[Q] bootloader - General Questions and Answers

can any one helo me with this?
i have a samsung galaxy s2 from bell it was flashed with xxki3 package that included a bootloader pda phone and csc files. i want to return my phone to the stock bell files ugkg2 but the firmware i downloaded does not have a bootloader just the pda phone and csc files.
am i right to assume that the bootloader that came with the xxki3 firmware even after i flash the ugkg2 firmware remains on my phone thats why whin i flash to it the phone wont boot?
i am a noob but my understand is there is check points in the bootloader and the firmware of xxki3 that must match up and if they dont meaning u change the firmware and not the bootloader and the phone wont load? is this correct?
also is the bootloader from xxki3 secure? meaning it cant be changed?
how do i find the ugkg2 bootloader to flash with the ugkg2 firmware?
or how do i unsecured the xxki3 bootloader so i can flash back to the ugkg2
sorry for the noob questions but i have been searching for about a week now to be able to get off this xxki3 firmware so i can load a coustom rom
PLEASE HELP!!

bootloader
hers a question my phone is unlocked and rooted on xxki2 as i said i wanna go back to stock bell ugkg2 if i load samsung keis and update to the latiest bell software on there will it work or will i brick my phone or will it only find frinware for xxki3?

Related

Flashing Firmware / Bootloader / Modem

Hi,
I´m a neewbie to Samsung. My phone is a S6 SM-G920F, Baseband G920FXXU1AOCW
I came form an HTC and I´ve seen that flashing things are very different. So here are my questions:
1. I think, my bootloader is unlocked but I didin´t know for sure. So how can I check this?
(My HTV showed me this by using fastboot, didn´t know if there is fastboot with Samsung and how to start it - only know the download-mode and how to enter TWRP recovery)
2. Flashing firmware via Odin (i. e. from sammobile.com) means to loose my root again, right?
3. If I loose root, where do I get custom Firmwares and how do I flash them (if this is possible)?
4. If not, is it enough to flash bootloader and modem through Odin?
All answers are appreciated. Thanks in advanced.
Maybe someone can link me to an step to step instruction...
Fastboot is android doesn't matter who makes the phone.
If you flash a rom from sammobile then you will go to whichever stock you pick.
Other ROMs are available here. The phone is new. There aren't many yet. Cyanogen mod isn't available yet.
Root is available by flashing cfautoroot with Odin. You will need to get the specific one.
You can replace the recovery by flashing twrp team win recovery project with Odin.
You can flash boot loader and modem. Make sure you get the right region. The modem frequencies are different in different places.
You may find flashing a whole ROM even stock will fail. This is because the partitions are not the same size for all s6 stock ROMs. Don't ask me why. You can open the tar find which file stopped the flash delete it from the tar and flash again.
quatzar said:
Fastboot is android doesn't matter who makes the phone.
If you flash a rom from sammobile then you will go to whichever stock you pick.
Other ROMs are available here. The phone is new. There aren't many yet. Cyanogen mod isn't available yet.
Root is available by flashing cfautoroot with Odin. You will need to get the specific one.
You can replace the recovery by flashing twrp team win recovery project with Odin.
You can flash boot loader and modem. Make sure you get the right region. The modem frequencies are different in different places.
You may find flashing a whole ROM even stock will fail. This is because the partitions are not the same size for all s6 stock ROMs. Don't ask me why. You can open the tar find which file stopped the flash delete it from the tar and flash again.
Click to expand...
Click to collapse
Thanks for answering. My questions had an other intention, I think.
My S6 is already rooted and I have a custom recovery (TWRP) :good:
I would like to know if you have to flash a whole firmware or only bootloader/modem? Because I didn´t seen a post here for a full firmware yet.
I am not familiar with the differences between htc whole firmware and samsung bootloader/modem
Actually I am on Firmware G920FXXU1AOCW. But there are newer ones like XXU1AOE3 or XXU1AOE4.
In the days of my htc you couldn´t flash only bootloader or modem, you had to flash a whole firmware (like radio, drivers, bootloader, modem etc.)
Flashing only modem and bootloader will it update i. e. touchscreen drivers? If not, where do I get this ones? You know, because of root I don´t get OTA´s anymore...
The modem just controls how your phone hardware connects to carrier towers etc.
The boot loader is a tiny thing that tells the processor where and how to load the OS.
The software for pretty much everything is in /system.
Many of these releases are the same software, region specific. The dates are fairly unimportant for the same version number. They generally reference the time when they were uploaded by someone. Not that they have updates and fixes.
Just wanted to know can I change my phone logo MetroPCS to say T-mobile with all the T-mobile add on. I have a Samsung Galaxy s6 by MetroPCS

Odin flash failed, device 3, binary 2. Help needed!

