Question Clearing cache partition - Samsung Galaxy S21 Ultra

I cannot boot in to recovery mode. Volume up & power key won't work (cable is not helping). Any idea?

Timing is everything. Relax... I hit reboot and once the screen flashes off hold the volume up button until the menu comes up.

Won't work. I did try this so many times.

Try this:
Power down the smartphone.
Then wait a few seconds for it to completely shut down. ...
Now press and hold the Power and Volume Up buttons at the same time.
And continue holding these two buttons down even after the Galaxy S21 starts to boot back up.

Not working... I don't know what is wrong.

prfraczek said:
Not working... I don't know what is wrong.
Click to expand...
Click to collapse
Unplug the cable if you haven't.
Did you toggle on Developer options?
Try turn it off.

Turned developer options off still no luck. Weird.

If your timing is off with the button push it will do that. Sometimes it takes one time, sometimes 2 or 3. Don't power off; hit restart. Before it starts to boot have the volume up button depressed.

LADB is so much easier for stuff like this if unrooted. once setup properly, just issue out
Code:
reboot recovery

I gave up. I am going to shi...y Samsung Store tomorrow to do this. It is unbelievable. All my browsers lags and I cannot simply clear a cache. Every day I am regretting swap from 1+8 pro. I thought Samsung changed since I had s8 but no - it is even more laggy, bloated. They do and sell the best hardware but simply have no clue about software optimisation. Thanks all for help

I can assure that clearing cache partition will have zero impact to your issues.
Why are you so certain the cache partition is the answer?

skymera said:
I can assure that clearing cache partition will have zero impact to your issues.
Why are you so certain the cache partition is the answer?
Click to expand...
Click to collapse
Saying it won't work is impossible to predict. If it does work, and many times it does, the issue is gone... a cheap but good trick.
Clearing the system cache is part of the light maintenance I do or when odd behavior occurs.

skymera said:
I can assure that clearing cache partition will have zero impact to your issues.
Why are you so certain the cache partition is the answer?
Click to expand...
Click to collapse
I'd like to do this before wiping whole phone and re-setup 20x2FA authenticators. It can be dns, webview and much more. So I believe it is good idea start from clearing cache partition

I couldn't get it to work either, until I had the usb cable connected to my laptop - then it was able to boot in to recovery mode and let me clear the cache.
I tried it just with the cable in the phone, the cable in the charger and the phone, no cable and the only way it worked was with the cable connected to laptop and phone with the laptop powered on.
Odd!

heartyparty said:
I couldn't get it to work either, until I had the usb cable connected to my laptop - then it was able to boot in to recovery mode and let me clear the cache.
I tried it just with the cable in the phone, the cable in the charger and the phone, no cable and the only way it worked was with the cable connected to laptop and phone with the laptop powered on.
Odd!
Click to expand...
Click to collapse
That's very strange behavior.
Maybe a firmware, C port PCB or mobo issue.
Keep an eye on it... no likey.

Try this:
Power down the smartphone.
Connect the phone with PC or laptop via USB cable OR while your phone is closed connect a type c USB memory stick.
Now press first Volume Up button and then the Power button (don't leave the Volume Up button)
And continue holding these two buttons down even after the Galaxy S21 starts to boot up.
You will see the recovery options to your screen.

miltos74 said:
Try this:
Power down the smartphone.
Connect the phone with PC or laptop via USB cable OR while your phone is closed connect a type c USB memory stick.
Now press first Volume Up button and then the Power button (don't leave the Volume Up button)
And continue holding these two buttons down even after the Galaxy S21 starts to boot up.
You will see the recovery options to your screen.
Click to expand...
Click to collapse
This did the trick. Thank you so much for it. Even more, chrome lag gone!

prfraczek said:
This did the trick. Thank you so much for it. Even more, chrome lag gone!
Click to expand...
Click to collapse
I'm happy for helping my friend. Have a nice day.

blackhawk said:
Try this:
Power down the smartphone.
Then wait a few seconds for it to completely shut down. ...
Now press and hold the Power and Volume Up buttons at the same time.
And continue holding these two buttons down even after the Galaxy S21 starts to boot back up.
Click to expand...
Click to collapse
is the button working when the phone is on?

flairepathos.info said:
is the button working when the phone is on?
Click to expand...
Click to collapse
What do you mean?
Only the power button is active at all times.
The volume up/down inputs are only active when as/after the phone is/has been powered on.

