Help - Stuck at Samsung Logo - recovery/boot loop - Samsung Galaxy S7 Edge Questions and Answers

I have S7 Edge Exynos, Marshmallow.
Successfully rooted using CF-autoroot.
Verified rooted using Root Checker.
After rooting, tried to install TWRP via Odin. Disabled the auto-reboot in Odin.
Flashed twrp-3.0.2-2-hero2lte.img.tar in Odin. Got a green PASS! in Odin.
Rebooted phone, no TWRP. Tried to reboot into recovery (TWRP), not successful.
I thought TWRP has been installed, but maybe my key combo is not correct, so I tried another way to reboot into recovery (TWRP) via app. I installed Quick Reboot app from Google Play Store, gave it Root Permission. Pressed "Boot into recovery".
Now the phone is stuck on the Samsung Galaxy S7 Edge logo. I pressed and hold power button - nothing. Pressed and hold Volume Up, Power and Home - nothing. I pressed and hold Volume down, Power and Home, the screen blanks for a short while, then gets stuck at the Samsung S7 Edge logo screen.
I tried connecting the phone to PC and to Odin, device not detected.
What should I do? Please help.

You need to flash via Odin.. than boot into recovery.. flash dm verity and enc.. patch.. otherwise phone wont boot

ManXXXX said:
You need to flash via Odin.. than boot into recovery.. flash dm verity and enc.. patch.. otherwise phone wont boot
Click to expand...
Click to collapse
Thanks for the advice. I'm not sure how to flash via Odin. The phone is currently stuck at Samsung logo. Cant power off, cant reboot. It just stays on at that Samsung logo. When I connect the phone to my laptop, the device is not connected. Odin doesn't detect the phone.

You need to reboot into download mode to flash with odin hold the power and home button and the volume down button for a minute or so them use odin

1. get your phone into download mode. (hold power+home+v.down)
2.once in download mode connect it to your pc
3. go to sammobile.com and find the right firmware for you. (according to phone model)
https://www.sammobile.com/firmwares/search/galaxy s7/
4. once odin shows that your phone is connected with something like : <ID:0/003> Added!! in the log tab and 0:[COM3] above it you're ready to flash.
*I hope that by now your download is ready, and you have a zip file. click to open the zip and extract ONLY the ap file from there.
for me (SM-G935F) the file name is : AP_G935FXXU1DQE7_CL11104523_QB13505684_REV00_user_low_ship_meta.tar.md5. (notice the AP before the file name).
5. now press the AP button and choose the AP_G935FXXU1DQE7_CL11104523_QB13505684_REV00_user_low_ship_meta.tar.md5 or whatever you extracted and press start. after that your phone should boot and you'll be good to go.

Eightan said:
1. get your phone into download mode. (hold power+home+v.down)
2.once in download mode connect it to your pc
3. go to sammobile.com and find the right firmware for you. (according to phone model)
https://www.sammobile.com/firmwares/search/galaxy s7/
4. once odin shows that your phone is connected with something like : <ID:0/003> Added!! in the log tab and 0:[COM3] above it you're ready to flash.
*I hope that by now your download is ready, and you have a zip file. click to open the zip and extract ONLY the ap file from there.
for me (SM-G935F) the file name is : AP_G935FXXU1DQE7_CL11104523_QB13505684_REV00_user_low_ship_meta.tar.md5. (notice the AP before the file name).
5. now press the AP button and choose the AP_G935FXXU1DQE7_CL11104523_QB13505684_REV00_user_low_ship_meta.tar.md5 or whatever you extracted and press start. after that your phone should boot and you'll be good to go.
Click to expand...
Click to collapse
Thank you very much for the detailed step by step instruction. I followed your instruction and managed to restore the stock rom, and the phone now works normally again. What a relief. You are a life saver!
The hardest thing was to get the phone to boot into download mode, because it just refuses to do so. It just stayed on, stuck at the samsung logo. Pressing down, home and power only make the screen flash briefly, then stuck at the logo again. The phone wont turn off. I had to leave the phone as it is to drain its battery. Once the battery is out of juice, the phone is finally off, then I connect it to PC, and pressed the key combo to enter download mode. After second try I managed to get into download mode. From there I followed the instruction to flash the stock rom again. I wouldnt know to extract and use only the AP file, as the instruction from sam mobile didnt say anything about it. But your detailed instruction did. The phone now works as normal. Thank you again! :good::good:
And thanks the rest who also provided advice in this thread as well. Much appreciated.

kevlarr said:
Thank you very much for the detailed step by step instruction. I followed your instruction and managed to restore the stock rom, and the phone now works normally again. What a relief. You are a life saver!
The hardest thing was to get the phone to boot into download mode, because it just refuses to do so. It just stayed on, stuck at the samsung logo. Pressing down, home and power only make the screen flash briefly, then stuck at the logo again. The phone wont turn off. I had to leave the phone as it is to drain its battery. Once the battery is out of juice, the phone is finally off, then I connect it to PC, and pressed the key combo to enter download mode. After second try I managed to get into download mode. From there I followed the instruction to flash the stock rom again. I wouldnt know to extract and use only the AP file, as the instruction from sam mobile didnt say anything about it. But your detailed instruction did. The phone now works as normal. Thank you again! :good::good:
And thanks the rest who also provided advice in this thread as well. Much appreciated.
Click to expand...
Click to collapse
If it won't boot up to Download mode.. in the future. just leave the combination pressed like for 30sec

ManXXXX said:
If it won't boot up to Download mode.. in the future. just leave the combination pressed like for 30sec
Click to expand...
Click to collapse
I didn't know that. Good info to have. Thanks.

