Motherboard Replacement advice - Galaxy Note 4 Q&A, Help & Troubleshooting

I suspect the motherboard in my Note 4 is on it's last days; slow, endless bootloops, random freezing, rebooting and so on.
I found a used unlocked Note 4 with a broken screen and opened it up to check out the motherboard.
Correct me if I'm wrong, but to me, the T-Mobile Galaxy Note 4 N910T and the North American Galaxy Note 4 N910W8 use the same motherboard.
Take note of the model numbers at the top right corner (near the front-facing camera) and also the model numbers of the chips used.
T-Mobile Galaxy Note 4 N910T:
https://www.dropbox.com/s/6tg4wc4pilsylfb/Galaxy Note 4 N910T.jpg?dl=0
North American Galaxy Note 4 N910W8:
https://www.dropbox.com/s/fnfmxwabhx43fqs/Galaxy Note 4 N910W8.jpg?dl=0
I've replaced N910W8 motherboard with the N910T and reinstalled the T-Mobile Stock ROM and everything works well.
(Sorry, I couldn't get inline images, only links.)
Can I used a stock Rogers ROM (like the other motherboard N910W8) on the N910T motherboard or is it not going to work?
If I try to flash a different ROM (Rogers) onto the T-Mobile motherboard am I going to brick it?
Need advice 'cause I'd rather use a different ROM than a T-Mobile ROM. Nothing personal against using the T-Mobile ROM. I'd just like to use the stock ROM for the carrier I'm using.
P.S. I live in Canada and the phone is confirmed to work on our networks using the T-Mobile ROM and a custom ROM.

Related

TMobile VS International Note 4 (Like Note 3 or S5?)

