Related
Here's the new How To Create a Goldcard procedure I did. Very newbie friendly and has a video as well:
How To - Create a Goldcard
http://theunlockr.com/2010/03/10/how-to-create-a-goldcard/
Enjoy!
You're too nice! I thought instructions on here were as simple as could be already!
ps. I like that background music you use to do this
thanks ... this really helpful
This is a great looking "how to" but I can't get past the Google Activation screen to try it. I don't have service on this phone yet and wont for a few week but was hoping to root this phone and get started on trying different ROMs.
Anyone know another way to bypass the activation screen other than this one which did not work for me http://forum.xda-developers.com/showthread.php?t=588017
Thanks
hexto said:
This is a great looking "how to" but I can't get past the Google Activation screen to try it. I don't have service on this phone yet and wont for a few week but was hoping to root this phone and get started on trying different ROMs.
Anyone know another way to bypass the activation screen other than this one which did not work for me http://forum.xda-developers.com/showthread.php?t=588017
Thanks
Click to expand...
Click to collapse
Try finding a friend or someone with data, and insert their SIM to get by it.
KAwAtA said:
Try finding a friend or someone with data, and insert their SIM to get by it.
Click to expand...
Click to collapse
lol. I have VZW and most of my friends have Sprint or VZW. The only person I know with a T-Mobile phone is in Jamaica for the next two weeks (yes, I'm jelous). Just wish I could get past that screen.
I use Android on an HTC Vogue which was a Windows phone originally but when I get to that Google Activation screen it gives me the option to skip it. I'm hoping to flash the phone and use it via wifi in my house without activating it.
anyone know if its possible to use a Goldcard successfully that was made in a different phone? I can't boot up to make one but I need it to load a boot image on fastboot so I can boot it up. aarrgh...
Thank you so much
fibofan said:
anyone know if its possible to use a Goldcard successfully that was made in a different phone? I can't boot up to make one but I need it to load a boot image on fastboot so I can boot it up. aarrgh...
Click to expand...
Click to collapse
same question here - anyone know how to create a goldcard in an other phone or without an phone?
Splasher2000 said:
same question here - anyone know how to create a goldcard in an other phone or without an phone?
Click to expand...
Click to collapse
I would also like to know this, if its possible to make one without a phone.
Hey guys and guyettes!
I somehow managed to put my One mini into a boot loop!
None of the options on the fastboot menu do anything other than turn the screen black and then go back to the boot menu... If anyone has any ideas on how to fix this it would be greatly appreciated!
And before anyone asks for whatever reason, no it is not rooted!
Things I've tried:
- Using ADB and SDK to unbrick it
- Hard resets, recoveries and factory resets
The last thing I did before it started the loop was install King of Thieves (a game).
Before the loop it ran out of power so I plugged it in and it went to the menu like it usually does then it just started too loop!
Thanks for any suggestions
~James
I'm currently chasing the same thing on my wife's phone. This is the 2nd time this has happened. (the first time was replaced by factory warranty). The ROM and everything is completely stock so I'm trying to unlock the bootloader using the HTC dev tools and I can flash the Unlock_code.bin but the screen never prompts me to actually unlock it... I'm hoping someone has a tried and true way of fixing this.
iceterminal said:
I'm currently chasing the same thing on my wife's phone. This is the 2nd time this has happened. (the first time was replaced by factory warranty). The ROM and everything is completely stock so I'm trying to unlock the bootloader using the HTC dev tools and I can flash the Unlock_code.bin but the screen never prompts me to actually unlock it... I'm hoping someone has a tried and true way of fixing this.
Click to expand...
Click to collapse
I have the bootloop menu which suddenly appeared for no apparent reason seeing as I haven't rooted the phone. It's an annoying problem that I see many people have except most people I see haven't quite got the same problem as myself...
Same issue...
I have a customer's phone, having the same issue. The customer brought it to me like this and I thought I would try to repair it. He is mentally challenged and so I really wanted to help him. But it's doing exactly what the OP stated. I even tried the same things before I found this thread. Unlocked the bootloader (but it did not actually bring up the screen to unlock the bootloader, the WinDroid Universal Toolkit simply stated it was unlocked). And yes, I did acquire the unlock.bin or whatever it was called.
So the phone will do nothing but reboot. I'm not sure how it got this way or if it can be fixed. That is why I am here.
Any ideas?
Thanks!
