Okay. I was messing around with my firmware which I've done in the past. I've had a few problems then due to my phone model being obscure (Samsung Galaxy S6: SM-S906L). I've always had a copy of the firmware saved to my computer in the event of a bootloop or a similar issue, I figured I could just flash it with Odin to fix it. I have also done this in the past. After accidently wiping my phone, I went to re-install Magisk, but noticed my phone trying to push an update. I let it go through without much though and after it finished saw it didn't change much. I carried on with re-installing Magisk when I figured I might as well fix some problems I had with booting the phone (I would have to boot it into download mode then recovery to get it out of a bootloop each time I turned it off). I carried on with flashing my saved firmware to fix the problem. Everything flashed fine except the bootloader. It's come to my understanding now that because I let the update carry through with my phone, my saved firmware is no longer compatiable dispite the fact that it didn't change my android version. So now I have a bootloader installed that is meant for a higher update without my known ability to downgrade. Due to the obscurity of my phone model, I can't find anything to bring my firmware up to what my bootloader is at. So now my phone is stuck in a bootloop with the ability to access download mode, but recovery mode simply gives me a "recovery is not seandroid enforcing" error. I would greatly appreciate it if someone has any advise they could give me.
Related
Hello everyone,
My Galaxy S6 G920I has started shutting down repetitively. I was on stock and not rooted. After it happened a few times I decided to hard reset it and delete cache but it would get stuck on starting apps screen etc. After many attempts the phone finally started the user's guide for logging in etc. I was getting crash errors for settings and other things. It finally went in only to start shutting down again. Seeing how the apps were crashing I thought that there might be an issue with the stock ROM so I decided to flash a new one. I was having trouble finding my specific so I went for another one found here. I couldn't flash it with ODIN because it was on a zip format so I flashed TWRP on the phone.
The error recovery is not seandroid enforcing is now showing on different versions of twrp (2.8, 3.0).
I can't flash any ROM now and the one found in the device keeps shutting it down.
I don't believe it is a hardware issue as the phone stays on without issues on download mode. Any help on what steps to follow next would be highly appreciated.
apostol96t said:
Hello everyone,
My Galaxy S6 G920I has started shutting down repetitively. I was on stock and not rooted. After it happened a few times I decided to hard reset it and delete cache but it would get stuck on starting apps screen etc. After many attempts the phone finally started the user's guide for logging in etc. I was getting crash errors for settings and other things. It finally went in only to start shutting down again. Seeing how the apps were crashing I thought that there might be an issue with the stock ROM so I decided to flash a new one. I was having trouble finding my specific so I went for another one found here. I couldn't flash it with ODIN because it was on a zip format so I flashed TWRP on the phone.
The error recovery is not seandroid enforcing is now showing on different versions of twrp (2.8, 3.0).
I can't flash any ROM now and the one found in the device keeps shutting it down.
I don't believe it is a hardware issue as the phone stays on without issues on download mode. Any help on what steps to follow next would be highly appreciated.
Click to expand...
Click to collapse
Update it via smart switch it will turn on after that for sure. Or download the latest firmware via samfirm and flash it with Odin.
Thanks!
ammarwajihi said:
Update it via smart switch it will turn on after that for sure. Or download the latest firmware via samfirm and flash it with Odin.
Click to expand...
Click to collapse
I tried flashing the stock rom with ODIN and the phone successfully boots now. So a big thanks for that as it is progress. BUT the issue I was orginally having persists: The device keeps turning off 10-20 seconds after booting. Do you have any idea why that might be?
Sometimes it will freeze first and then turn off but never stay on for longer.
I have tried Safe Mode and turning all connectivity related modules off.
apostol96t said:
I tried flashing the stock rom with ODIN and the phone successfully boots now. So a big thanks for that as it is progress. BUT the issue I was orginally having persists: The device keeps turning off 10-20 seconds after booting. Do you have any idea why that might be?
Sometimes it will freeze first and then turn off but never stay on for longer.
I have tried Safe Mode and turning all connectivity related modules off.
Click to expand...
