Hi Everyone -
AT&T finally gave me the unlock code for my Galaxy Note 3 SM-N900A phone. I'd like the move it to T-Mobile, but have some questions before I do:
1. Is there any way to flash the T-Mobile/N900T firmware to an AT&T N900A variant? I'm talking the official factory firmware...CSC, bootloader, radio, everything needed to essentially do a complete conversion. I'm not interested in custom ROMs based on T-Mobile's firmware and that kind of thing. I assume if there is a way, it's not as simple as flashing N900T firmware in ODIN, since it would probably fail the model checks.
2. Is there any way of enabling the 1700 MHz AWS band for HSPA+ on an N900A? I know it works fine on T-Mobile LTE and will also work on HSPA+ in areas where T-Mobile has refarmed it for 1,900 MHz. I assume the 1,700 MHz lockout on the AT&T version is probably a software limitation inside the modem firmware.
If anyone can shed some light on this, I'd appreciate it.
Thanks!
oldblue910 said:
bootloader, radio
Click to expand...
Click to collapse
You can't flash them or you would get hard brick. If that were the case people would have already unlocked their BL's using T-Mobile
Walter.White said:
You can't flash them or you would get hard brick. If that were the case people would have already unlocked their BL's using T-Mobile
Click to expand...
Click to collapse
Figured.
Sent from my Galaxy Note 3 using Tapatalk
I wonder why it would hard brick though. With the exception of atts bl being locked, wouldn't it all be relatively the same? Would it be possible to clean up the n900T bl to match the n900a?
Sent from my SAMSUNG-SM-N900A using xda app-developers app
oldblue910 said:
Hi Everyone -
AT&T finally gave me the unlock code for my Galaxy Note 3 SM-N900A phone. I'd like the move it to T-Mobile, but have some questions before I do:
1. Is there any way to flash the T-Mobile/N900T firmware to an AT&T N900A variant? I'm talking the official factory firmware...CSC, bootloader, radio, everything needed to essentially do a complete conversion. I'm not interested in custom ROMs based on T-Mobile's firmware and that kind of thing. I assume if there is a way, it's not as simple as flashing N900T firmware in ODIN, since it would probably fail the model checks.
2. Is there any way of enabling the 1700 MHz AWS band for HSPA+ on an N900A? I know it works fine on T-Mobile LTE and will also work on HSPA+ in areas where T-Mobile has refarmed it for 1,900 MHz. I assume the 1,700 MHz lockout on the AT&T version is probably a software limitation inside the modem firmware.
If anyone can shed some light on this, I'd appreciate it.
Thanks!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2625946
Make sure you pay attention to the Modificatinator file and add the T-Mobile carrier file after installation. Works fine and much better than stock ATT junk rom.
Quick question to everybody on here... Is it possible to ODIN the baseband/modem for N900A to the N900T? I want to do this because my service provider is Cricket, which is an MVNO of AT&T. It's not a priority, but is it possible?
deBricker said:
Quick question to everybody on here... Is it possible to ODIN the baseband/modem for N900A to the N900T? I want to do this because my service provider is Cricket, which is an MVNO of AT&T. It's not a priority, but is it possible?
Click to expand...
Click to collapse
Probably, and if it doesn't work you can Odin the stock NC2 or NL1 firmwware back and start again with this ROM.
But why? If you're getting LTE the way your phone is (assuming Cricket is giving you LTE), you won't gain anything by flashing a different modem. (Unless you're getting a lot less signal with this ROM than you were with the NC2 or NL1 modems.)
Related
So I currently have an att sims card in my device. And I'm noticing a ' T-Mobile update service Update postoned' message. Is it safe to take the update even though I'm using att with this device?
anyone's input how this may affect an at&t user appreciated.
SysAdmNj said:
anyone's input how this may affect an at&t user appreciated.
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Click to collapse
I don't think it should be any problem to update the phone with the att SIM on... at least in theory. I unlocked my T-Mobile Note 4 and it's working flawlessly on att at full LTE speeds, minus Wi-Fi calling and VoLTE of course, but I don't really care for those features on AT&T.
bartolo5 said:
I don't think it should be any problem to update the phone with the att SIM on... at least in theory. I unlocked my T-Mobile Note 4 and it's working flawlessly on att at full LTE speeds, minus Wi-Fi calling and VoLTE of course, but I don't really care for those features on AT&T.