Da
PAinguINx said:
So the phone will do nothing but reboot. I'm not sure how it got this way or if it can be fixed. That is why I am here.
Any ideas?
Da
Click to expand...
Click to collapse
look here
http://forum.xda-developers.com/showpost.php?p=57727218&postcount=1365
probably this is the case
hopefully this will help out some people and the developers to make,fix,restore a not so popular phone. I did a total firmware dump and have uploaded to my 4shared folder. If anyone is interested or can tell me how to upload it here for developing i will be more than happy to share with those in need. I also have a spare phone that i would be willing to test anything made from the firmware dump i created.
PLEASE link?
Some time after rooting my Optimus Zone 3 VS425PP, I got locked into a boot loop. There are no custom ROM's, neither recovery nor OS. It's not bricked. Yet, anyway. The loading screen functions, then a little window that says "OPTIMIZING APPS 1 OF 5, PLEASE DO NOT REMOVE THE BATTERY..." appears. I've seen this before, but now, upon reaching "APP 5 OF 5," it reboots and repeats. I've tried several factory resets via the LG RECOVERY (MODIFIED,) as well as safe mode to no avail. Anyone? Anything? Help? The only recourse I can think of would be to re-flash the stock ROM, which I cannot find. Anywhere. Thanks, guys.
i tried contacting judthro for the same file; no luck
Cruise Elroy said:
Some time after rooting my Optimus Zone 3 VS425PP, I got locked into a boot loop. There are no custom ROM's, neither recovery nor OS. It's not bricked. Yet, anyway. The loading screen functions, then a little window that says "OPTIMIZING APPS 1 OF 5, PLEASE DO NOT REMOVE THE BATTERY..." appears. I've seen this before, but now, upon reaching "APP 5 OF 5," it reboots and repeats. I've tried several factory resets via the LG RECOVERY (MODIFIED,) as well as safe mode to no avail. Anyone? Anything? Help? The only recourse I can think of would be to re-flash the stock ROM, which I cannot find. Anywhere. Thanks, guys.
Click to expand...
Click to collapse
Unfortunately, I don't think this file is actually out there. I have REALLY been looking, even contacted the LG Development team. The LG Support Tool, etc. are not going to help you yet as they do not have the firmware on their servers yet. That's why the LG Support Tool will freeze when trying to do an Update Recovery on this phone. -- And I've tried them all: LG Mobile Support Tool, LG PC Suite, Verizon VS425PP Update Tool (from the mounted drive on the phone), LG Flash Tool 2014 to force different KDZ files. All provide nothing. All dead ends. The Optimus won't grab a COM unless it is the right signed firmware for the phone. You'll just sit there in Download Mode or in Debug mode forever with no result. We have to wait for the first update from LG from version VS425PP1 to whatever comes next so they have something to stick on their server. But...if you find something before then, please let me know! The update will eventually be released to the public. It'll probably just take a year or so.
Good thing is Wal-Mart sells these for under $12 (yes, that's right). I picked up seven of these quad-core bad boys at that deal. Just bugs the hell out of me I can't fix the one I over rooted.
this *might* be promising...
Cruise Elroy said:
Some time after rooting my Optimus Zone 3 VS425PP, I got locked into a boot loop. There are no custom ROM's, neither recovery nor OS. It's not bricked. Yet, anyway. The loading screen functions, then a little window that says "OPTIMIZING APPS 1 OF 5, PLEASE DO NOT REMOVE THE BATTERY..." appears. I've seen this before, but now, upon reaching "APP 5 OF 5," it reboots and repeats. I've tried several factory resets via the LG RECOVERY (MODIFIED,) as well as safe mode to no avail. Anyone? Anything? Help? The only recourse I can think of would be to re-flash the stock ROM, which I cannot find. Anywhere. Thanks, guys.
Click to expand...
Click to collapse
well i'll be. this may be a promising link:
google "4share lgvs425pp" and scroll down to the 4shared link. There is a 999MB RAR file claiming to be the VS425PP ROM dump. I'm downloading it now...checking it out.
It works???!!! i have to root this cellphone because i need use with other company...
its not super useful yet
johhnyapplefake said:
well i'll be. this may be a promising link:
google "4share lgvs425pp" and scroll down to the 4shared link. There is a 999MB RAR file claiming to be the VS425PP ROM dump. I'm downloading it now...checking it out.
Click to expand...
