Database Info

[Completed] Htc one mini m4 go back to stock rom

Hello everyone!
I've had my m4 for about 5/4 years now and my battery has been getting worse more and more slowly for about 2 months now. Because I want to invoke my guarantee I tried to return the phone to stock rom from Insertcoin, unroot it and lock the bootloader. I flashed the stock rom from this(http://forum.xda-developers.com/showthread.php?t=2791725) thread and everthing was working fine. After that I went into fastboot and typed the command "fastboot oem lock", because I read so on the internet. Now there seems to be no rom or recovery on my phone anymore and everytime i reboot it just straigth goes into the bootloader. None of the tools I found on google worked so I thought somebody here could help me because I'm almost getting desperate.
I will also include a link to a photo of the bootloader, maybe it's helpful (https://www.dropbox.com/s/0j7830bw6mxjjrv/IMG_20150511_190346.jpg?dl=0).
Also notice that this is one of my first posts in this forum and english isn't my mother tongue.
I would really appreciate a fast but especially useful and relative easily written response.
Thanks!

Hi, thank you for using XDA Assist. I would unlock the bootloader, fasboot oem unlock, and flash the stock firmware from the link you provided.

fastboot oem unlock error
I tried fastboot oem unlock but it just wrote "[ERR] Command error!!!". I also tried to unlock it via HTCdev again but the sites seems to be down, everytime i select my device and click on Begin Unlock Bootloader it opens this small window and says that the site is unavailable, I also tried it a few different times. Is there no other tool to unlock the bootloader or somehow get my rom started again, because I'm wondering why it's erasing or at least not giving me access to the rom that was perfectly working before anymore after locking the bootloader.
-Edit:
OK so i found out how to do it with HTCdev. I just had to create an account, log in and do exactly the same as before. I had to give it a few tries, but in the end it worked. Now my question is how I can relock my bootloader without causing the same again? I didn't find anything other than the cmd prompt fastboot oem lock so if maybe somebody could help me.

Thread closed.

PB2-690Y Bootloader Unlock

I have the US version the 690Y and get the remote failed unknown command error when I do the command fastboot oem unlock.I even tried the newer fastboot oem flashing unlock.Do you have any idea how to work this out?My device is recognized in fastboot,all drivers correct but I keep getting errors.Any ideas?I haven't seen anyone post they've successfully unlocked the bootloader yet so I assume it's not possible as of yet?I appreciate any suggestions.

bob24260 said:
I have the US version the 690Y and get the remote failed unknown command error when I do the command fastboot oem unlock.I even tried the newer fastboot oem flashing unlock.Do you have any idea how to work this out?My device is recognized in fastboot,all drivers correct but I keep getting errors.Any ideas?I haven't seen anyone post they've successfully unlocked the bootloader yet so I assume it's not possible as of yet?I appreciate any suggestions.
Click to expand...
Click to collapse
So far it doesn't seem possible on the 690Y but works on the 690M. The lack of development for this phone is sad. I would gladly pay for a root option.

There must be some way to easily unlock the bootloader since the option "OEM unlocking - Allow the bootloader to be unlockled" exists in the developer settings. What are we missing?

I have the 690M and same, I check allow OEM unlock in developer settings but then the command is not recognized.
Ideas?

Anyone managed to root lg k51?

I can't find anything definitive about whether it's rootable or not

Same here i tried every root app possible and failed.

just unlock bootloader and flash twrp
after that flash latest magisk zip hope it will work

Bhanu8082 said:
just unlock bootloader and flash twrp
after that flash latest magisk zip hope it will work
Click to expand...
Click to collapse
No need to flash TWRP: Booting into it is sufficient.