Related

[Q] Broken power button / how to boot without

Hello everyone
I own a Samsung ACE S5830. Recently the power button stopped working -- which was annoying, but I could live with. I just wouldn't lock the phone manually.
But now, finally, the thing I feared has happened: I let the battery run down.
My question is, of course: Is there any way to boot the phone other than the power button? Perhaps over USB?
Should the phone show up in adb devices's list, even if it is off? Because it doesn't, but I may be doing something wrong.
I am out of warranty -- so I'll have to get the phone serviced. Is it worth it, or should I just buy a new device?
Thanks a lot for your help.
Sorry to reply to myself.
Just wanted to let you know I suceeded in booting the thing. I don't really know how -- just hitting random keys while removing and re-inserting the battery, connected to usb.
I am starting to wonder if perhaps the power button does at least partially work -- any way I could test it? Obviously it doesn't perform normally, that is, not locking, booting, holding to get the shutdown menu, etc.
Dttri said:
Sorry to reply to myself.
Just wanted to let you know I suceeded in booting the thing. I don't really know how -- just hitting random keys while removing and re-inserting the battery, connected to usb.
I am starting to wonder if perhaps the power button does at least partially work -- any way I could test it? Obviously it doesn't perform normally, that is, not locking, booting, holding to get the shutdown menu, etc.
Click to expand...
Click to collapse
Hey!
If you can enter to DOWNLOAD mode(hold together 3 buttons[HOME+POWER+VOL DOWN]), then its probably working.
CHEERS!
Maybe this will be the solution:
1. Hold Home button
2. Connect to usb (or charger) still holding Home button
3. When in recovery menu, unplug usb
4. Select reboot system now
5. Succes?
Sonic0509 said:
Maybe this will be the solution:
1. Hold Home button
2. Connect to usb (or charger) still holding Home button
3. When in recovery menu, unplug usb
4. Select reboot system now
5. Succes?
Click to expand...
Click to collapse
Just created an account to say THANK YOU! YOU SAVED ME!
use adb reboot reboot commands
with adb you can start shut down download mode etc without touching phone
Sent from my GT-S5830 using xda premium
Well, my power button also kind of stopped working just recently, but if I press it really hard, it works Might be same for you.. However, it's still very annoying..
Sonic0509 said:
Maybe this will be the solution:
1. Hold Home button
2. Connect to usb (or charger) still holding Home button
3. When in recovery menu, unplug usb
4. Select reboot system now
5. Succes?
Click to expand...
Click to collapse
This is a nice way thankx.
Sent from my GT-S5830 using Tapatalk
mandarinai said:
Well, my power button also kind of stopped working just recently, but if I press it really hard, it works Might be same for you.. However, it's still very annoying..
Click to expand...
Click to collapse
Thx for your help!

Power button is broken? How to reboot to download?

