I've read that the att version of this has a locked bootloader. I've also skimmed and read there are different versions of the bootloader for this phone as well.
My question is that I'm going to try to buy one off ebay but I want to make certain that I can root and install custom roms and kernels. I don't care about warranty info so thats no problem. However can you root on any bootloader or only the old one? If there is any info on this I'd to read about it. I just don't want to buy an updated phone and not be able to do anything with it like I did my optimus g pro which is not properly unlocked. Because if the bootloader effects this then I'll have to ask selllers what version it has and they likely won't know. I also read there are different modems and such with this. I just want to make sure i have total control over this phone unlike some that haven't been hacked thoroughly.:angel:
So if anyone wants to call me a noob and direct me towards a thread here I would gladly appreciate it.
The T-Mobile version DOES NOT have a locked bootloader, only Knox. Make sure you get an SM-N900T if you don't like locked bootloaders. The AT&T version is labeled SM-N900A, verizion is SM-N900V, and sprint is SM-N900P. All except the SM-N900T (and the Canadian SM-N900W8) have locked bootloaders.
Rather than start a new thread, I got a note3 in the mail. I know its an n900t but i don't know anything else about it yet.
my question is, I've seen a few things that say hlte and hltetmo. I'm researching how to do this stuff so I kinda know about it when the phone gets here. My question is, Ive seen this on the cyanogenmod website and twrp website.
Whats the difference? if any? I assume the tmo versions are for our phones, but if the regular hlte work then why the "split" in versions?
also what is generally the "best" most compatible recovery? I've seen cwm, philz cwm and twrp. I was just wondering if someone could just tell me which is the most stable
I just got the phone so i'll be looking into whats the best but if anyone has any suggestions for my previous post I'ld greatly appreciate it
I suggest avoid 'hlte' and always choose 'hltetmo'. 'hlte' might be the international version and with some things, like custom Recovery, it will cause boot-loops on the SM-N900T. When you see something contradicting what I just wrote assume it to be true for only that thing.
Frank
Related
I have a SGH-I467 (Not for resale version)
I don't care about any of the AT&T features (LTE or Data) I just want to root this tablet and install custom ROMs on it.
My question is:
Can I do any of this yet? If so, how?
Thanks!
I have the same device, can I safely use the N5100 ROMs, Kernels and add-ons ?, thanks
brosenz said:
I have the same device, can I safely use the N5100 ROMs, Kernels and add-ons ?, thanks
Click to expand...
Click to collapse
I have the same device, and I cannot find anything at all. Root, OR ROM related anyone? anyone at all?
CHi77 said:
I have the same device, and I cannot find anything at all. Root, OR ROM related anyone? anyone at all?
Click to expand...
Click to collapse
Same here
terra-starr said:
Same here
Click to expand...
Click to collapse
Same here,
Maybe XDA could start a new section just for the SGH-I467 ?
This might be a long shot and I don't advise anyone doing this unless you're comfortable possibly bricking your device, but maybe you could odin a wifi or international image to your AT&T Note and use their exploits to gain root.
update
Anyone able to suceed at root yet?
This is why I bought the international version and just pop my US SIM in. LTE is nice and everything but I prefer having phone functionality and H+. The At&t version is modified to remove the phone features and add the american LTE. With that in mind I wouldn't flash a international rom on it.
If you do flash an international rom make sure u remove the modem/radios and you will have to make sure the "parts line up". There are memory addresses for the kernel/radio/os etc. I'm not sure if they are in the same places. If they are not then you will brick your device if for instance u put the kernel where the bootloader is suppose to be. I wouldn't try anything unless your still covered by the money back warranty.
TLDR: Let one of the seasoned Root developers find an exploit. I'm sure they could if they have the time and the device.
SAMSUNG-SGH-I467 Root Completed
Hello, try this at your own risk.
http://forum.xda-developers.com/showthread.php?t=2335863&page=5
Hi, I have looked around for a while, but have not received direct answers to these questions, any help would be appreciated. I am not new to rooting since I have rooted and flashed my previous phone (HTC Wildfire S), but these questions were unanswered to me, irregardless of where I looked.
