Recovery and download mode without using a power button? - Galaxy S III Q&A, Help & Troubleshooting

Recovery and download mode without using a power button? - Galaxy S III Q&A, Help & Troubleshooting

Hello,
I need to enter download mode to flash custom recovery and then the recovery to flash a custom ROM, but my S3 doesn't have a power button, as I needed to brake it because it was causing reboots.
I've tried method from the 4th post of this thread http://forum.xda-developers.com/gal...ow-to-boot-recovery-rom-power-button-t3006256 , but it doesn't work for me.
This is how I currently turn on my phone https://www.youtube.com/watch?annot...qLqi1aRm0Ow&src_vid=mKpOFTecfTg&v=l402ljcmPu4 , but adding home button and volume down while doing this doesn't get me to the download mode.
So, is there a way to enter the download mode and recovery mode with some software tricks (I'm not rooted)? I guess I've tried all the combinations with the phone turned off.
I need to get at least android 5.1 to use the oneplus vr app for buying 1+3, as I guess they will be out of stock before the "buying only by vr app" ends (12h) . Maybe there is a method to run that app on android 4.3?
My friends use iPhones , so I'm on my own...

I have the same problem, I rooted my s3 and enter the recovery, but now I'm stuck in it, cos without power button you can't select anything.
I guess if you menage to root your phone, you can use Rom Menager to install custom rom..

How did you root it without a power button? If you can enter download mode, you can flash touch recovery, so there will be no need to use the power button.

Jeffero said:
How did you root it without a power button? If you can enter download mode, you can flash touch recovery, so there will be no need to use the power button.
Click to expand...
Click to collapse
I root it with KingoRoot software for windows.

For rooted phones use TerminalEmulator. Type reboot download or reboot recovery. There are also apps which offer a widget for rebooting.
Use TWRP-recovery, it's fully touch-controlled.

funjai said:
I root it with KingoRoot software for windows.
Click to expand...
Click to collapse
I'm rooting S3 with Kingoroot for windows right now and it stopped at 99%, "waiting for the device" status in Kingoroot and the phone screen says "Downloading... Do not turn off target" but there's no proced bar under. 10 minutes passed with this status, so I guess it's stucked . Don't know what to do now...
edit:
20 minutes passed, so I unplugged the phone, turned it on and luckily it works. I guess I'm done with rooting, it's not worth it. I don't want to get a bootloop or something, as then I probably won't be able to revive the phone without that power button.

Sorry to hear that, I had no problems with Kingroot. Did you install all drivers for you phone on your pc?

The phone was recognised by my pc, so I didn't install any additional drivers. I think I'll try one more time with kingoroot android apk.
edit:
Doesn't work too, error at 90%. No way to root my phone I suppose.
edit 2:
Problem solved. I used adb to boot into download mode and then rooted with odin. Works fine.

Related

Can't get into download mode or recovery mode

I recently bought a rooted Galaxy S3 from a friend. The problem is I can't get into download mode or CWM recovery.
I tried installing CWM recovery using ROM manager (v5) but I got an error saying: "GT-9300 does not have an officiall supported CWM recovery yet.
The phone is on android version 4.1.1 at this moment.
Could you help me installing recovery?

r3inhout said:
I recently bought a rooted Galaxy S3 from a friend. The problem is I can't get into download mode or CWM recovery.
I tried installing CWM recovery using ROM manager (v5) but I got an error saying: "GT-9300 does not have an officiall supported CWM recovery yet.
The phone is on android version 4.1.1 at this moment.
Could you help me installing recovery?
Click to expand...
Click to collapse
No download mode then you have a faulty phone and require a service centre repair .
jje

You could try a usb jig to force into download mode. They're a couple of dollars / pounds whatever.
There's also a thread in general to find who could lend you one nearby
Sent from my GT-I9300 using Tapatalk 4

Just to eliminate things, how are you trying to get into recovery and download?

slaphead20 said:
Just to eliminate things, how are you trying to get into recovery and download?
Click to expand...
Click to collapse
That seems a smart question I'm new to Samsung.
Download: Volume down, power on button and front button (home button) pushed in at the same time whilst the device is off to get into download. Result: I see the screen go on (screen is black but there's backlight) and after a couple of seconds it just boots the normal android system.
Recovery is volume up, power and home at the same time when the device is turned off. Same here, I see a response e.g. the backlight goes on but after a few seconds the phone boots up normally.
The booting proces takes longer than it normally does when just turning the device on. I think the software installed is causing this (the hardware seems to respond but it's like the software just ignores the input)

r3inhout said:
That seems a smart question I'm new to Samsung.
Download: Volume down, power on button and front button (home button) pushed in at the same time whilst the device is off to get into download. Result: I see the screen go on (screen is black but there's backlight) and after a couple of seconds it just boots the normal android system.
Recovery is volume up, power and home at the same time when the device is turned off. Same here, I see a response e.g. the backlight goes on but after a few seconds the phone boots up normally.
The booting proces takes longer than it normally does when just turning the device on. I think the software installed is causing this (the hardware seems to respond but it's like the software just ignores the input)
Click to expand...
Click to collapse
I would suggest either trying with adb or as suggested, usb jig

offbleh never
slaphead20 said:
I would suggest either trying with adb or as suggested, usb jig
Click to expand...
Click to collapse
I'll keep my hands of the adb thing. I don't want to make my problem worse
In my country no one seems to know such a usb jig but I already found a place where I can order them
I just have to stick the thing in and wait for it to engage download mode before I plug in my normal data cable right?
Thanks for the help

So I believe. I've not used one myself
Sent from my GT-I9300 using Tapatalk 4

[Q] [HELP] I think i brick my phone... CWM reboot.

