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Hi,
I have a good understanding of Nexus devices and I always used Cyanogenmod.
I'm keen in the differences between Nexus and Xperia devices.
To install CM on a nexus device is extremely straight forward
- unlock the bootloader (fastboot oem unlock) - will wipe userdata
- install TWRP (or CWM): fastboot flash recovery openrecovery-bla
- upload a CM update zip
- optionally encrypt the device / relock the bootloader
Although many say otherwise, a custom kernel will always boot fine with a locked bootloader on a nexus device. With a locked bootloader you're unable to flash a different recovery but if you lock the bootloader *after* having a custom kernel and custom recovery, everything is fine.
If you need to flash another recovery you need an unlocked bootloader.
- The last step - bringing everything back to factory defaults:
- unlock bootloader (fastboot oem unlock)
- flash a google factory image (fastboot also)
- lock bootloader (fastboot oem lock)
The device is now in the "brand new - factory state".
I've read about Xperia devices and my current understanding of the process is:
- use an exploit to gain root (due to the camera bug in unlocking the bootloader). The first question about this: I've seen in many places the fear of backdoors/malware in "rooting" software. Is there an open source - safe method for this?
- backup the TA partition (where can I get more info about the TA partition, what is it, its purpose?)
- unlock the bootloader
- flash TWRP/CWM
- flash cyanogenmod
- restore TA partition. This will relock the bootloader and bring the camera back.
The tricky part. I've seen in many places that a custom kernel won't boot with a locked bootloader. This is false in nexus devices, is there any documentation regarding xperia?
The last question, if I need to bring it back to factory defaults, will I be able to bring it to a 'factory brand new' state? Is there a factory image like the ones for nexus devices?
Thank you.
wkwkwk said:
Hi,
I have a good understanding of Nexus devices and I always used Cyanogenmod.
I'm keen in the differences between Nexus and Xperia devices.
To install CM on a nexus device is extremely straight forward
- unlock the bootloader (fastboot oem unlock) - will wipe userdata
- install TWRP (or CWM): fastboot flash recovery openrecovery-bla
- upload a CM update zip
- optionally encrypt the device / relock the bootloader
Although many say otherwise, a custom kernel will always boot fine with a locked bootloader on a nexus device. With a locked bootloader you're unable to flash a different recovery but if you lock the bootloader *after* having a custom kernel and custom recovery, everything is fine.
If you need to flash another recovery you need an unlocked bootloader.
- The last step - bringing everything back to factory defaults:
- unlock bootloader (fastboot oem unlock)
- flash a google factory image (fastboot also)
- lock bootloader (fastboot oem lock)
The device is now in the "brand new - factory state".
I've read about Xperia devices and my current understanding of the process is:
- use an exploit to gain root (due to the camera bug in unlocking the bootloader). The first question about this: I've seen in many places the fear of backdoors/malware in "rooting" software. Is there an open source - safe method for this?
- backup the TA partition (where can I get more info about the TA partition, what is it, its purpose?)
- unlock the bootloader
- flash TWRP/CWM
- flash cyanogenmod
- restore TA partition. This will relock the bootloader and bring the camera back.
The tricky part. I've seen in many places that a custom kernel won't boot with a locked bootloader. This is false in nexus devices, is there any documentation regarding xperia?
The last question, if I need to bring it back to factory defaults, will I be able to bring it to a 'factory brand new' state? Is there a factory image like the ones for nexus devices?
Thank you.
Click to expand...
Click to collapse
It's a little different than what you think:
1. Yup, use an exploit to gain root. The camera bug in the bootloader isn't a factor here. I don't know if there is an open source alternative to Kingo root or whatever. I think Kingo's safe though...
2. Back up the TA partition. The TA partition contains Sony's DRM keys: unique keys that are necessary for certain Sony software to work (such as the BIONZ image processor. When you lose the keys by unlocking the bootloader, the camera stops working because BIONZ no longer has its keys). The DRM keys can't be restored if they're lost (they're unique to every device), so if you don't back them up, you're screwed. Make sure to back them up, multiple times for security. Link for more about backing up TA: http://forum.xda-developers.com/showthread.php?t=2449244
3. You can flash CWM or TWRP without unlocking the bootloader (http://forum.xda-developers.com/showthread.php?p=45149758#post45149758). You just won't be able to boot a custom kernel. So cyanogenmod won't work on a locked bootloader because it can't boot its kernel. Any ROM that uses the stock kernel will be fine, though.