Click to collapse
This is weird don't know what the problem might be. Still I suggest you to flash it with smart switch once and see.
Hello all.
I'm new to modifying my android (Galaxy S7 G930A) and could use some help. I have successfully rooted my phone, but have had some issues trying to flash a custom recovery. I was trying to flash TWRP but for some reason it didn't work, and I would always boot into the stock recovery.
Today, I screwed something up while trying to figure out my host of issues (I was also trying to figure out why I kept getting a "dm-verity verification failed" notice when flashing). Using the TWRP Manager app, I tried to install the recovery that way and it kept giving me an error that it was either already installed or encountered an issue of some kind. Knowing it wasn't installed, I looked for a different route. Long story short, I downloaded Flashify and then manually downloaded and flashed the TWRP recovery img and a "no-verity-opt-encrypt" file - which I read would fix the dm-verity error I was receiving.
I believe that's all I did before this recovery boot issue starting occurring.
Now, when attempting to boot into recovery (no matter what way, through an app, manually, etc) the blue text "Recovery Booting..." appears for half a second and then disappears. If I'm holding down the buttons it will flash again and disappear again, over and over. If I don't hold down the buttons, when it disappears the phone boots up as normal. So now I can't seem to access recovery at all. I wanted to try going the hard/factory reset route, but obviously can't because I can't access recovery.
Also, I don't know if this is related or not, but now my laptop will not recognize my phone at all. Doesn't give me any options - it will charge, but no connection. I was hoping to load it into Odin and do a stock reset to start from scratch before flashing a custom ROM.
Edit: I tested and connected to a different computer just fine, so there's obviously some miscommunication going on between my phone and laptop.
Can anyone help me out here? Sorry for the long post, I'm just really frustrated. :crying:
So i've had a rough couple of days with my S7. It all started when I used fdisk on /dev/block/sda thinking it was my usb. The phone froze and so it rebooted it, i would bring me directly to the download screen where i was able to install twrp.
Then I had problems with the /efs/ folder mounting, and like a noodle, i wiped it without a backup. So once i booted the phone. I had no service provider. I spent all day trying to figure that out.
Next I tried to install my stock firmware which always worked in the past. At this point i kept getting "dm-verifty" errors. TWRP bypassed it so i tried to flash it again, only to notice FRP lock was turned on on it's own. So let me sum it up.
I can't boot with stock firmware, i tried multiple all leading to "dm-verity error" "No DRK"
I can't install TWRP because FRP is ON.
Even if i figure this out, i have to deal with my imei and efs problems after. I read about Combination but Odin seems to refuse it.
I haven't even had the phone for a month so I may be able to return it but i doubt it because my void is 1 (0x500), which looks bad so.. :laugh:
If anyone can help me i would greatly appreciate it, thanks in advance.
I'm really hoping you guys can help me out here. This is an S7 I bought from a Best Buy when I visited the US in 2017, and I got the Unlocked version so I would be able to use it back in my home country. Unfortunately, this is the second time I've had trouble with it in a span of 4 months and the first time it was a hardware problem and ended up quite expensive to get fixed.
Today I was using my phone normally when I decided to use the Google instant translation to translate something on my computer screen. That caused my phone to freeze, restart, and then tell me I was using an unauthorized flash and it was going to be locked, or something like that. Even after restarting a few more times, the phone would never get past that screen. I proceeded to factory reset/cache reset and from then on the phone just got stuck in a boot loop.
I learned that the fix would be to flash the phone. After a lot of work I found the G930UUESACSI1-20190930144640 firmware (the XAA version, for Unlocked) and successfully used Odin 3.13 at the Download Mode screen to flash my phone. It then restarted, went back to the blue screen, started installing some updates, when it was 100% it restarted again. Unfortunately, the loop remained. Galaxy S7 logo first, then the Samsung logo, then it just repeats.
I have also tried turning the phone off with the Recovery screen shut down option (since I can't seem to be able to turn it off with the power button right now), wait a few minutes, then turn it back on. Nothing changed.
Please, does anyone have any insight into this? What else could I possibly try, or what could I be doing wrong? I really don't want to send it to repair yet again in such a short time.
