Weird boot loop - Black Screen of Death - Galaxy S 4 Q&A, Help & Troubleshooting

In my T-Mobile Galaxy S4, I am getting weird loot loop. When I power on the device, It shows Samsung logo, and then go black. When I connect to charger, It shows "charging" for one second and go black. When I try boot into recovery menu, it shows it for a split second and go black. The Only place where I can see the display is "downloading" mode. I managed to put in downloading mode and flash stock ROM twice using Odin, and it was completed successfully, but then when I try boot device, it shows Samsung logo and go black, the whole cycle repeats.
I couldn't understand what is the problem at all. The Display looks fine in "Odin" downloading mode, and since I reflashed firmware, I am going nuts trying to understand.
Please help.

Hi,
Re-flash stock firmware should fix this (I hope it).
Sent from my GT-I9500

Try flashing stock again but don't check anything except f.reset time. After flashing and you see the word "reset" in the status window, remove USB cable, remove battery, replace battery, use button combination to boot to recovery, and perform a factory wipe.
Btw, the T-Mobile s4 forum is here: http://forum.xda-developers.com/galaxy-s4-tmobile

Related

S4 I9505 stuck in bootloop, does not boot to recovery, only download mode

Hello!
This morning my s4 decided to randomly power off on me whilst I was using it, and now it wont power back on without looping on the bootscreen where the white text "Samsung Galaxy S4" appears. I attempted to boot into recovery, but I just get the blue text "recovery booting" in the corner with no action at all even after 10 minutes. Download mode works, but even after reflashing the stock firmware i'm getting the same issue. The battery appears to be functional as normal, charging up and displaying charge in my old s4. Please respond with any ways I can potentially get it back up and running (even if I lose all data) ASAP.
Thanks!
Try nand erase all + stock rom, it might work, otherwise try an other battery.

Need help to unbrick my phone

Hi,
I have a Note 4 t-mobile that is "brick" right now. and I hope if anyone offer assistance.
It is running Android 6. Ever since the last upgrade the phone would freeze and reboot on its own. I fixed that problem by installing Wake Lock. After that it would still experience sluggish at time but the phone is still very much usable.
Lately, after watching a bit of streaming video the phone would slow down so much that a reboot is needed. But yesterday my last reboot turned my phone into a brick. After that reboot the phone rebooted itself to the download mode. So I took the battery out, waited for a few minutes and put the battery back in and started the phone. Instead of booting normally the phone displayed the message including "set warranty bit: recovery" and then followed by the flashing TWRP splash screen. By "flashing TWRP splash screen" I mean the TWRP splash screen ( with the TEAMWIN logo) would be shown on the screen for a second, then the screen black out for a couple of seconds, then the splash screen is back on for a second, and the screen black out for a couple of seconds, etc, and never successfully boot into TWRP recovery. I had left the flashing splash screen overnight and nothing changed. Connect the phone to my pc via usb and fastboot wouldn't recognize my phone when phone was flashing the TWRP splash screen. So I tried to flash TWRP again by starting my phone in download mode "volume down + power". When I connected my phone to my pc Odin recognized my phone. But when I tried to flash a custom recovery (TWRP or CWM) it seems the download started but never finished (on the phone I could see the progress bar started but never progress further).
Any suggestions would be greatly appreciated1
Additonal info
I just wanted to add that my phone is still running the stock ROM.
Problem solved
Problem solved. Once I used a different cable and the download process actually worked and I was able to flash stock ROM using Odin.

