Can I iflash bootloader after rom has been installed - Galaxy S6 Edge Q&A, Help & Troubleshooting

Can I flash bootloader after rom has been installed?

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[Q] Not booting after re-unlocking bootloader

Hello.
I was in a custom rom and it was 4.04 ICM (I don't remember which one) and I already had an unlocked bootloader (which I couldn't remember) and I tried to re-unlock it
Now on my phone the Sony Ericsson logo re-appeared and it won't boot (it was Sony with my custom rom)
I used this method for unlocking bootloader
http://forum.xda-developers.com/showthread.php?t=2070325
I have this CWM
http://forum.xda-developers.com/showthread.php?t=1364509 (X-Parts)
Now what should I do?
Should I flash stock firmware?
Should I flash another custom?
MariosFFX said:
Hello.
I was in a custom rom and it was 4.04 ICM (I don't remember which one) and I already had an unlocked bootloader (which I couldn't remember) and I tried to re-unlock it
Now on my phone the Sony Ericsson logo re-appeared and it won't boot (it was Sony with my custom rom)
I used this method for unlocking bootloader
http://forum.xda-developers.com/showthread.php?t=2070325
I have this CWM
http://forum.xda-developers.com/showthread.php?t=1364509 (X-Parts)
Now what should I do?
Should I flash stock firmware?
Should I flash another custom?
Click to expand...
Click to collapse
You relocked bootloader, right?
Or did you unlock it again?!
Anyways, if you did a relock, you must flash a stock ftf and/or a ROM for a locked bootloader.
Because, your custom kernel based ROM won't run on a locked bootloader.
Sent from my MT11i using xda premium

Officially unlocked Bootloader successfully

Guys what is the difference between Twrp official and Twrp coffance !!
2) now I am on v7.2.5.0 so should I flash modified boot image to flash Twrp !!
Where I can get those image
im now official unlock bootloader. so which one twrp i need use? even i official bootloader im still need patching universal boot img?

Custom recovery issues

Hello
I recently bought a new device (lollipop version) and I've rooted it successfully so I decided to flash a custom recovery because I want to back up my OS before I start flashing xposed framework.
So I searched the net for a custom recovery for my device (Infinix hot 3 x554) and I found one, then I flashed the custom recovery using mobileuncle root and I reboot into recovery and nothing changed my stock recovery was still there, then after booting my device I flashed the custom recovery again using flashify and I reboot into recovery my phone just booted normally instead if taking me to recovery mode, now my stock recovery isn't there anymore, please I need assistant on how to fix this.
My device: Infinix Hot 3 x554
Version: 5.1
Kernel Version: 3.10.72+
Build Number: x554-W90918-A2-L-20160607
I used kingroot to root the device.
Thank you
It seems your recovery partition restores itself or there are specific scripts in your boot.img which restores stock recovery when detects modified recovery. You must install it via fastboot.
Obtain fastboot and run this command (You can have it with Android SDK or you can find it in Google too.).
Code:
fastboot flash recovery *filename*.img
But you have to be sure you have proper drivers for your device.
Okay, but I did some little research about how to flash recovery and I saw something about unlocking bootloader, so could it be because I haven't unlocked my bootloader that's why it didn't work?
Spadex said:
Okay, but I did some little research about how to flash recovery and I saw something about unlocking bootloader, so could it be because I haven't unlocked my bootloader that's why it didn't work?
Click to expand...
Click to collapse
Yes. You need to unlock bootloader before flashing custom recovery. Locked bootloader prevents modify stock partition.
Ashwinrg said:
Yes. You need to unlock bootloader before flashing custom recovery. Locked bootloader prevents modify stock partition.
Click to expand...
Click to collapse
So after I unlock the bootloader, should I use flashify to flash the custom recovery or I should just use PC to flash it
Spadex said:
So after I unlock the bootloader, should I use flashify to flash the custom recovery or I should just use PC to flash it
Click to expand...
Click to collapse
Use fastboot command to flash recovery.img
sachin n said:
Use fastboot command to flash recovery.img
Click to expand...
Click to collapse
Okay thanks for your time.

relocked bootloader vs flashing rom

I flashed MIUI global stable rom on my rn4 snapdragon using twrp and bootloader was relocked. it is normal? It is safe to flash any rom with locked bl using twrp? can i unlock bl with mi unlock without xiaomi permission if unlocked officially first time?
system twrp and fastboot works normally and now i have custom rom restored from nandroid backup
Are you sure your bootloader got relocked?? Please check it through fastboot oem device-info command.
popek069 said:
I flashed MIUI global stable rom on my rn4 snapdragon using twrp and bootloader was relocked. it is normal? It is safe to flash any rom with locked bl using twrp? can i unlock bl with mi unlock without xiaomi permission if unlocked officially first time?
system twrp and fastboot works normally and now i have custom rom restored from nandroid backup
Click to expand...
Click to collapse
what do you mean about bootloader getting re locked? global builds only remove the custom recovery and dont lock the bootloader i guess.

recovery

is it possible to boot in stock recovery with locked bootloader??
i have unlock for trying some custom rom... but now i have decided locked the bootloader while flashing with miflash tool and i can boot into stock recovery. Is it normal?
poran123 said:
is it possible to boot in stock recovery with locked bootloader??
i have unlock for trying some custom rom... but now i have decided locked the bootloader while flashing with miflash tool and i can boot into stock recovery. Is it normal?
Click to expand...
Click to collapse
Yes. Locking will install stock recovery

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