When the Note 3 was released there was a pretty big difference between the two phones that initially made flashing roms from International on TMobile - wifi wouldn't work intially - internal SD Card was wiped frequently on flashing and a bunch of other issues made flashing International ROMS on TMOBILE phones difficult at first. (this was fixed later but it took a while)
The S5 was a lot different - I am not a technician or Developer by any means - but as a novice looking in - it almost seemed like International and Tmobile mobile note 3's were almost entirely different phones - whereas the S5's were almost identical.
I realize I maybe oversimplifying this - but doing so to make a point. I am very curious about what will happen with the Note 4. I doubt if there is any way to know until both phones are out and Devs start creating roms - but I wonder if the NOTE 4 will be more like it was with the NOTE 3 or will they be more like it was with the S5 ? Samsung will never listen to me but I think you know how I would vote -
looking forward to the NEXT BIG THING....
Not sure if you look at gsmarena or phonescoop, but kind of like the GN3, GS3 etc. The GN4 US variant has Q-com Snapdragon CPU, Int'l has Exynos (sp?) So some hardware is similar.
But T-mo variants vs other,like before T-mo rom has wifi call capability. Others do not.
papabear said:
Not sure if you look at gsmarena or phonescoop, but kind of like the GN3, GS3 etc. The GN4 US variant has Q-com Snapdragon CPU, Int'l has Exynos (sp?) So some hardware is similar.
But T-mo variants vs other,like before T-mo rom has wifi call capability. Others do not.
Click to expand...
Click to collapse
Sprint also has wifi calling
papabear said:
Not sure if you look at gsmarena or phonescoop, but kind of like the GN3, GS3 etc. The GN4 US variant has Q-com Snapdragon CPU, Int'l has Exynos (sp?) So some hardware is similar.
But T-mo variants vs other,like before T-mo rom has wifi call capability. Others do not.
Click to expand...
Click to collapse
I realize that WIFI Calling is a major difference between international and TMOBILE - but I was more interested in the file structure of the phone and how wifi - or data works - not sure the reason, but it originally was difficult to flash International ROMS on the TMOBILE Note 3 - data wifi didn't work - data didn't work - and often the Internal SD card was wiped. When the S5 was released, the phones were so similar none of these problems happened. I was flashing International ROMS in the first day or two that the S5 was released.
I am not a dev so I can't speak to the reasons why it was this way on the NOte 3 - but except for the obvious differences (wifi Calling for example) I am only hoping that the Note 4 is more like it was with the S5 than it was with the note 3.
Lets make sure first that Tmobile keep its bootloader unlocked!
kinda like papabear was saying, i believe the S5 international vs US both had snapdragon, which made them very compatible. the GN3 had exynos/snapdragon, and that made them quite different. exynos didn't have near as much development.
http://www.gsmarena.com/compare.php3?idPhone1=6033&idPhone2=6434
The GS4 was really good with cross compatibility. The T-Mo and i9505 variants were very similar, both had the same CPU, etc. You could flash the same ROMs but not radios/modems or bootloaders. My concern is if the International Note 4 will work with T-Mo LTE since it doesn't have the 1700 band.
Dont forget about band 12.
Do we know If the international version N910F supportd Tmobile LTE? I think I saw a video on phonedog and the Josh was using an international version with a tmo sim card.
Any confirmation?
daraj said:
Do we know If the international version N910F supportd Tmobile LTE? I think I saw a video on phonedog and the Josh was using an international version with a tmo sim card.
Any confirmation?
Click to expand...
Click to collapse
Notice how the symbol says 4G and not 4G LTE
Kawaisa said:
Notice how the symbol says 4G and not 4G LTE
Click to expand...
Click to collapse
As far as I know, on the international models it doesnt say 4G LTE . It displays either LTE or 4G next to the reception bars.
mocsab said:
I realize that WIFI Calling is a major difference between international and TMOBILE - but I was more interested in the file structure of the phone and how wifi - or data works - not sure the reason, but it originally was difficult to flash International ROMS on the TMOBILE Note 3 - data wifi didn't work - data didn't work - and often the Internal SD card was wiped. When the S5 was released, the phones were so similar none of these problems happened. I was flashing International ROMS in the first day or two that the S5 was released.
I am not a dev so I can't speak to the reasons why it was this way on the NOte 3 - but except for the obvious differences (wifi Calling for example) I am only hoping that the Note 4 is more like it was with the S5 than it was with the note 3.
Click to expand...
Click to collapse
I haven't used Samsung phone for a while, but from past experience I'm pretty sure that you only need to flash appropriate radio/kernel to get data and WiFi working again. just my 2 cents.
I've got my eyes on the note 4 and thinking about getting one to play with, I have Nexus 5 and Nexus 7 2013, yeah, I know I'm a Nexus junkie
Lancez said:
I haven't used Samsung phone for a while, but from past experience I'm pretty sure that you only need to flash appropriate radio/kernel to get data and WiFi working again. just my 2 cents.
I've got my eyes on the note 4 and thinking about getting one to play with, I have Nexus 5 and Nexus 7 2013, yeah, I know I'm a Nexus junkie
Click to expand...
Click to collapse
That actually wasn't true with the NOTE 3 which is the main reason I did this thread in the first place. When the NOTE 3 was released, if you flashed an INTERNATIONAL ROM WIFI and DATA and blue tooth did not work at all. Someone eventually came up with a fix which had to be flashed anytime you flashed an international rom - I don't know why this was necessary - it just was - it was almost as if there was some major difference in file structure and programming on the International version versus the TMOBILE or Canadian Version.
