Database Develop

[DEV] Bootloaders

This is a development question that I am certain some of you might have an answer for. What we do know is that the bootloader on Chinese i9100g's is locked and will block you from flashing "SBL, MSO, Modem," everything else can be mixed and matched if from the same platform.
Now assuming we have a way to avoid the lock and replace the bootloader, is it possible to replace the Chinese bootloader with another from India or Malaysia? or is this also somehow locked in the chipset firmware? I doubt that Samsung would bother to alter the product at that level for one market.

lorinkundert said:
This is a development question that I am certain some of you might have an answer for. What we do know is that the bootloader on Chinese i9100g's is locked and will block you from flashing "SBL, MSO, Modem," everything else can be mixed and matched if from the same platform.
Now assuming we have a way to avoid the lock and replace the bootloader, is it possible to replace the Chinese bootloader with another from India or Malaysia? or is this also somehow locked in the chipset firmware? I doubt that Samsung would bother to alter the product at that level for one market.
Click to expand...
Click to collapse
Who knows...Samsung's crazy...better get full information before you do anything....
Sent from GT I9100g using xda premium
AOKP build 38
Modified CM9 kernel

We've been looking for a way to replace it for a long time now to no avail. If there was a way, a lot of people would be frantic to try out the leaked ICS from China when it first got posted.
Having a Chinese phone myself, I can deal with the bootloader, since everything else is basically changeable through some methods, whether it's through Mobile Odin, or CWM.

Jiangyi said:
We've been looking for a way to replace it for a long time now to no avail. If there was a way, a lot of people would be frantic to try out the leaked ICS from China when it first got posted.
Having a Chinese phone myself, I can deal with the bootloader, since everything else is basically changeable through some methods, whether it's through Mobile Odin, or CWM.
Click to expand...
Click to collapse
I've been stuck with the leaked bootloader in order to use ICS, it works fine but I know there is some kind of backdoor the Government has mandated to avoid a repeat of the so called Jasmine revolts, working at ZTE China has given me a little extra information.

i have the same wonder.
btw how to flash DXPL6 kernel? i failed using odin to pick a extracted zimage in PDA.
solved!!! When i use a tar file instead of the origin kernel. Thanks....

lanist said:
i have the same wonder.
btw how to flash DXPL6 kernel? i failed using odin to pick a extracted zimage in PDA.
Click to expand...
Click to collapse
Always use ktool if you are directly flashing zimage...
Sent from my GT-I9100G using xda premium

lanist said:
i have the same wonder.
btw how to flash DXPL6 kernel? i failed using odin to pick a extracted zimage in PDA.
Click to expand...
Click to collapse
If I use Odin, I tar the kernel and whatever other image files I want to use, the counter will go up but no triangle

lorinkundert said:
If I use Odin, I tar the kernel and whatever other image files I want to use, the counter will go up but no triangle
Click to expand...
Click to collapse
Never use odin to flash custom rom..use only.... when you want to flash stock rom.....
Sent from my GT-I9100G using xda premium

[Q] Will the locked bootloader prevent me from flashing T-Mobile Stock ROM?

I don't know if other people have asked this question, but I read a lot about locked bootloaders (and yes, I've been there with my own phone xD) and they talk about how it's not really possible (?) to flash custom ROMs with phones like that.
I have an unlocked SM-G900A and I'm on T-Mobile, but I really need the Wifi Calling.
Will the bootloader think it's a non-verified custom rom?
I don't want to send my phone to Samsung again...lol
Thanks!

