Database Users

[Q] Problem with download mode (N900)

Hello guys.
So I just flashed the russian Lollipop firmware that came out for the N900 into my device. I followed all the procedure to the letter (I am really cautious and it's not the first time I've flashed stuff); went to download mode, connected my Note to the cable, added the MD5 to Odin and started flashing. The procedure finished and the phone restarted, but I got a black screen after the "Samsung Galaxy Note 3" screen you get when you start the phone, but that wasn't really the problem since I read that a lot of people got that black screen and solved it by flashing the firmware again. My problem is when I go to download mode (power off the phone then volume down + power + home) I get the "Warning!!" confirmation screen, and then I press Volume up to continue, nothing happens!! Even when I press Volume down (which should get out of download mode and restart the device) nothing happens!
In case you're wondering, I can get with no problem into recovery mode.
Is there a way I can fix this and get into download mode? Maybe a way to get directly into download mode without the confirmation screen (I did read somewhere that holding volume up + volume down while turned off and then connecting the cable to the phone should get it directly into download mode, but that apparently doesn't work for me)
Help would be much appreciated, and sorry for the bad english.

Recovery Is Not Seandroid Enforcing

I tried to root my phone S7 Edge 6.1.1 just a moment ago using ODIN and CF Auto Root. I got the PASSES! sign in ODIN but upon phone rebooting I am stuck on the Samsung S7 Edge logo screen with text in red 'Recovery Is Not Seandroid Enforcing" up the top.
At this time I am unable to turn my phone off, when I do it just turns back on and goes to the same screen. I can't get into download or recovery mode either.
Any help on how to fix would by greatly appreciated.
Thanks in advance.

Also thought I should add, my phone doesn't get registered when I connect it to my PC either, it wont show up in ODIN so I am unable to flash a stock recovery at this time.

It's trying to boot into recovery.
When you say you rooted with CF Auto Root, what did you do precisely? And did you follow Chainfire's specific instructions regarding the lack of screen output during the process?

Beefheart said:
It's trying to boot into recovery.
When you say you rooted with CF Auto Root, what did you do precisely? And did you follow Chainfire's specific instructions regarding the lack of screen output during the process?
Click to expand...
Click to collapse
Thanks for the reply.
I used CF-Auto-Root-zerolte-zeroltexx-smg925f.tar to root.
The steps I used was to simply put my phone into download mode and use ODIN to flash the file mentioned above. That is as far as I got unfortunately. I did this once before, a few month back when I first got the phone with no issues. I remember having to install TWRP but I couldn't remember if I did that pre-root or post-root. But I think that is where I went wrong.
Now I am unable to do anything with my phone. I can't turn it off, get into download or recovery mode. When I hold down VOL UP+POWER+HOME it just resets the phone back to the samsung logo screen.
Any ideas on what I could do?

You used the CF Auto Root file for an S6 Edge.

Beefheart said:
You used the CF Auto Root file for an S6 Edge.
Click to expand...
Click to collapse
OH GOD. You're right. I just realized that. I was supposed to have them saved into their own folders but I guess I saved that one too the wrong folder.
So what does that mean for the life of my phone then? Is it toast or is it recoverable somehow?

What is your model? Is it the SM-G935F? If so, first things first, download the correct CF Auto Root file for your device (here) and try again. Press VOL DOWN+POWER+HOME and it should reboot into Download Mode. Then try to flash the correct file in Odin again.
These phones are very difficult to hard brick, especially with something like CF Auto Root so you should be ok.

Beefheart said:
What is your model? Is it the SM-G935F? If so, first things first, download the correct CF Auto Root file for your device (here) and try again. Press VOL DOWN+POWER+HOME and it should reboot into Download Mode. Then try to flash the correct file in Odin again.
These phones are very difficult to hard brick, especially with something like CF Auto Root so you should be ok.
Click to expand...
Click to collapse
Thanks.
Yes, it is a SM-G935F. Unfortunately I am unable to reboot the phone into Download Mode. When pressing VOL DOWN+POWER+HOME it just takes me straight back to the Samsung logo where it says "Recovery Is Not Seandroid Enforcing". I'm hoping that once the battery drains completely I will be able to boot into Download Mode again.

Try simply resetting it instead. Press volume down and the power key (don't press home) for around 7-10 seconds. Once it starts to reset, remove your fingers from the buttons very briefly then press volume down, home and power to enter download mode.

Beefheart said:
Try simply resetting it instead. Press volume down and the power key (don't press home) for around 7-10 seconds. Once it starts to reset, remove your fingers from the buttons very briefly then press volume down, home and power to enter download mode.
Click to expand...
Click to collapse
That hasn't worked either unfortunately.

