I messed up my phone, cant access to download and recovery mode - Samsung Galaxy J7 (2017) Questions & Answers

Before this a flashed a custom ROM and it turned out buggy (black screen after sleep mode) so i wanted to change it to Stock firmware via. odin and failed (accidentally plugged usb out) now recovery mode and download mode is nothing but a black screen. I tried to flash it via odin again while black screen and it stuck on SetupConnection line.
Any small help is Appreciated!
EDIT: Phone model is SM-J710F (J7 Prime)

Worst technicer said:
Before this a flashed a custom ROM and it turned out buggy (black screen after sleep mode) so i wanted to change it to Stock firmware via. odin and failed (accidentally plugged usb out) now recovery mode and download mode is nothing but a black screen. I tried to flash it via odin again while black screen and it stuck on SetupConnection line.
Any small help is Appreciated!
EDIT: Phone model is SM-J710F (J7 Prime)
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Are you saying it powers on? Do you see the samsung logo?

ashyx said:
Are you saying it powers on? Do you see the samsung logo?
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Ye, after Samsung logo its just a blank screen

Worst technicer said:
Ye, after Samsung logo its just a blank screen
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How long are you holding POWER + HOME + VOL DOWN?

ashyx said:
How long are you holding POWER + HOME + VOL DOWN?
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After the splash screen, i stop holding it

Worst technicer said:
After the splash screen, i stop holding it
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Click to collapse
Keep the buttons held for another few seconds at least.

Related

Samsung Galaxy S4 1337M not booting to recovery

So basically, im a noob. i tried flashing stock lollipop on my galaxy s4 from CyanogenMod with odin, but it says not responding everytime pda is clicked. Now, when i try to boot up the phone with recovery mode (vol up home button and lock) it says "Recovery Booting" in the corner and vibrates twice. Then it tries to boot normally but of course fails with the cyanogenmod splash screen eternally spinning. PLZ HELP :crying: :crying: :crying: i have no other phone
pavee2000 said:
So basically, im a noob. i tried flashing stock lollipop on my galaxy s4 from CyanogenMod with odin, but it says not responding everytime pda is clicked. Now, when i try to boot up the phone with recovery mode (vol up home button and lock) it says "Recovery Booting" in the corner and vibrates twice. Then it tries to boot normally but of course fails with the cyanogenmod splash screen eternally spinning. PLZ HELP :crying: :crying: :crying: i have no other phone
Click to expand...
Click to collapse
Boot with DOWNLOADE MODE (Vol down+ home button + lock... Vol up then) and reflash the STOCK ROM via ODIN.
haha 1337. Thats a pretty cool model number
exppanda said:
haha 1337. Thats a pretty cool model number
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xD leet
Joku1981 said:
Boot with DOWNLOADE MODE (Vol down+ home button + lock... Vol up then) and reflash the STOCK ROM via ODIN.
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Click to collapse
Odin doesn't work. When I click PDA/AP it freezes up. I've tried waiting it out for more than an hour before, so it doesn't work...
First, have u closed all kies procceses at task manager?
Second, does the pc recognizing the device when it in downlad mode?
If it does
Try 2 things:
1) redownload the stock rom. And try again
2) download a differenet version of odin
If not recognizing install the samsung usb drivers first.
Sent from my SM-G900F using XDA Free mobile app

[SOLVED][PROBLEM]Trouble with i9505 (after boot logo screen, screen turning off)

Hi guys! I've got problem with my i9505. When i try turn it on i see samsung logo and after that screen is black (looks like it is shutting down). It is the same when i try to enter into download mode and recovery, and also charging screen.
I used Xposed, modificated stock lollipop rom, root and i thing thats it.
I've hope someone know what happend here.
Edit: SOLVED! Thanks for your help guys. That was easier than I expected.
HOW TO SOLVE IT
1.Power on your device and immediately start clicking HOME or/and POWER button until device start.
So the screen goes black in download mode or the phone turn off in download mode?
Is the battery charged?
It is probably the power button.
Try hitting it gently on a table to try and get the button unstuck.
In the worst case the button must be replaced.
audit13 said:
So the screen goes black in download mode or the phone turn off in download mode?
Is the battery charged?
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Click to collapse
Odin can't see my device even if i enter into download mode without screen. I remebered i used Xposed app to add 2 binds of keys.