Click to collapse
hopefully the op will chime in for insight. The 999MB isn't much good. It appears to be a RAR dump of all the partitions, perhaps made from a lglaf.py script while in download. Nevertheless, i havent found any way yet to push the firmware dump onto the phone.
I've had no luck, either.
johhnyapplefake said:
hopefully the op will chime in for insight. The 999MB isn't much good. It appears to be a RAR dump of all the partitions, perhaps made from a lglaf.py script while in download. Nevertheless, i havent found any way yet to push the firmware dump onto the phone.
Click to expand...
Click to collapse
Meanwhile, as my LG cycles endlessly through my really cool "Jolly Roger" boot animation, I stumbled across a Kyocera Hydro Wave at Walmart for $20. I snapped it up to replace the LG Optimus Zone 3. I had big plans to root it, too., but I should've researched it first. The specs are great... but one check on Cyanogen's website probably would've saved me some trouble. Not one Kyocera device is listed there. XDA thread also throws red flags-no one can get root to stick. Well, I at least learned a lesson. Next time, I plan to purposefully buy a phone that can be rooted, has been rooted, has instructions online to do so, AND has at least one custom ROM available! No wonder this thing was $20! Keep us all posted if you stumble across a bootloop fix of some kind, and I'll do the same.
here is stock recovery for this device https://www.dropbox.com/home/Apps/Flashify/VS425PP/recovery
matt4787!
Either I am unable to open that link from an Android device OR the link given is to an unshared folder? It just asks me to log in and then says 'that folder does not exist in your DropBox...' PLEASE check out the SHARE link from within your DropBox and maybe share a new folder (and drop the stock ROM in there, along with what you might've used to flash it maybe?) We'd be very grateful!
Recovery
https://drive.google.com/file/d/0B1Nk8cx3_QgAeGNxZ1JrUmtFS0E/view?usp=drivesdk
Try now
hope my post helped some ppl. now to get twrp recovery ported here.
Thank you matt4787!!
Sent from my C6740 using XDA-Developers mobile app
To all who have a bricked,phone this phone has an update. Download the LG software assistant and put assistant in repair mode then boot phone normally and wait a bit. Run the repair assistant and let it run. Hopefully if everything runs well as it did me. Mine is restored and running.
Just ordered one. Is there root for this phone? Unlocked bootloader or forgetaboutit?
I rooted this phone and then tried to de-bloat, but I must have deleted too much. Now when I boot all I get is "Security Error - Authentication Fail #9"
I can get to Download mode, but none of the recovery programs recognize the phone. I installed the drivers, but still nothing. Is there anything I can do?
matt4787 said:
To all who have a bricked,phone this phone has an update. Download the LG software assistant and put assistant in repair mode then boot phone normally and wait a bit. Run the repair assistant and let it run. Hopefully if everything runs well as it did me. Mine is restored and running.
Click to expand...
Click to collapse
was your phone in a "security error" loop? for some reason the software assistant won't recognize my phone. it'll identify a plugged in phone when I connect it in download mode, but the device model never shows up
nikicollazo said:
was your phone in a "security error" loop? for some reason the software assistant won't recognize my phone. it'll identify a plugged in phone when I connect it in download mode, but the device model never shows up
Click to expand...
Click to collapse
i forgot to mention that you have to be in download mode to make the assistant recognize the phone. plus make sure the drivers for the phone are installed on your pc
matt4787 said:
i forgot to mention that you have to be in download mode to make the assistant recognize the phone. plus make sure the drivers for the phone are installed on your pc
Click to expand...
Click to collapse
hello as you did to install the drivers , I find no way to reconnoitre the mtp device ! Thank you
angelgabg said:
hello as you did to install the drivers , I find no way to reconnoitre the mtp device ! Thank you
Click to expand...
Click to collapse
this one is troubling. hmm you got the stock rom from lg? if so then try downloading the drivers from verizon.
