Help, bootloop hard to solve - Galaxy S6 Q&A, Help & Troubleshooting

Hi and thanks for reading.
My S6 is the 920p model. I had it rooted with Magisk v16.0, stock kernel, no xposed, DRA2.
Let me explain what happened.
Yesterday, I woke up because of a call sound. Once I finished talking, I tryed to unlock my phone using the fingerprint sensor. It was unlocked but suddenly it rebooted. When it booted I tryed to unlock it using the pin (obviousy), but it rebooted again.
I made a few more attempts but no luck, so I booted in TWRP, backed up my data on my laptop and made a factory reset.
Now the phone doesn't finish the boot, it only stays at "Samsung" blinking logo and the led in blue dimming, restarting again and again.
I installed the NexusOS 8.1, it booted, the phone is usable, but this rom doesn't recognize modem, so, no signal (Sprint modem not supported).
Since it works with that rom installed, I tried installing the DRA2 stock firmware wich I had installed at the beginning, but again stuck at bootloop.
Next thing I tried was using .pit file, and flashing one by one bl, ap, cp and csc. It only reached the "Optimizing apps" and rebooted again. I booted into recovery, wiped cache and reached "Starting apps" but, te phone rebooted again.
Right now I'm using it with the NexusOS rom wich is pretty, but with te Ril issue.
So, that's my problem, hope somebody help me.
Finaly solved: I just had to mark (Phone EFS Clear)
Apparently EFS was corrupt. After that, I had to unlock it. It's working properly.

Related

Stuck at bootlogo

Hi, last week my phone started behaving very weird, out of nothing the phone freeze and stopped working and reboots itself and then got stuck on the boot logo, I tried to go to recovery via bootloader, but it didn't work, I tried everythging but it the only thing useful was connecting it to the pc and wiping cache via fastboot. This happened like 3 times a day. Now I have reflashed the stock firmware, installed some apps, xposed and other things, and when my device was ready, started behaving the same way like before, I don't know what to do now. please help.
Im using retail us 4.4.3 firmare.
this never happened with 4.4.2, is there any way to downgrade?
I followed this guide to restore stock firm: http://forum.xda-developers.com/showthread.php?t=2542219

[SOLVED] Constant reboot, need urgent help!

Hey guys,
I have encountered a serious problem on my device. Today I rebooted my phone once and it has just stuck on the samsung logo. Then the phone began to reboot without ending....It could not just start. With the help of TWRP I have made a full wipe and tried to reinstall my actual firmware Superman 1.10.5, but I always stuck at 25%, the phone did not respond to any actions. I even tried to flash the stock 4-file firmware with Odin, but it did not help, the phone constantly reboots. Sometimes it manages to boot to the stage where the sign "installation of applications" appears, but a while later it stucks again and reboots. Please, help me to solve the issue, because I am begininng to think that it would be unpossible to recover the phone. I am only able to enter the download mode or recovery, anything else does not work.
Thanks....
AuroraLX said:
Hey guys,
I have encountered a serious problem on my device. Today I rebooted my phone once and it has just stuck on the samsung logo. Then the phone began to reboot without ending....It could not just start. With the help of TWRP I have made a full wipe and tried to reinstall my actual firmware Superman 1.10.5, but I always stuck at 25%, the phone did not respond to any actions. I even tried to flash the stock 4-file firmware with Odin, but it did not help, the phone constantly reboots. Sometimes it manages to boot to the stage where the sign "installation of applications" appears, but a while later it stucks again and reboots. Please, help me to solve the issue, because I am begininng to think that it would be unpossible to recover the phone. I am only able to enter the download mode or recovery, anything else does not work.
Thanks....
Click to expand...
Click to collapse
Really sad to hear that story mate. First things first, I assume your BL version is matching with the firmware your flashing right. And when you go to TWRP, can you see /system and /data partition from the mount menu? If not, you have to perform a factory reset. I had issue like that with my Galaxy S7 and usually factory reset(not wiping) helped me with that situation. Since your system can boot up, but crashes after awhile, I do suspect that some of your partition might be corrupted(at least its what happened to me). So trying factory reset can be a good bet for you.
And... I think you have to provide more information with which variant you are using, and your BL version, TWRP version too, solve the problem quicker. Hope this information helps.
CenteaOSD said:
Really sad to hear that story mate. First things first, I assume your BL version is matching with the firmware your flashing right. And when you go to TWRP, can you see /system and /data partition from the mount menu? If not, you have to perform a factory reset. I had issue like that with my Galaxy S7 and usually factory reset(not wiping) helped me with that situation. Since your system can boot up, but crashes after awhile, I do suspect that some of your partition might be corrupted(at least its what happened to me). So trying factory reset can be a good bet for you.
And... I think you have to provide more information with which variant you are using, and your BL version, TWRP version too, solve the problem quicker. Hope this information helps.
Click to expand...
Click to collapse
Yep, you are right, BL versions always matched firmwares. I tried to wipe the phone with TWRP 3.0.2.3 and also to make a factory reset with the stock recovery. The stock firmware, which I tried to flash, was G930FXXU1BPH6_G930FOXE1BPH1_SER consisting of 4 files including BL,AP,CP and CSC. After 3rd or 4th flash of the same stock firmware the phone suddenly became alive and began to boot. Wu-huuu:silly: I was happy as a child. After having successfully launched the stock rom I have again flashed TWRP 3.0.2.3, went to "wipe" option and formatted data. Then I have installed a Superman Rom 1.12 and everything went the right way. I don't understand only one thing: why after having wiped the phone several times and having reseted it through the stock as well as TWRP recovery it didn't want to boot.
As you said, I suppose that the one of partitions was corrupted. Oh damn, I thought that I won't be able to resuscitate this phone.
I have flashed about 20 phones during my life, but I have never ever encountered such serious problems.

