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Neither on wifi nor cellular will it check for update. I get the error "sorry, we are having trouble authenticating your device"
Any idea how to fix this ?
wondering the same :/ anyone have anything?
see my post here. besides flashing the t-mobile ummm rom I guess over it, you won't be able to update. I've tried samsung and t-mobile and the only thing that will work besides that is to borrow a sim from a friend and use that... https://forum.xda-developers.com/galaxy-s8/help/best-buy-screw-t3594359/page2
try it today. it should work. the servers were having issues last night and this morning.
lotreaglesfan said:
try it today. it should work. the servers were having issues last night and this morning.
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will not work because system updates are coming from carrier and having a tmobile sim in a verizon phone means verizon will not allow you to connect to their update server...
insomnia said:
will not work because system updates are coming from carrier and having a tmobile sim in a verizon phone means verizon will not allow you to connect to their update server...
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Thats not the case. I am using vzw GS8 on att and I receive updates fine
Well I'm confused then. I was able to do the last update with a t-mobile Sim in the phone? Right now when I try checking for updates it errors out saying it couldn't be authenticated. Anyone have any clue?
Hope I can help you!
How to update your system if you're not using the carrier from your S8(+) version.
insomnia said:
Neither on wifi nor cellular will it check for update. I get the error "sorry, we are having trouble authenticating your device"
Any idea how to fix this ?
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Click to collapse
you wont be able to updated through wifi or LTE unless you use a verizon SIM but you can do it easily using your computer and samsung smart switch.
eoga said:
you wont be able to updated through wifi or LTE unless you use a verizon SIM but you can do it easily using your computer and samsung smart switch.
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Are you able to update using your computer?
insomnia said:
Neither on wifi nor cellular will it check for update. I get the error "sorry, we are having trouble authenticating your device"
Any idea how to fix this ?
Click to expand...
Click to collapse
Try to get at least an inactivated Verizon sim card from any Verizon store or you can also try a normal working Verizon sim. I had AT&T Galaxy S5 and it needed the carrier's sim card to even check for update. I took the sim, put it in, checked for update and was able to install it.
Fix to your issue
Hey guys so I do also share the same situation, I have a Verizon s8+ yet I have T-Mobile One as my coverage
Because it's not authenticated as a Verizon provided account it simply won't update
Now.. the solution to updating isn't directly on your device.
It's within the Samsung Smart switch App for either Mac or windows, you can run an update through there with little to no problems at all and finally keep your device up to date without having to return it for an unlocked one.
Just a brief note regarding the smart switch App, keep in mind that sometimes the update will freeze at a certain percentage on the computer so just be sure to close the app out only if your Samsung device hasn't received the green upload screen yet.
Hopefully this helps out alot of you guys ?
Best regards
lotreaglesfan said:
see my post here. besides flashing the t-mobile ummm rom I guess over it, you won't be able to update. I've tried samsung and t-mobile and the only thing that will work besides that is to borrow a sim from a friend and use that... https://forum.xda-developers.com/galaxy-s8/help/best-buy-screw-t3594359/page2
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I'd like to flash mine to t mobile, I'm begging you to help me with this!!!
Sent from my SM-G955U using Tapatalk
I've seen a bunch of info on the forums on how to flash the T-Mo ROM on an s8 - as well as flashing the Samsung Unlocked ROM on the s8 but frankly, almost all the threads are from back at the phone launch - and it is unclear to me which roms & programs to search for.
In a similar vein - I'm a noob to the whole process using oden - which I think is what i would need to use. I have experience from years ago running cyanogen mods on a nook tablet and messing with windows phones - but nothing recent and things have changed a lot.
I've read conflicting reports throughout the forums on doing this...
I'm running a VZW Branded (but it's now "unlocked")
Model: s8 SM-G-950U
Build #: NRD90M.G950USQS2BQL1
Baseband #: G950USQS2BQL1
What I'm looking for (really the right word is "NEED"):
Access to lower 700 A block (full band 12 use)
Ability to get OTA Updates
Mobile Hotspot Functionality
WiFi Calling
VoLTE
Bixby
If I could have these all running the Samsung Unlocked ROM - then that would be preferred...