Hi guys.
Today i was trying to configure supersu, and i check one option that restarts my phone to clockwork mod, and everytime i try to boot, it goes to CWM, and not to the OS. I've tryed to flash other rom's but keeps going to CWM screen. I was trying to flash CWM via odin again, but i haven't used my phone in my new notebook, so i haven't the kies and samsung drivers, because of that, i think odin isnt recognizing the phone.
I install kies, install samsung drivers, but still odin don't recognize my phone.
The phone does not go to download mode too, only by CWM option.
Can someone help me?

just Flash CWM in odin again.
And never use shortcuts to Recovery mode again...
Edit: You can't go download mode and your pc don't recognize the phone? damn, i can't help, sorry

zanini007 said:
just Flash CWM in odin again.
And never use shortcuts to Recovery mode again...
Edit: You can't go download mode and your pc don't recognize the phone? damn, i can't help, sorry
Click to expand...
Click to collapse
Finally, after many hours, i've succeed!
Had to uninstall samsung drivers, kies, reboot my windows, install again only samsung drivers, and put in to download mode directly, not selecting in the CWM.
After this odin recognize the phone and i was able to install again CWM, and the rom.
And i discovered what happened to my phone brick. When i updated supersu and actived pro version, was showed for me some update option, and i clicked in CWM instead normal.

r3panca said:
Finally, after many hours, i've succeed!
Had to uninstall samsung drivers, kies, reboot my windows, install again only samsung drivers, and put in to download mode directly, not selecting in the CWM.
After this odin recognize the phone and i was able to install again CWM, and the rom.
And i discovered what happened to my phone brick. When i updated supersu and actived pro version, was showed for me some update option, and i clicked in CWM instead normal.
Click to expand...
Click to collapse
I had the same damn issue!! Took 8 hour to troubleshoot the usb driver in PC!! But mine was due to trying to FACTORY RESET the phone in the phone setting!!!

same problem here.....please suggest me what to do now?

utssav18 said:
same problem here.....please suggest me what to do now?
Click to expand...
Click to collapse
As usual my suggestion is flash cwm again using odin
Sent from my beloved GT-I8552

Download mode?
r3panca said:
Finally, after many hours, i've succeed!
Had to uninstall samsung drivers, kies, reboot my windows, install again only samsung drivers, and put in to download mode directly, not selecting in the CWM.
After this odin recognize the phone and i was able to install again CWM, and the rom.
And i discovered what happened to my phone brick. When i updated supersu and actived pro version, was showed for me some update option, and i clicked in CWM instead normal.
Click to expand...
Click to collapse
How Did You put your phone in download mode directly..

jainendra94mandavi said:
How Did You put your phone in download mode directly..
Click to expand...
Click to collapse
I dont remember, but i think "vol -, home and power"

jainendra94mandavi said:
How Did You put your phone in download mode directly..
Click to expand...
Click to collapse
To put your device in download mode, press Volume Down And Home And Power Button all together and when it vibrates release
Power Button but keep pressing left ones. You should have a triangle with an android janitor while it's saying downloading ..

download only samsing driver and then flash the cwm file using odin and this time check the auto reboot option..
for going in download mode:
press and hold volume down key+power+home and when phone vibrated release the power button but keep on holding the home button and volume down button..you will b in download mode..

flash cwm with auto boot option ticked problem solved, if it fails then re flash ROM.

Help getting recovey back

Hello all, I need some help with my new phone
Phone is an AT&T Optimus G E970
Phone was rooted and unlocked by myself... everything was ok!
After testing some roms, i have now lost the ability to enter recovery mode. After I press up + power button it will go into fastboot, but when y press down twice it will show the android logo with the chest open and a red triangle above... the weird thing is that the phone boots up fine with the last rom I flashed (wifi not working though).
Tried root checker and it said i am rooted. try to enter recovery from rom manager and it does nothing... would appreciate any help i can get from you guys

Bump
Sorry, but i am desperate to have this phone working at its full potential...

Try flashing recovery IMG file using flashify.

It sounds like you're using an older bootloader, which does not display the options.
Vol Up + Power enters Bootloader, not recovery. When you get to the screen with the android, press Vol Down Twice and then Power. This should get you in to Recovery.

n1mr0d said:
Try flashing recovery IMG file using flashify.
Click to expand...
Click to collapse
I downloaded but it says that the phone is not rooted... when i run root check it says "you are rooted!"... OMG!
OMGMatrix said:
It sounds like you're using an older bootloader, which does not display the options.
Vol Up + Power enters Bootloader, not recovery. When you get to the screen with the android, press Vol Down Twice and then Power. This should get you in to Recovery.
Click to expand...
Click to collapse
That is what i tried doing... please look at the pics i attached... I can get to the bootloader at least. I also tried to re-root but i will need to change from "Charge Only" to "MTP" and the rom that's on the phone now ([ROM][KOT49H] AOSP-GEEB 4.4.2_r1 [Dec-13]) does not have that option. What i want to do at this point is flash the recovery by any means possible so that i can install a stock JB at least. OR some other way of rooting which i think will fix the What would you recommend?
I rly appreciate you looking into this for me

Stuck Up .. Screwed!! Plzz Help.....