You should be fine, i'm running a tmo rom currently, not sure if WiFi calling would work though.
Sent from my twi5ted SM-G900A using Tapatalk

Rakuu said:
You should be fine, i'm running a tmo rom currently, not sure if WiFi calling would work though.
Sent from my twi5ted SM-G900A using Tapatalk
Click to expand...
Click to collapse
Thanks!
Also, before I start flashing, if anyone knows about Sammobile firmwares- do they have modems inside the .md5?
I have it ready but I don't really...uh...want to flash the modem if it's there. LOL so confused...I saw another forum where it said the modem was already inside the sammobile firmware file, but some say it's fine so...I honestly don't know... xD

luckyluke8168 said:
Thanks!
Also, before I start flashing, if anyone knows about Sammobile firmwares- do they have modems inside the .md5?
I have it ready but I don't really...uh...want to flash the modem if it's there. LOL so confused...I saw another forum where it said the modem was already inside the sammobile firmware file, but some say it's fine so...I honestly don't know... xD
Click to expand...
Click to collapse
Oh i didnt know you meant using odin for a rom, no i would avoid that, as for just normal g900t roms from the tmo section, yes you can do that with flashfire/safestrap/multisystem, i dont know about odin though, pretty sure it wont work.
Sent from my twi5ted SM-G900A using Tapatalk

Rakuu said:
Oh i didnt know you meant using odin for a rom, no i would avoid that, as for just normal g900t roms from the tmo section, yes you can do that with flashfire/safestrap/multisystem, i dont know about odin though, pretty sure it wont work.
Sent from my twi5ted SM-G900A using Tapatalk
Click to expand...
Click to collapse
Okay then. Thank you so much for telling me ahead of time (phew!)

luckyluke8168 said:
I don't know if other people have asked this question, but I read a lot about locked bootloaders (and yes, I've been there with my own phone xD) and they talk about how it's not really possible (?) to flash custom ROMs with phones like that.
I have an unlocked SM-G900A and I'm on T-Mobile, but I really need the Wifi Calling.
Will the bootloader think it's a non-verified custom rom?
I don't want to send my phone to Samsung again...lol
Thanks!
Click to expand...
Click to collapse
You can test the following if you would like try to run the latest T-Mobile OB1_5.0 Firmware as a virtual system (you must start the following process from rooted OC4):
Part-1: Install MultiSystem
1. Download the latest Multisystem.apk and Multisystem.zip.
2. Follow the Instructions to install MultiSystem.
Part-2: Install T-Mobile_OB1 5.0 Virtual System
1. Download the system_t-mobile_ob1.img.rar, extract the .img and place it onto your device (use either internal or external sdcard).
2. Use ES File Explorer (with root access enabled) to copy the system_t-mobile_ob1.img to the following folder: MultiSystem/img/system
3. From the MultiSystem app enable "Virtual System," Press "Update Configuration," then select the system_t-mobile_ob1.img under "Primary System IMG."
4. Press "Update Configuration" once again and reboot.
5. Once the Green led appears during reboot Press "Volume-Up" for about 2 seconds.
Your device should boot into the T-Mobile 5.0 Stock, Rooted, ROM.

muniz_ri said:
You can test the following if you would like try to run the latest T-Mobile OB1_5.0 Firmware as a virtual system (you must start the following process from rooted OC4):
Click to expand...
Click to collapse
Does anyone know if there's a root for ATT Galaxy S5 on 5.0 (OC4) ?
I want to try that out but my phone came with 5.0 so...

luckyluke8168 said:
Does anyone know if there's a root for ATT Galaxy S5 on 5.0 (OC4) ?
I want to try that out but my phone came with 5.0 so...
Click to expand...
Click to collapse
No root yet. Root just achieved on the S6 so hopefully the same exploit can be used on the S5 at some point. We'll see....

Snapdragon Note4 Modem and Bootloader Collection

Lollipop / Marshmallow
N910F
N910G
N910T
N910T3
N910V
N910W8
​​​​Disclaimer:
Remember neither me or XDA is responsible for any harm that might occur to your device by flashing the files provided.
Firstly make sure you have the correct USB drivers:
Uninstall Samsung Kies before you install the USB drivers.
Samsung USB Drivers
Odin
Instructions:
Power off the device (Remove the battery and then insert it after waiting 10 seconds)
Hold volume down, Home Button and power on the device.
Press Volume up key to continue.
Plug the phone into your computer via USB.
Run Odin with administrative permissions.
Once the phone is detected by Odin, select the appropriate files in the appropriate fields. (I have put the appropriate section at the beginning of the file name).

