boot bootloader bricks it? - Samsung Galaxy Z Fold 2 Questions & Answers

I booted the fold Z into recovery and then pressed boot bootloader and the phone shut down and now won`t power up.
Anyone know what is happening?
Okay, I pressed volume up and volume down plus power button and it eventually booted into bootloader mode

To get to bootloader, from off hold up and down volume and plug in USB cable. Hit up volume when requested and you're good to go...
This seems to be the standard on all Samsung devices now...

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Boot loader issue

Hi all here is what I have done so far with my phone. It is rooted and have oneclick recovery flashed as well. My question is after i flashed recovery and get the s/w screen let go of the volume keys then inserted battery hold down volume down and the power button it gets me to the recovery screen but after I let go of the power button the phone automatically starts up and goes out of recovery...any ideas y? thank you
*FIXED*
It appears I was holding the power button down to long figured it out!!!

Phone stuck in bootloop, can't boot into fastboot or recovery, Please help

After trying to flash a TBO calendar/calculator inverted app I rebooted from recovery only to now be stuck in a bootloop. The only thing the phone will do is begin to reboot itself if I press all three buttons to "hard restart". (power+vol up+vol dwn). Tried using adb/fastboot to reboot into recovery or bootloader but I don't think that the phone is far enough into the boot process to be recognized by adb/fastboot because typing adb reboot-bootloader just returns "waiting on devices". I have also tried to use power+ vol dwn combo to reboot to bootloader. I have noticed that this only works for stock and other certain ROM's. It's a hit and miss as to why this occurs.
So right now I am stuck in a perpetual bootloop with no way to get to recovery or bootloader. I don't know of any other way of getting into recovery to restore a nanroid. Any one have a good suggestion? Please!
The combination of power + volume up (for like 10 or so seconds) will force a reboot. As SOON as it reboots you just need to hold volume down to get into bootloader.
Similar Issue...
cntryby429 said:
The combination of power + volume up (for like 10 or so seconds) will force a reboot. As SOON as it reboots you just need to hold volume down to get into bootloader.
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I'm having the same exact problem, I figured out the volume up + power, turns the phone back on in a hardboot. But, exactly how long do you need to hold the volume down button for once it's rebooting?? I just got a replacement phone on 9/24, my previous phone had no problem with this & had the option of fast boot in the settings. Just rebooting my phone takes FOREVER to turn on (or so it seems in comparison). Any idea how or why this is now? Is it due to an update, can I uninstall the update to go back to a fast start setting?? Thanks!!
M-FayeHTC said:
I'm having the same exact problem, I figured out the volume up + power, turns the phone back on in a hardboot. But, exactly how long do you need to hold the volume down button for once it's rebooting?? I just got a replacement phone on 9/24, my previous phone had no problem with this & had the option of fast boot in the settings. Just rebooting my phone takes FOREVER to turn on (or so it seems in comparison). Any idea how or why this is now? Is it due to an update, can I uninstall the update to go back to a fast start setting?? Thanks!!
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When you hold the volume down button are you also holding the power button? You need to use volume up + power to restart. Then, when it restarts, immediately hold volume down without letting up on the power button. Needs to be volume down + power to boot into hboot. As for now long do you hold it, until it boots to hboot.
Thanks for the info...
Thanks for more details I'm pretty sure I did let up on the power button thinking it was keeping it from loading. I'll try this out now!!!

[Q] htc one s in CWM bootloop cant enter bootloader

phone :
htc one s
rooted
cyanogenmod
CWM recovery v6.0.5.1
so the story is :
i forgot to charge my phone last night and it ran out of battery and died. when i plug it into charger or PC, it immediately boots into CWM without pressing anything and wont enter anything else. it also doesnt seem to charge in CWM and when i try to power it off, it simply goes into CWM again. simply put, i cant turn it off or charge it. phone was working perfectily fine before.
what i'm trying to do now is trying to boot it into bootloader and try to charge with fastboot script (i did it before) so i can get enough voltage to boot it into the OS. but the phone refuses to enter bootloader by any means and simply goes back into CWM.
tried holding the vol down + power button for 10 secs till it restarts, release power and hold it again while keeping the vol down pressed. but it still enter CWM (usually this is what i do to enter bootloader)
i cant restart to bootloader from CWM either (any buttons to power off, restart, boot to anywhere from CWM simply brings it back to CWM)
holding only the power button till it restarts also brings it back to CWM.
holding the vol down + power button without releasing them simply gives me screen flicker and it loops that way. i assume that made the phone soft reset repeatedly?
holding the vol down + power and releasing power once it resets and tapping power also brings it back to CWM.
here's a simple video showing the phone : youtu.be/PDvskMZIHAM
any help would be appreciated. thanks.
solved : as i noticed that the phone charging led turns on whenever i hold the power button. i tried holding the power button for god knows how long while plugged in. i released it once my finger was tired and cant hold it anymore and it boots into cyanogenmod.

Can't flash TWRP through Odin.

