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Galaxy S4 (i9505) boot problem

Hello,
I create a new thread because all "hard/soft bricked" topic are not the same as me.
I explain, my sister give me a galaxy S4 (i9505 variant) who has fell into the water, the eMMC seems corrupted.
The phone has "boot order" problem:
- If i try to boot normaly (just pressing power button), the phone boot in recovery mode
- If i try to boot while pressing vol down + home + power, the phone boot in "normal mode" (android seem not damaged)
- If i try to boot while pressing vol up + home + power, i show the "samsung galaxy s4" splash screen and the phone reboot in recovery mode
The only way for me to start in download mode is to boot android (using vol down + home + power) and using ADB with "adb reboot download".
I've tryed to flash pit, rom (who is stock rom i9505XXUHOF2) and trying "bootloader update" option of odin, nothing change, the "boot order" is always wrong !
I'm not sure, so i think it's Qualcomm firmware who manage the "boot order", if yes, how can i redefine it?
If no, do you have some informations/solution that can help me to have the phone working "normaly"?
Thank you in advance for your reply.
Kev

Try this: uncheck everything in Odin except f.reset time, flash stock rom, remove USB cable from the phone, remove battery, wait 5 seconds, replace battery, boot into recovery, perform factory wipe, remove battery, try to get into download mode again.
Do the volume buttons work when the phone has booted into android?

Hi audit13,
Thx for your reply
I've tryed what you suggest so boot order is always wrong.
Volume buttons work fine (i need them to boot android).
The problem isn't to get the download mode, so key combinaison to boot method, before phone feel water, keys combinaison was:
power button => boot android
vol down + home + power => download mode
vol up + home + power => recovery mode
And after feel the water:
Power button => recovery mode
Vol down + home + power => android boot
Vol down + vol up => download mode
If it can help, while phone is shutdown and charging, the phone vibrate every 3 seconds and didn't charge, if i just press vol+ and vol- keys during 2~3 seconds, the battery logo appear and the phone start to charge. A second thing i've see, when i'm on android, if i use the "reboot" function, the phone reboot in recovery mode.
It seem that the bootloader didn't boot on the good partition.
I've see an option in odin v3.10.7 called "auto start" and can take value from 1 to 8 (or nothing), do you think this can be a setting that allow user to define the partition number used to start?

S7 Edge stuck on boot logo ( G935FD )

I tried flashing the bootloader from here.
Then it went crazy or something, and got stuck on the powered by android logo, however i was still able to boot into download mode the first time by holding power + volume down button
to simulate a battery pull then quickly holding the volume down + home + power again. Then I tried flashing TWRP immediately in an attempt to make it work because i have a flash drive to microUSB adapter that allows me to read flash drives from my phone ( so that I can flash the rom properly ). The last time I was in TWRP there was 0 things in my storage everything was wiped after I flashed TWRP the first time
Now im trying to go back into download mode but it just wont let me after the battery pull.
1.) After simulating the battery pull, I immediately let go when the screen is dark.
2.) I immediately attempt to go into download. It shows the powered by android for a second, then flickers then it's back to the powered by android again.
3.) I think my recovery and download is screwed. Or something is going on
=== EDIT ===
I managed to get into download mode and flash back my stock rom.
I think the phone must have read my Power & Volume Down & Home button as the battery pull because I let go of all buttons completely before doing it.
Steps to get out of bricked hell:
• Hold Power & Volume Down until the phone turns off
• Immediately without letting go of the Power & Volume Down button, press the home button as well.
• If the timing is not correct just retry.

Can't get into recovery to save my life!

Guys, I'm wanting to get into recovery mode to wipe my Dalvik cache but for the life of me I can't get to it. I'm doing up+power+home and I go to screen saying 'Downloading do not restart target'. I guess this is download mode. How do I turn this off?
For kicks I tried down+power+home and it asks me if I want to enter download mode. Also tried up+down+power+home but this just does a normal boot.
I know this is probably something really basic but I just can't get in. I did have KingRoot installed a while back. Could this have caused the problem? Any help is greatly GREATLY appreciated. Thanks!

Hold power and volume down, then press volume up when the OS warning screen appears = download mode.
Hold power and volume up = recovery.
Don't bother with the home button. You don't need it. Should the key combinations not work correctly, you may have bad buttons on the motherboard.

Thanks for the quick reply. I double-checked my volume buttons and they work as they should (up = louder; down = softer). I tried power + up and still get the download mode screen. I even tried adb to boot into recovery and it brings me to that same 'Downloading do not restart target' screen.

