Database Users

Problem web browsing using data (4G)

I bought my phone in Singapore but due to work commitments have to move to Taiwan. I have signed up a 4G plan here but since then I'm unable to surf using Chrome or Samsung's default browser.
Also, I can't check mail using the yahoo mail app (it just loads forever), play store is inaccessible too, but facebook works.
My note 3 is not rooted, everything is by default from the Singaporean telco (Starhub). My SIM is checked using a Taiwanese phone and everything works fine, so I'm suspecting incompatibility between the Singaporean phone settings and the Taiwanese 4G network.
Can someone help me? Since I'm no smartphone expert I don't know what info to provide, tell me and I will provide whatever that is needed. Thanks

rocker128 said:
I bought my phone in Singapore but due to work commitments have to move to Taiwan. I have signed up a 4G plan here but since then I'm unable to surf using Chrome or Samsung's default browser.
Also, I can't check mail using the yahoo mail app (it just loads forever), play store is inaccessible too, but facebook works.
My note 3 is not rooted, everything is by default from the Singaporean telco (Starhub). My SIM is checked using a Taiwanese phone and everything works fine, so I'm suspecting incompatibility between the Singaporean phone settings and the Taiwanese 4G network.
Can someone help me? Since I'm no smartphone expert I don't know what info to provide, tell me and I will provide whatever that is needed. Thanks
Click to expand...
Click to collapse
Check your APN and set it correctly to your Taiwanese 4G network carrier.
Settings -> Mobile Data -> Access Point Networks

nicholaschum said:
Check your APN and set it correctly to your Taiwanese 4G network carrier.
Settings -> Mobile Data -> Access Point Networks
Click to expand...
Click to collapse
The APN settings are ok. My settings are consistent with the phones at the carrier's shop as well as some other google resources.
I think now I have pinpoint the problem to incompatible modem. Mine is N9005DXUGNH1, but after checking my local friend's phone, hers is N900XXUDNC1. This prompts me to go flash a new modem.
But before I do that can someone tell me if my rom is KOT49H.N9005DXUGNH1, can I use the N900XXUDNC1 modem? I don wanna brick my phone...

rocker128 said:
I bought my phone in Singapore but due to work commitments have to move to Taiwan. I have signed up a 4G plan here but since then I'm unable to surf using Chrome or Samsung's default browser.
Also, I can't check mail using the yahoo mail app (it just loads forever), play store is inaccessible too, but facebook works.
My note 3 is not rooted, everything is by default from the Singaporean telco (Starhub). My SIM is checked using a Taiwanese phone and everything works fine, so I'm suspecting incompatibility between the Singaporean phone settings and the Taiwanese 4G network.
Can someone help me? Since I'm no smartphone expert I don't know what info to provide, tell me and I will provide whatever that is needed. Thanks
Click to expand...
Click to collapse
Since the facebook app works, the APN settings should be correct. And the data connection seem to be fine.
Are you sure that facebook app works? Please double check!

vndnguyen said:
Since the facebook app works, the APN settings should be correct. And the data connection seem to be fine.
Are you sure that facebook app works? Please double check!
Click to expand...
Click to collapse
Actually that is the only thing that work, as in I can update my feed and share pictures... I can't browse with google; can't run any games that needs to be online; can't check mail; can't youtube...

rocker128 said:
Actually that is the only thing that work, as in I can update my feed and share pictures... I can't browse with google; can't run any games that needs to be online; can't check mail; can't youtube...
Click to expand...
Click to collapse
Very strange. Are you sure that facebook app actually works and does not display the cache data?
Did you install any firewall app that may block the Internet connection?
Or did you use any permission manager app that may block the network permission?

vndnguyen said:
Very strange. Are you sure that facebook app actually works and does not display the cache data?
Did you install any firewall app that may block the Internet connection?
Or did you use any permission manager app that may block the network permission?
Click to expand...
Click to collapse
I don't think they are cache data as it refreshes and showed me updates on my feed, which is the same content when I use my PC.
I don't have any app installed that would restrict internet traffic...
I still think incompatibility modem is the culprit here... something about the Singaporean modem that does not go well with the Taiwanese 4G network. I hope I could just change the modem to one that works with the Taiwanese network. If not, worst comes to worst I will just root my phone and flash a custom rom

rocker128 said:
I don't think they are cache data as it refreshes and showed me updates on my feed, which is the same content when I use my PC.
I don't have any app installed that would restrict internet traffic...
I still think incompatibility modem is the culprit here... something about the Singaporean modem that does not go well with the Taiwanese 4G network. I hope I could just change the modem to one that works with the Taiwanese network. If not, worst comes to worst I will just root my phone and flash a custom rom
Click to expand...
Click to collapse
I don't think incompatibility modem is the culprit. As the facebook app works fine.
Now I have no idea...