Power everything was working this morning
Noticed that my power button wasn't working...the screen stayed on. Pulled battery, put it back in and the phone booted without pressing power.
Was like "wtf?"
When it booted, I couldn't turn off the screen.
So I just left the battery out and took it home.
Put a new rom on phone, thought "This will fix it."
Wrong.
Had to flash using Rom Manager because in recovery the power button doesn't respond.
When it began to boot "AT&T Screen" wouldn't disappear and show me some Doc's v4.
I can manipulate it to boot into recovery but the power button doesn't work still.
I can NOT get it to go into recovery.
Can someone helps me?
bunnsguy said:
Power everything was working this morning
Noticed that my power button wasn't working...the screen stayed on. Pulled battery, put it back in and the phone booted without pressing power.
Was like "wtf?"
When it booted, I couldn't turn off the screen.
So I just left the battery out and took it home.
Put a new rom on phone, thought "This will fix it."
Wrong.
Had to flash using Rom Manager because in recovery the power button doesn't respond.
When it began to boot "AT&T Screen" wouldn't disappear and show me some Doc's v4.
I can manipulate it to boot into recovery but the power button doesn't work still.
I can NOT get it to go into recovery.
Can someone helps me?
Click to expand...
Click to collapse
have ODIN open, and battery removed from phone... hook up usb, hold both vol keys, while inserting battery... you should get download mode fine even with a busted power button... what you do next is up to u....
Once more, I can NOT get it to boot into recovery in that fashion.
I cannot place batter in the phone without it attempting to boot
(doesn't not get past the AT&T boot screen)
I cannot plug it up, hold volume buttons and then put in battery because it will just charge. If I unplug the phone, the phone still thinks it's charging actually.
My question really is Can I 'fix' the power button, or can I reboot it into download mode through command propt? I've never used ADB to access my phone, so that'll be new.
bunnsguy said:
Once more, I can NOT get it to boot into recovery in that fashion.
I cannot place batter in the phone without it attempting to boot
(doesn't not get past the AT&T boot screen)
I cannot plug it up, hold volume buttons and then put in battery because it will just charge. If I unplug the phone, the phone still thinks it's charging actually.
My question really is Can I 'fix' the power button, or can I reboot it into download mode through command propt? I've never used ADB to access my phone, so that'll be new.
Click to expand...
Click to collapse
Dude... recovery is useless right now, you have a busted power button... and because of 'said busted power button', none of what you're trying to do is going to work... like youve said...
You are down to trying to force download mode with USB cord, holding the vol keys, and inserting the battery... ADB cannot run commands to a phone stuck at the boot screen... Thread title says, how to reboot to download, and with the button like it is, all you can do is what i've posted...
As to fixing the power button, i don't see why that's not possible... do u feel it press at all?
B-Naughty said:
As to fixing the power button, i don't see why that's not possible... do u feel it press at all?
Click to expand...
Click to collapse
Yeah, it 'presses' and 'clicks'. I mean it worked most of the day, it got low on power and it just quit working.
Any luck forcing download by puttin the battery in while the usb is hooked up with the vol keys pressed in?
I was having the same problem with my power button and eventually the power button stopped working completely even though i could still hear it click. I sent it to mobiletechvideos and they fixed it really fast and it was a great price.
Here's the link: http://mobiletechvideos.mybigcommerce.com/samsung-captivate-power-button-repair/
B-Naughty said:
Any luck forcing download by puttin the battery in while the usb is hooked up with the vol keys pressed in?
Click to expand...
Click to collapse
goes into boot-loop like if I were holding the volume up/down and the power together. That's what doesn't make sense.
j.curtis.369 said:
I was having the same problem with my power button and eventually the power button stopped working completely even though i could still hear it click. I sent it to mobiletechvideos and they fixed it really fast and it was a great price.
Here's the link: http://mobiletechvideos.mybigcommerce.com/samsung-captivate-power-button-repair/
Click to expand...
Click to collapse
And I could buy another used Captivate for $50. I have an upgrade in less than 3 weeks and this happens
It happened to me once before after flashing a bad kernel. I just did what B-Naughty had suggested. Remove battery -> plug in USB -> hold both volume buttons --> then insert battery. Put me right in download mode and Odin it back with a working power button. Unless it's really a hardware problem, then you're out of luck...
bunnsguy said:
And I could buy another used Captivate for $50. I have an upgrade in less than 3 weeks and this happens
Click to expand...
Click to collapse
Oh in that case imo i would get another used captivate and wait for the sgs 3
Maybe if I went to a store and sucked up to them they'd let me upgrade a month early (especially since I was initially supposed to upgrade in October)
Might be down to getting/making a USB jig if it don't come up... but if you upgrade to gs2, the jig will work for that model as well so won't be wasted...
B-Naughty said:
Might be down to getting/making a USB jig if it don't come up... but if you upgrade to gs2, the jig will work for that model as well so won't be wasted...
Click to expand...
Click to collapse
Maybe a jig would work. But easier, funner solution is adding a line for a Moto Atrix 1 for just a penny plus the $36 fee. Problem solved. Thanks for the help for what could just be a hardware failure. I'll upgrade my other line later when the SGS 3 comes out

