Samsung g900x bootloop - Galaxy S 5 Q&A, Help & Troubleshooting

Hi folks,
After weeks of gruesome trial-and-error, trying all sort of guides, I am obliged to turn to you guys for wisdom in my matter.
I possess two identical Samsung S5 demo units. After a couple of days, I've decided to flash the firmware of both of these smartphones with regular S5 firmware, so I can use them as regular wifi-only smartphones, using the following guide:
http://forum.xda-developers.com/showthread.php?t=2733083
I followed the instructions, and everything went smoothly, for the first S5. But then, when I tried to do the same process on the second one, after successfully flashing in Odin, the phone entered some sort of bootloop, where a blue text appears saying "recovery boot", and nothing else happens; in which I simply cannot enter recovery mode. Due to the fact that the process succeeded previously, I have no backup.
What I would like to know is a way out of this state, either through a different firmware, or any other methods you can throw at me.

Related

Noobs phone won't start - can't find the answer. Feeling dumb as my brick phone.

I've rooted and replaced the ROM on 3 other Android devices. I've spent two or three nights on this. Googling and reading page after page to try to get this right. I know I'm seriously lacking in knowledge, but I just can't stand the bloatware and lack of control over an OEM ROM. I knew I was taking a risk, but I did my best to be diligent without spending an excessive amount of time. All that said, I appreciate, in advance any help anyone can offer me. Whether that's direct advice or directing me to proper resources that I can't seem to find.
Samsung S5 SM-G900P (kltespr)
I had rooted it. I replaced the Sprint stock ROM (5.0.1 I think) with CM12.1 (which just got an OTA). I had TWRP 2.8.7 on it.
Unfortunately, I needed my research suggested I needed a Touchwiz ROM in order to activate phone service on the cell provider I'd chosen (Ting).
So I selected MOAR v7 and started following the directions here:
at galaxys5root.com/sprint-galaxy-s5-custom-roms/moar-lollipop-rom-for-sprint-galaxy-s5-w-2-8ghz-oc
I made a backup. I wiped the system/cache/davlik/etc.
I installed the Android 5.0 Bootloader TAR (G900P NDK Lollipop) per the instructions via Odin and using the Bootloader option. The flash failed. I can repeat the failure (ran Odin as admin, tried multiple USB ports, restarted the computer etc). I've since tried to send several recovery ROMS or OS ROMS (pardon if I'm using the wrong terminology here) to the device, but all I can get is download mode or a screen that says Samsung Galaxy S5 powered by Android (with Kernel is not Seandroid enforcing at the top). Sending TWRP via Odin has worked with a PASS, but still can't startup the device.
I can provide more detailed logs or information about where I'm stuck and how, but on the off chance that this is an obvious thing I'm going to stop here unless more detail would be useful.
Again, I'm grateful in advance for any help.
Moshker
Follow up and how I fixed my brick
This post is intended as a follow up in case anyone runs into a similiar problem and stumbles onto my post.
After trying several different bootloaders, including the stock ones from Samsung (multiple download attempts, very slow speeds, some didn't pass md5 check), and full ROM efforts via Odin 3.10.7 I was finally able to get one ROM to take.
G900PVPU3BOG1_G900PSPT3BOG1_SPR from androidfilehost.com/?fid=24052804347794921
After getting the phone activated on Ting I used Odin to push Chainfire Auto Root (408). I verified root after restart. Used Nandroid to make a new backup. I used Flashify to install TWRP 2.8.7. I restarted to recovery and DID NOT use TWRP to wipe the system/data/etc and instead loaded the MOAR7.0.OA6 ROM. During the ROM install process it asked if I'd like to wipe system/cache/davlik/etc. I did. The ROM installed successfully. I ran a Nandroid restore to bring back my apps and data. Most restored properly.
I still don't really understand what went wrong, why my efforts to fix it failed, and why the last thing I tried worked.
Really loving MOAR. I'm using the Numix theme and it's just incredibly clean and fast. CM12.1 had intermittent micro-freezes/lags that were driving me a little nuts and MOAR is really smooth and quite fast. I was pretty disappointed in CM as I had it a long time ago on an original DInc (7.2!).
Anyway, if you're phone is bricked, keep on fighting the good fight.