Any updates on recoveries? I hate being scared of tweaking due to not having a backup .-. Anyone find something? Plz lemme know, thx! Btw kingo root 4.5 seems to have root for this phone but super sume seems to brick it. Just a heads up eace:
I'm new to the XDA Forums and even forums in general so if I speak out of place or anything like that I apologize ahead of time. So anyway, where do I start? I'll try to give you the short version. So I bought an LG Stylo 2(model: LG K540) through Cricket the day they came out. It was $170 phone. On the second day of using my new phone I got the bright idea that I'd try and root it BY MYSELF. I knew better but for some reason I had this false burst of confidence & thought I had everything under control. Well, thanks to Kingroot that burst of confidence didn't last long and there I was with a 2 day old phone BRICKED. Reason I never posted on the forums is because I've got a buddy who , in my eyes, knows everything there is to know about Android and thats who I'd normally go to when I wanted to root a phone so he's who I immediately turned to but even he couldn't figure it out. He couldn't help me unless we had the stock firmware or someone with the exact same phone and according to him we could some how use a backup of that phone to fix mine. Cricket just wanted to sell me another phone even though I was standing there with a 2 day old phone and LG just wants me to send the phone in to them, which I have no desire to do. I've searched all over the internet trying to locate the firmware because even I can fix the phone if I had that but nothing. Had hoped by now LG would have released the firmware but at this point who knows when that'll happen. I'd even pay for it at this point. Anyway, just thought I'd give the forum a shot on the off chance someone might be able to help me or point me in the right direction. Oh and if you were wondering what the phone does now, when I turn it on the LG logo appears like it should but then right as it appears you see a message in red lettering that says: BOOT VERIFICATION FAIL!!- CAUSE: MISMATCH_SIG_LEN And it just loops this over & over until you pull the battery out. Please someone help me!
send to lg said stop working no luck with tihs hard brick
Source code to rom¿?
I ran into basically the same situation as you. I'm currently downloading Android open source project on to a fresh install Ubuntu 16.04. I am currently in the middle of running sync.
I'm curious if there is anybody out there who would be willing to give a few pointers, on compiling the ROM from LG open source code. They told me I had to use it in the readme.txt.
Im a noob with fair knowledge of modding and stylo not stylo 2. There's no way to say for sure if this will work but on lg mm on h631 u need to unlock dev option in settings 1st. Make sure to check off oem unlock and usb debugging. Connect to pc and you will get a popup or 2, one will ask to allow pc to connect to phone, the second is to allow usb debugging. After you allow both, open cmd in your adb fastboot folder. Type " adb reboot bootloader." should reboot the phone to bootloader/fastboot mode. Then you type " fastboot oem unlock." you will see sending.. Once sending is done type " fastboot reboot." when the phone restart you should see bootloader unlocked on splash screen. Then i rooted with kingroot. Then use rashr to flash twrp. Then used twrp to flash supersu to get rid of kingroot.. My h631 now in business and i just started working on a port for lg ux 5.0. This is the guild i use for a better idea http://forum.xda-developers.com/lg-g-stylo/how-to/guide-lg-g-stylo-how-to-root-t-mobile-6-t3333916. You might need lgflashtool and kdz to unbrick..
NO NEED to beg.
I don't know very much but I know $$$ talks and since no one save the few who suggested contacting lg wants to help, Ill try. At the moment I am efforting a solution via the Chinese. I expect to have a working copy in the next 48hrs. when I do, we can arrange for you to get access to the mega.nz cloud and get urs.
say a prayer......
Francis
Hello Sir, I ran into same problem trying to root. If you can, can you please send me a link so that i can use my phone again. Thank You it will be greatly appreciated
can some one help me. i cannot use adb to unbrick
Please send me the link
facorbin said:
I don't know very much but I know $$$ talks and since no one save the few who suggested contacting lg wants to help, Ill try. At the moment I am efforting a solution via the Chinese. I expect to have a working copy in the next 48hrs. when I do, we can arrange for you to get access to the mega.nz cloud and get urs.
say a prayer......
Francis
Click to expand...
Click to collapse
Hi, can you please send me the link? I need it bad thx
if you cant boot into dlmode then your hard bricked, so find a way to get back to dl mode/recovery
BIN File
Hello, I have a Stylo 2 K540 from cricket, it is having issues with the Wi-Fi, it will not connect to either Wi-Fi or bluetooth, MAC address was set at 02:00:00:00:00 or something like that, I opened the phone and it has humidity sensor active, cleaned the affected area but it seems like it was useless, eventhough I was pretty sure that was not the main problem. I looked for some troubleshooting options and found non of use, firmware is sold for $30 online so it is not an option since I am not certain loading firmware will be of any help. I tried repairing MAC address via Octoplus using other addresses but was useless as well.
