I was wondering if I may run into any problems by doing this.
I know that on an AT&T phone (i747), if you do that, you may lose your modem and needs to be reflashed (you get a null IMEI)
Is it the same on a SGH-T999? I was planning to flash this ROM:
http://www.sammobile.com/firmwares/3/?download=26636
Thanks
There is no 4.4.2 to downgrade from for the T999.
If you just have a 4.4.2 Rom, you don't need to do anything.
The firmware you linked is the latest available so you can flash it regardless of what you have now.
There is no 4.4.2 update for the T999 so yes you can flash it but it is not a ROM, it is firmware, please do not confuse these two they are very different!
Yeah... I'm afraid I am confused. What I did was to flash this:
http://forum.xda-developers.com/showthread.php?t=2690947
Isn't that a ROM?
However I would like to go back to 4.3, so I was just wondering if I could have any problems.
Sorry for the noob questions. I think it was clear to me, but I'm afraid it's not...
Thanks
Yes that is a rom, what you linked to in the first post is firmware which contains more than just the system and that is where you run into problems when downgrading
serio22 said:
Yes that is a rom, what you linked to in the first post is firmware which contains more than just the system and that is where you run into problems when downgrading
Click to expand...
Click to collapse
So if I'm on 4.4.4 right now, is there a way to go back to 4.3?
_LEM_ said:
So if I'm on 4.4.4 right now, is there a way to go back to 4.3?
Click to expand...
Click to collapse
Yes, flash the link you provided in the first post or flash a 4.3 rom.. Understand this, flashing a rom will not determine if you can downgrade or not, flashing firmware will. Since there is no 4.4 firmware for the T999 you can still flash the 4.3 firmware. If there was a 4.4 firmware and you took the OTA or updated via Odin then the only thing you could do is flash a 4.3 rom, firmware will not be an option
Edit: oh and btw I accidently pressed the thanks button so you got a free one
serio22 said:
Yes, flash the link you provided in the first post or flash a 4.3 rom.. Understand this, flashing a rom will not determine if you can downgrade or not, flashing firmware will. Since there is no 4.4 firmware for the T999 you can still flash the 4.3 firmware. If there was a 4.4 firmware and you took the OTA or updated via Odin then the only thing you could do is flash a 4.3 rom, firmware will not be an option
Edit: oh and btw I accidently pressed the thanks button so you got a free one
Click to expand...
Click to collapse
Thanks. I understand better now. I have always been kind of confused between ROMs and firmwares.
PS: I triple thanked you.
Related
Hey guys,
I'm trying to go back to a stock Touchwiz ROM from CyanogenMod 10.2. My only problem is, I can't Odin back to a stock from because the only Odin compatible file I have is 4.1.1 which my phone will no longer go to since my baseband was updated after trying a former 4.3 ROM.
Can anyone link me to a 4.3 ROM that I can flash in Odin? I'm asking because most of the ROM's I'm finding that are 4.3 require you to be on a TW ROM before flashing their ROM. Thanks.
n_alvarez2007 said:
Hey guys,
I'm trying to go back to a stock Touchwiz ROM from CyanogenMod 10.2. My only problem is, I can't Odin back to a stock from because the only Odin compatible file I have is 4.1.1 which my phone will no longer go to since my baseband was updated after trying a former 4.3 ROM.
Can anyone link me to a 4.3 ROM that I can flash in Odin? I'm asking because most of the ROM's I'm finding that are 4.3 require you to be on a TW ROM before flashing their ROM. Thanks.
Click to expand...
Click to collapse
Go to http://www.sammobile.com/firmwares/and put in your phone info and download the stock file.
Satstalker said:
Go to http://www.sammobile.com/firmwares/and put in your phone info and download the stock file.
Click to expand...
Click to collapse
This link is useless for me as it does not have a 4.3 stock rom listed in their official firmwares. They have only up to 4.1.2 which I cannot Odin back to since my baseband was already updated.
n_alvarez2007 said:
This link is useless for me as it does not have a 4.3 stock rom listed in their official firmwares. They have only up to 4.1.2 which I cannot Odin back to since my baseband was already updated.
Click to expand...