Hello Guys,
Yesterday I received my ATT LG E970 Phone, I was trying to remove ATT Apps from the phone. So, I did using ..
http://forum.xda-developers.com/showthread.php?t=2006946 >> How to "root" your Optimus G
Then it installed SuperSU on my phone. After that I unstalled an Uninstaller APP from Playstore and uninstalled all ATT as well as some Google Apps.
Now, I did reboot and EveryBAD thing happens from here. I got stuck at LG Logo .. It saying "Security Error". After that I serached on xDA Forum for solution of it. And I found this guide ..
http://forum.xda-developers.com/showthread.php?t=2230994
After reading it I installed LGNPST and connected phone in "DOWNLOAD Mode" and downloaded TeenyBin and did as per his manual. But unfortunately first option didn't worked. So , I used Alternete Tennybin File.
After Rebooting, I got a Google Logo instead of LG.. Don't know and as per instructions I entered in Fast Boot mode. In fast Boot mode some Green Android icon came and I can change the setting using volume + and - button. I eneterd from there in RECOVERY Mode.
After pressing Power in Recovery Mode of Green Android the phone rebooted and It eneterd in "Team Win Recovery Project". I din't know what to do with it. After some searching I did a Factory Reset using Wipe button in "Team Win Recovery Project". and Rebooted but still Noting Happened. Phone restarted with Google Logo and there after nothing comes :S
After that I agin entered in Fast Boot Mode.. using Vol + and Power buttton together and eneterd in Recovery mode and again went to Wipe in "Team Win Recovery Project" and then Advanced and selected all folders and Deleted all. After that I rebooted using "Team Win Recovery Project" but it said NO OS INSTALLED.
I was totally stuck. I don't know what to do. Finally I slept with 8 hrs Messed. I woke up in morning and phone is not even Starting now. When I connect to Charger. Red Light Blinks in power button n then Goes OFF. and I tried connecting it to PC too via USB but again same happens. The PC didn't recognized the Phone. I also Tried in DEVICE Manger, but No use. I can't see any Device there too. :S
Please Help WHAT Should I DO NOW ????
Any help will be really appreciated.
PS : It was ATT Unlocked phone. I don't have any warranty.

not screwed
promoking said:
Hello Guys,
Yesterday I received my ATT LG E970 Phone, I was trying to remove ATT Apps from the phone. So, I did using ..
http://forum.xda-developers.com/showthread.php?t=2006946 >> How to "root" your Optimus G
Then it installed SuperSU on my phone. After that I unstalled an Uninstaller APP from Playstore and uninstalled all ATT as well as some Google Apps.
Now, I did reboot and EveryBAD thing happens from here. I got stuck at LG Logo .. It saying "Security Error". After that I serached on xDA Forum for solution of it. And I found this guide ..
http://forum.xda-developers.com/showthread.php?t=2230994
After reading it I installed LGNPST and connected phone in "DOWNLOAD Mode" and downloaded TeenyBin and did as per his manual. But unfortunately first option didn't worked. So , I used Alternete Tennybin File.
After Rebooting, I got a Google Logo instead of LG.. Don't know and as per instructions I entered in Fast Boot mode. In fast Boot mode some Green Android icon came and I can change the setting using volume + and - button. I eneterd from there in RECOVERY Mode.
After pressing Power in Recovery Mode of Green Android the phone rebooted and It eneterd in "Team Win Recovery Project". I din't know what to do with it. After some searching I did a Factory Reset using Wipe button in "Team Win Recovery Project". and Rebooted but still Noting Happened. Phone restarted with Google Logo and there after nothing comes :S
After that I agin entered in Fast Boot Mode.. using Vol + and Power buttton together and eneterd in Recovery mode and again went to Wipe in "Team Win Recovery Project" and then Advanced and selected all folders and Deleted all. After that I rebooted using "Team Win Recovery Project" but it said NO OS INSTALLED.
I was totally stuck. I don't know what to do. Finally I slept with 8 hrs Messed. I woke up in morning and phone is not even Starting now. When I connect to Charger. Red Light Blinks in power button n then Goes OFF. and I tried connecting it to PC too via USB but again same happens. The PC didn't recognized the Phone. I also Tried in DEVICE Manger, but No use. I can't see any Device there too. :S
Please Help WHAT Should I DO NOW ????
Any help will be really appreciated.
PS : It was ATT Unlocked phone. I don't have any warranty.
Click to expand...
Click to collapse
Hi,
dont panic, I went thru exactly the same process right up till the TWRP and wipe. All you need to do is get hold of the stock rooted rom zip from here:
Then copy it onto your sdcard, for which you can connect to the computer using Advanced menu of the TWRP, and load the sdcard, which will connect as USB storage to PC.
Then once file is on sd card, just go back to main TWRP meny and select install option, then select the zip file you just copied.
Let TWRP do its stuff, then do a factory reset / then go into reboot system.
Wish you all the best. Once the ROM has installed, now you can search for the latest TWRP, install it then go on to latest kit kat roms in exactly the same way.
milind

hope he follows up with a thank you.