Reserved 1
12

Reserved 2
123

This is great, thanks!
Sent from my SM-N910T using Tapatalk

does anything need to be done about the csc? I'm looking to flash the W8 (can) version and there's a bunch of different carriers for the same baseband

andy55 said:
does anything need to be done about the csc? I'm looking to flash the W8 (can) version and there's a bunch of different carriers for the same baseband
Click to expand...
Click to collapse
This will retain your current CSC, the files I have provided does not contain the CSC files.

awesome stuff and thank you for all the hard work.
Question: if I am on kitkat 4.4.4 it would not be wise to install these lollipop 5+ modems/ bootloaders correct?
I purchased a note 4 but the imei is null and baseband unknown. currently looking for some solutions and i found my way here...
any suggestions would be nice also haha

ryan wigglesworth said:
awesome stuff and thank you for all the hard work.
Question: if I am on kitkat 4.4.4 it would not be wise to install these lollipop 5+ modems/ bootloaders correct?
I purchased a note 4 but the imei is null and baseband unknown. currently looking for some solutions and i found my way here...
any suggestions would be nice also haha
Click to expand...
Click to collapse
If you are on Stock Touchwiz 4.4.4 you will need to flash a 5.1.1 ROM in order to use the newer modems and bootloaders. IMEI number can be lost if something happens to the EFS partition. You could try to flash a stock firmware for your device model and your region; a factory reset may also be helpful, though my guess is that there isn't much that can be done unless you have a back up of the EFS partition which you can restore.

Battlehero said:
If you are on Stock Touchwiz 4.4.4 you will need to flash a 5.1.1 ROM in order to use the newer modems and bootloaders. IMEI number can be lost if something happens to the EFS partition. You could try to flash a stock firmware for your device model and your region; a factory reset may also be helpful, though my guess is that there isn't much that can be done unless you have a back up of the EFS partition which you can restore.
Click to expand...
Click to collapse
appreciate the very fast reply. thank you.
I am hesitant to upgrade to 5 as i am not sure if i can return to 4 if need be or if it may be easier to fix this mess in 4 perhaps.
I wonder if its possible to use some1 else backup and then change the imei parameters in the efs folders. at least then all i have to worry about is getting an imei changed back to my own. i doubt its that simple tho of course. :s its been a long day.

Im still unrooted (shame)... if i flash this stock modems with Odin, does that gonna trigger my Knox?

theresident said:
Im still unrooted (shame)... if i flash this stock modems with Odin, does that gonna trigger my Knox?
Click to expand...
Click to collapse
If you haven't triggered your KNOX counter then you will have to flash an entire firmware because the modems and bootloaders require the ROM to be of the same firmware.

Hi @Battlehero
most current modem and bootloader for CM13 pls ?

After flashing these, I lost voice roaming however roaming data is available. My carrier label is as No Service. All is normal when not roaming though. Any ideas?
I'm on a N910T (SIM Unlocked T-Mobile).
Sent from my SM-N910T using Tapatalk

aydinbahadir88 said:
Hi @Battlehero
most current modem and bootloader for CM13 pls ?
Click to expand...
Click to collapse
CM13
will work with almost any bootloader and modem configuration, just flash any new 5.1.1
Rayan said:
After flashing these, I lost voice roaming however roaming data is available. My carrier label is as No Service. All is normal when not roaming though. Any ideas?
I'm on a N910T (SIM Unlocked T-Mobile).
Sent from my SM-N910T using Tapatalk
Click to expand...
Click to collapse
This may be dependent on what ROM you are currently running. The files I provide are unmodified as I have simply extracted them from the Odin flashable firmware.

Battlehero said:
CM13
will work with almost any bootloader and modem configuration, just flash any new 5.1.1
This may be dependent on what ROM you are currently running. The files I provide are unmodified as I have simply extracted them from the Odin flashable firmware.
Click to expand...
Click to collapse
It does this on any 5.1.1 rom I throw at it.
Even after restoring a 4.4.4 rom TWRP backup.
Thanks anyway.