[SOLVED (Factory Reset)] Failed Root Attempt - Will not boot past SAMSUNG boot logo

As the title implies, I've failed in my attempt to root my S7 Edge. I can access the custom download tool as well as the TWRP tool that I installed via Odin. However, I have no SD card and my attempts to use ADB have been unsuccessful. Right now I am looking for an option to reset my device to factory settings. I don't care about my previous data, as this is a relatively new phone. However, I believe my warranty is voided, and that is why I am posting here.
What are my options at this point? If it helps, a micro SD is arriving via Amazon tomorrow afternoon. Ultimately, I'd like to be able to install a custom ROM or root my existing Nougat that I started with (my original intention).
As for how the process may have failed, the tutorial I watched didn't seem to make it clear that I had to enable USB debugging. I enabled OEM Unlock, but not USB Debugging. Any help would be greatly appreciated. :good:
EDIT: Smart Switch does not support the device for emergency recovery. I really think I messed up my phone
EDIT 2: After suddenly disconnecting during the download process of a fresh firmware via sammobile, I restarted the device to reach an error screen telling me to use Smart Switch Emergency recovery. However, my device was not supported. Following a guide online, I clicked on the More tab at the top right corner of the Smart Switch program and chose "Emergency software recovery and initialization". I entered the relevant information for my device and the recovery process began (fingers crossed). After it has completed, I am now once again booting my factory firmware. I'll leave this post here because I couldn't find a similar post on the first couple pages of the forum or with the search function.
Now, can anyone direct me to a proper beginners' guide to rooting the S7 Edge? I'm fresh off of iOS, which I've used and been jailbreaking for the past nine years. I thought it would only slightly more complex, but I see due to the many different versions of the same device, rooting can be quite tricky.
Edit 3: New question which I can't find the answer to anywhere... Do you need an SD card to root? I'm resetting my phone for the second time now. Got a boot loop after using ADB sideloader to install supersu.
Where did you get the stock firmware? I have the unlocked sm-g935u... made an unbelievable stupid mistake and my three day old s7 edge is partly functional (only bare essentials), but whatever I did before wasn't wiped when I did a factory wipe so my phone thinks it's rooted even though it most certainly is not. (And many features and apps won't work bc of it. )
I can't find anything useful about theNougat firmware. I'm really desperate. My company bought me this and i broke it within a week. :'(

Tracfone SM-S902L: Bad ROM flashes, need to recover stock ROM

Hello all,
I recently discovered that my S5 was only running KitKat despite Marshmallow having been released for it. I checked for OTA updates and it found nothing, so I decided to flash a custom 6.0 ROM onto it (and for some reason I ended up deciding not to make a backup of the phone beforehand, the ultimate mistake).
The problem became that it didn't recognize Tracfone for my service provider and wouldn't connect to the mobile network. I then downgraded it to a 5.0 ROM, and it no longer even recognized the SIM card, saying there was none.
So I tried to flash the original stock ROM a few times, but every time either got errors from ODIN, the phone itself, or the TWRP bootloader.
Long story short, I seem to have screwed up multiple times trying to install a ROM to get around KitKat and now my phone appears to be softbricked. I can get into the TWRP menu and the "download" mode, but when trying to start the phone, it sits on the "Samsung Galaxy S5" screen with the "Set Warrenty Bit : kernel" text at the top left.
I'm just wondering if there's a way to fix it at this point, or if I've completely trashed the phone.
If anybody has suggestions or experience with this, all help is welcome!
Thanks!
MevNav said:
Hello all,
I recently discovered that my S5 was only running KitKat despite Marshmallow having been released for it. I checked for OTA updates and it found nothing, so I decided to flash a custom 6.0 ROM onto it (and for some reason I ended up deciding not to make a backup of the phone beforehand, the ultimate mistake).
The problem became that it didn't recognize Tracfone for my service provider and wouldn't connect to the mobile network. I then downgraded it to a 5.0 ROM, and it no longer even recognized the SIM card, saying there was none.
So I tried to flash the original stock ROM a few times, but every time either got errors from ODIN, the phone itself, or the TWRP bootloader.
Long story short, I seem to have screwed up multiple times trying to install a ROM to get around KitKat and now my phone appears to be softbricked. I can get into the TWRP menu and the "download" mode, but when trying to start the phone, it sits on the "Samsung Galaxy S5" screen with the "Set Warrenty Bit : kernel" text at the top left.
I'm just wondering if there's a way to fix it at this point, or if I've completely trashed the phone.
If anybody has suggestions or experience with this, all help is welcome!
Thanks!
Click to expand...
Click to collapse
Are you sure you have the stock firmware for the 902l and not the 903vl? The reason you didn't get the update for 6.0 is you have the 902l model. If you had the 903vl model you'd have 6.0. Straight talk never released it for the 902l model. No idea why being both models are very similar. Im not sure but if you make it back to stock on kitkat. I think you can use safestrap from the Verizon s5 to use some custom roms that run kitkat. If your bootloader is in fact unlocked and you can install a custom recovery other then safestrap. I believe you can install pretty much anything but I'm pretty sure straight talk ships the phones with the Toshiba chip so the bootloader isn't unlockable