Hi. Something just occurred to me. In sam mobile site, there are like 5 versions of 6.0.1 stock roms. I wasnt sure which ones were mine, so i just chose one. And I only installed the AP file, as per your instruction. Is it okay not to install the rest of the files like the BL, CP etc?
Then later, i decided to try out nougat, and flashed the stock nougat rom from sam mobile, again i only flashed the AP file. I didnt flashes the rest of the files like BL, CP, CSC etc. Is this okay? Or should i flashed all those files too?

Related

[Q] Deleted the system on my s4 i9505

Unfortunately I have deleted the system of my S4 i9505 from within TWRP :crying:
After having some fun with CyanogenMod I decided to try out the PAC rom. Following the installation instructions on their mod page I wiped the internal data of my phone but what as I was sliding the confirmation I realised that 'system' was checked. Too late
I have read through countless threads on this sight and others but have not had any success.
I have located the stock recovery image for my device.
When my device is first switched on I can still hit volume down + power button, and then volume up to enter the downloading mode (but if I don't the booting begins to loop at the Samsung Galaxy S4 logo and goes no further). Odin still recognises my phone and allows me to flash roms but when it does the auto re-boot at the end I don't have a system and it gets stuck on the booting at the Galaxy S4 logo.
Several threads have suggested that I Fastboot, I'm not sure if this is even an option with the S4 or not but please let me know if it you're sure that it is. I have been unsuccessful with my Fastboot attempts so far but if I just need to persevere with it then I can.
Any insight would be greatly appreciated :fingers-crossed:
In TWRP. Setting and Enable MD5 verification of backup files. (It maybe help.) Or Skip MD5 generation of backup.
And why you don´t flash stock ROM via Odin??
It's really easy.
Just reflash TWRP true Odin. Then flash the rom you want. That's all you need to do.
verny94 said:
In TWRP. Setting and Enable MD5 verification of backup files. (It maybe help.) Or Skip MD5 generation of backup.
And why you don´t flash stock ROM via Odin??
Click to expand...
Click to collapse
I'm not sure what the first part of your post means but I am not even able to access TWRP, that is the problem.
I have flashed the stock ROM via Odin. After I flash the ROM it does the normal re-boot. But I my phone loops on the splash screen without every actually re-booting properly.
Lennyz1988 said:
It's really easy.
Just reflash TWRP true Odin. Then flash the rom you want. That's all you need to do.
Click to expand...
Click to collapse
I have reflashed it but as described above my phone fails to reboot after the flash.
I might be missing something here. I'm not sure how to get into recovery mode after flashing the ROM. Immediately as the device begins to re-boot I've tried holding power button + volume up + home button but the screen goes black and when I let go of the buttons the phone just auto boots itself.
EDIT: My phone automatically attempts to boot whenever it is connected to USB.
Is it possible to flash an entire OS in a ROM rather than just altering the recovery??
1. Flash TWRP recovery true Odin. Make sure Auto-reboot is UNCHECKED. After it finished flashing, unplug it, reboot and try to get to recovery now.
Lennyz1988 said:
1. Flash TWRP recovery true Odin. Make sure Auto-reboot is UNCHECKED. After it finished flashing, unplug it, reboot and try to get to recovery now.
Click to expand...
Click to collapse
I have done that again (now having turned off the Auto-reboot (thanks btw). I can get Odin to come up with a big green PASS for flashing TWRP. Now when I try to boot into recovery however the phone vibrates and the flash screen comes up but then it powers down again. I'm just holding power button + volume up + home button to attempt getting into recovery but it isn't working. Do I need to try and flash another ROM?
EDIT: SUCCESS!!!! I made it to recovery (apparently this post was premature). It looks like failing to un-check the auto-reboot in ODIN was the problem. Thanks a lot man, that was a massive help. From recovery I was able to flash my backup ROM.
Ethereal95 said:
I have done that again (now having turned off the Auto-reboot (thanks btw). I can get Odin to come up with a big green PASS for flashing TWRP. Now when I try to boot into recovery however the phone vibrates and the flash screen comes up but then it powers down again. I'm just holding power button + volume up + home button to attempt getting into recovery but it isn't working. Do I need to try and flash another ROM?
Click to expand...
Click to collapse
No a rom has nothing to do with the recovery not working. Are you holding the buttons long enough? Just try to hold them for like 30 seconds even if it reboots 3 times.
Lennyz1988 said:
No a rom has nothing to do with the recovery not working. Are you holding the buttons long enough? Just try to hold them for like 30 seconds even if it reboots 3 times.
Click to expand...
Click to collapse
Guess I didn't edit my post as quickly as I thought I had, but it's all working now, thanks for the help.
Ethereal95 said:
Guess I didn't edit my post as quickly as I thought I had, but it's all working now, thanks for the help.
Click to expand...
Click to collapse
Good to hear

[Q] I bricked my Verizon S5. Any help appreciated.

