Galaxy Tab S4- , stuck in boot loop after forced reboot - Samsung Galaxy Tab S4 Questions & Answers

Hi ,
I have a Samsung Galaxy Tab-S4 with 100% stock ROM( Developer mode-Not enabled, OEM Unlock=OFF, all default with no tampering ) ,Android 10 . Out of the blue, whole system hung up , I just did a Power Button Hold trying to recover the system after a long while of wait.
**** stuck me, the next moment, the Device is boot looping non-stop. Too long never play with Android Rooting . i could only roughly remembers some steps .
I have tried the following .
1 . After getting into recovery , clear cache, factor reset , these 2 do not help .
Observation .. There are long lines of Dump screen text pointing to
-[Libfs_mgr] - Failed to mount /cache
failed to open /dev/block/bootdevice/by-name/cache
cant mount /cache/recovery /last_extra_history
I am suspecting the cache partition is corrupted
2 Odin Reflash of Stock ROM . Using Frija to download SM-T380 firmware to flash .
Reference : https://forum.xda-developers.com/t/sm-t830-bootloop-after-flashing-stock-firmware.4084111/
a) Try default option . Flash BL, AP, CSC -Home /CSC common . All still get back to same problem
b) Try Option of Re-partition /Erase NAND with extracted PIT file from the downloaded firmware.
Since suspected corruption of Partition
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Flashing went well, However these is a hiccup of FPR Enabled , PIT Download Ignore was displayed on the Tab-S4 Download Mode screen.
I suspect this is preventing the Nand Erase and Re-Partition activities to actually taking place.
The tab S4 is still stuck with same issue of Boot Looping .
Can Any kind soul to advise.
I want to recover the device, as much as possible, I will not want to root it but if going this path can help to at least boot the device back to normal state, I would be greatly appreciated for the advice and help.
Anyway to do OEM Unlocking and FRP disabling when the device now is stuck in bootloop.
It is a dilemma , in the past , default i will at least turn on developer mode and OEM Unlock to prepare for some flashing , since i have no use of flashing , default nothing open and now I am stuck.
thanks

Related

Fubar'd my s6 edge Help please?

So I tried going from atrium to alliance and got stuck in a bootloop of hell I guess..
I can boot into download mode but my odin seems useless because I don't even know how to reflash twrp through it.
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That's me trying and failing to flash stock whatever to it.
Knox is tripped void.
Product name sm-g925T
Current binary Custom
System Status Custom
FAP Lock: Off
------------------------------------------------------------------------------------------------------------------------------------------------------------------
What I've done so far:
Tried flashing BL/CP from Atrium to get it to be able to boot into recovery by putting the twrp into AP
Didn't work. I can't boot into twrp it all
All it ever does now is sit at the samsung galaxy s6 edge powered by android screen but I can get into download mode.
Can someone please give me a list of steps to rescue my phone from this hell? And tell me why all these odin things for twrp don't list step by step?
Sorry I'm just stressed out to the max right now and this isn't simple unbricking like my nexus was :/
Steps to fix: Put twrp in cp and flash
Boot into download mode hit cancel
hold vol up power home
Flashes angry red message
TWRP Opens
Gonna try flashing a rom and pray
Good luck, with FRP "off " it's not possible to get to boot again.
In the future FRP should be enabled "on".
Pp.
How to fix:
Reboot to twrp by the quickfix boot to download reboot hold vol up power home
install atrium
restart
profit.
Good to hear, profit.
Pp.
had the same exact problem tried reinstalling atrium but the rom is messed up wen it loads its like the screen isnt calibrated properly and ive tried reinstalling over and over again any ideas? also any other roms i try to install it stays stuck on the samsung s6 edge logo screen
wingsltd said:
How to fix:
Reboot to twrp by the quickfix boot to download reboot hold vol up power home
install atrium
restart
profit.
Click to expand...
Click to collapse