4. So you can't restore the TA partition if you're running cyanogenmod, as relocking the bootloader will make it unable to boot the custom kernel.
Custom kernels won't boot on a locked Xperia bootloader. I don't know about documentation, but I know from experience.
To restore to factory state, just restore TA partition and reflash stock firmware.
In short from what I figure is
If u use shady root app for pc just uninstall it and replace the superuser app that the shady app installs with the official one
The ta partition has all the Sony device specific DRM keys which are required for Sony stock apps and ****
And if u don't take a backup of it you can't revert to full stock after unlocking the bootloader
And lastly some guys are working on a way to fastboot a custom kernel via kexec or something without unlocking the bootloader so it doesn't break camera
Also don't unlock the bootloader now and just wait unless u really want to overclock by 100mhz CPU and 83mhz GPU and also break camera in the process
Sent from my C6903 using XDA Premium 4 mobile
m666p said:
In short from what I figure is
If u use shady root app for pc just uninstall it and replace the superuser app that the shady app installs with the official one
Click to expand...
Click to collapse
My main concern is that the root exploit will put malware more than in the superuser app. Once it has root access, it can put whatever it wants wherever it wants.
Have there been any real reports of malware or is it just speculation?
m666p said:
And lastly some guys are working on a way to fastboot a custom kernel via kexec or something without unlocking the bootloader so it doesn't break camera
Also don't unlock the bootloader now and just wait unless u really want to overclock by 100mhz CPU and 83mhz GPU and also break camera in the process
Click to expand...
Click to collapse
Sounds good. The main reason for Cyanogenmod is the OpenPdroid support. Would you happen to have a link with the work they're doing for booting a custom kernel on a locked bootloader?
I'm wondering how come booting custom kernels on a locked bootloader works just fine on Nexus devices, it may be 'as per design'.
Thanks.
[Q] From TWRP back to stock Recovery & locked Bootloader, keeping root & Custom ROM?
Hey everyone,
around new years eve I found out that the Android Device Manger's remote wipe is not secure enough for my needs, as it doesn't wipe the data (pictures, app data etc.) on the virtual "sdcard" of the HTC One's storage. So a potential thief could easily access my Custom Recovery and simply by flashing a custom ROM gain access to the data.
I described the problem in more detail over here: http://forum.xda-developers.com/showthread.php?t=2598154
While unlocking a friend's phone I noticed that during the "fastboot oem unlock" procedure all data is wiped from the device. Something I totally forgot about.
This behavior is exactly what I want if my device gets stolen.
I can accept the hassle to deal with a temporary custom recovery or ways to perform an online nandroid, without the comfort of a Custom Recovery and having to lock the Bootloader again after every Custom ROM upgrade. (Yes, it will be a pain in the b*ttocks, but I want my data to be inaccessible.)
What do I have:
HTC One (international GSM version)
HTCdev.com unlocked
SuperCID
TWRP as Custom Recovery
Rooted CustomRom (SinLess in my case) installed
What I want:
Bootloader to be locked (so that you can't simply flash a Custom Recovery)
Stock Recovery (so that you can't simply flash a Custom ROM)
being able to make a nandroid backup, before unlocking again
keeping root and the Custom ROM
keeping SuperCID (req. for SinLess)
I don't want to make a mistake, so I am asking for some guidance. :angel:
I am assuming correctly that just flashing the Stock Recovery image is enough to get rid of TWRP?
I know that this temporary loading of a Recovery was a thing some time ago (HTC Desire), but I haven't looked into it for years now.
Is this still possible and how do I do it? Does this allow me to perform a nandroid backup with a locked bootloader?
Otherweise: If my bootloader is locked and my recovery reverted to stock, is there a way to nandroid backup my HTC One? I know about the App "Online Nandroid" (Play Store Link) that allows to perform a nandroid backup on a rooted phone without booting to recovery. Does it work with the HTC One?