Hi,
I have a G920F, I was rooted and want to go to stock again. I have restored the device with Smart Switch, but now I am unable to flash any other rom. I have downloaded 3 different roms from Sammobile and get sw. check failed device 3 binary 2 at everyone. The current rom is form Italy Wind the latest OI9. Any suggestions?
Thanks in advance.
Hi, probably you trying to install oldest firmware 5.0.1, download the latest firmware and try again. You are with 5.1, right? This error on odin happens, because you cannot downgrade the firmware. Hope this helps.
I think you can not downgrade even if it is the same Android version.
If it detects you are on a newer bootloader it will give you that error.
What I belive you can do is to extract the bootloader (sboot) and modem from the .tar file and flash ONLY the system through Odin.
Don't know exactly how to do that because I haven't done it but I think that would do; you will have to search and read my friend.
You will have the stock firmware but with latest bootloader and modem.
Hope this helps.
Note: As far as I know this will work if its the same Andorid version; you can not have Android 5.0.2 with 5.1.1 bootloader.
jpdediego said:
I think you can not downgrade even if it is the same Android version.
If it detects you are on a newer bootloader it will give you that error.
What I belive you can do is to extract the bootloader (sboot) and modem from the .tar file and flash ONLY the system through Odin.
Don't know exactly how to do that because I haven't done it but I think that would do; you will have to search and read my friend.
You will have the stock firmware but with latest bootloader and modem.
Hope this helps.
Note: As far as I know this will work if its the same Andorid version; you can not have Android 5.0.2 with 5.1.1 bootloader.
Click to expand...
Click to collapse
Hi,
I have tried what you said, but no succes. The firmware was already recovered with smart switch so the bootloader is the latest.
raj_p said:
Hi,
I have tried what you said, but no succes. The firmware was already recovered with smart switch so the bootloader is the latest.
Click to expand...
Click to collapse
But did you try to flash without the bootloader and modem?

[Q] Want to flash G930U rom on G930V, do i need to unlock bootloader?

Hi,
Im interested in flashing stock G930U rom on G930V phone. Do i need to modify bootloader / anything else before flashing with Odin?
Thanks!
apex88 said:
Hi,
Im interested in flashing stock G930U rom on G930V phone. Do i need to modify bootloader / anything else before flashing with Odin?
Thanks!
Click to expand...
Click to collapse
I noticed its the wrong forum. apologies.
no. i was on U firmware from my previous ATT firmware version without unlocking the bootloader (and i think that is impossible for US version) and without modifying anything.
I was able to successfully flash G930U firmware on G930V phone using Odin. didnt need to open anything or to do modifications prior to flashing.
Yep, stock firmware doesn't require an unlocked bootloader unless you're downgrading. The snapdragon models also can't be bootloader unlocked anyway.

N971N - Korean Firmware to Uk Firmware

I was hoping someone could help me out. I have a Korean firmware Galaxy Note 10, i have scoured through the internet trying to find a solution or a flashable firmware to change it back to the UK firmware, to my recollection they both have the same processor.
I have gone as far as rooting so that it could open some doors in terms of reverting back to the UK firmware. i was wondering if anyone could help.
Everytime i tried flashing the UK firmware using Odin it would say the bootloader is locked, however i did unlock the bootloader before attempting to flash the firmware.
Maybe the UK firmware you trynna install is older than the one you already have? Maybe it's preventing flash for such Security reasons?
Tried flashing bootloader only?
Firmware without bootloader?
Mohamedkam000 said:
Maybe the UK firmware you trynna install is older than the one you already have? Maybe it's preventing flash for such Security reasons?
Tried flashing bootloader only?
Firmware without bootloader?
Click to expand...
Click to collapse
would you know where i would be able to obtain the firmware?
You can't install Uk firmware onto n976n, this model has only 4 CSC available and all of them Korean.

Question Help returning to stock ATT firmware for S22 Ultra

I have an ATT branded S22 Ultra (SM-S908U) where I flashed unlocked firmware using Odin (was trying to sign up for 5.0 beta...but even flashing unlocked firmware does not show me sign up option in Samsung Users).
I am now trying to return to stock ATT firmware, however, Odin fails at file analysis for both AVA6 and AVC8 firmware.
Is there anything I'm doing wrong?
Factory wipe. Make sure you are using patch Odin. If it fails and boots to emergency warning screen do not try to get back to stock recovery. Just flash firmware again without factory wipe. I usually have to flash in Odin twice.
explosive0 said:
I have an ATT branded S22 Ultra (SM-S908U) where I flashed unlocked firmware using Odin (was trying to sign up for 5.0 beta...but even flashing unlocked firmware does not show me sign up option in Samsung Users).
I am now trying to return to stock ATT firmware, however, Odin fails at file analysis for both AVA6 and AVC8 firmware.
Is there anything I'm doing wrong?
Click to expand...
Click to collapse
Use Odin 3.13 patched
explosive0 said:
I have an ATT branded S22 Ultra (SM-S908U) where I flashed unlocked firmware using Odin (was trying to sign up for 5.0 beta...but even flashing unlocked firmware does not show me sign up option in Samsung Users).
I am now trying to return to stock ATT firmware, however, Odin fails at file analysis for both AVA6 and AVC8 firmware.
Is there anything I'm doing wrong?
Click to expand...
Click to collapse
If you were on Beta (thats Rev 2) and you're trying to flash back to firmwares on (Rev 1) .....that's why your failing. You can't go back but to AVDC. And no matter what patched Odin you try.....nothing will get you to those firmwares.
*EDIT* I misread your post. But either way those firmware are not able to be flashed. You can only flash firmware within your REV.

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