-First, I know that when you gain root access you may toy around with your phone, but by rooting your device do you damage it? I am concerned about this because when I had a Wildfire S I rooted it and within a week it had MAJOR bugs, without flashing or moving any setting.
-Second, how do you perform a nandroid backup? I know that this is kind of a safety net to your device if it ever gets soft-bricked, but how do you do it? I have not had a clear explanation on how to do it.
-Third, I know that CyanogenMod is one of the most stable custom ROMS that there is out there, but does it offer Pure Android?
-Fourth, if any of you know any good (and stable) custom ROMS for the T-Mobile Galaxy S3, could you send them to me please?
-Fifth, I know that with some ROMS you lose certain features (such as video playback in some ROMS, yeah I know sounds terrible) but if I flash a ROM that does support this, do I gain the feature back or do I lose the feature forever?
Going through the same process
amezcuaesteban said:
Hi, I have looked around for a while, but have not received direct answers to these questions, any help would be appreciated. I am not new to rooting since I have rooted and flashed my previous phone (HTC Wildfire S), but these questions were unanswered to me, irregardless of where I looked.
-First, I know that when you gain root access you may toy around with your phone, but by rooting your device do you damage it? I am concerned about this because when I had a Wildfire S I rooted it and within a week it had MAJOR bugs, without flashing or moving any setting.
-Second, how do you perform a nandroid backup? I know that this is kind of a safety net to your device if it ever gets soft-bricked, but how do you do it? I have not had a clear explanation on how to do it.
-Third, I know that CyanogenMod is one of the most stable custom ROMS that there is out there, but does it offer Pure Android?
-Fourth, if any of you know any good (and stable) custom ROMS for the T-Mobile Galaxy S3, could you send them to me please?
-Fifth, I know that with some ROMS you lose certain features (such as video playback in some ROMS, yeah I know sounds terrible) but if I flash a ROM that does support this, do I gain the feature back or do I lose the feature forever?
Click to expand...
Click to collapse
I'm going through this same process now, and am new also--I rooted an old mytouch 3g slide and flashed CM7 on it. Afterwards it was bit buggy, but it was a bit buggy before too, hardware issues I think.
I think rooting in and of itself shouldn't mess up your phone, but if you don't do it correctly it could surely screw things up.
Do you have the T999 or T999L? which version will matter in terms of ROM flashing details (for example, I have the T999L, which is the LTE version)
Let me know of the progress you have on these questions!
I'm going through this same process now, and am new also--I rooted an old mytouch 3g slide and flashed CM7 on it. Afterwards it was bit buggy, but it was a bit buggy before too, hardware issues I think.
I think rooting in and of itself shouldn't mess up your phone, but if you don't do it correctly it could surely screw things up.
Do you have the T999 or T999L? which version will matter in terms of ROM flashing details (for example, I have the T999L, which is the LTE version)
Let me know of the progress you have on these questions!
Click to expand...
Click to collapse
I unfortunately have the T999. I know that mine won't be able to get LTE which is sad, but is this something that I MUST look into before flashing a ROM? Like are the t999 and T999L that different, I mean it is ONE chip.
amezcuaesteban said:
I unfortunately have the T999. I know that mine won't be able to get LTE which is sad, but is this something that I MUST look into before flashing a ROM? Like are the t999 and T999L that different, I mean it is ONE chip.
Click to expand...
Click to collapse
It's something to be aware of. I believe most of the T-mobile gs3 ROMS are built with the T999 in mind though, so you shouldn't really worry too much.
DocHOliday77's thread [INFO] [FAQ] Galaxy S3 w/ LTE - SGH-T999L & SGH-T999N points to some discrepancies between the T999 and T999L though
If you find my answers useful, push my thanks button! I need 10 to get full xda credentials
amezcuaesteban said:
Hi, I have looked around for a while, but have not received direct answers to these questions, any help would be appreciated. I am not new to rooting since I have rooted and flashed my previous phone (HTC Wildfire S), but these questions were unanswered to me, irregardless of where I looked.
-First, I know that when you gain root access you may toy around with your phone, but by rooting your device do you damage it? I am concerned about this because when I had a Wildfire S I rooted it and within a week it had MAJOR bugs, without flashing or moving any setting.
