SM-A605FN/DS - Stuck on combination Firmware - Samsung Galaxy A6 Questions & Answers

Hello guys.
I found a Galaxy A6+ with no real Android installed on it, only some tests rom. After a few researches, I found out that a combination firmware was on it.
A bit more of a research later, I tried to flash the latest Android Pie firmware available with no success. Tried the same firmware from another source, same result. Not much luck with an Oreo firmware.
I then tried to install TWRP to the device, wich succeeded (on Odin at least) but couldn't be installed because of the bootloader protection of the phone.
It seems that the combination firmware installed is too recent for the official firmware and the phone thinks I'm trying to downgrade.
Is my theory correct ? Can't I just erase the current firmware and clean install a new official one ? It's been two days and I've no idea what to do next...
Thank you very much for your help !

Related

Problem with installing Nougat firmware and apps onto Huawei P9 EVA-L09. Please help!

Hi.
I'm just wondering if anybody can help me please?
I have a UK Huawei P9 EVA-L09 with Marshmallow currently on it (B166) build I think. It is unlocked and has TWRP 3.0.2.0 Recovery installed on it.
I would like to upgrade to Nougat 7.0 and EMUI 5.0, but most of my attempts have failed and I have had to use the rollback method to get back to Marshmallow.
I have tried to do it by flashing an Update.zip and subsequent EU_Apps package.zip through TWRP to no avail.
I have also tried the 'Dload' folder method, also to no avail. The closest I've gotten is to build no B378, but it shows up as NRD90M Test-Keys on the Build No in the phone settings instead and all apps such as camera, NFC, Bluetooth are missing / not working etc. Trying to then flash the EU_Apps package through 'Dload' method doesn't alleviate the problem of missing apps.
Does anybody have any tips for what I could try to get it onto a working Nougat build with apps please?
Also, if anybody has any links to any relevant firmware etc, then that would be very helpful too.
I'm pulling my hair our trying to get this to work. Surely it's can't be that hard can it??
Many thanks, Bill.
Is your phone branded? For a particular UK network I mean? And if so are you flashing ROMs for that network?
I don't know if that's the problem but I was on Vodafone UK B137 (which is Marshmallow) and flashed the 2 update zips for a Vodafone Nougat ROM thru TWRP and it was successful. I then flashed an updated zip using the "dload method" and that was successful too.
When you say you flashed the zips in TWRP "to no avail", what exactly was the end result?
Also might help if you give the full version of your starting ROM, and what zips you were trying to flash, ie full names and sources.
I'm kinda new to this device forum but seems like people get varying results with different flashing methods, for no particular reason either!
Peace.
chris5s said:
Is your phone branded? For a particular UK network I mean? And if so are you flashing ROMs for that network?
I don't know if that's the problem but I was on Vodafone UK B137 (which is Marshmallow) and flashed the 2 update zips for a Vodafone Nougat ROM thru TWRP and it was successful. I then flashed an updated zip using the "dload method" and that was successful too.
When you say you flashed the zips in TWRP "to no avail", what exactly was the end result?
Also might help if you give the full version of your starting ROM, and what zips you were trying to flash, ie full names and sources.
I'm kinda new to this device forum but seems like people get varying results with different flashing methods, for no particular reason either!
Peace.
Click to expand...
Click to collapse
Hi. Thanks for your reply.
When I tried to flash .Zips through TWRP it kept coming up with errors and didn't flash them (something about being umnable to mount /System).
I was on EE UK, but found a method yesterday for debranding my phone and setting it to C432. I also managed to successfully flash C432B182 firmware on it.
I have since attempted to flash Nougat B360 using the 'Dload' method and now my phone keeps asking me to enter my password to decrypt storage. Multiple attempts to reset my phone and wipe cache partitian don't seem to be working. Do you have any idea how I can get around this?
It's so hard and it's so annoying how other people seem to be getting it right and mine is proving to be a swine. Makes me want to get rid of it to be honest and get something easier.
Thanks again, Bill.
I'm concerned that this may be bricked right now. No amount of using eRecovery to reset the phone will stop it from going onto the dreaded 'enter password to decrypt storage' screen! I will see if I can re flash it using Fastboot, but I'm a bit concerned right now...
I have an O2 Branded one. I'm too chicken to mess with it in case I brick it!
Just waiting for the official UK O2 OTA update to arrive &
tmohammad said:
I have an O2 Branded one. I'm too chicken to mess with it in case I brick it!
Just waiting for the official UK O2 OTA update to arrive &
Click to expand...
Click to collapse
Probably advisable unless you absolutely know what you're doing and don't mind taking the risk. I'm a bit annoyed with Huawei and my carrier, they are always so slow with providing updates and Hmui 5.0 is only what Hmui 4.0 should have been in the first place. I'm done with these manufacturer's stupid over bloated overlays and will be going to an official Google phone in future!
If you can get it into fastboot mode, flash TWRP, then you should be able to progress from there, hopefully by at least formatting data to get rid of the encryption! Sounds like.a royal pita tho to be honest.
When I flashed to Nougat from MM using TWRP I got a bunch of error messages too, but it (eventually) booted up ok....
chris5s said:
If you can get it into fastboot mode, flash TWRP, then you should be able to progress from there, hopefully by at least formatting data to get rid of the encryption! Sounds like.a royal pita tho to be honest.
When I flashed to Nougat from MM using TWRP I got a bunch of error messages too, but it (eventually) booted up ok....
Click to expand...
Click to collapse
Hi again all.
Success! I finally managed to crack it.
I downloaded MM Firmware version C432B136 and used Huawei Extractor to extract the Boot.img, Recovery.img and System.img files and was able to boot into Fastboot mode fortunately. I used a Command Prompt to unlock the Bootloader again and flashed each .img file in line.
The phone booted up into the B136 firmware and I was then able to update OTA to B166, but not B182 strangely. So I downloaded a B182 version firmware and placed it in the 'dload' folder of the phone's S.D Card, before forcibly flashing it by holding volume up, volume down and the power button on boot up.
I subsequently used the below link, which showed me how to use Huawei Updater and HiSuite to update to B361 firmware.
https://forum.xda-developers.com/showpost.php?p=70594380&postcount=2
Once on Nougat B361 firmware, my phone's update setting prompted me to update to the latest B378 firmware OTA.
Finally, to achieve Root status I followed the below guide and am now running root with SuperUser and BusyBox installed. I'm happy to report that both Nougat 7.0 and HMUI 5.0 are running smoothly on my phone and all features are working (i.e. Bluetooth, Camera and NFC) and performance and battery life are all noticeably better than ever.
https://forum.xda-developers.com/showpost.php?p=70927601&postcount=456
Be aware that my phone is EVA-L09, so I followed all guides and downloaded all firmware that related to my specific phone model.
Phew! Thanks for all of your help and good luck to those who are attempting to get this working.
Bill.