Did I just hard brick my phone?

I was on efficient rom 3.3 and wanted to update to 3.4 but I was on some older versions of bootloader and modem so I wanted to update them first before moving to efficient rom 3.4. So I downloaded the BPHJ BL and CP for 935F, opened Odin and successfully flashed the files from download mode, it said the flash was successful and the phone attempted to reboot (as it normally does after an Odin flash), and now it's stuck at the Samsung logo with a red "recovery is not seandroid enforcing" in upper left corner. I try to boot into download mode by volume up+power+home button, the phone tries to do it but it gets stuck again at the same screen. If I plug my phone to the PC now, Odin doesn't even recognize it, it doesn't say added or anything, it's like the phone is not even connected.
I know I flashed the correct files because they are for the 935F (exynos international - my phone).
How the hell did this happen? Is the phone dead? Can I try anything else?
You have to get into download mode, otherwise it's normal that ODIN doesn't see anything.
Keep trying to get into DL mode. I've read several times here that people had the same problems with getting into DL mode while being stuck in a bootloop, but eventually succeeded after a lot of tries.
MisterKanister said:
You have to get into download mode, otherwise it's normal that ODIN doesn't see anything.
Keep trying to get into DL mode. I've read several times here that people had the same problems with getting into DL mode while being stuck in a bootloop, but eventually succeeded after a lot of tries.
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Click to collapse
I try to but it's just not working. I press vol up + power + home, the screen goes black for a second and then the Samsung logo appears again with the same error.
also i think u have to reflash through twrp the no-verity-opt-encript 2.1 zip. when flash different bootloader.
Sent from my SM-G935F using XDA-Developers mobile app
lvnatic said:
I try to but it's just not working. I press vol up + power + home, the screen goes black for a second and then the Samsung logo appears again with the same error.
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Click to collapse
Download mode is vol DOWN + power + home.
New bootloader also required newest version of TWRP.
So after going into download mode flash the newest TWRP and that's it!.
Sent from my SM-G935F using Tapatalk
NonXtreme said:
Download mode is vol DOWN + power + home.
New bootloader also required newest version of TWRP.
So after going into download mode flash the newest TWRP and that's it!.
Sent from my SM-G935F using Tapatalk
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Click to collapse
Yes the vol up was a mistake, I know up is for recovery and down for download mode. I tried booting into download mode and I still can't do it. I opened this up in the efficient rom thread and yes, I ran into this problem because I wasn't aware I needed the latest twrp version.
Anyway, I try booting into download mode by vol down+power+home and it doesn't work. I try vol dow+power and as soon as the screen goes black I keep holding on the home button as well, without releasing vol down and power. Still not working. The screen goes but instead of booting into download mode it goes back to the Samsung logo with the seandroid enforcing error. This is the first time I can't boot into download mode.
lvnatic said:
Yes the vol up was a mistake, I know up is for recovery and down for download mode. I tried booting into download mode and I still can't do it. I opened this up in the efficient rom thread and yes, I ran into this problem because I wasn't aware I needed the latest twrp version.
Anyway, I try booting into download mode by vol down+power+home and it doesn't work. I try vol dow+power and as soon as the screen goes black I keep holding on the home button as well, without releasing vol down and power. Still not working. The screen goes but instead of booting into download mode it goes back to the Samsung logo with the seandroid enforcing error. This is the first time I can't boot into download mode.
