Accidentally flashed over the bootloader, need help reverting. - Samsung Galaxy S7 Questions and Answers

As the title says, I accidentally flashed over my phone's stock bootloader with the wrong file. Now it's boot looping and I need some help to get it back to working condition. I've got the g930w8 model, can anyone help me?

Can you not get back into download mode?

Dumb_Bird said:
As the title says, I accidentally flashed over my phone's stock bootloader with the wrong file. Now it's boot looping and I need some help to get it back to working condition. I've got the g930w8 model, can anyone help me?
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Weird odin wont flash incompatible files and it would be hardbricked if it would work. Flash full stock rom

Related

[Q] Firmware not installing on S5570

I have flashed multiple roms on the phone, still the same error, could you please suggest further steps?
The phone had been sent to get the simlock removed, once I got back I performed a wipe to remove all personal data. since that time it's not booting at all.
I can turn into download mode and flash anything, but cannot enter to recovery, I got the notification "ramdump mode (arm9 mode)"
Thx in advance for any help.
bbalee77 said:
I have flashed multiple roms on the phone, still the same error, could you please suggest further steps?
The phone had been sent to get the simlock removed, once I got back I performed a wipe to remove all personal data. since that time it's not booting at all.
I can turn into download mode and flash anything, but cannot enter to recovery, I got the notification "ramdump mode (arm9 mode)"
Thx in advance for any help.
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i think they messed up with partitions flash stock firmware in odin
pradeepxtremehacker said:
i think they messed up with partitions flash stock firmware in odin
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Hi Pradeep, I have also attempted to flash stock firmware as well. Course without success.
bbalee77 said:
Hi Pradeep, I have also attempted to flash stock firmware as well. Course without success.
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give me the link that you followed to install i will say correctly
download firmware from www.samfirmware.com and install in odin
I would make a try with samfirmware as well and keep you updated.
Thx once more.

My galaxy s6 is stuck on bootloop nothing works please help.

Hello I am so new to this things, my S6 got stuck on installing system update. I downloaded official firmware and tried installing it with odin, it passed but then again got stuck installing system update. Can someone please help me, I am from El Salvador and I saved so much to buy this phone. When I go into recovery mode I get TWRP but i dont know what to do.
try downloadmode and install rom again wirh odin??
lambik333 said:
try downloadmode and install rom again wirh odin??
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I did, same thing it gets stuck on installing system update screen
dbuyck1 said:
I did, same thing it gets stuck on installing system update screen
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sometimes you have to wait for 10 mins......same as custom rom..
lambik333 said:
sometimes you have to wait for 10 mins......same as custom rom..
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I waited for almost 5 hours nothing happened
dbuyck1 said:
I waited for almost 5 hours nothing happened
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If you flashed a stock firmware successfully it will not boot into twrp, flashing a stock firmware will install stock recovery, which means the stock firmware did not flash properly. Have you tried smart switch at all? Are you sure you have the correct firmware to flash through odin?
sofir786 said:
If you flashed a stock firmware successfully it will not boot into twrp, flashing a stock firmware will install stock recovery, which means the stock firmware did not flash properly. Have you tried smart switch at all? Are you sure you have the correct firmware to flash through odin?[/QUOTE
Yes I am sorry I didn't explained that. Atfer I tried to install stock ROM it got stuck, then smart switch didn't recognize the device but I manage to do the emergency recovery thing with model number and s/n but same thing it got stuck on the same installing system update screen. After that I installed TWRP via Odin to try to push a custom ROM zip, I did that but when I tried to install it failed.
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Download Samsung SmartSwitch and from the upper menu select Emergency Recovery Mode, put your phone in Download Mode and connect it to your computer, enter your model number and S/N when asked, and it will download and install latest firmware for your model.
Sorry, i haven't seen that you already tried that.
dbuyck1 said:
sofir786 said:
If you flashed a stock firmware successfully it will not boot into twrp, flashing a stock firmware will install stock recovery, which means the stock firmware did not flash properly. Have you tried smart switch at all? Are you sure you have the correct firmware to flash through odin?[/QUOTE
Yes I am sorry I didn't explained that. Atfer I tried to install stock ROM it got stuck, then smart switch didn't recognize the device but I manage to do the emergency recovery thing with model number and s/n but same thing it got stuck on the same installing system update screen. After that I installed TWRP via Odin to try to push a custom ROM zip, I did that but when I tried to install it failed.
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That means TWRP works and Fastboot/Download works. What is the actual Galaxy S6 model? Mine is G920F.
What custom ROM did you try?
What version of TWRP are you using? The wrong one can create issues.
Did you wipe the phone trough TWRP first? Twice? Including internal memory?
Sent from my SM-G920F using XDA Labs
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Boot.img

