOR]
@Mr. Orange 645
I currently have a Verizon Note 8 with a TMO SIM and I'm getting 4GLTE but a few problems. Most of the incoming calls forward to voicemail and all outgoing calls the data has to drop completely before the call can connect. Will doing the carrier switching updates listed in the link above as well as flashing T-Mobile firmware assist with this problem? The phone is on 2BQK2 currently.
Click to expand...
Click to collapse
Omg exacly whats happening to me? So what steps have you guys followed? Should I switch to T-mobile, or to factory unlocked?
I have Verizon phone, unlocked, and I use T-mobile sim card.
I would appreciate the help
Sent from my SM-N950U using Tapatalk
Verizion note8 with tmobile sim card
This is what happened when I changed carriers from the original verizon note8, on verizon network, with verizon sim and the most recent verizon pie update, to a carriers sim, that is tmobile service. And what happens, I didn't even think was possible... I put the new carriers sim in, truconnect, booted and let the phone register the new sim and network. Checked for update.... the was one, let the phone download and update. And you know how Verizon's boot logo is... it wasn't anymore. Booted the tmobile boot logo and sounds, strange. I'm not super noob and the little bit of knowledge and experience that I do have with roms and updates across carriers usually require physically flashing the rom. Correct me if I'm mistaking. Continuing.... optimizing apps....., huh?! The update flashed the tmobile software, without effecting any personally installed apps. Though the update did remove all the verzion software/bloatware, without permissions, and installed tmobile apps. 2 that are meant for user usage. They are tmobiles device unlock and the tmobile app. Which I might add, do not function, I surmise, because in not on the actual main tmobile network, but a scabbed on. I have never seen or experienced anything of the short. Please tell me if this is normal.? I was a bit upset. I did not give any carrier the permission to delete or install any app on my phone. But maybe things have changed since I dabbled. And If they have, maybe this might help the people that have been using Odin to get tmobile version rom while originally being a verzion phone. I dont think it's normal. Please tell me if this has happened to you.

Possible to go from Sprint G960U to AT&T G960U

I successfully went to 2ARF4 on this and it's now a G960U1 but I'd like the AT&T wifi calling, is it possible to flash the AT&T software to gain that or does it have to be a AT&T branded device for their system to register it? If it's possible which OS version should I get, I don't see a ATT version of the one that's on here or anything that would be the alternative.
You can get Sprint S9 or S9+ variant unlocked through Ebay:
https://m.ebay.com/itm/SPRINT-SAMSU...?_trksid=p3984.m1561.l2649&_mwBanner=1&_rdt=1
Also can do Bad IMEI devices also.
After you're unlocked should convert to ATT software when you insert sim.
Sent from my SM-G955U1 using Tapatalk
It hasn't converted to AT&T software on the U1 firmware I flashed. That's why I started the thread to see if anyone else has been able to
Sent from my SM-G960U1 using Tapatalk
First SIM unlock the phone...
Then, Use an unlocked and generic firmware like g960usqs3brj6 and flash with newest Odin.... Use csc NOT home csc and do NOT insert a SIM....
Factory reset, boot phone and setup to home screen... Then just pop in an AT&T sim and click restart device. It should install everything you need for att. I am running att video calling and all other features on my g960u with the above firmware and have no problems... Lists ATT/ATT/SPR under service provider now... Good Luck!

