knox reset to 0x0 after repair - Samsung Galaxy S8 Questions and Answers

It's a long story. My note 3 was rooted and knox 0x1, then got a gyroscope sensor problem, sent it to repair. The service centre in west field (London) wouldn't repair because of 0x1, I tried another (carphone warehouse, Samsung's authorized repair provider) with the same result. So I called this number UK - 0330 SAMSUNG (726 7864) on their UK web site. They arranged a service request and sent me an prepaid envelop to me (I didn't mention it's rooted or anything just pretend to be innocent). I got the envelop in couple of days and sent the phone to them (could be their head office service centre or something but I am not sure). They repaired it and sent it back. I checked the knox was still 0x1. Never mind if I can use it.
But in couple of days, my phone developed another problem, which was the wifi couldn't be turned on. So sent it to repair again. Got it last Friday and the problem solved. More interestingly, knox is 0x0! I checked IMEI, it's the same as before, except with IMEI SV 01 after the original IMEI. I am not sure it's the hardware replaced or a software update.

thotwielder said:
It's a long story. My note 3 was rooted and knox 0x1, then got a gyroscope sensor problem, sent it to repair. The service centre in west field (London) wouldn't repair because of 0x1, I tried another (carphone warehouse, Samsung's authorized repair provider) with the same result. So I called this number UK - 0330 SAMSUNG (726 7864) on their UK web site. They arranged a service request and sent me an prepaid envelop to me (I didn't mention it's rooted or anything just pretend to be innocent). I got the envelop in couple of days and sent the phone to them (could be their head office service centre or something but I am not sure). They repaired it and sent it back. I checked the knox was still 0x1. Never mind if I can use it.
But in couple of days, my phone developed another problem, which was the wifi couldn't be turned on. So sent it to repair again. Got it last Friday and the problem solved. More interestingly, knox is 0x0! I checked IMEI, it's the same as before, except with IMEI SV 01 after the original IMEI. I am not sure it's the hardware replaced or a software update.
Click to expand...
Click to collapse
this is normal.
Samsung got their own way to revert back the knox. Happened few times earlier to other users as well.
anyway knox is their creation, they sure have a way to deknox.
Sent from somewhere under the sky, at the corner of this rounded earth.

so samsung is lying to us that it cant be reset

Aimara said:
so samsung is lying to us that it cant be reset
Click to expand...
Click to collapse
They aren't lying. They can reset it, we can't
Sent from my SM-N9005 beast of a phone.

Something in the boatloader file .bl
When it was repaired was it out of the box firmware?

Okay then... If I'm right we CAN reset Knox Warranty Void back to 0x0. Just depents which version of Note 3 you are using. Didn't someone leak a file to reset Knox on some Exynos Note 3??

SAMSUNG has AUTHORITY
Samsung authorized service center can put back Original IMEI when they replace Mother board, New Mother Board will Replace 0x1 to 0x0.

Can't someone just come up with a way to feed false info to whatever part of the software that checks the efuse?
Essentially not really "resetting" knox but lying to it. Making it read "0" even though it's "1"
Or hell, likely even easier, making the display show "0" regardless of the info

jdomadia said:
Samsung authorized service center can put back Original IMEI when they replace Mother board, New Mother Board will Replace 0x1 to 0x0.
Click to expand...
Click to collapse
My thought exactly.
They changed a piece of hardware and the put the original IMEI bsck.
I think "Phone info" a market app (and I guess other too) can backup IMEIs.

I'm surprised environmentalist aren't on Samsung/Qualcomms ass for using eFuse, its honestly is a waste of resources!

My samsung S8 can't return Knox 0x0

It must be something in the bootloader because I was digging through the aboot.mbn on the SM-T350 stock firmware (with a hex editor) and found WARRANTY VOID: 0x%x (%d) If I change that to WARRANTY VOID: 0x0 (0) and flash it with Odin wouldn't it show 0x0 (0)?

Why not try?

It happens to me but in my case all sensors stopped working they changed my motherboard and my imei remain same

rudy2kx said:
Why not try?
Click to expand...
Click to collapse
I did and it Failed with Secure Check Fail: aboot

The closest we are right now is masking the value to 0x0 with MagiskHide, and then using the Edxposed module "Firefds kit" to get 'Official' system status, however; this only works in the system and it will still say 0x1 in download mode.
It is really hard to modify the bootloader to make it show 0x0 because if you try to flash a modified bootloader with Odin you will always get the error
"Secure Check Fail: aboot"
As far as actually resetting the eFUSE or in other words making the "real" value 0x0 (After already being tripped to 0x1) is impossible because it blows/trips a phisical fuse.
So, basically to reset the counter we have to somehow modify download mode to make it show 0x0 and then use MagiskHide and Firefds kit to get 0x0 (In the system) and Official system status.