I have little to no experience with software on phones, but I like to read and learn. I decided to connect the phone to the computer and "Read full flash" on Octopus, I have created the Bin file, I have a perfectly working phone as well, I was wondering if there is any way to get the KDZ file from the Bin file doing some sort of conversion, or if I could do some sort of fix or workaround with this bin file, I can share it if anybody needs it or if it can be of any use to get the firmware
estebangtz said:
Hello, I have a Stylo 2 K540 from cricket, it is having issues with the Wi-Fi, it will not connect to either Wi-Fi or bluetooth, MAC address was set at 02:00:00:00:00 or something like that, I opened the phone and it has humidity sensor active, cleaned the affected area but it seems like it was useless, eventhough I was pretty sure that was not the main problem. I looked for some troubleshooting options and found non of use, firmware is sold for $30 online so it is not an option since I am not certain loading firmware will be of any help. I tried repairing MAC address via Octoplus using other addresses but was useless as well.
I have little to no experience with software on phones, but I like to read and learn. I decided to connect the phone to the computer and "Read full flash" on Octopus, I have created the Bin file, I have a perfectly working phone as well, I was wondering if there is any way to get the KDZ file from the Bin file doing some sort of conversion, or if I could do some sort of fix or workaround with this bin file, I can share it if anybody needs it or if it can be of any use to get the firmware
Click to expand...
Click to collapse
cna you possible sned me it I might be able too
no longer have the bin file
HERPDERP202 said:
cna you possible sned me it I might be able too
Click to expand...
Click to collapse
I am sad to say my computer stopped working and just got it back today, all my information was lost so I no longer have the bin file
bsimpson1858 said:
I'm new to the XDA Forums and even forums in general so if I speak out of place or anything like that I apologize ahead of time. So anyway, where do I start? I'll try to give you the short version. So I bought an LG Stylo 2(model: LG K540) through Cricket the day they came out. It was $170 phone. On the second day of using my new phone I got the bright idea that I'd try and root it BY MYSELF. I knew better but for some reason I had this false burst of confidence & thought I had everything under control. Well, thanks to Kingroot that burst of confidence didn't last long and there I was with a 2 day old phone BRICKED. Reason I never posted on the forums is because I've got a buddy who , in my eyes, knows everything there is to know about Android and thats who I'd normally go to when I wanted to root a phone so he's who I immediately turned to but even he couldn't figure it out. He couldn't help me unless we had the stock firmware or someone with the exact same phone and according to him we could some how use a backup of that phone to fix mine. Cricket just wanted to sell me another phone even though I was standing there with a 2 day old phone and LG just wants me to send the phone in to them, which I have no desire to do. I've searched all over the internet trying to locate the firmware because even I can fix the phone if I had that but nothing. Had hoped by now LG would have released the firmware but at this point who knows when that'll happen. I'd even pay for it at this point. Anyway, just thought I'd give the forum a shot on the off chance someone might be able to help me or point me in the right direction. Oh and if you were wondering what the phone does now, when I turn it on the LG logo appears like it should but then right as it appears you see a message in red lettering that says: BOOT VERIFICATION FAIL!!- CAUSE: MISMATCH_SIG_LEN And it just loops this over & over until you pull the battery out. Please someone help me!
Click to expand...
Click to collapse
you can go into download mode by pressing volume up key and inserting usb cable .press the volume up until you see download mode a firmware readed by z3x box is available on clamgsm forum you can flash it with z3x box crack .
Not sure if my phone is a lost cause and only good as a door stop. My phone at one stage would only display a screen asking me to plug into smart switch to recover the phone so I tried that but smart switch wasn't happening. I downloaded the latest stock rom and installed it successfully via ODIN but now my phone will not get past the boot logo. I can only get into download mode, Any advise on if I can get my phone working again?
Thanks
Andrew
andrew88 said:
Not sure if my phone is a lost cause and only good as a door stop. My phone at one stage would only display a screen asking me to plug into smart switch to recover the phone so I tried that but smart switch wasn't happening. I downloaded the latest stock rom and installed it successfully via ODIN but now my phone will not get past the boot logo. I can only get into download mode, Any advise on if I can get my phone working again?
Thanks
Andrew
Click to expand...