If not - I would want to flash the T-Mobile ROM.
I need to know ASAP as I only have 14days from today (2/14/18) to figure this out or go back to VZW
Many thanks!
~chris
So IS the hardware on the S8 Active identical between providers (ATT, T-mobile, Sprint, etc) just like the S7?
Asking as I successfully reflashed 2 ATT S7's to TMobile firmware and they're working great for my friends including WiFi Calling and booting with TMO splash (and model # changed as well).
HOWEVER when I tried using a modded Odin 3.13.1 (I think) to do the same with my S8 Active to the lastest FW out there for TMO I get a PIT error (posted elsewhere on here but no helpful replies).
Anyway, just wondering is the HW the same??
Thanks
eplerd said:
So IS the hardware on the S8 Active identical between providers (ATT, T-mobile, Sprint, etc) just like the S7?
Asking as I successfully reflashed 2 ATT S7's to TMobile firmware and they're working great for my friends including WiFi Calling and booting with TMO splash (and model # changed as well).
HOWEVER when I tried using a modded Odin 3.13.1 (I think) to do the same with my S8 Active to the lastest FW out there for TMO I get a PIT error (posted elsewhere on here but no helpful replies).
Anyway, just wondering is the HW the same??
Thanks
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Im pretty sure the same hardware just may me flashed slightly different
TheMadScientist said:
Im pretty sure the same hardware just may me flashed slightly different
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Click to collapse
Any thoughts on why I cannot flash T-Mobile firmware onto my SM892A if identical hardware across cell providers?
It was SO EASY to fix my friend's Galaxy S7's from AT&T with T-mobile firmware and the model number the device reports even changed from SM-930A to SM-930T afterwards and they got rid of all ATT Bloatware and replaced it with TMO's smaller set of bloatware AND MADE WiFi Calling work!!
Frustrated as I have issues with call reception if I forget to turn WiFi off at home as it tries to use AT&T WiFi Calling which wont' work on T-Mobile.....can't afford another cell right now and afraid I'll miss a JOB INTERVIEW CALL!!
ANY HELP APPRECIATED.
Dave
eplerd said:
Any thoughts on why I cannot flash T-Mobile firmware onto my SM892A if identical hardware across cell providers?
It was SO EASY to fix my friend's Galaxy S7's from AT&T with T-mobile firmware and the model number the device reports even changed from SM-930A to SM-930T afterwards and they got rid of all ATT Bloatware and replaced it with TMO's smaller set of bloatware AND MADE WiFi Calling work!!
Frustrated as I have issues with call reception if I forget to turn WiFi off at home as it tries to use AT&T WiFi Calling which wont' work on T-Mobile.....can't afford another cell right now and afraid I'll miss a JOB INTERVIEW CALL!!
ANY HELP APPRECIATED.
Dave
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I dont the Active models where always a bit different than reg S series dont know why Ive only had a couple and ditched em pretty quick
I bought an international s7 edge since the American Snap models have locked bootloaders. I flash custom roms and stuff, so Exynos was a must for me. However, since my phone wasn't made for the T-Mobile network, it's missing a few things
1) Video Calling results in "Unable to make Video Call to this number"
2) I have no way to toggle Wi-Fi calling, a feature I want to use since T-Mobile is charging for it
3) I have no idea if VoLTE is working or not, since there isn't a toggle under connections or the phone app
I remember on my TMO s6 edge+ most of these features were simple floatingfeature.xml codes that needed to be enabled. Unfortunately, I no longer have that phone and don't remember the codes, or know if adding these codes to an international will solve my problem. I would greatly appreciate any help you could offer, and thank you for reading!
Sounds like a job for...
https://forum.xda-developers.com/s7-edge/development/utility-flashable-csc-selection-30-t3392957
https://forum.xda-developers.com/galaxy-s7/help/s7-international-oreo-csc-t-mobile-t3841055/page5
Same issue addressed for not non edge model.
origitat said:
Sounds like a job for...
https://forum.xda-developers.com/s7-edge/development/utility-flashable-csc-selection-30-t3392957
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I tried this one and wifi calling seems to work, but video calling is still missing.
sergatiuk said:
https://forum.xda-developers.com/galaxy-s7/help/s7-international-oreo-csc-t-mobile-t3841055/page5
Same issue addressed for not non edge model.