Failed Root -- Bricked Bootloop SM-G930A

I'm completely at a loss at this point.
I attempted to root my Samsung S7 (AT&T) with Odin, and received an error. This is my first time ever rooting a phone, and I am generally oblivious to this kind of stuff. I disconnected the phone, and it began bootloop. I loaded it into download mode, and attempted to reset to stock. However, I have had endless issues trying to flash the stock firmware to my phone. At one point I unplugged the device once again, and I received the "use Emergency Restore" error screen. I tried to restore with Smart Switch, but I was not able to access my S/N (box is nowhere to be found, managed to find a S/N on Samsung's website since I registered it but Smart Switch wouldn't take it). So, I figured trying to restore with Odin was my last option. I have tried at least 3 different Odin versions, both modified and not, and not a single one of them has worked. I've received Complete(write) errors, Model Dispatch Fail errors, and Re-Partition errors. I've tried about 3 different firmware files as well, and while I think the one I have right now is most recent, none of them seem to be working. I thought maybe an issue I was encountering was that USB debugging or whatever it's called was disabled, but I have no way of telling because I cannot boot my phone.
I was fiddling around with all of this from 11pm to 6am last night, and picked it back up as soon as I woke up. I've been freaking out about this for hours.
I feel like I'm running in circles here. I don't understand what I'm doing wrong. I'm recovery bootlooped as well. The only thing I can boot is download mode.
I wasn't very cautious with this process, and I am completely unfamiliar with most lingo on these forums and the whole process in general. I really regret trying to do this. So -- is there anything else I can try to do to fix it? Or is my phone bricked for good??? I'm endlessly frustrated and have honestly felt like crying a few times over this. I shouldn't have messed with something I know nothing about. :crying:
I thank you for your patience in dealing with me as a beginner + appreciate any help you're able to give.
Cheers.
aerialslam said:
I'm completely at a loss at this point.
I attempted to root my Samsung S7 (AT&T) with Odin, and received an error. This is my first time ever rooting a phone, and I am generally oblivious to this kind of stuff. I disconnected the phone, and it began bootloop. I loaded it into download mode, and attempted to reset to stock. However, I have had endless issues trying to flash the stock firmware to my phone. At one point I unplugged the device once again, and I received the "use Emergency Restore" error screen. I tried to restore with Smart Switch, but I was not able to access my S/N (box is nowhere to be found, managed to find a S/N on Samsung's website since I registered it but Smart Switch wouldn't take it). So, I figured trying to restore with Odin was my last option. I have tried at least 3 different Odin versions, both modified and not, and not a single one of them has worked. I've received Complete(write) errors, Model Dispatch Fail errors, and Re-Partition errors. I've tried about 3 different firmware files as well, and while I think the one I have right now is most recent, none of them seem to be working. I thought maybe an issue I was encountering was that USB debugging or whatever it's called was disabled, but I have no way of telling because I cannot boot my phone.
I was fiddling around with all of this from 11pm to 6am last night, and picked it back up as soon as I woke up. I've been freaking out about this for hours.
I feel like I'm running in circles here. I don't understand what I'm doing wrong. I'm recovery bootlooped as well. The only thing I can boot is download mode.
I wasn't very cautious with this process, and I am completely unfamiliar with most lingo on these forums and the whole process in general. I really regret trying to do this. So -- is there anything else I can try to do to fix it? Or is my phone bricked for good??? I'm endlessly frustrated and have honestly felt like crying a few times over this. I shouldn't have messed with something I know nothing about. :crying:
I thank you for your patience in dealing with me as a beginner + appreciate any help you're able to give.
Cheers.
Click to expand...
Click to collapse
If you can at least get into download mode, then simply flash it with the latest STOCK firmware for your particular model.
That will bring it back to life, and you can attempt rooting it again, if you dare
aerialslam said:
I'm completely at a loss at this point.
I attempted to root my Samsung S7 (AT&T) with Odin, and received an error. This is my first time ever rooting a phone, and I am generally oblivious to this kind of stuff. I disconnected the phone, and it began bootloop. I loaded it into download mode, and attempted to reset to stock. However, I have had endless issues trying to flash the stock firmware to my phone. At one point I unplugged the device once again, and I received the "use Emergency Restore" error screen. I tried to restore with Smart Switch, but I was not able to access my S/N (box is nowhere to be found, managed to find a S/N on Samsung's website since I registered it but Smart Switch wouldn't take it). So, I figured trying to restore with Odin was my last option. I have tried at least 3 different Odin versions, both modified and not, and not a single one of them has worked. I've received Complete(write) errors, Model Dispatch Fail errors, and Re-Partition errors. I've tried about 3 different firmware files as well, and while I think the one I have right now is most recent, none of them seem to be working. I thought maybe an issue I was encountering was that USB debugging or whatever it's called was disabled, but I have no way of telling because I cannot boot my phone.