[q] *how to update rooted note 5 from mm to nougat?*

Peace All...
I am currently on Minotauras ROM (MM) and would like to update my Note 5 920G to the latest Nougat firmware---so I can download a Nougat custom ROM (i know one is not dependent on the other, but I was always taught that if the base changes, its best to update the firmware to avoid any potential problems). However, I'm unclear as to what steps should be taken to update the firmware--I'm relatively new to SamSung devices. I know Odin is the update utility, but unclear whether I should first flash a "stock" Marshmallow Recovery and stock ROM--then take OTA...or can I just flash the Nougat firmware and then flash TWRP? What happens to my data & apps? Will all settings be erased?
Please advise.....
ZEDEK said:
Peace All...
I am currently on Minotauras ROM (MM) and would like to update my Note 5 920G to the latest Nougat firmware---so I can download a Nougat custom ROM (i know one is not dependent on the other, but I was always taught that if the base changes, its best to update the firmware to avoid any potential problems). However, I'm unclear as to what steps should be taken to update the firmware--I'm relatively new to SamSung devices. I know Odin is the update utility, but unclear whether I should first flash a "stock" Marshmallow Recovery and stock ROM--then take OTA...or can I just flash the Nougat firmware and then flash TWRP? What happens to my data & apps? Will all settings be erased?
Please advise.....
Click to expand...
Click to collapse
1)You are on stock Marshmallow 6.0.1 right as i guess so? Then you have MM bootloader(But if you are on 5.0.1 lollipop bootloader then you need atleast upgrade you bootloader to 6.0.1, you can find MM bootloaders at Samsung galaxy note 5 android development thread anywhere mostly at Dr.ketan Rom N8 S8+ port/You can also find Nougat bootloaders there only)
2)Don't worry then if you want to upgrade to any custom nougat rom then you can simply download prefer one and install through TWRP as you installed Minotorus Rom(Assuming You are on Marshmallow Bootloader and Oem unlocking/Usb debugging options are enabled from Developers option)
3)Or if you want to update your stock firmware to official Nougat for updated model and bootloader after that want to try Custom nougat rom, then you can download official Stock 7.0 firmware for your device N920G and specific country if available from websites like sammobile.com or samsungupdates.com etc (I am unknown about your country afaik samsung released 7.0 for N920G for some specific countries atm, like for asian countries not for latin american countries)
4)Further Odin flashing guides you can find also here within forum only, if you have any query related to odin flashing you can ask me i will provide you Odin flashing guide also(Kindly don't forget to enable Oem unlocking and Usb debugging option from developers option before flashing anything using Odin or you may brick your device)
5)You can also flash official stock 6.0.1 and update through OTA to 7.0 but above mentioned method is easy to directly update to nougat(Only if official Stock 7.0 nougat firmware available for your device model no and country)
6)While updating to stock firmware using odin, all your user data stored on internal storage will be lost(If you directly flash custom nougat rom on minotorus rom then user data stored on internal storage will be there) so i will suggest you take backup of your current data
Peace!!
First off--THANK YOU DroidHackeR for your response. I was out of town so I coulnt respond sooner. But Yes...I'm on MM 6.01 and I would prefer to upgrade to the offical 7.0 firmware. My model number is 920G, which I think is an International model.I am in the Unite States and using Tmobile's bands. I looked on sammobile and saw that they did have the official firmware (but for Bangladesh, India--I didnt see anything that said International...and thats where I kinda got stuck, cause I dont know if that firmware would be compatible). With that being said--I guess my best option would be to flash an official stock 6.01 firmware and then take the update? I have OEM unlocking and USB debugging enabled.
Could you please walk me through flashing via Odin? Like where would I find the stock 6.01 firmware? Sammobile as well? I know I will loose my data..I've backed up most of my files.
Thank you again for help!
ZEDEK said:
Peace!!