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Click to collapse
This one has a simple installation and solves all the problems I was having. Would definitely recommend this one for others in my situation.
I have a SM-G935R (Samsung S7 Edge) from US Cellular. USC said the phone is unlocked. I have done no other mods with the phone, so its pretty much stock.
I switched to Google Fi, which this phone is supposed to be be supported, but I haven't been able to make a phone call in weeks, and I have a support case that's moved up all the way to engineering @ Google Fi. I can text, use data, etc. at LTE speeds, anywhere I go--so literally the only thing broke is calling. I've called their codes to switch towers, I've factory reset, used a new SIM card, nothing has worked. Cell signal is always at 0 bars (even though data/texting continue to work). When I make calls, it immediately goes to the "Call ended" window before even getting a chance to play a dial tone sound.
A reddit user said I might have better luck if I flashed a TMobile ROM image on to the phone, which would unlock other cell towers that my phone would be compatible with. Google Fi confirmed that my phone will only work with TMobile towers as it is a USC device, but other fully featured phones can use towers from many other companies.
My question is, is that true, and if so, how do I go about knowing what TMobile ROM image to use? FWIW, I'm new to rooting/ROM scene, but am "technology inclined." My biggest issue right now is parsing out the data on the xda forums and figuring out what I actually need. I was expecting to find a T-Mobile ROM image and instructions on how to use Odin to flash device, but I'm guessing it may not be that easy? I'm not even worried about rooting/modding device after getting T-Mobile image on there--at least for now.
Edit: Can I just use Odin, download G935T from Sammobile, and go through the steps to put TMobile stock ROM on my device and consider it done?
Thoughts, guidance, opinions?
S7 edge no signal bars
If your phone is already unlocked you can flash a combination file using odin and the flash the tmobile firmware. I perform a factory reset after flashing the firmware.
Combination bit 9/u9 (you may need mod odin to perform the flasing)
COMBINATION_ATT_FA60_G935AUCU9ASA1_ATTFAC_CL11071963_QB22035767_REV02_user_mid_noship_MULTI_CERT.tar.rar
Firmware tmobile bit 9 u9
G935TUVS9CSB2
Im new to this forum and cannot include links but you can contact me.
I'm so very hesitant to even try to root my phone or do anything with it because I just don't understand Android and I don't honestly have the time to learn it right now. And I mean that literally I have so much going on with trying to teach myself auto repair and keep myself from getting towed so my dog and I will not lose our home. But it seems to me that when I took it to T-Mobile and they switched out my sim there was an improvement but whether it's not being able to make a receive calls or not being able to access mobile data and now it just being so unbelievably slow but technically functioning correctly, I still can't believe that it won't benefit from a root or flashing a universal ROM. But I just don't understand Android and my illness doesn't make it any easier to understand or handle. I can't get rid of the Sprint apps and I cannot use T-Mobile's app and I assume that's because it didn't actually flash the firmware. When my a13 screen broke, I swapped it Sim into this S7 which I was fortunate to have access to and it sort of worked but I didn't have mobile data at that time so I have to take it to T-Mobile and have them help me figure it out we changed access points and long story short I simply cannot load a T-Mobile app even now. This is obviously the results of some sort of conflict within the firmware software whatever I don't know I don't have the ability to comprehend it. But it is unlocked I see the OEM unlock option it even says it's unlocked I see T-Mobile network... You know a picture is worth a thousand words can anybody help me make this phone fully functional? It's just a few more days I'll get a benefit check and I'm getting a new phone but I guess I've become slightly spoiled because I can't handle 2 minutes to load an app in my chaotic life. But I can figure it out I believe if somebody just points me in the right direction. But I always get that one detail wrong when I try to figure it out myself.
I apologize for any rules that I might have broken because I can't seem to not break a rule when I post on forums even after reading and watching videos on forum etiquette guidelines.
Darylzane said:
I apologize for any rules that I might have broken because I can't seem to not break a rule when I post on forums even after reading and watching videos on forum etiquette guidelines.
