Hello,
This might be a repeat question, but somehow I am not able to get a stable solution.
So I am on G930A ATT and just received Nougat update. However, I would want to go back to Marshmallow 6.0.1
My device is NOT rooted and is locked to ATT.
Any suggestions how can I get back MM 6.0.1 ? Can someone please guide me with detailed steps and tools which can be used.
Thanks.
Baseband Version:
G930AUCU4APJ4
Security Patch:
October 1, 2016
Build NUmber:
MMB29M.G930AUCU4APJ4
Don't think you can as your S7's bootloader is locked meaning downgrading won't work, only upgrading
*Detection* said:
Don't think you can as your S7's bootloader is locked meaning downgrading won't work, only upgrading
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Click to collapse
Thank you for response.. But could you please elaborate a bit.. so I can't downgrade due to the fact that my device is locked to ATT..
If it would have been unlocked, then I could ? Trust me, Nougat update is really annoying and I really want to get rid of it..
malhotra.aakash said:
Thank you for response.. But could you please elaborate a bit.. so I can't downgrade due to the fact that my device is locked to ATT..
If it would have been unlocked, then I could ? Trust me, Nougat update is really annoying and I really want to get rid of it..
Click to expand...
Click to collapse
It's the bootloader of the US model S7s (Snapdragon) that prevent it, along with preventing flashing custom recovery afaik
Usually you would just use ODIN and grab the ROM you want to flash from updato.com or sammobile but I'm almost certain downgrading is blocked if the bootloader is locked
Not specifically anything to do with your AT&T carrier, it's the phones themselves that are locked
Some info here about snapdragon S7s and their locked bootloader
https://forum.xda-developers.com/galaxy-s7/how-to/discussion-unlock-bootloader-rd-t3582800
Related
hello i got a s7 from straight talk . and it model is SM-G930VL
what does that follow under .. i was thinking verizon but verizon doesnt have the L in it . Also would i be able to root using that method that in the forum . also Which roms would i be able to use when i root it?
thank you
Adaken13 said:
hello i got a s7 from straight talk . and it model is SM-G930VL
what does that follow under .. i was thinking verizon but verizon doesnt have the L in it . Also would i be able to root using that method that in the forum . also Which roms would i be able to use when i root it?
thank you
Click to expand...
Click to collapse
It should be under the Verizon model. Usually tracfone does not lock the bootloaders on their variant. On another thread a guy flashed the verizon firmware to this model with no bricks and issue. but doing that WILL lock the bootloader. I hope he responds to my post. want to know to what extent it was flashed and if knox got tripped.
aromerblz said:
It should be under the Verizon model. Usually tracfone does not lock the bootloaders on their variant. On another thread a guy flashed the verizon firmware to this model with no bricks and issue. but doing that WILL lock the bootloader. I hope he responds to my post. want to know to what extent it was flashed and if knox got tripped.
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Click to collapse
would you be able to show me the right direction to where he got the method to root his.? also if you learn anything else from him . can you let me know. so this mean I have an unlock bootloader? doesn't that mean I can root easier?
Adaken13 said:
would you be able to show me the right direction to where he got the method to root his.? also if you learn anything else from him . can you let me know. so this mean I have an unlock bootloader? doesn't that mean I can root easier?
Click to expand...
Click to collapse
I should be able to get one of these mids august hopefully and will use it as a test device to see what bricks it and what hack can be done. In the past tracfone has release the SM-S975L(Tracfone Unlocked bootloader) which equals to an SGH-I337 (AT&T Locked bootloader), they released the S5 & S6 which equal to the SM-G900V and SM-G920V, both have Unlocked bootloaders. So i dnt think the S7 is any different and equals to the SM-G930V. Any root method that works for the SM-G930V should work on the SM-G930VL. But again this is just my say based on past experiences, i wont know until i get the phone and try all this. For what I know so far he was able to flash the complete verizon firmware which i think will flash a locked bootloader and no going back after it.
Yes will share my experiences.
Adaken13 said:
would you be able to show me the right direction to where he got the method to root his.? also if you learn anything else from him . can you let me know. so this mean I have an unlock bootloader? doesn't that mean I can root easier?
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Click to collapse
So i was able to flash the full latest verizon firmware and fully ended up converting the phone to an SM-G930V. SO provided that you flash the firmware on which root was achieved for the SM-G930V, then there is really no stopping you from rooting this phone. As expected due to flashing the verizon firmware the phone has a locked bootloader now but root was achieved regardless.
Proceed at your own risk.
I have the Sm-g930vl (tracfone) and would like to confirm the bootloader is unlocked. I can boot into both recovery and download mode but cannot connect with fastboot to get device info. Is there another way to check?
