[BOOT] Remove Boot Warning - All Exynos Devices - After Root - Tutorial - 14th December 2020

Was this useful and you were satisfied with the outcome...?

  • Yes

  • Neutral

  • No


Results are only viewable after voting.

Dante63

Senior Member
Nov 1, 2015
1,383
1,231
143
27
the Clouds
Hello everyone :cool:...
I hope you all are fine...

Merry Christmas and Happy New Year in Advance, like really really in advance 🎄🎅 lol ...

First, I'd like to say God Bless @Dr.Ketan, @geiti94 & @ianmacd as a Samsung Device owner, I've always rooted my device through their hard efforts in making guides and flashables and God Bless @topjohnwu for Magisk...
God bless all developers contributing to XDA Forum too...

Right, so after getting the root on the phone, especially in the new Android OS or the majority of Android devices or so,
The boot-up screen wasn't like what we were used to,
There are many warnings which kind of screams ROOTED device aside from not being beautiful...

I decided on my Samsung Galaxy Note 10 to fix that, experimented and I loved it, but one thing happened...
Just like I did with the SoundMod to enable Duel Speaker on my previous phone, Many members posted asking if it can be done for their device...
So here I am, Opening another tutorial thread that hopefully would be helpful to many of you on how to handle the problem of removing the annoying boot warning...

So let's get started but first:
Important Notice (Hijack not intended):
I did search in XDA thread for different devices (randomly selected) and some had a thread and some did not for fixing the warning...
What I want to say is, I am sharing my own experience and experiment from my Galaxy Note 10 Plus and Galaxy Note 20 Ultra...

My Intentions are to simply support all Devices with a solution as much as I can (I sadly don't have time to check the Snapdragon but I did try with @louforgiveno & I thank him for experimenting with me, forgive me for not being able to help snappy users, if I get the time, I will defiantly look into making it possible)...
ok now, next is getting your files ready, you will need:
  • 7-Zip Zstandard Edition credits go to Tino Reichardt...
  • Your Original ROM (You mainly need the BL aka Bootloader file but it's good to have the original ROM), get it from the website or XDA, if you just want to remove the boot warning and don't want to download the entire ROM then regardless of the CSC version, make sure the ROM or the BL you will grab has the exact boot screen of yours, again, you only need the BL (Bootloader) file which would look like BL_****_****_****_***_***_why_so_long_name.tar.md5 or so...
Now the instructions, LET'S GO:
  1. BACKUP YOUR PHONE BEFORE FLASHING ANYTHING, ok sorry for yelling, I just don't want to see any of you go through the hustle of going into boot loops or anything else...
  2. Install the 7zip Zs edition...
  3. now right-click on the BL file and to 7-Zip ZS -> open archive...
  4. Drag the file up_param.bin.lz4 outside anywhere you want...
  5. now right-click on the up_param.bin.lz4 and 7-Zip ZS -> extract here, you will have up_param.bin...
  6. now right-click on the up_param.bin file and 7-Zip ZS -> open archive...
  7. Inside 2 images are important, 1 is the warning in red font and the other is the logo if you wish to customize your boot screen, make it cool :cool: or keep it as it is stock...
  8. So drag the following "logo.jpg" and "booting_warning.jpg" to anywhere you want and minimize the window...
    Some of you may ask & wonder about "svb_orange.jpg" as this is the bootloader warning :unsure:, yes true, but there is no need for it if you wish to have a normal boot screen
  9. Edit with paint "booting_warning.jpg" and make it completely black...
  10. Now for "logo.jpg" you have 2 options:
    1. If you want to show the stock logo instead of bootloader warning, rename "logo.jpg" to "svb_orange.jpg" and you're done...
    2. If you want a custom logo, edit the logo without resizing or changing its dimensions, make a duplicate, one will be "logo.jpg" and the other is "svb_orange.jpg"...
  11. Now open the minimized window or if you closed the window then right-click on the up_param.bin file and to 7-Zip ZS -> open archive...
  12. Drag the images back into the up_param.bin and close the window...
  13. Now right-click on up_param.bin and 7-Zip ZS -> Add to archive...
  14. Change Archive format to tar, change nothing else, and hit ok...
  15. Feel free to change the name from up_param.tar to whatever you want like "I_am_cool_I_fix_bl_warning.tar" 😂 in my case I would write the device name and version with meaningful description "STOCK_NOTE_20_ULTRA_OS10_FIX_BL.tar", IT IS VERY IMPORTANT TO NOT USE SPACE, DOTS OR SPECIAL CHARACTERS WHEN NAMING THE FILE, ok ok, I am calm now...
  16. Now Flash the tar file treating it as a BL file when flashing (NOT RECOVERY FLASHABLE)...
  17. I think I said "now" a lot but don't worry we are done lol 😂...
  18. Enjoy looking at your phone, no more warning or annoying press to continue, it will boot up like it used to 😁...
Here is an example of before and after for Samsung Galaxy Note 10 plus 5G, you should be able to tell which is before and which is after and what I mean by stock (10.1) and center (custom) (10.2)...
Before BL Flash 10+ 5G.gif
<-- Before & After -->
After BL Flash 10+ 5G.gif