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Take it easy on yourself. As long as you follow the Forum Rules and Forum Etiquette linked in my signature, you should be OK. If you make a mistake, we will let you know, and if it's a genuine mistake that you don't repeat, you'll be fine.
I would like to point out that your posts are pretty hard to understand. While we can certainly empathize with what you're going through, not everything needs to be shared online, and it's hard to understand your question when there's a lot of other information to sift through. This is why we have Rule 3:
3. Post using a clear and descriptive subject and message.
You're most likely to receive a helpful answer to your question, if you use a short subject title that describes your problem and a message that explains in detail, what your problem is and what you've done to try solving it.
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So to make sure I understand what you're asking...You're trying to use your phone on the T-Mobile network, but it shows Disconnected under Mobile Network and you're unable to make calls or use data, correct?
Unlocking the bootloader shouldn't affect this, nor should the ROM if you're using the factory Galaxy S7 firmware.
When exactly did this stop working, and did you do anything to the phone that may have been related to this problem?
V0latyle said:
Take it easy on yourself. As long as you follow the Forum Rules and Forum Etiquette linked in my signature, you should be OK. If you make a mistake, we will let you know, and if it's a genuine mistake that you don't repeat, you'll be fine.
I would like to point out that your posts are pretty hard to understand. While we can certainly empathize with what you're going through, not everything needs to be shared online, and it's hard to understand your question when there's a lot of other information to sift through. This is why we have Rule 3:
So to make sure I understand what you're asking...You're trying to use your phone on the T-Mobile network, but it shows Disconnected under Mobile Network and you're unable to make calls or use data, correct?
Unlocking the bootloader shouldn't affect this, nor should the ROM if you're using the factory Galaxy S7 firmware.
When exactly did this stop working, and did you do anything to the phone that may have been related to this problem?
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Okay, thank you. I realized I had not done a factory reset, and so I did. As expected, I now cannot use mobile data, make or receive calls. Ive only ever entered recovery mode. Never had stock firmware. And when I factory reset, as I'm entering recovery aqa plop l mb drew it looked like it was updating firmware only to be followed by the little android guy looking like he's dead with "no command" or something to thateffect. .I'm on public. The S7 is a Sprint phone, I'm on the Magenta Max plan at T-Mobile. I still have the new SIM that the rep put in at a T-Mobile store, and while I can't use data or calls, it is performing as I would expect of a phone this old. And I still have sprint apps, of course, T-Mobiles app won't stop crashing. And I just need to know a few things. It's the CSC codes I don't quite understand. If I found y exact phones model firmware on Updato where it says to make certain you download the correct firmware... will this not just reinstall Sprint Firmware. The way I interpret all the warnings is if you download g930u or g930t and flash it, you will brick the phone.
So I want to be certain, is XAA, universal?
And I'm continuing writing this reply after getting back home, I did T-Mobile's access point again and now I have the ability to text and receive texts I can go online without Wi-Fi but I cannot make calls. Modem issue correct? I just don't understand how that works with cellular. And I have this funny feeling that nobody at any T-Mobile store will know anything as much as you people do. So once again thank you so freaking much.
One more thing this means by the phrasing of it that it's not unlocked but I can unlock it right? Or is it such an old phone that its somehow is just a flick of a switch and it's unlocked?
Darylzane said:
Okay, thank you. I realized I had not done a factory reset, and so I did.
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Why did you think you needed to? When did you do this?
Darylzane said:
As expected, I now cannot use mobile data, make or receive calls. Ive only ever entered recovery mode.
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Meaning the device won't boot into Android anymore?
Darylzane said:
Never had stock firmware.
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What do you mean by this?
Darylzane said:
And when I factory reset, as I'm entering recovery it looked like it was updating firmware only to be followed by the little android guy looking like he's dead with "no command" or something to thateffect.
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I'm not familiar enough with Samsung devices to know whether it should bring up the menu automatically or
Darylzane said:
aqa plop l mb drew
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....What?
Darylzane said:
.I'm on public. The S7 is a Sprint phone, I'm on the Magenta Max plan at T-Mobile. I still have the new SIM that the rep put in at a T-Mobile store, and while I can't use data or calls, it is performing as I would expect of a phone this old.
