Tester needed for F41/m21s with unlocked bl - Samsung Galaxy F41 Questions & Answers

Need a test for recovery, requirements are just to have an unlocked bootloader and be able to recovery from scenarios like stuck on splash.

Yillié said:
Need a test for recovery, requirements are just to have an unlocked bootloader and be able to recovery from scenarios like stuck on splash.
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I used M21 TWRP and it booted to TWRP but no roms so can't test

Tanish helped out with testing so orangefox is now official. Will make an xda thread when I get time.

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[Q] What ROMs can I flash on locked bootloader?

Evening XDA,
I have recently got this phone but unfortunately it has a locked bootloader.
Are there any ROMs I can install on locked bootloader? E.g. stock based.
How can I tell if a ROM is safe to flash?
I'm pretty sure that you can only flash ROMS through a custom recovery (CWM, TWRP) and to be able to get in your recovery you need boot loader unlocked. Unlocking it and getting a custom recovery isn't hard though and it comes with bonuses like making nandroids?. And regarding the safety of ROMs I recommend downloading from places that look official. Just Google what ROMs there are for your phone and choose what sounds best (cyanogenmod is pretty good?)
Sent from my HTC One_M8 using XDA Free mobile app
ILIVE4HEAD said:
I'm pretty sure that you can only flash ROMS through a custom recovery (CWM, TWRP) and to be able to get in your recovery you need boot loader unlocked. Unlocking it and getting a custom recovery isn't hard though and it comes with bonuses like making nandroids?. And regarding the safety of ROMs I recommend downloading from places that look official. Just Google what ROMs there are for your phone and choose what sounds best (cyanogenmod is pretty good?)
Sent from my HTC One_M8 using XDA Free mobile app
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That's wrong, you don't need to unlock bootloader in order to install a custom recovery. Rooting the phone is enough. Then the correct install file from Nut's database and you have more than one recovery.
"Z1C-lockeddualrecovery2.7.XXX-BETA.installer.zip (XX.XXMB)" would be your choice after rooting. More information HERE.
einfachgaer said:
That's wrong, you don't need to unlock bootloader in order to install a custom recovery. Rooting the phone is enough. Then the correct install file from Nut's database and you have more than one recovery.
"Z1C-lockeddualrecovery2.7.XXX-BETA.installer.zip (XX.XXMB)" would be your choice after rooting. More information HERE.
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This is correct. I have already rooted and installed recovery on my locked bootloader device. :good:
I cannot unlock my bootloader, unfortunately I get "Bootloader unlock allowed: no"
superste2201 said:
This is correct. I have already rooted and installed recovery on my locked bootloader device. :good:
I cannot unlock my bootloader, unfortunately I get "Bootloader unlock allowed: no"
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To answer you previous question. You can flash any ROM that uses the stock kernel to run. Most of them are labeled stock based or based on stock firmware XYZ.
And as long as you have a recovery and made a backup beforehand, almost every ROM is safe to flash.
Sent from my D5503 using XDA Free mobile app
einfachgaer said:
To answer you previous question. You can flash any ROM that uses the stock kernel to run. Most of them are labeled stock based or based on stock firmware XYZ.
And as long as you have a recovery and made a backup beforehand, almost every ROM is safe to flash.
Sent from my D5503 using XDA Free mobile app
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Can you set CWM to warn when a ROM tries to write boot image? Cause that would be ideal for people with locked bootloaders.
You can just check if there's a boot.img in the zip file I guess. Anyway, it'll simply fail and you have to restore an official rom, no big deal. There aren't many stock based roms anyway.
Does candyrom or the amg rom work with a locked bootloader?
325i. said:
Does candyrom or the amg rom work with a locked bootloader?
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AMG yes.
Instructions are on ROM page.

[Q] CWM recovery for Xperia M locked bootloader ?

Hi, guys thanks to xda I was able to root my phone now I can't seem find a working CWM recovery file to flash it in my device. I've not unlocked my bootloader though so please help me flash cwm recovery on my c1904 15.4.A.1.9 firmware locked bootloader thanks in advance.
Sorry, but it's impossible to install cwm if your phones bootloader is locked.
metalftw7 said:
Sorry, but it's impossible to install cwm if your phones bootloader is locked.
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i did flash a cwm recovery for my device using flashify.But it just simply reboots it doesn't go to recovery mod. & please do something.
On Stock 4.1 i heared about a CWM for locked bl, but never tried it. But on 4.3 it isnt working. Look for the thread in general section.
But a "normal" CWM on locked bl isnt possible, as the bootloader only loads a kernel from Sony, and to boot into cwm on our device we need to detect an event to extract the cwm ramdisk instead of the nornal ramdisk, which is only possible with a modified kernel, which requires an unlocked bl to get loaded.