Flashing Verizon firmware to unlocked T-Mobile Note 10+ SM-n975u

Has anyone had success with installing carrier firmware on an unlocked phone from a different carrier? I am able to flash XAA (unlocked) software to the phone but haven't had success with verizon software. After installing the unlocked software, I lose the original T-mobile screen when powering on along with all the bloatware. However, if I try to flash verizon firmware onto it, it reverts back to T-mobile screen, bloatware etc.
I've tried the following:
TMB-->VZW (fail, stays TMB)
TMB-->XAA (success, even changes phone info to SM-n975u1)
TMB-->XAA-->VZW (fail, reverts to TMB)
VZW software used was for SM-n975u as that was what people had success with when I looked through forums.
I'm going to leave it with unlocked firmware for now but would appreciate any tips with flashing verizon firmware. I'd like to get all the verizon features if possible.
Are you trying to use you T-Mobile SIM card with it as Verizon? If so, newer firmwares will prohibit that due to the SIM detect function.
Thanks for the response. No, I'm using my Verizon sim card. The call, text, web actually work fine. I was just hoping to get functions like Verizon Voicemail, call filter etc.
Did you boot your phone with the VZW SIM after flashing XAA? You have to do this before flashing the VZW firmware. That's worked for me when I went from ATT --> XAA + boot with VZW SIM --> VZW
Sent from my SM-N975U using Tapatalk
No I havent tried that yet! Will attempt it when I get home from work and update the post. Thanks guys!
I flashed xaa and put in my vzw sim, restarted the phone and then tried to flash vzw. Unfortunately that did not work. Still comes up Tmobile.
I'm trying to get my unlocked att Note10+ to Verizon. I hope flashing will get this to work
As of now, I think just using the unlocked xaa firmware is your best option. Download the xaa firmware using samfirm or sammobile and flash it with Odin. It seems to be working fine for me currently. I cant get all Verizon functions like Verizon Voicemail but I haven't noticed many other issues.
ferzmedina said:
Did you boot your phone with the VZW SIM after flashing XAA? You have to do this before flashing the VZW firmware. That's worked for me when I went from ATT --> XAA + boot with VZW SIM --> VZW
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
I tried this and it's working fully. WiFi calling. Visual voicemail and Verizon boot animation and Verizon apps
Att note 10 to XAA to verizon
Whatisveal said:
As of now, I think just using the unlocked xaa firmware is your best option. Download the xaa firmware using samfirm or sammobile and flash it with Odin. It seems to be working fine for me currently. I cant get all Verizon functions like Verizon Voicemail but I haven't noticed many other issues.
Click to expand...
Click to collapse
Are you flashing the Verizon Userdata as well in Odin?
do anyone have stock firmware for SM-N975U trying to remove the frp on it it a verizon version dont care about erasing the data on it
Out of curiousity why did you want to got to verizon? I have found a software issue with the n976V firmware that locks out verizon MVNO sims. Seems to bypass the sim data per my carrier.
Was looking to go the other way.

t-mobile firmware help

Hi, my G981A is US, Tmobile carrier. It crashed on me yesterday, is caught in a boot loops, and I am trying to restore it. I have found the Odin software and am able to get it to recognize my device, however, I am unable to find the Tmobile firmware, only AT&T. Does anyone know where the T-mobile firmware might be found? Device is paid off, so I think it is unlocked. Am a bit of a novice at this...just trying not to have to get a new phone if this one can be brought back to life.
Phone is exclusive for AT&T. Yes you can have it unlocked and it will work with other GSM carriers, but there are no Tmobile/Sprint/Verizon variants.

Question SM-G990U1 firmware on SM-G990U?

I have a paid-off Permanent Unlocked SM-G990U from T-Mobile. My carrier is US Mobile on the Verizon Network (CMDA). It does work on the T-Mobile Firmware but there is no Wi-Fi calling, MMS works but I can only receive MMS (can't send). It's not actually connected to CMDA according to AIDA64 and yet Verizon somehow still works, and also there is T-Mobile bloat, and software updates are slower than on an unlocked device. Even though the U1 has 2 sim slots but the U doesn't and the U does not have an unlocked firmware from what I know, would the U1 firmware still work fine with Cellaur and etc on the U fine despite having only 1 SIM card slot? Since I'm pretty sure the hardware between the U and U1 is the same otherwise.
CaptainChris2018 said:
I have a paid-off Permanent Unlocked SM-G990U from T-Mobile. My carrier is US Mobile on the Verizon Network (CMDA). It does work on the T-Mobile Firmware but there is no Wi-Fi calling, MMS works but I can only receive MMS (can't send). It's not actually connected to CMDA according to AIDA64 and yet Verizon somehow still works, and also there is T-Mobile bloat, and software updates are slower than on an unlocked device. Even though the U1 has 2 sim slots but the U doesn't and the U does not have an unlocked firmware from what I know, would the U1 firmware still work fine with Cellaur and etc on the U fine despite having only 1 SIM card slot? Since I'm pretty sure the hardware between the U and U1 is the same otherwise.
Click to expand...
Click to collapse
I've flashed U1 unlocked firmware on U carrier firmware before (S9+ days) so I'm thinking it still should be possible on modern devices, though you need patched Odin to do so (search for it on XDA/Google)
ShaDisNX255 said:
I've flashed U1 unlocked firmware on U carrier firmware before (S9+ days) so I'm thinking it still should be possible on modern devices, though you need patched Odin to do so (search for it on XDA/Google)
Click to expand...
Click to collapse
I will probably most likey back my data up try it to see if it works, if not then i can just revert to normal firmware
You can flash U1 rom without any problem. My device is from Verizon and I flashed successfully the U1 firmware. You will just need to choose correct CSC for your carrier

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