I was fiddling around with all of this from 11pm to 6am last night, and picked it back up as soon as I woke up. I've been freaking out about this for hours.
I feel like I'm running in circles here. I don't understand what I'm doing wrong. I'm recovery bootlooped as well. The only thing I can boot is download mode.
I wasn't very cautious with this process, and I am completely unfamiliar with most lingo on these forums and the whole process in general. I really regret trying to do this. So -- is there anything else I can try to do to fix it? Or is my phone bricked for good??? I'm endlessly frustrated and have honestly felt like crying a few times over this. I shouldn't have messed with something I know nothing about. :crying:
I thank you for your patience in dealing with me as a beginner + appreciate any help you're able to give.
Cheers.
Click to expand...
Click to collapse
Did you finally recover your phone? I'm in the same problem here since yesterday and feel your frustration right now. My phone is a Samsung S7 model SM-G930A from AT&T.
I found this thread https://forum.xda-developers.com/ve...-to-notes-root-install-xposed-unroot-t3411039 and I following the "Return to stock part", now downloading the firmware. Hope it helps.
I'm stucked in the blue screen "An error ocurred while updating the device software. Use the Emergency recovery function in the Smart Switch PC software". Of course I try the Smart Switch but says that my model is not supported!
How can you recovered the download mode? I press the on/off button for some seconds and the screen turn of, but it turn on again with the freaking blue screen "An error ocurred while updating the device software. ...". I tried all the possible button combinations.
Thanks and good luck.
Stock firmware
Make sure when you go into download mode and flash that plugging the phone in is the LAST thing you do. I.e. plug phone in only after it is in download mode and only after you open Odin. Secondly, make sure you flash the STOCK firmware, as in Android Marshmallow v6.0.1 . Additonally, make sure that the re-partition option is NOT ticked, and also you might want to try turning off auto-reboot, and just hold the power button after unplugging once the status bar is all the way full and Odin says complete. Also, you need to make absolutely sure that you're getting the firmware for your exact device. I.e. SM-G930A stock firmware is NOT compatible with SM-G930F models. You could also try reinstalling the Samsung drivers. I just flashed to stock firmware then updated back to Nougat yesterday, mostly without a hitch by following these guidelines. There is a download page on rootmygalaxy with all the stock firmwares, that's what I used (I'd link but I just registered here). There is a very helpful guide on droidviews about how to update to Nougat 7.0 once you have finished flashing the stock firmware.
If I were you, I would just avoid rooting altogether. Rooting for me caused very bad performance and battery life, and it wasn't really worth the trouble. Sure, getting in-app-purchases for free was nice but I never tried flashing a custom ROM or anything because most of the stories I read involved soft bricks, bootloops, etc.
Hopefully not having USB Debugging and OEM unlock ticked doesn't brick your phone, I'm doubtful that it will. For the poster above me, make sure your phone is all the way off, the download mode button combo is vol. down+power+home all at the same time, and hold them. A screen should pop up saying press vol. up to continue. If you're still having problems, I regret to say that I am also relatively new to this and I am not all that knowledgeable.
I just made a post about my unrooting process, hopefully it helps!
https://www.youtube.com/watch?v=o6ryOQepX2Q Video shows booting into Download Mode. Or take it to a Best Buy that has a Samsung Sales section.

Samsung Galaxy A5 2016 SM510F Only Download mode no booting

Hello, a friend of mine gived me an hard bricked phone.
As written in the title the phone is a Samsung galaxy A5 2016, SM510F.
Is not the first time I do things like that, but this phone is quite frustrating to work with.
I tried everything on this phone but the only thing that it does is the download mode.
It has no hardware problems, everything is working fine. The battery can't be removed.
I obviously tried to let it charge for long time. It does not even shows the battery icon while charging.
No boot, no logo.
I tried flashing 2 different version of the original ROM downloaded from SamMobile with Odin.
I tried an old and a new one.
I tried Flashing the Bootloader extracted from the ROM.
I tried flashing the 4 part ROM.
I tried flashing the PIT, since i suspected that my friend somehow cleard NAND while he was trying to flash the Root.
But out of this I get nothing. Odin gives a success but the phone only turned off and did not reboot.
I ask you if you have some different ideas, some similar experiences or some advices.
If you have some files please remember that I'm italian, so I need ITV.
I have no more ideas. Otherwise I will tell my friend to try to go to a samsung center.
Thanks.
You can try install custom recovery

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