I have COI3 bootloader on 5.1.1.. But can't seem to connect to mobile data. Please help

What are the latest versions 910F?

i have now the coj3 with the kyubi sdx rom
and i have at start up the seandroid thing
the coi3 will fix this? or not?

greatgrandking said:
I have COI3 bootloader on 5.1.1.. But can't seem to connect to mobile data. Please help
Click to expand...
Click to collapse
Have you tried to flash the appropriate firmware for your device?
ntemis021 said:
i have now the coj3 with the kyubi sdx rom
and i have at start up the seandroid thing
the coi3 will fix this? or not?
Click to expand...
Click to collapse
That's sign is there because of the modified kernel. It's normal.

Battlehero said:
That's sign is there because of the modified kernel. It's normal.
Click to expand...
Click to collapse
if i change to tha latest will i get something plus or better?
or just stay as is.

G900AUCS4DQC1 ** FULL ODIN UPDATE ** v6.0.1

Hello everyone! I'm back and have the latest G900AUCS4DQC1 full Odin update to share with you all. With this, you may update from ANY version you currently have. Simply flash all 4 files after you extract using Odin and you will be on the latest and newest update.
G900AUCS4DQC1 (6.0.1) - https://www.androidfilehost.com/?fid=745425885120723808
If for any reason you wish to downgrade, you can safely flash any of the following full Odin firmware's without any issue. If phone hangs after flashing on startup, boot into recovery and perform factory wipe/reset and it will boot up fine after that.
G900AUCU4DQB1 (6.0.1)
G900AUCU4DQA1 (6.0.1)
G900AUCS4DPH4 (6.0.1) - https://www.androidfilehost.com/?fid=312968873555011029
G900AUCS4CPA6 (5.1.1) - https://www.androidfilehost.com/?fid=24723757092307204
G900AUCU4COI5 (5.1.1) - https://www.androidfilehost.com/?fid=24438995911970945
G900AUCU4BOF3 (5.0) - https://www.androidfilehost.com/?fid=529152257862696776

Thank you for this, much appreciated. Will come in handy...

Thanks, everything works fine ?

Tnx, i'll check and reply.

odin secure check fail aboot !!!!! what to doo ??

Last night i tried downgrading to OF3 from QC1 to see if my phone would be bricked and i wanted to see if their is a performance difference going from 5.0 to 6.01 vs 5.1 to 6.01. I am happy to say that my phone downgraded successfully and upgraded succesfully.... I will see the difference over the coming wks ...

Bundle of tnx ... working fine.

Do I need to backup my files before I flash the QC1?
Thank you!!

blackhatchl said:
Do I need to backup my files before I flash the QC1?
Thank you!!
Click to expand...
Click to collapse
Yes you should, ODIN will perform a full wipe and flash of the device.
Also QD1 is the most recent firmware and is located here:
https://forum.xda-developers.com/att-galaxy-s5/general/g900aucs4dqd1-odin-update-v6-0-1-t3603897

Excellent, thank you very much...I think I'll try the QD1.

Hello. Can this be used on the 870A?

Shoosh said:
Hello. Can this be used on the 870A?
Click to expand...
Click to collapse
No, it can't.

plz upload links for 4.2 and 4.4 also....

File Extraction Problem
I cannot extract AP file! I downloaded it twice in case of file corruption! The other 3 files extract properly.
I fixed it. No need for reply! Thank you!

will it work with AT&T Galaxy S5 Active SM-G870A?
Thanks!

toutanje said:
Hello everyone! I'm back and have the latest G900AUCS4DQC1 full Odin update to share with you all. With this, you may update from ANY version you currently have. Simply flash all 4 files after you extract using Odin and you will be on the latest and newest update.
G900AUCS4DQC1 (6.0.1) - https://www.androidfilehost.com/?fid=745425885120723808
If for any reason you wish to downgrade, you can safely flash any of the following full Odin firmware's without any issue. If phone hangs after flashing on startup, boot into recovery and perform factory wipe/reset and it will boot up fine after that.
G900AUCU4DQB1 (6.0.1)
G900AUCU4DQA1 (6.0.1)
G900AUCS4DPH4 (6.0.1) - https://www.androidfilehost.com/?fid=312968873555011029
G900AUCS4CPA6 (5.1.1) - https://www.androidfilehost.com/?fid=24723757092307204
G900AUCU4COI5 (5.1.1) - https://www.androidfilehost.com/?fid=24438995911970945
G900AUCU4BOF3 (5.0) - https://www.androidfilehost.com/?fid=529152257862696776
Click to expand...
Click to collapse
Mine reads PH3 and it's on 6.0.1 and is international version att branded and suppose to be unlocked. Will this update lock it? Thx
Sent from my SAMSUNG-SM-G900A using Tapatalk