vndnguyen said:
I don't think incompatibility modem is the culprit. As the facebook app works fine.
Now I have no idea...
Click to expand...
Click to collapse
Oh no... even a veteran is clueless... I'm screwed...
Let's just assume incompatible modem is the issue, can I flash the n900xxudnc1 modem to my n9005dxugnh1 rom? Or would you recommend me just flash a custom rom? (I'm actually prefer customs than my current stock as the stock rom is filled with bloatware. Hasn't use a custom rom yet on account of my warranty)

rocker128 said:
Oh no... even a veteran is clueless... I'm screwed...
Let's just assume incompatible modem is the issue, can I flash the n900xxudnc1 modem to my n9005dxugnh1 rom? Or would you recommend me just flash a custom rom? (I'm actually prefer customs than my current stock as the stock rom is filled with bloatware. Hasn't use a custom rom yet on account of my warranty)
Click to expand...
Click to collapse
I'm not sure, but let's clarify something:
- dxu is firmware for Singapore.
- xxu is international fimrware, that may cover many regions/countries.
- I personally think xxu modem is compatible with the dxu firmware. However the problem is that dxu version (gnh1) is newer than xxu version (dnc1). That may be the problem.
- So try to download newer firmware for xxu and flash.
- You can find appropriate firmware by installing Phone INFO ★Samsung★ app > Menu > 'Firmware Browser' > enter XXU in the CSC text box and tap Go button to search.

vndnguyen said:
I'm not sure, but let's clarify something:
- dxu is firmware for Singapore.
- xxu is international fimrware, that may cover many regions/countries.
- I personally think xxu modem is compatible with the dxu firmware. However the problem is that dxu version (gnh1) is newer than xxu version (dnc1). That may be the problem.
- So try to download newer firmware for xxu and flash.
- You can find appropriate firmware by installing Phone INFO ★Samsung★ app > Menu > 'Firmware Browser' > enter XXU in the CSC text box and tap Go button to search.
Click to expand...
Click to collapse
Ok, did that... may I know what the result mean?

Another question: Will flashing a new firmware from Sammobile tripped KNOX?

Nope, flashing stock firmware will not trip the Knox.
Sent from my Nexus 7 using Tapatalk

vndnguyen said:
Nope, flashing stock firmware will not trip the Knox.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
I have flashed the N9005XXUEND3 firmware, but the modem is missing... where can I find it?

rocker128 said:
I have flashed the N9005XXUEND3 firmware, but the modem is missing... where can I find it?
Click to expand...
Click to collapse
Try to reflash again to make the modem stick.
Or extract the modem.bin + NON-HLOS.bin and flash separately, followed the instruction below:
• Switch off your device completely.
• Connect to PC and power on your phone in Download Mode (Volume Down + Home + Power).
• Start Odin v3.09 (be sure it recognised your phone and show ID:COM port number).
• Untick Auto Reboot.
• Flash MODEM.BIN (CP slot - unzip it first).
• Reboot once again into Download Mode using Vol Down + Home + Power.
• Tick Auto Reboot and flash NON-HLOS.BIN.
• If this doesn't work, try repeating the flash process again while rebooting manually and with Auto Reboot option turned off.
If you have trouble getting the Modem to stick, install Triangle Away (by Chainfire) and follow the directions to reset your counter (even if it says zero), then boot into Download Mode, and re-flash them with Odin and they should stick.
Click to expand...
Click to collapse

vndnguyen said:
Try to reflash again to make the modem stick.
Or extract the modem.bin + NON-HLOS.bin and flash separately, followed the instruction below:
Click to expand...
Click to collapse
Got a question, doesn't flashing the firmware automatically flashes the modem into the phone as well?
I have tried the suggested method, but the modem just refused to stay in the phone. Now my phone can't receive any signal and reboots randomly...:crying:
If I have to root the phone just to get the modem working, think I might go for broke and flash a custom rom instead...

