[A310F][HELP] Some questions on modding an A3 2016 - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hi all!
I have a spare Galaxy A3 2016 (A310F) on which I'd like to install /e/ OS. TL;DR, I have some concerns about modding this phone:
I'm aware of Knox e-fuse. As I know, Knox gets tripped when the phone runs another bootloader or recovery instead than the stock ones. Is it correct? Does the fuse get tripped if I only root the phone?
About the root, I need it because I've read it's possible to install a ROM without without flashing a custom recovery or bootloader, through a tool called FlashFire (I've read this in a discussion about Galaxy S6, so I guess it should be safe to assume it could work also for A3). Does anyone else had experience with this tool?
I also would like to go back to stock if something fails. I can't find a guide to do this for the A3. Any suggestion? Also, where can I download stock firmwares?
I'm using a Linux machine, I know there is a tool called Heimdall (I guess this is the way it's written...). In the past I had problem to make it work, so I had to revert to windows and use Odin. At now, because I can't install another SO on my current machine, is it safe to use to go back to stock?
As an example, this is the workflow I have in mind:
1.Patch the stock boot.img through this guide to have root --> 2.Flash the ROM through FlashFire, without touching stock recovery, nor bootloader.
Thanks in advance to anyone willing to help. Bye!
EDIT #1: more detailed explanations...

Related

[Q] Restore factory image after tripping KNOX on 900t

Hey there, I'm an idiot... I tripped KNOX and now phone is stuck on Tmobile boot screen. With so many different ways to do things and so many variants of this frickin phone and Android it seems the rules are every changing.
So my questions:
1.) How can I get this thing back to working? Can I flash a factory image with ODIN? If so which factory image do I use and what version of ODIN and what boxes need to be ticked in ODIN?
2.) Will #1 reset KNOX? Can KNOX be reset?
3.) Whats the best method to get the thing rooted so I can put a ROM on it. I hate TouchWiz. I tried using this method but it landed me here... http://www.androidrootz.com/2014/04/how-to-root-galaxy-s5-recovery-root.html
Thanks in advance....
Can I just flash the corresponding firmware with ODIN? Is it that simple? Does the firmware version displayed in factory recovery always correspond to the firmware to flash with ODIN? Any insights would help!!!! Thanks for your time!
sammobile dot com, grab a stock ROM for your model S5 (G900T), flash with ODIN
KNOX is permanently tripped now, no way to reset
your knox is permanently tripped, so might as well do what you want with the phone.
if you can get into download mode, you should be able to flash a recovery through ODIN, and then flash the rom of your choice. if that doesn't work, follow Detection's post above and flash a factory Tmobile rom through ODIN and start again.
That's all great thanks all, but does the firmware have to match the version that corresponds to the recovery that is currently on it? For instance, if I flashed 5.1.1 me thinks I wouldn't be able to root it or downgrade it thereafter, correct?
[bor]Its the loosey goosey instructions for multiple methods of doing the same thing for various android versions that make this sketchy. I found it easier to flash my HTC magic with jesus freak and a gold card than it is to flash this thing...or maybe my brain is decaying. Anyway, not what I expected for a common android phone. [/eor]

Questions on Root / Recovery & Kernel

Hello there!
I'm new to the Samsung's world so I have few questions I hope someone can answer.
1, I am a fan of stock kernel and I noticed TWRP has a recovery and there is a No root method mentioned using Odin.
https://twrp.me/devices/samsunggalaxys6edgeplus.html
So if I flash this recovery and flash the SU will the device boot? So do I need the custom kernel to get the phone booted with custom recovery?
2, I hear we will trip the Knox in the process of root. Do I lose Knox functionality? Since I use Knox for my company apps I would like to know if I would lose that functionality ?

