Hi,
My friends Samsung nexus s is stuck on the X screen. since the phone is on stock rom and no recovery installed and he doesnt want to root his phone and wants all his previous data back, what should i do to get back in orignal state without loosing data?
Well, if you unlock the booloader, then his data is gonna be lost anyways because unlocking the bootloader will factory reset the phone. The only way to get his phone working again is to unlock bootloader, and flash the firmware images, or a custom rom through recovery. Your friend is going to have to accept the change on his phone and data lost. Sorry, but I can't think of no other way to restore it WITHOUT losing data.
Does android/S7 have anything equivalent to apples find my phone which effectively turns it into a brick when stolen? If so, how?
In the Google app settings there is a phone finding service you can activate, and some CSCs have "Find my mobile" which allows you to remote wipe / brick etc
but does this stop the device from being wiped if stolen and activating like apples activation lock does?
lofty5 said:
but does this stop the device from being wiped if stolen and activating like apples activation lock does?
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Yes, provided you keep the bootloader locked.
EDIT: Technical term is FRP(Factory reset protection), and it's tied to the Google account used to set up the device
This is what i was thinking, that the boot loader has to be locked in order to do this. would keeping the phone rooted be an option or make it insecure?
Could i do this on a region that isn't my csc without bricking the phone? I'm pretty sure that as long as the source files are stock samsung any region should work. Can download mode be protected?
I'm currently backing up my device after which i am enabling all the security options and am going to try to hack into the phone to see if its worth doing or not. If it can be broken easily id rather keep it unprotected for convenience, but if i can protect the phone I'd rather do this as i lost my phone a couple of years ago and there was no protection on it at all nor on the sd card, which sucked.
bump
Root almost always requires a modified boot image which will immediately be blocked by a relocked bootloader. So root and FRP cannot coexist as they counteract each other. FRP itself is not CSC locked, only the remote control features. There are ways around it but they are mostly only present in older firmware, which is blocked by bootloader downgrade fuses. So yeah, pretty unbreakable if the device remains full Knox stock.
Hint: anything confidential should never be stored on the external card, or should be encrypted if it is (eg. Turn on encryption in titanium backup). Internal memory is always encrypted on stock firmware.
Edit: Download would work as usual. So basically what would happen is if a malicious firmware was flashed the bootloader will block it at boot and trip the Knox fuse, essentially burning all data on the device. If the crooks are smart they can still make use of the device, but most aren't so you should be safe
I'm using Cerberus, it can disable the shutdown/reboot menu on the lockscreen.
CurtisMJ said:
Root almost always requires a modified boot image which will immediately be blocked by a relocked bootloader. So root and FRP cannot coexist as they counteract each other. FRP itself is not CSC locked, only the remote control features. There are ways around it but they are mostly only present in older firmware, which is blocked by bootloader downgrade fuses. So yeah, pretty unbreakable if the device remains full Knox stock.
Hint: anything confidential should never be stored on the external card, or should be encrypted if it is (eg. Turn on encryption in titanium backup). Internal memory is always encrypted on stock firmware.
Edit: Download would work as usual. So basically what would happen is if a malicious firmware was flashed the bootloader will block it at boot and trip the Knox fuse, essentially burning all data on the device. If the crooks are smart they can still make use of the device, but most aren't so you should be safe
Click to expand...
Click to collapse
I had it rooted last night with magisk and boot loader locked, however it did refuse to boot due to modification and frp locked after a factory reset, but worked fine prior to this.
is it not worth doing if not fully knox stock?
I only really use root these days for titanium backup and perhaps ad blocking.
How difficult is it for a hacker to get back into the phone, I mean iPhones are practically impossible to get back into if on the latest firmware.
Blacky25 said:
I'm using Cerberus, it can disable the shutdown/reboot menu on the lockscreen.
Click to expand...
Click to collapse
is your boot loader locked and rooted?
lofty5 said:
is your boot loader locked and rooted?
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Click to collapse
Yes it is, I know it is also possible to delete everything but when I really loose my phone I will hope that people without the knowledge find my phone.
lofty5 said:
I had it rooted last night with magisk and boot loader locked, however it did refuse to boot due to modification and frp locked after a factory reset, but worked fine prior to this.
is it not worth doing if not fully knox stock?
I only really use root these days for titanium backup and perhaps ad blocking.
How difficult is it for a hacker to get back into the phone, I mean iPhones are practically impossible to get back into if on the latest firmware.
Click to expand...
