Database Users

How to update Bootloader

Hey,
I'm on AOSP for some time now.
I was just wondering if one can update bootloader only or does he have to update the whole firmware. Lets say I'm on 4.3 JB and would like bootloader 4.4,can i just simply flash bootloader only?
Do i have to use Odin or can i use cmd flash procedure as for nexus?
I'm asking because lollipop needs a updated 4.4 bootloader as far as i know..
Any help would be appreciated.
Sent from my SM-N9005 using XDA Free mobile app

ryanrazer said:
Hey,
I'm on AOSP for some time now.
I was just wondering if one can update bootloader only or does he have to update the whole firmware. Lets say I'm on 4.3 JB and would like bootloader 4.4,can i just simply flash bootloader only?
Do i have to use Odin or can i use cmd flash procedure as for nexus?
I'm asking because lollipop needs a updated 4.4 bootloader as far as i know..
Any help would be appreciated.
Sent from my SM-N9005 using XDA Free mobile app
Click to expand...
Click to collapse
Yes, if you manage to get a bootloader only file.
But do keep in mind, that currently 4.4 bootloader works only with 4.4 ROMs (and those custom CM12 ROMs that are made to work with it). You will not be able to revert to 4.3.

Thank you for response.
Sent from my SM-N9005 using XDA Free mobile app

Someguyfromhell said:
Yes, if you manage to get a bootloader only file.
But do keep in mind, that currently 4.4 bootloader works only with 4.4 ROMs (and those custom CM12 ROMs that are made to work with it). You will not be able to revert to 4.3.
Click to expand...
Click to collapse
But will the latest bootloader N9005XXUGBOA5_DevBase_alexndr an modem N9005XXUGNJ2_DevBase_alexndr work on stock rooted Kitkat, and will it give any improvements?

[Help] Galaxy S5 Active SM-G870 stuck on a stock recovery

How do I get out of it and install rom
Thank Yossi

Using Odin
Can you access Download mode?
If so, then install stock firmware on your phone using Odin.
Other solutions can be flashing a custom recovery via Odin too. I recommend flashing stock firmware for complete fix.

Darth.Vader said:
Can you access Download mode?
If so, then install stock firmware on your phone using Odin.
Other solutions can be flashing a custom recovery via Odin too. I recommend flashing stock firmware for complete fix.
Click to expand...
Click to collapse
thanks for your help
I was able to fix the problem according to this guide
http://forum.xda-developers.com/galaxy-s5/help/samsung-galaxy-s5-g870a-bootloop-fix-t3228086
Can you give me instructions how to install clean ROM without the addition AT&T
The phone is now in version 5 Lollipop no root
Thank you
Yossi

yossiv69 said:
thanks for your help
I was able to fix the problem according to this guide
http://forum.xda-developers.com/galaxy-s5/help/samsung-galaxy-s5-g870a-bootloop-fix-t3228086
Can you give me instructions how to install clean ROM without the addition AT&T
The phone is now in version 5 Lollipop no root
Thank you
Yossi
Click to expand...
Click to collapse
Can't root if you are on the official lollipop update, needed to be on KitKat rooted to be able tp, so that cuts your answer short as root would be needed for the rest.
Sent from my Tw5ted SM-G900A using Tapatalk

Ok so how would I roll back to 4.4.2 kit Kat? Is there a way to do that? My phone won't update to 5.1.1 or whatever and I can't root on 5.0 at this point I'm stuck. Can't find the necessary tar to or direction to do either at this point. Thanks for any help. I'm still searching for answers lol
S5 Active

shadavis08 said:
Ok so how would I roll back to 4.4.2 kit Kat? Is there a way to do that? My phone won't update to 5.1.1 or whatever and I can't root on 5.0 at this point I'm stuck. Can't find the necessary tar to or direction to do either at this point. Thanks for any help. I'm still searching for answers lol
S5 Active
Click to expand...
Click to collapse
You can't unless you're on rooted 5.0
Sent from my SAMSUNG-SM-G900A using Tapatalk

Flashed ne4 kernel and now s5 active only boots to recovery
Tried flashing full G870AUCU1ANE4 via Odin...fail fail fail.
Flashed just NE4 kernel and now stuck in recovery. Was running lollipop when this all started.
Anybody have any suggestions what to do next?