Can't unlock bootloader after flash LineageOS

i have zenfone 2 with lastest mm .
in marshmallow if you boot with unlocked bootloader the phone stuck on asus logo, so what i did was unlock the bootloader , install LineageOS , relock bootloader, boot LineageOS. The problem is when i try to unlock again the bootloader to acces the recovery i cant , the phone show "Unlock failed.... reboot in 5 second". This problem didn't happen before
please help , how do i fix that
DarkshadoW99 said:
i have zenfone 2 with lastest mm .
in marshmallow if you boot with unlocked bootloader the phone stuck on asus logo, so what i did was unlock the bootloader , install LineageOS , relock bootloader, boot LineageOS. The problem is when i try to unlock again the bootloader to acces the recovery i cant , the phone show "Unlock failed.... reboot in 5 second". This problem didn't happen before
please help , how do i fix that
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How are you relocking the bootloader? . As far as I know that is not possible.
Sent from my ASUS_Z00A using Tapatalk
kenbo111 said:
How are you relocking the bootloader? . As far as I know that is not possible.
Sent from my ASUS_Z00A using Tapatalk
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re locking bootloader is possible. flash raw firmware. or flashing boot, recovery, fastboot and ifwi images.
@DarkshadoW99 very first of all you started new thread without searching around. and if you started a new thread your post is too confusing or lacking the context of your post. unable to understand what you actually want.
very first of all while unlocking bootloader with unofficial method. you may get error " failed too many links" but even though bootloader is unlocked pretty well.. ( mention which tool you are using to unlock bootloader)
second thing is you stated that you are trying to unlock bootloader to access recovery. what does it actually mean? do you want to flash custom recovery or your are unable to enter recovery mode?
"in marshmallow if you boot with unlocked bootloader the phone stuck on asus logo" what does this line means? are you stuck at asus logo? as far as i know you can boot in MM with unlocked bootloader too. unable to understand what you wanted to say.
Go back to Lollipop for bootloader unlock
DarkshadoW99 said:
i have zenfone 2 with lastest mm .
in marshmallow if you boot with unlocked bootloader the phone stuck on asus logo, so what i did was unlock the bootloader , install LineageOS , relock bootloader, boot LineageOS. The problem is when i try to unlock again the bootloader to acces the recovery i cant , the phone show "Unlock failed.... reboot in 5 second". This problem didn't happen before
please help , how do i fix that
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Since there isn't any OFFICIAL unlocker for Zenfone 2 Marshamallow, your best bet is to go back to Lollipop abd having an unlocked bootloader but again, it'll be without Marshmallow:
Download official firmware latest release or whatever you had BEFORE installing LineageOS. Rename the the file you just downloaded to:
MOFD_SDUPDATE.zip
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and put it on an SD-Card, put the sd card in your phone, boot into recovery (by booting to fastboot and selecting recovery) and the restore should start automatically.
Now at this point you'd be back to stock marshmallow and you can downgrade back to Lollipop ( V52.20.40.197--be mindful the link is for the JP SKU and you need to download the right SKU version for your phone in case you have WW --didnt see you specify or not, so maybe you want to check you downloaded the right Lineage OS as well as maybe thas why its freezing ) to use Asus' Unlocker.apk [You can find instructions on official Asus website under support]
nucleare said:
Since there isn't any OFFICIAL unlocker for Zenfone 2 Marshamallow, your best bet is to go back to Lollipop abd having an unlocked bootloader but again, it'll be without Marshmallow:
Download official firmware latest release or whatever you had BEFORE installing LineageOS. Rename the the file you just downloaded to:
and put it on an SD-Card, put the sd card in your phone, boot into recovery (by booting to fastboot and selecting recovery) and the restore should start automatically.
Now at this point you'd be back to stock marshmallow and you can downgrade back to Lollipop ( V52.20.40.197--be mindful the link is for the JP SKU and you need to download the right SKU version for your phone in case you have WW --didnt see you specify or not, so maybe you want to check you downloaded the right Lineage OS as well as maybe thas why its freezing ) to use Asus' Unlocker.apk [You can find instructions on official Asus website under support]
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If the last thing he installed was LinOS then he has twrp for recovery. I don't think that method will work.
Sent from my ASUS_Z00A using Tapatalk
kenbo111 said:
If the last thing he installed was LinOS then he has twrp for recovery. I don't think that method will work.
Sent from my ASUS_Z00A using Tapatalk
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That's a very valid point, but since his post is vague and quite confusing, unless Lineage has a function within the ROM to "relock the bootloader" I would've assumed he "relocked the bootloader" by installing/fastboot flashing some official boot.img and since he cant get into recovery and his bootloader is locked, I had imagined he'd be back to stock fastboot.
but meh, my guess is as good as any. Unless the OP adds some clarity, we can at least say we tried, amirite?
nucleare said:
That's a very valid point, but since his post is vague and quite confusing, unless Lineage has a function within the ROM to "relock the bootloader" I would've assumed he "relocked the bootloader" by installing/fastboot flashing some official boot.img and since he cant get into recovery and his bootloader is locked, I had imagined he'd be back to stock fastboot.
but meh, my guess is as good as any. Unless the OP adds some clarity, we can at least say we tried, amirite?
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absolutely
---------- Post added at 11:01 PM ---------- Previous post was at 11:00 PM ----------
kenbo111 said:
If the last thing he installed was LinOS then he has twrp for recovery. I don't think that method will work.
Sent from my ASUS_Z00A using Tapatalk
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i understand that.. but i was just referring that relocking bootloader is possible

