Trying to grasp the basics - AT&T Samsung Galaxy S7 Questions & Answers

I've been reading the forums for days since I got my S7 (flat, AT&T, 930A) but I can't figure out the story with alternative ROMs, flashing firmwares, ODIN, etc. I'm coming from a G3 where I rooted, installed TWRP, then flashed ROMs, but this is not the process for the S7. So how does it work? What is Odin? What are the firmwares for?
Am I correct in that you use Odin on your computer to flash a firmware to the phone? And these firmwares -- they are stock ROMs without carrier bloat? And then rooting is a separate process?
Thanks... :highfive:

The bootloader is locked currently. You cannot flash any roms right now

XxCyberHackerxX said:
The bootloader is locked currently. You cannot flash any roms right now
Click to expand...
Click to collapse
What about my other questions -- What is Odin? Why flash a firmware?

mrmattolsen said:
What about my other questions -- What is Odin? Why flash a firmware?
Click to expand...
Click to collapse
Odin is a tool used to flash Roms but it can only flash Samsung official roms. The bootloader is locked still so you cannot flash unofficial roms

XxCyberHackerxX said:
Odin is a tool used to flash Roms but it can only flash Samsung official roms. The bootloader is locked still so you cannot flash unofficial roms
Click to expand...
Click to collapse
Thanks. So could someone flash the firmware from the international variant on their AT&T or Verizon variant?

mrmattolsen said:
Thanks. So could someone flash the firmware from the international variant on their AT&T or Verizon variant?
Click to expand...
Click to collapse
No because the two variants uses two different chipsets.

Thanks!

No problem. Just reply if you need anything else

XxCyberHackerxX said:
No problem. Just reply if you need anything else
Click to expand...
Click to collapse
So is it possible for someone to take the stock AT&T (or any other variant) firmware and modify it, such as remove bloatware or something else more extreme -- essentially creating a somewhat customized ROM? Or is it in a format that can't be modified... maybe the Odin software checks for the integrity before flashing?

http://forum.xda-developers.com/showthread.php?t=3417012
Sent from my SAMSUNG-SM-G935A using Tapatalk

Related

Cant Flash ROMs ??

I seem to be unable to successfully flash ROMs on my phone...
I am not sure what's going on.
Yes, I am rooted. Yes, I am flashing ROMs made for my phone, and flashing the appropriate firmware to match the ROM. Yes, I perform a clean flash by wiping everything first.
I have tried wiping cache/dalvik after flashing, still no luck. I have tried not flashing gapps, still nothing...
No matter what I do, it never boots. I sit at the Verizon screen for hours on end.
Any ideas?
G900V Verizon Samsung Galaxy S5
If it's any help, here is a list of ROMs I have tried...
Alliance
Jasmine
Eclipse
Optimal
MiUi
FreedomROM
sgirard1991 said:
If it's any help, here is a list of ROMs I have tried...
Alliance
Jasmine
Eclipse
Optimal
MiUi
FreedomROM
Click to expand...
Click to collapse
What build are you on? Do you have safestrap, flashfire?
Nk2. & I use safestrap
Sent from my SM-G900V using Tapatalk
sgirard1991 said:
Nk2. & I use safestrap
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
Never heard of this. You might have flashed the wrong thing. We don't flash gapps with our Roms. Start over by using Odin to flash a full stock tar of NGC and root again.
I'll give it a try later. Thanks.
sgirard1991 said:
Nk2. & I use safestrap
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
If you're on NK2 then most of the Roms I read you flashed won't work on that build. After you flash a ROM built for OC4, like FreedomROM for example, you need to Odin over the OC4 firmware (which includes modem and kernel) to the device otherwise Roms won't start. Same thing goes for everyone other ROM with the firmware except it has to be for the respective build.
mrjiggywiggy said:
If you're on NK2 then most of the Roms I read you flashed won't work on that build. After you flash a ROM built for OC4, like FreedomROM for example, you need to Odin over the OC4 firmware (which includes modem and kernel) to the device otherwise Roms won't start. Same thing goes for everyone other ROM with the firmware except it has to be for the respective build.
Click to expand...
Click to collapse
Yeah, I've got that all figured out now. Never really had to do that with any other phones I've had, it was always just flash and go, never really messing with different firmware and whatnot. I have since tested 4 different ROMs and they have all flashed with success..
Thanks
Can a mod please mark this thread as answered/closed ? I got it all figured out. Thanks.