Click to collapse
About as difficult as an iPhone to crack provided it's on latest firmware with a locked bootloader, even preventing reuse. FRP remains fully operational irregardless of Knox warranty status. It's possible to keep encryption while rooting (though this depends on strictly "close to stock" firmware, specifically by using a stock kernel binary. Ramdisk mods like Magisk or SuperSU are fine) to retain the data protection so thieves wont be able to deduce anything about you, but as long as the bootloader is unlocked a thief could always just wipe and reuse the device.
CurtisMJ said:
About as difficult as an iPhone to crack provided it's on latest firmware with a locked bootloader, even preventing reuse. FRP remains fully operational irregardless of Knox warranty status. It's possible to keep encryption while rooting (though this depends on strictly "close to stock" firmware, specifically by using a stock kernel binary. Ramdisk mods like Magisk or SuperSU are fine) to retain the data protection so thieves wont be able to deduce anything about you, but as long as the bootloader is unlocked a thief could always just wipe and reuse the device.
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Click to collapse
I am now back to full stock with no root. It’s not the same now as when i first started rooting back on the arc s, back then you could literally do nothing without it, things so basic such as a firewall. I only at this minute have one issue.
How in god’s name do you do a full backup of apps WITH data. I have helium but it refuses to backup most of them, it’s not a big deal now as i have re-setup the programs it wasn't compatible with. However, it would be handy to know for future reference, is there anything that can do a full backup with app data that doesn’t require root? If not, never mind I guess.
lofty5 said:
How in god’s name do you do a full backup of apps WITH data. I have helium but it refuses to backup most of them, it’s not a big deal now as i have re-setup the programs it wasn't compatible with. However, it would be handy to know for future reference, is there anything that can do a full backup with app data that doesn’t require root? If not, never mind I guess.
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Click to collapse
Not quite sure as I've always been rooted. Kies or Google Cloud Sync might be sufficient?
CurtisMJ said:
Not quite sure as I've always been rooted. Kies or Google Cloud Sync might be sufficient?
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Click to collapse
is the latest s7 fw protected against this attack?
https://forum.xda-developers.com/sa...galaxy-on5-metropcs-sm-g550t1-t3439557/page13
and root junkies hack?
lofty5 said:
is the latest s7 fw protected against this attack?
https://forum.xda-developers.com/sa...galaxy-on5-metropcs-sm-g550t1-t3439557/page13
and root junkies hack?
Click to expand...
Click to collapse
Only one way to find out An easy way to test would be to see if the phone responds to the USB command to dial the number, so no need to reset to check.
Brief about phone
I need to open this phone without losing data. This is PIN locked phone[Deceased Person's Phone]
Developer Mode Disabled
Any way to unlock it.
Via
ADB
I need how to root it and remove its pin number any how.
While rooting there should not contain any risk that involves data wipe.
New update
I cant flash twrp via odin
Custom Binary block by FRP lock
Question: If i flash orginal stock rom would it delete all the files and setting stored in phone
There should not be any data loss coz it needs to open phone of deceased person.
Did you unlock the phone?
I am in a similar position with my samsung J700F.
Did you find any success mate?
cruelgrimz said:
Brief about phone
I need to open this phone without losing data. This is PIN locked phone[Deceased Person's Phone]
Developer Mode Disabled
Any way to unlock it.
Via
ADB
I need how to root it and remove its pin number any how.
While rooting there should not contain any risk that involves data wipe.
New update
I cant flash twrp via odin
Custom Binary block by FRP lock
Question: If i flash orginal stock rom would it delete all the files and setting stored in phone
There should not be any data loss coz it needs to open phone of deceased person.
Click to expand...
Click to collapse
Hi,
I have a few questions about the FRP lock and the OEM lock on the Galaxy s6 running Nougat. I hope someone can help as I've not been able to find answers to questions this specific.
Ok, so, my first question is does the Galaxy s6 even have an OEM unlock option? If so, is it enabled by default?
Quick story before the other questions. I flashed TWRP and the sorts onto my s6 but decided to go back to stock and so flashed the stock firmware from sammobile through odin mode. After doing so I assumed the stock recovery would be restored and the phone would be as good as new right? As in all the FRP and OEM lock security features would be restored?
However, I did some research and found out that you can flash the stock firmware AGAIN as long as the firmware was signed by samsung even if OEM unlock is not checked.
My last question would be if someone was to use odin mode to flash the stock firmware, which is freely available, would the phone not ask for the previous Google account which was signed in on the device?
Hope is wasn't too hard to understand, I'm typing on my old S3 mini as I lost my s6 which is the reason I can't go and test this myself.
