Recover data from factory reset G955U oreo - Samsung Galaxy S8+ Questions & Answers

So, I was dumb and thought some pictures and videos of the kids birthday were backed up before I did a factory reset (was trying to fix battery drain issue). I have a G955u model s8 + that had the oreo update ota. I tried some recovery software but it says I need to root the phone, which I can't seem to find a way to do. Do I have any options at getting to this data? Thanks for the help!

Most file recovery programs are fake. Your device was probably factory encrypted and therefore unrecoverable. Rooting is what 99% of the threads on this forum are about but that will require another factory reset and data recovery would be impossible even if the device wasn't encrypted.

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Could my stock firmware be hacked?

Hi guys.
I've got a phone in to reset form a customer who thinks the device was compromised. I usually work on PCs so wanted to check with you guys.
The phone will of course be getting a factory reset.
However what about checking if the firmware has been compromised. I could install a 3rd party firmware but not sure granting root would be a good idea for this user. I think stock firmware is best but wondering on best way to check its not been tampered with.
Edit Sorry just realised I missed the most important bit off,
Phone is a Galaxy S6 Edge+ running 6.0.1
Which model?
Can you try to reset it with the phones software?
This should be the most safe procedure.
The phone has been reset using the setting menu "Factory reset". Really what I'm wondering is what if the firmware has been compromised
bigmonmulgrew said:
The phone has been reset using the setting menu "Factory reset". Really what I'm wondering is what if the firmware has been compromised
Click to expand...
Click to collapse
I thought that reflashing the stock firmware with the Samsung app is the best and safest way. This procedure should be the best method

Restoring Photos to Samsung Galaxy 8+ SM-G955U

This Saturday, my son accidentally deleted over 20k photos on my phone. After murdering him, I rooted my phone using this method:
https://forum.xda-developers.com/ga...root-partcyborgrom-aqk3-samfail-odin-t3717702
This requires a factory reset at the end.
Since then I've been trying every program I can find on the pc (fonelab, dr. fone, mobisaver, remo (which won't even recognize my phone)) and on android (diskdigger and others) and can find nothing.
Any help out there or am I completely screwed?
Where were the pictures saved? Internal storage or SSD?
I think there is nothing you can do if the images were deleted by user interaction.
The Partcyborg root process basically involves flashing a pre-rooted image, and then the factory reset. I don't think you would meet with any success in trying to recover the deleted data
Here's a response from the creator of the rom
https://forum.xda-developers.com/showpost.php?p=75562856&postcount=3
Although that device was an exynos variant, the same applies to the US/Canada variants