Click to expand...
Click to collapse
I'm going to root/custom recovery later anyways so I'd probably over write it with a custom rom. Probably doesnt pay to update.
SysAdmNj said:
I'm going to root/custom recovery later anyways so I'd probably over write it with a custom rom. Probably doesnt pay to update.
Click to expand...
Click to collapse
It will update your baseband (modem) and a few other things that are inaccessible to the user, so yes, update it. In fact, the update does update the modem to version NJ7 (you're probably on NIH).
siraltus said:
It will update your baseband (modem) and a few other things that are inaccessible to the user, so yes, update it. In fact, the update does update the modem to version NJ7 (you're probably on NIH).
Click to expand...
Click to collapse
I am on N910TUVU1ANIH, So updating the baseband is needed to be compatible with custom roms? I'm just worried about bonking my signal since its not a tmobile sims.
SysAdmNj said:
I am on N910TUVU1ANIH, So updating the baseband is needed to be compatible with custom roms? I'm just worried about bonking my signal since its not a tmobile sims.
Click to expand...
Click to collapse
I unlocked, upgraded to ANJ7 from that version, did this: http://forum.xda-developers.com/not...sy-steps-stock-odin-n910tuvu1anih-cf-t2903733
then this:
http://forum.xda-developers.com/not...v1-4-4-4-tw-anj7-extremely-t2916463?nocache=1
with no problems using the t mobile one with an att sim, have been connected to 4G LTE all day.
SysAdmNj said:
I am on N910TUVU1ANIH, So updating the baseband is needed to be compatible with custom roms? I'm just worried about bonking my signal since its not a tmobile sims.
Click to expand...
Click to collapse
I'm on the latest update with latest modem and I have absolutely great reception on at&t with my T-Mobile Note 4. Better than my Nexus 5 for sure.
Hey guys,
Upon reading through the threads, I wasn't able to find specifics to what I'm looking for.... it's apparent that the support has stopped for this issue, which I completely understand. Any help would be greatly appreciated.
I have an unlocked ATT Note 3 on (NJ5) to be used on T-Mobile.
I'm wanting to downgrade from 4.4.4 to 4.4.2 to get back to (NC2).
Can someone confirm the following: (Please add to it if I'm missing something)
Odin ATT 4.4.2 (NC2) - Anyone have the direct link?
Root - Best method?
Safestrap work around? Is this the correct thread? How about this?
Planning to flash ATT FireKat (TouchWiz based) ROM....
From my understanding:
I only have one shot at this, therefore, I want to make sure that all my ducks are in a row before doing this as a "mistake," isn't an option right? I only have one shot at this or Hard brick yes?
Questions:
After successfully doing all this, with the correct TM APN settings, will the ATT phone be able to use all TM's bands? LTE 1700, Band 4 etc....
What are any drawbacks of using the ATT N3 on TM, if any? (I'll be happy with 4.4.2 so no worries on any fancy updates.)
The phones currently unlocked right now. Will doing the steps above lock the phone back up?
Is this all worth it or should I just sell the ATT N3 and buy a TM branded one?
Is there anything I'm missing?
Thanks in advance!
* I hope this post also helps anyone in the future that's in the same boat as I am.
http://forum.xda-developers.com/note-3-att/general/n900aucucnc2-odin-files-t2838117
this will give you 100% stock nc2.
Best way to root is with towel root.
with safestrap you do not need a workaround as it works perfect on nc2 you only need to do a workaround if you would like to go to 4.4.4...And for the record I've done a lot of flashing of random stuff that came from here and I did myself and I'm yet to hard brick or come from a point of no return.
all those t-mobile questions I can't answer cause t-mobile is crap in my area..
Hope this helps!
yourbeatdude said:
http://forum.xda-developers.com/note-3-att/general/n900aucucnc2-odin-files-t2838117
this will give you 100% stock nc2.
Best way to root is with towel root.
with safestrap you do not need a workaround as it works perfect on nc2 you only need to do a workaround if you would like to go to 4.4.4...And for the record I've done a lot of flashing of random stuff that came from here and I did myself and I'm yet to hard brick or come from a point of no return.
all those t-mobile questions I can't answer cause t-mobile is crap in my area..