Is my note 9 bricked?

Hello everybody,
First of all, please forgive my time to time poor english. I tried to fill in my presentation and hope it's ok.
I also want to thanks all the developpers that make a great job to optimise and/or improve stock roms and to help people like me that are not so good in developping.
Let me explain my problem :
I've just bought the Samsung note 9 SM-N960F/DS I was dreaming of.
when I put my sim card inside (a french one) he went on a firmware update, and my phone changed for a french CSC (XEF). Thus, I losed some functions I like, such as SpO2 measure in Samsung Health (I know, it's not so important but...). I couldn't also force the sound in earplugs when phone whas ringing, even by using "Soundabout apk" that was working with my note 4....
I don't know why Samsung changes the available functions regarding the country as we pay the same price for in fact a bunch of functions !!!
I tried to come back to the initial CSC, by flashing an official rom, and following a tutorial on XDA site explaining how to do without rooting, using combination files.
But I certainly made an error as my phone has restarted in a curious mode named "kernel panic upload mode" that I cannot escape. It's impossible to go back to download mode, even with combo like vol down + start button, or other combinations of buttons.
This phone wasn't rooted and i'm afraid now as I don't know how to flash a working rom on it. Whem I use Odin, the flashin fails at beginnig (at setup connection step).
Does somebody have an idea or a solution to fix this phone?
I join some picture of the current state.
Thanks for your answers
Azur26
Are you able to get into recovery mode using the button combo?
enzyne said:
Are you able to get into recovery mode using the button combo?
Click to expand...
Click to collapse
Hello Enzyne,
Thanks for your help !
I tried Vol up + Bixby + start, vol down + bixby + start, vol up + start, vol down + start, vol up + vol down + start, but nothing works.
I can't go back to recovery mode nor to download mode...
Odin says "added" but can't setup connection...
Have you flashed with this PC before using Odin? Can you possibly try another PC? Maybe different USB cables just to eliminate possibilities.
enzyne said:
Have you flashed with this PC before using Odin? Can you possibly try another PC? Maybe different USB cables just to eliminate possibilities.
Click to expand...
Click to collapse
I used stock cable, given with the phone.
I gonna try with another one, and on anotehr PC... Maybe will I be lucky... But i'm not optimitic...
It could be that the drivers are no good. It is also possible that you may need a warranty exchange. I'm not aware of any other boot-loader level recovery process besides odin. Maybe even try another version of odin that is known to work with our note 9.
enzyne said:
It could be that the drivers are no good. It is also possible that you may need a warranty exchange. I'm not aware of any other boot-loader level recovery process besides odin. Maybe even try another version of odin that is known to work with our note 9.
Click to expand...
Click to collapse
Thanks for your help Enzyne,
Other cable/PC didn't work...
Gonna try with other odin !
azur26 said:
Thanks for your help Enzyne,
Other cable/PC didn't work...
Gonna try with other odin !
Click to expand...
Click to collapse
Other odin doesn't work :crying:
even with updated samsung drivers... :crying::crying::crying:
The Kernel Panic Upload Mode doesn't prevent the phone from booting to Recovery.
1. Make sure your phone is completely powered off.
2. Press and hold the Bixby button and the Volume up button.
3. Press and hold the Power button. At this point you should be holding down three buttons. Don't let these go until you see the Recovery screen pop up.
That's really all there is to it. If you have a case that goes over your buttons it's possible you aren't pressing down hard enough for one or more of the buttons to register.
Chaos Residue said:
The Kernel Panic Upload Mode doesn't prevent the phone from booting to Recovery.
1. Make sure your phone is completely powered off.
2. Press and hold the Bixby button and the Volume up button.
3. Press and hold the Power button. At this point you should be holding down three buttons. Don't let these go until you see the Recovery screen pop up.
That's really all there is to it. If you have a case that goes over your buttons it's possible you aren't pressing down hard enough for one or more of the buttons to register.
Click to expand...
Click to collapse
Not to nit-pick,but,when the phone is fully powered down,the simultaneous 3-button push can be released as soon as you see the Note 9 splash screen & the recovery screen should pop-up within a few seconds.
Only reason I mention it is possibly the OP is experiencing issues by holding one or more of the buttons in too long,(just spit-ballin' here on this point)............
KOLIOSIS said:
Not to nit-pick,but,when the phone is fully powered down,the simultaneous 3-button push can be released as soon as you see the Note 9 splash screen & the recovery screen should pop-up within a few seconds.
Only reason I mention it is possibly the OP is experiencing issues by holding one or more of the buttons in too long,(just spit-ballin' here on this point)............
Click to expand...
Click to collapse
Hi Koliosis, and thanks for your help.
In fact, I even cannot power down the phone !!!
The only thing he does except showing kernel panic is to quickly flash on samsung splash screen when I push together vol down and power button, before to go back on panic kernel screen:crying:
No splash screen with bixby + vol up + power buttons combo...
The problem came after a failed flash with combined files (the good ones for my phone, I verified...)
Is there another way to reinitialise the phone except via Odin or Smart switch?
azur26 said:
Hi Koliosis, and thanks for your help.
In fact, I even cannot power down the phone !!!
The only thing he does except showing kernel panic is to quickly flash on samsung splash screen when I push together vol down and power button, before to go back on panic kernel screen:crying:
No splash screen with bixby + vol up + power buttons combo...
The problem came after a failed flash with combined files (the good ones for my phone, I verified...)
Is there another way to reinitialise the phone except via Odin or Smart switch?
Click to expand...
Click to collapse
You got me there, I haven't used ODIN since the Note 5 days, LOL. (FWIW, I boot to recovery for cache wipe, otherwise, that's as deep as I've gotten into a Samsung device for quite some time).
Sent from my SM-N960U using XDA Labs
KOLIOSIS said:
You got me there, I haven't used ODIN since the Note 5 days, LOL. (FWIW, I boot to recovery for cache wipe, otherwise, that's as deep as I've gotten into a Samsung device for quite some time).
Sent from my SM-N960U using XDA Labs
Click to expand...
Click to collapse
I think it won't be enough in my case...
Thanks Koliosis to have answered
azur26 said:
I think it won't be enough in my case...
Thanks Koliosis to have answered
Click to expand...
Click to collapse
Oh, I know, LOL, a cache wipe definitely isn't a cure all. :laugh:
Good luck in getting back up & running soon.
Sent from my SM-N960U using XDA Labs
KOLIOSIS said:
Oh, I know, LOL, a cache wipe definitely isn't a cure all. :laugh:
Good luck in getting back up & running soon.
Sent from my SM-N960U using XDA Labs
Click to expand...
Click to collapse
I cross all I can !!!:fingers-crossed::fingers-crossed::fingers-crossed:
To get the Note 9 into download mode, do the following:
Turn the device off. Hold the volume down and Bixby button together and then plug in your USB cable that is attached to your PC. Your phone should go into download mode.
As this requires the phone to be off, you may get lucky once the battery runs out of charge.
Good luck
Sent from my SM-N960F using Tapatalk
KOLIOSIS said:
Not to nit-pick,but,when the phone is fully powered down,the simultaneous 3-button push can be released as soon as you see the Note 9 splash screen & the recovery screen should pop-up within a few seconds.
Only reason I mention it is possibly the OP is experiencing issues by holding one or more of the buttons in too long,(just spit-ballin' here on this point)............
Click to expand...
Click to collapse
I've never had an issue with holding the buttons too long, but I have had an issue with not holding them long enough. I let go of the buttons as soon as the Recovery screen comes up and I haven't once had an issue with that. I think he'd have to hold the buttons for several seconds past the Recovery screen booting up before this caused an issue.
azur26 said:
Hi Koliosis, and thanks for your help.
In fact, I even cannot power down the phone !!!
The only thing he does except showing kernel panic is to quickly flash on samsung splash screen when I push together vol down and power button, before to go back on panic kernel screen:crying:
No splash screen with bixby + vol up + power buttons combo...
The problem came after a failed flash with combined files (the good ones for my phone, I verified...)
Is there another way to reinitialise the phone except via Odin or Smart switch?
Click to expand...
Click to collapse
Okay, now we're on the same page. You have to be FAST with this.
1. Plug in a charging cable. This will give you the LED charging indicator on your phone.
2. Hold Power+Bixby until the charging indicator turns off. Once the charging indicator turns off you have to be VERY quick with step 3.
3. Press and hold Power+Bixby+Volume Up until you see the Recovery screen.
I was stuck in a bootloop after installing a Magisk module, and this happened to me as well. Every time I would power the phone down it wouldn't stay powered down. I had to be very fast to get into Recovery. It took me a couple of tries to press and hold the buttons quickly enough. That was partially because the case on my phone made pressing the buttons a bit more difficult.
Painman1963 said:
To get the Note 9 into download mode, do the following:
Turn the device off. Hold the volume down and Bixby button together and then plug in your USB cable that is attached to your PC. Your phone should go into download mode.
As this requires the phone to be off, you may get lucky once the battery runs out of charge.
Good luck
Sent from my SM-N960F using Tapatalk
Click to expand...
Click to collapse
Chaos Residue said:
I've never had an issue with holding the buttons too long, but I have had an issue with not holding them long enough. I let go of the buttons as soon as the Recovery screen comes up and I haven't once had an issue with that. I think he'd have to hold the buttons for several seconds past the Recovery screen booting up before this caused an issue.
Okay, now we're on the same page. You have to be FAST with this.
1. Plug in a charging cable. This will give you the LED charging indicator on your phone.
2. Hold Power+Bixby until the charging indicator turns off. Once the charging indicator turns off you have to be VERY quick with step 3.
3. Press and hold Power+Bixby+Volume Up until you see the Recovery screen.
I was stuck in a bootloop after installing a Magisk module, and this happened to me as well. Every time I would power the phone down it wouldn't stay powered down. I had to be very fast to get into Recovery. It took me a couple of tries to press and hold the buttons quickly enough. That was partially because the case on my phone made pressing the buttons a bit more difficult.
Click to expand...
Click to collapse
Thanks to you both
Doesn't work as well :crying:
Is there another way to force connection with the PC in order to flash a rom again? Another "magic" application like odin but more powerfull?
The only thing that im aware of is very legacy like QPST. Im not sure if QPST is able to handle the newer phones tho. You can definitely ruin your phone with it too.
Hi again Enzyme
I looked on Google for QPST. But it seems it's only for Qualcom powered phones... mine is Exynos powered. ..