First off--THANK YOU DroidHackeR for your response. I was out of town so I coulnt respond sooner. But Yes...I'm on MM 6.01 and I would prefer to upgrade to the offical 7.0 firmware. My model number is 920G, which I think is an International model.I am in the Unite States and using Tmobile's bands. I looked on sammobile and saw that they did have the official firmware (but for Bangladesh, India--I didnt see anything that said International...and thats where I kinda got stuck, cause I dont know if that firmware would be compatible). With that being said--I guess my best option would be to flash an official stock 6.01 firmware and then take the update? I have OEM unlocking and USB debugging enabled.
Could you please walk me through flashing via Odin? Like where would I find the stock 6.01 firmware? Sammobile as well? I know I will loose my data..I've backed up most of my files.
Thank you again for help!
Click to expand...
Click to collapse
Well you can always flash the MM firmware in odin then take the OTA but ive always just flashed the new firmware via odin just because it easy.
And flashing firmware via odin will not wipe your device unless you change your CSC.ive used odin literally 100s of time across numerous devices over the years and it never has wiped my device...common misconception for some reason.
But of course first you need to find the correct firmware for your device on sammobile.
Then once downloaded un zip it and load the tar in the AP slot in odin.
Occasionally a factory reset is needed for the device to boot and that will wipe your storage.
There are tons of tutorials on how to use odin...hit that search button, use Google or even hit you tube for videos (which are useful if your a total n00b since you can see how it runs so no surprises).
If you do it once after that it will seem so easy.
Sent from my S8 plus, Note 7, S7 Edge or S6
force70 said:
Well you can always flash the MM firmware in odin then take the OTA but ive always just uflashed the new firmware via odin just because it easy.
And flashing firmware via odin will not wipe your device unless you change your CSC.ive used odin literally 100s of time across numerous devices over the years and it never has wiped my device...common misconception for some reason.
But of course first you need to find the correct firmware for your device on sammobile.
Then once downloaded un zip it and load the tar in the AP slot in odin.
Occasionally a factory reset is needed for the device to boot and that will wipe your storage.
There are tons of tutorials on how to use odin...hit that search button, use Google or even hit you tube for videos (which are useful if your a total n00b since you can see how it runs so no surprises).
If you do it once after that it will seem so easy.
Sent from my S8 plus, Note 7, S7 Edge or S6
Click to expand...
Click to collapse
Hi,
Thanks for your inputs. I tried same steps for my N9208 dual SIM with stock 6.0.1 firmware from sammobile.
After Odin flash, boots to stock recovery and throws dm-verify check failed error.
Please share your suggestions.
TheRealFighter said:
Hi,
Thanks for your inputs. I tried same steps for my N9208 dual SIM with stock 6.0.1 firmware from sammobile.
After Odin flash, boots to stock recovery and throws dm-verify check failed error.
Please share your suggestions.
Click to expand...
Click to collapse
I would suggest that next time you use the search function to try and help your self first as learning is key here.
That said i did a quick search for you which led to many results but this is an excellent read.
https://forum.xda-developers.com/note5/help/how-to-solve-dm-verity-verification-t3293306/page2
force70 said:
I would suggest that next time you use the search function to try and help your self first as learning is key here.
That said i did a quick search for you which led to many results but this is an excellent read.
https://forum.xda-developers.com/note5/help/how-to-solve-dm-verity-verification-t3293306/page2
Click to expand...
Click to collapse
I did read that thread. Too many answers and not much clarity.
Hence asked you.
Anyway thanks.
TheRealFighter said:
I did read that thread. Too many answers and not much clarity.
Hence asked you.
Anyway thanks.
Click to expand...
Click to collapse
That was only one of numerous results which resulted from a quick search though i posted that because i am familiar with it.
Sent from my S8 plus, Note 7, S7 Edge or S6
*Need a working 6.01 Firmware for 920G International*
force70 said:
Well you can always flash the MM firmware in odin then take the OTA but ive always just flashed the new firmware via odin just because it easy.
And flashing firmware via odin will not wipe your device unless you change your CSC.ive used odin literally 100s of time across numerous devices over the years and it never has wiped my device...common misconception for some reason.
But of course first you need to find the correct firmware for your device on sammobile.
Then once downloaded un zip it and load the tar in the AP slot in odin.
Occasionally a factory reset is needed for the device to boot and that will wipe your storage.
There are tons of tutorials on how to use odin...hit that search button, use Google or even hit you tube for videos (which are useful if your a total n00b since you can see how it runs so no surprises).
If you do it once after that it will seem so easy.
Sent from my S8 plus, Note 7, S7 Edge or S6
Click to expand...
Click to collapse
Peace...
Well.. I searched YouTube video tutorials, GooGle searched and went to SamFirmware and downloaded a 6.01 stock firmware. However, the file I downloaded was for Bangladesh (I have a 920G model) and it failed when trying to flash it via Odin. So I downloaded another 6.01 firmware--this time for Brazil (as all tutorials have stated that as long as the model number is the same its ok to flash). At first the green loading bar was working and it got all the way through to radio image and then it failed---but now my system has been wiped and now my phone is bricked. Do you or any other member know of a 920G 6.01 firmware that is compatible for the USA? It appears the radios are not compatible causing it to FAIL in flashing it in Odin.
Any assistance would be greatly appreciated.
ZEDEK said:
Peace...
Well.. I searched YouTube video tutorials, GooGle searched and went to SamFirmware and downloaded a 6.01 stock firmware. However, the file I downloaded was for Bangladesh (I have a 920G model) and it failed when trying to flash it via Odin. So I downloaded another 6.01 firmware--this time for Brazil (as all tutorials have stated that as long as the model number is the same its ok to flash). At first the green loading bar was working and it got all the way through to radio image and then it failed---but now my system has been wiped and now my phone is bricked. Do you or any other member know of a 920G 6.01 firmware that is compatible for the USA? It appears the radios are not compatible causing it to FAIL in flashing it in Odin.
Any assistance would be greatly appreciated.
Click to expand...
Click to collapse
1)Did you try to put 4files firmware that comes with BL,AP,Modem,CL separately?
2)As You can get into download mode successfully kindly install samsung smartswitch on your phone>connect your device to pc while in download mode>open smartswitch>select emergency software recovery so that it will recognise your device as well as actual latest firmware for your device to be installed
3)If smartswitch doesn't help anymore, try with full firmware(4 files firmwate of any of Latin American countries as you stated for USA, may be the country's that lies near to you by region) but this time you need to uninstall smartswitch or Samsung kies in case installed as it could possibly mess up with Odin flashing
AssassinCreed said:
1)Did you try to put 4files firmware that comes with BL,AP,Modem,CL separately?
2)As You can get into download mode successfully kindly install samsung smartswitch on your phone>connect your device to pc while in download mode>open smartswitch>select emergency software recovery so that it will recognise your device as well as actual latest firmware for your device to be installed
3)If smartswitch doesn't help anymore, try with full firmware(4 files firmwate of any of Latin American countries as you stated for USA, may be the country's that lies near to you by region) but this time you need to uninstall smartswitch or Samsung kies in case installed as it could possibly mess up with Odin flashing
Click to expand...
Click to collapse
Peace AssassinsCreed...
Thank you for ur response. This is my first SamSung phone---I came from HTC and was familiar with their process of rooting and updating (which was a pain)--but I'm totally unfamiliar with Odin.
When you say put the files in separately---i'm not sure what you mean, cause when I extract the Update zip, I only get a a tar file---should I unzip in a folder?
Thanks again!!!
Use flash fire