Many thanks in advance.
gabeblack said:
I'm really hoping you guys can help me out here. This is an S7 I bought from a Best Buy when I visited the US in 2017, and I got the Unlocked version so I would be able to use it back in my home country. Unfortunately, this is the second time I've had trouble with it in a span of 4 months and the first time it was a hardware problem and ended up quite expensive to get fixed.
Today I was using my phone normally when I decided to use the Google instant translation to translate something on my computer screen. That caused my phone to freeze, restart, and then tell me I was using an unauthorized flash and it was going to be locked, or something like that. Even after restarting a few more times, the phone would never get past that screen. I proceeded to factory reset/cache reset and from then on the phone just got stuck in a boot loop.
I learned that the fix would be to flash the phone. After a lot of work I found the G930UUESACSI1-20190930144640 firmware (the XAA version, for Unlocked) and successfully used Odin 3.13 at the Download Mode screen to flash my phone. It then restarted, went back to the blue screen, started installing some updates, when it was 100% it restarted again. Unfortunately, the loop remained. Galaxy S7 logo first, then the Samsung logo, then it just repeats.
I have also tried turning the phone off with the Recovery screen shut down option (since I can't seem to be able to turn it off with the power button right now), wait a few minutes, then turn it back on. Nothing changed.
Please, does anyone have any insight into this? What else could I possibly try, or what could I be doing wrong? I really don't want to send it to repair yet again in such a short time.
Many thanks in advance.
Click to expand...
Click to collapse
You need to clear the cache after flashing to get out of the boot loop.
Use the download key combo to restart. As soon as the screen goes black move to Volume up+home+power.
In the recovery menu choose clear/ Wipe cache, then choose reboot.
I apologize for not updating this thread before when it was still recent. The fact is that I didn't manage to fix my phone; clearing the cache after flashing did nothing to stop the loop.
I ended up taking the phone to the people who have fixed it in the past and after more than one month, they gave up. So I got my phone back and I want to try to give it another go before I just sell it for parts.
Unfortunately, my phone has come back even worse. Now it has no Recovery Menu to speak of, at least none that I can access; after a few seconds of the blue text on the top saying that it's entering recovery mode, it then proceeds to a blue screen saying: "Security Error: This phone has been flashed with unauthorized software and is locked.". I can still access Download Mode.
I have attempted flashing a few firmwares that I believe should have worked with my SM-G930U. Odin listed the attempts as "pass" and, after restarting and going back to the Download screen, it says the binary is Official. However, after trying to restart the phone normally, it starts displaying the blue screen again, and then, after going to Download mode, the binary is reverted to "Custom".
I believe right now the order of the day is to get the recovery menu to work again so I can do all the cache cleaning that seems to be required after flashing firmware. Any ideas at all on how I should proceed? Is there something specific I should download to fix the recovery menu?
How many files are you flashing in Odin, is it just 1 file in the AP slot, or 4 files: AP, BL, etc.? Also, is your phone rooted?
Drunkpilot said:
How many files are you flashing in Odin, is it just 1 file in the AP slot, or 4 files: AP, BL, etc.? Also, is your phone rooted?
Click to expand...
Click to collapse
Never rooted, was using the phone legit before it froze and entered boot loop. I flashed all 4 files, multiple times.
Someone tried fixing my phone a few days after I replied to this thread and some progress seems to have been made, but now the phone cannot get past a black screen with a "SBL Error! rdx_init!" in red text, and "upload mode" in yellow text. Still cannot access Recovery Mode, but Download Mode still works.
I did a little Googling on rdx_init errors and it seems I need a firmware dump from another G930U or something like that...any ideas on how I can proceed?
Flash it with Eng Boot in all slots using patched Odin. Reboot to recovery and wipe it. Reboot system. Then root it with advanced adb root. Links for all of this are here in xda. Enjoy
STA1NL3SS said:
Flash it with Eng Boot in all slots using patched Odin. Reboot to recovery and wipe it. Reboot system. Then root it with advanced adb root. Links for all of this are here in xda. Enjoy
Click to expand...