rocker128 said:
Got a question, doesn't flashing the firmware automatically flashes the modem into the phone as well?
I have tried the suggested method, but the modem just refused to stay in the phone. Now my phone can't receive any signal and reboots randomly...:crying:
If I have to root the phone just to get the modem working, think I might go for broke and flash a custom rom instead...
Click to expand...
Click to collapse
Typically yes, the modem is flashed together with the firmware. But sometimes it does not stick.
Did you follow exactly all steps and retry many times as suggested in the instruction?

vndnguyen said:
Typically yes, the modem is flashed together with the firmware. But sometimes it does not stick.
Did you follow exactly all steps and retry many times as suggested in the instruction?
Click to expand...
Click to collapse
I just reflashed my firmware. The modem is still missing...previously i tried the method about 5 times but still can't get it installed.
I'm gonna try reflashing once again before rooting.
Here's are the steps I took:
- Boot into recovery and wipe data/ cache
- Reboot in download mode
- Open Odin 3.09
- Uncheck auto reboot
- Connect phone to Odin, after which a blue "0:[COM4]" icon shows up
- Go to AP, select my firmware (which is about 2GB), wait for Odin to load
- After loading, press start to flash.
- After flashing completed, disconnect phone from Odin and reboot manually by pressing the lock button

rocker128 said:
I just reflashed my firmware. The modem is still missing...previously i tried the method about 5 times but still can't get it installed.
I'm gonna try reflashing once again before rooting.
Here's are the steps I took:
- Boot into recovery and wipe data/ cache
- Reboot in download mode
- Open Odin 3.09
- Uncheck auto reboot
- Connect phone to Odin, after which a blue "0:[COM4]" icon shows up
- Go to AP, select my firmware (which is about 2GB), wait for Odin to load
- After loading, press start to flash.
- After flashing completed, disconnect phone from Odin and reboot manually by pressing the lock button
Click to expand...
Click to collapse
Did you power it off completely and boot into download mode with the key combination (Vol Down + Home + Power)?
And did you use Triangle Away to reset the counter? as per instruction.

Ok. I'm officially in deep ****...
Good news is that I finally know why I can't flash modems into my phone. Bad news is because my IMEI number is screwed, and I did not make a back up of it.
Think I will be opening another thread for this issue... Thank you very much for your help all along vndnguyen.

New flashed rom has things I never had

Hi guys!
So I have a S7E 935F unlocked.
I tried to root the device and did everything as written and shown in every tutorial but it failed to do so.
After flashing recovery TWRP and trying to flash SuperSU the device just got into a boot loop.
I was reading around and understood that this is a problem due to encryption of the FS.
So I downloaded my firmware from sammobile and flashed my device again, everything got back to normal.
Well, almost normal. The rom I have has the same build number, version, kernel, everything is the same as the original one only that I have things in the settings menu I never has, like I have "apps" twice, one for apps permissions etc and one for apps manager, I also have "T roaming" no idea what it is, never had it, I have "service provider KT twophone".
Also the settings app crash a lot, browser gets stuck a lot, can't change system language to English (app crash).
At the home screen I Samsung Pay which I never had and I have some sort of a news app integrated on my home screen and it's marked with two stripes.
I verified this is a global rom for my country, not by any mobile company as before, I really don't have a clue what to do.
Can someone please advise?

T roaming and KT twophone service are both from korean carriers, maybe you have a wrong CSC installed or your /efs/imei/mps_code.dat is messed up.
Try to download and install the latest firmware of your region using Samfirm and if it still doesn't solve the problem, open up /efs/imei/mps_code.dat and see if matches your region name.

OK so I D/L the firmware again and same thing...
I checked /efs folder and its empty, maybe the content is hidden? Anyways my device has its IMEI and I can use it to make calls... thoughts?

roeio82 said:
OK so I D/L the firmware again and same thing...
I checked /efs folder and its empty, maybe the content is hidden? Anyways my device has its IMEI and I can use it to make calls... thoughts?
Click to expand...
Click to collapse
You need smart switch on your pc, enter your imei number in smart switch and it will download correct firmware according to your imei, then flash it. Good Luck
Sent from my SM-G935F using Tapatalk

Hi the same thing happend to me in settings but did downloading the firmware via smart switch change the settings and if so how do you do this

Tommmy5555 said:
Hi the same thing happend to me in settings but did downloading the firmware via smart switch change the settings and if so how do you do this
Click to expand...
Click to collapse
Hello, this smart switch method is obsolete. Use odin to re-flash your stock rom in case of any issues. Be sure to use correct and matching binary firmware.