KericF said:
I have the Sm-g930vl (tracfone) and would like to confirm the bootloader is unlocked. I can boot into both recovery and download mode but cannot connect with fastboot to get device info. Is there another way to check?
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Click to collapse
Bootloader is locked and cannot be unlocked. Samsung devices do no use fastboot.
edit build.prop
aromerblz said:
Bootloader is locked and cannot be unlocked. Samsung devices do no use fastboot.
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Click to collapse
Thanks for the info. Do you know if I can edit the build.prop with adb without rooting? I've never messed with Samsung. Seems a different beast.
KericF said:
Thanks for the info. Do you know if I can edit the build.prop with adb without rooting? I've never messed with Samsung. Seems a different beast.
Click to expand...
Click to collapse
No way you can modify build.prop without root. What are you trying to accomplish?
aromerblz said:
No way you can modify build.prop without root. What are you trying to accomplish?
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Click to collapse
I was hoping to enable hotspot. I've read where people have flashed the 930u firmware and can enable it but I'm already on Nougat even on tracfone firmware.
KericF said:
I was hoping to enable hotspot. I've read where people have flashed the 930u firmware and can enable it but I'm already on Nougat even on tracfone firmware.
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Click to collapse
I see, the only way I see this working for you is by third apps or flash a firmware that supports it.
It says it provides the latest Android Security Patch on the Verizon Galaxy S5 Update page.
Now that the Odin FW is out, I flashed an Odin tar of the FW without the aboot and still have a Dev Edition phone. Now we just need an updated aboot.
Original Post:
It says it provides the latest Android Security Patch but if you notice, there is a difference in the "middle" of the build number, which happens when they update the bootloader.
Verizon Galaxy S5 Update page
The first time they updated the bootloader, it prevented downgrading. The number went from G900VVRU1 to G900VVRU2. This time, it's going from G900VVRU2 to G900VVRS2. What does this mean? I have no clue. But I do know that nobody should update until someone like @muniz_ri or @jrkruse has a look at the bootloader to see what exactly this changes. Hopefully it doesn't remove the ability to have Dev Bootloaders anymore.
Dudash said:
It says it provides the latest Android Security Patch but if you notice, there is a difference in the "middle" of the build number, which happens when they update the bootloader.
Verizon Galaxy S5 Update page
The first time they updated the bootloader, it prevented downgrading. The number went from G900VVRU1 to G900VVRU2. This time, it's going from G900VVRU2 to G900VVRS2. What does this mean? I have no clue. But I do know that nobody should update until someone like @muniz_ri or @jrkruse has a look at the bootloader to see what exactly this changes. Hopefully it doesn't remove the ability to have Dev Bootloaders anymore.
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Click to collapse
The 2 in the version represents the bootloader version usually as long as that doesn't change you should still be able to downgrade
jrkruse said:
The 2 in the version represents the bootloader version usually as long as that doesn't change you should still be able to downgrade
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Click to collapse
But what does it mean when they change it from VRU2 to VRS2?
The VZW S5 bootloader has always been VRU1 or VRU2. Now all of the sudden they change it to VRS2? They had to have changed something.
Dudash said:
It says it provides the latest Android Security Patch but if you notice, there is a difference in the "middle" of the build number, which happens when they update the bootloader.
Verizon Galaxy S5 Update page
The first time they updated the bootloader, it prevented downgrading. The number went from G900VVRU1 to G900VVRU2. This time, it's going from G900VVRU2 to G900VVRS2. What does this mean? I have no clue. But I do know that nobody should update until someone like @muniz_ri or @jrkruse has a look at the bootloader to see what exactly this changes. Hopefully it doesn't remove the ability to have Dev Bootloaders anymore.
Click to expand...
Click to collapse
No matter what they change, I think it will be unlocked forever.
I have seen the update yesterday but still not tested as s5 is my daily driver.
mohammad.afaneh said:
No matter what they change, I think it will be unlocked forever.
I have seen the update yesterday but still not tested as s5 is my daily driver.
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Click to collapse
No if they make it so we can't downgrade then their will be no way to obtain root. Since my bootloader update isn't always successful you could get stuck without being able to root on a worse case scenario. Now you can always start over and reroot
jrkruse said:
No if they make it so we can't downgrade then their will be no way to obtain root. Since my bootloader update isn't always successful you could get stuck without being able to root on a worse case scenario. Now you can always start over and reroot
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Click to collapse
You are right, if no root there no unlock.
But If you noticed that all the unlocked devices, Note 3, Note 4 and S5 are downgradeable. S3 and S4 are not!
I think its all about eMMC not the bootloader.
mohammad.afaneh said:
You are right, if no root there no unlock.
