[Q] Bootlooped, can't access download or recovery - Samsung Galaxy S9+ Questions & Answers

Hello,
as I wrote in this (now locked) thread, I installed Superior OS and got stuck in bootloop. I get "Galaxy S9+" screen followed by system bootanimation, which repeats itself indefinitely. It doesn't restart by itself, it just boots endlessly.
The problem here is that I can't access recovery or even download mode. I tried to restart (power + volume down) and then quickly press combination to access recovery or download mode. No luck. I couldn't even turn the damn phone off. I just kept restarting.
So I let it drain the battery hoping I could then power the phone on with correct key combination. I tried holding bixby button + volume down while inserting USB. It just started booting up to system with boot animation. I tried holding bixby + volume up, or even power + bixby + volume down. No luck either.
I got correct USB drivers installed, as I flashed the phone with Odin in the past. Odin recognizes phone while it sits on boot animation, but it won't start flashing. ADB or fastboot do not work on bootanimation, as the ROM is freshly installed. I presume it has ADB turned off by default...
I'll be grateful for any ideas and suggestions.

No escape , man. I tried all ( check this rom for galaxy note 9 )

Nice...
I went to service center, they said they can fix it for me. 40 euros for reflash (download mode isn't necessary), 100 euros for complete unbrick. I hope the unbrick isn't necessary and the bootloader is intact. I'll post with update.

Related

how to boot into recovery mode through pc ?

Hi,
I own galaxy s3 i9000, currently on custom rom. My phone automatically rebooted and got stuck on bootloop. If I am able to enter in recovery mode, i can wipe cache(which may can help to get out of bootloop). But the problem is I am unable to enter into recovery mode because phone's volume up button is not working and my phone auto reboots every time after power off or reinserting battery. Is there any other way to clear cache or enter into recovery mode?
I dont want to flash my stock rom via odin (because i didnt backup my some important apps and msgs), this will be my last option.
sorry for my bad english
The normal way I get my phone into recovery mode from the PC is using ADB and the command: "adb reboot recovery". However, I bet this won't work in your case for one of several possible reasons: depending on when the bootloop occurs in the boot process, the phone may never reach a point where ADB is able to see your phone in the first place; if this is happening after a flashing a new custom ROM, then also it's unlikely that USB debugging is turned and the PC is not yet authorized to connect with it over ADB.
Another thought, could your power button be stuck down? I had a GS3 SCH-I535 several years ago and the power switch went bad on it, it would keep rebooting, shutting down randomly, or I'd be unable to turn on the screen. I had a switch replaced and it was fine after that. I don't think it's normal for the phone to automatically boot up when you reinsert the battery, that's why I bring that up. Maybe you can wiggle the power button a bit and try to unstick it if that's the case.
I tried to remove and stick back the power button again, but still it didnt worked. By the way fixing power button will not help me to get into recovery mode as my phone's volume up button is also not working, and recently I found out that I cant enter into download mode too because when I press respective buttons (volume down + home + power) for download mode, it gives warning msg to click 'volume up' buttton to enter into download mode or 'volume down' to reboot. Therefore again volume up button is required to enter into download mode too. So the only option remained for me is to visit service center and fix the volume up button.

Phone only boots to recovery mode, power button only doesnt work in recovery mode

Recently did factory reset for my i9100, downloaded reboot manager and rebooted into recovery from that app.
Now I can't get out of recovery mode since power button doesnt work in there and my middle button is broken too.
VolUp and VolDwn work everywhere and I can turn phone on by power button.
Any help? I'm on 2.2.3
edit/ i also rooted the phone recently with kingroot via pc
Hi @noupls,
To get out of recovery mode, you need to take out your phone battery.
Once your phone is off, reinsert the battery. Then go into download mode (press and hold volume down + power button + home).
Once in download mode, flash stock ROM via ODIN (if you've already download the firmware files).
Saber.
With broken buttons, you're pretty much stuffed whatever you do with the device. You NEED to get them repaired/replaced ASAP.
In recovery, there should be an option
REBOOT SYSTEM (NOW)
With your broken buttons I'm pretty sure that'll be the only thing that works.

Stuck in boot loop with a faulty home key, Cant get to download mode on the S6 Edge.

Hello, all.
I have a tricky problem here.
Let me tell the background of the problem first.
Basically, I flashed cf-autoroot using odin on my phone and it restarted all perfectly, then I restarted it to download mode using pc command "adb reboot download" since trying from my phone always gets stucked on download mode warning screen, PRESSING VOL UP DOES NOTHING.... When I reached download mode, I FLASHED TWRP V2.8.0 using ODIN, it went directly to home screen not recovery, then I powered it down and restarted it to recovery mode and since then its stuck on Samsung boot logo with 'recovery not seandroid enforcing screen' . I tried to boot into download mode using VOL DOWN + POWER KEY since my HOME BUTTON IS FAULTY AND DOESNT WORK. So, I get to the download mode warning screen, BUT pressing volume up OR volume down does nothing and I have to keep POWER + VOL DOWN pressed for about 10 seconds again to come to download mode warning screen. How can I go to download mode when I cant access the TWRP recovery and also have A NON-WORKING home button .
URGENT HELP NEEDED, PLEASE.

Stuck in peculiar boot loop

I tried to flash twrp and now my phone is stuck in a 5 second boot loop.
Fastboot and recovery can't be accessed at all no matter what combination I make. vol+ power, vol- power, both +- power, hold 40 secs 60secs (useless because phone reboots in 5 secs) , all tried. Every 5 seconds it just boot loops. Help me.. I have it for less than a week. Wanted to flash only because the stock rom was giving problems such as landscape and auto random reboots.
I even tried a script which said would wait in adb detect mode, that didn't work. Guess phone rebooted before my pc could detect it. Tried installing intelSOC method as suggested in another thread, the short reboot is tough to get by.
By the way, it's an umidigi china phone.
bump.. pls help!
Hi , let your battery to completely empty , press vol + and plug usb to see if phone goes into Fastboot mode if not try Vol - and plug usb .
Both didn't work. But thanks.
Teddy Lo said:
Hi , let your battery to completely empty , press vol + and plug usb to see if phone goes into Fastboot mode if not try Vol - and plug usb .
Click to expand...
Click to collapse

No Os Stuck on bootloop

woke up in the morning my phone was turned off. So, i tried to charge it . then it went to fast-boot mode directly. I thought something was up and powered it off and tried to turn on but it got stuck on boot screen - I Thought(Just a Brick and i could reverse it)
Series of wrong steps:
1. i advanced wipe system,data,internal storage (I thought it would reset the phone :cyclops: ). but i realized that i delete everything later.
2.from twrp i directly went to fast-boot mode. But, my morning brain made me to poweroff the phone from fastboot.
3.Tried to go to fast-boot but accidentally i powered it on which started a boot-loop.
i cant shutdown the mobile or do anything .
i want to known whether can i still go to fast-boot mode or not.
if I could some how shutdown or go to fast-boot i could bring my mobile back to life
Please Help Me Out !!!!!!!!!!
EDIT :
i found the answer holding Vol Up + Down + Power buttons would force shutdown it.
You need to flash with stock rom , try to hold volume - and power while re booting
Not working

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