milindchitale said:
Hi,
dont panic, I went thru exactly the same process right up till the TWRP and wipe. All you need to do is get hold of the stock rooted rom zip from here:
Then copy it onto your sdcard, for which you can connect to the computer using Advanced menu of the TWRP, and load the sdcard, which will connect as USB storage to PC.
Then once file is on sd card, just go back to main TWRP meny and select install option, then select the zip file you just copied.
Let TWRP do its stuff, then do a factory reset / then go into reboot system.
Wish you all the best. Once the ROM has installed, now you can search for the latest TWRP, install it then go on to latest kit kat roms in exactly the same way.
milind
Click to expand...
Click to collapse
Thank you bro for prompt reply. But Now I'm not getting TWRP from morning. When I connect to USB Notification Light Blinks and goes off. I'm unable to charge as well. How to boot up to TWRP. Moreover where to get stock Rooted ROM Zip?
Also I have downloaded this yesterday ..
ttp://downloads.codefi.re/g33k3r/LGE970AT-01-V20j-310-410-MAR-08-2013.zip
If this is the Custom Rom for my phone. (ATT LG E970)? Or I have to download some different ROM ?
Well, first thing how to get it to TWRP. I'm unable to get it from Morning :S

Get into bootloader by pressing volume up + power key simultaneously. Then press volume down key twice only. Next press power key once.
Rom you downloaded can be verified by search for Stock Rooted rom versio 20j. Hope u get thru ur troubles. Dont forget to press thanks button.
Cheers. Milind
Sent from my LG-E970 using xda app-developers app

milindchitale said:
Get into bootloader by pressing volume up + power key simultaneously. Then press volume down key twice only. Next press power key once.
Rom you downloaded can be verified by search for Stock Rooted rom versio 20j. Hope u get thru ur troubles. Dont forget to press thanks button.
Cheers. Milind
Sent from my LG-E970 using xda app-developers app
Click to expand...
Click to collapse
Hii,
Finally I reached on TWRP. Can I copy the Stock ROM Zip file in Memory Card and then install memory card on phone. And from Install in TWRP I can go the SD Card location and install it from there? Possible ?
Actually there was no battery on phone that is why the phone was not booting up to TWRP mode. Now I'm in TWRP and downloading Stock ROM. Hope it get fixed soon.
Many Thanks and Regards

promoking said:
Thank you bro for prompt reply. But Now I'm not getting TWRP from morning. When I connect to USB Notification Light Blinks and goes off. I'm unable to charge as well. How to boot up to TWRP. Moreover where to get stock Rooted ROM Zip?
Also I have downloaded this yesterday ..
ttp://downloads.codefi.re/g33k3r/LGE970AT-01-V20j-310-410-MAR-08-2013.zip
If this is the Custom Rom for my phone. (ATT LG E970)? Or I have to download some different ROM ?
Well, first thing how to get it to TWRP. I'm unable to get it from Morning :S
Click to expand...
Click to collapse
That file is stock firmware inside the zip is a .tot file that can be renamed to .bin and used with lgnpst to bring the phone back to stock. You would need to be able to get into download mode
again. If you do use the g33k3r file you would need to root again then use Freegee app from play store to unlock bootloader and install recovery.

adfurgerson said:
That file is stock firmware inside the zip is a .tot file that can be renamed to .bin and used with lgnpst to bring the phone back to stock. You would need to be able to get into download mode
again. If you do use the g33k3r file you would need to root again then use Freegee app from play store to unlock bootloader and install recovery.
Click to expand...
Click to collapse
Hi,
Now I'm downloading ...
ttp://downloads.codefi.re/thecubed/lgoptimusg/att/firmware/LGE970AT-00-V10o-ATT-US-SEP-29-2012-0.zip
I guess this is original ATT LG E970 Firmware. I will copy it into my external Memory Card and then will insert into phone. After that using TWRP I'll be going to use this Zip file and after that factory reset. Am I correct ? Do I need to follow different steps ?
Let me know. Moreover do I need to unlock Phone again? When I received it was already in Unlocked State. So installing the above link firmware will lock it again? Or should I proceed with the link I posted earlier, I mean this ..
ttp://downloads.codefi.re/g33k3r/LGE970AT-01-V20j-310-410-MAR-08-2013.zip
And Rename File to .bin instead of .tot and Make ZIP it again ?
Please let me know.
PS ; I'm still Downloading The firmware from Ist link.
Regards

milindchitale said:
Get into bootloader by pressing volume up + power key simultaneously. Then press volume down key twice only. Next press power key once.
Rom you downloaded can be verified by search for Stock Rooted rom versio 20j. Hope u get thru ur troubles. Dont forget to press thanks button.
Cheers. Milind
Sent from my LG-E970 using xda app-developers app
Click to expand...
Click to collapse
Hi, I tried these ROMS,
ttp://downloads.codefi.re/g33k3r/LGE970AT-01-V20j-310-410-MAR-08-2013.zip
and downloaded today ..
ttp://downloads.codefi.re/thecubed/lgoptimusg/att/firmware/LGE970AT-00-V10o-ATT-US-SEP-29-2012-0.zip
Both are not working. ON TWRP it is saying ..
MD5 File NOT FOUND
ZIP File Signature VERIFICATION FAILED
Error in Flashing Zip
Please help?
Edit : I also tried Unticking ZIP File Verification. But still it says .. "Error in Flashing Zip"