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Click to collapse
Have you try holding vol down+home+power without release them until the download mode come up?
What I mean is that you don't need to wait for screen to go black. Just holding the button combo and phone will automatically reboot and go into download mode.
Sent from my SM-G935F using Tapatalk
NonXtreme said:
Have you try holding vol down+home+power without release them until the download mode come up?
What I mean is that you don't need to wait for screen to go black. Just holding the button combo and phone will automatically reboot and go into download mode.
Sent from my SM-G935F using Tapatalk
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Yes, that's how I usually do it. It doesn't work. I'm thinking of going with the phone for a warranty repair but I'm worried that red seandroid enforcing error will raise questions about root. I booted into download mode a lot of times before, I know how to do it, it just doesn't work.
lvnatic said:
Yes, that's how I usually do it. It doesn't work. I'm thinking of going with the phone for a warranty repair but I'm worried that red seandroid enforcing error will raise questions about root. I booted into download mode a lot of times before, I know how to do it, it just doesn't work.
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Click to collapse
You're not hard bricked or you wouldn't have any thing showing on your screen.
First hold the power and volume down buttons only til it black screens then as soon as it does hold buttons for download Mode. It sometimes takes many times.
I've also read quite a few people let the phone die then plug it in to charge and then hold the buttons for download Mode.
That's how a friend of mine got his in download Mode.
"And on that bombshell!"
Sent from my Echoe powered AEL Driven G935F
s7freak said:
You're not hard bricked or you wouldn't have any thing showing on your screen.
First hold the power and volume down buttons only til it black screens then as soon as it does hold buttons for download Mode. It sometimes takes many times.
I've also read quite a few people let the phone die then plug it in to charge and then hold the buttons for download Mode.
That's how a friend of mine got his in download Mode.
"And on that bombshell!"
Sent from my Echoe powered AEL Driven G935F
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Click to collapse
Yeah I was thinking of that as well. Thanks.
Out of curiosity, if I go at Samsung now in this state, they will know for sure that the phone was rooted? Can I imply something like I tried updating with Samsung kies and now it's stuck?
lvnatic said:
Out of curiosity, if I go at Samsung now in this state, they will know for sure that the phone was rooted? Can I imply something like I tried updating with Samsung kies and now it's stuck?
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Click to collapse
seandroid enforcing error means the device can't load the security policy cuz u voided warranty
you could always say something like your kid was playing with it and it went into a bootloop or that there was an OTA update and it stoped midway and now your phone wont boot up hope for the best if they decline u goto another store to have it replaced/fixed some ppl arent knowledgeable about voiding warranty and issue a replacement
102skysx said:
seandroid enforcing error means the device can't load the security policy cuz u voided warranty
you could always say something like your kid was playing with it and it went into a bootloop or that there was an OTA update and it stoped midway and now your phone wont boot up hope for the best if they decline u goto another store to have it replaced/fixed some ppl arent knowledgeable about voiding warranty and issue a replacement
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Thanks for the reply. The battery finally discharged completely and turned off the device. So from the powered off state I managed to boot into download mode from the first try. Flashed the latest twrp and everything is working fine. Topic can be closed