Note 4 N910C Emergency Call only (Not Registered to Network) IMEICERT:PASS (IMEI Ok )

Greetings Folks
I have a N910C and as mentioned in title recently I got stuck in to this issue
How it happened
I had CF-Rooted my phone and Odin flashed TWRP for custom ROMS so I tried a few and was not getting the perfomance thought SimplROM would do it for me in order to install that ROM it said in instructions to install latest Modem and Bootloader
So i tried downloading the ones given in v6C BL was downloaded but CP kept on giving me errors getting stuck at 7% on mega so being stupid I downloaded DPCB(MODEM) While ROM was offering DPK4
So everything went fine until after boot I realized am facing Not Registered to Network
Since I had experienced this before on other phone I went ASAP in dialer to check my IMEI & SN both are still intact
I knew about EFS unfortunately I backed it up on Phone Storage which was wiped for ROM and I forgot (So dont have EFS Backup )
I do recall years ago back when I had S3 I experienced this and sometimes flashing different firmware(CSC ,Modem) fixed it
What I have tried so far
I have already tried several stock ROMs most of em had DPI1 Baseband except 2 other ROMS no luck
tried combination file method too (the one that helps downgrade to kitkat i believe ) no luck
Tried XEO repair Firmware no luck
any suggestions ??
and on that contrary now that I am not on stock is there any way to find out which CSC and Stock ROM this phone originally was one or came with with IMEI or Serial I believe ?
Thanks in Advance

Anyone??

under the battery there's the serial number
install on your pc samsung smart switch program
run it with option of emergency software recovery - device initialisation
input the model of your phone
input the serial number
start
have patience and a good connection
your phone will (eventually) get the latest official firmware
https://www.blogtechtips.com/2017/06/24/easily-restore-samsung-device-firmware-with-smart-switch/
at least you'll have a working phone with stock rom
from here on you can try again and get informed better on what to do
good luck

w41ru5 said:
under the battery there's the serial number
install on your pc samsung smart switch program
run it with option of emergency software recovery - device initialisation
input the model of your phone
input the serial number
start
have patience and a good connection
your phone will (eventually) get the latest official firmware
https://www.blogtechtips.com/2017/06/24/easily-restore-samsung-device-firmware-with-smart-switch/
at least you'll have a working phone with stock rom
from here on you can try again and get informed better on what to do
good luck
Click to expand...
Click to collapse
Hey there bud I have almost tried most of fixes I could I'll give Smart Switch a try as I recall I checked before it didn't have initialization just the recovery mode, while in Kies 3 I did try initialization method by model and SN but it prompted device doesn't support initialization
Anyways do you think it could fix network?
Sent from my Pixel 2 XL using Tapatalk

crossmedia said:
Hey there bud I have almost tried most of fixes I could I'll give Smart Switch a try as I recall I checked before it didn't have initialization just the recovery mode, while in Kies 3 I did try initialization method by model and SN but it prompted device doesn't support initialization
Anyways do you think it could fix network?
Click to expand...
Click to collapse
Maybe restore the efs from recovery, if you have a backup that was working.

w41ru5 said:
Maybe restore the efs from recovery, if you have a backup that was working.
Click to expand...
Click to collapse
Jist checked not getting initialization option on smart switch ill see a work around it if its a version thing , as for working backup I lost it mate it was in twrp folder in phone storage it got wiped recovery softwares out there only help recovering media mostly if mass storage mount was option could have tried recovering for PC but that has been long gone since ICS
Sent from my Pixel 2 XL using Tapatalk

Yep. Same problem as mine. Im kinda lost now since i dont have anything; even in stock rom it cannot go beyond connecting to my carrier. It only able to read my contact.
Im guessing its a motherboard problem? Isnt it @w41ru5?

VannM said:
Yep. Same problem as mine. Im kinda lost now since i dont have anything; even in stock rom it cannot go beyond connecting to my carrier. It only able to read my contact.
Im guessing its a motherboard problem? Isnt it @w41ru5?
Click to expand...
Click to collapse
I don't know. Usually it's a modem issue when not recognizing the sim.
If it's a 910F snapdragon it might be the infamous eMMC issue.
If you have an EFS backup try to restore it from recovery TWRP.