Hope this helps!
Click to expand...
Click to collapse
Thanks a bunch! I really appreciate it.
To confirm:
From a dead stop (the state my phone is at right now on NJ5)...
1. Odin NC2. (Which one specifically shall I download? I see a bunch of different links.)
2. Towel Root.
3. Put the TM Sim in...add APN's...
4. Flash ROM if desired...
5. Good to go?
Just need these 4... and if you want to rom you need to install busy box and safestrap after you root with towel root. Then yea should be good to go!
yourbeatdude said:
Just need these 4... and if you want to rom you need to install busy box and safestrap after you root with towel root. Then yea should be good to go!
Click to expand...
Click to collapse
Thanks again!
Ok so I'll ODIN those 4 files, then ROOT, then install safestrap, then busybox, and then ROM .... all in this order?
iunlock said:
Thanks again!
Ok so I'll ODIN those 4 files, then ROOT, then install safestrap, then busybox, and then ROM .... all in this order?
Click to expand...
Click to collapse
Busy box first then safestrap...
yourbeatdude said:
Busy box first then safestrap...
Click to expand...
Click to collapse
Gotcha. Thanks!
Oh and would you happen to know if the ATT device has the 1700 band (band 4) to support TM's LTE? I remember with the older devices ATT branded phones didn't have the 1700 build in, but now I'm thinking it might be different....hhmm
Also, it is unlocked right now...will the phone lock itself after all this?
iunlock said:
Gotcha. Thanks!
Oh and would you happen to know if the ATT device has the 1700 band (band 4) to support TM's LTE? I remember with the older devices ATT branded phones didn't have the 1700 build in, but now I'm thinking it might be different....hhmm
Also, it is unlocked right now...will the phone lock itself after all this?
Click to expand...
Click to collapse
Not sure but I think there is some that use att note 3 on t-mobile and works fine I'm guessing... and personally never unlocked a phone for use elsewhere as I been with att for like 10 years lol... but I really don't see it locking it personally...
Help on using 4G LTE in Pakistan
I have just received my AT&T Samsung Note 3 model SM N900A and am using it in Pakistan with warid network. I received the sim unlock code from AT&T. Warid is giving us 4G LTE service but my cell does not work on it. Since warid is not giving 3G service, my cell just connects using edge which is very slow. I actually bought Note 3 for 4G LTE but due to some reason its not working. The carrier people have no answer except that my set is not supported by their system. Can you kindly help? My set is not rooted.
Warid 4G LTE is working on 1800Mhz FDD Band 3 which is supported by my set. Other device parameters are as below:
Baseband version N900AUCUBMJ5
kERNEL VERSION 3.4.0-1625098
[email protected] #1
build JSS15J.N900AUCUBMJ5
Android version 4.3
And I would also like to know if I can update my set to newer android version or not?
Awaiting your positive response.
[email protected]
Question, are these files also downgrade the modem firmware to match the 4.4.2 ROM?
The reason I want to downgrade to 4.4.2, is to fix the GPS signal issue we all AT&T Note 3 owners having after the 4.4.4 update. Does anyone downgraded to 4.4.2 and GPS issues fixed?
Hello I have a verizon note 4 and am using it on tmobile my question is this, Now that the 910v can be rooted what happens if I root it and download a tmobile rom and install it on the phone? Will it work or will it brick the phone? I have no idea if there is any real difference between the verizon note and the tmobile note besides the carrier. Any input would be appreciated as I cant stand the verizon bloatware and would love to have my tmobile stuff back
thanks in advance
As far I know not possible
Tmobile is GSM model and verizon is CDMA frequency bands different.
I did something similar with AT&T G2 and loaded a Tmobile ROM on it. First you need root and TWRP or equivalent. and then some developer have to created a modified bootstack that are tailored for your phone model to work with the rom. Once you load the bootstack, then you load the rom without the radio. Not for the faint of heart.