Click to collapse
Maybe there is no update for your carrier yet! A thanks would be nice for trying to help you. But hey next time i wont even reply
|ROM|Bootloader|Kernel|Modem| AT&T Official 4.3 MJB |24 Nov 2013| There you go all stock. make sure you hit the thanks button for everyone (not my files I just found them)
You cant flash this in odin but can use TWRP or CWM. will get you back all stock. Good luck...
theramsey3 said:
|ROM|Bootloader|Kernel|Modem| AT&T Official 4.3 MJB |24 Nov 2013| There you go all stock. make sure you hit the thanks button for everyone (not my files I just found them)
You cant flash this in odin but can use TWRP or CWM. will get you back all stock. Good luck...
Click to expand...
Click to collapse
Do I have to be on a stock rom to use this? I'm currently on Quantum V3 and I don't have access to a stock rom to revert to since my baseband was updated.
n_alvarez2007 said:
Do I have to be on a stock rom to use this? I'm currently on Quantum V3 and I don't have access to a stock rom to revert to since my baseband was updated.
Click to expand...
Click to collapse
No you don't have to be on the stock rom to use that, but the bootloaders are for 4.3 so if you haven't updated yet this will update you.
You can flash any rom you want to as long as you do not mess with the bootloader you will be OK. I do not know if this work on anything besides an at&t phone using it on anything else is done so at your own risk just the same as using it.
What about the recovery? any way to get a stock recovery image?
I'm considering upgrading to a 4.3 rom from 4.1.2 and I've learned that a stock image of 4.3 must be flashed first (thorugh Odin?) to update the bootloader to 4.3.
Is there any drawback to upgrading? Will I still be able to flash 4.1.2 roms using the 4.3 bootloader? Will I be able to downgrade to the 4.1.2 bootloader (should the need arise)?
Side question: is Odin the only way to update the bootloader? Can it be flashed through TWRP?
drdoombot said:
I'm considering upgrading to a 4.3 rom from 4.1.2 and I've learned that a stock image of 4.3 must be flashed first (thorugh Odin?) to update the bootloader to 4.3.
Is there any drawback to upgrading? Will I still be able to flash 4.1.2 roms using the 4.3 bootloader? Will I be able to downgrade to the 4.1.2 bootloader (should the need arise)?
Side question: is Odin the only way to update the bootloader? Can it be flashed through TWRP?
Click to expand...
Click to collapse
You'll have Knox. (Stock) which locks u down cause u can't downgrade and by rooting, you're going for a un-reset-able Knox Warranty Void trigger. Downgrading bootloader is impossible as of now, but flashing ROMs should be possible. (Should, not damn sure)
Side Answer: don't think so. Just flash stock 4.3 through TWRP and u should be good to go.
Smack that thanks button If I helped!
Note 2 LTE powered by Illusion ROM and Plasma Kernel.
Sent from dat small country called Singapore.
P.S. Quote my post for replies ASAP.
drdoombot said:
I'm considering upgrading to a 4.3 rom from 4.1.2 and I've learned that a stock image of 4.3 must be flashed first (thorugh Odin?) to update the bootloader to 4.3.
Is there any drawback to upgrading? Will I still be able to flash 4.1.2 roms using the 4.3 bootloader? Will I be able to downgrade to the 4.1.2 bootloader (should the need arise)?
Side question: is Odin the only way to update the bootloader? Can it be flashed through TWRP?
Click to expand...
Click to collapse
I'm running 4.3 JediMasterX2 with old bootloader and devil kernel and everything seems to be running fine. There was a very informative post made recently they gave a clean and simple explication of pros and cons to bootloader update. I'll try to locate and post a link but long story short, it's in your best interest not to update bootloader if you don't have to.
Edit:
http://forum.xda-developers.com/showthread.php?p=48817694
Bruce lee roy said:
I'm running 4.3 JediMasterX2 with old bootloader and devil kernel and everything seems to be running fine. There was a very informative post made recently they gave a clean and simple explication of pros and cons to bootloader update. I'll try to locate and post a link but long story short, it's in your best interest not to update bootloader if you don't have to.