What happens if I "relock" this htcdev.com unlocked phone? Will I simply be able to use "fastboot oem unlock" (followed by a full wipe) to unlock the bootloader again? Or are there more strings attached, like requiring htcdev.com again or any other problems?
Is the CID setting affected by any of this?
Am I missing something else?
Will the following routine be my way to go if I want to flash something (ROM, Kernel etc.)?
Backup Apps: Titanium Backup
Perform full nandroid Backup (App: Online Nandroid?)
Pull nandroid Backup, Titanium Backup Files and all Data from /sdcard/
Unlock phone --> result: full wipe of device (no big deal, as everything is backed up)
Flash Custom Recovery
Push Installation files for (rooted) Custom ROM, Kernel etc.
Push Titanium Backup Files
Install (rooted) Custom ROM, Kernel etc.
Boot Phone, set it up as usual and restore Titanium Backup
Push Data back to /sdcard/
Flash Stock Recovery
Relock Bootloader
Is this correct?
Or did I miss something?
Thanks in advance
noone? :angel:
I would highly appreciate any guidance on this. Thanks in advance
spaboleo said:
noone? :angel:
I would highly appreciate any guidance on this. Thanks in advance
Click to expand...
Click to collapse
Well, instead of doing what ur trying to do, you can encrypt the phone. A full phone encryption will prevent any changes made to any of the phone partitions. Thus, a ROM cannot be flashed in TWRP recovery, which serves your purpose and is easier than what u mentioned. However, decryption will factory reset the phone.
To answer your points:
1. Yes, flashing the Stock Recovery image will get rid of TWRP. But, im not 100% sure whether the ROM will work properly on stock recovery
2. You can definitely load a recovery without flashing it. Not tried on a locked bootloader. Sorry
3. Not sure whether the Root will be maintained after locking the bootloader and flashing stock recovery. If it is, then the Online Nandroid will definitely work
4. No strings attached. oem unlock will definitely do the trick
5. Nope, u will still be S-OFF. No CID is changed
spaboleo said:
no one?
Click to expand...
Click to collapse
Since you have s-off just use revone to unlock the bootloader without wiping data.
Procedure to lock things down:
Code:
fastboot flash recovery stock_recovery.img
fastboot oem lock
Procedure to return to unlocked/custom recovery:
Code:
adb push revone /data/local/tmp
adb shell
su
cd /data/local/tmp
chmod 755 revone
./revone -u
reboot bootloader
fastboot flash recovery twrp_recovery.img
You could also do revone with file explorer and terminal emulator and then flash TWRP directly in the OS using Flashify. This would allow you to return to unlocked with custom recovery without needing a computer.
raghav kapur said:
Well, instead of doing what ur trying to do, you can encrypt the phone. A full phone encryption will prevent any changes made to any of the phone partitions. Thus, a ROM cannot be flashed in TWRP recovery, which serves your purpose and is easier than what u mentioned. However, decryption will factory reset the phone.
To answer your points:
1. Yes, flashing the Stock Recovery image will get rid of TWRP. But, im not 100% sure whether the ROM will work properly on stock recovery
2. You can definitely load a recovery without flashing it. Not tried on a locked bootloader. Sorry
3. Not sure whether the Root will be maintained after locking the bootloader and flashing stock recovery. If it is, then the Online Nandroid will definitely work
4. No strings attached. oem unlock will definitely do the trick
5. Nope, u will still be S-OFF. No CID is changed
Click to expand...
Click to collapse
Thank you
Well I looked into encryption and it would require to use a PIN or Password lock instead of the Patternlock I prefer.
There was some mod that derived a PIN from a pattern input to work around this limitation, but I don't think it's the best idea to fiddle around with system files of that level.
But after reacing cschmitt's post, about the fact that there is a way to unlock the bootloader without wiping, my whole thoughts from the initial post are pointless
I guess using Android encryption is the only way.
Is it possible to use phone encryption together with location-based (wifi-based) disabling of the encryption using the "SecureSettings Plugin" for Tasker?
cschmitt said:
Since you have s-off just use revone to unlock the bootloader without wiping data.