Bhanu8082 said:
just unlock bootloader and flash twrp
after that flash latest magisk zip hope it will work
Click to expand...
Click to collapse
How did you unlock the bootloader?

sCriptKittY1987 said:
How did you unlock the bootloader?
Click to expand...
Click to collapse
simple , go to about phone and try to find build number,
after you find build number tap on it until it says you are in developer mode
after that head on to developer option (it may be inside about phone section or above about phone section) turn on the option which says allow oem unlock. then,
just reboot to recovery mode either by pressing volume up or volume down key with power button.
after you enter recovery connect usb cable and open command prompt in pc and make sure that lg device drivers are installed on your pc also make sure you have adb and fastboot installed.
ok, after all this type command
adb devices
if any thing shows us then you have successfully connected your device.
after it type
adb reboot bootloader
then your mobile should restart and show fastboot mode in screen
type command
fastboot oem unlock
and done your bootloader is unlocked.

Bhanu8082 said:
just unlock bootloader and flash twrp
after that flash latest magisk zip hope it will work
Click to expand...
Click to collapse
Where did you find a tarp img for the LG k51?

sCriptKittY1987 said:
Where did you find a tarp img for the LG k51?
Click to expand...
Click to collapse
tarp image????? just follow the tutorial.

I meant TWRP recovery . After you've unlocked the bootloader where did you get a custom recovery to flash for the LG k51. From what I saw on Team Wins website, there isn't one.

Bhanu8082 said:
simple , go to about phone and try to find build number,
after you find build number tap on it until it says you are in developer mode
after that head on to developer option (it may be inside about phone section or above about phone section) turn on the option which says allow oem unlock. then,
just reboot to recovery mode either by pressing volume up or volume down key with power button.
after you enter recovery connect usb cable and open command prompt in pc and make sure that lg device drivers are installed on your pc also make sure you have adb and fastboot installed.
ok, after all this type command
adb devices
if any thing shows us then you have successfully connected your device.
after it type
adb reboot bootloader
then your mobile should restart and show fastboot mode in screen
type command
fastboot oem unlock
and done your bootloader is unlocked.
Click to expand...
Click to collapse
When I typed fastboot oem unlock I get a reply saying <waiting for any device>

sCriptKittY1987 said:
When I typed fastboot oem unlock I get a reply saying <waiting for any device>
Click to expand...
Click to collapse
I doubt that's going to work, but let me know if it does. Carriers and manufacturers use a variety of sophisticated security schemes like requiring lengthy codes that only they can provide, etc to purposely make it very difficult to unlock bootloaders. Tmobile gave me a K51 for free. They apparently feel the have to pay for it by spying on me. I bought a moto g7 plus unlocked for $117 directly from Moto and put Lineage on it, no gapps Would love to use thie k51 though if anyone figures it out because it's more waterproof and bigger battery.

mgsgta3 said:
I can't find anything definitive about whether it's rootable or not
Click to expand...
Click to collapse
Whether device's bootloader is unlockable / device's Android is root-able or not you easily can find out by means of ABB:
Code:
adb shell "getprop ro.oem_unlock_supported"
If returned value is 1, then it's supported otherwise it's not.

sCriptKittY1987 said:
Where did you find a tarp img for the LG k51?
Click to expand...
Click to collapse
and let me guess my doofus luck im guessing no way to unlock it with out a P.C. like nuttin at all?

Absolutely no of the crap above works at all in any capacity especially sprint. Generic postings like hold volume down and power also doesn't work to go into fastboot so if you guys are following the advice of some of these guys don't because you'll drop more money on a new phone then you will unlocking it some variants verizon is one I think you have to call LG I know I spent 6 hrs on the phone with "tech support" aka "jokes with a screen to read from" to FINALLY get into touch with an engineer who told me the only way "NOW" to unlocked the bootloader is in his office which means it has to be depot to be unlocked which as of this moment lg is not doing that WILL change in the future that was 12/03/2020. Even running external adb with kali linux to hack it broke the bootloader and sends you into an infinite reboot loop

jwoegerbauer said:
Whether device's bootloader is unlockable / device's Android is root-able or not you easily can find out by means of ABB:
Code:
adb shell "getprop ro.oem_unlock_supported"
If returned value is 1, then it's supported otherwise it's not.
Click to expand...
Click to collapse
This returns no value on a locked bootloader because even with Dev. Opt. Enables its still read only until bootloader is unlocked this is verified on two carriers k51's sprint and att. However it is unlockable we haven't found it and/or LG has not added this service to their site which is where you will get the info needed for the unlocked.