Samsung Galaxy S6 Edge is not booting even after a factory reset

My Samsung Galaxy S6 Edge is not booting even after a factory reset
A mobile app. for Android was installed successfully and since then I’m only having issues with my Samsung mobile:
- Since the installation of both the Hockey & Mobile Banking apps, my mobile freezes during any regular action and after a few seconds the device auto-restarts itself intermittently; this happened during the weekend while in use;
- Sunday night I uninstalled both the Hockey & Mobile Banking apps and the phone continued to freeze and restart intermittently. I was able to boot in SAFE MODE.
- This morning after the phone was turned off and turned on, the phone is not loading; the boot is looping and unable to reach the menu. I’m able to boot in SAFE MODE.
- This morning I did a Factory Reset, when done I get the “welcome” screen and right thereafter, the mobile freezes, auto-restarts and the boot keep looping.
Any help would be highly appreciated.
Hey guys, any suggestions...? I tried last night restoring the OS using Samsung Smart Switch application and the process went just fine the first time and during the setup process the phone just restarted against and for stuck in bootloop again.
I did a second attempt but after the PC is don and the phone boots it gets stuck.
Sometimes after restoring stock firmware and you get a bootloop, you have to boot to stock recovery and factory reset then wipe cache partition.
I know you said you did that once before you posted, you did that before you used SmartSwitch. Have you tried factory reset since restoring with SmartSwitch?
Yes, I did with SS last night; I did it again this morning and after completing the 100% software download, it started updating the device and at 97% it stopped and got the message "FAILED".
now as we speak, I restarted it again and now it's at 66^ downloading the files.
How can I perform a clean install using SS...? or do I need ODIN...? I want to keep the mobile as original as possible.
If you can find your stock firmware, download it and flash it with Odin, it's more reliable.
Maybe a stupid question: Where can I find my stock firmware...?
My info:
PDAIX / CSCI2 / PHONE: PHH (XFA)
I found the Firmware on SAMMOBILE: https://www.sammobile.com/firmwares/galaxy-s6-edge/SM-G925F/XFA/download/G925FXXU4DPIX/108273/
Is this a stock Firmware and reliable source...?
Sammobile is a very reliable source, if that firmware is the newest one for your model number and country/region/carrier then you're good to go.
I did install Firmware corresponding to my phone (PDAIX / CSCI2 / PHONE: PHH (XFA)) using Odin, I can use the phone for like 2 or 3 minutes and then it freezes, restarts and gets into boot loop.
Any more drastic measurements to take...? Is there an online tool to test the hardware function(s)...?
After flashing stock firmware, have you tried booting to stock recovery then do the factory reset and wipe cache then reboot.
Yes, I did...!
In ODIN, do I load only the "AP"...?
In most situations, AP is all you need if the firmware is an all in one firmware file, if you have a 4 part firmware then you need to put each part in its corresponding tab/slot in Odin.
Sometimes you have to flash more than once to be successful.
My phone is running like a horse now...! No more intermittent restarts nor boot looping.
I just did a clean install of Android 7.
The clean install of Android 7 went fine and now it's working back again, was because I changed the "Reactivation Lock" to OFF; I think this helped.

J415FN bootloop - stock firmware doesn't resolve the issue

Alright, here's the situation I'm in. My friend's WiFi wasn't turning on so I first thing I did was reset the network settings to factory defaults which didn't help.
Next, I upgraded his OS OTA through settings pane, again no cigar. I then went to check if BT was working and it did turn on with no problem, or so I thought. Despite it being on, it wasn't seeing any BT devices I could see with my own phone and PC.
As a last resort I backed up his phone with Smart Switch and went for a factory reset. Boy, was that a big mistake. You see, when the phone went through the resetting motions, it got stuck in a bootloop. First the Samsung J4+, secured by Knox screen would show up followed by Samsung logo which would run for few seconds and then the phone would reboot.
What I tried next was going to recovery mode by pressing Volume up + power button. There I went to clear cache and once again rebooted the phone to no avail. Same thing happened again.
Next I tried doing factory reset through recovery mode, again same thing.
After that I went to download latest firmware from sammobile with correct CSC and flashed it with Odin with no problem. The problem was though that the bootloop persisted through fw flash.
Next, I found PIT file for the phone and loaded it up in Odin so I could check NAND Erase and Repartition options alongside loading up all the firmware files. This went smoothly, flash was erased and reformatted/repartitioned, Odin did its thing, firmware was loaded up to the phone, but again, bootloop persisted.
I drained the battery by letting it loop until it died, charged it back but that didn't help either. I also tried flashing several different CSC firmwares to no avail. Tried all 3 available firmware versions with binary counter of 6 (BTG1, BTE1 and BRB3).
Video at x7 speed: streamable com/uhyzpm
Unfortunately, I didn't have the presence of mind to enable OEM unlock before doing the factory reset so loading the phone with TWRP is not an option. I can't even load older versions of stock firmware either because the binary check fails. Am I SOL on this one?

Galaxy S8 stuck in bootloop

My S8 randomly froze yesterday, shut off, and wont boot since. I tried a factory reset with twrp, didnt work. Normally, I'd just reinstall the firmware, but Odin doesn't detect my phone. So now, I have a few questions: What could the original problem be, how to fix that, why doesnt Odin detect my phone, and how fix that, and also additionally how to see my model number in twrp because I'm not 100% sure about it. Any help is appreciated. Thank you!

Categories

Resources