Rooting does nothing but give you SuperUser access to your phone. That is literally all it does. Now what you do with it can cause major headaches.
-Second, how do you perform a nandroid backup? I know that this is kind of a safety net to your device if it ever gets soft-bricked, but how do you do it? I have not had a clear explanation on how to do it.
Install a custom recovery such as TWRP or Clockwork (CWR), then boot into recovery via key combo (Power+VolDown+Home, see blue light at top left and release the keys). From there you will see how Back Up/Restore options.
-Third, I know that CyanogenMod is one of the most stable custom ROMS that there is out there, but does it offer Pure Android?
Many ROMs out there. Just need to read the OPs for what you want.
-Fourth, if any of you know any good (and stable) custom ROMS for the T-Mobile Galaxy S3, could you send them to me please?
Not allowed and don't ask this type of question. All it ever turns into is an EPeen contest and will surely get the thread closed down.
-Fifth, I know that with some ROMS you lose certain features (such as video playback in some ROMS, yeah I know sounds terrible) but if I flash a ROM that does support this, do I gain the feature back or do I lose the feature forever?
This is exactly what a Nandroid backup is for. Something that you don't like or something borks, then just boot into recovery and restore your last working ROM backup. Kind of the point. Not sure I have ever heard of a ROM losing video playback as all are pretty much optimized nowadays.
Click to expand...
Click to collapse
See my edits in Red.
el_garicimo said:
I'm going through this same process now, and am new also--I rooted an old mytouch 3g slide and flashed CM7 on it. Afterwards it was bit buggy, but it was a bit buggy before too, hardware issues I think.
I think rooting in and of itself shouldn't mess up your phone, but if you don't do it correctly it could surely screw things up.
Do you have the T999 or T999L? which version will matter in terms of ROM flashing details (for example, I have the T999L, which is the LTE version)
Let me know of the progress you have on these questions!
Click to expand...
Click to collapse
See my part above about Rooting. You are correct in that it doesn't affect anything whatsoever. It is what you do with it.
I am pretty sure that most are based off T999 code and in order to have the LTE, you have to flash the LTE modem. Might want to ask Doc about that as he has/had the T999L.
Also, CM7 was a long time ago and things have massively progress since then.
amezcuaesteban said:
I unfortunately have the T999. I know that mine won't be able to get LTE which is sad, but is this something that I MUST look into before flashing a ROM? Like are the t999 and T999L that different, I mean it is ONE chip.
Click to expand...
Click to collapse
See my reply above.
el_garicimo said:
It's something to be aware of. I believe most of the T-mobile gs3 ROMS are built with the T999 in mind though, so you shouldn't really worry too much.
DocHOliday77's thread [INFO] [FAQ] Galaxy S3 w/ LTE - SGH-T999L & SGH-T999N points to some discrepancies between the T999 and T999L though
If you find my answers useful, push my thanks button! I need 10 to get full xda credentials
Click to expand...
Click to collapse
This is false. You don't need 10 Thanks to get your credentials. You need 10 posts in order to lose the Captcha and be able to post in the Development threads. Please do not post a question in the Dev thread or even worse a "Thanks". This link should explain it all for you.
So my dad bought a GS3 and it shows that it's a t999 model in the settings. It's on UVDMD5 has the UVDMD5 radio as well. I was going to odin flash to the new 4.3 root 66 but it threw out an error. I looked at the phone and in download mode it shows it's a i-747 so I'm super confused right now. I also have an s3 myself and when I remove the battery and check my phone it shows model: sgh-t999 and also shows t999 in download mode as well. On the new phone my dad purchased it shows model: GT-T999 where the battery goes. So yeah I'm pretty confused. I managed to flash the tmo twrp and flashed superuser zip and rooted it sucessfully but I wanted to update it to 4.3 but now I'm not even sure what firmware to flash
Looks like yet another frankenphone. Wish I knew where these things were coming from!
Its hard to tell you what to do, but if it currently had MD5 on there, you probably need to stick with T999 firmware. Well, maybe....
Install terminal emulator and enter this:
getprop ro.bootloader
This will tell you what the firmware is. You cant judge by the rom or baseband.