rooting i9505 with XXUPPI1

Hello to all ..
is there any chance to root my S4 with the i9505XXUPPI1 version installed on it Or is there any other Way to Downgrade it to an earlier version and root it thereafter?
greetingz from Germany
HouseMeischda
You could try cfautoroot or flash TWRP and then flash supersu from TWRP.
CF-Auto-Root is your best option.
Thanks for your help.
For all i9505 Users with the same Problem ..
First i've flashed the original I9505XXUHOJ2 Firmware who listed on chainfire's Page, to be on the safe way =). Then i've flashed the cf-root Kernel from Chainfire. After that i installed the newest TWRP recovery and then the Resurrection Remix Rom 5.5.9.
Now i will test everything but seems to be nice till this moment =)
Thread can be closed .. Thanx
BTW, rooting is not required to install TWRP with Odin.
audit13 said:
BTW, rooting is not required to install TWRP with Odin.
Click to expand...
Click to collapse
True. But some people (including me) have had problems getting TWRP to stick with the Odin install.
I had to use an app to flash it when I took to the custom software world.
A user had the same problem few days ago. Also solved it with the app method.
I've never had a problem with getting TWRP or CWM to stick on the s2, s3, s4, note 1, note 2, or note 3 by unchecking auto reboot in Odin before flashing recovery. Once recovery has been flashed, I remove the battery and immediately boot into recovery. I found that not booting into recovery right after flashing will cause the stock recovery to overwrite the custom recovery when the phone boots normally.
Thats right. But in my case and first of all i wanted to test the stock rom with only root Access. But then i decided to install a custom one very quickly =)
After all i installed latest twrp via twrp-app, backed up everything, perform a full wipe and flashed ResurrectionRemix 5.5.9. Now i went to dirty unicorn rom on Android 6.0 base. Very nice performance, very clear Design and absolutely stable.
One more word to overriding the Recovery. In many other Posts, this Problem seems to be normal, if the S4 was already updatet to an official lollipop rom(with the new knox Bootloader, that verifies signatures of recovery and kernel) in the past. I think this issue was not present with kitkat and oder versions.
But with my little detour, i also was not effected from that override
Hope this can help others with similiar reservations who i had before. Not the fear of loosing warranty(because phone is anyway too old) but fear of tripping the bad eFuse and thus hardbricking the phone. BUT WELL DONE !!!
Many thanks for the support .. And greetingz to all =)
There is no eFuse that will hard-brick the S4.
It only has an eFuse for Knox, which simply prevents you from resetting the Knox counter back to 0x0, but it won't hard-brick anything.

Samsung Galaxy Tab A 8.0 T350/Root/Recovery/Flashing Questions (Newbie)

Very new to rooting. and trying to learn and tinker.
Purchased Samsung Galaxy Tab A 8.0/SM-T350NZAAXAR wifi only.
Performed updates and am on 6.01
Rooted it by following these instructions (http://www.droidviews.com/root-galaxy-tab-a-8-0-and-install-twrp-sm-t350-t355-sm-p350-p355/)
Downloaded and then removed an app to confirm that tablet is rooted.
Did not realize that I had Knox --- did not even know about Knox and when I reboot. I get a yellow message in left corner
Set Warranty Bit - Kernel --- not a big deal since it is not under warranty anyhow. Are there ways to reset this?
Questions/need explanation and/or links to explain
? How do I use the TWRP recovery to make a backup ---
? How do I use the TWRP recovery to go back to the stock version I had ---can that be done?
? Is it safe to use the unroot in SU Superuser ---not that I want to ---just learning and want to know.
? I can no longer update via normal channels because it now says custom ----so to update is it always via flashing using Odin?
? Where do I find custom ROM's for my device and do I flash using Odin?
? What is the difference between Odin and Kies?
? Is there a list somewhere of what system apps are safe to delete?

Possible to revert to stock recovery?

Hi,
I am currently trying to get into Andriod Development. I have an old Note 4 that I can play with and want to try some things. Haven't done so yet.
So, I understood that it is necessary to move to a custom recovery to be able to root the phone or to flash custom ROMs. I think I also understood to go back to the stock ROM.
However, an information I haven't found yet is: If I flash a custom Recovery, e.g. CWM or TWRP, is it possible to revert to the stock recovery in any way?
thanks in advance.
Lars
califax2k said:
Hi,
I am currently trying to get into Andriod Development. I have an old Note 4 that I can play with and want to try some things. Haven't done so yet.
So, I understood that it is necessary to move to a custom recovery to be able to root the phone or to flash custom ROMs. I think I also understood to go back to the stock ROM.
However, an information I haven't found yet is: If I flash a custom Recovery, e.g. CWM or TWRP, is it possible to revert to the stock recovery in any way?
thanks in advance.
Lars
Click to expand...
Click to collapse
Yes, you flash via Odin the firmware for your phone model - https://www.sammobile.com/firmwares/
Yes, you can use the repair 4 files firmware for your phone model (example here is 910C) - https://firmware.gem-flash.com/index.php?a=browse&b=category&id=1268
Yes, use Samsung Smart Switch for PC - like here

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