[Q] N910G from Telstra (Australia) - Bootloader locked? - Galaxy Note 4 Q&A, Help & Troubleshooting

Hi all,
I know there are a few posts on bootloaders on the Galaxy Note 4 already, but none have answered my question.
I have just gotten this phone from Telstra in Australia, which I want to root and install a custom recovery on, but I am not sure if the bootloader is locked, or if this matters. It seems that most people can root with a locked bootloader, but I have read in other places that you can't, or that it may brick the phone. I've also read that Telstra doesn't lock the bootloader if it isn't locked from the manufacturer, but don't want to take the risk without knowing, if it can brick my phone.
ODIN MODE (HIGH SPEED)
PRODUCT NAME: SM-N910G
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
REACTIVATION LOCK(KK): OFF
KNOX WARRANTY VOID: 0x0
QUALCOMM SECUREBOOT: ENABLE (CSB)
RP SWREV: S1, T1, R1, A1, P1
SECURE DOWNLOAD : ENABLE
UDC START
The above is what I get in download mode, so does this mean the bootloader is locked? Or can you not tell from this information?
If it is locked, then can I still root the phone, and install a custom recovery? Or, despite what I have read elsewhere, is it harmless to try?
Thanks in advance
Ben

I have the N910G from Telstra too. I believe it is not network locked.
1. Does no network lock necessarily mean the bootloader is unlocked?
2. Is there some app (or other method) that can definitively determine the status of the bootloader please?
Regards

I think you're right that it isn't network locked, but I don't think that relates to the bootloader.
I have worked out that QUALCOMM SECUREBOOT: ENABLE (CSB) does not necessarily mean that the phone is bootloader locked. No google search was able to tell me that, but I found this video where the guy shows his phone in download mode, with the same 'secureboot' status, and then goes on to successfully root it. There is also reason to believe that it isn't bootloader locked, because according to this thread, Telstra does not lock bootloaders where they are unlocked from the manufacturer. But having said that, I'm hesitant to try rooting my phone without knowing for sure.
So my questions are:
1. (same as yours) Is there a way to determine if the bootloader on these phones is unlocked? And
2. Is it safe to try rooting if the bootloader is locked?
Hopefully someone can help, but otherwise it may come down to someone just trying it and reporting whether or not it is successful.

Australian note 4 optus
Just thought i would let ya know i have rooted my virgin/optus note 4 with no probs.
Twrp recovery and exposed installed.

joeljody said:
Just thought i would let ya know i have rooted my virgin/optus note 4 with no probs.
Twrp recovery and exposed installed.
Click to expand...
Click to collapse
Thanks for letting us know. It's looking more and more likely that the bootloader won't be locked, so I think I'm just going to have to give it a go.

Well, my phone's rooted. After seeing someone who tried rooting a Verizon Note 4 here, without causing any problems, I decided to try it myself, and it was successful first time. I have TRWP installed, and things like fingerprint scanning, private mode and S Health are all working, until I install Xposed, which I am still trying to sort out.
So just letting anyone who's interested know, the Telstra Note 4 is not bootloader locked. Still no idea on any other ways of checking the bootloader status though.

That's excellent news Benanna88. Just to confirm: You used cf-auto Root method, correct?
Also, what are you calling 'private mode' please?
And, did you ever get a response from Samsung about the bootloader?
Regards

Yes I used CF Auto Root, specifically following the video I mentioned above.
Private mode is something that lets you hide things like photos and s notes. It stops working when you install xposed, and so far there doesn't seem to be an actual solution, but I think it still works for some people.
And no, still no response from Samsung, despite three different methods of contact.