Related

[Q] How to check if KNOX warranty voided

Hi,
I have a samsung S4 in Australia.
I have been having issues whenever I download or update any app on the phone through the google store. I have spoke to samsung and they are going to take my phone into get repaired. I have rooted my phone using SUPERSU. Did a factory reset once it started playing up.
My question is how do I tell if my phone is KNOW void. I have red allot of the forums and they all show you what your phone looks like when it is void. 0x1 and when it is not 0x0.
But my phone when I go into download mode does not even have the KNOX lines.
The lines are as below, there is no mention of KNOX.
------
ODIN MODE
PRODUCT : GT-19505
SYSTEM STATYS: Official
CSB-CONFIG-LSB: 0x30
WRITE PROTECTION: ENABLED
---
However there is a KNOX icon in my applications through the settings of my phone.
How do I check to see if they are going to return it and say I have jail breaked it. If it is not KNOX-VOID then what else do I have to do to ensure they cant tell.
Regards,
Hello,
Looking online for answers, I keep running into this thread. So I'll post here as well.
I have SGH-T999L [T-Mobile USA]
ODIN MODE
PRODUCT NAME: SGH-T999L
CUSTOM BINARY DOWNLOAD: NO
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
QUALCOMM SECUREBOOT: ENABLE
Warranty Bit: 0
BOOTLOADER RP SWREV: 1
Notice on this display I also lack the KNOX WARRANTY COUNTER: 0x0 or 0x1
I have Triangle Away and that shows Binary Counter = 0.
I also did a factory reset after rooting and everything is ok. I had issues once I rooted getting apps from Google Play. Simple reboot worked ok and phone has been stellar since. I just would like to know the full details of checking for a phone like the OP or mine.
I'll assume since mine has Warranty Bit = 0 I'm safe but confirmation would be nice.
Thank you,
Kent C.
lahhh said:
Hi,
I have a samsung S4 in Australia.
I have been having issues whenever I download or update any app on the phone through the google store. I have spoke to samsung and they are going to take my phone into get repaired. I have rooted my phone using SUPERSU. Did a factory reset once it started playing up.
My question is how do I tell if my phone is KNOW void. I have red allot of the forums and they all show you what your phone looks like when it is void. 0x1 and when it is not 0x0.
But my phone when I go into download mode does not even have the KNOX lines.
The lines are as below, there is no mention of KNOX.
------
ODIN MODE
PRODUCT : GT-19505
SYSTEM STATYS: Official
CSB-CONFIG-LSB: 0x30
WRITE PROTECTION: ENABLED
---
However there is a KNOX icon in my applications through the settings of my phone.
How do I check to see if they are going to return it and say I have jail breaked it. If it is not KNOX-VOID then what else do I have to do to ensure they cant tell.
Regards,
Click to expand...
Click to collapse
You can be relaxed. Your phone is using one old bootloader (android 4.2.2), this means KNOX free. You have full warranty . You have to know that are 2 types of KNOX:
1. Knox bootloader -> Appears in DOWNLOAD MODE (KNOX:0X0 or KNOX:0X1).
- 0x0: Full warranty
- 0x1: Void warranty
2. Knox app -> Appears close to ur apps. This is an application for protect the phone
---------- Post added at 01:05 AM ---------- Previous post was at 12:58 AM ----------
KentC. said:
Hello,
Looking online for answers, I keep running into this thread. So I'll post here as well.
I have SGH-T999L [T-Mobile USA]
ODIN MODE
PRODUCT NAME: SGH-T999L
CUSTOM BINARY DOWNLOAD: NO
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
QUALCOMM SECUREBOOT: ENABLE
Warranty Bit: 0
BOOTLOADER RP SWREV: 1
Notice on this display I also lack the KNOX WARRANTY COUNTER: 0x0 or 0x1
I have Triangle Away and that shows Binary Counter = 0.
I also did a factory reset after rooting and everything is ok. I had issues once I rooted getting apps from Google Play. Simple reboot worked ok and phone has been stellar since. I just would like to know the full details of checking for a phone like the OP or mine.
I'll assume since mine has Warranty Bit = 0 I'm safe but confirmation would be nice.
Thank you,
Kent C.
Click to expand...
Click to collapse
In your case you have different model of phone. But is more or less same:
- Warranty Bit: 0 -> Full warranty
- Warranty Bit: 1 -> Void warranty
Sir,
Thank you very much! Your input is appreciated, scary at this is, this maybe the first thread online with this simple layout of information.
V.4.3 - Rooted using MrW0lf Root Vid on Youtube [If anyone wants the easy free way with Windows 8]

[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!