But If you noticed that all the unlocked devices, Note 3, Note 4 and S5 are downgradeable. S3 and S4 are not!
I think its all about eMMC not the bootloader.
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Click to collapse
If i read your post correctly, I believe that you may be incorrect on the last sentence. To unlock the bootloader, the devices mentioned need to have the Samsung eMMC 15 chip to aquire unlocking the bootloader.
Also, pretty much the same as the S5, N4 & N3, the S3 & S4 are downgradeable IF you didn't take the update that locked the bootloaders. As i know because I still own my VZW S3 which is unlocked and running TWRP recovery
al50 said:
If i read your post correctly, I believe that you may be incorrect on the last sentence. To unlock the bootloader, the devices mentioned need to have the Samsung eMMC 15 chip to aquire unlocking the bootloader.
Also, pretty much the same as the S5, N4 & N3, the S3 & S4 are downgradeable IF you didn't take the update that locked the bootloaders. As i know because I still own my VZW S3 which is unlocked and running TWRP recovery
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Click to collapse
I own S3 locked on 4.4.2 and 15 CID and no downgrade caused by eMMC and the aboot together, I think there a fuse triggerd so we cant unlock and downgrade.
My S4 is 11 CID and no downgrade too.
The PL1 update is not up yet so we cant be sure it will lock the bootloader or not, but the S6 already has same bootloader versioning letters on the new update!
I also noticed that my Tab 4 (no carrier, wifi only) just got an update for the first time in like a year and it's bootloader version changed from UEU1 to UES1. Maybe it doesn't mean anything after all.
Well now that the odin firmware came out this morning, I created a .tar without the aboot, flashed it, and I still have a Dev edition with the PJ2 aboot. Hopefully @jrkruse will create a bootloader update zip for the PL1 aboot.
The VZW S4 just got it too.
https://forum.xda-developers.com/galaxy-s4-verizon/general/update-1545vrsgpl1-t3537781
I'm not the sharpest tool. If the S4 Bootloader was locked via EFuse, how did they update it?
Anyone got and update zip for pl1 ?
Sent from my SM-G900V using Tapatalk
I was able to obtain root access on my device running LRX22C.I545VRSGPL1, bootloader was indeed updated, could it hinder progress on finding an unlock?
I have a Verizon tablet. I would like to flash a version of the firmware did not come from Verizon, the same firmware that I'd have gotten if I didn't buy it from them and is not tied to any carrier at all. Is this possible without doing anything weird that you'd have to do with a custom ROM like unlock the bootloader? Or can this be accomplished with no complications whatsoever by flashing through Odin?
counciler said:
I have a Verizon tablet. I would like to flash a version of the firmware did not come from Verizon, the same firmware that I'd have gotten if I didn't buy it from them and is not tied to any carrier at all. Is this possible without doing anything weird that you'd have to do with a custom ROM like unlock the bootloader? Or can this be accomplished with no complications whatsoever by flashing through Odin?
Click to expand...
Click to collapse
Firmwares are model number specific plus, Verizon has locked bootloader on every one of their Samsung devices younger than 2 years old and some of the older ones that have been updated to Lollipop or newer have locked bootloader, some are locked as far back as KitKat. If the device you have has a locked bootloader then it's not gonna allow you to flash anything that isn't Verizon firmware.
Sent from my SM-S903VL using Tapatalk
Got it, thank you.
Hi guys
I updated my s7 by OTA to last update version G930VVRU8CRJ3
i have tried all possible method to root my phone and it's all faild
does anyone have a way to root or downgrade it??
If it's a G930V you can't downgrade, Snapdragon bootloader prevents downgrading.
There are some root methods in the Verizon / T-mobile S7 subforums.
Note that the USA models have a locked bootloader that can't be unlocked, so root involves using a leaked engineering bootloader to bypass the restriction, which can have mixed results.
https://forum.xda-developers.com/verizon-galaxy-s7/development/rom-t3757884
https://forum.xda-developers.com/verizon-galaxy-s7/development/easyroot-unroot-t3859755
Beanvee7 said:
If it's a G930V you can't downgrade, Snapdragon bootloader prevents downgrading.
There are some root methods in the Verizon / T-mobile S7 subforums.