Anyway, almost every time ive seen these things, the recommendation is usually to see if you can return the device. Theres just too many questions and things that dont match up. If you plan on using it as is, and never care about updates and such, I guess it might be ok, but otherwise theres just too great a chance for future problems!
For starters, there's no such thing as a GT-T999. And If download mode says its an I747, id guess youre using the I747 base firmware/bootloader. However, your system and baseband are from the T999 firmware, so we can be pretty confident that flashing I747 firmware will not work. But you probably can only flash I747 firmware because thats what your bootloader appears to be! Very confusing, very messed up, I know! Its highly possible, judging by the GT-T999, that it might be a chinese knock-off.
It may or may not help, but install Phone Info - Samsung app. Then let me know what it tells you. I dont think theres going to be a lot we can do though, but ill be glad to take a look anyway.
DocHoliday77 said:
Looks like yet another frankenphone. Wish I knew where these things were coming from!
Its hard to tell you what to do, but if it currently had MD5 on there, you probably need to stick with T999 firmware. Well, maybe....
Install terminal emulator and enter this:
getprop ro.bootloader
This will tell you what the firmware is. You cant judge by the rom or baseband.
Anyway, almost every time ive seen these things, the recommendation is usually to see if you can return the device. Theres just too many questions and things that dont match up. If you plan on using it as is, and never care about updates and such, I guess it might be ok, but otherwise theres just too great a chance for future problems!
For starters, there's no such thing as a GT-T999. And If download mode says its an I747, id guess youre using the I747 base firmware/bootloader. However, your system and baseband are from the T999 firmware, so we can be pretty confident that flashing I747 firmware will not work. But you probably can only flash I747 firmware because thats what your bootloader appears to be! Very confusing, very messed up, I know! Its highly possible, judging by the GT-T999, that it might be a chinese knock-off.
It may or may not help, but install Phone Info - Samsung app. Then let me know what it tells you. I dont think theres going to be a lot we can do though, but ill be glad to take a look anyway.
Click to expand...
Click to collapse
Yes it was super confusing! It's so weird. I did the getprop ro.bootloader and I got I747UCALI5. I'm kinda scared to odin anything since I really have no idea what model I actually have so I just ended up flashing the latest PA rom & so far everything seems fine
Yup, its exactly as I expected! I747 bootloader/base firmware with T999 system and modem. These are not things that should work together and it also means there is no safe way to update your firmware. LI5 sounds like its really old btw. But tbh, I dont know if its even a real build number! I can say you will not be able to run TW kk roms and might not be able to run 4.3 ones as well. CM/aosp, im not sure about, but I know they were known to be really buggy on older firmware.
If it is an option, I strongly suggest seeing if you can get a refund. May I ask where it was bought from? I think whenever we run into these we need to start letting people know not to purchase from those sellers. For one, to protect folks from having this happen to them, but also to try and discourage this type of business practice (if you even want to call it that!). Its almost as bad as people who sell devices and then report them lost!
---------- Post added at 06:08 PM ---------- Previous post was at 06:06 PM ----------
Just checked and LI5 is a real build, but it is old. 4.1.1
DocHoliday77 said:
Yup, its exactly as I expected! I747 bootloader/base firmware with T999 system and modem. These are not things that should work together and it also means there is no safe way to update your firmware. LI5 sounds like its really old btw. But tbh, I dont know if its even a real build number! I can say you will not be able to run TW kk roms and might not be able to run 4.3 ones as well. CM/aosp, im not sure about, but I know they were known to be really buggy on older firmware.
If it is an option, I strongly suggest seeing if you can get a refund. May I ask where it was bought from? I think whenever we run into these we need to start letting people know not to purchase from those sellers. For one, to protect folks from having this happen to them, but also to try and discourage this type of business practice (if you even want to call it that!). Its almost as bad as people who sell devices and then report them lost!
---------- Post added at 06:08 PM ---------- Previous post was at 06:06 PM ----------
Just checked and LI5 is a real build, but it is old. 4.1.1
Click to expand...