Assuming its modem problem, its related to motherboard i guess, right?
Finally got the phone working, only to discovered that SIM not working. Really wasting my time and hype!
Plus, its hard to search for n910c replacement board here.

VannM said:
Assuming its modem problem, its related to motherboard i guess, right?
Finally got the phone working, only to discovered that SIM not working. Really wasting my time and hype!
Plus, its hard to search for n910c replacement board here.
Click to expand...
Click to collapse
The firmware, not the physical one.
Did you try to flash the 4 files repair firmware?
This is an example, I don't know what phone you have
https://firmware.gem-flash.com/index.php?a=downloads&b=folder&id=7081
Did you try the SmartSwitch pc program?

"...4 file repair..."- what? Ive google it until im almost run out of data here and you have a possible solution? You must be active in note4 forum.
One thing i noticed that, the IMEI and Serial Number are different from the sticker included.
I will try it, but not immediately; waiting for thurday-friday for data renewal.
My phone is n910c
EDIT : just checked the page you gave. I have few question;
What should i do with the files? What are the step? What are the program needed?
Is it related to SmartSwitch as you mention; need to use it?
Thanks!

VannM said:
"...4 file repair..."- what? Ive google it until im almost run out of data here and you have a possible solution? You must be active in note4 forum.
One thing i noticed that, the IMEI and Serial Number are different from the sticker included.
I will try it, but not immediately; waiting for thurday-friday for data renewal.
My phone is n910c
EDIT : just checked the page you gave. I have few question;
What should i do with the files? What are the step? What are the program needed?
Is it related to SmartSwitch as you mention; need to use it?
Thanks!
Click to expand...
Click to collapse
1. It's good you still have the IMEI. Not so important if they're different from the sticker. Where did you buy the phone from?
2. So if you go to check the 4 files repair, you need to search on that site the files for a 910C.
3. Did the phone worked on your country provider? If yes, maybe you need to search for the 4files corresponding to your region code.
4. These 4files have to be flashed with Odin
https://zfirmware.com/download-samsung-repair-firmwares/
5. SmartSwitch is an alternative to get the latest firmware for your phone according with the model and serial number.
https://www.sammobile.com/forum/threads/29914-SmartSwitch-Install-amp-update-or-replace-firmware

the "firmware.gem" are useless. the error says i need another package (i assume a quota) to download the needed files.
im currently testing "zfirmware", but have a doubt since it only give 1 type file (which country is it i dunno). but yeah, since my phone like that, it wouldnt hurt to try
EDIT : yep, nothing changed. the device not even bricked.

VannM said:
the "firmware.gem" are useless. the error says i need another package (i assume a quota) to download the needed files.
im currently testing "zfirmware", but have a doubt since it only give 1 type file (which country is it i dunno). but yeah, since my phone like that, it wouldnt hurt to try
EDIT : yep, nothing changed. the device not even bricked.
Click to expand...
Click to collapse
If something does not work, why do you give up so easy?
http://www.mediafire.com/file/a2fdo0xm9nat5jt/N910CXXS2DPJ3_N910CZTO2DPE2_ZTO.zip - this is marshmallow
https://androidfilehost.com/?fid=24269982087001472 - this is for lolipop
Put the phone in download mode, open Odin and try.
And try the smartswitch also.

w41ru5 said:
If something does not work, why do you give up so easy?
Click to expand...
Click to collapse
That hurts. A lot. Explanation below.
w41ru5 said:
http://www.mediafire.com/file/a2fdo0xm9nat5jt/N910CXXS2DPJ3_N910CZTO2DPE2_ZTO.zip - this is marshmallow
https://androidfilehost.com/?fid=24269982087001472 - this is for lolipop
Put the phone in download mode, open Odin and try.
And try the smartswitch also.
Click to expand...
Click to collapse
I tried files from LP and MM. It didnt work. And also smartswitch.
I was hoping that it will brick the phone (if i ever missed a step or incorrect file) but it didnt.
Might as well try looking for replacement board (or even a refurbished note4).
Thanks though for the suggestion @w41ru5!