Don't Forget to Smash the (y)THANKS (y) Button
and
if you're very happy, support or buy me a cup of coffee through a donation, that would be nice 🙂...


...:cowboy: Happy Modification :cowboy:...
 
Last edited:

Dante63

Senior Member
Nov 1, 2015
1,383
1,231
143
27
the Clouds
F.A.Q
Q. Is it safe?
A. If you follow my instructions, yes, very safe, you are simply replacing images, of the bootloader, you just need to flash it as BL and not somewhere else...

Q. Do I need to backup?
A. ALWAYS BACKUP, ALWAYS BACKUP, ehm, ok ok I am calm, you always must have a backup when you want to flash anything...
Never experiment without backing up...

Q. What could go wrong?
A. Probably boot loop and you might need to reflash the stock and go through the process of rooting everything again unless you have a backup you can restore through your custom recovery...

Q. Can I have a custom boot screen?
A. Absolutely, you can have anything, just use the same dimensions of the image and don't make it heavy sized (seriously don't make it big, stick to its range like 200 Kbs is fair)...

Q. While I am there changing images, can I change other images?
A. You can but don't be surprised if you can't read anything written on the screen later lol...

Q. What is the impact of this on my Device?
A. Nothing, you just replaced your phone boot images...

Q. If I reflash the ROM, will it reset and go away?
A. Yes it will go and it will show you the bootscreen of the flashed ROM (stock or custom)...
 
Last edited:

Dante63

Senior Member
Nov 1, 2015
1,383
1,231
143
27
the Clouds
I have a snapdragon N20 Ultra, to test it should I follow the same steps or there is something else?
This is Exynos solution...
I didn't have time for Snapdragon...
I'm trying to find some time and then I'll find a Snapdragon volunteer and work on finding a solution...
 

Dante63

Senior Member
Nov 1, 2015
1,383
1,231
143
27
the Clouds
I can help
Please DM me, and when i have time, i will message you with potential ideas on how to locate the boot images, keep in mind that you may have to reinstall the ROM or restore nandroid backup in case of any flashing failure or something goes wrong after successful flashing...
 

Dante63

Senior Member
Nov 1, 2015
1,383
1,231
143
27
the Clouds
I'm willing to you just need a boot from my device? It's a n9750u VZW note 10 +
You need to pull a file from your phone, because snapdragon ROM is not easy to navigate through, files are uncompressed and installed by the device itself, unlike Exynos, we can extract and view files... the risks are when pushing back the file (that is if the file was found), will it boot normally, or will it end up in bootloop or make the system no longer functional, hence why I said take a backup and nandroid, it might be a long journey...
 

t2noob

Senior Member
Feb 26, 2010
323
21
38
You need to pull a file from your phone, because snapdragon ROM is not easy to navigate through, files are uncompressed and installed by the device itself, unlike Exynos, we can extract and view files... the risks are when pushing back the file (that is if the file was found), will it boot normally, or will it end up in bootloop or make the system no longer functional, hence why I said take a backup and nandroid, it might be a long journey...
I have a backup from today I was messing with weta mod earlier. If your willing to give it a go I'll try my best