The S5 wasn't like that at all - Virtually every International ROM worked beautifully from the get go on TMOBLILE phones. So - the NOTE 3 must have had something that was done differently on International Versions of the phone compared to TMOBILE and Canadian Versions - and I am hopeful that THE NOTE 4 doesn't do that.
So - I am excited about the Note 4 - can't wait for it to be released - I know all of our questions will be answered then - looking forward to it!
Bubbled said:
kinda like papabear was saying, i believe the S5 international vs US both had snapdragon, which made them very compatible. the GN3 had exynos/snapdragon, and that made them quite different. exynos didn't have near as much development.
http://www.gsmarena.com/compare.php3?idPhone1=6033&idPhone2=6434
Click to expand...
Click to collapse
Exynos doesn't have anything to do this. ALL of these phones come in both versions - Snapdragon and Exnynos - the note 3, S5 and NOte 4 each have both variations.
anyone on a tmobile snapdragon note 3 had problems with wifi and data when trying to flash roms from the international snapdragon phones Note 3.... I honestly don't know why the NOTE 3 had this issue and the S5 didn't - but it doesn't have anything to do with Exynos - but fingers crossed that the NOTE 4 behaves more like the S5 than the Note 3 in this regard - it will make flashing much easier.
(PS - there is no evidence that TMOBILE will lock bootloader. ATT and Verizon will for sure - both have said as much - every phone ATT and VERIZON releases are locked (except the developer version on Verizon) but TMOBILE has not given any indication they will be locking the bootloader - I don't expect they will lock the bootloader on the note 4 - we will find out for sure in a few weeks...
mocsab said:
That actually wasn't true with the NOTE 3 which is the main reason I did this thread in the first place. When the NOTE 3 was released, if you flashed an INTERNATIONAL ROM WIFI and DATA and blue tooth did not work at all. Someone eventually came up with a fix which had to be flashed anytime you flashed an international rom - I don't know why this was necessary - it just was - it was almost as if there was some major difference in file structure and programming on the International version versus the TMOBILE or Canadian Version.
The S5 wasn't like that at all - Virtually every International ROM worked beautifully from the get go on TMOBLILE phones. So - the NOTE 3 must have had something that was done differently on International Versions of the phone compared to TMOBILE and Canadian Versions - and I am hopeful that THE NOTE 4 doesn't do that.
So - I am excited about the Note 4 - can't wait for it to be released - I know all of our questions will be answered then - looking forward to it!
Click to expand...
Click to collapse
If odin is still the tool to flash samsung official ROM, then you should be able to choose what to flash and what not to. well, i might be wrong but thats how i did on AT&T Captivate, Galaxy S2 and Galaxy Nexus. I remember that i've been switching between international and US version ROMs with just ROM without flashing any radios. Samsung may changed ROM structure, that I have no idea. And Sale is still sending all the samsung ROMs to me whenever he made one:victory:
Going to give a international a try.. this will be my first international device. .
This the one to get? Lte will work on usa tmobile right?Samsung Galaxy Note 4 SM-N910 Factory Unlocked International Model by samsung http://www.amazon.com/dp/B00N2Y5ALK/ref=cm_sw_r_udp_awd_oUSmub0HH4M79
Lancez said:
If odin is still the tool to flash samsung official ROM, then you should be able to choose what to flash and what not to. well, i might be wrong but thats how i did on AT&T Captivate, Galaxy S2 and Galaxy Nexus. I remember that i've been switching between international and US version ROMs with just ROM without flashing any radios. Samsung may changed ROM structure, that I have no idea. And Sale is still sending all the samsung ROMs to me whenever he made one:victory:
Click to expand...
Click to collapse
Like you had said, you haven't had sammy devices in a while. Lol, things have changed with the note varients my friend, its not that "easy" anymore. How can you be debating with people who actually own the note 3 and was flashing international roms? lol
mgbotoe said:
Like you had said, you haven't had sammy devices in a while. Lol, things have changed with the note varients my friend, its not that "easy" anymore. How can you be debating with people who actually own the note 3 and was flashing international roms? lol
Click to expand...
Click to collapse
That was discussion my friend. and PDA is not the only option in odin.
markysd said:
Going to give a international a try.. this will be my first international device. .
This the one to get? Lte will work on usa tmobile right?Samsung Galaxy Note 4 SM-N910 Factory Unlocked International Model by samsung http://www.amazon.com/dp/B00N2Y5ALK/ref=cm_sw_r_udp_awd_oUSmub0HH4M79
Click to expand...
Click to collapse
What do you hope to get by going with an international phone? It certainly won't have the optimum frequencies for tmobile network, it will likely work but they are opening new frequencies that the tmobile note 4 will be the first take advantage of...
p()()pypants said:
What do you hope to get by going with an international phone? It certainly won't have the optimum frequencies for tmobile network, it will likely work but they are opening new frequencies that the tmobile note 4 will be the first take advantage of...
Click to expand...
Click to collapse
Dont care much about the frequency. . Lte and 4g is fast my aera. . No need for wifi calling also.. I want the exynos octo