Edit:
http://forum.xda-developers.com/showthread.php?p=7694
Click to expand...
Click to collapse
Invalid link.
This may help.
http://forum.xda-developers.com/showthread.php?p=48817694
Sent from my SGH-T889 using xda app-developers app
drdoombot said:
I'm considering upgrading to a 4.3 rom from 4.1.2 and I've learned that a stock image of 4.3 must be flashed first (thorugh Odin?) to update the bootloader to 4.3.
Is there any drawback to upgrading? Will I still be able to flash 4.1.2 roms using the 4.3 bootloader? Will I be able to downgrade to the 4.1.2 bootloader (should the need arise)?
Side question: is Odin the only way to update the bootloader? Can it be flashed through TWRP?
Click to expand...
Click to collapse
Please don't do the official update and get yourself locked down like many of us have. I have flashed many 4.3 roms and they worked fine. Got a new phone and did the official update and now I cannot send this device in for warranty because of the KNOX flash counter.
drdoombot said:
Invalid link.
Click to expand...
Click to collapse
Sorry idk what happen but it's fixed. Cipher also posted link a few post up.
Hi Guys,
Here is a breakdown of the facts:
I have a SGH-I747 (Canadian version)
I wanted to unlock it so I downgraded and installed 4.1.1 (I747MUMLL1)
After, I realized that the 4.1.1 is outdated and don't like the layout...etc.
Now, I want to go back to 4.2.1 or 4.3.
What are the steps to install 4.2.1 or 4.3 ?
Do I have to root the phone before installing anything?
Any help would be appreciated.
Thanks
either Odin to 4.3 or check system update in setting
sent from my mobile device
downgrade?
team_hob said:
Hi Guys,
Here is a breakdown of the facts:
I have a SGH-I747 (Canadian version)
I wanted to unlock it so I downgraded and installed 4.1.1 (I747MUMLL1)
After, I realized that the 4.1.1 is outdated and don't like the layout...etc.
Now, I want to go back to 4.2.1 or 4.3.
What are the steps to install 4.2.1 or 4.3 ?
Do I have to root the phone before installing anything?
Any help would be appreciated.
Thanks
Click to expand...
Click to collapse
How did you downgrade?
...i've been looking around a a way to unlock on 4.3 but most info is for 4.1.1 and 4.1.2, do you remember how you did it?
rx15901 said:
How did you downgrade?
...i've been looking around a a way to unlock on 4.3 but most info is for 4.1.1 and 4.1.2, do you remember how you did it?
Click to expand...
Click to collapse
You cannot downgrade the bootloader, only the ROM.
It has been theorized that downgrading the ROM to 4.1.1 and keeping the 4.3 bootloader would give you the necessary options to unlock the phone using the free method, but no one has posted the results of doing this.
I couldn't find a ROM matching MUMLL1 but many ROMs are located here: http://www.sammobile.com/firmwares/1/?model=SGH-I747M&pcode=BMC#firmware
SaHiLzZ said:
either Odin to 4.3 or check system update in setting
sent from my mobile device
Click to expand...
Click to collapse
Do you where I can download 4.3? Does it matter on the cellphone provider?
System update doesn't work...its say's system is up-to-date.
team_hob said:
Do you where I can download 4.3? Does it matter on the cellphone provider?
System update doesn't work...its say's system is up-to-date.
Click to expand...
Click to collapse
Look on samfirmware.com for stock ROMs for your carrier. The firmware must be flashed via desktop Odin.
audit13 said:
You cannot downgrade the bootloader, only the ROM.
It has been theorized that downgrading the ROM to 4.1.1 and keeping the 4.3 bootloader would give you the necessary options to unlock the phone using the free method, but no one has posted the results of doing this.
I couldn't find a ROM matching MUMLL1 but many ROMs are located here: http://www.sammobile.com/firmwares/1/?model=SGH-I747M&pcode=BMC#firmware
Click to expand...
Click to collapse
I read in one of these threads that flashing via Mobile Odin, rather than desktop Odin, will flash the ROM but not the bootloader. Can anyone confirm if it is possible to safely downgrade from 4.3 to 4.1.1 via this method?
audit13 said:
Look on samfirmware.com for stock ROMs for your carrier. The firmware must be flashed via desktop Odin.