Procedure to lock things down:
Code:
fastboot flash recovery stock_recovery.img
fastboot oem lock
Procedure to return to unlocked/custom recovery:
Code:
adb push revone /data/local/tmp
adb shell
su
cd /data/local/tmp
chmod 755 revone
./revone -u
reboot bootloader
fastboot flash recovery twrp_recovery.img
You could also do revone with file explorer and terminal emulator and then flash TWRP directly in the OS using Flashify. This would allow you to return to unlocked with custom recovery without needing a computer.
Click to expand...
Click to collapse
Wow! Thanks for pointing that out.
So the bootloader lock does not offer the sufficient protection that I am looking for
Unless...I return to S-On each and every time a I want to flash a rom or an Update.
Can I be sure that with S-On revone does not work to unlock the bootloader without wiping?
(edit: Warning Comment: don't do that...read below)
Thanks everyone
spaboleo said:
Thank you
Well I looked into encryption and it would require to use a PIN or Password lock instead of the Patternlock I prefer.
There was some mod that derived a PIN from a pattern input to work around this limitation, but I don't think it's the best idea to fiddle around with system files of that level.
But after reacing cschmitt's post, about the fact that there is a way to unlock the bootloader without wiping, my whole thoughts from the initial post are pointless
I guess using Android encryption is the only way.
Is it possible to use phone encryption together with location-based (wifi-based) disabling of the encryption using the "SecureSettings Plugin" for Tasker?
Wow! Thanks for pointing that out.
So the bootloader lock does not offer the sufficient protection that I am looking for
Unless...I return to S-On each and every time a I want to flash a rom or an Update.
Can I be sure that with S-On revone does not work to unlock the bootloader without wiping?
Thanks everyone
Click to expand...
Click to collapse
Nope, sorry. Remote encryption is impossible. You will need to manually choose the encryption option in security settings
P.S. Please hit the THANKS button if you think I helped you
spaboleo said:
Wow! Thanks for pointing that out.
So the bootloader lock does not offer the sufficient protection that I am looking for
Unless...I return to S-On each and every time a I want to flash a rom or an Update.
Can I be sure that with S-On revone does not work to unlock the bootloader without wiping?
Click to expand...
Click to collapse
The locked bootloader still offers the same level of protection. Unlocking via fastboot still wipes data, and the only way to unlock it via revone (which does not wipe data) is to be booted into the OS, which is protected by your password/PIN/pattern lock. (You might want to disable ADB while not using it, but in current versions ADB require authorization before it will connect to a new computer, and that would require unlocking your device with the password/PIN/pattern in order to approve the connection.)
If you have a locked bootloader with stock recovery it's not possible to use revone to unlock the bootloader via fastboot or adb, so you're still protected.
You cannot use revone to unlock bootloader if s-on.
An whatever you do do not go back to s-on.
cschmitt said:
The locked bootloader still offers the same level of protection. Unlocking via fastboot still wipes data, and the only way to unlock it via revone (which does not wipe data) is to be booted into the OS, which is protected by your password/PIN/pattern lock. (You might want to disable ADB while not using it, but in current versions ADB require authorization before it will connect to a new computer, and that would require unlocking your device with the password/PIN/pattern in order to approve the connection.)
If you have a locked bootloader with stock recovery it's not possible to use revone to unlock the bootloader via fastboot or adb, so you're still protected.
You cannot use revone to unlock bootloader if s-on.
An whatever you do do not go back to s-on.
Click to expand...
Click to collapse
I was initially S-OFF. I had to S-ON the phone to give it for warranty repair. I can simply use Rumrunner to S-OFF the phone again right? Or are there any other complications?
Thank you
raghav kapur said:
I was initially S-OFF. I had to S-ON the phone to give it for warranty repair. I can simply use Rumrunner to S-OFF the phone again right? Or are there any other complications?
Click to expand...
Click to collapse
There have been a number of cases of going back to s-on with locked bootloader and then not being able to unlock the bootloader again or regain root, so could not s-off again.
cschmitt said:
The locked bootloader still offers the same level of protection. Unlocking via fastboot still wipes data, and the only way to unlock it via revone (which does not wipe data) is to be booted into the OS, which is protected by your password/PIN/pattern lock. (You might want to disable ADB while not using it, but in current versions ADB require authorization before it will connect to a new computer, and that would require unlocking your device with the password/PIN/pattern in order to approve the connection.)