Hi, I've been trying to flash TWRP to my phone in order to root and install some custom roms but there is a problem. I boot into download mode just fine no problems I connect my phone to my PC via USB cable and Odin recognizes my phone I untick auto reboot choose the correct TWRP file and start it and this is where it all fall aparts. My phone doesn't restart on it own, it just keeps staying on the downloading please don't turn off the target screen. I tried all the button combinations no luck phone doesn't restart. Only combination that works is volume down and power button but that just shut downs the phone. I really need some help here guys. Thanks in advance
after flashing TWRP, hold down volume (-) and power button, do not release until you start again... when you start, change volume (-) button to volume (+) for a few seconds and release... then start twrp
After flashing TWRP, disconnect cable, hold Volume DOWN and POWER button and once the screen is OFF, press and hold POWER + Vol UP + HOME.

Question my Galaxy A12 won't boot to android or download mode help me pls

so I just tried to install unofficial TWRP 3.5.0 on my Samsung galaxy a125m and everything went fine, Odin said done. Then I just tried to start TWRP by pressing power and vol up and it didn't start, so I thought I might have done something wrong and rebooted to download mode and flashed it again, Odin said done, then I unplugged the USB cable and now it won't boot, neither to the system or recovery, even to download mode, it did enter download mode a few times before but I pressed the wrong button and had to cancel and enter again, now it won't even enter download mode so I can't flash stock rom to fix bootloop... pls how can I solve this I'm desperate
when I try to enter download mode by pressing volume up + volume down it just shows up charging mode without any numbers, then it turn on and shows Samsung logo, unlocked bootloader warning screen, and the Samsung logo again, but then just restarts and repeats all again...
when I try to press volume up + volume down + power, nothing really happens...
someone help me please
You need to keep both volume up and down pressed, then plug in the charging cable. It should enter download mode, no need to press the power button like in older samsungs.
PhotonIce said:
You need to keep both volume up and down pressed, then plug in the charging cable. It should enter download mode, no need to press the power button like in older samsungs.
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yeah I did that a lot of times, it used to work now It doesn't anymore
in this video you can see what's going on, I'm pressing both volume keys and nothing happens
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Is the cable plugged into a charger and on?
Have you considered that your volume buttons may not be working?
Same hear
Try attaching your phone to the PC, and then pressing volume down + power to reset the phone, (for about 7~8 seconds) then immediately press the volume down and up buttons, that's how I recovered from it. Tell me if it worked
juliano-oh! said:
Try attaching your phone to the PC, and then pressing volume down + power to reset the phone, (for about 7~8 seconds) then immediately press the volume down and up buttons, that's how I recovered from it. Tell me if it worked
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Please help it dosent worked
No pc detection
No download mode
No recovery
No charging
Hello, unfortunately in these cases the only solution is to enter download mode, check if any button is damaged or if the cable works and if it is well connected, press the buttons harder, hold down the volume up and volume down buttons at the same time , by pressing the strong buttons, for about 6 seconds and then connect the cable. If you don't try another cable to see if that's the problem there is no other solution as the phone is not recognized by an app that can put it into download mode when turned off the solution is the one I already told you about. I hope you have fixed that problem. Sorry for my bad English.
developeMYWORLD said:
Please help it dosent worked
No pc detection
No download mode
No recovery
No charging
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To Escape the Black Screen of Death or Bootloop
To boot to RECOVERY MODE
Method 1
First connect phone to the PC for 30 minutes
Hold all 3 keys and release volume down when it buzzes.
Method 2
1. Plug in USB cable to PC
2. Hold down all 3 buttons on phone.
3. When it buzzes release volume down and plug in USB cable to phone.
Then restore your backup or install a ROM
To boot to DOWNLOAD MODE
Method 1
First connect phone to the PC for 30 minutes
Hold all 3 keys and release power when it buzzes.
Method 2
1. Plug in USB cable to PC
2. Hold down all 3 buttons on phone.
3. When it buzzes release power button and plug in USB cable to phone.
Then use Odin to flash official firmware.
@physwizz
I am having a similar problem with the Samsung A12 SM-a125u
I never could enter into this "Downloading mode".
I tried flashing the stock ROM through ADB with fastboot, and I have another problem that I've never seen before: ADB can see the device while in recovery mode, but fastboot can't. And so it won't allow me to flash the ROM and I don't even know how Odin is supposed to help yet; I think I needed to enter Downloading mode for that, but I can't get into it.
I'm working on this phone for a friend who was given it because his friend's mom doesn't remember the password to it. Does that matter? It's worth noting that because of that I cannot get in to turn on OEM unlocking or dev mode, but idk why that would come into play in recovery mode. Also, the model indicates this is an AT&T phone, and tutorials online have acknowledged this model in their "applicable models" list at the beginning of their tutorials, but I know that carrier phones can cause problems all over the place (stop buying carrier locked phones people!); is this a problem?
How the heck do I flash the stock ROM to this this?

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