Problem to update to 7.0 or go back to original ROM

Good morning all:
I am having a problem with my phone.
The history...
Bought a P9 EVA-L19 in Belgium and it came originally with version B127 (I think).
So, I decided to root it and so I used SRKTool to unlock bootloader, install TWRP and root.
Problems started when I tried to update to a newer ROM.
It lost the original look and some functionalities, like the random imagens in lock screen and some original apps (FM Radio?)
In the meantime I managed to update to B137. The look was ugly but I managed to solve it using Nova Launcher.
Then the phone started giving me the message there was an update to B342 but everything fails.
I tried to reblock bootloader with SRKTool but it fails, I tried to download and install with dload method and fails.
So, I'm stuck with B137.
I even tried to debrand using this method: https://youtu.be/JZVsIKtdgV4
But after the first step "changing oeminfo and custom.bin" I even lost the keyboard so I gave up following the next steps.
So now my phone has a ROM EVA-L19900B137 and I can't find a way of updating to android 7.0 and I can't go back to the original ROM with all the functions.
Tha only thing I haven't tried is an Update using TWRP.
Is there a final release of 7.0 that can be flashed using TWRP?
Or even the original ROM?
(no, I know I am stupid but didn't made a backup before root and updates :crying: )
Thank you so much in, in advance, for your time.
I am not expert in these stuff but when I completely removed my system I installed a rom with different cust after that I got c900 then again I removed system and just installed the old cust "c185" and version b161 and then it worked like a charm even updates are working
your original dload method should be working. Just flash an original firmware with your original cust. This will lock your bootloader and turn your phone to original. You will even get the OTA updates.
After that if there is still no nougat update for your phone, there is 2 option. 1st one is check if there is an update that has the same cust number with your phone and apply it.
If not so, you can do a debranding procedure. Here is the link for it: https://forum.xda-developers.com/p9/how-to/guide-debranding-to-c432-updating-to-t3551523
I managed to fix it.
Just in case someone has the same problem, I used the solutions/methods described on these threads:
1st
https://forum.xda-developers.com/p9/development/c432-oeminfo-flash-twrp-t3384903
2nd
https://forum.xda-developers.com/p9/development/stock-rom-dload-file-p9-eva-l09-b136-t3382818
thank you guys for your replies!

I’m confused and overwhelmed. Please help me get back into my phone.

So, I have an Honor 5C (I’m in Europe, if that’s significant), I’ve been rooted for a while and today I wanted to install a custom ROM. After installing TWRP using the official app, (I tried it with fastboot, but no success) I downloaded the LineageOS 14.1 ROM and tried to install it. This failed, I got error 7 and started googling the cause. No success. Right now I’m just confused with all the different 5C models and apparently different EMUI versions. My questions:
1. How do I know what model I have? (NEM-L21, NEM-L22, NEM-L51 etc.)
2. What’s up with the EMUI versions? I know I had 4.1.2 and never got a notice saying I could update to 5.x, so how are people on those versions?
3. Same for the Android version, I was on marshmallow 6.0 but other people are on nougat?
4. I wiped everything and am unable to boot right now. What ROM must I download to boot again? And is it possible for this to be nougat, instead of marshmallow which I was previously on?
Thanks in advance, I’m very new to this scene and all the different models and versions are kind of overwhelming me
First of all, you shouldn't use the official twrp, because that once partially bricked my phone, and you should have used EliteTWRP for installing the roms, because it required you to back up before some partitions, that official twrp couldn't, also, to answer your first question, you find it out in your phone's settings app, in the About Phone section, but since you didnt look at that before you flashed and deleted everything, I don't know how to figure it out without the settings app, also diffirent region phones get diffirent updates, my dad's honor 6 never got an update out of 4.4.2, but some phones had access to newer versions(not by flashing custom roms), also you should download some dload things i dont remember how to do it, never done that myself, but for that I'm pretty sure you need to know if you're using NEM-L21, NEM-L22, NEM-L51 or something like that

Good source for firmwares?