I did this from the forum @carrett started:
Obtain the following files: AutoLGNPST-tSilenzio.zip (available on IRC or googling), and the firmware (http://forum.xda-developers.com/showthread.php?t=2219953). Unzip AutoLGNPST-tSilenzio.zip and follow the instructions in "READ ME FIRST.txt" (mad props to tSilenzio for automating this process).

pottyvick said:
I did this from the forum @carrett started:
Obtain the following files: AutoLGNPST-tSilenzio.zip (available on IRC or googling), and the firmware (http://forum.xda-developers.com/showthread.php?t=2219953). Unzip AutoLGNPST-tSilenzio.zip and follow the instructions in "READ ME FIRST.txt" (mad props to tSilenzio for automating this process).
Click to expand...
Click to collapse
Hi ..
I have already downloaded the above firmware yesterday. Moreover I'm unable to enter in Download mode as phone is in Recovery Mode in TWRP.

promoking said:
Hi ..
I have already downloaded the above firmware yesterday. Moreover I'm unable to enter in Download mode as phone is in Recovery Mode in TWRP.
Click to expand...
Click to collapse
make sure to download the first file too.... to get to download mode just use twrp's reboot menu... from what i remember it has a reboot to bootloader. From there you can use the volume keys to select Download mode and push the power button to go into it...

pottyvick said:
make sure to download the first file too.... to get to download mode just use twrp's reboot menu... from what i remember it has a reboot to bootloader. From there you can use the volume keys to select Download mode and push the power button to go into it...
Click to expand...
Click to collapse
I tried reboot to boot loader but unfortunately it takes me back to Fast Boot mode (in green Andriod screen) :/
I also tried all options of reboot but no use. Either the phone comes in Fast Boot mode or Power off.

promoking said:
I tried reboot to boot loader but unfortunately it takes me back to Fast Boot mode (in green Andriod screen) :/
I also tried all options of reboot but no use. Either the phone comes in Fast Boot mode or Power off.
Click to expand...
Click to collapse
in fast boot, what happens when you push the volume down button?

Moreover I get following details in Fast boot Home Mode :-
FASTBOOT Mode.
Product_Name : mako
Variant : mako 16gb
HW Version - rev10(88)
Bootloader Version - MAKOZ10f
BaseBand Version - NA
Carrier Info - None
Serial No . - XXXXXXX
SIGNING - production
Secure Boot - Enabled
LOCK State - Unlocked
And above it there is green figure. Above it I have options to get into Recovery Mode. Other than that it I don't have any options to go into Download mode or anything else.

promoking said:
Moreover I get following details in Fast boot Home Mode :-
FASTBOOT Mode.
Product_Name : mako
Variant : mako 16gb
HW Version - rev10(88)
Bootloader Version - MAKOZ10f
BaseBand Version - NA
Carrier Info - None
Serial No . - XXXXXXX
SIGNING - production
Secure Boot - Enabled
LOCK State - Unlocked
And above it there is green figure. Above it I have options to get into Recovery Mode. Other than that it I don't have any options to go into Download mode or anything else.
Click to expand...
Click to collapse
push the volume buttons, it will change the recovery mode to other options... Push the volume buttons on the handset...

pottyvick said:
in fast boot, what happens when you push the volume down button?
Click to expand...
Click to collapse
In fastboot mode when I put Volume - or down button I get options as follows :-
Power Off
Recovery Mode
Restart Bootloader
Start
PS : Sorry for late posting. This forum asks me to WAIT 5 mins, to post next. The moderator need to verify my account. :S

promoking said:
In fastboot mode when I put Volume - or down button I get options as follows :-
Power Off
Recovery Mode
Restart Bootloader
Start
PS : Sorry for late posting. This forum asks me to WAIT 5 mins, to post next. The moderator need to verify my account. :S
Click to expand...
Click to collapse
sorry, you're right... have you tried to manually get into download mode?
Poweroff phone>connect usb cable to phone (not to computer yet)>hold down (both) volume up/volume down>connect usb to computer (while holding down volume buttons)

pottyvick said:
It gives you only those 4 options? there is no other option>?
Click to expand...
Click to collapse
No Sir, I get only these 4 options above that Green Figure.

promoking said:
No Sir, I get only these 4 options above that Green Figure.
Click to expand...
Click to collapse
I edited my comment sorry...

Tab S6 stuck in bootloop, can't get to recovery mode

My Tab S6 tried to auto-install an update yesterday (it is rarely connected to Wifi/internet). It then rebooted. Since then, it's been stuck in a boot loop.
It will display the "Samsung Galaxy Tab S6 | Secured By Knox" logo screen for a few seconds, then switch to the blue "Installing System Update" screen (with the android logo). Installing System Update gets to 28% and stops. Then the rotating icon on the android freezes. Then the device reboots and starts all over again.
Edit: the tablet is 100% stock. It's not been rooted or had any custom ROMs loaded.
I have tried getting to recovery mode, by holding power+volup while it boots. This doesn't seem to change the behavior at all. Any advice is much appreciated.

