Please Help! May have softbricked my Galaxy S6 when trying to unroot! - Galaxy S6 Q&A, Help & Troubleshooting

Ok. So I was attempting to unroot my phone earlier, so I downloaded a stock firmware and used odin to put it on my phone (don't know the technical term). When is was going through all of the things in odin, it said it failed and said 'Complete(Write) operation failed'. I then tried to download a stock firmware from another site, and the same error popped up. I kept retrying and sooner or later I realised that my phone was saying that there was an error updating and I need to use emergency recovery thing in smart switch. I tried this, and neither smart switch, or Kies recognised my device. I then tried to use odin to flash this TWRP thing I have from something I did a while ago. This worked somewhat as I can now access this thing call team win recovery project. I can also enter download mode. Does anyone know how to help me?
Thanks

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need help! Odin wont flash! Can't boot to OS.

Here is the situation, I tried to flash a stock Skyrocket with CWM via Odin, and Odin keeps saying write failed. I then tried different USB ports, restarted the computer many times but still no luck.
This computer flashed SGS3 and Hercules before with no issue. I've also tried different USB cable. Now whenever I book the phone it said i need to connect to Kies to update. I can't even get into the stock recovery. The only thing i can get into is Download mode but Odin will not flash anything. How can I resolve this?
Please help!
Thank you.
RESOLVED:
I flashed the wrong ROM =D The phone is AT&T Galaxy S2. I kept thinking it was called the Skyrocket hence i download the wrong rom and recovery. That explained why Odin wont flash! After a while i realized the i-727 on the rom doesnt match the i-777 from my phone
You got lucky, really lucky. Flashing a ROM for the wrong phone is usually a hard brick. Read the ROM threads and make absolutely certain you're flashing a ROM for the right phone the right way before doing so.

Need help with Unrooting Galaxy S7 SM-G930A

My phone is a Samsung Galaxy S7 SM-G930A. I recently rooted my phone and it was causing alot of problems such as slowdown and bugs. So, I tried to put stock firmware on it and I was unsuccessful. Now my phone is stuck in a boot loop. I need to know how to properly install stock firmware into my phone because I have followed guides on XDA'S website and Odin keeps failing. I really need help with this because I don't even have a working cell phone.
DarkSlayer356 said:
My phone is a Samsung Galaxy S7 SM-G930A. I recently rooted my phone and it was causing alot of problems such as slowdown and bugs. So, I tried to put stock firmware on it and I was unsuccessful. Now my phone is stuck in a boot loop. I need to know how to properly install stock firmware into my phone because I have followed guides on XDA'S website and Odin keeps failing. I really need help with this because I don't even have a working cell phone.
Click to expand...
Click to collapse
Download samsung kies 3 and put the phone in download mode and try to recover the phone by flashing the default firmware that came with the phone.
Kies 3 does not support my device (SM-G930A)
RiTCHiE007 said:
Download samsung kies 3 and put the phone in download mode and try to recover the phone by flashing the default firmware that came with the phone.
Click to expand...
Click to collapse
Thank you for the response but when I connected my phone to Kies 3, I got a message that said "we do not support this device". I have also tried Samsung Smart Switch and that did not work either. Is there another method for restoring my phone and getting it out of the bootloop?
DarkSlayer356 said:
Thank you for the response but when I connected my phone to Kies 3, I got a message that said "we do not support this device". I have also tried Samsung Smart Switch and that did not work either. Is there another method for restoring my phone and getting it out of the bootloop?
Click to expand...
Click to collapse
Yes i know you get that msg in kies but you still will be able to flash the orig fw back to the device with kies. Just put the phone in download mode before hooking up the phone to the pc then start kies
And go to the top bar and select the 4th tab where you will see recovery. Then it will ask you for the model number and some other things and after that it will flash the fw for you. I have done this a couple of times now so i can tell you 100% that it will work
RiTCHiE007 said:
Yes i know you get that msg in kies but you still will be able to flash the orig fw back to the device with kies. Just put the phone in download mode before hooking up the phone to the pc then start kies
And go to the top bar and select the 4th tab where you will see recovery. Then it will ask you for the model number and some other things and after that it will flash the fw for you. I have done this a couple of times now so i can tell you 100% that it will work
Click to expand...
Click to collapse
I'm actually trying to do exactly this now, and have tried re-entering the correct model number and serial number into Kies numerous times.
No matter what, Kies continues to state "Please check the model name and enter it" even though all of the info entered is correct.
Any suggestions? I'm doing this with my G930A on Nougat (model "SM-G930A")

[Completed] Need help with Samsung Galaxy S4, Model: (SM-S975L)