How to install cwm or twrp Galaxy S4 ATT

I can't figure out how to do this at all. I know it's online somewhere, but for the life if me I can't figure out where. Someone please help!
Sent from my SAMSUNG-SGH-I337 using Tapatalk
I have I337UCUFNJ5
Sent from my SAMSUNG-SGH-I337 using Tapatalk
You have to sell your phone and buy an i9505. Then you can install TWRP or CWM on your Galaxy S 4.
I believe the ATT version of the s4 has a locked bootloader so flashing TWRP or CWM is not possible atm.
audit13 said:
I believe the ATT version of the s4 has a locked bootloader so flashing TWRP or CWM is not possible atm.
Click to expand...
Click to collapse
Is there any way to perform a nandroid-style backup/restore then?
I'd like to flash the latest stock ROM but would like a return path to what I currently have now if things go badly.
I would check out the Verizon s4 forum to confirm whether your bootloader is locked. If it is locked, there's very little you can install in terms of ROMs. Not sure about TWRP or CWM.
http://forum.xda-developers.com/galaxy-s4-verizon
Facing Same Problem
I'm Also Facing The Same Problem.
Is There Anybody To Tell Me That How Can I Check My Bootloader Status (Locked/Unlocked)
Shazilsonu said:
I'm Also Facing The Same Problem.
Is There Anybody To Tell Me That How Can I Check My Bootloader Status (Locked/Unlocked)
Click to expand...
Click to collapse
It's easy, if you have updated your phone to a newer version of Android, then your BL is locked.
NB1 4.4.2 is My Official ROM. I Updated It To NJ4 4.4.4 Using Android System Recovery And Then I Updated It 5.0.1 Lollipop Via Same Way.
I Think My Bootloader Is Locked.
Bootloader on LP is definitely locked.
So What Should I Do "audit13"
Once the bootloader is locked, you will need to use safestrap to flash files. Also, you'll be limited to tw-based custom ROMs.
http://forum.xda-developers.com/showthread.php?t=2428254
Safestarp Is not Working Dude....
I Tried To Install Safestarp And I Have Lost My Android System Recovery.
Now When I Boot My Device Into Recovery Mood It Takes An Error And My Device Goes to Download Mood.
My Device Has No Recovery Now.
This may help: http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
Thanx Dude.
Thanx for helping.
Did you fix it?
Soled
audit13 said:
Did you fix it?
Click to expand...
Click to collapse
I Have Soled My Galaxy S4 AT&T i337.
Now I'm Looking For Galaxy Note 3.
So What Model Number I Should Buy Which Can Be Rooted Easily And Has Unlocked Bootloader.
I believe the att version of note 3 also has a locked bootloader. Get the T-Mobile version or the Canadian version.
Galaxy Note 3
audit13 said:
I believe the att version of note 3 also has a locked bootloader. Get the T-Mobile version or the Canadian version.
Click to expand...
Click to collapse
Hi Dude.
Whats Up?
I Have Bought Samsung Galaxy Note 3 (SM-9005)
I Have Rooted It But I Want To Downgrade It To It's Official ROM And Than Update It Step By Step After Rooting My Device.
Whats Your Opineon About.
All you need to run OTA updates is use the unroot option from the root program and have a stock recovery. OTA updates will not work on a rooted system.
The quickest way to update your phone to the latest ROM would be to flash the lastest stock ROM from sammobile and then check for OTA updates.
http://www.sammobile.com/firmwares/database/SM-N9005/

Root achieved for snapdragon S7

Take a look at this guys.... It's root for all variants on all the carriers! Pretty exciting even though the bootloader may not be unlocked!
http://www.droid-life.com/2016/07/05/root-achieved-galaxy-s7-galaxy-s7-edge/
Sent from my SM-G935V using Tapatalk
pgalioto said:
Take a look at this guys.... It's root for all variants on all the carriers! Pretty exciting even though the bootloader may not be unlocked!
http://www.droid-life.com/2016/07/05/root-achieved-galaxy-s7-galaxy-s7-edge/
Click to expand...
Click to collapse
Verified working on my VZW S7 Edge.
Sweet! Just a few questions?
1. This does trip Knox right?
2. Can we downgrade firmwares through odin? Samsung did not block downgrade?
NBreunig3 said:
Sweet! Just a few questions?
1. This does trip Knox right?
2. Can we downgrade firmwares through odin? Samsung did not block downgrade?
Click to expand...
Click to collapse
1: Dont think so.
2: You can use this on the current update. You are not downgrading firmware. Just kernel.
I am rooted on Verizon S7. It runs a little warm and uses a bit more battery. I am most likely going to flash back to stock shortly. Does anyone know if I can use just the available firmware? Also do I have to use the custom ODIN that was used to flash the root or will the normal one do?
has anyone took a chance at this on the SM-G935J Japanese Variant??
Has anybody tried this on the Japanese SM-G935J Snapdragon Variant? I'm curious... would it work?
yoursogay44 said:
I am rooted on Verizon S7. It runs a little warm and uses a bit more battery. I am most likely going to flash back to stock shortly. Does anyone know if I can use just the available firmware? Also do I have to use the custom ODIN that was used to flash the root or will the normal one do?
Click to expand...
Click to collapse
You have to use the kernel provided. It is a rooted engineer kernel. This is what allows root.
Any other japanese users try this?
Reaperc said:
Has anybody tried this on the Japanese SM-G935J Snapdragon Variant? I'm curious... would it work?
Click to expand...
Click to collapse
I'd really like to root this phone
Can we close this thread please?
Thread cleaned.
:good:

G900V tried to root with CF Root and now I have weird issues

I flashed the appropriate CF Root for my phone using download mode and odin, everything was fine until I turned the phone back on, I started with android 6.0.1, and I downloaded the 6.0.1 CF Root file, but now the phone is on 4.4.2, and it seems like a factory testing version. There are only apps that are on here for system testing, no google play services or anything else. Even when I plug my phone into my PC it does not show up anymore. I have tried to flash the stock ROM but I don't know what I am doing. I tried to install TWRP but I don't know how to do that either. I attached some screenshots I was able to get off the phone via Wifi file transfer, and I was able to install it by sending the apk via bluetooth. Please help.
Confirm that the phone model # is sm-g900v in download mode. If it is, flash the latest stock ROM from sammobile.com using Odin: https://www.sammobile.com/firmwares/galaxy-s5/SM-G900V/VZW/ and try cfautoroot again.
audit13 said:
Confirm that the phone model # is sm-g900v in download mode. If it is, flash the latest stock ROM from sammobile.com using Odin: https://www.sammobile.com/firmwares/galaxy-s5/SM-G900V/VZW/ and try cfautoroot again.
Click to expand...
Click to collapse
I am downloading the latest 6.0.1 firmware (I guess firmware is the same thing as a ROM?) it's going to take a while tho since its 1.67GB and is downloading at >500kbs
Yes, the words ROM and firmware seem to be used interchangeably on XDA.
Always a good idea to keep a copy of that firmware in case you need to flash back to stock.
audit13 said:
Yes, the words ROM and firmware seem to be used interchangeably on XDA.
Always a good idea to keep a copy of that firmware in case you need to flash back to stock.
Click to expand...
Click to collapse
lets hope the flash works, because I've been trying to flash ROMS and I keep getting errors
Which ROMS are you flashing? The bootloader is unlocked?
audit13 said:
Which ROMS are you flashing? The bootloader is unlocked?
Click to expand...
Click to collapse
I was trying to flash any ROM I could, but no the bootloader I think is locked, like I said I'm not too sure what I am doing since I couldn't really find a solid tutorial out there
If the bootloader is locked, this could be the reason that cfautoroot is not working. I'm not 100% about this since the 900v is a phone that is exclusive to Verizon. I'm in Canada and the s5 bootloader is not locked for any Canadian carriers.
As for flashing custom ROMs such as Lineage, it can't be done with a locked bootloader.
audit13 said:
If the bootloader is locked, this could be the reason that cfautoroot is not working. I'm not 100% about this since the 900v is a phone that is exclusive to Verizon. I'm in Canada and the s5 bootloader is not locked for any Canadian carriers.
As for flashing custom ROMs such as Lineage, it can't be done with a locked bootloader.
Click to expand...
Click to collapse
How do I unlock the bootloader?
Here's a thread: https://forum.xda-developers.com/ve...t/rd-unlocking-galaxys-s5-bootloader-t3337909
Whenever flashing a phone, it's possible that the phone winds up bricked.
Ashchu117 said:
How do I unlock the bootloader?
Click to expand...
Click to collapse
The following is also a good one for unlocking the G900V...
https://forum.xda-developers.com/showthread.php?t=3561529
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.
Okay, I will try and see what happens once the download of the stock ROM is done, I'll keep you guys posted... thanks so much!
stock ROM flashed successfully!!!
audit13 said:
Here's a thread: https://forum.xda-developers.com/ve...t/rd-unlocking-galaxys-s5-bootloader-t3337909
Whenever flashing a phone, it's possible that the phone winds up bricked.
Click to expand...
Click to collapse
I have the eMMC CID 11, says I can't unlock the bootloader
Ashchu117 said:
I have the eMMC CID 11, says I can't unlock the bootloader
Click to expand...
Click to collapse
Please see the OP information on the thread I had provided you (on my previous post).
It has instructions for unlocking the bootloader on the CID11. Be sure to take your time and follow it carefully.
I've got 2 G900V devices with the CID11 and their both Unlocked with TWRP and one with the Official LineageOS 14.1 and the other has, an oldie but goodie, CyanogenMod 13 Snapshot build (for testing purposes).
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.

firmware

I recently unlock my bootloader on my Verizon note 3. Is it still safe to flash firmware?
Can you elaborate as to what your question is? As in, which firmware are you referring to? Custom ROMs maybe?
terminator911 said:
Can you elaborate as to what your question is? As in, which firmware are you referring to? Custom ROMs maybe?
Click to expand...
Click to collapse
I heard that after unlocking bootloader it was not feasible to flash a stock ROM with Odin anymore
That is inaccurate! You can still flash stock firmware via Odin and it will work fine as long as you understand that doing so will put you right back to where you were before; locked bootloader and stock recovery.
terminator911 said:
That is inaccurate! You can still flash stock firmware via Odin and it will work fine as long as you understand that doing so will put you right back to where you were before; locked bootloader and stock recovery.
Click to expand...
Click to collapse
Nope. It won't allow. I tried several times. Thanks.
jerryspring said:
Nope. It won't allow. I tried several times. Thanks. It's cuz I unlocked the bootloader
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