I have same exact question will it lock my phone to att. I'm currently on metro pcs. and would prefer not to flash something that will lock it back to at&t. Thanks!!!
Sent from my SAMSUNG-SM-G900A using Tapatalk

Why do you need to flash all 4 files? Can't you just flash DQC1? Also, it's probably safer to just upgrade using the smart switch program.
---------- Post added at 04:06 AM ---------- Previous post was at 04:03 AM ----------
mavsdad1 said:
I have same exact question will it lock my phone to att. I'm currently on metro pcs. and would prefer not to flash something that will lock it back to at&t. Thanks!!!
Sent from my SAMSUNG-SM-G900A using Tapatalk
Click to expand...
Click to collapse
No, it will not lock your phone again. Also, I recommend using SmartSwitch from Samsung to upgrade. Just install it on Windows and select the recover option, follow the wizard, put your phone in download mode, and wait for it to finish.

stock
Please is it an official rom and hope it won't crash my phone

[J700T1] [MetroPCS] [Stock Rom] J700T1UVU3AQC3

THIS IS FOR SAMSUNG GALAXY J7 METRO PCS VERSION. DO NOT FLASH ON OTHER VARIANTS.​
If you have messed up your system while trying to root and need J700T1UVU3AQC3 firmware to recover, or if you just need to upgrade to the latest firmware, here is the official unmodified Rom:
Download link:
https://mega.nz/#!ltcgwYLZ!R0n3FyaDUCtY8yiMrppFpbxNaSHnjiSUZSMQiU_o-kk
1- The firmware is on Mega servers. Please use a PC to download. If you have to use your mobile device to download, use the Mega app or set your browser to "desktop".
2- The firmware files are zipped. They should be unzipped and flashed via Odin.
3- This version upgrades the bootloader version to 3 and therefore downgrading to previous versions becomes impossible. So if you are happy with your current firmware and you think you may change your mind after the upgrade, stay away from this.
3- Rooting this firmware is possible through flashing TWRP via Odin and then superSU via TWRP. As I am sure you are well aware, that process will trip your Knox flag and renders your warranty void.
4- As usual, I share this with you AS IS and I have no responsibility if it breaks your phone. USE IT AT YOUR OWN RISK.

twrp for j7
which version of twrp works

Drsmit3 said:
which version of twrp works
Click to expand...
Click to collapse
This is not for twrp. Please read the OP:
Quote:
2- The firmware files are zipped. They should be unzipped and flashed via Odin.

3- This version upgrades the bootloader version to 3 and therefore downgrading to previous versions becomes impossible.
I was having network problems..calls kept disconnecting and phone would freeze. I restored my twrp backup with no issues.

need root for this j700t or t1 qc3 , please help tnx

mr64fixit said:
need root for this j700t or t1 qc3 , please help tnx
Click to expand...
Click to collapse
Just download SuperSU, newest 2.82. flash via recovery, there u are rooted.

Are the TMo and Metro devices interchangeable yet? In other words a Tmo sim in a Metropcs phone and vice versa?

TabascoTX said:
Are the TMo and Metro devices interchangeable yet? In other words a Tmo sim in a Metropcs phone and vice versa?
Click to expand...
Click to collapse
Think u have to sim unlock it first.
---------- Post added at 05:14 PM ---------- Previous post was at 05:12 PM ----------
Don't flash this firmware on a t mobile phone though.it will kill your modem and efs

Ok, not to sound like a noob,(I don't deal with Samsung's usually). What are ef's again?

