Hi everyone, I am new to rooting and custom Rom flashing. My question is that is it possible to flash bootloader with twrp? I have a exynos s7 and it has been rooted. I have accessed twrp too. After January update the bootloader has been changed (updated) and now you cannot downgrade to android 6 with the bootloader (only Rom of Android 6 can be installed but bootloader will be of Android 7). So I was thinking of changing the bootloader!
Trying to downgrade the boot loader could hard brick the phone.
audit13 said:
Trying to downgrade the boot loader could hard brick the phone.
Click to expand...
Click to collapse
Could or would ?
Is there some cases with hard bricked phones reported ?
Search around, not just the s7 forum but all Samsung forums starting with the s3.
Samsung bootloaders for some of the USA carriers are locked. In cases where the bootloader is unlocked, it does not mean the bootloader can be downgraded to an earlier version.
Related
I prefer the speed and performance of marshmallow on the S7. Where are the correct files I should flash in Odin and which version of Odin should I be using to flash Android 6?
So apparently the camera isn't working after downgrade to 6?
Not something I'm willing to deal with unless the issue has been solved.
You can't downgrade snapdragon S7 models (G930U/T/V/A/P) due to the locked bootloader
Any downgrading would only work on the G930F with OEM unlock
Help root or downgrade or both?
Beanvee7 said:
You can't downgrade snapdragon S7 models (G930U/T/V/A/P) due to the locked bootloader
Any downgrading would only work on the G930F with OEM unlock
Click to expand...
Click to collapse
I have a sm-g930u factory unlocked and Im also trying to get all i need to downgrade from oreo which is havoc on my battery and i dont know if its better to downgrade to laterst nougat or root it and take care of bloatware to help battery drain yet the problem will persist which is that the upgrade is designed for s8 and s9 with octacore processor and the s7 is working harder with a quad core so temp will always be hotter than before and slower than with nougat . Any help with proper step by step in downgrading my factory unlocked phone would be appreciated and any root links as i havent done it in years.
Beanvee7 said:
You can't downgrade snapdragon S7 models (G930U/T/V/A/P) due to the locked bootloader
Any downgrading would only work on the G930F with OEM unlock
Click to expand...
Click to collapse
You can downgrade. You just can't root.
dave678 said:
You can downgrade. You just can't root.
Click to expand...
Click to collapse
thats not true
You can downgrade any version bit loader by flashing the combo firmware and the rooting combo firmware then flash stock nougat system image its basically what the root method is for Rev11/B. If you are just on nougat then you would have to get the combo firmware that matches the bootloader version you have because if you flash my rev11/B root method you are forever stuck on that bootloader and can never use nougat again or have oreo root as there is no eng root boot.img available for oreo root on rev11/B bootloader
jrkruse said:
You can downgrade any version bit loader by flashing the combo firmware and the rooting combo firmware then flash stock nougat system image its basically what the root method is for Rev11/B. If you are just on nougat then you would have to get the combo firmware that matches the bootloader version you have because if you flash my rev11/B root method you are forever stuck on that bootloader and can never use nougat again or have oreo root as there is no eng root boot.img available for oreo root on rev11/B bootloader
Click to expand...
Click to collapse
Oh I meant if you're not rooted.
dave678 said:
Oh I meant if you're not rooted.
Click to expand...
Click to collapse
you can downgrade too marshmallow from any version you have because combo firmware for s7 is marshmallow based and its available for all bootloader versions. You just use the combo bootloaders and boot.img and stock system image then root it
If your still on bit 4 you can just flash stock bit 4 marsmallow and root with marshmallow eng root img
Hi all,
I unlocked the bootloader, rooted and dropped the purenexus 7.1.2 ROM on my Pixel back when it was all released. At the time people were saying that its about as good as its going to get and then when 8 came along ppl said a rooted Pixel can't be updated to the new OS while bootloader is unlocked and rooted.
Just wondering if someone can weigh in and tell me where we are currently at with Pixel in regards to rooting, bootloaders and OS updates? Can we have an unlocked bootloader, TWRP installed, rooted and run 8.1 with OTA updates now?
brettule said:
Hi all,
I unlocked the bootloader, rooted and dropped the purenexus 7.1.2 ROM on my Pixel back when it was all released. At the time people were saying that its about as good as its going to get and then when 8 came along ppl said a rooted Pixel can't be updated to the new OS while bootloader is unlocked and rooted.
Just wondering if someone can weigh in and tell me where we are currently at with Pixel in regards to rooting, bootloaders and OS updates? Can we have an unlocked bootloader, TWRP installed, rooted and run 8.1 with OTA updates now?
Click to expand...
Click to collapse
You can unlock your bootloader. TWRP and root your phone. You won't get OTA updates, but you can install them manually. Or unroot your phone.
pojr said:
You can unlock your bootloader. TWRP and root your phone. You won't get OTA updates, but you can install them manually. Or unroot your phone.
Click to expand...
Click to collapse
If I was to unroot but keep the bootloader unlocked would OTA updates work again?
Is the old bootloader unlock still valid or do I need to lock it and unlock it using current methods?
I recently upgraded to oreo and my bootloader is also upgraded to 7 i need suggestions that if my g930p get boot loop than what if i instal nougat?