jimbo1103 said:
Tried flashing full G870AUCU1ANE4 via Odin...fail fail fail.
Flashed just NE4 kernel and now stuck in recovery. Was running lollipop when this all started.
Anybody have any suggestions what to do next?
Click to expand...
Click to collapse
Ne4=KitKat, need to flash lollipop firnware
Sent from my SAMSUNG-SM-G900A using Tapatalk

Rakuu said:
Ne4=KitKat, need to flash lollipop firnware
Sent from my SAMSUNG-SM-G900A using Tapatalk
Click to expand...
Click to collapse
Once that is done, how do I revert back to KitKat?

jimbo1103 said:
Once that is done, how do I revert back to KitKat?
Click to expand...
Click to collapse
Where do i find lollipop firmware for s5 active?

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/

can i install any custom rom on my gs4 ok2 it is rooted

I followed the keep root method for the ok2 on a forum here and worked perfectly now I want a custom rom but don't now how to tell if it will work for my phone

isthisok said:
I followed the keep root method for the ok2 on a forum here and worked perfectly now I want a custom rom but don't now how to tell if it will work for my phone
Click to expand...
Click to collapse
Can you specify the model number of your device?
__
v7
XDA Assist

v7 said:
Can you specify the model number of your device?
__
v7
XDA Assist
Click to expand...
Click to collapse
yes sorry i havent used the forum before a didnt know you replied my model is sgh i337att

isthisok said:
yes sorry i havent used the forum before a didnt know you replied my model is sgh i337att
Click to expand...
Click to collapse
under model number of my phone it says : Samsung SGH-I337. but I am gonna take a guess and maybe this is what you want lrx22c.i337ucugok2. if that isn't correct could you give me a hint in laymen terms I am a newbie but great at following directions

isthisok said:
yes sorry i havent used the forum before a didnt know you replied my model is sgh i337att
Click to expand...
Click to collapse
its an att

isthisok said:
its an att
Click to expand...
Click to collapse
well I you see in the picture I gave you the correct number so I went ahead and did screenshots so I will have everything you need without confusion and I mean that with all do respect

isthisok said:
well I you see in the picture I gave you the correct number so I went ahead and did screenshots so I will have everything you need without confusion and I mean that with all do respect
Click to expand...
Click to collapse
these are the ones I was sending but I did it wrong only 4 at a tim I tried 6 sorry about that

If your bootloader is locked, and I believe it is since the phone is probably running a stock rooted 5.01 ROM, you cannot install a custom recovery which means you cannot flash any custom ROM that is not based on a stock touchwiz ROM.

audit13 said:
If your bootloader is locked, and I believe it is since the phone is probably running a stock rooted 5.01 ROM, you cannot install a custom recovery which means you cannot flash any custom ROM that is not based on a stock touchwiz ROM.
Click to expand...
Click to collapse
Can we downgrade to a version before lollipop and flash custom roms ?

Nope, downgrading is not possible. You'll be limited to using safe strap to flash tw based Roms. Cm and aosp Roms are not possible.

No, you can't down grade to anything you could flash a custom recovery to. Look into safestrap.
Sent from my Nexus 9 using XDA-Developers mobile app

celldweller97 said:
Can we downgrade to a version before lollipop and flash custom roms ?
Click to expand...
Click to collapse
As in the guide "the keep root method for OK2" clearly stated that the lowest you can downgrade the ATTS4 is kitkat NB1.
Since you are on OK2 bootlaoder and want to install the custom rom I suggest you need to find the OK2 based TW custom rom.
Because the bootloader is locked, you can not install the custom recovery like TWRP. You are stuck with either safestrap or flashfire.
I recommend to use the flashfire since safestrap is too tricky to work with lollipop. With flashfire you can flash tw based custom rom in the lollipop.

navigation buttons don't work on kk roms after updating to MM bootloader

hello XDA members. why this happen with KK roms? should I downgrade the bootloader again to run KK roms? Hope not

abdellahboughrom said:
hello XDA members. why this happen with KK roms? should I downgrade the bootloader again to run KK roms? Hope not
Click to expand...
Click to collapse
yep you will have to change bootloader to atleast lollipop bootloader/modem for them to work i think i tried cm11 on phone and would not boot until i flashed lollipop modem/bootloader hope that helps