Hello, I'm a tmobile customer that just purchased an unlocked galaxy s8 from the Samsung website. I'm wondering if going to the store and getting the tmobile firmware on it installed is really necessary. I mainly want to do this because of the software updates, but then I thought the the unlocked version might get updates from a different source? Am I right? I'm sorry about this being such a general question, but I just want to do what's best for my new phone. Would you recommend me installing this firmware? Or should I just keep the stock unlocked firmware it came with? Are there any drawbacks associated with not installing the tmobile firmware on it?
EDIT:
To start, will Tmobile even do this in the first place? I'm totally clueless whether they offer installing their software on customer phones or not.
Thank you.
Hi there. Unfortunately, you are going to be really hard pressed to find a T-Mobile rep anywhere that could/would flash firmware w/ Odin. Not saying that there aren't some reps out their that don't know about this stuff (there are a lot that really have no clue though), but this is well outside of what most of them are trained for, plus Odin is only supposed to be used by Samsung. Also, historically (at least the last couple of years), for whatever reason Samsung's unlocked US models have been getting updates slower than the carrier versions, which really doesn't make any sense because there is less to go through to get them updated. That being said, there are several threads in the T-Mobile S8 forum here as well as the general S8 forum dedicated to carrier switching, which can guide you in turning your unlocked model into a T-Mobile model, for all intents and purposes.
oscarm003 said:
Hello, I'm a tmobile customer that just purchased an unlocked galaxy s8 from the Samsung website. I'm wondering if going to the store and getting the tmobile firmware on it installed is really necessary. I mainly want to do this because of the software updates, but then I thought the the unlocked version might get updates from a different source? Am I right? I'm sorry about this being such a general question, but I just want to do what's best for my new phone. Would you recommend me installing this firmware? Or should I just keep the stock unlocked firmware it came with? Are there any drawbacks associated with not installing the tmobile firmware on it?
EDIT:
To start, will Tmobile even do this in the first place? I'm totally clueless whether they offer installing their software on customer phones or not.
Thank you.
Click to expand...
Click to collapse
The guy that replied first is really correct! T-Mobile store won't flash any phone, don't go beyond simple troubleshooting. It is easier to fly to Mars, than talk about flashing a device with rep. I do hope there are some T-Mobile reps that do really know about flashing, but I just haven't seen one yet.
I am with Unlocked S8 and use it on T-Mobile. I don't have any signal specific issues for example and features such as WiFi Calling, Band 12 and VoLTE all work well. There are few thing that flashing to T-Mobile firmware could give you:
Video calling(to specific phones only)
Advanced Messaging(believe other phone needs to support it)
DIGITS service will be built into the phone dialer.
I was also debating about doing it, but all 3 mentioned features are not wildly available and don't work across all devices and networks. On top of that you will get few T-Mobile apps pre-installed + Lookout app + T-Mobile logo when booting up the phone.
We can flash practically anytime we want, so I would suggest you to wait and see how Samsung will treat unlocked devices and how fast updates will arrive. If T-Mobile will do them much better than Samsung, then I will flash myself or when those 3 features above will work across all devices.
Sorry for reviving this thread, but my unlocked s8 gets slower upload and download speeds than my friends tmobile s8, we are both in NYC and he's getting 100mbps and I'm getting 30-40mbps. I assume they also have specific settings hardbaked in their rom that allows for optimized carrier usage?
joey4321 said:
Sorry for reviving this thread, but my unlocked s8 gets slower upload and download speeds than my friends tmobile s8, we are both in NYC and he's getting 100mbps and I'm getting 30-40mbps. I assume they also have specific settings hardbaked in their rom that allows for optimized carrier usage?
Click to expand...
Click to collapse
the t mobile firmware comes with 4x4 MIMO and 256QAM. which leads to better signal and faster download speeds.
Can I flash just the modem or CSC to get the benefits without flashing the whole tmobile rom?
joey4321 said:
Can I flash just the modem or CSC to get the benefits without flashing the whole tmobile rom?
Click to expand...
Click to collapse
This is a question I'd like the answer to. I'd like to keep all the Samsung default software features but get RCS, which is the most important thing, and one of the main reasons I'm still using my LG G6.
raduque said:
This is a question I'd like the answer to. I'd like to keep all the Samsung default software features but get RCS, which is the most important thing, and one of the main reasons I'm still using my LG G6.
Click to expand...
