BootLoader Downgrade from 4.3 and keep Wifi and Kill Knox

seanzscreams · Oct 29, 2013

To downgrade 4.3 I317UCUBMJ4 bootloader...( ATT only for now)

Flash all in pda slot
using odin 3.07
Thanks to Dr.Ketan

I downloaded from sammobile MA4 4.1.2
I ripped out sbin and tz then created a tar

Step 1 (bootloader in here)
flash this first and reboot which breaks wifi
but returns you to the 4.1.2 knox free Booloader

Ma4 Bootloader and Tz.img
http://d-h.st/dqq

----------------------------------------

Step 2 (no bootloader in here)

flash this to bring wifi back
but keep your knox free 4.1.2 bootloader.
Allowing you to freely flash between 4.1.2 roms and the latest 4.3 leak
Without having to one click,Keeping Wifi Throughout and removing Knox

4.3 Param.bin and Tz.img
http://d-h.st/OYC

Misc ------------------
Here is the new 4.3 Bootloader
just in case its needed . so you don't have to flash one click just to get there
Contains
4.3 sboot.bin param.bin and tz.img from the latest I317UCUBMJ4 Att 4.3 leak
http://d-h.st/q3a

GQJ · Oct 29, 2013

Thank you for this fix, and the of course the ROM that has changed my life.

Two Questions

1. I did the One Click, and am on Skynote, does it matter what ROM I am on if I wanted to start this process?

2. I can flask a 4.1.2 backup, but I cannot create a 4.3 backup (let alone restore it). would being on the 4.1.2 bootloader allow me to make a 4.3 backup?

Thanks again.

borijess · Oct 29, 2013

I flashed the one click when it came out. Then I went and flashed Jedi x20 with no issues. Should I still need to do this if I decide to go back to 4.1.2 again? Right now I am on your rom skynote 4.3.

Sent from the TermiNOTEr 2!

ssmr2t · Oct 29, 2013

Oh man, tiddlywinks... I wish us tmoble folk could flash such a mod. any chance of support one day? :cowboy:

Spacemonkie4207 · Oct 29, 2013

Can I flash this on my i317M ?

Sent from my SGH-I317M using Tapatalk

md1008 · Oct 29, 2013

I have i317 just asking on behalf of those who don't.

Could you use the 4.3 modem to get WiFi or is the BL specific to att?

I am running kit kat 4.4. on my note 2000

Spacemonkie4207 · Oct 29, 2013

Just tried and it Failed

Bruce lee roy · Oct 29, 2013

So does this finally confirm there's no eFuse the n2?

seanzscreams · Oct 29, 2013

Bruce lee roy said:
So does this finally confirm there's no eFuse the n2?

Doesnt look like it.. but you.never know

seanzscreams · Oct 29, 2013

borijess said:
I flashed the one click when it came out. Then I went and flashed Jedi x20 with no issues. Should I still need to do this if I decide to go back to 4.1.2 again? Right now I am on your rom skynote 4.3.

Sent from the TermiNOTEr 2!

I would.. kill that nasty knox BL

cob94440 · Oct 29, 2013

seanzscreams said:
To downgrade 4.3 I317UCUBMJ4 bootloader...( ATT only for now)

Flash all in pda slot
using odin 3.07
Thanks to Dr.Ketan

I downloaded from sammobile MA4 4.1.2
I ripped out sbin and tz then created a tar

Step 1 (bootloader in here)
flash this first and reboot which breaks wifi
but returns you to the 4.1.2 knox free Booloader

Ma4 Bootloader and Tz.img
http://d-h.st/dqq

----------------------------------------

Step 2 (no bootloader in here)

flash this to bring wifi back
but keep your knox free 4.1.2 bootloader.
Allowing you to freely flash between 4.1.2 roms and the latest 4.3 leak
Without having to one click,Keeping Wifi Throughout and removing Knox

4.3 Param.bin and Tz.img
http://d-h.st/OYC

Misc ------------------
Here is the new 4.3 Bootloader
just in case its needed . so you don't have to flash one click just to get there
Contains
4.3 sboot.bin param.bin and tz.img from the latest I317UCUBMJ4 Att 4.3 leak
http://d-h.st/q3a

If you flash the new bootloader only, Will it make wifi ok?

killahhops32 · Oct 29, 2013

Is there anyway to flash this using mobile Odin?

Sent from my SAMSUNG-SGH-I317 using Tapatalk

tvd0405 · Oct 29, 2013

seanzscreams said:
I would.. kill that nasty knox BL

How do we know if knox has been killed?

TXRangerXDA · Oct 29, 2013

Is the Knox BL what's keeping us from being able to restore backups of these leaks (Both SN versions, as well as one-click)? Meaning, if we downgrade bootloader, will restores in TWRP start working, or is that something else?

Awesome work BTW.

pc747 · Oct 29, 2013

cob94440 said:
If you flash the new bootloader only, Will it make wifi ok?

I flashed last night when seanz posted in his skynote thread. I can confirm wifi works on att.

tvd0405 · Oct 29, 2013

TXRangerXDA said:
Is the Knox BL what's keeping us from being able to restore backups of these leaks (Both SN versions, as well as one-click)? Meaning, if we downgrade bootloader, will restores in TWRP start working, or is that something else?

Awesome work BTW.

Have you tried to restore yet? Did it work?

TXRangerXDA · Oct 29, 2013

tvd0405 said:
Have you tried to restore yet? Did it work?

I have not tried. I did downgrade the BL with no issues, but ... alas, I have set up my phone so many times in the last 4 days that I don't have the energy to try it right now

softballjunkee13 · Oct 29, 2013

When I was running sky note the 1st time I restored jedi 19 without an issue. But I didn't Odin the leak that time

Sent from my SAMSUNG-SGH-I317 using Xparent Blue Tapatalk 2

tvd0405 · Oct 29, 2013

I did the backup after flashing the old boot loader and wifi fix, wiped the system and data and then restored from the backup and the phone works fine. I have not tried switching between different ROMs yet. Will try it when I have more time

TXRangerXDA · Oct 29, 2013

tvd0405 said:
I did the backup after flashing the old boot loader and wifi fix, wiped the system and data and then restored from the backup and the phone works fine. I have not tried switching between different ROMs yet. Will try it when I have more time

Awesome. The issue was with restoring the 4.3 leak ROMS (both Skynote and the one-click version I believe). I was able to restore Beanstalk no problem from this one. So, it seems that is fixed

Thanks!

BootLoader Downgrade from 4.3 and keep Wifi and Kill Knox

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