Database Develop

[Q] HTC ONE M7 - Can't unlock bootloader after it is relocked

i have searched high and low for help on this one and can't find anything similar.... Though I found one thread that suggests I attempt the HTVDEV unlock code 5 times in a row.. Which did not work.
I returned my phone to stock several weeks ago. Locked the boot loader (see pic#1) Then I had something weird happen , where The phone rebooted to a "enter password to decrypt"??? I never encrypted my phone. So I read the only way around this was to do a factory reset. So, I rebooted the phone into bootloader and attempted a factory reset. The phone then rebooted and is frozen on the HTC splash screen. See pic#3
I have attempted to unlock the bootloader so I can flash a good recovery (which I cannot access, then will just reboot)
So basically I only have access to fastboot. When I plug in the phone into windows, I cannot access through ADB. (Same thing in Linux)
Any help would be appreciated.
Thanks

Have you attempted an RUU?

sauprankul said:
Have you attempted an RUU?
Click to expand...
Click to collapse
I could not get an ADB connection. I attempted to flash a new recovery, but of course with no root, s-on and bootloader locked... no dice.

charlesairman said:
I could not get an ADB connection. I attempted to flash a new recovery, but of course with no root, s-on and bootloader locked... no dice.
Click to expand...
Click to collapse
Can you get into fastboot?

sauprankul said:
Can you get into fastboot?
Click to expand...
Click to collapse
fasboot yes for me. i can get to the point to unlock the bootloader, but it freezes when i tap "yes"
Gentleman, any luck on this?

preslav88 said:
fasboot yes for me. i can get to the point to unlock the bootloader, but it freezes when i tap "yes"
Gentleman, any luck on this?
Click to expand...
Click to collapse
Yeah and all you can do from fastboot with those restrictions is, erase cache. Erase it like 3 times in a row and see if it works, who knows. I flashed cwm recovery which sometimes gets me into recovery, like 1 out of 10 recovery flashes. then you are allowed to finally use adb commands

[Q] ***TAMPERED*** ***UNLOCKED*** Phone stuck in bootloader

Hi,
Today i attempted to unlock my phones bootloader and flash TWRP (twrp-2.8.1.0-20142812-memul). I unlocked it fairly easily using the htc.dev website but encountered an issue when trying to flash the Recovery. The phone is stuck in the bootloader with the message ***TAMPERED*** ***UNLOCKED*** showing at the top. I cannot get off this and every attempt to get into the phone, such as by clicking on Reboot or holding the POW+VOL UP+VOL DOWN buttons, has failed, simply dumping me back on the bootloader homescreen. Does anybody know how to solve this issue?
Kind regards
James

Try re-flashing recovery from fastboot on your pc, I would even try redownloading the recovery just to be sure you didn't get a corrupted copy previously, also clear cache after flashing recovery.
The tampered message is normal so just ignore that.
You can even try rebooting boot loader and or recovery using fastboot commands, just search fastboot commands on Google and you'll find a list of relevant commands.

Jameswebb97 said:
Hi,
Today i attempted to unlock my phones bootloader and flash TWRP (twrp-2.8.1.0-20142812-memul). ...
Kind regards
James
Click to expand...
Click to collapse
there's a few problems with TWRP i notice in other phones. one of them was stuck in bootloader.
my solution was remove usb cable before rebooting.

got same issue...
Jameswebb97 said:
Hi,
Today i attempted to unlock my phones bootloader and flash TWRP (twrp-2.8.1.0-20142812-memul). I unlocked it fairly easily using the htc.dev website but encountered an issue when trying to flash the Recovery. The phone is stuck in the bootloader with the message ***TAMPERED*** ***UNLOCKED*** showing at the top. I cannot get off this and every attempt to get into the phone, such as by clicking on Reboot or holding the POW+VOL UP+VOL DOWN buttons, has failed, simply dumping me back on the bootloader homescreen. Does anybody know how to solve this issue?
Kind regards
James
Click to expand...
Click to collapse
I had that issue according to my version of TWRP. Try it with 2.8.5.0. After i re-flashed it with that, all worked fine. Give me feedback if you could solve it.

agh well after ages of trying different methods nothing worked. Even took it to my local phone shop who do software tweaks and recovery, the guy told me the entire Android OS had been removed...? Gave up and bought a new phone, thank you guys for trying anyway <3

How to Re-Lock Bootloader?