Greetings again folks reading your replies above I have been trying almost every fix there is out there
First of all about Emergency Calls Only/Not Registered on Network
It can be due to several causes its can be Hardware ie faulty modem
it can be bad network coverage
it can be bad simcard
it can be SW with EFS problems or maybe even on rare occasion a modem file that you flashed
EFS can be either bad IMEI with CERT : FAIL or Just Network with IMEI and SN intact
just dial *#0011*# and see if you have CERT : PASS ( also someone with good IMEI/CERT and working network can share screenshot so i can compare whats wrong)
I am certain mine is EFS related because it happened after flashing modem DPCB modem via ODIN (I had TWRP EFS backup but the blunder I made was backing it up on phone storage and being careless forgot it was there and was wiped for custom ROM flashing process)
So far what I have tried
Combination File Method (and even downgrade to KK 4.4.4 )
Repair Firmware that include AP,BL,CP,CSC and even PIT
Kies 3 or Older Smart Switch says (Device doesn't support initialization ) since initialization feature was removed by Samsung on newer Smartswitch(since it was being used for wrong reasons? read somewhere)
Several different firmware's
OTA update
My IMEI CERT says PASS if only we had a network patch like Ariza Patch (for Galaxy S3) for Note 4 then we would be in luck so far at this point I dont think flashing ROM's would even help with bad EFS our only luck is Box e.g Z3x or Octo dont know if we are allowed to talk about those here (ill edit post if not)
these box applications have Network Patch for most Samsung models but I don't see one for N910C in most versions
for those with bad IMEI they can try writing good cert or efs on note 4 since they have already lost it I am sitting on it because my EFS is good on that part and for some reason box app isnt allowing me to back up my CERT if I am able to back up current cert then ill give those a try but I would prefer current IMEI since in my country IMEI should be verified to use the phone or you have to pay tax
I know its Bad EFS for sure because using Box application I chose reset EFS(after backing up current faulty EFS with good IMEI) upon reboot phone's imei was changed with no SN network came back for few seconds then gone again ,this happened to many users that have tried resetting EFS so I restored my original EFS
if anyone here with N910C and root can give me EFS folder I can corelate if any file required for network is missing since i have good IMEI
Cheers!

Blocked Bootloader

Hi I am new to this but i have a samsung Tab A 10.1 SM-T595 from my university and it is locked with their knox cloud service so i have tried to restore OS with Odin and now i cant login or anything to their knox nor get android so i wanted help getting android to my tab without access to any settings is there any way? the Bootloader is locked aswell so i cannot use them i was searching for a workaround so i need help. i have maximum access to the connect to wifi screen before knox takes over and i lose previlges to anything cuz everything is blocked by their service

Deleted

JJcoder said:
Did you trip Knox?? If you did none of the knox features will work anymore.
Click to expand...
Click to collapse
i dont know if i have tripped it im just stuck in the initial setup screen and cant do anything from there on

Deleted

reply
Hi im rlly sorry for the late reply but i reset the os bcuz i rlly had nothing to do in the previous version which was basically locked to a few apps that they control and I cannot access anything from it and i did it cuz one of my pals did the same and worked for him https://500px.com/photo/1018025656/IMG2020070120281001-by-Spin-Gaming/ this is the screen that shows up after wifi and then itll take you to the know login page with the id and password i just blurred out the university name

Deleted

we have followed the exact same steps whereas he was able to access all settings in the setup screen and i wasnt and also what is a combination firmware and what all can i do with it also if you can find a u4 file can u send a link over will be very much helpful thank you

Deleted

its Fine no worries
Through the combination firmware i have unlocked the bootloader but if i flash the samsung os i still get the enrollment page so i was wondering if there is any other way and i am not able to flash twrp for some reason as it switches into a diff page and i dont know if there are any cutsom os for the tablet .i wont be using cellular anyways so if there is a custom os that works i can try

what he did was take a tablet owned/provided by his school who have a mdm service on it that is set to lock the device if it is wiped specicically to prevent ppl from modifying it or stealing it.
its basically an mdm lock.. you need to contact the school and ask them to remove the mdm lock. any time you connect to data which is required when mdm locked it will lock or set up the mdm again.
you cant get rid of it by simply flashing firmware...