Related

[Q] Soft brick? Hard brick? Sort of firm'ish brick really

I've made a bit of a mess and I need help please. My s4 is softbricked, but as softbricks go, it's rather hard.
I have an early S4 i9505 bought from Carphone Warehouse (UK, unlocked, pre knox). I rooted it, installed TBackup, greenify and got it how I wanted it. Then I downloaded a stock firmware from Sammobile and tested to see if I could get it back to 'warranty' condition, which was a success.
Confident that I could obtain warranty if I needed it, I re-rooted it, installed TB and greenify, and it ran sweetly for months from that point onwards.
I read about the arrival of updates (and knox) and concluded I didn't need them. It was working, leave it alone.
Then out of the blue, my nice stable machine broke. I didn't change anything I was aware of to cause it.
No normal boot.
No recovery.
Download only.
Using Odin, I tried allsorts, eventually getting the same Sammobile firmware to run.
2 days later, it broke again, same as before, but worse!?
Then I tried all sorts of stuff downloading no end of things trying to get it to boot or even go into recovery. The most promising approach was to reload the firmware along with a .pit file, but still no joy. I've lost track of the other things I tried, but I've been doing it for a week, so a lot has been done. In desperation, I even tried downloading the latest firmware, so I now have signs of knox of the odin page.
I now have the following symptoms:
Booting into recovery brings up the blue 'booting recovery' message then just blackness.
Normal boot is exactly the same as above.
Unpowered conection to my laptop gives a 5 second boot loop featuring the buzz only.
I can reliably boot into download and download stuff with Odin and change the little Odin page status messages. After (foolishly) trying the latest firmware, these messages say
ODIN MODE
PRODUCT NAME GT-I9505
CURRENT BINARY Samsung Official
SYSTEM STATUS Official
KNOX KERNEL LOCK 0x0
KNOX WARRANTY VOID 0x0
CSB-CONFIG-LSB 0x30
WRITE PROTECTION: enable
eMMC BURST MODE enabled
Please can anyone give me some advice on what else I could try?
Thanks
Steve
Wrinklespots said:
ODIN MODE
PRODUCT NAME GT-I9505
CURRENT BINARY Samsung Official
SYSTEM STATUS Official
KNOX KERNEL LOCK 0x0
KNOX WARRANTY VOID 0x0
CSB-CONFIG-LSB 0x30
WRITE PROTECTION: enable
eMMC BURST MODE enabled
Please can anyone give me some advice on what else I could try?
Thanks
Steve
Click to expand...
Click to collapse
If anything else is not working (especially, if you're unable to go to recovery) I'd call sammy service center. Your download mode says that you did not rooted your phone, and knox is untouched either.
spamtrash said:
If anything else is not working (especially, if you're unable to go to recovery) I'd call sammy service center. Your download mode says that you did not rooted your phone, and knox is untouched either.
Click to expand...
Click to collapse
Thanks for looking spamtrash.
I was wondering if I could get away with that. It does look good from the Odin display, but the flash counter must have a pretty high number in it by now! Won't that show up somewhere?
Do you think it does actually have a fault on it, rather than just some software that's messed up and needs tweaking?
Thanks
Steve
Wrinklespots said:
Thanks for looking spamtrash.
I was wondering if I could get away with that. It does look good from the Odin display, but the flash counter must have a pretty high number in it by now! Won't that show up somewhere?
Do you think it does actually have a fault on it, rather than just some software that's messed up and needs tweaking?
Thanks
Steve
Click to expand...
Click to collapse
1. Are you able to go to recovery mode?
2. Assuming that your previous communicates were taken from the screen in download mode - you're clean.
If answer for 1 is: NO, and assuming 2: do not bother the flash counter. Flash counter does not means you messed with custom ROMs, it just means amount of the ROM update tries. As they are unable to prove that the counter was not increased by failed KIES updates, you're safe.
To go deeper, service will have to flash and wipe your phone.
One thing: remove your sd card prior to giving/sending it out.
Try a different usb cable.I was in same boat as you (after stupidly thinking mobile odin pro liked modems).
Luckily I had an unused cable off my tab 3.