Bricked galaxy s7 edge SM-935FD

Hi, i have bought an s7 edge wich is not booting up, in fact i can eneter in download mode (with the blue screen) but after a successfull odin flash the device keeps rebooting at Samsung Galaxy S7 Edge (powered by android), what can i do? Thanks in advance.
when flashin with odin use csc file not csc home
fruzi992 said:
Hi, i have bought an s7 edge wich is not booting up, in fact i can eneter in download mode (with the blue screen) but after a successfull odin flash the device keeps rebooting at Samsung Galaxy S7 Edge (powered by android), what can i do? Thanks in advance.
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Click to collapse
Try reset the device with recovery mode.. then turn it ON. Power button + volume up + home button
. Reset on recovery mode.then try.. hope it will work. its happened to me once..
Tamizhmani said:
Try reset the device with recovery mode.. then turn it ON. Power button + volume up + home button
. Reset on recovery mode.then try.. hope it will work. its happened to me once..
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Thanks, i cannot enter in recovery mode, i don't know how to turn off the phone since if i long press the power button it doesn't go off, if i press volume +, power and home while it is boot looping nothing happens, it keeps with his boot looping.
fruzi992 said:
Thanks, i cannot enter in recovery mode, i don't know how to turn off the phone since if i long press the power button it doesn't go off, if i press volume +, power and home while it is boot looping nothing happens, it keeps with his boot looping.
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Click to collapse
just press power button+volume -
Ahmed Ismael said:
just press power button+volume -
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Click to collapse
This only make the phone rebooting as before,
fruzi992 said:
This only make the phone rebooting as before,
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Click to collapse
sorry
first CHARGER PLUGGED INTO YOUR PHONE
sec power + volume -
Ahmed Ismael said:
sorry
first CHARGER PLUGGED INTO YOUR PHONE
sec power + volume -
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Click to collapse
Nothing, only vibrates and logo, i repeat i can still enter in download mode but idk how to fix the phone since the flash via odin led me to this result
thebiggboss180 said:
when flashin with odin use csc file not csc home
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Click to collapse
I used the CSC (not HOME_CSC) but same result
Are you sure you are flashing the correct firmware? Download the latest one and try again.
Honestly it could just be a busted battery instead causing this issue, had this happen before for a client on a s6.
If you already tried flashing SM-G935FD firmware with CSC file which makes the phone automatically do a wipe data / factory reset in recovery mode then you probably have an hardware issue instead.
benjamen50 said:
Honestly it could just be a busted battery instead causing this issue, had this happen before for a client on a s6.
If you already tried flashing SM-G935FD firmware with CSC file which makes the phone automatically do a wipe data / factory reset in recovery mode then you probably have an hardware issue instead.
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Click to collapse
I think so. After a night powered on (since i couldn't turn it off) i plugged the wall charger and the blue installing system update screen appeared and the phone soon rebooted after ten times like these the blue screen disappeared. How can i check the battery life to decide if it is the responsable? I've measured the absorption of the phone with his stock charger, it is 0.49 ampere does it mean something?