I just found this thread from a guy having a similar problem. He just had to wait for his phone's battery to drain completely and then he was able to enter download mode again.

You shouldn't have to though. If you can get the phone to reset at all (even if it's to make another attempt to go into recovery) then providing you time it right, you should be able to get into download mode. Did keeping your fingers on just the volume down and power buttons do anything? Keep them on continuously for up to 20 seconds and see what happens. Did you say pressing vol up & home & power made it reset and try to again get into recovery? What happens if, as soon as the screen indicated it's resetting, you remove your fingers and quickly press vol down & home & power instead?
Anyway, even if you have to wait until the phone dies, getting into download will be possible eventually. Then worst case scenario would be you having to reflash stock back. Or, as would be my preference, flash TWRP then flash a custom rom zip like Superman.
Just to confirm, I take it you selected OEM Unlock in dev options?

Beefheart said:
You shouldn't have to though. If you can get the phone to reset at all (even if it's to make another attempt to go into recovery) then providing you time it right, you should be able to get into download mode. Did keeping your fingers on just the volume down and power buttons do anything? Keep them on continuously for up to 20 seconds and see what happens. Did you say pressing vol up & home & power made it reset and try to again get into recovery? What happens if, as soon as the screen indicated it's resetting, you remove your fingers and quickly press vol down & home & power instead?
Anyway, even if you have to wait until the phone dies, getting into download will be possible eventually. Then worst case scenario would be you having to reflash stock back. Or, as would be my preference, flash TWRP then flash a custom rom zip like Superman.
Just to confirm, I take it you selected OEM Unlock in dev options?
Click to expand...
Click to collapse
I have never had any trouble getting into recovery or download before so I know the method. But just the properly clarify for you I will explain some of the combination I have tried without success. Bare in mind the phone is constantly turned on and idles on the Samsung logo.
I have tried:
Hold VOL DOWN+POWER+HOME, the phone resets and goes back to the logo.
Hold VOL DOWN+POWER, same as above.
Hold VOL UP+POWER+HOME, nothing happens at all.
Hold VOL UP+POWER, same as above.
Hold VOL DOWN+POWER+HOME, release and repress all on black screen, just goes back to logo.
Hold VOL DOWN+POWER, release and hold VOL DOWN+POWER+HOME on black screen, just goes back to logo.
and numerous other things like random combination to try and enter Download or Recovery mode, which have all failed.
Right now it's just stuck on the Samsung logo and staying there, taking forever to drain battery. I work in the morning so hopefully it is dead by then and I can get into Download mode.
Have already started download stock firmware in hopes that I will be able to flash it after.
Thanks a bunch for your help. If you think of anything else I might be able to try let me know!

Oh wow. 100+ attempts and I followed your last post about holding for up to 20 seconds. I was waiting ~5 seconds and releasing thinking that it hadn't worked.
Finally go into Download mode and will flash stock firmware and let you know how I go.
Thanks again! I owe you a cold one.
EDIT: Was no need to flash stock firmware. Just flashed the proper version of CF Auto Root and it worked. Again, thank you so much!

Fantastic. Hope you get it sorted.
On a side note, you have probably already tripped knox and you will have lost you OS data and possibly even what you have stored on internal storage. If so, I suggest you install TWRP, format data (you will lose everything with this but it removed encryption) and install a custom rom like Superman 1.9 from your external SD. It's better than plain stock and comes pre-rooted with plenty of other mods.

I can't get it to work? What keys did you held down?
This is how my screen looks
cs5-2.4pda.to/7951347.jpg (copy this link in browser)
I tried to root with Odin but I think I might have failed. How can I undo this?

recovery is not seandroid enforcing
hello,
my S7 Edge was rooted with cf-auto-root and worked fine but after 2 monthe I've installed LBE_Security_Rel_6.1.1928_A1_DE_v5_signed and reconized the message device is not tooted.
I was not very clever and cofirmed the question "fix the root problem" I don't remember exactly the words. After that root was gone.
I've flashed the stock Fw G935FXXU1APD1_G935FDRE1APC3_DRE but I still have the message "recovery is not seandroid enforcing" after trying to root with CF auto root.
AP:G935FXXU1APD1
CP:G935FXXU1APD1
CSC:G935FDRE1APC3
Is there any way to get root again
Any help on how to fix would by greatly appreciated.
Thanks in advance.

doodlemeat said:
I can't get it to work? What keys did you held down?
This is how my screen looks
cs5-2.4pda.to/7951347.jpg (copy this link in browser)
I tried to root with Odin but I think I might have failed. How can I undo this?
Click to expand...
Click to collapse
Simply hold down Home + Power + Volume Down for 10-15 seconds - don't release when the phone initially reboots and gives the same error, keep them held down and download mode will appear. I have to hold for 11 seconds, a strangely unrounded number.

