Unlocking Samsung device - Android Q&A, Help & Troubleshooting

Hi,
I am in fatal situation, where I set temporarily random pattern for lock screen and now I cannot unlock the phone.
The device is Samsung Galaxy S5 Neo, with android 6.0. I cannot factory reset it at all cost.
I tried everything but I have found one solution that I am unable to test, because of errors. Here are my questions:
1. Can I unlock the phone using aromafm? I do not have custom recovery, so there is a message about unsigned zip. I even signed it using sign-app but there is another error about "whole file verification" or something similar and it doesn't start.
2. Can I install custom recovery without unlocking my phone? Do I have to root my phone? If yes, can I root it without unlocking?
3. Debug is disabled, but if I could enable it somehow, then it could work. Is there any method? Like bypass lock screen and turn it on, or anything else...
4. Unlocking phone is as simple as removing one file from the device (gestures.key). But I am unable to do it. Let's say I have access to the phone files, but I cannot delete this file, because of SecurityException. If I root my phone, will I magically gain the permission?
5. Samsung find device is sadly not configured. Can I configure it without unlocking the device?
Thank you for your support.
Regards.

Related

Any way to backup my data and reset or to bypass PIN lock?

Hello!
A friend of mine, who owns a Samsung Galaxy S6 Edge, set her lockscreen up to pin lock, but forgot the pin code. So she gave me her phone to find a solution to
1. backup the internal storage (photos) without unlocking it, so we can wipe it afterwards via its recovery menu
or
2. bypass the lockscreen?? losing her installed apps and stuff is not a problem. She just wants her photos to be save.
Samsungs "Find my phone" is not working because she did not activate the needed options.
Any help is aprecciated.
Vulnerability where Samsung phones respond to USB when locked.
Or forgot pin reset with Google option from Lockscreen.
help ...
i have same problem.. a week ago my s6 edge has updated to marshmallow.. then 2 days ago another update.. i use fingerprint for unlock.. but after last update it said "use password for fingerprint safety" and there is no option for google account.. i dont remember my password. my phone locked for 3 days and i cant find any solution for unlock.. i dont want to lose any data because of this safety policy
here you go flash this via TWRP AND REBOOT SURPRISE YOU BAYPASS LOCK SCREEN
scorpion112 said:
here you go flash this via TWRP AND REBOOT SURPRISE YOU BAYPASS LOCK SCREEN
Click to expand...
Click to collapse
thanks. my phone is s6 edge and hasnt sd card slot. so how can i download this file via TWRP to my phone?
can i download file with TWRP from my pc?
Download TWRP (3.0.0.x for 6.0.1 android) md5.tar extension and flash via Odin in AP section, make sure to turn off auto reboot, click start and should finish. Then hard turn off and turn on into recovery. You should be able to now use usb and transfer the .zip across to your device and install it, if not ADB push the file to storage

Developer Options, OEM Unlock and FAP Protection

Hi.
Before my question I'll write about my experience because I am sure it will help many many people.
As many of you, I always ROOT my smartphones.
Nowadays, the new phones, they come with this new technology to avoid root and other things called " OEM Lock " under the Developer's Options.
Following every step provided in the root guide for you phone, the new step to enable OEM Unlock under Developer Options
is a must!
The only thing that they don't say is that you MUST leave OEM Unlock ALWAYS ENABLED during and AFTER the root, and not only during the root
process.
Not knowing that, what did I do? Right After rooting my Samsung Note 5 I disabled the OEM Unlock. When I restarted the smartphone, it got into something called FAP Protection Black Screen where you are not able to leave not even if you try to root the phone again with the img file!
If you get in the FAP Protection Screen, like I did, despair will take over, I promise! And Google will not help you!
Is there a solution?
I found one, but not in any Google Page.
You need to download the firware img file for your phone, exactly same model,
in my case it was SM-N920G (Samsung Note 5), and for your specific country. Luckily for my phone it was not so hard to find, just hard to download (1,7GB with average 15 kB/s speed!). You will find different versions, some related to a Phone Company Operator that your country has, other related to no operator at all (sure I chose that).
After you get the firware file, just use Odin with that file to flash the phone, just like how you did to root the phone, but now, instead of using the root img file with Odin Software, you'll use the firmware file. That will not only solve the problem and give you access to your phone again, but in my case the Operator Flag disappeared and the data and apps installed miraculously were intact! I was pretty sure I was supposed to lose everything, but that didn't happen!
I'm sure what I wrote above will help many desperate people out there!
Now, my main question here:
You can never disable OEM Unlock in your life, with a rooted phone, period! So, it's really dangerous to leave the developer options enabled, allowing anyone that uses the phone to change it, even if by accident. In my case, as another example, besides rooting my phone, I rooted my father's phone too (because it was previously mine). I'd like to avoid by any means that by any chance me, or my father, disable to the OEM Unlock.
So, my question:
If I disable the Developer Option in order to "hide" it, will the changes that I did inside it remain working perfectly? I'm afraid that if I disable the developer options, somehow, it might take every option inside it back to the "default", just like it was before I enabled the developer Options, meaning in this case, OEM Unlock would get DISABLED again!
Is it safe to disable the Developer Options when OEM Unlock is Enable and MUST Remain like that?
Thank you.
Lost a night of sleep for the same problem with a Samsung S8.
This should be added to *every* mod guide.
In my case was worse too...if you root the phone and wipe data, when you open first time developer option you'll find "OEM Unlock" disabled (but I assume it's enabled at bootloader level). So when I check / uncheck it I doom my phone to lock on next restart...
how to get to boot menu on htc u12 plus, smallest width setting got adjusted wrong in developer options and power got cycled, all I can see on lock screen are 1,2 and 3 cant unlock, any ideas?