Hi
I accidentally flashed custom recovery onto my boot.img and now my phone wont boot up anymore
Any way to solve this??
Billabomb75 said:
Hi
I accidentally flashed custom recovery onto my boot.img and now my phone wont boot up anymore
Any way to solve this??
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You need to flash firmware again. You can check it how to do it on YouTube
skrubxgt said:
You need to flash firmware again. You can check it how to do it on YouTube
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Thanks but I thought that and reflashed my stock frimware and then put on a custom rom but thanks anyways

galaxy s6 g920F only booting in download mode

Hi guys,
got an s6 from a friend and trying to fix his problem. the phone only boots in dowbload mode. never rooted, and i tried flashing an official firmware through odin. Hidden.img doesn't flash so I extracted it blablabla flashed it the right way afterwards and passes but..no succes. I've done this before but this phone is a pain in the *ss! so I only get download mode. flashed stock recovery...no succes...
someone encountered this problem??
https://www.youtube.com/watch?v=WeSAQOYbWd0
follow the steps in the video tutorial exactly ! you will succeed
apaxtc said:
https://www.youtube.com/watch?v=WeSAQOYbWd0
follow the steps in the video tutorial exactly ! you will succeed
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Hi,
Thanks for the help. Watched the video and follow his steps...
But now suddenly the hidden.img flashes on the phone.
So I get a green pass by Odin.
But phone doesn't start!
Tried "auto reboot" on and also off.
It doesn't fail anymore.
Deleted the hidden.img file and flashed it afterwards.
I can't get him alive. I'm gonna try other official firmwares with an older android version. I don't get it.... Why only download mode? Not even recovery opens. #notgivingup
should I try to root it with cf root and try to get a recovery mode on it? This phone needs to be wiped I guess.
try to get into recovery , and give general reset....
or try to install twrp -to install a custom rom...
does not make downgrade to android , it can break
apaxtc said:
https://www.youtube.com/watch?v=WeSAQOYbWd0
follow the steps in the video tutorial exactly ! you will succeed
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Click to collapse
apaxtc said:
try to get into recovery , and give general reset....
or try to install twrp -to install a custom rom...
does not make downgrade to android , it can break
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I already tried flashing a downgraded firmware... So the phone is dead you think? I Wil give it some more tries today. Thanks for twrp... Don't I need to be rooted?
liobeir said:
I already tried flashing a downgraded firmware... So the phone is dead you think? I Wil give it some more tries today. Thanks for twrp... Don't I need to be rooted?
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excuse me for delayed reply , it does not have to be root , (Enable USB debugging and OEM unlock ) but unfortunately you can not do it , but you can try if it works
apaxtc said:
excuse me for delayed reply , it does not have to be root , (Enable USB debugging and OEM unlock ) but unfortunately you can not do it , but you can try if it works
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I really tried everything, this phone won't wake up again I guess...
Thanks for the help.
apaxtc said:
excuse me for delayed reply , it does not have to be root , (Enable USB debugging and OEM unlock ) but unfortunately you can not do it , but you can try if it works
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Could it be that I super hard bricked this phone by flashing everything over and over? I always think, as long the phone boots in download mode you're pretty safe.
Can't flash twrp, stock recovery.....
No official firmware is booting the phone up. I used to have the hidden.img problem but nog every firmware flash completes but still doesn't boot the phone.
Is there an order in which I need to try to flash? Like, try firmware first, then a recovery,.... Or first a bootloader and modem, then a firmware...
Oh God help me!
Thanks for the replies I already got!
normal you should first bootloader ...after firmware
you tried that job ? https://forum.xda-developers.com/galaxy-s6/general/guide-repair-hard-bricked-devices-t3573865
apaxtc said:
normal you should first bootloader ...after firmware
you tried that job ? https://forum.xda-developers.com/galaxy-s6/general/guide-repair-hard-bricked-devices-t3573865
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Wow that link is a whole lot of Chinese for me. but I'll look into it this weekend! Thanks for keeping up with me. My phone still boots in download so I'm a step ahead. Gonna try flashing stock firmware without auto-boot ticked in Odin, then reset and restart phone manually in download mode and try to flash right bootloader. Should I go for the latest firmware or more like a 6.0.1 firmware?
firmware 7. is to good , why use it 6. ?
"Wow that link is a whole lot of Chinese for me. " lol for me too
apaxtc said:
firmware 7. is to good , why use it 6. ?
"Wow that link is a whole lot of Chinese for me. " lol for me too
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Well because I flashed like a couple of firmwares... And heard about downgrading is bad but... Yeah this isn't really downgrading.... Im just trying to wake up my friends phone. I will try to flash the latest firmware and then the bootloader right after it.
Hi guys,
So still no luck. Flashed latest stock firmware, tried flashing bootloader right after the successful flash, no luck. Tried rooting with cf-root, which completes but no custom recovery... Not booting. So yeah I'm on that download mode again. Anyone has some solutions I could try? Could I try converting a custom Rom zip to a tar file and flash it with Odin?
Thanks!
Hey guys
So I think i'm facing a similar problem on my s6 sm-g920f. When I flashed a stock rom 7.0 it passed with no errors, but when it tried to restart it just stays at Samsung logo. I too can't access recovery mode, only download mode. And when I try to do the "removing battery" method using volume down and power button it turns off but turns on right after and gets stuck on Samsung logo.
CrySomeMore said:
Hey guys
So I think i'm facing a similar problem on my s6 sm-g920f. When I flashed a stock rom 7.0 it passed with no errors, but when it tried to restart it just stays at Samsung logo. I too can't access recovery mode, only download mode. And when I try to do the "removing battery" method using volume down and power button it turns off but turns on right after and gets stuck on Samsung logo.
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At least your phone is booting to the logo. I literally flashed everything! Recoveries, stock roms, tried rooting, bootloaders, stock rom with and without hidden.img...pit files.... if you find something... Let me know!
Huh am facing similar situation one s6 was in softbrick I I had odin mode successful but it showed G9280d, custom binary system official, I got a similar stock recovery then The device did boot to home screen but system wasnot stable everything stated crashing I did reboot that's when it could only stop at Android s6 then I did cross check to get it labled g920f flashing ends with either CM erorr or bootloader, in miracle it stopped at hidden or CM or pit in odin am clueless.
Man try holding V- ,home button and power key it will work just try harder. I faced it just today though mine is still.