If you have a locked bootloader with stock recovery it's not possible to use revone to unlock the bootloader via fastboot or adb, so you're still protected.
You cannot use revone to unlock bootloader if s-on.
An whatever you do do not go back to s-on.
Click to expand...
Click to collapse
Thank you!
I thought the revone command was operable via fastboot/adb from the bootloader as well.
That is good news.
So one question remains.
Is there a way to access data from the stock recovery (maybe locating via "adb shell ls..." and then using "adb pull...") when s-off with a locked bootloader?
Assuming adb is turned off in the OS (developer options) if not used?
If this isn't possible this seems to be the perfect solution
I thank you sincerely!
spaboleo said:
So one question remains.
Is there a way to access data from the stock recovery (maybe locating via "adb shell ls..." and then using "adb pull...") when s-off with a locked bootloader?
Assuming adb is turned off in the OS (developer options) if not used?
Click to expand...
Click to collapse
All that's available in stock recovery in the ability to flash an HTC signed zip (official OTA, for example) and to factory reset.
There is no backup/restore/adb access/file manager like in a custom recovery.
Perfect :good: :laugh:
Sorry for asking that many questions, but as user the motto is "better safe than sorry".
I unlocked and s-offed my HTC One around June-August 2013 and besides a quick TWRP update here and there and a monthly ROM upgrade there was absolutely no need to fiddle around with it more.
Aftermarket development has become that reliable that it's actually possible to find a good "set it and forget it" daily driver setup.
And since I am not a developer and don't deal with those questions on a regular basis, I'm always not 100% sure if I get all the facts right.
Thanks for helping me out with this one!
I'm going to try it next weekend or next week: Going to backup my data and simulate a potential theft with the locked bootloader and reverted to stock recovery. Remote-Wiping the device, unlocking the bootloader conventionally via fastboot and making sure that this wipes all user-data on the phone. And then I'm going to give that booted into OS, revone unlock a try and simulate a potential rom upgrade, just as you described it.
Right now I just can't risk my daily driver phone, as I wouldn't have the time to set it up again.
Thanks for your extended help
Finally feeling secure again on Android.
In the Xperia SP versions which don't allow bootloader unlocking (Bootloader unlock allowed: no) , does the phone not boot in fastboot mode? I can go to Flashtool mode but not to fastboot. Is this the reason why?
update:
I only got you question now.
It is true that fastboot doesn't work with locked bootloaders, and that Flashtool does work.
But that doesn't mean your custom rom or kernel you flash with flashboot will boot. It works for stock.
If you're at 4.1 there are ways to get root and CWM, I don't think there are easy ways to flashing custom rom or installing root or CWM from 4.3 unrooted without unblocking, getting back to 4.1 to get root on 4.3, or perfoming factory reset.
You may want this: http://forum.xda-developers.com/showthread.php?t=2649923
It's a very long way, but at least it works. You can get 4.3 rooted with recovery, but you must go back to 4.1.2 to run CWM once. That is for root; Recovery procedure includes factory resetting...
Hope you can get it working as you want... Locked bootloader really are nasty
I unlocked my bootloader, installed twrp and several roms to try them out, then decided to go back to stock. Currently have OOS 3.5.4 installed with stock recovery (that came with the toolkit). However, whenever I try to lock the booltloader again, the phone won't boot up. It will bootloop, or just stay off with the led glowing white. I tried to sideload the stock ROM from OnePlus, but it fails after about 45% completion. I tried both 3.5.3 and 3.5.4 and both fail after about 45%. The only way to get the phone to boot again is by unlocking the bootloader again, then it boots just fine. Tried unlocking with the toolkit as well as fastboot oem lock. Both give me the prompt on the phone, then wipe the phone and go into the bootloop.
Any suggestions on how to re-lock the bootloader? I want to be able to get the OTA update, which I think will fail with an unlocked bootloader. Note, I have also tried loading the Nougat update from settings - system update - local upgade (both full and update) and they also fail to load shortly after booting to recovery.