Forgot pattern and secure boot

Hello,
I am really dumb and changed my phone pattern yesterday for one that i found fancy on the moment trying out different pattern. Well i forgot it.
I have a One Plus 6t and it's stock rom and locked bootloader, it does have secure boot enabled and it's encrypted.
Is there a way to unlock the phone without wiping data ?
I have access to my computer, the phone have adb enabled and the computer is administrator for the phone.
I can't have access to anything because i did restart it and now it doesn't unlock since it's encrypted.
Anyone have been in the same situation and found a workarround ?
I have some really important data inside that phone that are stored nowhere else.
Thanks
Note:
Connecting to PC and launching adb, it seems like it does take the command, is there anything i can do from there ?
lot of permission denied and 'adb locksettings' doesn't work
If there was a way to access the data without the password/pin/pattern, that would defeat the whole purpose of secure bootloader and encryption.
So no, there is no known way of doing this.

Searching for Huawei P30 Lite MAR-LX1B unlock

Hello.
I'm searching a WORKING method to unlock the 'Huawei P30 Lite MAR-LX1B'.
Emergency-Call Code is not working anymore.
Emergency Backup function is not available at this Model.
Callback or Safemode exploit don't work, too.
ADB is turned off.
Tried very much methods that are on youtube, but i think these all are too old now, nothing is working.
How to bypass Google-Verify and install a custom ROM on this?
exploit_xy said:
How to bypass Google-Verify
Click to expand...
Click to collapse
You can do it by
either
fastboot - what requires device's bootloader gets unlocked before
or
avbctl - what requires ADB runs in root mode
Both scenarios are not given here.
NO ADB
NO ROOT
Just made a factory reset and then google want to ****s me up...
Just recovery and download mode possible.
I have no access to enable ADB or ROOT or whatever, because i haven't the Google account for that phone.
How does Huawei reset it? There must be a way to do it without the account.
Is it possible to generate the unlock code?
As I can see you're confusing things.
DM-VERITY / AVB protects phone's Android OS getting changed, not to get into phone's Android OS what FRP-lock ( which is tied to your Google account ) does.
AFAIK to programmatically remove a FRP-lock phone must be accessible via ADB and Andoid OS must got rooted.

Question Sm-t227u mdm lock/rooting help

Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
SM-T227U is an American model wich doesn't have the OEM unlocking option, you could unlock using unofficial ways but those are not pretty "stable".
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
evan5935 said:
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
Click to expand...
Click to collapse
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
If it has Mediatek chipset then you can use SP flash tool to format the tablet firmware and reflash it.
I would strongly recommend you to backup the NV DATA and NVRAM files before you format the tablet.
coocooguy246 said:
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
Click to expand...
Click to collapse
You can follow this guide actually! ( https://forum.xda-developers.com/t/...220-t225-install-lsposed-magisk-mods.4406933/) it recommends just skipping the setup junk
I have found that many times, rooting methods work across different models of the same device unless there are some sort of major differences in chipsets or some sort of random change lol
The only thing that doesn't seem to work for our model is section V of the guide which is for the removal of the "bootloader is unlocked" screen at startup. so you will still need to press the power button on that screen to boot up. It's a tiny hassle, but otherwise no big deal in my personal opinion
Make sure to read all the way to the end of the root section (section 4) and especially remember step 7. I retried probably 4 times and even patched the entire AP file of the firmware for use in odin (doing this gives a second warning on Knox screen that it isn't samsung official fw then boots normally into the bootlogo screen) before realizing everything was going fine.. I recommend just using the patched Magisk boot.img first just because I find it unsightly
Just flash the boot.tar in the AP slot. Don't download any of the boot imgs from the guide because they are for the t220's and t225's. I'll link the one I made according to the guide below. It'll save you some time and you won't need to install zarchiver and Magick just to have it factory reset again lol. Just download the latest Magisk apk (26.1) from the official github (https://github.com/topjohnwu/Magisk/releases) and install it when you have completed the 2nd factory reset/the patched boot img install.

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