Click to collapse
joey4321 said:
Can I flash just the modem or CSC to get the benefits without flashing the whole tmobile rom?
Click to expand...
Click to collapse
i think you'll need the whole firmware to be able to use RCS and the tmob features. i personally think the tmob firmware is better since it has 4x4 MIMO and 256QAM enabled. so better signal and service
guaneet said:
4x4 MIMO and 256QAM enabled. so better signal and service
Click to expand...
Click to collapse
I don't care about any of that. I value the Samsung unbranded experience more. All I want from the Tmo FW is RCS.
Alternately, if they ever support it using the unlocked S8 FW, i'll switch back to my S8 in a heartbeat. My G6 seems to get tons better battery life anyway for some reason.
Can someone provide a link to a thread for flashing the Unlocked s8 to T-Mobile?
Thanks.
C3cars said:
Can someone provide a link to a thread for flashing the Unlocked s8 to T-Mobile?
Thanks.
Click to expand...
Click to collapse
There are multiple sections, but I believe you need to look under: Flashing Standard Firmware, but do ask, just in case.
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
Charkatak said:
There are multiple sections, but I believe you need to look under: Flashing Standard Firmware, but do ask, just in case.
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
Click to expand...
Click to collapse
I believe you have to use the "flashing unlocked firmware" because the prince's version of the ODIN will bypass the ROM checksum and let you flash any variant you want. if you use the normal ODIN and you are going from unlocked to t-mobile (950U1 to 950U) ROM it will fail.
I used to be on the unlocked but now I'm running t-mobile rom to have multi-line baked in to the native dialer. and my service provider SW ver. shows TMB/TMB/XAA
All is good and I'm happy with the ROM after few days the battery life seems the same as the unlocked version.
i just want to know if i can keep the bloatware free and just flash the modem from tmobile firmware.
i just want wifi calling, volte, 4x4 MIMO and 256QAM. i dont care much for the multi line feature cause not useful on my end and idk about rcs because the person on the other end needs to have it and i dont really see it as useful.
lol s7 bloatware free firmware was so easy to flash compared to this xD
im running the att variant but im sure all the hardware is the same. so i dont see why the unlocked firmware wouldnt support this out of the box.
ImaUseBT said:
i just want to know if i can keep the bloatware free and just flash the modem from tmobile firmware.
i just want wifi calling, volte, 4x4 MIMO and 256QAM. i dont care much for the multi line feature cause not useful on my end and idk about rcs because the person on the other end needs to have it and i dont really see it as useful.
lol s7 bloatware free firmware was so easy to flash compared to this xD
im running the att variant but im sure all the hardware is the same. so i dont see why the unlocked firmware wouldnt support this out of the box.
Click to expand...
Click to collapse
When I had my S7 Edge I was able to mix and match different ROM with different modem files ie I would be on the unlocked ROM with the tmobile modem and was able to use the unlocked firmware with t-mobile radios. This is what you want but I have not tried it with the my S8 you can try if it dont work use the prince's ODIN to take you back to stock.
kdoweb1 said:
When I had my S7 Edge I was able to mix and match different ROM with different modem files ie I would be on the unlocked ROM with the tmobile modem and was able to use the unlocked firmware with t-mobile radios. This is what you want but I have not tried it with the my S8 you can try if it dont work use the prince's ODIN to take you back to stock.
Click to expand...
Click to collapse
yea thats what ive been doing. i just want a blotware free phone but use the tmo features apart from multi line. i just flashed the u1 firmware now so lets see what happens
ImaUseBT said:
yea thats what ive been doing. i just want a blotware free phone but use the tmo features apart from multi line. i just flashed the u1 firmware now so lets see what happens
Click to expand...
Click to collapse
I believe you will have wifi calling and volte but not 4x4 MIMO and 256QAM. i think MIMO is activated in the modem itself.
kdoweb1 said:
I believe you will have wifi calling and volte but not 4x4 MIMO and 256QAM. i think MIMO is activated in the modem itself.
Click to expand...
Click to collapse
hmm i could try to flash the tmobile modem onto this firmware. but yea i do have volte and wifi calling. idk how to check for 4x4 mimo and 256qam
kdoweb1 said:
I believe you have to use the "flashing unlocked firmware" because the prince's version of the ODIN will bypass the ROM checksum and let you flash any variant you want. if you use the normal ODIN and you are going from unlocked to t-mobile (950U1 to 950U) ROM it will fail.