Stuck in boot after unlocking bootloader and flashing twrp

Hey, I unlocked my bootloader using fastboot like I've done 100 times.
After that I flashed the newest TWRP for the 5x and then it wouldn't decrypt my data.
I figured I'd boot into android but it's just stuck in the boot animation, what can I do?
Edit:
I can't keep the bootloader unlocked, as soon as I reboot anywhere, it's locked again.
Shebee said:
Hey, I unlocked my bootloader using fastboot like I've done 100 times.
After that I flashed the newest TWRP for the 5x and then it wouldn't decrypt my data.
I figured I'd boot into android but it's just stuck in the boot animation, what can I do?
Edit:
I can't keep the bootloader unlocked, as soon as I reboot anywhere, it's locked again.
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Can you boot into the bootloader? if you can try reflashing it back stock also when you flashed the latest TWRP, did you flash via fastboot or did you flash it in twrp?
dominoeflux said:
Can you boot into the bootloader? if you can try reflashing it back stock also when you flashed the latest TWRP, did you flash via fastboot or did you flash it in twrp?
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Yes, I can boot, the issue seems to be that the bootloader won't stay unlocked.
As soon asni restart it's locked again. I think that's why twrp can't encrypt my partition. And that somehow messes up the Android installation.
Any ideas why the bootloader won't stay unlocked?
Shebee said:
Yes, I can boot, the issue seems to be that the bootloader won't stay unlocked.
As soon asni restart it's locked again. I think that's why twrp can't encrypt my partition. And that somehow messes up the Android installation.
Any ideas why the bootloader won't stay unlocked?
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You have a phone with a replaced motherboard just like the individual in the link below. If the phone was recently replaced, I recommend getting another refurb. If that's not possible, the reddit link in this thread may be helpful for you:
https://forum.xda-developers.com/nexus-5x/help/secure-boot-enabled-rpmb-t3617929
Sent from my Nexus 5X using Tapatalk
SlimSnoopOS said:
You have a phone with a replaced motherboard just like the individual in the link below. If the phone was recently replaced, I recommend getting another refurb. If that's not possible, the reddit link in this thread may be helpful for you:
https://forum.xda-developers.com/nexus-5x/help/secure-boot-enabled-rpmb-t3617929
Sent from my Nexus 5X using Tapatalk
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Well that sucks :/
Guess I'll just wait for my next phone.

Question Can't boot CPH2451

So I wanted to relock my bootloader so that I could use Netflix, Hulu, etc... When I fastboot flashing lock it only boots to bootloader. I can't flash anything with bootloader locked. When I unlocked again and flashed the stock boot and init_boot and stock recovery image I just get a bootloop into bootloader. I think the recovery image I flashed is not good. I can't even power the phone off through the bootloader power off option, it just reboots back to bootloader.
Can I get back to original stock rom and recovery?
Update. So now I'm completely bricked. I managed to switch the active slot to a, relocked the bootloader and now I just get a boot screen with red text that says the boot/recovery images have been destroyed and can not boot.
This happened because you failed to restore to full stock before locking locking bootloader. Well you could unlock bootloader again and fix it.
MrSteelX said:
This happened because you failed to restore to full stock before locking locking bootloader. Well you could unlock bootloader again and fix it.
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Thanks for the reply. I can't unlock again because it's stuck in a bootloop and won't boot into bootloader.
I will point out that recover and kernel both live in boot.img since there is no custom recovery for our phone.
MrSteelX said:
I will point out that recover and kernel both live in boot.img since there is no custom recovery for our phone.
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recovery is it's own file, not part of boot.img. at least that's what the rollback and developer preview is showing.

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