Fedge7 said:
My Tab S6 tried to auto-install an update yesterday (it is rarely connected to Wifi/internet). It then rebooted. Since then, it's been stuck in a boot loop.
It will display the "Samsung Galaxy Tab S6 | Secured By Knox" logo screen for a few seconds, then switch to the blue "Installing System Update" screen (with the android logo). Installing System Update gets to 28% and stops. Then the rotating icon on the android freezes. Then the device reboots and starts all over again.
Edit: the tablet is 100% stock. It's not been rooted or had any custom ROMs loaded.
I have tried getting to recovery mode, by holding power+volup while it boots. This doesn't seem to change the behavior at all. Any advice is much appreciated.
Click to expand...
Click to collapse
can you shut it down? try volume down and power button ? if it don't shut down, do this soon as it reboots, hold volume up and down and plug in usb cable to desktop/laptop usb port! it will boot into download mode!

N1NJATH3ORY said:
can you shut it down? try volume down and power button ? if it don't shut down, do this soon as it reboots, hold volume up and down and plug in usb cable to desktop/laptop usb port! it will boot into download mode!
Click to expand...
Click to collapse
I can't actually shut it down. If I start holding power+voldown right after it boots, the tablet does reboot before getting stuck at 28%. But it reboots--it doesn't power off.
I tried download mode and that actually seemed to work! Specifically, I left the tablet overnight in the reboot loop until the battery drained. Just now, I held down volup+voldown and plugged it into my laptop. I got the green "Warning/Custom OS" screen and then pressed volup to continue. The tablet rebooted pretty quickly after that (I'm guessing due to low battery) so I didn't get a good look at the download mode options.
Once I'm in download mode, can I factory reset the tablet? I don't need to preserve any data/apps/settings.

Fedge7 said:
I can't actually shut it down. If I start holding power+voldown right after it boots, the tablet does reboot before getting stuck at 28%. But it reboots--it doesn't power off.
I tried download mode and that actually seemed to work! Specifically, I left the tablet overnight in the reboot loop until the battery drained. Just now, I held down volup+voldown and plugged it into my laptop. I got the green "Warning/Custom OS" screen and then pressed volup to continue. The tablet rebooted pretty quickly after that (I'm guessing due to low battery) so I didn't get a good look at the download mode options.
Once I'm in download mode, can I factory reset the tablet? I don't need to preserve any data/apps/settings.
Click to expand...
Click to collapse
You cannot reset the tablet from Download mode afaik- You need to enter Recovery Mode to do that.
You can however, flash stock from Download mode using Odin (3.13.3 is best). If you're not confident with doing that, your best option is Factory Reset in Recovery Mode. Hold Volume Up and Power when the Tablet is booting, let go when you see the Samsung logo. The timing can be tricky, but you should be able to do it. Also, you can force a reboot with Volume Down and Power.
Alternatively, if factory reset doesn't work, since you're completely stock, you will still be covered under warrenty.

bartleby999 said:
your best option is Factory Reset in Recovery Mode. Hold Volume Up and Power when the Tablet is booting, let go when you see the Samsung logo.
Click to expand...
Click to collapse
Thanks for the suggestion. I have tried this many many times. I've tried letting go of the buttons at different times. I've tried holding volup while letting go of power. I've tried this a ton of different ways, and no matter what, the tablet always shows the "Installing system update" screen. Some googling has led me to believe that sometimes, when performing a factory reset, the "Installing system update" screen shows up right before the normal recovery screen. Is it possible that the tablet is trying to get to recovery mode, but can't get past this first step?

Fedge7 said:
Is it possible that the tablet is trying to get to recovery mode, but can't get past this first step?
Click to expand...
Click to collapse
Honestly, I don't know - I'm not an expert but I guess it's possible that the update failed and corrupted both System and Recovery.
You'll be covered under warrenty, so maybe just return the Tablet from where you purchased or direct to Samsung, could take a while given the current situation though I guess. If you have a PC, then I think the best option would be to just flash stock yourself, since that's probably all Samsung will do. Even if that doesn't work you'd still be covered under warrenty, as far as I'm aware attempting to flash stock doesn't trip Knox.