Click to expand...
Click to collapse
I have downloaded lastest firmware for Telus from Sammobile.
Should I just use odin and install the new firmware? Do I need to do something to the ROM before I install the firmware? I'm a newbie to flashing so all the help would be help.
Thanks
team_hob said:
I have downloaded lastest firmware for Telus from Sammobile.
Should I just use odin and install the new firmware? Do I need to do something to the ROM before I install the firmware? I'm a newbie to flashing so all the help would be help.
Thanks
Click to expand...
Click to collapse
If you are using an i747m, you can use Odin to flash the firmware.
Hello everyone,
I have searched the site for some ways to unlock my device. I am running liquidsmooth 4.4.4 and as far as I know there is no way to unlock customs Roms running 4.3/4.4, unless you go back to the original stock rom and use either AT&T or third party site unlock code. So, I called AT&T and they provided me with the unlock code and they told me the same thing, the unlock code will not work until you go back to the original factory stock rom!
So, I have been searching here for the right 4.3 stock rom and I found out many posts and I got confused which to use. I would highly appropriate it if any one can help me and direct me to the right source/process for 4.3 stock rom steps and installation so I won't brick my phone.
Thanks in advance
GueSs_me said:
Hello everyone,
I have searched the site for some ways to unlock my device. I am running liquidsmooth 4.4.4 and as far as I know there is no way to unlock customs Roms running 4.3/4.4, unless you go back to the original stock rom and use either AT&T or third party site unlock code. So, I called AT&T and they provided me with the unlock code and they told me the same thing, the unlock code will not work until you go back to the original factory stock rom!
So, I have been searching here for the right 4.3 stock rom and I found out many posts and I got confused which to use. I would highly appropriate it if any one can help me and direct me to the right source/process for 4.3 stock rom steps and installation so I won't brick my phone.
Thanks in advance
Click to expand...
Click to collapse
If your bootloaders are on 4.4, you can't downgrade them (or you'll brick!).
You can use Terminal Emulator to know which one you're on:
Code:
getprop ro.bootloader
Once you know which one you have, you can go ahead and grab its stock version.
http://forum.xda-developers.com/showthread.php?t=1968625
i think this thread provides stock downloads.
good luck.
err on the side of kindness
BWolf56 said:
If your bootloaders are on 4.4, you can't downgrade them (or you'll brick!).
You can use Terminal Emulator to know which one you're on:
Code:
getprop ro.bootloader
Once you know which one you have, you can go ahead and grab its stock version.
Click to expand...
Click to collapse
Thanks for the reply, I checked the bootloader as you said and I got ( I747UCDLK3 ). So, I am guessing that I am still on 4.3 because the last bootloader update was through this process:
http://forum.xda-developers.com/showthread.php?t=2387423
I tried to flash the stock file update4.3.zip on that thread using TWRP but it did not work.
Any idea?
Thanks again
mrrocketdog said:
http://forum.xda-developers.com/showthread.php?t=1968625
i think this thread provides stock downloads.
good luck.
err on the side of kindness
Click to expand...
Click to collapse
Thanks for your kind reply. Is there any different to choose between the download options. I know it says the first one is the newest one, I am downloading
http://forum.xda-developers.com/showthread.php?t=2496425
So I hope it is the right one!?
I already have the stock rom 4.3 from
http://forum.xda-developers.com/showthread.php?t=2387423
But as I said on the previous reply not sure why I can't flash the update43.zip through the recovery?
Best,,,,
GueSs_me said:
Thanks for the reply, I checked the bootloader as you said and I got ( I747UCDLK3 ). So, I am guessing that I am still on 4.3 because the last bootloader update was through this process:
http://forum.xda-developers.com/showthread.php?t=2387423
I tried to flash the stock file update4.3.zip on that thread using TWRP but it did not work.
Any idea?
Thanks again
Click to expand...
Click to collapse
LK3 is 4.1.1. I'm guessing the 4.3 bootloaders update didn't work at all.