A20e stuck in download mode

Hi,
I have a new a20e (a202f) out of the box.
I followed another guide to root and install twrp which turns out was wrong. I unlocked the bootloader just fine.
I have no backup, no personal boot.img or anything.
Essentially I am stuck in download mode and restarting takes me straight back to download mode.
Recovery: Error validating footer.
SW REV. CHECK FAIL (BOOTLOADER) DEVICE"
Cheers guys
What guide did you follow? You have to download your stock fw from sites like sammobile then from there you can have the boot.img and etc. Have you tried flashing stock fw using odin?
Note: Usually you flash vbmeta for footer error when you flash twrp.
Deluriane said:
What guide did you follow? Have you tried flashing stock fw using odin?
Note: Usually you flash vbmeta for footer error when you flash twrp.
Click to expand...
Click to collapse
It was a guide on 'unofficialtwrp.com' - I can't link things here yet.
I have since tar'ed an unpatched twrp (TWRP-3.3.1.0_A20_by_Agrim720.img) + vbmeta.img + boot.img (from https://forum.xda-developers.com/galaxy-a20/help/boo-img-a205fxxu2asfb-t4008739), then I flashed through AP on Odin and now I think it boots past the download mode but instead it now has fuzzy dark red screen with nothing legible.
Oh bugger, I've been a class A plum.
Can I get out of this horrible mess?
craigywaigy said:
It was a guide on 'unofficialtwrp.com' - I can't link things here yet.
I have since tar'ed an unpatched twrp (TWRP-3.3.1.0_A20_by_Agrim720.img) + vbmeta.img + boot.img (from https://forum.xda-developers.com/galaxy-a20/help/boo-img-a205fxxu2asfb-t4008739), then I flashed through AP on Odin and now I think it boots past the download mode but instead it now has fuzzy dark red screen with nothing legible.
Oh bugger, I've been a class A plum.
Can I get out of this horrible mess?
Click to expand...
Click to collapse
Well you have to use your own boot.img from your fw, not all of use the same fw that's why, some are still on u2, u3 and u4. Maybe the boot.img you got isnt the same as your fw.
Well you can start from scratch and reflash your stock fw in odin.
https://www.sammobile.com/firmwares/
Deluriane said:
Well you have to use your own boot.img from your fw, not all of use the same fw that's why, some are still on u2, u3 and u4. Maybe the boot.img you got isnt the same as your fw.
Well you can start from scratch and reflash your stock fw in odin.
Click to expand...
Click to collapse
Yep, but now I can not get back to download mode. Any pointers?
craigywaigy said:
Yep, but now I can not get back to download mode. Any pointers?
Click to expand...
Click to collapse
Try holding volume - and power and your phone will turn off, as soon as it turns off press volume + & - and plug your usb cable that is connected to a computer.
No luck with that. It displays the message about running custom os etc and to press power to continue. So I press it and it boots to the messed up red/pink/black display.
craigywaigy said:
No luck with that. It displays the message about running custom os etc and to press power to continue. So I press it and it boots to the messed up red/pink/black display.
Click to expand...
Click to collapse
Do you mean like the one attached? If yes you havent booted to download mode.
Try booting to recovery by holding volume + and power while you turn on the phone.
There is a option there to boot to download mode.
Deluriane said:
Do you mean like the one attached? If yes you havent booted to download mode.
Try booting to recovery by holding volume + and power while you turn on the phone.
There is a option there to boot to download mode.
Click to expand...
Click to collapse
Yes that screen. I've tried your suggestion with volume + but that also ends up with messed up screen
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
craigywaigy said:
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
Click to expand...
Click to collapse
Are you sure you pressed and hold volume +&- and plugging cable before the samsung logo pops up? You have to do it quickly right after the device turns off. You shoudn't see the bootloader warning if you done this quickly and correctly.
craigywaigy said:
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
Click to expand...
Click to collapse
Hello -
Please trust me when I tell you that it can be fixed. I had the EXACT same problem and drove me crazy for 24 hours. You can deffinetly fix your phone once you get to download mode.
I had the same issue where I could not turn the phone OFF it just looped back and I pushed buttons for hours to no avail... Then some one told me it WILL WORK, it is just the timing of
the button pushing, AND the USB cable plug in. Sure enough he was right. It took me alot of tries and I even took my phone apart and un plugged the battery so I could controll the power
ON / OFF better and time the button's easier. Here is what I did ...
unplug battery so phone was 100% OFF.
Plug in battery ( phone is still OFF )
Hold Vol - then Hold Power and Vol -
As soon as the power started IMEDITALY PLUG IN USB ( have USB READY to be plugged in FAST )
DONT let go of buttons ... screen will flash quickly and then Imediatly let go of power keep holding Vol -
IF you timed this right, IT WILL proced to download mode. If not, then start over again from power OFF ( step 01 )
It took me 3 tries to get it ( after 50+ tries before ) lol
Now I am not sure about the battery unplugging ... maybe you dont need to, but it mad it work for me as I could control the power ON part of this now.
Getting to your battery is not very hard and there is a you tube video on how to do it... if you need help just PM ME.
Good luck friend.
When this happened to me all I did was hold volume up and volume down. Kept cord connected to computer. Connected to device during the bootloop and boom within seconds I was in download mode. It catches it once screen goes off in between the bootloop.
Sent from my SM-N950U using Tapatalk
Thanks you guys. In the end the battery died and then I could power up whilst holding vol+, straight to recovery and then I could flash stock rom.
Much appreciation for your help guys, it got me out of a pinch - it is my mother-in-law's new phone!
craigywaigy said:
Hi,
I have a new a20e (a202f) out of the box.
I followed another guide to root and install twrp which turns out was wrong. I unlocked the bootloader just fine.
I have no backup, no personal boot.img or anything.
Essentially I am stuck in download mode and restarting takes me straight back to download mode.
Recovery: Error validating footer.
SW REV. CHECK FAIL (BOOTLOADER) DEVICE"
Cheers guys
Click to expand...
Click to collapse
can you help me i have the same problem idk how to fix it help

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