Deleted

JJcoder said:
Are you sure there is no way to bypass it?
Click to expand...
Click to collapse
oh there is but not gonna get it out of me.. im against it as it is unethical (borderline stealing)..
they put mdm on devices for a reason.. to top it off its supposed to be used for his education.. hopefully it wasnt bought with taxpayers money..
basically its tied to the imei/serial.. when it was first installed it sets flags on the device so depending on what they set up it can block factory reset, block ota upgrades including in download mode etc.
when it starts up it sees that it is tied to an mdm via the flags and requests internet connection to move forward at which it updates with tbe server and loads any policies or w.e back to the device

Deleted

JJcoder said:
Okay, so I found out how to bypass it
1. You need to get the PIT file for your device. I found this guide on how to get it: https://www.getdroidtips.com/how-to-extract-pit-files-for-any-samsung-galaxy-device/
2. Once you have the PIT file boot your device into Download mode and connect it to your computer.
3. Load the stock firmware into Odin (BL, AP, CP, CSC OR if your firmware is just one file then load that file)
4. Then load the PIT file into Odin.
5. Go to the Options tab on Odin and make it look like this:
6. Go back to Log and click on Start
7. Wait for the firmware to flash and for your device to boot up.
8. Once it's done the enrollment page will be gone
If you have any problems or questions please let me know
Click to expand...
Click to collapse
the pit file is in the firmware files lol every firmware has the pit file.. u just extract it..
and thats not permanent.. soon as it phones home itll register the mdm again..

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JJcoder said:
I know but that's if you have the CSC file, if your firmware is just one file then it's not there.
Also, are you sure? The Nand Erase Option will Erase everything and reconstruct the EFS along with all other Partitions removing the MDM lock.
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well yea, i meant regular 4 file firmware (or 5) ap bl cp csc home csc and userdata..
and yes.. they use your imei and/or sn which is enrolled in their portal/server so eventually they can send policy over the internet..
you can even get a trial and check it out urself.. type in knox manage or knox suite or knox configure etc.

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JJcoder said:
But it still works, right? If it doesn't work, how is it even possible to bypass then? Wouldn't you have to change your IMEI and/or SN?
Edit: I also found this: https://www.isla7.net/how-to-remove-knox-mdm-on-samsung-devices/
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u ask a question about everything ? unfortunately i dont have time to reply constantly.. i suggest continue browsin around n readin.. its how i learned stuff

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elliwigy said:
oh there is but not gonna get it out of me.. im against it as it is unethical (borderline stealing)..
they put mdm on devices for a reason.. to top it off its supposed to be used for his education.. hopefully it wasnt bought with taxpayers money..
basically its tied to the imei/serial.. when it was first installed it sets flags on the device so depending on what they set up it can block factory reset, block ota upgrades including in download mode etc.
when it starts up it sees that it is tied to an mdm via the flags and requests internet connection to move forward at which it updates with tbe server and loads any policies or w.e back to the device
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Click to collapse
Nope it isnt tax payers money it is my own and also due to the quarantine i havent found a use for it as neither the school updates it or neither am i able to do anything so yeah its just sitting there like some junk so yeah