Bootloop and Only Stock recovery appearing

Hello all,
I wanted to switch from Custom ROM to stock ROM (as I am selling my phone; and the seller insists that I have a stock ROM) and downloaded the latest ROM from smamobile.com.
http://www.sammobile.com/firmwares/download/35296/N7100XXUFNI1_N7100ODDFNI1_INU/
The above firmware was installed successfully and I got a "pass" message in ODIN. But the problem comes after this.
The phone stays in the Samsung scree for more than 1 Hr and then boots into Stock recovery. The same happens when I select the "reboot system now" from the recovery. The phone gets stuck at Samsung screen and boots in recovery. The same cycle continues. Samsung screen -> Stock Recovery -> Samsung Screen -> Stock Recovery..............................
Is there a way, I can make the phone boot and have the stock Samsung ROM running?
Please help !!!!
Screenshot of the stock recovery screen which comes up every time I reboot.
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https://goo.gl/photos/3ZJxfRJkHR52hSWF6
Can someone help!!!
Please!!!!
Reverting from custom rom to stock need to factory reset the device ... Pls use the stock recovery menu to factory reset the device.
aze2learn said:
Reverting from custom rom to stock need to factory reset the device ... Pls use the stock recovery menu to factory reset the device.
Click to expand...
Click to collapse
Same problem here. Bootloop, stock recovery and the option Factory reset didn't work. I tried a lot of stock roms and stock recovery, cf-root, pit file and repartition... and always failed the process in Odin.
I need help. Any idea?
Thanks in advance.
Are you using the original Samsung USB cable to flash? Tried different USB cables, USB ports, and versions of Odin?
If you are using the stock ROM from sammobile.com, only unzip the file once and flash the ROM in PDA box for Odin 3.07 without a pit file.

Bricked OP3 - MD5 Checksum System: Failed

Hi All,
First off, this is what I did that led to this problem:
*** Beforehand, phone is unlocked, rooted, and updated to latest OTA OOS version (I think 3.2.7)
*** Unlock, recovery, root and NFS backup was implemented using this guide
*** OEM unlocking was turned off in the Developer Options
1. DPI was changed using the [email protected]_radaideh as recommended by some in Reddit -- this was OK
2. DPI was changed again using Le DPI Changer (found in play store), but used "EDIT BUILD.PROP" option
3. When phone rebooted, it was either stuck on OP logo, or just looping on OP logo (can't remember)
4. Booted into TWRP, and restored NFS backup (pre-root) and it was successful according to TWRP
5. When phone rebooted, it was either stuck on OP logo, or just looping on OP logo (can't remember)
Now after this moment, I tried Method 1 of the mega unbrick guide, but I encountered multiple md5 check failures upon boot. I then tried Method 2, and the md5 check failures were reduced to just one: system: failed.
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I can boot into fastboot, but I can't boot into recovery and system because of said error. Please help!
flash stock system.img
I already tried that using:
system.img from FULL unbrick tool -- doesn't work
system.img from 3.2.5 found somewhere here in XDA -- doesn't work
As mentioned above, the OOS version was at 3.2.7. I couldn't find it in the OP downloads site, but I did download the 3.2.6 image. That, however, did not contain any system.img.
did you find a solution
Try method 2 unbrick tool as per what they said, again. No other choice.
Hi, did you find a solution for this ? I have a similar issue and even after several flashes, i still have the failed md5 failure on system.img.