Click to collapse
Just asked my dad & he said he bought it from a pawnshop which isn't surprising why there is so much confusion about the model lol. Would having an old bootloader cause problems? I was able to flash the latest PA beta but I haven't encountered any issues as of yet
I dont use non touchwiz roms, but I do remember they all started requiring certain bootloaders nrcsuse they were encountering too many bugs on older ones. I dont know any details though.
Id imagine youll encounter issues flashing any rom thst has the assert check. It checks to make sure you have a certain bootloader, and most here will be checking for T999 builds. Since yours has the I747 bootloader, it may cause trouble flashing certain roms.
That and you wont be able to easily or safely update the firmware...
Not sure theres much that could be done since it came from a pawn shop though.
DocHoliday77 said:
I dont use non touchwiz roms, but I do remember they all started requiring certain bootloaders nrcsuse they were encountering too many bugs on older ones. I dont know any details though.
Id imagine youll encounter issues flashing any rom thst has the assert check. It checks to make sure you have a certain bootloader, and most here will be checking for T999 builds. Since yours has the I747 bootloader, it may cause trouble flashing certain roms.
That and you wont be able to easily or safely update the firmware...
Not sure theres much that could be done since it came from a pawn shop though.
Click to expand...
Click to collapse
Yeah this whole situation has been odd. I'll advise my dad to avoid pawnshops from now on lol. Whenever I was in download mode I noticed the flashcount had shown 3 and I ended up using triangle away to reset it when I was still on 4.1.2 for the moment. Before I rooted it or anything it already had supersu installed but I don't think the phone was actually rooted cause everytime I would open supersu it would tell me to update the binary and it would fail each time and any other root apps I installed were denied root. The phone still had stock recovery as well. I honestly thought it was a t-999 up until I was going to flash the nc2 update and it failed and that's when I realized hey this isn't really a t999. I ended up flashing twrp instead and flashed the supersu zip to get root. I flashed paranoid android afterwards and when I went to about phone i noticed everything changed from t-999 to I747 including the modem. It was weird. I ended up reflashing att twrp just to be safe, I flashed the latest modem from at&t, and I crossed my fingers & bravely flashed a zip that updated my bootloader to the latest one for the I747 and it actually worked which was a huge sigh of relief. I reflashed paranoid android afterwards and so far no issues. Now that I updated everything I might end up just flashing a touchwiz rom from the at&t forums. Thanks for your help though, I greatly appreciate it! :good:
Hello!
Quick question: I'm in Britain and have an unlocked s-off M8. What would happen if I flashed a Verizon/Sprint One (for example) M8 rom on my phone? Would it simply not make calls? Would it brick the phone? I'm intrigued to know.
Cheers.
Em
Might be risky. I don't know if anyone here has tried.
The hardware may even be different (for Sprint and Verizon CDMA variants vs. GSM versions). Some claim yes, others say no. And I haven't seen definitive evidence either way, so that part is not clear either.
I think a couple folks here bricked mixing the variants when flashing TWRP recovery (GSM recovery on a CDMA variant)? But from what I understand that is something that was fixed in TWRP.
I wouldn't risk it, unless you have a compelling reason to do so. May I ask why? I figured there was more development on the GSM version, anyway. Or just asking academically?
redpoint73 said:
Might be risky. I don't know if anyone here has tried.
The hardware may even be different (for Sprint and Verizon CDMA variants vs. GSM versions). Some claim yes, others say no. And I haven't seen definitive evidence either way, so that part is not clear either.
I think a couple folks here bricked mixing the variants when flashing TWRP recovery (GSM recovery on a CDMA variant)? But from what I understand that is something that was fixed in TWRP.
I wouldn't risk it, unless you have a compelling reason to do so. May I ask why? I figured there was more development on the GSM version, anyway. Or just asking academically?
Click to expand...
Click to collapse
Thanks for the fullness of your reply. Much appreciated.
As for your question: I've been wondering since got my M8. I've mainly had a Nexus 5 for the past few months and there's never been alternate versions. I noticed that there's a CM12 ROM flying around, and I'm a flash addict, so the hypothetical became slightly more actual.