[Q] Reading the custom binary counter

Hello all, I've got a AT&T S4 sgh-i337 with the locked mk2 bootloader. Bought new, still under warranty (well.. supposedly
I'm trying to go back to bone stock to return it; I think I did because when going into odin download mode, I see the following:
PRODUCT NAME: SGH-I337
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
KNOX KERNEL LOCK: 0x0
KNOX WARRANTY VOID: 0x0
CSB-CONFIG-LSB: 0x30
WRITE PROTECTION: Enable
eMMC BURST MODE enabled
I did lots of reading and found some info I don't completely understand (go figure haha). I read that even when the S4 does not DISPLAY the binary counter, said counter is still there and reviewed when the phones are returned.
My 2 questions are...
1) if the custom binary counter is indeed there, is there an adb shell command I can run to READ the counter?
2) if the binary counter is there and I need to reset it... will the triangle away method work with my locked (and "unlockable" mk2 bootloader? -- under supported devices for triangle away, I see "Samsung Galaxy S4 AT&T SGH-I337 UNLOCK BOOTLOADER".. I'm afraid they meant to say "UNLOCKED" bootloader... in which case, I'd be out of luck.
Thanks a bunch!
R
No one knows? any info or guidance? Thanks
The following is just my opinion.
Both Samsung and AT&T offer a 1 year warranty on the Galaxy S IV phones. Since you are on MK2, I would guess your phone is at least 1-1/2 years old, so any worry about the warranty is pointless, since the phone is no longer under warranty.
You want to return the phone to AT&T? If that is the case (you don't state where) then the likelihood of anyone checking any of the counters is extremely unlikely, let alone any hidden counter, if it exists.
In my opinion, I wouldn't worry about it. Just flash it back to full stock, whichever version you can put your hands on, and you'll be fine.
creepyncrawly said:
The following is just my opinion.
Both Samsung and AT&T offer a 1 year warranty on the Galaxy S IV phones. Since you are on MK2, I would guess your phone is at least 1-1/2 years old, so any worry about the warranty is pointless, since the phone is no longer under warranty.
You want to return the phone to AT&T? If that is the case (you don't state where) then the likelihood of anyone checking any of the counters is extremely unlikely, let alone any hidden counter, if it exists.
In my opinion, I wouldn't worry about it. Just flash it back to full stock, whichever version you can put your hands on, and you'll be fine.
Click to expand...
Click to collapse
Thank you very much for taking the time to reply creepyncrawly! Much appreciated.
I was going to return it to Samsung as I bought it refurbished at BB a couple months back.. I believe they honor the 1hr warranty on factory refurb phones (but I might be wrong)
Anywho.. I kept working on it, testing new stuff, different stuff and finally was able to get everything working nicely by forcing it to take the I337UCUFNB1 upgrade.
Thank you again, cheers!

Confused about my Note 3 N900V

I apologize if this is already here, I could not find it using mobile app search. I have a Verizon Note 3 that says SM-N900V both in Odin mode and in settings. However, in Odin mode it doesn't say anything at all about KNOX. No version or warranty or anything similar. The only place it mentions KNOX is also in the settings, and it aayd version 2.3. Every image I've seen pertaining to the Verizon model shows that it has this. I'm curious if mine has the KNOX firmware or just the software?
knox is implemented on the kernel. you can check the status of it if you download knox checker at the play store or going to bootloader. but other than that those are just software check's. to my knowledge
I'm referring to the line in Odin mode that says "KNOX WARRANTY VOID 0x0"(or 0x1 if tampered with). This is absent from mine. There is no mention of KNOX at all in Odin mode, this confused me because I was under the assumption the Verizon model had this.
Pretty sure you don't use Odin for Knox check. Its either volume up power and home button or volume down can't remember. Download mode or something. Some one will chime in I'm sure.
Sent from my SM-N900V using XDA Free mobile app
I would post pics or links if it would let me. To the best of my knowledge, in Odin (download) mode on the phone, most Samsung phones list whether Knox is implemented in the kernel as well as if the phone has been tampered with. The line I have seen in most pics says either "KNOX WARRANTY VOID" or "WARRANTY BIT" followed by a number showing whether the phone has been rooted or tampered with. It shows 0x0 or 0 for phones that haven't been rooted and 0x1 or 1 for phones that have. I am only trying to figure out why it is absent on mine, while I've read that the N900V has this. I'm trying to figure this out because I want to root the device and it makes it difficult when everything but the model number is different from the how-to methods
EDIT: The firmware mine is running is N900VVRUEOF1. And download mode looks like this:
ODIN MODE
PRODUCT NAME: SM-N900V
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
REACTIVATION LOCK: OFF
QUALCOMM SECUREBOOT: ENABLE (CSB )
RP SWREV: S1, T1, R1, A4, P1
SECURE DOWNLOAD: ENABLE
UDC START