Prior to writing my post above I tested my S4 to make sure I was giving correct information. Both key sequences worked on my S4.
The only thing I can think of is that you have a hardware issue with your volume down button. To test, try pressing and holding power without touching a volume button. If you enter OS warning mode without pressing a volume button, then your volume down button is worn out and needs to be replaced.
My reasoning is this.
Button failures are the most common issue with the Galaxy S4.
You instantly enter download mode by pressing power and volume up while being unable to enter recovery at all. This means you're skipping a step in accessing download mode, which wouldn't happen if all the buttons were working correctly.

Maybe, but shouldn't my phone go into recovery when I send the command to enter recovery from adb? It just reboots and goes to downloading. My buttons work fine when using the phone when android is up so I'm doubting that it is a hardware issue.

It should, but something is interfering with that. I'd go back to stock using Odin, simply to ensure all parts of the firmware match. Then see if you can get into the stock recovery with the key combo. If you are able to, then you can restore TWRP and flash a custom ROM. Otherwise the device needs to be looked at.

Thanks for the reply. I'm running the stock os without root. All I really want to do is wipe Dalvik cache. Can I do that from adb?

Yep.

Bricked SM-T230

Hello all, i have SM-T230 Galaxy Tab4 7.0''. I was installed TWRP and formatted data, for installing a custom rom i was rebooted into recovery mode but device keeps Samsung boot animation. I'm forced reboot for download mode; isn't worked. Tried same for recovery; isn't worked. Now device just stucks at boot animation. Help me please.

Are you sure that you pressed volume (- or +, it depends on what you want to do) home and power buttons enough? Tablet should reboot at least (you should see this when screen gets black for a while)

matteo0026 said:
Are you sure that you pressed volume (- or +, it depends on what you want to do) home and power buttons enough? Tablet should reboot at least (you should see this when screen gets black for a while)
Click to expand...
Click to collapse
Yes buttons is working i'm sure. When i'm try press volume - and home buttons with power, device is resetting but no download mode.

tunasahinn said:
Yes buttons is working i'm sure. When i'm try press volume - and home buttons with power, device is resetting but no download mode.
Click to expand...
Click to collapse
I don't know what to do then...

I'm not sure but some other android devices won't boot into download mode if battery is low. I don't know if this is case with tab 4, but you could try to charge tab and then try to hold "volume down" + "home" + power.
You could also try to keep holding those for 2 resets, because it could be that your device is "boot looping" to recovery which might have been wrong version and keeps failing.

phone wont stay on long enough to do anything

My note 4 wont stay on not even long enought to login to the play store, it just freezes for a second and reboots.
would it be possible to fix it with a custom rom and theres a way to install without installing any app on the phone

Hey there, you can try to do a factory data reset if the phone boots into recovery mode.
NOTE: A factory data reset will wipe the whole device including the internal storage.
To enter into recovery mode, power off the phone. Then, hold the vol up + home + power buttons together till you see the Samsung splash screen. When the splash screen comes, release the power button and continue holding the volume up and home buttons till it boots into recovery.
Once it's in recovery mode, you can use the volume down button to scroll to the 'Wipe Data/ Factory Data Reset' and then hit the power button to select the option.

RVR said:
Hey there, you can try to do a factory data reset if the phone boots into recovery mode.
NOTE: A factory data reset will wipe the whole device including the internal storage.
To enter into recovery mode, power off the phone. Then, hold the vol up + home + power buttons together till you see the Samsung splash screen. When the splash screen comes, release the power button and continue holding the volume up and home buttons till it boots into recovery.
Once it's in recovery mode, you can use the volume down button to scroll to the 'Wipe Data/ Factory Data Reset' and then hit the power button to select the option.
Click to expand...
Click to collapse
the phone boots normali in recovery mode but after the factory reset it keeps shutting off after less than a minute wich isnt enough time to do anything on it

notgonzo said:
the phone boots normali in recovery mode but after the factory reset it keeps shutting off after less than a minute wich isnt enough time to do anything on it
Click to expand...
Click to collapse
Okay. Does it boot into Download Mode?
To enter into download mode, power down the phone. Similar to the recovery boot process. Just that instead of the volume up button, you need to hold the volume down button.
If it does boot into download mode. Does it stay on or give you the same problem?

RVR said:
Okay. Does it boot into Download Mode?
To enter into download mode, power down the phone. Similar to the recovery boot process. Just that instead of the volume up button, you need to hold the volume down button.
If it does boot into download mode. Does it stay on or give you the same problem?
Click to expand...
Click to collapse
It boots normally to download mode and stays there without restarting

notgonzo said:
It boots normally to download mode and stays there without restarting
Click to expand...
Click to collapse
Maybe you can try installing the firmware through Odin. It may fix things. Else it could be an eMMC failure.

It could be a battery problem. I had kinda the same issues (random reboots that became more and more frequent and at some point the phone barely booted). So i ordered a new battery and problem is solved, phone is up and running again. If you can, try another battery just to be sure that this is your case. Also, the worst scenario is that some people reported random reboots when emmc memory failed. I hope this is not your case