TWRP On Samsung S7 Without Losing Data

Hey everyone,
I am new to the programming scene and this forum.
Anyways, I run a repair business in Ontario and have repairs come in daily. In particular today, I had a Samsung Galaxy S7 come in for repair and the issue the customer explained was they forgot their pin or pattern lock. I used to be able to use TWRP and go into the system and delete the gesture.keys without losing all data but I read up on the new technology now with Knox and bootloader and I was told flashing TWRP on the Galaxy s7 without bootloader unlocked will cause bootloop. All I need is to get into TWRP to delete those keys because customer CANNOT lose any DATA (very important). Is there anyway to get TWRP on the Canadian variant without wiping or causing a boot loop. I don’t need root. Just need access to the system files from recovery to delete that key file. Unless someone else can chime in and offer another solution, but please HELP!
ghostnetworksolutions said:
Hey everyone,
I am new to the programming scene and this forum.
Anyways, I run a repair business in Ontario and have repairs come in daily. In particular today, I had a Samsung Galaxy S7 come in for repair and the issue the customer explained was they forgot their pin or pattern lock. I used to be able to use TWRP and go into the system and delete the gesture.keys without losing all data but I read up on the new technology now with Knox and bootloader and I was told flashing TWRP on the Galaxy s7 without bootloader unlocked will cause bootloop. All I need is to get into TWRP to delete those keys because customer CANNOT lose any DATA (very important). Is there anyway to get TWRP on the Canadian variant without wiping or causing a boot loop. I don’t need root. Just need access to the system files from recovery to delete that key file. Unless someone else can chime in and offer another solution, but please HELP!
Click to expand...
Click to collapse
If the bootloader on that device is locked, you won't ever be able to use TWRP at all, not ever, not by any means.
If you know exactly what firmware build number thay had installed before this happened, you can try flashing that exact version of stock firnware via Odin. As long as the firmware that you flash does not contain a different(upgraded/downgraded) bootloader, it "shouldn't" wipe their personal data but it does wipe the user settings(pin/pass in this case). When flashing via Odin, the user data does not get wiped unless the bootloader on the device is upgraded or downgraded during the flashing process. Their data should stay intact if you use the firmware version that is already on the device.
If the bootloader is locked, then regardless of what you do, flashing the firmware is the only way you're going to fix this, whether it wipes their data or not. Flashing the current firmware that is already on the device is really your only option.
Sent from my LGL84VL using Tapatalk
TWRP
I’ve managed to reset the password because cudtomerbhad her Samsung account linked to the phone. Logging into Samsung online gives you the option to remotely unlock the pattern. She now has all her data and password is gone. Thanks for the quick reply regardless
ghostnetworksolutions said:
I’ve managed to reset the password because cudtomerbhad her Samsung account linked to the phone. Logging into Samsung online gives you the option to remotely unlock the pattern. She now has all her data and password is gone. Thanks for the quick reply regardless
Click to expand...
Click to collapse
Ah yeah, I forgot about that option because I don't use the Samsung account feature on my phones. Plus, I was looking from a perspective of what could be flashed or not without causing data loss.
Sent from my LGL84VL using Tapatalk

I'm trying to use EaseUS but I have to root the phone; but I'd have to downgrade...

Hi,
I'm trying to use EaseUS to recover some photos deleted by accident. However, my phone has to be rooted. It's a Nokia 5 and it's currently on Oreo 8.0.0. From my understanding, I'd have to downgrade it to Nougat in order to be able to root it. Can I root it now without downgrading, as I'm pretty sure downgrading would totally wipe all recoverable data on it, including the photos I'm after. All in all - what to do???

Costum binary blocked by FRP lock

Hi All
I have an S7 Exynos with latest Magisk installed and everything has been working flawlessly till I decided this early morning, for not any particular reason(except my increasing amount of grey hair ), to lock the "developer options". I think I have done the same maybe a couple of years ago though cannot remember how I had solved it.
Obviously my phone was instantly locked.
Would someone be able to link a good working solution with being able to keep data and apps? I am a bit desperate as my work is starting again tomorrow.
Thanks a lot.
look at frp bypass
Costum binary blocked by FRP lock is a protection, whene you do a factory reset from recovery. the only way you get this message is with odin.
this one works for me on s7, s7 edge and s6 tab
Thanks @Dagobert
I will have a look at it now and see if it is not too scary. See my S7 FRP
kiwigi said:
deleted as repeated post
Click to expand...
Click to collapse
Do you have acces to the phone?
kiwigi said:
deleted as repeated post
Click to expand...
Click to collapse
If you have acces to the phone then backup your data do a factory reset. Then you can flash whatever you want. Frp lock is a google protection with a google account. Whene you do a factory reset from settings you wipe the frp.
What is Google FRP?
FAQ for Samsung Mobile Device. Find more about 'What is Google FRP?' with Samsung Support.
www.samsung.com
I have access to the phone via PC/Odin only. No booting as per image above. I wand to keep Data and Apps
I assume I have to flash stock with home csc to be able to enter the phone again? Then root again, if I so wish?
Yup. Maybee a long shot but try Flashing your former firmware with Odin, using HOME_CSC. I think thats the solution
More info on that in this topic
Help! How to flash without losing data?
Good day! My phone got stuck on breathing Samsung logo after my phone updates. Now the only option I have in mind is to restore factory data. But I have some important files in my phone that is very essential in my work. I know I have read that...
forum.xda-developers.com
hmm., done the flashing with the files plus home csc and it asks for password, which I have entered without success. I know the password and it justs does not accept it.
See the factory reset warning and the FRP lock still being on now.
I'm desperately trying to avoid wipping data and apps.
edit: unfortunately I had to format/reinstall as I could not find a workable option.

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