Hello everyone. I need some help PLEASE. LG K51S.

I just got a LG k51S and it is dtuck in bootloop. It won't shut off. It starts up goes to erasing then restarts same thing over and over. How can I fix this????
Can someone please!!!! Help Me also am new to this stuff. I know computers but not phones. I know funny right. Thank You all for any help.
WiccanWarlock said:
I just got a LG k51S and it is dtuck in bootloop. It won't shut off. It starts up goes to erasing then restarts same thing over and over. How can I fix this????
Can someone please!!!! Help Me also am new to this stuff. I know computers but not phones. I know funny right. Thank You all for any help.
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Is the bootloader unlocked
If yes than do u have a custom recovery installed like twrp or orangefox recovery if yes than it's easy
First boot into recovery than format data
If that doesn't work than u may have to either flash a custom rom or flash stock firmware for the device
Austinredstoner said:
Is the bootloader unlocked
If yes than do u have a custom recovery installed like twrp or orangefox recovery if yes than it's easy
First boot into recovery than format data
If that doesn't work than u may have to either flash a custom rom or flash stock firmware for the device
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Don't know if bootloader is unlocked or not. No custom that I know of. When I got it it was already in bootloop. I just want to try and put original firmware on it but can't even do that. Can only get it too stop restarting when put it in download mode.
Austinredstoner said:
Is the bootloader unlocked
If yes than do u have a custom recovery installed like twrp or orangefox recovery if yes than it's easy
First boot into recovery than format data
If that doesn't work than u may have to either flash a custom rom or flash stock firmware for the device
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Click to collapse
No custom rom or anything else. Got phone from family member and don't know what he did to it. All it does is restart says erasing with circle on screen then reboots. Over and over. I can get it in download mode but it won't take flash of regular stock so don't know what else to do. Please help am very noob when it comes to lg phones only messed with samsung before.
Thank you
WiccanWarlock said:
No custom rom or anything else. Got phone from family member and don't know what he did to it. All it does is restart says erasing with circle on screen then reboots. Over and over. I can get it in download mode but it won't take flash of regular stock so don't know what else to do. Please help am very noob when it comes to lg phones only messed with samsung before.
Thank you
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Did you ever fix this? I have experience with that model and can offer you some help and some programs that can help you fix it, unlock it, or even flash a gsi to it after unlocking the bootloader

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