Thanks,
TR
Instead of using the toolkit, try just doing it manually.
fastboot oem lock IS the correct way to lock the bootloader.
If you're running into all those issues, try to reflash the stock rom from the official site. OR try this
NOTE: This WILL wipe everything on your phone so make a backup first!
First Unlock booloader1. On your phone go into Developer screen (Settings --> Developer Options)
If you don't have this go back to Settings --> About Device. Tap "Build number" 7-10 times to unlok developer options
2. In Developer Options turn on "USB Debugging" and "OEM Unlock"
3. Open ADB in command prompt and go to the directory where ADB is.
Type adb reboot bootloader
4. Once your device is in fastboot mode, type in fastboot devices to make sure your device is listed
5. Type in fastboot oem unlock to unlock your device bootloader
You can check to make sure it was properly unlocked by typing in fastboot oem device-info.
6. Reboot into your system
Files we need7. Download the following files:
TWRP - https://build.nethunter.com/test-builds/twrp/oneplus/twrp-3.0.2-0-oneplus3t.img
No-verity-opt-encrypt - https://build.nethunter.com/android-tools/no-verity-opt-encrypt/no-verity-opt-encrypt-5.0.zip
Magisk - http://tiny.cc/latestmagisk
Phh-Superuser - https://forum.xda-developers.com/attachment.php?attachmentid=3988488&d=1483407725
Latest Stable Nougat Rom - http://otafsc.h2os.com/patch/amazon...s3TOxygen_28_OTA_035_all_1612310259_2dc0c.zip
8. Copy all the files to your phone (keep the original on your pc just in case)
9. Load back up to fastboot mode
In ADB type adb reboot bootloader
10. Flash twrp img we downloaded above by typing
fastboot flash recovery twrp-3.0.2-0-oneplus3t.img
11. After this reboot into the system
Install all of our downloaded files through TWRP12. Now boot into recovery by issuing the following ADB command
adb reboot recovery (you should go into TWRP)
13. Once you're in twrp flash the "no-verity-opt-encrypt-5.0.zip" file OR you can format the data partition to f2fs to prevent the dm-verity error.
14. Now install the stock stable nougat rom we downloaded above
15. Do a factory system wipe / cache & dalvik
16. Install magisk through TWRP
17. Wipe cache/dalvik
18. Install phh SuperUser
19. Now reboot into the system normally.
NOTE: This *COULD* take a while since you did a clean install of nougat so just be patient and you should be good to go after this.
Thanks for the reply.
I did do fastboot oem lock, and it results in an unbootable system. fastboot oem unlock makes it bootable again. Not sure why. Also, whenever I do adb sideload <any_rom> it fails after about 45%. Not sure what's happening. Your instructions would get me to Nougat with TWRP and an unlocked bootloader, which may be what I end up doing, but I was trying to get back to fully stock, and locked again, so that OTA's will work properly. If nothing else works, I will go the route you suggest above.
Thanks again!
I just figured I'd try to get you to a working system/phone. After you get all that working you can probably lock your bootloader back to default. Now, I'm not 100% sure, but I believe that if you have a custom recovery you will need to restore that to stock as well before setting the bootloader back to locked.
TXRangerXDA said:
I unlocked my bootloader, installed twrp and several roms to try them out, then decided to go back to stock. Currently have OOS 3.5.4 installed with stock recovery (that came with the toolkit). However, whenever I try to lock the booltloader again, the phone won't boot up. It will bootloop, or just stay off with the led glowing white. I tried to sideload the stock ROM from OnePlus, but it fails after about 45% completion. I tried both 3.5.3 and 3.5.4 and both fail after about 45%. The only way to get the phone to boot again is by unlocking the bootloader again, then it boots just fine. Tried unlocking with the toolkit as well as fastboot oem lock. Both give me the prompt on the phone, then wipe the phone and go into the bootloop.
Any suggestions on how to re-lock the bootloader? I want to be able to get the OTA update, which I think will fail with an unlocked bootloader. Note, I have also tried loading the Nougat update from settings - system update - local upgade (both full and update) and they also fail to load shortly after booting to recovery.