I used to be on the unlocked but now I'm running t-mobile rom to have multi-line baked in to the native dialer. and my service provider SW ver. shows TMB/TMB/XAA
All is good and I'm happy with the ROM after few days the battery life seems the same as the unlocked version.
Click to expand...
Click to collapse
Isn't "flashing unlocked firmware" means that you have a carrier provided phone and want to flash unlocked firmware on it?
Charkatak said:
Isn't "flashing unlocked firmware" means that you have a carrier provided phone and want to flash unlocked firmware on it?
Click to expand...
Click to collapse
Correct, but it also works the other way around. Anytime you want to change variant you must use the modified version of ODIN as it bypass the checksum or the flash will fail.
Thanks Peeps!
Specifically the SM-N960UZPAXAA model that I'm looking at on eBay. I have clicked on numerous links that say it doesn't have both of these bands or only band 66.
The phone will be on the Metropcs mvno which uses T-Mobile.
adibeckett said:
Specifically the SM-N960UZPAXAA model that I'm looking at on eBay. I have clicked on numerous links that say it doesn't have both of these bands or only band 66.
The phone will be on the Metropcs mvno which uses T-Mobile.
Click to expand...
Click to collapse
Yes. All the N960U and N960U1 devices are the same exact hardware. They all support band 66 and 71. For the best coverage and support on Metro PCS, you'll need to either be running the U1 firmware or the T-Mobile firmware.
Mr. Orange 645 said:
Yes. All the N960U and N960U1 devices are the same exact hardware. They all support band 66 and 71. For the best coverage and support on Metro PCS, you'll need to either be running the U1 firmware or the T-Mobile firmware.
Click to expand...
Click to collapse
Thanks for the reply! I don't have much experience using Samsung devices and I heard you can't root the snapdragon models; so is it just a simple flashing of the firmware? If I don't run the firmware, will all the LTE bands still be available to me?
adibeckett said:
Thanks for the reply! I don't have much experience using Samsung devices and I heard you can't root the snapdragon models; so is it just a simple flashing of the firmware? If I don't run the firmware, will all the LTE bands still be available to me?
Click to expand...
Click to collapse
1. Correct, you can NOT root the US Snapdragon models.
2. Yes, you can flash any U or U1 firmware through ODIN without root or tripping Knox.
3. As far as I know you will have all bands available to you, though some people have said they get better coverage and signal on T-Mo after flashing the actual T-Mo firmware.
I'm currently running the U1 firmware on an unlocked ATT Note 9 and using it on the T-Mobile network without any issues.
Mr. Orange 645 said:
1. Correct, you can NOT root the US Snapdragon models.
2. Yes, you can flash any U or U1 firmware through ODIN without root or tripping Knox.
3. As far as I know you will have all bands available to you, though some people have said they get better coverage and signal on T-Mo after flashing the actual T-Mo firmware.
I'm currently running the U1 firmware on an unlocked ATT Note 9 and using it on the T-Mobile network without any issues.
Click to expand...
Click to collapse
Is there a guide somewhere on how to flash U1 firmware on a carrier locked device?
Mr. Orange 645 said:
1. Correct, you can NOT root the US Snapdragon models.
2. Yes, you can flash any U or U1 firmware through ODIN without root or tripping Knox.
3. As far as I know you will have all bands available to you, though some people have said they get better coverage and signal on T-Mo after flashing the actual T-Mo firmware.
I'm currently running the U1 firmware on an unlocked ATT Note 9 and using it on the T-Mobile network without any issues.
Click to expand...
Click to collapse
Thank you for your prompt and thorough responses!
CCJ22 said:
Is there a guide somewhere on how to flash U1 firmware on a carrier locked device?
Click to expand...
Click to collapse
There are a few threads with instructions on how to flash to the U1 firmware from the U or W firmware. Flashing to the U1 or W firmware will not SIM unlock your device from the carrier it is locked to though. It is highly recommended that you SIM unlock your device first, if you plan on switching carriers. For example, T-Mobile uses an app that is included to unlock devices sold by them.