[Guide] How to change CSC on A51

Warning: Do this at your own risk, I am not responsible for any damage that is caused to your device. This method worked for me and should work for everyone.
Credit to yakapa40 on XDA for the apk. This would be impossible without him!
You must make sure the model numbers are the same for the country you want to change to. To check that go to
https://www.sammobile.com/firmwares/recent/
and type in your device model number. leave country code blank. The countries that are listed are those that will work on your specific device. DO NOT TRY TO CHANGE TO A DIFFERENT MODEL NUMBER COUNTRY!
MAKE sure device has above 70% battery just to be safe
OK lets start!
Backup all your data on samsung cloud and google
This will **erase** all your data
Download samsung drivers
https://www.hardreset.info/download/samsung-drivers/
Check the CSC code you want from
https://forum.xda-developers.com/showthread.php?t=2546689 credit to Jasi2169
Important later
download the firmware you want from sammobile (slow download speed) or
https://samfw.com/ for faster download speeds.
It will be a zip file so use winrar to extract and you should get 5 files that start with
AP (System &Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC\_ (Country / Region / Operator)
HOME\_CSC (Country / Region / Operator)
DELETE the home file
Next download Odin
https://dl2018.sammobile.com/Odin3-v3.14.4.zip
Extract the Odin file and run as administrator
Add each file to its respective field in Odin
Now we need to put the phone in download mode to do that go to:
https://www.hardreset.info/devices/samsung/samsung-galaxy-a51/download-mode/
keep trying until it works.
Next plug the device in and press start. It should take about 3-4 mins for odin to say PASS
DO NOT UNPLUG THE PHONE AT ANY POINT EVEN AFTER ODIN SAYS PASS
Let the phone do its thing and dont worry if it takes too long on the Samsung screen.
You should then be greeted with the welcome screen BUT it may not be the correct language so set it to English (I flashed UK firmware and it came in Russian)
Set the phone up but dont worry about apps we are going to reset the phone again
Head over to (APK provided by yakapa40)
https://drive.google.com/file/d/1hU3vl_V7NsRgI_RsQywytORoB8isJ1ni/view?usp=sharing
on your device or PC and download it. Extract and it should be a apk file. Download it with your device.
Allow unknown sources and it should says done and not open (that is normal)
put you device in flight mode/airplane mode
hold down the home screen and go to themes
Galaxy themes
My stuff
Select mysterious theme(make sure not to click update)
Select try it out
Go to Settings
About phone
Legal information
Change Carrier or whatever third option is (the one that says android 10)
Choose and install the CSC you want (that 3 letter code) remove sim and it will restart phone
again, dont worry if its on the Samsung screen for too long.
You should be back on the welcome screen and you are done!!!
Set up the phone and enjoy!!!
Credit to yakapa40 again on XDA for the apk. This would be impossible without him!

Does it work to enable the NFC on the latam version?

holach said:
Does it work to enable the NFC on the latam version?
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if the phone has nfc then it will work. NFC is hardware not software.

this method void warranty? ¡Saludos!

carloselvirus said:
this method void warranty? ¡Saludos!
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Click to collapse
no

thanks! i did it and it worked great

If i flash a firmware my brightness problem will go away?

GeorgeEdwardoo said:
If i flash a firmware my brightness problem will go away?
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Click to collapse
If your actual screen is faulty then it wont work but no harm in trying since warranty is not voided

hey, my galaxy theme has not try out option in airplane mode ,, it says check network connection (it has only two button check connection and try again , no try out)... what should I do?

I already installed the mysterious theme and select "try it out", I went to "settings", About phone and in "Legal Information", the option "Change Carrier" does not appear, what could be the problem?
The software version says it is October 1, 2020. Thanks!

danao78 said:
I already installed the mysterious theme and select "try it out", I went to "settings", About phone and in "Legal Information", the option "Change Carrier" does not appear, what could be the problem?
The software version says it is October 1, 2020. Thanks!
Click to expand...
Click to collapse
Just got a new phone with the same software version and the same problem. Did you ever come up with a solution?
Thanks.
Edit: actually this is closer to my problem.
armanate said:
hey, my galaxy theme has not try out option in airplane mode ,, it says check network connection (it has only two button check connection and try again , no try out)... what should I do?
Click to expand...
Click to collapse

oldnoob said:
Just got a new phone with the same software version and the same problem. Did you ever come up with a solution?
Thanks.
Edit: actually this is closer to my problem.
Click to expand...
Click to collapse
Can anybody share the app the link is no working no more

Hi, I changed csc on my A51 in order to enable native call recording feature ( Italian stock firmware and Vietnam XXV CSC ) but after last OTA update ( build a515fxxu5eug5 ) google pay stopped working due to "unsafe firmware", as it was rooted.
Which is your advice ?

andr123a said:
Hi, I changed csc on my A51 in order to enable native call recording feature ( Italian stock firmware and Vietnam XXV CSC ) but after last OTA update ( build a515fxxu5eug5 ) google pay stopped working due to "unsafe firmware", as it was rooted.
Which is your advice ?
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Click to collapse
interesting.. is that means if you skip OTA everything will works ? is your phone boatload unlocked ?

bizkit_120 said:
interesting.. is that means if you skip OTA everything will works ? is your phone boatload unlocked ?
Click to expand...
Click to collapse
No. I think there was some problem with THAT update....because after further updates it started working again...
(Stock Bootloader)

Sounds like very thing works fine now on your phone? How s that call recording func ,works as expected with Bluetooth headphones connected as well ? What about caller id ,assume since region has changed It won't gonna detect correct local numbers,am I right? Thanks for sharing!

Nono, everything about calls (and recording) works perfectly, with headphones, too