Thanks,
TR
Click to expand...
Click to collapse
I also have the same problem, after the bootloader lock the phone does not start.
I tried with all the possible procedures, also even the rom flash in local and sideload it does not work, It comes to 45% and then fails.
we will highlight the problem, so everyone will know and maybe there is a solution
m0d hipp¥ said:
I just figured I'd try to get you to a working system/phone. After you get all that working you can probably lock your bootloader back to default. Now, I'm not 100% sure, but I believe that if you have a custom recovery you will need to restore that to stock as well before setting the bootloader back to locked.
Click to expand...
Click to collapse
But of course, you can't relock phone with a non standard recovery. Replace TWRP with the ROMs real recovery and relock will work again.
That's what I figured. Thanks for the confirmation.
Use the unbrick tutorial to go back to stock
This is what i did
https://forum.xda-developers.com/oneplus-3t/how-to/unbrick-unbrick-tutorial-oneplus-3t-t3515306
pitrus- said:
But of course, you can't relock phone with a non standard recovery. Replace TWRP with the ROMs real recovery and relock will work again.
Click to expand...
Click to collapse
I'm sorry, even with the stock recovery but does not work, it was the first thing I did
You can a unbick tutorial. It worked for my OnePlus 3T. Just search up How to unbrick (whatever OnePlus device you have) on Google. Then follow all the instructions carefully. If you need help with it I could try to do a remote session with you. Edit: It will erase all data and you will boot with oos 3.5.3 ( I also had the same issue as you. But I couldn't install any zip with stock recovery or adb side load.
Haven't seen nothing on the fórum about this particular subject, locking the bootloader seems a problem in this phone
enokack said:
Haven't seen nothing on the fórum about this particular subject, locking the bootloader seems a problem in this phone
Click to expand...
Click to collapse
Only if you have modified the phone in some way or another (like rooting and installing twrp) before trying to re-lock.
If you keep it stock, you should be able to re-lock. Or else, just use the Qualcomm restore method to re-lock.
tried this
OK what i did was when the phone was starting and vibrating I push the power bottom and volume down bottom at the same time ,then i connected the phone to the PC,from the panel in the phone there are 3 categories to erase everything on the phone I did it all(1,2,3) and then I put the phone in ADB mode from the control panel in the phone,After that I flash via fastboot the original .zip from one plus for the version 4.0.3 (1.4 GB) ,when it finished I restarted and the phone started normal again,I hope this help someone alse,I was so desesperated:silly:.
I think the problem in re-locking it is the modified boot image. Locked bootloaders don't support those.
re-locking bootloader will getback the warranty ???
No solutions till now
enokack said:
Haven't seen nothing on the fórum about this particular subject, locking the bootloader seems a problem in this phone
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Its three easy steps, no need to use any toolkit just follow the instructions. https://forums.oneplus.net/threads/...-3-3t-and-go-back-completely-to-stock.456232/
Abrar123 said:
re-locking bootloader will getback the warranty ???
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Unlocking the bootloader does not void the warranty on this device:
https://oneplus.net/support/answer/will-rooting-or-unlocking-the-bootloader-void-my-warranty
Once I have root, is there a command to re-lock and later eventually unlock the bootloader again?
I remember this was possible with google nexus devices, there was a shell command (require root) that was able to change bootloader status
I would like to install a custom ROM. But I really hate that screen when you first boot saying you have unlocked your phone blah blah. I would like to install a custom ROM with my boot loader unlocked. After it's up and running I want to re lock it so that message does not appear on boot. Also is it possible to disable the DM- verity check message as well when booting with a custom ROM? The goal is to have a custom ROM on the phone with no warning messages at all about anything.
That's not possible. To be able to re-lock you need a kernel that is signed for the locked bootloader which effectively makes it impossible to run any ROMs using any other kernel and recovery than stock OOS and also makes it quite a mess to update ROMs as you would have to unlock bootloader everyone to run TWRP and also unlocking and relocking also factory restores the phone everytime so you would lose all your data all the time. ?
It's possible to remove the DM message at boot. Look in the stickied Q&A thread for details.