note 4 at&t to international

Hi all,
This is my first post so bere with me if am missing any knowledge on how to post properly on the forum. I bought a note 4 on AT&T from eBay I was stupid and didn't read the advert properly my fault. Am wondering would I be able to flash my note 4 to UK unlocked rom at all? So basically it would work exactly the same as a note 4 bought hands free in uk. I have read there is difficulties in flashing international versions to work on AT&T due to network frequency but not much detail going the other way around.
Thanks
anyone please help out?

[Q] [Q&A] Trying to get Simple Mobile SIM to work on Note 3

Hello,
This is has been a very frustrating situation but here is where I am at currently. I use a carrier called "Simple Mobile" and they are an under carrier to TMobile. I want to own and use a Samsung Note 3 but can not get my SIM to work. That is the short introduction. I am providing some more information because this has been a long drawn out process but the bottom line is I want to continue using Simple Mobile AND use a Note 3.
Background: Back in late June 2014, I bought a used Note 3 N900V from ebay after I broke my Note 1. I love my Note 1 and it was the ATT branded model. I had the phone (Note 3)and it worked but had a very poor signal compared to using the same SIM card with my Note 1 (those threads are still available under my username). After many failed attempts to correct the situation and being educated about the phone model and so forth I found it in my best interest to return the phone for a refund and just repair my Note 1.
Currently: I repaired my Note 1 after the fiasco with the N900V model. However, my screen went purple recently and then wouldn't light up at all anymore. So I am where I was last time and looking to replace it. This time, armed with my knowledge from last time, I bought another Note 3 (model N900T this time), thinking it would be more compatible with my Simple Mobile (sub carried by T Mobile) as the N900T is a T-Mobile friendly phone. NOTE: I bought the phone used and through a mistake of the seller, what I have is actually a N900W8. The seller had replaced the screen and did a motherboard swap. The result is a phone with markings that say N900T but after a boot up provides software descriptions showing N900W8.
Why do I want to use Simple Mobile so bad? : Simple mobile charges me 40.00 + tax for Unlimited Data, Calls and Texts domestically + limited international texting to certain countries. For me, that is a great deal and I dont have to do a contract or pay extortionate fees to other providers. Yes, I am a cheap Bas*&^d as evidenced by me buying used phones to save a few hundred $$$'s here and there.
Dilemma: In my bid to purchase a Note 3 that works I looked at the Simple Mobile site. They do indeed sell a new model N900T, Link here: <http://www.mysimplephones.com/Samsung-Galaxy-Note-III-Simple-Mobile.html> HOWEVER, when you look at another page for compatible phones you will find that the N900T is not even a compatible model for Simple Mobile's 4G LTE service. YOU WILL HOWEVER FIND that there are two models of Note 3 that WILL work. The N900W8 (Canadian Model) and the N900A (ATT). This link shows those compatible 4G LTE phones: <http://simplemobileinfoblast.com/4glte/phones.php>
Interesting note: While I do actually have a 4G LTE compatible phone technically, since the phones software shows it is a N900W8 despite the shell being embossed N900T, it will not work AT ALL on my carrier. All attempts result in "NOT REGISTERED ON NETWORK" messages. My research thus far seems to indicate that the N900W8 Models come unlocked as new so I do not feel that my phone is locked.
Conclusion: My Note 1 is broken and I don't want to repair it so I will sell it as is elsewhere. I have a Note 3 N900W8 that will not work that I am going to return to the seller since it is not even the right model to begin with. It should be noted that the screen on the N900W8 WAS replaced but not very well and there are some annoying defects on the underside of the screen as a result. So after all of this expostition, Can anyone please tell me what model of Note 3 to get that will work with my simple mobile SIM?
It is my sincere hope that someone has gone through this same situation and can help guide me a bit.
Thank you
Wallace Bagwell said:
Hello,
This is has been a very frustrating situation but here is where I am at currently. I use a carrier called "Simple Mobile" and they are an under carrier to TMobile. I want to own and use a Samsung Note 3 but can not get my SIM to work. That is the short introduction. I am providing some more information because this has been a long drawn out process but the bottom line is I want to continue using Simple Mobile AND use a Note 3.
Background: Back in late June 2014, I bought a used Note 3 N900V from ebay after I broke my Note 1. I love my Note 1 and it was the ATT branded model. I had the phone (Note 3)and it worked but had a very poor signal compared to using the same SIM card with my Note 1 (those threads are still available under my username). After many failed attempts to correct the situation and being educated about the phone model and so forth I found it in my best interest to return the phone for a refund and just repair my Note 1.