Question Recovery Hell

My friend has an S21 Ultra 5G with the Exynos SoC. There's an app that constantly crashes, Samsung Audio Remote, that he NEEDS to control the volume on his sound bar because he's handicapped and can not use a physical remote. After a total of 3 HOURS on the phone with Samsung support, the next step and alleged solution is to wipe the cache partition. But I can not get I to recovery. The procedure support told me to use, that I tried 3 times while they were on the phone, did not work. Now, I'm no tech god, but I have successfully flashed dozens of roms on several devices over the years, including 4 Samsung Galaxy devices, so I know a thing or two about pressing buttons in the right sequence. But, this S21 is kicking my tail. It's sooooo much is a trainwreck that I have decided that Samsung does NOT want my money, so I'll be happy to never give them a penny more. But. My friend has this $1000 turd so he's got to get it figured out. So. Please. How do I get into recovery so I can wipe the cache partition on this pile of junk?
Build number is G998BXXU2AUBB.
As a side, this problem exists on his S21, my Moto G Stylus, and his Galaxy Tab tablet, but it does NOT exist on his LG Stylo 3, so I'm pretty confident that even wiping the recovery partition will not solve the problem, but if you've ever dealt with tech support, you know that until you do the next useless troubleshooting step, they won't move on to try to actually solve the issue. So, I gotta do it.
Turn off the device.
Then boot with both the power button and the volume up button pressed (and hold them) until the phone boots to recovery.
Skander1998 said:
Turn off the device.
Then boot with both the power button and the volume up button pressed (and hold them) until the phone boots to recovery.
Click to expand...
Click to collapse
In my experience this only works if the phone is turned off and connected by a USB-cable to a computer. If it doesn't sense the cable connected it will just boot to normal Android OS.
fdomi said:
In my experience this only works if the phone is turned off and connected by a USB-cable to a computer. If it doesn't sense the cable connected it will just boot to normal Android OS.
Click to expand...
Click to collapse
Ya... You need to connect a cable for it to work!
Sukrith said:
Ya... You need to connect a cable for it to work!
Click to expand...
Click to collapse
It's funny that several websites forget to mention this, they just write about the key combination and rebooting, but without the cable being connected to the PC it won't boot to recovery.
on most devices you dont actually need the cable connected first and some devices do weird stuff like turn on when you plug them in. They probably dont have the actual device.
sesnut said:
on most devices you dont actually need the cable connected first and some devices do weird stuff like turn on when you plug them in. They probably dont have the actual device.
Click to expand...
Click to collapse
Yes, yet they inform and post the key combination as if they have tried it themselves.
You needs to connect to PC to reboot to recovery along with combo key started from Android R on Samsung devices. On older os it doesn't requires
dr.ketan said:
You needs to connect to PC to reboot to recovery along with combo key started from Android R on Samsung devices. On older os it doesn't requires
Click to expand...
Click to collapse
Actually you don't need to connect the cable to a PC...the cable has to be connected to a power source. I booted to recovery with the cable connected to my power bank..
amirage said:
Actually you don't need to connect the cable to a PC...the cable has to be connected to a power source. I booted to recovery with the cable connected to my power bank..
Click to expand...
Click to collapse
Power isn't important, storage is
Wall mount power won't work, power bank, usb storage will do.
amirage said:
Actually you don't need to connect the cable to a PC...the cable has to be connected to a power source. I booted to recovery with the cable connected to my power bank..
Click to expand...
Click to collapse
I tried that and it didn't work for me, I actually needed to boot into a PC, or maybe it doesn't work with simple slow charge USB? I will play with this to see if it works with another power source.
fdomi said:
I tried that and it didn't work for me, I actually needed to boot into a PC, or maybe it doesn't work with simple slow charge USB? I will play with this to see if it works with another power source.
Click to expand...
Click to collapse
Try any usb storage if you have, it will work. It doesn't need power.
Even usb c headphones will work