NOTE 4 N910F Bootlooop, Shuts down, Blue Light

Hi
I am stuck with Pulsing blue LED and the "Powered by Android" screen,
have access to both the recovery and the Odin Mode,
I also have Odin (version 3.13) on my computer along with TWRP (3.1.1 trlte and 3.2.1 version)
My device is a Samsung Galaxy Note 4 N910F bought in shop, no special carrier. It was bought in Belgium.
I have tried everything that I have read. The furthest that I can go is the Second Samsung Logo with the Flashing Light
Whenever I try to Flash the stock Firmware for my N910F, everything goes well in Odin but then when the phone reboots, it (sometimes) install the system update until 30% then shows erasing then either crashes right there and then or load the system update bar, completes it then shuts down.
In between I do perform a wipe of the cache and factory reset of course. (in both normal and TWRP recovery)
Whatever I do, at some point, my phone either gets stuck in a bootloop, freezes with the LED light or shuts down.
Oh and I can transfer files directly to the internal storage with no issue
Please help a brother out lol. I have spent the last 4 days looking for a way to fix this. To no avail.
And I have also proceeded to use different batteries.
I have the exact same problem. Doesn't anyone have an idea?
Mugiwara7 said:
Hi
I am stuck with Pulsing blue LED and the "Powered by Android" screen,
have access to both the recovery and the Odin Mode,
I also have Odin (version 3.13) on my computer along with TWRP (3.1.1 trlte and 3.2.1 version)
My device is a Samsung Galaxy Note 4 N910F bought in shop, no special carrier. It was bought in Belgium.
I have tried everything that I have read. The furthest that I can go is the Second Samsung Logo with the Flashing Light
Whenever I try to Flash the stock Firmware for my N910F, everything goes well in Odin but then when the phone reboots, it (sometimes) install the system update until 30% then shows erasing then either crashes right there and then or load the system update bar, completes it then shuts down.
In between I do perform a wipe of the cache and factory reset of course. (in both normal and TWRP recovery)
Whatever I do, at some point, my phone either gets stuck in a bootloop, freezes with the LED light or shuts down.
Oh and I can transfer files directly to the internal storage with no issue
Please help a brother out lol. I have spent the last 4 days looking for a way to fix this. To no avail.
And I have also proceeded to use different batteries.
Click to expand...
Click to collapse

Stuck on "Starting Android..."

Hi Guys
I used Odin to reflash my Galaxy S10+ dual sim (duos) as it was experiencing some slowness. I used the Singapore firmware as it uses the same "G975FXXU1ASBA" model name.
The process completed successfully but when the phone boots, it gets past the Samsung logo screen and then gets stuck on a blank black screen with "Starting Android..." showing in the middle. I can swipe down from the top to show the toolbar, but it is limited in what I can select from it and the phone doesn't get to the point where the home screen boots.
I'm guessing this could be an app optimization process but after 4 hours, it was still on this screen.
I've tried re-flashing (redownloading the firmware files), clearing the cache and rebooting the phone.
Does anyone have any ideas?
In case you do want to start clean anyway, have you tried doing a reset in the recovery menu (where you are wiping the cache)? This will wipe all data.
I may have to try the full wipe, which is something I wanted to avoid but seems I have no choice.
Hopefully that at least solves the problem.
I have the same problem but I cannot get it to boot into recovery or download mode. I was flashing Magisk at the time. Odin said it worked but now it wont pass the initial stating android... Odin detects the phone but can talk to it. ADB does not even detect the phone. Phone power and reset come on. if i hold both volume the assistant comes on and if i hold bixby the safemode tag appears in the bottom corner but it still wont boot past Starting Android or boot into download mode

Stuck in logo after flashing stock. Can't boot into recovery. PC doesn't recognize.

So, I rooted and tried flashing the stock ROM (from Sammobile, same country, same exact model [SM-G950F], I already had the stock ROM and had never flashed anything else to the phone other than root, June security update, my phone had July's) to see if I could fix a problem that couldn't be fixed with any other method I had tried.
Everything in Odin seemed to go well, I got the PASS green box at the end. But then the phone couldn't go pass the Samsung logo when booting up. I left it quite a few minutes, before trying to boot into recovery mode and wiping data. Only to realize that I couldn't boot into recovery mode. In fact, I can't even turn the phone off. No combination of hardware keys works other than power button + bixby + vol down, to get into download mode. But that's of no use, because when I plug my phone into my PC (with the same cable and port I used before to root and flash the firmware into it) it is not recognized by Odin or the PC.
It just has the Samsung logo flashing slowly over and over because I can't turn the device off. By the time the battery dies out I'll most likely have the logo burnt into the display.
I also haven't been able to find any help online. Everyone's suggestion is “boot into recovery and wipe data”, but I can't do that.
Is my phone gone for good?

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