TabascoTX said:
Ok, not to sound like a noob,(I don't deal with Samsung's usually). What are ef's again?
Click to expand...
Click to collapse
It's your encrypting file system.its where your imei is stored and other super important stuff and unique to your specific phone's serial number alone. And tethered to your carriers signal

fullofhell said:
It's your encrypting file system.its where your imei is stored and other super important stuff and unique to your specific phone's serial number alone. And tethered to your carriers signal
Click to expand...
Click to collapse
The EFS stuff really scares me when it comes to flashing. With that said. Where can i download the latest rom for metropcs. Sammobile only appears to have T-Mobile from the last time i checked. Does not hurt to have it at hand just in case.
Sent from my SM-J700T1 using Tapatalk

DroidJP said:
The EFS stuff really scares me when it comes to flashing. With that said. Where can i download the latest rom for metropcs. Sammobile only appears to have T-Mobile from the last time i checked. Does not hurt to have it at hand just in case.
Click to expand...
Click to collapse
Download updato app on play store. U can find all firmwares..or if u have any old firmwares laying around flash it and then take an OTA update then fomat and make a backup of it

fullofhell said:
Download updato app on play store. U can find all firmwares..or if u have any old firmwares laying around flash it and then take an OTA update then fomat and make a backup of it
Click to expand...
Click to collapse
No firmware at hand but updato, wow it identified my phone and found my firmware in matter of seconds. And to be sure. TMK is Metro correct?
Sent from my SM-J700T1 using Tapatalk

DroidJP said:
No firmware at hand but updato, wow it identified my phone and found my firmware in matter of seconds. And to be sure. TMK is Metro correct?
Click to expand...
Click to collapse
I'm not sure on that man look up some other firmwares for metro just to kinda compare..I don't want to steer u wrong. But updato saved me so much stress and time.

Yup, it's the correct one lol.
Sent from my SM-J700T1 using Tapatalk

Hey guys. Are any of you experiencing random reboots on the latest firmware? My phone randomly reboots for no reason. It has done this several times and the 2 times i can remember was 1. Phone rebooted when i was connecting to wifi. 2. It also did a reboot while in a middle of a game. What gives?
Sent from my SM-J700T1 using Tapatalk

The metro qc3 works nice in the T-Mobile and does not harm it any way, I did mine , no problem
Rooting is a problem with this security 3 since no TWRP is working with this version yet. But there is a eng root boot.img out which does the job, they charge 50 USD for this file.

mr64fixit said:
The metro qc3 works nice in the T-Mobile and does not harm it any way, I did mine , no problem
Rooting is a problem with this security 3 since no TWRP is working with this version yet. But there is a eng root boot.img out which does the job, they charge 50 USD for this file.
Click to expand...
Click to collapse
I have t mobile.i flashed this firmware once with flash fire, and then once with odin.lost my efs both times. I had someone send me the t mobile one and it was fine, I flashed the same twrp and it was like normal. I don't know if someone uploaded a different version of twrp or what, but the ones that have been on xda for the past 8 months do the job fine. I switch between the twrp for the j7, then the j700T specific twrp. I don't run stock, but all the roms I run with this twrp and all 3 kernels I use in development I also root through these recoveries.
@ Droid, what ROM are you running?

My Tmobile j700t qc3 had no issues when using j700t1 qc3 all was good. But twrp not working with qc3. Maybe yours was different firmware. But looking at other Samsung Tmobile and Metro pcs I never had an issue cross flashing them. Maybe you used not compatible firmware when you Lost efs , usually that happens when using lower bit or wrong modem file.
Sent from my SM-N930T using Tapatalk

mr_one said:
My Tmobile j700t qc3 had no issues when using j700t1 qc3 all was good. But twrp not working with qc3. Maybe yours was different firmware. But looking at other Samsung Tmobile and Metro pcs I never had an issue cross flashing them. Maybe you used not compatible firmware when you Lost efs , usually that happens when using lower bit or wrong modem file.
Click to expand...
Click to collapse
I used this very posts files...it's weird cuz the t mobile file is larger by a bit.maybe it is all weir