Currently: I repaired my Note 1 after the fiasco with the N900V model. However, my screen went purple recently and then wouldn't light up at all anymore. So I am where I was last time and looking to replace it. This time, armed with my knowledge from last time, I bought another Note 3 (model N900T this time), thinking it would be more compatible with my Simple Mobile (sub carried by T Mobile) as the N900T is a T-Mobile friendly phone. NOTE: I bought the phone used and through a mistake of the seller, what I have is actually a N900W8. The seller had replaced the screen and did a motherboard swap. The result is a phone with markings that say N900T but after a boot up provides software descriptions showing N900W8.
Why do I want to use Simple Mobile so bad? : Simple mobile charges me 40.00 + tax for Unlimited Data, Calls and Texts domestically + limited international texting to certain countries. For me, that is a great deal and I dont have to do a contract or pay extortionate fees to other providers. Yes, I am a cheap Bas*&^d as evidenced by me buying used phones to save a few hundred $$$'s here and there.
Dilemma: In my bid to purchase a Note 3 that works I looked at the Simple Mobile site. They do indeed sell a new model N900T, Link here: <http://www.mysimplephones.com/Samsung-Galaxy-Note-III-Simple-Mobile.html> HOWEVER, when you look at another page for compatible phones you will find that the N900T is not even a compatible model for Simple Mobile's 4G LTE service. YOU WILL HOWEVER FIND that there are two models of Note 3 that WILL work. The N900W8 (Canadian Model) and the N900A (ATT). This link shows those compatible 4G LTE phones: <http://simplemobileinfoblast.com/4glte/phones.php>
Interesting note: While I do actually have a 4G LTE compatible phone technically, since the phones software shows it is a N900W8 despite the shell being embossed N900T, it will not work AT ALL on my carrier. All attempts result in "NOT REGISTERED ON NETWORK" messages. My research thus far seems to indicate that the N900W8 Models come unlocked as new so I do not feel that my phone is locked.
Conclusion: My Note 1 is broken and I don't want to repair it so I will sell it as is elsewhere. I have a Note 3 N900W8 that will not work that I am going to return to the seller since it is not even the right model to begin with. It should be noted that the screen on the N900W8 WAS replaced but not very well and there are some annoying defects on the underside of the screen as a result. So after all of this expostition, Can anyone please tell me what model of Note 3 to get that will work with my simple mobile SIM?
It is my sincere hope that someone has gone through this same situation and can help guide me a bit.
Thank you
Click to expand...
Click to collapse
OK, so the Note N9005 is the same as the T and w8 models except for the radio differences. From the sounds of it the N3 you pruchased may have been blocked as it's carrying the not registered on network error (which is the common one for this) however. it's possible it's locked down but my understanding is the w8 is quite unrestricted.
IN regards to what model you should/need to use, if your carrier is under the T-Mo umbrella/piggy backs of their network then you need the N900T which is T-Mo's device. - But you may wanna ring T-Mo and ask to be 100% positive.
EDIT You wanna avoid the N900A (ATT) unless you're 100% sure you can get LTE with your provider, there's been a few people who have bough the A model and haven't been able to use it due to it being for ATT only (again, radio issues.)
After re-reading, I think the N900T is the one for sure (especially as Simple sell it (doubt they'll sell a device that isn't LTE compatible?), and I would ring Simple and T-Mo for 100% clarification as obviously, dropping a few hundred $$ on a phone which may not work isn't nice.
radicalisto said:
OK, so the Note N9005 is the same as the T and w8 models except for the radio differences. From the sounds of it the N3 you pruchased may have been blocked as it's carrying the not registered on network error (which is the common one for this) however. it's possible it's locked down but my understanding is the w8 is quite unrestricted.
IN regards to what model you should/need to use, if your carrier is under the T-Mo umbrella/piggy backs of their network then you need the N900T which is T-Mo's device. - But you may wanna ring T-Mo and ask to be 100% positive.
EDIT You wanna avoid the N900A (ATT) unless you're 100% sure you can get LTE with your provider, there's been a few people who have bough the A model and haven't been able to use it due to it being for ATT only (again, radio issues.)
After re-reading, I think the N900T is the one for sure (especially as Simple sell it (doubt they'll sell a device that isn't LTE compatible?), and I would ring Simple and T-Mo for 100% clarification as obviously, dropping a few hundred $$ on a phone which may not work isn't nice.
Click to expand...
Click to collapse
Thank you for reading and replying...
Im quite torn but what you say makes plenty of sense.
I am under the same thought process as yours thinking that the N900T version they sell in their own shop is the model to get.... but then I read about the compatible devices with "4G LTE" and dont even see it, but instead see the N900W8 and N900A models instead. I had the N900V model Note 3 before and it "worked" on my network but the coverage and signal strength suffered greatly and displayed +H most of the time. So the N900V at least worked with my SIM vs the N900W8 not even using the network (it does show ATT and Simple Mobile networks under the network settings but cant register on either one).