I tried to upgrade to the latest version via Keis on my rooted S5. After it said it was successful, it rebooted and now it freezes on the verizon screen when it loads and goes no further. I tried to reset the phone by using Odin 3.09 and the original stock kernal G900V_NCG_Stock_Kernel.tar.md5 but it will just stay at the "samsung unlocked" screen, reboot, then goes into recovery mode. I have done a factory reset on it and re-tried the upgrade with no luck. It will only boot into the recovery mode automatically (I don't have to press anything, it just goes strait to it when it boots). Any advice?
Thank you,
pubert0 said:
I tried to upgrade to the latest version via Keis on my rooted S5. After it said it was successful, it rebooted and now it freezes on the verizon screen when it loads and goes no further. I tried to reset the phone by using Odin 3.09 and the original stock kernal G900V_NCG_Stock_Kernel.tar.md5 but it will just stay at the "samsung unlocked" screen, reboot, then goes into recovery mode. I have done a factory reset on it and re-tried the upgrade with no luck. It will only boot into the recovery mode automatically (I don't have to press anything, it just goes strait to it when it boots). Any advice?
Thank you,
Click to expand...
Click to collapse
Try this:
1 wipe data/factory reset in recovery
2 remove battery when done
3 start odin, load lollipop firmware, do not connect phone
4 hold volume down, home button and power. do not insert battery
5 insert battery, while holding volume down, home button and power
6 it should boot to download mode
7 now connect to pc
8 flash verizon lollipop in odin
lingowistico said:
Try this:
1 wipe data/factory reset in recovery
2 remove battery when done
3 start odin, load lollipop firmware, do not connect phone
4 hold volume down, home button and power. do not insert battery
5 insert battery, while holding volume down, home button and power
6 it should boot to download mode
7 now connect to pc
8 flash verizon lollipop in odin
Click to expand...
Click to collapse
I was able to finally get it working by following the directions here:
http://forum.xda-developers.com/showthread.php?t=2784880
I did try your way but it still gave me the same error. I think something got f'd up on the partitioning? I'm not sure, but i loaded it into Odin and it kept on failing. Only after I re-partitioned it, it finally came back. Thank you though for your help.
pubert0 said:
I was able to finally get it working by following the directions here:
http://forum.xda-developers.com/showthread.php?t=2784880
I did try your way but it still gave me the same error. I think something got f'd up on the partitioning? I'm not sure, but i loaded it into Odin and it kept on failing. Only after I re-partitioned it, it finally came back. Thank you though for your help.
Click to expand...
Click to collapse
Glad it worked out and thanks for telling how you solved it.

SM-N900J no display after boot screen

my note 3 only displays logo screen and turns black afterwards. it's works and reaches home but the screen has no display. i can access ODIN with display but can't access RECOVERY. also, i believe it is a software problem rather than LCD problem.
see this links to see the actual operation of the phone.
Pics: http://imgur.com/a/CWnLq
Video: https://youtu.be/Up8FN-OWqtI
thanks to anyone that might help! :fingers-crossed:
schizo666 said:
my note 3 only displays logo screen and turns black afterwards. it's works and reaches home but the screen has no display. i can access ODIN with display but can't access RECOVERY. also, i believe it is a software problem rather than LCD problem.
see this links to see the actual operation of the phone.
Pics: http://imgur.com/a/CWnLq
Video: https://youtu.be/Up8FN-OWqtI
thanks to anyone that might help! :fingers-crossed:
Click to expand...
Click to collapse
You can:
1. Boot your phone normally and conect it to the PC. Make a backup of all your internal (important) data.
2. Reboot in DOWNLOAD MODE (ODIN MODE).
3. Download and flash this FIRMWARE via ODIN (GUIDE here)
Joku1981 said:
You can:
1. Boot your phone normally and conect it to the PC. Make a backup of all your internal (important) data.
2. Reboot in DOWNLOAD MODE (ODIN MODE).
3. Download and flash this FIRMWARE via ODIN (GUIDE here)
Click to expand...
Click to collapse
i've already flashed it with stock ROMs from sammobile. but the outcome is the same. already flashed TWRP and CWM too with odin both 3.07 and 3.10. still, i'm stuck with the same problem.
Followed all the steps and the problem was solved, thanks!
schizo666 said:
i've already flashed it with stock ROMs from sammobile. but the outcome is the same. already flashed TWRP and CWM too with odin both 3.07 and 3.10. still, i'm stuck with the same problem.
Click to expand...
Click to collapse
Turn off your phone, and then turn it on pressing and holding Volume Up, Home, and Power button at the same time until you see a warning. Then press Volume Up to continue, and navigate using volume keys and select wipe cache/factory reset with the Home button, then reboot.
Please note that by doing this all your data will be lost.

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

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