[help] Galaxy J2 prime sticker on erasing after flash with Odin

Hi, I have a problem since a few days ago.
I have a J2 prime that had certain system problems so I decided to flash it with Odin.
The process ended correctly but never started the phone (stuck in erasing...)
I did many operations:
I did a wipe data in recovery (and stuck in rebooting...), I have marked nand erase all in odin, I have even downloaded another firmware of the same model, I flashed with another Odin and the problem continues.
The phone was connected to the charger all night (7+ hours) While the screen appeared "erasing ..."
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}
If I remove the battery I get the message "no Command" when turning on the device again
I need help, please.
Sorry for my bad english
andrecuellar said:
Hi, I have a problem since a few days ago.
I have a J2 prime that had certain system problems so I decided to flash it with Odin.
The process ended correctly but never started the phone (stuck in erasing...)
I did many operations:
I did a wipe data in recovery (and stuck in rebooting...), I have marked nand erase all in odin, I have even downloaded another firmware of the same model, I flashed with another Odin and the problem continues.
The phone was connected to the charger all night (7+ hours) While the screen appeared "erasing ..."
If I remove the battery I get the message "no Command" when turning on the device again
I need help, please.
Sorry for my bad english
Click to expand...
Click to collapse
Some small details needed I guess. These are mandatory for flashing w/ Odin anyway:
0. Firmware is downloaded from known site like SamMobile or Updato.
1. Odin version is 3.12.3
2. Firmware matches your model name (which i guess you have)
3. Flash all 4 (BL/AP/CP/CSC)
It seems like your phone stuck in erasing tho. Maybe try replace the CSC with the HOME_CSC included in zip file.
( The HOME_ one is basically the same with normal, except it skips wiping data)
Looking forward for the reply~!
Prove N. said:
Some small details needed I guess. These are mandatory for flashing w/ Odin anyway:
0. Firmware is downloaded from known site like SamMobile or Updato.
1. Odin version is 3.12.3
2. Firmware matches your model name (which i guess you have)
3. Flash all 4 (BL/AP/CP/CSC)
It seems like your phone stuck in erasing tho. Maybe try replace the CSC with the HOME_CSC included in zip file.
( The HOME_ one is basically the same with normal, except it skips wiping data)
Looking forward for the reply~!
Click to expand...
Click to collapse
I've run everything but it still doesn't work

Phone Bricked or Infected - weird artifacts and bootloop (S4 i9505)

MY PROBLEM IS INSANELY RARE AND (propably) HARD TO FIX
Hello!
I've had i9505 for over 4 years now, I had many problems with root, custom rom etc but I always find ways to fix them - not this time!
Since yesterday, I can't boot to the system. It started when I was just in my ES file explorer and suddenly some weird artifacts popped up and I couldn't see anything (its not a physical screen problem!) then my phone turned off itself so now, I'm trying this:
Hikd power button --> *short vibration* --> Samsung S4 logo pops up --> black screen --> again vibration --> ... and again and again. It just loops here.
So I left it for a night hoping that when I wake up it will be finally working again but no, NOW it was stuck on 'SAMSUNG' logo (the one with a blue background). So I pulled out the battery and the phone started restarting again (boot loop).
But there is something new about this situation. Every 2 or 3 restarts there are ARTIFACTS on the screen. For now, I've experienced 3 different ones and I managed to catch one of them with camera (see image below)
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There is another one with a blue code in really small size, couldn't catch it fast enough tho.
This is what I have been doing with my phone before all this crap happened:
1. I installed 'Udemy' app from Google Play
2. I installed Modded Google Play via Lucky Patcher
3. I updated Lucky patcher
4. I edited build.prop to make my phone visible as s7, but then i changed it back
I think these artifacts may be caused a virus or just broken system files - I don't know :/
And pretty much that's it. I really want to know what possibly could cause this issue.
Please, everyone, I've always found ways to fix problems without flashing phone, so I believe I can now.
I have access to download mode and TWRP recovery.
But one more thing about TWRP - when I try to copy a file or wipe cache, error message pops up "E: Unable to mount storage". Is it possible, that for the first time ever my phone actually got infected?
If I catch any new artifacts, I will show them here.
I would be grateful for any help at this point, thanks
LOGCAT FILE:
https://pastebin.com/sPDJ0QQP
TWRP RECOVERY FILE:
https://pastebin.com/2Y0Fmew5
//Edit I'm not sure if the images are visible although the links are okay

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