Here is solution to unbrick your device!!!
Fedge7 said:
My Tab S6 tried to auto-install an update yesterday (it is rarely connected to Wifi/internet). It then rebooted. Since then, it's been stuck in a boot loop.
...
Edit: the tablet is 100% stock. It's not been rooted or had any custom ROMs loaded.
I have tried getting to recovery mode, by holding power+volup while it boots. This doesn't seem to change the behavior at all. Any advice is much appreciated.
Click to expand...
Click to collapse
Despair not...I have just come from resolving this exact situation not 30 minutes ago. I'd been trying to flash (using Odin as I decided to stay on Stock and not root this device, for a change) the latest OneUI2.1 releases for my device (SM-T865 - LTE version) and boom in the middle of the Odin update, the flash just failed...I then couldn't reboot and get into neither Recovery, nor Download Mode because it appears my bootloader and recovery both got corrupted.
Here's what you need....
1. Odin app for PC (am on Windows)
2. Your device's Stock firmware (sammobile firmware archive)
3. You will need someone to help you boot the device directly into Download mode (and this is the tricky part because for most of us we are used to get into Bootloader by using the key combination (from Powered Off device) Vol+ and Power On at the same time to get into stock recovery and then scrolling down to option 2 in this menu, "Reboot to Bootloader". Well now you are going to boot directly into Bootloader mode. Here's how you do it...
4. Get your friend to line up the USB-C cable into the port of the device, but DO NOT press it in...yet
5. Press Power off and Vol- buttons at the same time to turn off the device
6. And now you have to to be super fast: if device starts to turn on on its own, YOU press and hold Vol+ and Vol- both at the same time while YOUR FRIEND pushes the USB cable fully into the port - you should now have booted directly into Download mode. (if not repeat this, and remember to be super fast and sync with your friend pushing in the USB cable)...
7. When you get into Download mode, then you are home and dry...
8. Select ONLY the Bootloader file (BL...XX...) in Odin, make sure only "reset time" and "reboot" are ticked, and flash
9. When device reboots, press Vol+ and Power combo to get back into Bootloader mode again...but I think device will reboot into Download mode on its own
10. Now select all the files from your Stock file into the various tabs (BL, CP, CSC, AP...) do not select HOME_CSC as we want to flush this device clean...
11. Flash, and voila...success - you will have lost all your data but rather that than losing the device...
12. Feedback here and let us know if this works? For reference for others in the future...

FYI, I got in this situation, and the previous post did work for me, just takes good timing! Thanks!!!!

Same issue today for me. My tablet showed different screen with green and red text, it allowed me to delete app data, then booted into safe mode, then i had to do factory reset and now i am screwed, as it is refusing to restore any apps and their settings. I will try to flash it back to Android 9, maybe then it will do the restore. I forgot to do any manual backup to SD or so.
Edit: the device upgraded to 10, but reset itself after about 10 minutes of use.
Edit2: i found what caused it. It is caused by Nova Launcher, if i try to set wallpaper.

Just found a news article that there is a RGB/sRGB problem with wallpapers. It might be the problem i had.
I am adding a screenshot of the result.

Yeah, I had that kind of reboot loop from a wallpaper that I downloaded

I can get into download mode. But it kicks me out within a few seconds. Any help please

I have the same problem with a Tab S6 Lite, it is in bootloop and does not let me enter the recovery mode, I can go into download mode and I flashed the latest original firmware Android11, Android10 etc., . I tried them all but always goes in bootloop, and also the bootloop occurs only if I connect the usb cable to the PC, without any sign of life. Do I still have hopes or have I compromised the motherboard?
The reason for all this is because I had followed a guide to give root permissions with magisk, I did everything right, only that the guide was with Android10, while I had Android11 and I was deceived by the fact that in the title of the guide there was written "guide 2021"
, so I did not check the compatibility of operating systems, I was a fool, I know, I hope so much that I did nothing irretrievable, it's my son's tablet!

Genpis said:
I have the same problem with a Tab S6 Lite, it is in bootloop and does not let me enter the recovery mode, I can go into download mode and I flashed the latest original firmware Android11, Android10 etc., . I tried them all but always goes in bootloop, and also the bootloop occurs only if I connect the usb cable to the PC, without any sign of life. Do I still have hopes or have I compromised the motherboard?
The reason for all this is because I had followed a guide to give root permissions with magisk, I did everything right, only that the guide was with Android10, while I had Android11 and I was deceived by the fact that in the title of the guide there was written "guide 2021"
, so I did not check the compatibility of operating systems, I was a fool, I know, I hope so much that I did nothing irretrievable, it's my son's tablet!
Click to expand...
Click to collapse
Did you use HOME CSC or the non HOME CSC when flashing?

Genpis said:
I have the same problem with a Tab S6 Lite, it is in bootloop and does not let me enter the recovery mode, I can go into download mode and I flashed the latest original firmware Android11, Android10 etc., . I tried them all but always goes in bootloop, and also the bootloop occurs only if I connect the usb cable to the PC, without any sign of life. Do I still have hopes or have I compromised the motherboard?
The reason for all this is because I had followed a guide to give root permissions with magisk, I did everything right, only that the guide was with Android10, while I had Android11 and I was deceived by the fact that in the title of the guide there was written "guide 2021"
, so I did not check the compatibility of operating systems, I was a fool, I know, I hope so much that I did nothing irretrievable, it's my son's tablet!
Click to expand...
Click to collapse
Try to install a castom rooted rom which has pre installed also Twrp.
[MAGISK Rom / Firmware base convertor) 420rom-T860/5 - V13.3- CUE1 - ANDROID 10 - OneUI 3.1 - Sec Patch 05/2021 - Released 06/07/2021
WELCOME TO 420 ROM - MAGISK ROM FOR SAMSUNG GALAXY TAB S6 WiFi/4G (T860/5)! 420rom Telegram-Group: Please bear in mind that things will be added as and when my learning and time permits (being a dad with a family and having ADHD myself means...
forum.xda-developers.com
Download the android 11 last rooted rom from there. You install it with odin as as a normal original rom.
Disable in odin auto reboot. After rom install, restart manually and press the correct buttons immediately to boot in Twrp and not to system. Format (not wipe) data from there and reboot to system. If you are lucky it will work..
(I hope you unlocked bootloader before try to root. If you haven't unlocked bootloader this won't work also).