any advice greatly appreciated

Hi there, I have a problem with my phone and I was ponited in the direction of this forum to see if anyone would be able to help out. Any assistance woud be very greatly appreciated
I am based in UK and I recently bought myself a Galaxy Note 4. 2nd Hand but as new condition. I tried to do an over the air software update to see if the phone would be able to get a more recent version of Android (it was running 5.0.1) and the phone wouldn't connect to the server. Also whe I tried to connect to Android Pay I got an error saying the device was rooted so I couldn't use the app on this phone. I therefore wanted to unroot the phone
I must stress my real technical knowledge of Android phones is basically at novice level but I tried to unroot the phone using SuperSU which I downloaded from the app store. I ran the unroot option and restarted the phone as prompted but this resulted in my phone being stuck in Bootloop. It wouldn't go past the Samsung load screen
I probably did the worst thing which was panic, went into recovery mode and attempted to factory reset to return the phone to out of box settings. I wiped the cache and did the factory reset but, of course, this hasn't resolved the problem. I then done a bit more reading and downloaded Odin and attempted to find the stock firmware for my phone (Model SM-910F), which i did, but unfortunately when I tried to flash this firmware back to my phone through Odin I get a failed error
So basically i'm on my knees trying to get some technical advice as to what else i can try or how to proceed. I did try taking it back to the Samsung Store and plead ignorance for help but the best I got there was that my main board would need replacing which would probably set me back another 200 nicker. For that money I may as well just buy a new phone. any help would be greatly appreciated as I'm currently left with a very expensive paperweight
Many thanks in advance guys
Lash
lashley82 said:
Hi there, I have a problem with my phone and I was ponited in the direction of this forum to see if anyone would be able to help out. Any assistance woud be very greatly appreciated
I am based in UK and I recently bought myself a Galaxy Note 4. 2nd Hand but as new condition. I tried to do an over the air software update to see if the phone would be able to get a more recent version of Android (it was running 5.0.1) and the phone wouldn't connect to the server. Also whe I tried to connect to Android Pay I got an error saying the device was rooted so I couldn't use the app on this phone. I therefore wanted to unroot the phone
I must stress my real technical knowledge of Android phones is basically at novice level but I tried to unroot the phone using SuperSU which I downloaded from the app store. I ran the unroot option and restarted the phone as prompted but this resulted in my phone being stuck in Bootloop. It wouldn't go past the Samsung load screen
I probably did the worst thing which was panic, went into recovery mode and attempted to factory reset to return the phone to out of box settings. I wiped the cache and did the factory reset but, of course, this hasn't resolved the problem. I then done a bit more reading and downloaded Odin and attempted to find the stock firmware for my phone (Model SM-910F), which i did, but unfortunately when I tried to flash this firmware back to my phone through Odin I get a failed error
So basically i'm on my knees trying to get some technical advice as to what else i can try or how to proceed. I did try taking it back to the Samsung Store and plead ignorance for help but the best I got there was that my main board would need replacing which would probably set me back another 200 nicker. For that money I may as well just buy a new phone. any help would be greatly appreciated as I'm currently left with a very expensive paperweight
Many thanks in advance guys
Lash
Click to expand...
Click to collapse
Go to odin download mode and tell me what exactly your model shows there? Maybe I can help.
Press 3 button combo while phone is turned off to go into download mode.(volume down+home+power)
Or even better if you can take picture and upload it while your phone in download mode.
Trex888 said:
Go to odin download mode and tell me what exactly your model shows there? Maybe I can help.
Press 3 button combo while phone is turned off to go into download mode.(volume down+home+power)
Or even better if you can take picture and upload it while your phone in download mode.
Click to expand...
Click to collapse
Hi and thank you for coming back to me, i get the following
ODIN MODE (HIGH SPEED)
Product Name: SM-910T - (this does confuse me slightly as the phone model actually says SM-910F)
Current Binary: Custom
System Status: Custom
Reactivation Lock: OFF
KNOX Warranty Void: 0x1 (3)
QUALCOMM Secureboot: ENABLE (CSB)
RP SWREV: S1, T1, R1, A2, P1
Secure Download: ENABLE
Hope this is of help
lashley82 said:
Hi and thank you for coming back to me, i get the following
ODIN MODE (HIGH SPEED)
Product Name: SM-910T - (this does confuse me slightly as the phone model actually says SM-910F)
Current Binary: Custom
System Status: Custom
Reactivation Lock: OFF
KNOX Warranty Void: 0x1 (3)
QUALCOMM Secureboot: ENABLE (CSB)
RP SWREV: S1, T1, R1, A2, P1
Secure Download: ENABLE
Hope this is of help
Click to expand...
Click to collapse
Hello there.
Sorry to say but you dont have N910f international model.its refurbished and faked by n910F software.as you can see your download mode shows n910t that's the orignal motherboard model.and also it shows binaries and status custom and not official as it should.also knox is 0×1 it means it was rooted before and warranty was void.
You have sm-N910T that's T-mobile usa model.
You can download latest N910T firmware from www.sammobiles.com/firmwares and flash through odin.
Dont try to flash n910f firmware otherwise it can be bricked and unusable.
Hope this will help.
Trex888 said:
Hello there.
Sorry to say but you dont have N910f international model.its refurbished and faked by n910F software.as you can see your download mode shows n910t that's the orignal motherboard model.and also it shows binaries and status custom and not official as it should.also knox is 0×1 it means it was rooted before and warranty was void.
You have sm-N910T that's T-mobile usa model.
You can download latest N910T firmware from and flash through odin.
Dont try to flash n910f firmware otherwise it can be bricked and unusable.
Hope this will help.
Click to expand...
Click to collapse
Thank you, I'm going to give this a go and see if it works
Many Thanks
lashley82 said:
Thank you, I'm going to give this a go and see if it works
Many Thanks
Click to expand...
Click to collapse
You're welcome.
Make sure after flash firmware go to recovery by pressing (volume up+ home+ power ) while phone is off and do (data factory reset & wipe cache)otherwise it will stuck on Samsung logo at first boot.
First boot will take approximately 15 minutes.