I need to lock my bootloader to do an exchange at T-Mobile. I have 20R stock flashed, but it still says custom bootloader upon boot, how do I relock it safely?
I read that "fastboot oem lock" will work, but will brick it if I don't do it perfectly. Any advice on what to do?

TechGuruGJ said:
I need to lock my bootloader to do an exchange at T-Mobile. I have 20R stock flashed, but it still says custom bootloader upon boot, how do I relock it safely?
I read that "fastboot oem lock" will work, but will brick it if I don't do it perfectly. Any advice on what to do?
Click to expand...
Click to collapse
ive done it .. it works. it will build dalvik once it reboots.
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore

I'm terribly sorry if bumping is not ok.
Thought it wasn't worth making a new thread, since my post is about the one above.
Has anybody actually tried these steps above? (Since every other thread mentioning this says it's a one-way only thing..)
Does locking the bootloader means also loosing the custom recovery? (I'd expect that, but asking to be sure)
Does it return the phone to it's original state? (ie. before one unlocked the bootloader, or there are some differences?)
Does it also means I would be able to get official OTA updates and so on? (since with a custom recovery, that's not possible)
Thanks in advance.

Yes, it does work. I did it, worked perfectly. Yes it does return your device to it's original state. Just make sure the stock ROM is flashed and all should be well. I didn't try, but I see no reason why it wouldn't let you get OTA updates from T-Mobile. Let me know if you need help.

Nadeox1 said:
I'm terribly sorry if bumping is not ok.
Thought it wasn't worth making a new thread, since my post is about the one above.
Has anybody actually tried these steps above? (Since every other thread mentioning this says it's a one-way only thing..)
Does locking the bootloader means also loosing the custom recovery? (I'd expect that, but asking to be sure)
Does it return the phone to it's original state? (ie. before one unlocked the bootloader, or there are some differences?)
Does it also means I would be able to get official OTA updates and so on? (since with a custom recovery, that's not possible)
Thanks in advance.
Click to expand...
Click to collapse
ive said ive done it. on the above instructions you dont beleive.??
i think you loose the twrp phone doesnt show unlocked bootloader message did not check recovery but it must revert t stock one.. not sure about OTA since am not in tmobile network.
you dont need OTA. you can always download KDZ and flash it with LGUP.
and stay uptodate.

raptorddd said:
ive said ive done it. on the above instructions you dont beleive.??
i think you loose the twrp phone doesnt show unlocked bootloader message did not check recovery but it must revert t stock one.. not sure about OTA since am not in tmobile network.
you dont need OTA. you can always download KDZ and flash it with LGUP.
and stay uptodate.
Click to expand...
Click to collapse
Thanks both for replying.
And no @raptorddd , I did not mean that.
Your post is the only mentioning that locking the bootloader is possible, while all the other similar threads have ony people saying otherwise / it's not possible. I guess a slightly doubt is legit to have, don't take it wrongly

raptorddd said:
ive done it .. it works. it will build dalvik once it reboots.
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
Click to expand...
Click to collapse
I have follow this instructions and now it giving me and error. Any fix??

WARMANH811 said:
I have follow this instructions and now it giving me and error. Any fix??
Click to expand...
Click to collapse
What error?

TechGuruGJ said:
What error?
Click to expand...
Click to collapse
Secure booting Error!
Error code: 1003
MODIFIED ! !

WARMANH811 said:
Secure booting Error!
Error code: 1003
MODIFIED ! !
Click to expand...
Click to collapse
are you sure you have h811.? i did not get that error ive tried this twice..
i remeber getting an security boot error on LG G2 i fix by flashing firmware .. so maybe KDZ could help..
if not am not sure then search for that error and find out how to fix.

raptorddd said:
ive done it .. it works. it will build dalvik once it reboots.
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
Click to expand...
Click to collapse
My H811 T-mobile phone needs service. It has original 20v software version. It is unlocked with TWRP and rooted. Can I use this method? Do I first have to downgrade software to some other version? Will this method also take out TWRP and root or do I still have to take them out before doing this? How? Please help.

joecandle said:
My H811 T-mobile phone needs service. It has original 20v software version. It is unlocked with TWRP and rooted. Can I use this method? Do I first have to downgrade software to some other version? Will this method also take out TWRP and root or do I still have to take them out before doing this? How? Please help.
Click to expand...
Click to collapse
no need to downgrade. to remove root and any trace if phone works. is to use KDZ then once it boots into system do the lock procedure. so it locks and the small white letter are removed. this way its like stock rom and recovery and the above commmands will make bootloader locked. and sent to repair. if bootloops try the freezing method.