I'm not sure if my phone is soft bricked or hard bricked. My phone was having some kind of firmware issues so like an idiot and not backing anything up, I tried to flash a stock firmware on my phone with odin and it failed. My phone is not rooted or anything it is complete stock and now when I try to boot up the phone I'm not sure if it goes into recovery automatically or what but when I turn it on it goes to this screen saying "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again.". If this is not recovery mode then I can only go in download mode I have tried going into recovery mode. I've tried odin several times, using different usb cables and different usb ports on my computer and still nothing, I have used Samsung Kies and Kies 3 they both fail and then tell me that I need to do emergency recovery from another computer with a code but it is just blank when it comes up it does not give me any codes. I've even went to Tools > Emergency firmware recovery and still shows no codes or anything it is still blank.
Suggestions?
I fixed it, for anyone who may have the similar problem this will help you: https://forum.xda-developers.com/galaxy-s4/general/guide-sm-s975l-twrp-4-4-2-custom-roms-t3009757
For me, all I needed to do was flash twrp recovery and my phone started working again so I decided not to mess with anything else

Softbricked phone using ODIN to auto-root.

Hi All,
Usual case here of a desperate cry for help. Not ventured into the Root world since my HTC M7 days and wish I hadn't now but here I am.
I have Clockwork Mod on my phone, OEM setting changed, and then I thought hey I'm ready to go. Downloaded auto-root for my SM-G930F and latest Odin, powered into download mode, plugged in the USB and ran ODIN with correct boxes checked.
Fast forward 1 1/2 hours and it was stuck on the cache img.ext4 for all that time. Don't ask how but at this point after googling every word combo I decided I'd pull the USB and run ODIN again but then..... 'AN ERROR HAS OCCURRED WHILE UPDATING THE DEVICE SOFTWARE. USE THE EMERGENCY RECOVERY FUNCTION IN THE SMART SWITCH PC SOFTWARE'. Schoolboy error but hey ho.
I've tried this, put S/N in etc, but it says I need to contact a service center. I know my Warranty is void.
Basically how on earth do I get back from this situation. It's over 3 hours since this message and I''ve been looking and looking on the net for answers.
Obviously loss of data etc. is not an issue, I'd just like to use my phone again.
Any help would be much appreciated.
Thanks in advance
Solved. DL TWRP and ran it on Odin . Drama queen here

(SOLVED) Custom binary blocked by FRP lock message when i try to boot my phone

Edit: It seemed as it solved itself, look in the replies for details
So i have had my gs7 rooted for a year or longer. Yesterday i rebooted my phone and got the error message "Custom binary blocked by FRP lock". Sadly, when i enter download mode and plug it into a pc with odin installed, it is not recognised. Odin does not say anything about a phone plugged in, and windows says the usb is not recognized.
What i think have caused this:
I downloaded an app that allowed me to record internal audio
I turned off developer options, and my stupid ass did not realize that is where oem unlock is located.
What i have tried:
Resetting to factory settings (from recovery mode)
Deleting cache (from recovery mode)
Using odin, but odin does not even recognize my phone
Tried using another computer with odin
tbh, looking at the other posts, i think i messed up. I dont want to send it in for repairing because i will have to pay a lot of money. I have tried sending it in for repairing a while ago. Then my problem was that i could not call with it, but they wanted me to pay the price for a new phone to repair my old phone, since i had rooted it. I did not accept it so i got my phone back, and managed to fix the issue myself. I hope i manage to fix the issue this time aswell.
There are lots of guides online on how to resolve this issue, please Google and read. Please make sure you have Samsung USB drivers installed on your pc
cooltt said:
There are lots of guides online on how to resolve this issue, please Google and read. Please make sure you have Samsung USB drivers installed on your pc
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Click to collapse
I have samsung usb drivers installed, and download mode has always been working and has always been recognized by odin ever since this happened. And online all i find is that i should boot into download mode and try using odin, but odin does not recognize my phone, nor does my computer.
10krlan said:
I have samsung usb drivers installed, and download mode has always been working and has always been recognized by odin ever since this happened. And online all i find is that i should boot into download mode and try using odin, but odin does not recognize my phone, nor does my computer.
Click to expand...
Click to collapse
Please pay attention to guides when messing about with your phone, OEM and Debugg are critical to being able to modify.
Look here for a solution.
https://www.mobikin.com/android-backup/computer-does-not-recognize-android-phone.html
cooltt said:
There are lots of guides online on how to resolve this issue, please Google and read. Please make sure you have Samsung USB drivers installed on your pc
Click to expand...
Click to collapse
SOLVED!
The issue fixed itself, im not sure what i did. I was suddenly able to connect my phone to odin. Just incase someone reads this with the same problem. This is what i did: installed smart switch and rebooted my computer. Uninstalled and reinstalled samsung usb drivers.
Before i did those things the issue was still there, i was ready to use smart switch, but i tried odin one last time and it worked. Now samsung pass tells me my phone is rooted, even though it is not (my root dissapeared after resetting my phone), its not that big of an issue, just thought id let you know

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