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Click to collapse
Okay, so you used this phone on Sprint and brought it over to T-Mobile? Sprint and TMobile are totally different networks, Sprint is (was) CDMA and TMobile is GSM. The two are not compatible. If your S7 is a Sprint specific variant (G930P) I don't think you can use it on TMobile and will have to get a new phone.
Darylzane said:
And I still have sprint apps, of course, T-Mobiles app won't stop crashing. And I just need to know a few things. It's the CSC codes I don't quite understand. If I found y exact phones model firmware on Updato where it says to make certain you download the correct firmware... will this not just reinstall Sprint Firmware. The way I interpret all the warnings is if you download g930u or g930t and flash it, you will brick the phone.
So I want to be certain, is XAA, universal?
Click to expand...
Click to collapse
There are a few CSCs, but they honestly don't matter. Just use any North American one. The CSC isn't the same as your device model. You shouldn't use G930U on anything but a G930U.
Darylzane said:
And I'm continuing writing this reply after getting back home, I did T-Mobile's access point again and now I have the ability to text and receive texts I can go online without Wi-Fi but I cannot make calls. Modem issue correct? I just don't understand how that works with cellular. And I have this funny feeling that nobody at any T-Mobile store will know anything as much as you people do. So once again thank you so freaking much.
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Click to collapse
Cell phones use digital radios. The modem is the chipset that handles all the wireless communication. Like I said before, it's possible that your G930P isn't compatible with the TMobile network.
My suggestion: Call T-Mobile. If they gave you the SIM knowing what phone you were going to use, they should help you get it working. It sounds to me like a network provisioning issue, and that's not something anyone here will be able to help with.
i reformatted because it was my fathers, i had **** on there i didnt need to access, see or have cluttering. and a fresh start never hurts any tech in 99% of cases in my experience. it boot just fine. but it was once again a purely sprint phone. i knew it would be, but i think i was only able to make calls because the new T-Mobile SIM was affected by the reset to Sprint variation of the stock firmware. stock is fresh from Samsung with no bloatware. no alterations, there is factory reset, and factory reset from an originally unlocked no carrier ever assigned firmware. correct me if anything is wrong there. but i do think i just need to go to tmobile again to get my phone call function back. but does this mean i can never remove the the sprint startup logo, bloatware (with is any sprint app in my mind thus not stock) And never will be able to use a t-mobile app? if my phone is version 8 oreo, the baseband or pda is the same, as is everything except the fact that my model is a 930P and not 930T then the 930T will potentially break it?
additional questions, in recovery with no bootloader what is apply update from SD or ADB, is that anything firmware related if i do another factory reset and can ODIN or the firmware itself be loaded on my sd and flash itself?
im on a laptop and thats something im more familiar with by comparison. but custom desktops are my forte. a desktop you modify all you want and you can generally very easily fix a mistake. laptops, a tiny mistake and its taken me 6 months to just today think i can save it and save myself a 1000s buck likely. im learning the true definition of proprietary gree.... ahem software and hardware. I cant install and NVIDIA 1660ti graphics driver from NVIDIA directly and unless Lenovo modifies it i lose my display and cannot see what i need to fix. this concept is my question in regards to g930p to g930 u or XAA versions. of 8.0 oreo with everything matching except nowhere on my phone is the CSC code of SPR for sprint.
lastly, my theory is that i thought tmobile bought sprint, if they did, it makes sense T-Mobile wants to slap somthing on a product or software as a big HAHA because of how customer service quality has plummeted worldwide to appalling levels. its disgusting. but ill stop there or ill write a novel on that.
regardless i thank you all for your help. i will live till i get my social security check, but i need to bring an extra two battery banks. my NOCO CAR JUMPSTARTER died trying to keep it alive for a 2 hour long appointment. todays apps just demand too much and too many apps are secretly recording, tracking, advertising and hell in all likelyhood nefariously intended functions. just think of McAfee virus, damn near impossible to get rid of and used to be harder, costs a fortune, slows your rig and a hacker still sent a power surge into my pc killing that 3K PC desktop. smart but careless cause he somehow left screenshots of the DDOS program he used when accessing my OneDrive.
i like information, sorry to blather on, most is useless probably but hopefully you find a diamond in all that rambling.