[Q] Custom rom install history - Samsung Warranty Service - i9505

Hi.
I can't find answer to this. I know that triangle away delete the number of installed custom roms but does they have any way to check that i had custom roms? I know the issues with samsung and warranty policy so i want to be sure that i can fight back if they refuse to fix my phone because of knox. (overheating) If they do this, this will be my last samsung phone.
Triangle Away worked when all the S4 had was the flash counter, but it doesn't do anything when it comes to the Knox flag. Once the Knox flag is tripped by installing a custom recovery, it stays tripped. There is no way to reset it. So Samsung has an easy way to check.
If warranty is a concern, there are ways to root that do not trip the flag. However, you're stuck with Touchwiz.
Strephon Alkhalikoi said:
Triangle Away worked when all the S4 had was the flash counter, but it doesn't do anything when it comes to the Knox flag. Once the Knox flag is tripped by installing a custom recovery, it stays tripped. There is no way to reset it. So Samsung has an easy way to check.
If warranty is a concern, there are ways to root that do not trip the flag. However, you're stuck with Touchwiz.
Click to expand...
Click to collapse
Oh i know it (i used to change firmware on old sony ericsson phones). I can lie about the knox since some people get it changed by samsung tools, thats why im asking if they have any other way than knox, like under bootloader. My phone is overheating because of hardware problem, i want to be prepared for service reject (stories about rejecting repair of defective screen etc.).
They might not even check the flash counter. You can give it a shot. The worst that might happen is that they send it back (Unless they repair it without consulting with you and charge you for it).
My phone also gets pretty hot when playing games and the phone is charging at the same time. It burns my finger if I keep it in one place, literally.
I guess that's how they intended it to work..
@VanHelsing091: I misunderstood your question. Sorry about that. As GDReaper points out, they may not even check for a tripped Knox flag. If they don't, there's really no way we know of that they can tell if the device has had a custom ROM flashed.
@GDReaper
But mine is getting 50 degrees on main screen, watching photos etc. over 65 while doing anything else, over 70 while charge and using chrome even on locked cpu clocks under 1300mhz.
@Strephon Alkhalikoi
Thanks. If they refuse to repair my phone on warranty because of knox - that will be a lie (damaging phone by custom rom... sure, without touching OC in kernel tools), so i wanted to be sure if i can lie too about phone history, it happened before triggering knox anyway.
Im hoping for the best and good service, if not then i may start one of those big posts about company vs user. Thanks again.

N910F IMEI recovery

Hey, I just bought used Note4 N910F model for very cheap price - 230 euros. Phone used just about 5 month from buying, I have warranty paper to prove and IMEI on warranty paper is the same as on behind phone battery but... Seller told me, that warranty was voided because, he got some virus that blocked his phone, then he went to not authorized service and flashed ROM but IMEI changed.... and know KNOX settings not opening, on phone info from google play says Knox warranty void: 0x1. when trying OTA update I get error that phone was modified unauthorizaded way and cannot update. So is there any way to flash stock with original IMEI and I can get KNOX settings working and OTA updates :/ and noticed that TWRP recovery was installed... maybe some wipe could restore IMEI? and when booting I can see "set warranty bit: kernel" yellow sentence on top of screen
Knox will not work anymore, you can install stock firmware trough odin. Go to sammobile and flash latest stock
nemesis.sisemen said:
Knox will not work anymore, you can install stock firmware trough odin. Go to sammobile and flash latest stock
Click to expand...
Click to collapse
stock firmware should restore my IMEI or not very possible ? :/
Problably will

SM-J510FN/DS - Problem with Smart Switch; Official ROM; Samsung KNOX...

I have problem with Smart Switch. When I enter my device moder and S/N, it says: Please check the model name and S/N, and enter them again. Here is the screenshot: http://www.imagebam.com/image/5e9125560523373 (A is for letters and 0 is for numbers of S/N)
I dial *#06# so to get my S/N, I also removed battery and found the same S/N on the sticker with other device information, but still won't work.
Reason for doing this is that my warranty status is 0x1, so Samsung KNOX is not working. When I go to download mode, it says: "Warranty void: 0x1 (2)"
I flashed stock ROM trough ODIN, but every time it is the same, always 0x1, although it says that CURRENT BINARY & SYSTEM STATUS is Official.
Is there any way to reset it back to 0x0? I was searching a bit, some says it is not possible, some says to flash stock rom, some says to do it with TriangleAway app.
Tried those things, but not working at all.
I wonder if there's any way to fix this. I have been using this stock ROM from Sammobile: https://www.sammobile.com/firmwares/galaxy-j5-/SM-J510FN/BHT/download/J510FNXXU2AQD2/169886/
Try This
https://forum.xda-developers.com/an...ds-cse&usg=AFQjCNEoEgx4tIYdgGDu_gN1ZqoXkOdkbQ
nikos7hellas said:
https://forum.xda-developers.com/an...ds-cse&usg=AFQjCNEoEgx4tIYdgGDu_gN1ZqoXkOdkbQ
Click to expand...
Click to collapse
It says MOD EDIT: REMOVED, so...
no way to reset knox to 0x0 because it is e fused, which means once it is tripped (0x1) no way you gonna make it go back to 0x0. You can thank for this to samsung developers
Sorry
Ibroxx said:
It says MOD EDIT: REMOVED, so...
Click to expand...
Click to collapse
I dint see that...
Ok, I solved problem with Smart Switch, just connected device before, then went to Software Update and Initialization, so no need to do it with S/N.
I wish just there's way to fix this with KNOX..
Ibroxx said:
Ok, I solved problem with Smart Switch, just connected device before, then went to Software Update and Initialization, so no need to do it with S/N.
I wish just there's way to fix this with KNOX..
Click to expand...
Click to collapse
So, what's the conclusion? It can revert back to 0x0 or not?
mfmuam said:
So, what's the conclusion? It can revert back to 0x0 or not?
Click to expand...
Click to collapse
No, it is impossible...

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