Rooting

I have tried every post I can find on rooting the SM-S550TL and I can't get past Odin. It keeps sboot.bin and then FAIL!. I have done a complete factory reset. Did not setup any accounts. Setup the developer options. Completely lost.
I guess I should have said this first. I have been looking for a phone call recorder that will work. None have so I thought maybe I needed to be rooted. So that is why I am here. So I am having a HELL of a time trying to root. I have NEVER had any big problems rooting before. So there is a pic attached of what Odin says and below is what
my phone screen says after I try to flash:
ODIN MODE
PRODUCT NAME: SM-S550TL
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
FRP LOCK: OFF
Secure Download : Enabled
WARRANTY VOID: 0 (0x0000)
RP SWREV: B:2 K:2 S:2
SW REV. CHECK FAIL. DEVICE: 2, BINARY:1
anaylor01 said:
I guess I should have said this first. I have been looking for a phone call recorder that will work. None have so I thought maybe I needed to be rooted. So that is why I am here. So I am having a HELL of a time trying to root.
Click to expand...
Click to collapse
The S550TL is a TracFone variant of the On5. I would imagine that the S550TL is like all of the other TracFones that are impossible to root. Looking at your pic I'm confused as to why you are flashing a firmware build instead of a custom recovery (TWRP) and then flashing an SU like SuperSU or Magisk to root, but like I said, TracFone is notorious for making rooting an impossibility.
As far as call recording a I used to use an app in the Google Play store called Call Recorder Pro that worked really well. You might want to try something like that instead of trying to unlock that feature through rooting or buy a T mobile variant that you can use with a TracFone Sim card.
Here is what I found out. I am using WIFI calling and NO apps will record calls over WIFI. At least not that I have found.
anaylor01 said:
Here is what I found out. I am using WIFI calling and NO apps will record calls over WIFI. At least not that I have found.
Click to expand...
Click to collapse
Did you check out this thread for rooting? https://forum.xda-developers.com/samsung-galaxy-on5/how-to/sm-s550tl-root-instructions-t3555352. Reading through half of the pages in the thread, there is a lot of valuable info from the comments on how to root your phone.

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