Used on an LG Aristo that has Cyanogen and it worked
raptorddd said:
ive said ive done it. on the above instructions you dont beleive.??
i think you loose the twrp phone doesnt show unlocked bootloader message did not check recovery but it must revert t stock one.. not sure about OTA since am not in tmobile network.
you dont need OTA. you can always download KDZ and flash it with LGUP.
and stay uptodate.
Click to expand...
Click to collapse
This was the only one i found that didnt brick my phone and trust me ive bricked and unbricked this phone many times

When you use the fastboot command to lock back your bootloader, the phone doesn't revert automatically to the stock recovery and actually that is partly the reason why it bricks and other main reason is that changes made to bootloader to obtain root brick the phone. before you relock bootloader, if you have SuperSU (in-app menu option) or Magisk (uninstall zip file), use their respective methods to unroot the phone, then use twrp to flash .image file of stock recovery to recovery partition then use the fastboot command to lock the bootloader. Even then it may or may not work because if whatever method the phone uses to check the integrity of bootloader and/or recovery, such as md5, if it doesn't match, the phone will still brick. Since all your data on phone will be erased regardless as soon as you lock the bootloader, i personally just fastboot lock the bootloader, remove battery to power down, use the volume up and plug usb cable in from pc to put phone in download mode and just use LGUP (uppercut) if have kdz file already, which i do, i just let LG Bridge download the file, find it in programs folder and copy it to another location before LG Bridge deletes it --OR-- just use error recovery option in Software Update tab in LG Bridge as both LGUP and LG Bridge will detect the phone in download mode even if it is bricked.
By the way, I have used both methods above dozens of times without any issues, someone above who mentioned phone boot-looping because of locking the bootloader, it is boot-looping not because of hardware flaw which was widespread in LG G3 but a software issue (phone boots up, doesn't find the software configuration it is looking for and just restarts) and they are not the same issues, no need to freeze the phone, won't help.

the method works, but no OTA from T-Mobile. "verification problem".
When I try to "adb reboot bootloader" I get "security error".
If I try reboot recovery, TWRP is definitely not there.
Just want to update from20Q to 20X.
Any help would be appreciated.

metropical said:
the method works, but no OTA from T-Mobile. "verification problem".
When I try to "adb reboot bootloader" I get "security error".
If I try reboot recovery, TWRP is definitely not there.
Just want to update from20Q to 20X.
Any help would be appreciated.
Click to expand...
Click to collapse
The above points to you not giving permission possibly because either you missed the permission pop-up or selected option that didn't allow permission.

Can anyone help me?
When i unlock bootloader on my lg velvet 4g the fingerprint stop working so i want to relock. But when i put this on cmd "adb reboot bootloader" it only restarts my phone. Doesnt shows me the bootloader menu it only restarts normaly

Lukasz23 said:
Can anyone help me?
When i unlock bootloader on my lg velvet 4g the fingerprint stop working so i want to relock. But when i put this on cmd "adb reboot bootloader" it only restarts my phone. Doesnt shows me the bootloader menu it only restarts normaly
Click to expand...
Click to collapse
managed to solve?

P9 update

I have an update waiting to be done on my P9, every time I go to do it, it fails and comes up saying reboot system, any ideas how to fix this??

Your BOOTLOADER is unlock ?

Yes mate but I can't seem to lock it, when I try to, on reboot it white screens with the android symbol then sits like that unless I manually reboot it

swannyboy83 said:
Yes mate but I can't seem to lock it, when I try to, on reboot it white screens with the android symbol then sits like that unless I manually reboot it
Click to expand...
Click to collapse
You're on Nougat?