Thanks in advance
- There's no OEM lock on S6 (at least on international models). So, there is no OEM unlock option.
- If the bootable images (kernel and recovery) on your phone is Samsung signed, you can use FRP.
- If you want to revert the device to completely stock, I recommed that you should install a 4-part firmware.
- If FRP lock is not enabled on your device, phone won't ask anything about Google account (or Samsung account).
forumber2 said:
- There's no OEM lock on S6 (at least on international models). So, there is no OEM unlock option.
- If the bootable images (kernel and recovery) on your phone is Samsung signed, you can use FRP.
- If you want to revert the device to completely stock, I recommed that you should install a 4-part firmware.
- If FRP lock is not enabled on your device, phone won't ask anything about Google account (or Samsung account).
Click to expand...
Click to collapse
Hi,
Thanks for the informative reply. I have just one more question.
If I had enabled FRP through the Samsung Pass settings with my Samsung account and then I was to flash stock firmware on to the phone, would the Samsung FRP lock prevent the user from using the device by asking for the email and password or would the new firmware get rid of any of the security measures put in place?
I understand the FRP lock files are stored on a hidden partition not wipeable through the stock recovery however considering signed firmwares are freely available it would seem to me that the FRP lock would be deemed useless if anyone could just do that.
I guess my final question would be do signed firmwares downloaded online and flashed over the existing firmware wipe the FRP lock partition of the phone?
Thanks again for your reply
Haroon786 said:
Hi,
Thanks for the informative reply. I have just one more question.
If I had enabled FRP through the Samsung Pass settings with my Samsung account and then I was to flash stock firmware on to the phone, would the Samsung FRP lock prevent the user from using the device by asking for the email and password or would the new firmware get rid of any of the security measures put in place?
I understand the FRP lock files are stored on a hidden partition not wipeable through the stock recovery however considering signed firmwares are freely available it would seem to me that the FRP lock would be deemed useless if anyone could just do that.
I guess my final question would be do signed firmwares downloaded online and flashed over the existing firmware wipe the FRP lock partition of the phone?
Thanks again for your reply
Click to expand...
Click to collapse
Phone will ask Samsung or Google account only if you wipe the data (we assume that FRP lock has been enabled before wiping the data).
If you don't wipe the data while flashing any firmware while installing (or the firmware you try to flash doesn't wipe the data), phone won't ask you anything.
And, if FRP lock enabled on the device, bootloader will deny to boot (or flash) the unsigned kernel or recovery.
There's no way to wipe FRP lock via Odin.
So, we can say that FRP lock is pretty secure.
Yeah
But u can easy **** with samsung when u flash stock 5.0 with odin and on pc have sidesync or someting like that samsung suck because with that tutorial u can bypass frp really easy
JirkaPirkl said:
But u can easy **** with samsung when u flash stock 5.0 with odin and on pc have sidesync or someting like that samsung suck because with that tutorial u can bypass frp really easy
Click to expand...
Click to collapse
:/
well here's hoping a typical phone thief doesn't know how to do that....
Quick question though, can an S6 be factory restored if the user only used the phone's PIN from the lock screen to the factory reset option in the settings app? Or would you be prompted to use your fingerprint? I read somewhere that factory restoring a device through the settings app disables the innate android FRP but i don't know if it's also the case with Samsung reactivation lock which is supposedly similar to FRP.
Thanks for the replies I appreciate it
Read on the way out from house !!!
Sorry for my bad but im now on the way but 1 yeah u will need maybe fingerprint for turn off reactivation ( frp) but first when u lost your phone use samsung accound on the browser for track lock etc 2 for factory reset u need only turn off phone and go to the recovery mode
Hello. What's the easiest way to backup everything (and I mean everything, including detailed app data) before unlocking my bootloader? I want to flash a custom kernel with minimum modifications to anything else, and obviously I want to take a backup of everything before I lose them with the unlock process, but I haven't been able to find a way to do so on a stock ROM that's not even rooted.
Or is there a way to root my phone before I unlock it?
I've never had a OnePlus device before, so here I am, asking dumb questions. :silly:
Also, one more question (in three parts, sorry!): since some of the newer apps, especially banking apps, have started using stricter safety procedures, they can detect an unlocked (or even merely rooted) device, and so they don't work. 1) Is there any way I can use a custom kernel on a locked (or relocked) bootloader? 2) Is it possible to use a custom kernel on an unlocked phone that's not rooted? 3) If neither of the two is possible, how can I prevent said apps from detecting my unlocked bootloader and rooted phone?
Thank you very much in advance for taking the time to answer all of my questions.