Click to collapse
Sorry, I'm not an expert at this by any means, I'm not sure what files to get. So far I've found and downloaded the following:
S7_Oreo_Nougat_Adb_Advanced_Root_V10
S7_Oreo_Nougat_Adb_Advanced_Root_V12
S7_Oreo_Su_Binary_Only_ADB_Root
But I had no luck flashing any of these cause my binary is 10. Is there any more help you can provide me? I really don't know how to proceed
gabeblack said:
Sorry, I'm not an expert at this by any means, I'm not sure what files to get. So far I've found and downloaded the following:
S7_Oreo_Nougat_Adb_Advanced_Root_V10
S7_Oreo_Nougat_Adb_Advanced_Root_V12
S7_Oreo_Su_Binary_Only_ADB_Root
But I had no luck flashing any of these cause my binary is 10. Is there any more help you can provide me? I really don't know how to proceed
Click to expand...
Click to collapse
I thought I had one in my phone, but I don't. If you look at the thread where you downloaded the Root_V12, you will see it. It's near the end of the thread somewhere.
Objective: I am hoping to be able to boot my existing system to recover data such as SMS, call logs, app data, and so on - obviously it was inadvisable to start messing around without backing up my data, particular with my amateurish capabilities. But that's the situation I am in. For some reason I thought that just replacing the Recovery was not going to risk my data. Its been over 5 years since the days when I would regularly flash my new phones with cyanogenmod, and my abilities were very basic even then.
Context: G930FD with stock rom, baseband ETC? - apparently for Dubai, which does not allow VoLTE or WiFi calling, which is what I was trying to fix when I got myself into this.
the Events:
- I enabled ADB and used Heimdall on Windows 7 to flash twrp-3.3.1-0-herolte.img
- initial attempts failed to complete download. I booted back into the system and applied OEM Unlock. Flashed successfully.
- chose the 'allow modification' option or whatever it says, not the Read-only option
- I did NOT check at that point to see if the system would reboot properly. I instead right away made a full back-up to my external SD.
That's all I did. After the back-up was complete I rebooted, and arrived at "SAMSUNG Galaxy S7" endless boot loop.
best guess: this is related to samsung encryption? TWRP file manager says that DATA is 0MB.
Again, I am desperately hoping that someone can help me recover my existing system. The threads I found on this subject all lead to wiping the phone and flashing a new rom.
thanks.
digging in deepr
I went ahead and rooted by loading SuperSU otg through TWRP.
Now I get passed the first splash screen that was previously boot looping (Galaxy S7, powered by Android), and I get to the 2nd splash screen (glowing SAMSUNG logo). It does not boot loop, just glows in and out endlessly and never loads.
Is that progress? Or maybe its worse.
t.krug said:
I went ahead and rooted by loading SuperSU otg through TWRP.
Now I get passed the first splash screen that was previously boot looping (Galaxy S7, powered by Android), and I get to the 2nd splash screen (glowing SAMSUNG logo). It does not boot loop, just glows in and out endlessly and never loads.
Is that progress? Or maybe its worse.
Click to expand...
Click to collapse
Reflash TWRP with Odin, boot TWRP, wipe cache, reboot.
Thanks.
I think greenman at sammobile had the answer --> NEW: S7 5 file firmware options (this forum wont let me post a link).
But I botched the execution and the CSC file overwrote my data. Crushing blow. I would say lesson learned, except that I already knew better and risked my data anyway. Sad.
I have a backup I made at the first launch of TWRP - but I assume its worthless since TWRP was not reading the encryption. Its only 3.7GB.
Side note - I did achieve the original goal of replacing the Emirati rom with one that activates WiFi calling and VoLTE.
Has this issue been solved?
I never recovered my data if that's what you mean. Did you look up greenman at sammobile? It sounds like someone followed his directions and was able to flash just the system files without overwriting their data. I think you had to modify the csc_home file. It was a bit beyond my skill level.
Oh, I was just wondering if your phone was still bricked. I didn't read your last message properly before replying lol. My bad.
I'm not personally having issues with a device, I was just curious if I could help at all.