Now that you know you have LK3, just grab the stock firmware and flash it. (backup first)
thanks @BWolf56.
:GOOD:
err on the side of kindness
BWolf56 said:
LK3 is 4.1.1. I'm guessing the 4.3 bootloaders update didn't work at all.
Now that you know you have LK3, just grab the stock firmware and flash it. (backup first)
Click to expand...
Click to collapse
This is really strange. So, if I may ask, how my bootloader is still 4.1.1 and I am able to flash 4.3/4.4 roms? Also, if I install I747UCDLK3 can I go back to 4.3 custom roms without updating the bootloader!!! because that what I did last time I follwed the steps in below web site to be able to flash 4.3 rom,,,,, but apparently I am still on 4.1.1 bootloader!!
http://forum.xda-developers.com/showthread.php?t=2387423
4.3 roms could still be flashed on older firmware. 4.4 roms too as long as they are not touchwiz. If its a touchwiz 4.4.2 rom you must have at least 4.3 firmware though.
Hi i want to know if i can flash an original 4.3 firmware my bootloader is I747MVLUFNE6 can i go back or i will brick my phone if i tried?
No you cannot downgrade firmware. You can only flash the same or newer builds. Or you can flash older roms and kernels, but nothing else.
Hi, sorry this is probably a noob question but I've been reading through the forums and got confused how to update my rooted s4. Normally I would just install the custom rom with the update but it seems like this isnt the case right now.
I'm currently on 4.2.2, rooted, and have wicked as my rom. How would I update to 4.4.4? From what I understand there is a new modem and firmware... something to do with NH7? Can someone explain to me what NH7 does. Thanks for all your help!
NH7 is the newest firmware based on 4.4.4 and it is recommended if you plan of using 4.4.4 tw roms. To update it just download the NH7 firmware from general thread and flash it with Odin, after that you can use cf-auto root to root, or if you're just planning to flash a ROM then just flash recovery and then flash ROM.. If you care about tripping your Knox counter then just know that flashing recovery or rooting will trip it
babexdragon said:
Hi, sorry this is probably a noob question but I've been reading through the forums and got confused how to update my rooted s4. Normally I would just install the custom rom with the update but it seems like this isnt the case right now.
I'm currently on 4.2.2, rooted, and have wicked as my rom. How would I update to 4.4.4? From what I understand there is a new modem and firmware... something to do with NH7? Can someone explain to me what NH7 does. Thanks for all your help!
Click to expand...
Click to collapse
You mention that you want to update and that under normal circumstances you would simply flash the an updated custom ROM... yet you say you've read it isn't that simple, right?
You are correct, it isn't THAT simple, but it is ALMOST that simple. Being as that you are still on the old 4.2.2 pre-KNOX bootloader and all, you can flash and flash and flash all day long and a single use of Triangle Away is all you'd need to still be able to revert your device back to 100% stock, both firmware AND flash counters if you ever needed to for some reason. If you use Odin, Kies, or take an OTA update you will lose that ability. Anything you flash once you go through official channels to update will trip your KNOX counter... and that cannot be reset. The problems you've read about simply flashing an updated custom ROM is that you will have problems with data.
The data drops can be avoided by flashing the newest modem, which would be NH7. Understand though, that method only updates your GSM modem; your LTE modem would be unaffected. This would only be a problem though if you are having trouble receiving LTE where others with the same carrier can get it with no problem. If you aren't having any problems with LTE, then I would recommend to simply update your GSM modem and use the custom recovery of your choice (ClockWorkMod, Philz Touch, or TWRP) to flash any of the ROMs in the T-Mobile GS4 Android Development section.
To update your GSM modem, follow the instructions in this thread. That thread is for updating to the 4.4.2 NB4 modem, which that modem would actually be all you need; but if you wish to have the NH7 modem, just use the modem.bin ONLY file from this post instead of the modem package included in the tutorial thread. After that little bit of work, you can flash any Android version you want; from 4.2.2 all the way up to 4.4.4... AOSP, TouchWiz, or the Google Play Edition ROMs.
So from what I understand...
1. Update the modem not firmware
2. Flash ROM
So I don't need to re-root?
You are correct.
No need to re-root.