Marshmallow

Just follow this to lock bootloader
https://forum.xda-developers.com/p9/themes/antic-theme-t3664356

I tried it and it's come up saying device has failed verification, it attempts the update and fails then reboots

swanny83 said:
I tried it and it's come up saying device has failed verification, it attempts the update and fails then reboots
Click to expand...
Click to collapse
try this, i got from emui website
Note: to re-lock the bootloader after unlocking it, restore the device’s software to the Huawei official version using a microSD card then switch the device to fastboot mode and enter “fastboot oem unlock ****************” in the computer’s command prompt, where * refers to the 16-digit unlock password. The device will then restart, and the bootloader lock status will change to “Bootloader Lock State: RELOCKED”.

Well I tried, I've not got a clue what I am doing, it's still unlocked so I will leave it as it is, I have a working phone don't want to mess around with it and end up totally ruining it

Try installing the update via dload

... (3 dot option) and then, download latest full build inside updater setings, thry that need to be around 2gb file

Ok so I managed to sort this out...... finally, just one thing else how can I change the lock screen picture, it gives me the option to do so but I select the picture but remains the same as it was, any ideas?

Bricked! Help me please.

Hello everyone
My brother's Mi A2 is bricked for no reason. I tried to solve this problem and searched a lot but didn't manage to solve it. I hope you can help.
* before telling my story here is some stuff to know:
- The phone was running official firmware and bootloader is locked, I've never played with it's software before.
- Oem unlocking option isn't turned on.
- The phone doesn't go to recovery mode, only fastboot or regular boot.
- I used EDL mode in every flashing attempt.
- I don't remember that there is a mi account assigned to the device.
* Here is what happened:
- The phone suddenly shut down during a call and never passed the AndroidOne logo after that.
- Tried EDL mode and miflash to flash the latest firmware. Flashing completed successfully but the phone still stuck on the androidone logo.
- Did it again and again but the result was constant.
- Tried flashing older firmware "Oreo 8.1" but during flashing system.img the process stopped with an error. (I don't remeber what the error was).
- I tried to turn on the phone but after showing AndroidOne logo This message appeared:
"Your device is corrupt. It can't be trusted and will not boot.
Visit this link on another device: g.co/ABH"
and the device shuts down in a minute.
Hint: Sometimes when I try to turn one the phone the above message appears after androidone logo and sometimes the device just keep showing the logo.
- Trying to flash any firmware version by using Miflash Beta gives an error message "Can not found programmer file" immediately. when I try again it gives: "can't read from port COM4", Changing the port gives the same error with different port number.
-When I use any other version of "Portable miflash", The flashing process starts normally but fails when trying to flash "dsp.img", giving an error of "writing time out".
- I tried reinstalling all drivers needed with no change at all.
I hope that you guys can help me solving this problem.
Thank you so much!

Try EDL mode opening your phone...

Badotti said:
Try EDL mode opening your phone...
Click to expand...
Click to collapse
I did.
Bootloader is locked, so EDL mode was the only way. But now I get error writing timed out while flashing any firmware version.

Ahmed A. Mohsen said:
I did.
Bootloader is locked, so EDL mode was the only way. But now I get error writing timed out while flashing any firmware version.
Click to expand...
Click to collapse
https://www.youtube.com/watch?v=wav1xNdJzII
Youtube you find several tutorials, work and open the phone ...

Badotti said:
https://www.youtube.com/watch?v=wav1xNdJzII
Youtube you find several tutorials, work and open the phone ...
Click to expand...
Click to collapse
I opened the phone and used edl mode already but the problem is still present.

up

Have you tried to use qfil? See in the 3d dedicated to conversion A2 <> 6x

HTCDevil said:
Have you tried to use qfil? See in the 3d dedicated to conversion A2 <> 6x
Click to expand...
Click to collapse
This needs bootloader to be unlocked and my device's bootloader is locked.
Any solutions?

Go to service center this is last option you save RIP mi a2 ?

As I can see from picture you have posted, your bootloader is unlocked.

SkullSatan88 said:
Go to service center this is last option you save RIP mi a2
Click to expand...
Click to collapse
They refused to receive my device because I bought it from another country.

bomil said:
As I can see from picture you have posted, your bootloader is unlocked.
Click to expand...
Click to collapse
when I checked bootloader status in the beginning it was locked.
Are you sure that it's now unlocked?

Text me on telegram. @dejavutr