I'm looking for a good source of firmwares, i know the famous sites but some firmwares doesn't seem to be listed. I know in the time os Samsung KIES there were tools which communicated directly with samsung.
For example these firmware builds for the SM-G975Ux aren't listed on most firmware sites but have the December secutiry update with binary/bootloader version 8: G975USQS8IVL1 and G975USQS8IVL2
All the big sites have ROMs for that phone (same one I have). There is no "Ux" model... it's *U or *U1, with the latter being unlocked. IF you search for U1 ROMs you have many selections, but most get the XAA version which will usually change carriers automatically based on the SIM card.
The latest BL=8 version I see there is https://www.sammobile.com/samsung/g...M-G975U1/XAA/download/G975U1UEU8IWB6/1741280/ which is the February 2023 security update. I believe this is the last one we are getting (but I could be mistaken as there may be 1 more security patch, I don't remember).
There's U U1 0 W F N .... I'm looking for the oldest firmware with binary version 8, but it seems the sites don't show all firmwares available.... i'm looking for the oldest firmware with U8 bootloader (or any compatible bootloader with binary 8 version), i could have a look at all sites and try my luck... but they don't seem to have all data. but like i said i prefer some original source xml files... i saw some url's to original samsung servers but can't find them anymore.
There is already a firmware available with the march update.... but you have to be lucky to find them... i'm looking for original sources. like update.zip's and such
Found the first one....
https://fota-cloud-dn.ospserver.net/firmware/TMB/SM-G975U/version.xml
I'd recommend around sammobile and samfw. These are the two sources I use the most
hey!
after I wanted to update my g973f from "G973FXXUGHVK1" to "G973FXXSGHWC2" (I tried odin 3.13 and odin 3.14) and an error occurred, I can't install anything anymore... recovery and download mode work, and I can also flash the original firmware, but the device no longer boots into the system! even custom roms don't want to boot anymore
Can anybody help me further?
Ben1987 said:
hey!
after I wanted to update my g973f from "G973FXXUGHVK1" to "G973FXXSGHWC2" (I tried odin 3.13 and odin 3.14) and an error occurred, I can't install anything anymore... recovery and download mode work, and I can also flash the original firmware, but the device no longer boots into the system! even custom roms don't want to boot anymore
Can anybody help me further?
Click to expand...
Click to collapse
Do you mind explaining a bit more? Do you mean like that it boots you into recovery only or?
WooBLOATERRRR said:
Do you mind explaining a bit more? Do you mean like that it boots you into recovery only or?
Click to expand...
Click to collapse
if i flash a new rom (whether original or custom rom) nothing happens after the reboot... download mode works too, flashing twrp works too! however, the system boot does not work via twrp either... not even a bootloop, the cell phone does not react at all! the task combination for
Right now I don't even care if I get the original firmware or a custom rom running... I hope I didn't brick it (((
My old device was a G930F, its unbreakable make sure you flash the right rom and wipe data and dalvik cache after flashing.... THis ons is locked so it doesn't have fastboot. My G-930F came with fastboot enabled so you can always fastboot a recovery.img. like TWRP
Did you try to download TWRP from twrp.me and "fastboot boot twrp-3.7.0_9-0-herolte.img" ? it should boot to twrp in fastboot mode (hold volume down + home + power).
Ben1987 said:
if i flash a new rom (whether original or custom rom) nothing happens after the reboot... download mode works too, flashing twrp works too! however, the system boot does not work via twrp either... not even a bootloop, the cell phone does not react at all! the task combination for
Click to expand...
Click to collapse
1. is your KG status is broken?
2. Is your bootloader unlocked?
You know how to flash lineageos through twrp right? and how to use odin?
Maybe flash lineageos to see if everything works.... and then revert to original software. Be sure to wipe cache/dalvik and userdata
DaanNL said:
There's U U1 0 W F N .... I'm looking for the oldest firmware with binary version 8, but it seems the sites don't show all firmwares available.... i'm looking for the oldest firmware with U8 bootloader (or any compatible bootloader with binary 8 version), i could have a look at all sites and try my luck... but they don't seem to have all data. but like i said i prefer some original source xml files... i saw some url's to original samsung servers but can't find them anymore.