Note that the USA models have a locked bootloader that can't be unlocked, so root involves using a leaked engineering bootloader to bypass the restriction, which can have mixed results.
https://forum.xda-developers.com/verizon-galaxy-s7/development/rom-t3757884
https://forum.xda-developers.com/verizon-galaxy-s7/development/easyroot-unroot-t3859755
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Click to collapse
I think this is the problem I notice it from one of T-Moble s7 theards is any solution for this case
((I did NOT base it on G930TUVS8CRJ1 (the latest) because that has bootloader ver8, which we don't have root for yet. (DONT take that OTA since you can NOT downgrade!) And if I had to guess, the only difference are some minor security updates, but mostly the security update that prevents root!!! ))
hello guys , i need some help .
my device is s10e,G970U1 with unlocked bootloader. today i flashed the bl,ap,cp,and csc from oneui3.1 by odin ,and i get a locked bootloader ,so i want to downgrade to the unlocked bootloader,is here anyway to do that .
maybe i do not need the twrp but magisk is a necessity ,but i cannot flash the patched ap in odin ,what can i do now .
i just unblocked the bootloader at feb 14 ,and now i can not use it ,i am not felling well lol.
I haven't figured it out - trying to flash TWRP or flash the Magisk AP soft bricks. The UI 3.1 bootloader version is 5, and the old one is 4 and it won't let you downgrade since it is, technically, locked now. Though KNOX is still obviously tripped, so samsung pay still doesn't work on my watch.
I don't think it can be unlocked again.
G9700 Snapdragon with OneUI 3.1 and bootloader 5 is working with Magisk v22 and OEM unlock too...
Thanoxs said:
hello guys , i need some help .
my device is s10e,G970U1 with unlocked bootloader. today i flashed the bl,ap,cp,and csc from oneui3.1 by odin ,and i get a locked bootloader ,so i want to downgrade to the unlocked bootloader,is here anyway to do that .
maybe i do not need the twrp but magisk is a necessity ,but i cannot flash the patched ap in odin ,what can i do now .
i just unblocked the bootloader at feb 14 ,and now i can not use it ,i am not felling well lol.
Click to expand...
Click to collapse
If bootloader is same that you want to downgrade to then yes. If your bootloader upgraded from let's say U1 to U2 or S1 to S2 then no you cannot downgrade back to U1 or S1. And on 3.1 on some devices you do lose the bootloader unlock I believe.
kodiak799 said:
I haven't figured it out - trying to flash TWRP or flash the Magisk AP soft bricks. The UI 3.1 bootloader version is 5, and the old one is 4 and it won't let you downgrade since it is, technically, locked now. Though KNOX is still obviously tripped, so samsung pay still doesn't work on my watch.
I don't think it can be unlocked again.
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Click to collapse
yes ,i just find the same thing ,the samsaung pass and knox is still usable ,this is my first time using samsung devices ,maybe i will notice the bootloader version next time when i flash firmware ,and thanks for your reply .
butchieboy said:
If bootloader is same that you want to downgrade to then yes. If your bootloader upgraded from let's say U1 to U2 or S1 to S2 then no you cannot downgrade back to U1 or S1. And on 3.1 on some devices you do lose the bootloader unlock I believe.
Click to expand...
Click to collapse
yes it is ,the bootloader just changed to 5 from 4 ,thanks for your help .
s3korn said:
G9700 Snapdragon with OneUI 3.1 and bootloader 5 is working with Magisk v22 and OEM unlock too...
Click to expand...
Click to collapse
man,yuor device can unlock oem lock but the us version can not do that ,btw ,maybe nextime we talk in chinese haha
Thanoxs said:
yes ,i just find the same thing ,the samsaung pass and knox is still usable
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Click to collapse
Samsung pay didn't work because Knox was tripped, and it still doesn't work on my phone even after being re-locked.
Given the update apparently bypasses the token used to unlock the bootloader, I think we are SOL. People waited years for such an option, and apparently Samsung is working to lock that down.
Now I need to consider if I want to drop $350 for a new S10e still on original firmware, and then another $75 to unlock. I suppose if I can get $150 for my current phone that's not an awful deal.
kodiak799 said:
Samsung pay didn't work because Knox was tripped, and it still doesn't work on my phone even after being re-locked.
Given the update apparently bypasses the token used to unlock the bootloader, I think we are SOL. People waited years for such an option, and apparently Samsung is working to lock that down.
Now I need to consider if I want to drop $350 for a new S10e still on original firmware, and then another $75 to unlock. I suppose if I can get $150 for my current phone that's not an awful deal.
Click to expand...
Click to collapse
you are right, but now it is really hard to find a S10e with 8g ram
Thanoxs said:
you are right, but now it is really hard to find a S10e with 8g ram
Click to expand...
Click to collapse
They are out there. Some new and refurbs for $250-$350.
In any event, I had mixed feelings about rooting in the first place. I pretty much only used it to limit constantly charging my phone to 100% every night. Not going to throw any more money at a phone already over 1.5 years old. A few years from now, I'll probably regret losing root.
hello, I have Galaxy S10E (Snapdragon) SM-G970W with bootloader v6, can anyone help me to unlock this so I could able to flash custom from, TIA.