I know they are different phones completely but the ATT branded Note 1 gave me no problems at all with my Simple SIM. My wife has the same model Note 1 as me and her phone actually shows 4G LTE next to the bars whereas mine only shows 4G. I called and spoke to CS a few months ago to figure out the disparity and it would seem that since I bought her SIM card more recently that mine (hers 2014 vs mine 2011) that the SIM itself makes the network 4G LTE more friendly somehow. So with that in mind I have ordered a new micro SIM from Simple thinking that it might solve some issues. The only reason I never ordered a new SIM sooner is because I wasnt really worried about the 4G LTE vs 4G problem as my UL/DL speeds were more than adequate. Hence, I am seriously thinking of trying out the N900A model.
I guess the easiest answer is that I think the N900T model "would work" but the compatible model page shows the other 2 models and not the N900T with regards to 4G LTE coverage and NOT general signal coverage.
I am going to ring T mobile and see if this model is locked down, thanks for that, good advice.
In regards to me being 100% sure about the ATT model being LTE compatible, I am thinking it would be possible (not 100% though) with regards to my wife's N1 and newer SIM (hers is also a branded ATT N1 like my broken ATT N1. with an older SIM).
Any thoughts? Thanks again...
The Note 3, changed a lot in regards to the hardware and radios used. Samsung and the carriers in their infinite wisdom trying to lock people down via either region lock, sim lock and boot loader lock downs.
It is possible that the A model will work, it could be that Simple has a deal with T-Mo and ATT in which it can use both carriers towers for H+ and LTE.
See what T-Mo say, and even give ATT a ring also, no harm in asking them direct.
Also as you've stated the sim may also have something to do with picking up LTE straight of the bat.
Ring T-Mo/ATT see what they say, then that way you know which way to go and at least doing it that way you have the comfort in knowing that the provider themselves have assured you what will and won't work.
Sent from my Spectrum ZX +2
radicalisto said:
The Note 3, changed a lot in regards to the hardware and radios used. Samsung and the carriers in their infinite wisdom trying to lock people down via either region lock, sim lock and boot loader lock downs.
It is possible that the A model will work, it could be that Simple has a deal with T-Mo and ATT in which it can use both carriers towers for H+ and LTE.
See what T-Mo say, and even give ATT a ring also, no harm in asking them direct.
Also as you've stated the sim may also have something to do with picking up LTE straight of the bat.
Ring T-Mo/ATT see what they say, then that way you know which way to go and at least doing it that way you have the comfort in knowing that the provider themselves have assured you what will and won't work.
Sent from my Spectrum ZX +2
Click to expand...
Click to collapse
I'm looking up the contact numbers for T Mobile now and will probably try to look at what ATT has to say/can do.
Simple Mobile, bless their hearts, to keep things so cheap use a calling center in the Philippines and have been of very little help to me trying to figure this out.
I'll keep this thread updated but I'm still torn between the N900V and N900A, only leaning towards the N900A because of the link I shared earlier with regards to 4G LTE compatibility. :/
Thanks again Radicalisto.
Hope you get it sorted, let me know the outcome I'm quite curious now myself. Good luck!
Sent from my Spectrum ZX +2
radicalisto said:
Hope you get it sorted, let me know the outcome I'm quite curious now myself. Good luck!
Sent from my Spectrum ZX +2
Click to expand...
Click to collapse
So I have finally reached a solution.
After all of the hassle and trial and error, I was able to get a Note 3 to work with 4G LTE by using a Note 3 model N900A and an updated Simple Mobile Sim card.
It seemed a little counter intuitive to use an ATT branded phone versus a T Mobile branded phone knowing that Simple is undercarried by T mobile but that is just what it took.
It should be known that I did not try and use my "old" SIM from Simple but ordered a new one and had my number transferred to the new SIM before the phone arrived. The rational behind purchasing a new SIM was based on the experience of my wife and I using our Note 1(s). Both of our Note 1(s) were ATT branded (i717). Though I bought her Simple SIM about 2 years after my own. The result was my phone only showed 4G while hers would should 4G LTE. Strange being they are both the same model phone with the same carrier but that was the fix: updated SIMs, whether it was embedded software or something else.
So for now, I can close this little chapter and enjoy my Note 3.
If anyone else is reading this, please feel free to message me and I will be happy to share anything I may have forgotten to share here.
Thanks to everyone who helped as well, I know I have a few threads on XDA looking for solutions. :/
Wallace
Good stuff, glad you got it sorted