Although if there's a chance of a brick, then it can stay in the land of hypotheticals
So my mother just handed me her phone, and asked me to unlock it for her. She was on T-Mobile and wants to switch carriers, but for some reason T-Mobile won't give her an unlock code to do so. She definitely owns the phone, she's had the thing for years and paid it off long ago. Warranty isn't a concern, data loss isn't a concern (already backed everything up), I just want to get this thing unlocked. I hear the usual method for doing so is to downgrade to 4.1 and use the service menu (4.3 lacks the NW LOCK NV DATA INITIALIZ option) but I want to make sure I'm doing it right. I'm quite capable of following directions, I just can't quite seem to find any since OH1 is relatively new. I found some guides based on older firmwares, but I'd like some advice from some people with more know-how before I end up flashing a ROM that displeases the almighty KNOX overlord and bricks the thing.
TL;DR:
Have SGH-T999L on 4.3 and T999LUVUBOH1. Warranty not an issue. Need to know the safest way to unlock, and also ideally root. Kinda afraid to follow older guides without the go-ahead from someone in the know, since OH1 is so new.
Unfortunately, once on 4.3 the free unlock method is useless as you cannot downgrade. The only other option I know of is to buy an unlock code online. There are several sites you can find with a quick search, or you can find them on eBay as well. Its pretty cheap as I recall though.
Sorry I don't have a better answer for you.
As for rooting it, towelroot should work just fine. I have a thread about it in the general section. I'll be testing it on OH1 later today if you want to wait for confirmation, but it should be safe to try regardless.
Sent from my SAMSUNG-SGH-T999 using Tapatalk
DocHoliday77 said:
Unfortunately, once on 4.3 the free unlock method is useless as you cannot downgrade. The only other option I know of is to buy an unlock code online. There are several sites you can find with a quick search, or you can find them on eBay as well. Its pretty cheap as I recall though.
Sorry I don't have a better answer for you.
As for rooting it, towelroot should work just fine. I have a thread about it in the general section. I'll be testing it on OH1 later today if you want to wait for confirmation, but it should be safe to try regardless.
Sent from my SAMSUNG-SGH-T999 using Tapatalk
Click to expand...
Click to collapse
You can't downgrade at all? I was following this thread, where you commented: http://forum.xda-developers.com/showthread.php?t=2635794 and I thought what was being said was that this "root66mjc" firmware would allow downgrading the ROM to a 4.1.x version, which could then use the dialer code/[4] NW LOCK NV DATA INITIALIZ method. But this guide was for the T999, not the T999L, and I don't see any "root66oh1" or the like for a T999L, so I figured it wouldn't work on the T999L (but was hopeful that there might be an equivalent, or the potential for one)
I guess the important question is, is this "debug screen" through the dialer (through which one can unlock the phone) a function of the ROM or the firmware? i.e. if I rooted and flashed a custom ROM, could the custom ROM potentially unlock it, or are we just totally SOL here because the firmware is (currently?) impossible to downgrade? (I'm never one to believe that anything is completely unhackable, but I suppose the S3 is old enough that most of the community has moved on and stopped bothering.)
Ah, well. If there's nothing that can be done here and T-Mobile won't cooperate, I suppose we could just sell it (it is a functional phone that does belong to her, after all) as a T-Mobile locked phone and pay the difference to buy another one that is unlocked/unlockable.
No way to unlock the phone for free and any attempts to downgrade the bootloader to 4.1.1 from 4.3 may hard brick the phone.
Easiest way to unlock the phone is to buy a code.
DocHoliday77 said:
Unfortunately, once on 4.3 the free unlock method is useless as you cannot downgrade. The only other option I know of is to buy an unlock code online. There are several sites you can find with a quick search, or you can find them on eBay as well. Its pretty cheap as I recall though.
Sorry I don't have a better answer for you.
As for rooting it, towelroot should work just fine. I have a thread about it in the general section. I'll be testing it on OH1 later today if you want to wait for confirmation, but it should be safe to try regardless.
Sent from my SAMSUNG-SGH-T999 using Tapatalk
Click to expand...
Click to collapse
I have a t999l with t999luvuboh1 and towelroot states device not supported. Any other ideas on how to root because i need to use mobile hotspot with out the T-Mobile provision.