There is already a firmware available with the march update.... but you have to be lucky to find them... i'm looking for original sources. like update.zip's and such
Found the first one....
https://fota-cloud-dn.ospserver.net/firmware/TMB/SM-G975U/version.xml
Click to expand...
Click to collapse
Yes, I know there are many other variant firmwares out there, but for a U phone (snapdragon) there is really only U and U1... the rest are incompatible.
There is no "older" firmware with binary 8, because the firmwares are packaged with the proper/compatible binary already. Basically, the "binary" is the bootloader version. On Snapdragon phones, you must have the proper BL/binary to flash, as you already know. You can't interchange the binary/BL with the ROM and security updates because they are not made that way.
The update.zip you're looking for are updates sent by Samsung directly, and they can update the ROM (and Binary) from one stock version to another... but, again, they will update both the binary/BL as well as the ROM, so they can't be broken up to only do one or the other.
It sounds like you're trying to get to an older ROM version (for whatever reason) with an older security patch level as well? Basically, this cannot be done on Snapdragon phones. Once you're on an updated binary/BL, you're stuck there (at least today you are).
WooBLOATERRRR said:
I solved the problem! I had unlocked the bootloader, but I also had to deactivate verity via CMD with twrp+adb "adb disable-verity"
ok i've solved the problem now, but does anyone know why i couldn't even start the original stock roms? Actually, the stock ROM should set everything to factory settings...
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Click to collapse
WooBLOATERRRR said:
1. is your KG status is broken?
2. Is your bootloader unlocked?
Click to expand...
Click to collapse
Thank you for helping so quickly with ideas... I would not have expected such quick help with such an old model, even samsung customer service didn't want to help me yesterday
Ben1987 said:
Thank you for helping so quickly with ideas... I would not have expected such quick help with such an old model, even samsung customer service didn't want to help me yesterday
Click to expand...
Click to collapse
Samsung/apple support in a nutshell
schwinn8 said:
Yes, I know there are many other variant firmwares out there, but for a U phone (snapdragon) there is really only U and U1... the rest are incompatible.
There is no "older" firmware with binary 8, because the firmwares are packaged with the proper/compatible binary already. Basically, the "binary" is the bootloader version. On Snapdragon phones, you must have the proper BL/binary to flash, as you already know. You can't interchange the binary/BL with the ROM and security updates because they are not made that way.
The update.zip you're looking for are updates sent by Samsung directly, and they can update the ROM (and Binary) from one stock version to another... but, again, they will update both the binary/BL as well as the ROM, so they can't be broken up to only do one or the other.
It sounds like you're trying to get to an older ROM version (for whatever reason) with an older security patch level as well? Basically, this cannot be done on Snapdragon phones. Once you're on an updated binary/BL, you're stuck there (at least today you are).
Click to expand...
Click to collapse
I've tried different firmwares, its all about snapdragon. You can also flash SM-G975W parts and other snapdragon variants.... there's a lot of variants out there.
I first upgraded and then downgraded to the parts i wanted and am on a rom now with security patch level December 2022, as long as the binary version is the same there's no problem. I've got the latest modem installed and the oldest firmare and bootloader for the latest binary version, i can upgrade or downgrade my bootloader. I already asked someone before if this was possible and if he could confirm because before i was only able to flash CSC and AP i think.
If there's no updates comming anymore why not downgrade and wait for a new leak
I'm also sure we can unlock the bootloader, i'm trying to make an lposed module. I've installed lspatch and lposed and they work fine for some modules. The bootloader unlock has several prerequisites (properties and such) if i can make it look for other properties or something like that we might get an unlock option. Also it looks for an encrypted file on EFS, if someone with an unlocked samsung phone could copy that file we would be a lot further.
It's called /efs/sec_efs/sktdm_mem/encmembership.txt and should be an encrypted file, also if anyone knows how to set ro properties without root (like a stub before the preference controller starts) this would be very usefull.

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