N910C Mainboard in N910A chassis

Hey guys, I purchased a N910C which ended up meeting a grim fate but they mainboard was still working fine * tested it on a friends 910c chassis. My question is with the variant with Exynos vs Qualcomm will there be any issue ( service and connection ) with installing a Exynos N910c motherboard on a ATT N910A chassis?
** I am aware the N910C is missing a band for ATT but just wondering of any faults since they are both GSM models.
Thanks in Advance.
Enigma_cpl03 said:
Hey guys, I purchased a N910C which ended up meeting a grim fate but they mainboard was still working fine * tested it on a friends 910c chassis. My question is with the variant with Exynos vs Qualcomm will there be any issue ( service and connection ) with installing a Exynos N910c motherboard on a ATT N910A chassis?
** I am aware the N910C is missing a band for ATT but just wondering of any faults since they are both GSM models.
Thanks in Advance.
Click to expand...
Click to collapse
All note 4 variants are built on the same size chassis. As long as you use all N910C modules, there won't be any issues after installing the motherboard on the N910A chassis-any variant in this regards.
I understand if If swap everything out it will work. I am speaking of the situation where the mainboard is swapped and nothing else. So N910C mainboard and N910A everything.
That is my concern.
Enigma_cpl03 said:
I understand if If swap everything out it will work. I am speaking of the situation where the mainboard is swapped and nothing else. So N910C mainboard and N910A everything.
That is my concern.
Click to expand...
Click to collapse
I know this answer is old, but yes, the phone itself will still work, with the exception of anything camera-related, since the Exynos variant uses Samsung's ISOCELL sensor, while the SD805 ones use Sony's. Which means you'll have to replace the camera sensor too if you want a fully-functional Note 4. Learned that the hard way with my AT&T Note 4, using motherboard taken from the N910S variant.
I just put a 910f mainboard in an att chasis and everything works great so far

Shall N910a chip work well on another region

Hi,
I have a little information about Note 4 versions.
I have a new Samsung Galaxy Note 4 N910a AT&T Unlocked phone. I wonder shall it work well in Middle east and Europe??
or there are something I can do to enhance the carrier performance.
thank you

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