Question Recovery mode

Anybody know how to go into the recovery mode , since i was unable to do it by the usual way ? S21 ultra exy
Lots of articles online and YouTube videos..LSS..you need to connect your phone to a USB storage (preferably a computer)..power off completely...restart pressing power and volume down...you should be recovery
amirage said:
Lots of articles online and YouTube videos..LSS..you need to connect your phone to a USB storage (preferably a computer)..power off completely...restart pressing power and volume down...you should be recovery
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Sorry to correct you, but it's power and volume UP ! not down! Of course what's important is to have the phone connected via USB cable to a PC, or pen drive, power bank etc, otherwise it will just boot to normal Android OS.
fdomi said:
Sorry to correct you, but it's power and volume UP ! not down! Of course what's important is to have the phone connected via USB cable to a PC, or pen drive, power bank etc, otherwise it will just boot to normal Android OS.
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Thanks...I meant to write volume up but I was screaming at some to put their music volume "down"...down and up got mixed up...heehhe...the perils of multitasking!
fdomi said:
Sorry to correct you, but it's power and volume UP ! not down! Of course what's important is to have the phone connected via USB cable to a PC, or pen drive, power bank etc, otherwise it will just boot to normal Android OS.
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Why on samsung an additional step ( to connect to usb) required ?
All others can open recovery with buttons itself
aj7400 said:
Why on samsung an additional step ( to connect to usb) required ?
All others can open recovery with buttons itself
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Bureaucracy, red tape name it what you like... Samsung just wanted to make our lives more miserable..
amirage said:
Bureaucracy, red tape name it what you like... Samsung just wanted to make our lives more miserable..
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Still we buy it ,
why ?
aj7400 said:
Still we buy it ,
why ?
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Ahh...the philosophical question...the answer to this can be found in the famous quote by Confucius, "Never raise hands to angry child, it leave groin exposed." Who is who in this quote is best left to interpretation!
amirage said:
Ahh...the philosophical question...the answer to this can be found in the famous quote by Confucius, "Never raise hands to angry child, it leave groin exposed." Who is who in this quote is best left to interpretation!
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Came back from cricket , still have the groin guard ,
Come on baby
aj7400 said:
Came back from cricket , still have the groin guard ,
Come on baby
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Please do hit like if I put a smile on your face!
Thankyou guys
fdomi said:
Sorry to correct you, but it's power and volume UP ! not down! Of course what's important is to have the phone connected via USB cable to a PC, or pen drive, power bank etc, otherwise it will just boot to normal Android OS.
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Still cant boot into recovery , do i need to use the original cable ?
iamcgs said:
Still cant boot into recovery , do i need to use the original cable ?
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Not necessarily, any USB-C to USB-A cable should work. Make sure the phone is completely switched off. You need to press vol up+power for some time until the Samsung splash screen changes to the recovery mode.
amirage said:
Not necessarily, any USB-C to USB-A cable should work. Make sure the phone is completely switched off. You need to press vol up+power for some time until the Samsung splash screen changes to the recovery mode.
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It only boot to system . Try it a couple times already
iamcgs said:
It only boot to system . Try it a couple times already
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Is this of any help:
Have you enabled developer mode and you have it set up for USB debugging already? If so you can use the ADB command line to restart your phone by issuing the following from a command prompt in the directory you installed ADB/Fastboot or anywhere if you put them in your path variable -- "ADB reboot recovery"
If you're not having any luck with that, you may need to reset (NOT factory reset, that will wipe everything) press and hold the volume down key and the bixby/power key and hold them for a 15 second count, even when the device powers off. This combination will power it off no matter what. After the slow count of 15, release the keys, plug in your USB cable, and press and hold power/volume up key as the previous posters instructed you - until the phone starts and you see the logo - this should boot you into recovery mode as well.
Is your phone booting into the system? If so, a 3rd option you may avail yourself of is an restarting app for non-rooted devices such as Shutdown, there are several, read the descriptions and pick your poison from the Google play store (If you're running a stock device make sure the app you choose doesn't require root) it will however, require you to grant accessibility permissions - full control of device and SHUTDOWN in order to function - and that will give you the option to reboot to recovery mode.
Good Luck, L4XS

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