Click to collapse
Bro, I've been there and this is why I made an account on xda to see if my s6 (G-920F) can be fixed in any way. Yesterday I had the same thing as you when I tried to re-flash the phone with its proper, latest stock-ROM (UK/EE Nougat 7.0). Given how it hadn't worked, the update attempt through Odin screaming a big "FAIL!" at me, I was afraid I had bricked it completely, so I proceeded to re-install TWRP with Odin by putting the phone in download mode. I wiped the phone again with TWRP and now I'm not sure what I have to do as I am stuck with the UK Nougat bootloader and nothing else on it.
Before this whole ordeal I had rooted the phone and unlocked the bootloader following some instructions from a Youtube video and successfully installed a nighty build of LineageOS, which was buggy as **** (couldn't answer calls, use data, use the camera and a ****ton of apps were just not working). Dumbly enough, I thought I could just remove it through a wipe and put something else back on it but oh was I wrong.
Right now I'd just want to get my phone back to working (like you), as I am out of a job and need to be able to take phone calls with a normal, working phone.
Sorry I couldn't be of much help, but yeah maybe a first step towards fixing it would be to flash TWRP recovery on it and through the terminal, see what bootloader version you have with the command "getprop ro.bootloader". At least you will know the version of the broken bootloader you're experiencing difficulties with and *hopefully* an actual dev from the forums will entertain themselves in trying to solve this noobish puzzle we've created for ourselves.
Seriously, if there is a dev ready to board this crazy adventure with us, please help.
My namesake or username is pretty much a clue to what got me into this position.
I wish it was that simple for me mate, I cant access the recovery menu, I've tried flashing various recovery options but cant boot into any of them. I'm certain I could fix the phone if I could get to recovery. I'm now leaning towards it being a hardware fault with my phone. As you have access to recovery I think you may have more luck with your phone.
TerribleChoices said:
Bro, I've been there and this is why I made an account on xda to see if my s6 (G-920F) can be fixed in any way. Yesterday I had the same thing as you when I tried to re-flash the phone with its proper, latest stock-ROM (UK/EE Nougat 7.0). Given how it hadn't worked, the update attempt through Odin screaming a big "FAIL!" at me, I was afraid I had bricked it completely, so I proceeded to re-install TWRP with Odin by putting the phone in download mode. I wiped the phone again with TWRP and now I'm not sure what I have to do as I am stuck with the UK Nougat bootloader and nothing else on it.
Before this whole ordeal I had rooted the phone and unlocked the bootloader following some instructions from a Youtube video and successfully installed a nighty build of LineageOS, which was buggy as **** (couldn't answer calls, use data, use the camera and a ****ton of apps were just not working). Dumbly enough, I thought I could just remove it through a wipe and put something else back on it but oh was I wrong.
Right now I'd just want to get my phone back to working (like you), as I am out of a job and need to be able to take phone calls with a normal, working phone.
Sorry I couldn't be of much help, but yeah maybe a first step towards fixing it would be to flash TWRP recovery on it and through the terminal, see what bootloader version you have with the command "getprop ro.bootloader". At least you will know the version of the broken bootloader you're experiencing difficulties with and *hopefully* an actual dev from the forums will entertain themselves in trying to solve this noobish puzzle we've created for ourselves.
Seriously, if there is a dev ready to board this crazy adventure with us, please help.
My namesake or username is pretty much a clue to what got me into this position.
Click to expand...
Click to collapse
andrew88 said:
I wish it was that simple for me mate, I cant access the recovery menu, I've tried flashing various recovery options but cant boot into any of them. I'm certain I could fix the phone if I could get to recovery. I'm now leaning towards it being a hardware fault with my phone. As you have access to recovery I think you may have more luck with your phone.
Click to expand...
Click to collapse
Oh dear.
Yeah it does sound like something got deeply ****ed up in this case. I had the luck to somehow get past the smart switch error when the phone died of low battery. As I attached it to the charger I quickly boot it into download mode before the screen would become a bootloop again and that's where I was able to reinstall the latest version of TWRP recovery. After that, I was able to flash a stock ROM of Nougat that didn't have a ****ed up bootloader like I had. Specifically the one from this thread: https://forum.xda-developers.com/galaxy-s6/help/device-5-binary-3-s6-sm-g920f-t3706025
by forumber2.
It's the Netherlands stock-ROM. Not sure if you're from the US and the carrier would be wrong with that CSC, but it was a good bet for me. I got my phone back to working normally now.
Worst case scenario I'd say see if you have a phone repair shop nearby and ask them an opinion on what could be wrong. I'm just an amateur like you.
Still, I wish you the best of luck with it. Maybe there's still some hope. :/