Snapdragon S7's can't be downgraded, it's a restriction on their bootloader. You're stuck on Oreo.
Beanvee7 said:
Snapdragon S7's can't be downgraded, it's a restriction on their bootloader. You're stuck on Oreo.
Click to expand...
Click to collapse
There is only solution for my all problems is to root this device (g930p oreo) i tried many methods but non of them worked for me if some one help to root it will be appropriated thanks
Hello, i was trying to downgrade my phone from OneUI (Android 9) to samsung experience (Android 7) on G611F because latest version makes the device too slow for me and also i like samsung experience more than OneUI but seems that even when bootloader is unlocked it can't be downgraded from S3 to U1 and i face sw rev. check fail (bootloader) device 3, binary 1 error.. unfortunately trying to flash without BL gives same error with kernel (boot image).. is there any workaround to get this working? The bootloader already unlocked and i don't bother tripping knox or use custom recovery to flash stock old rom but i don't know if that would work or will give me same error during boot with kernel and other partitions.. also i'm worried about using a custom recovery to flash BL and downgrade bootloader by writting the old one directly to the proper partition with dd in terminal as i don't know if doing this will hard brick the device or not..
Is there any way i can use to downgrade to stock samsung experience rom?..
Thanks!
Same question sir...?
So I first bought my Samsung a11 as an android 10 model,
I then flashed it after I bought it with an open-line android 11 version and got twrp and root. This was a year ago I think.
Now they released the final update for this Samsung phone model, and I want to at least get the latest and last version of my phone.
But I kinda forgot how to do the procedures again.
So my question is does flashing the new android version firmware using odin remove TWRP installed on my device?
my phone model is: A115FXXU2BUJ2 (android 11)
the firmware I want to install: A115FXXU3CV13 (android 12)
if so what do I need to do in order to successfully have both the new firmware I want to install and twrp installed on my device? (i kinda know how to root using twrp and magisk so no problems here)
Any help would be much appreciated!
????.?? said:
So I first bought my Samsung a11 as an android 10 model,
I then flashed it after I bought it with an open-line android 11 version and got twrp and root. This was a year ago I think.
Now they released the final update for this Samsung phone model, and I want to at least get the latest and last version of my phone.
But I kinda forgot how to do the procedures again.
So my question is does flashing the new android version firmware using odin remove TWRP installed on my device?
my phone model is: A115FXXU2BUJ2 (android 11)
the firmware I want to install: A115FXXU3CV13 (android 12)
if so what do I need to do in order to successfully have both the new firmware I want to install and twrp installed on my device? (i kinda know how to root using twrp and magisk so no problems here)
Any help would be much appreciated!
Click to expand...
Click to collapse
Yes, flashing the update via Odin will remove TWRP and root, it will also, more than likely, lock your bootloader, then you won't be able to reinstall TWRP or root the device unless you unlock the bootloader, if it can be unlocked.
Droidriven said:
Yes, flashing the update via Odin will remove TWRP and root, it will also, more than likely, lock your bootloader, then you won't be able to reinstall TWRP or root the device unless you unlock the bootloader, if it can be unlocked.
Click to expand...
Click to collapse
My phone's bootloader is already unlocked, after flashing the updated android version firmware will the bootloader become lock again? and how do i avoid rmm and frp lock?(just incase this happens)
????.?? said:
My phone's bootloader is already unlocked, after flashing the updated android version firmware will the bootloader become lock again? and how do i avoid rmm and frp lock?(just incase this happens)
Click to expand...
Click to collapse
If the bootloader in the update is a securely locked bootloader, it will probably have locked bootloader after flashing and might not be able to be unlocked. That was the whole point of me warning you in my last post. Now I've had to post again just to say the same thing that I already said. I guess I was talking to the wind.
There is no way to know what the results will be after updating unless you find someone that has already updated the exact same model number of A11 or bite the bullet and update yours then see what you get.
Droidriven said:
If the bootloader in the update is a securely locked bootloader, it will probably have locked bootloader after flashing and might not be able to be unlocked. That was the whole point of me warning you in my last post. Now I've had to post again just to say the same thing that I already said. I guess I was talking to the wind.
There is no way to know what the results will be after updating unless you find someone that has already updated the exact same model number of A11 or bite the bullet and update yours then see what you get.
Click to expand...
Click to collapse
I see, looks like i need to find someone who have done it and see if it works. I didnt get what you mean about after flashing, it might have a chance to lock the bootloader depends on the update. I think ill just try and see what happens. Thank you.
I dont know guys with that phone but there should be a tool that bypass auth and unlock the bootloader in any case. I ONLY knows MTK devices, not sure about that samsung i use a .Bat file.
????.?? said:
I see, looks like i need to find someone who have done it and see if it works. I didnt get what you mean about after flashing, it might have a chance to lock the bootloader depends on the update. I think ill just try and see what happens. Thank you.
Click to expand...
Click to collapse
No, I said that after the update, it could cause the bootloader to be locked and then may not be unlockable from that point on. It depends on the bootloader in the update. If this happens, you will be unable to install TWRP or root via Magisk. That is why you need to confirm whether or not flashing the update will relock the bootloader during the flashing process and, if it does, whether or not it can be unlocked again after the update.
In other words, look at exactly what you are about to jump into before you make the jump because you might land in the one place that you absolutely do not want to land.