Moe5508 said:
Here is solution to unbrick your device!!!
Despair not...I have just come from resolving this exact situation not 30 minutes ago. I'd been trying to flash (using Odin as I decided to stay on Stock and not root this device, for a change) the latest OneUI2.1 releases for my device (SM-T865 - LTE version) and boom in the middle of the Odin update, the flash just failed...I then couldn't reboot and get into neither Recovery, nor Download Mode because it appears my bootloader and recovery both got corrupted.
Here's what you need....
1. Odin app for PC (am on Windows)
2. Your device's Stock firmware (sammobile firmware archive)
3. You will need someone to help you boot the device directly into Download mode (and this is the tricky part because for most of us we are used to get into Bootloader by using the key combination (from Powered Off device) Vol+ and Power On at the same time to get into stock recovery and then scrolling down to option 2 in this menu, "Reboot to Bootloader". Well now you are going to boot directly into Bootloader mode. Here's how you do it...
4. Get your friend to line up the USB-C cable into the port of the device, but DO NOT press it in...yet
5. Press Power off and Vol- buttons at the same time to turn off the device
6. And now you have to to be super fast: if device starts to turn on on its own, YOU press and hold Vol+ and Vol- both at the same time while YOUR FRIEND pushes the USB cable fully into the port - you should now have booted directly into Download mode. (if not repeat this, and remember to be super fast and sync with your friend pushing in the USB cable)...
7. When you get into Download mode, then you are home and dry...
8. Select ONLY the Bootloader file (BL...XX...) in Odin, make sure only "reset time" and "reboot" are ticked, and flash
9. When device reboots, press Vol+ and Power combo to get back into Bootloader mode again...but I think device will reboot into Download mode on its own
10. Now select all the files from your Stock file into the various tabs (BL, CP, CSC, AP...) do not select HOME_CSC as we want to flush this device clean...
11. Flash, and voila...success - you will have lost all your data but rather that than losing the device...
12. Feedback here and let us know if this works? For reference for others in the future...
Click to expand...
Click to collapse
Why flashing only the bootloader first? At the moment I'm trying to recover my s20 fe from a bootloop without losing my data
sosimple said:
Try to install a castom rooted rom which has pre installed also Twrp.
[MAGISK Rom / Firmware base convertor) 420rom-T860/5 - V13.3- CUE1 - ANDROID 10 - OneUI 3.1 - Sec Patch 05/2021 - Released 06/07/2021
WELCOME TO 420 ROM - MAGISK ROM FOR SAMSUNG GALAXY TAB S6 WiFi/4G (T860/5)! 420rom Telegram-Group: Please bear in mind that things will be added as and when my learning and time permits (being a dad with a family and having ADHD myself means...
forum.xda-developers.com
Download the android 11 last rooted rom from there. You install it with odin as as a normal original rom.
Disable in odin auto reboot. After rom install, restart manually and press the correct buttons immediately to boot in Twrp and not to system. Format (not wipe) data from there and reboot to system. If you are lucky it will work..
(I hope you unlocked bootloader before try to root. If you haven't unlocked bootloader this won't work also).
Click to expand...
Click to collapse
Any tips in recovering my stock s20 fe from a bootloop without losing data? already tried Odin but without success the first try
jointer said:
Same issue today for me. My tablet showed different screen with green and red text, it allowed me to delete app data, then booted into safe mode, then i had to do factory reset and now i am screwed, as it is refusing to restore any apps and their settings. I will try to flash it back to Android 9, maybe then it will do the restore. I forgot to do any manual backup to SD or so.
Edit: the device upgraded to 10, but reset itself after about 10 minutes of use.
Edit2: i found what caused it. It is caused by Nova Launcher, if i try to set wallpaper.
Click to expand...
Click to collapse
did you managed to not lose your data?

jrdef said:
Any tips in recovering my stock s20 fe from a bootloop without losing data? already tried Odin but without success the first try
Click to expand...
Click to collapse
Wiping cache partition in Recovery and reflashing the firmware are basically your only 2 options

jrdef said:
Any tips in recovering my stock s20 fe from a bootloop without losing data? already tried Odin but without success the first try
Click to expand...
Click to collapse
Flash in odin the same rom you had. There are 2 csc files in rom, which you use 1 in odin one. Try use the "home csc". Home csc keep KEEPS your data. If you're lucky it may work. (It would work in keeping your data 100% if your rom was ok. Because it isn't you have some changes to work.).
You must try with same rom or newer.
CSC – If you flash the CSC file, it’ll perform a factory reset of your Galaxy device and wipe all data while installing a new firmware to bring your device to the same state as it was when you purchased it. Go with CSC if you want a clean installation.
HOME_CSC – On the other hand, if you want to keep your Samsung phone’s data and settings even flashing the stock firmware, you can select the HOME_CSC file.

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