Hello Guys I have this Same issue Yesterday....... This happens when you flash outdated CF Autoroot. CF Autoroot Updated on 25/08/2016... Download it...
Fix for Stuck in Logo Screen
Just Click and Hold ...... Vol Down + Menu + Power Keys ...... DO NOT RELEASE. IT Will Restart. DONT release. It will restart again and you will be download mode.

i found this during the rooting process. its a bit different to older samsungs on the s7 / s7edge. YOU HAVE TO KEEP HOLD OF VOL DOWN + HOME + POWER until it enters download mode, which can be 20-25 seconds

HELP! S8 won't boot after updating TWRP

I updated TWRP to 3.1.1.2 inside TWRP. The issue I encounter now is that my S8 stucks on the very first booting screen. You know the very first screen where it stated "Samsung Galaxy S8" and down below "powered by android".
I can't do anything. It's just like the phone has frozen at that state. Nothing works anymore. Even If I try to turn it off by pressing Volume down + Bixby + power button, it just restart and get stucks at the boot screen again and again. There's NO boot loop.
I'm on europe version of the Galaxy S8
stock rom and rooted (Magisk)
Got TWRP installed but after updating TWRP the phone freeze at the very first booting screen.
Any help would be appreciated!
Thanks for your efforts!

First of all - make sure you have the correct TWRP for your device. I know for myself that by searching google I got the S8+ twrp at first and flashed it by mistake without noticing.
Then try this-
Connect your device to a power socket (pc or wall, doesn't matter)
When you are on the very first screen, turn off the device by pressing Power + Volume down. Your device will shut down and you will see the charging animation.
Once you see it, disconnect the device from the USB and try one of the following:
Power + Volume up + Bixby for recovery mode
or
Power +Volume down + Bixby for download mode
I think the download mode will work, then just flash a stock rom or the correct recovery and try again

I failed right at the second step. Once I connect my S8 to power socket and tried to turn of the device by pressing Volume down + Power, the device turnt off for about 2 seconds and then reboot again to the very first screen. Even if my S8 is on power socket, I do not see the charging animation. So that is why I cannot continue with step 3.
Any Ideas buddy?
EDIT:
I got it enter the download mode
I downloaded the TWRP img from here https://eu.dl.twrp.me/dreamlte/

After enter the download mode, I flash TWRP via odin. It passed via Odin but my S8 doesn't enter TWRP but instead stuck at the very first boot screen.
Any ideas, buddy?
EDIT:
I've solved it myself. Thanks for your efforts!

I got the exact same problem but how did u do it please help me
Hi I just got the exact same problem as you but I cannot get how I would fix it please help???
Edit: I got it to download mode but I do nut understand how I would flash it

The only way around this I found was to Odin back to stock https://forum.xda-developers.com/galaxy-s8+/development/rom-galaxy-s8-t3749444
Then follow the instructions to reinstall twrp using odin https://forum.xda-developers.com/ga...-s8-exynos-t3847712/post77735501#post77735501

Please help, I think i bricked my phone

I just tried flashing my Phone and now i think its bricked, ill explain
So I used this website https://www.naldotech.com/install-twrp-7-0-nougat-samsung-galaxy-s6-s6-edge/ to try and flash my galaxy s6 edge +, i downloaded the twrp file and odin, then i went to this thread https://forum.xda-developers.com/galaxy-s6/help/help-installing-twrp-sm-g920f-7-0-t3610005 and did these steps "1. Download TWRP: https://eu.dl.twrp.me/zeroflte/
2. Start Odin as Admin
3. Boot Device into Download Mode
4. Connect your S6 to PC (Odin should show "Com 1" for example)
5. Click on "AP" and then choose twrp
6. Deactivate Auto reboot in odin
7. Flash it
8. When its done, hold Volume Down + power
9. Directly after screen goes black, make volume up + homebutton + Power
10. Now it should be flashed "
and on odin it said this
in a big blue box it said "reset" and i didnt know what it meant so i held power and volume down then volume up, home and power and this is where my problem is. it keeps turning on randomly and showing the logo then turning off and when i try and turn it on it also does it. i just checked odin again and now instead of saying reset it says pass with a green box

Oh guys i just got into stock recovery i think im saved please help me what do i do now?

never mind people i got twrp on there i flashed an older version and now twrps working, time to get magisk

In the future just find your tutorials on here and go through the steps slowly and carefully

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