Oh my. You know you need to do all this from a computer, right? Can't do it in an Android terminal because fastboot commands are only valid in a phone's bootloader environment. And if you didnt know that then rooting and all of the dangers that come with it just isnt for you. But yes, it's rootable. So here you go anyway.
Reboot the phone to download mode.
Install LG's K51 usb drivers, and install adb and fastboot, on your computer.
Open a command prompt and type: fastboot oem unlock
If it does anything other than pat you on the back and tell you it's proud of you and how well you follow instructions, then go back and follow the effing instructions.
Otherwise, type: fastboot reboot.
Download magisk manager.
Do the magisk manager.
Use the LG flash tool on your computer to flash what you just did when you did the magisk manager.
And presto, you're rooted. Or I successfully left out enough info and you dont know how to use Google, leaving your device still not rooted. And thank god for that.

Ive been learning from xda for some time now. Bricked a few phones in my learning curve and tonight i had my first success with my g7, and wrighting this on my new k51. This is my first post and I think that was pretty rude of you to say. This is supposed to be a place to learn, share knowledge, and help those who are less educated. Not look down on people and say crap like that. If he wants to learn even if it takes a couple bricked phones to do it, let him. Either give him the proper procedures or dont say nothing at all. How long did it take you? How many phones? Its taking me quit a while but i am finaly getting somewhere. Keep with it guy. Dont let this dude, or any one else for that matter, bring you down.

Kenwoodquality69 said:
Ive been learning from xda for some time now. Bricked a few phones in my learning curve and tonight i had my first success with my g7, and wrighting this on my new k51. This is my first post and I think that was pretty rude of you to say. This is supposed to be a place to learn, share knowledge, and help those who are less educated. Not look down on people and say crap like that. If he wants to learn even if it takes a couple bricked phones to do it, let him. Either give him the proper procedures or dont say nothing at all. How long did it take you? How many phones? Its taking me quit a while but i am finaly getting somewhere. Keep with it guy. Dont let this dude, or any one else for that matter, bring you down.
Click to expand...
Click to collapse
Yo Ken,
So your K51 rooted?
If so, maybe you could provide a step by step?

I haven't done this yet but is it verified working? I did a google search came across the method to do the unlocking but it showed it was a failed project?

TexasPride said:
I haven't done this yet but is it verified working? I did a google search came across the method to do the unlocking but it showed it was a failed project?
Click to expand...
Click to collapse
O lord i hope this isnt true

Question Can´t access to fastboot

I am trying to unlock my nord ce 2 bootloader but everytime I try to access bootloader mode, it says something like Unlock_Verify_device ok and then reboots
how can I unlock the bootloader? Same happens on my nord 2. Oem unlocking is enabled and I have no selection of advanched startup options. I have magisk boot.img to flash

Can't say I experienced that myself. The message you got looks promising. The 'unlock_verify_device ok' message means you're getting to fastboot. But I'm not sure why it's rebooting. Do you have enough time to run the command 'fastboot devices'?
Also, what version is your firmware?
Here is the guide I used when I was unlocking the bootloader: https://www.droidwin.com/how-to-unlock-bootloader-on-oneplus-nord-ce-2/

I am running android 12 beta on oxygenos
Edit: fastboot doesn´t even find the device
Oh, now it tells that serial is not match. what's going on?

so? Can anyone help? Phone keeps saying that serial is not match and then reboots. Is this phone just a joke or something? Gonna buy samsung if yes.

What model is your phone? I wasn't aware of the Android 12 beta being available for the Nord CE 2. Another thing to try is this tutorial to manually install the OnePlus drivers: https://www.droidwin.com/fix-android-device-not-showing-in-fastboot-mode/

Was looking on the nord ce 1 xda Forum. It's only recently that a few roms and twrp are starting to appear, so there is hope. IMO oneplus need to take £$50 off the price, more users = more chance of getting more development

mr_munch said:
Can't say I experienced that myself. The message you got looks promising. The 'unlock_verify_device ok' message means you're getting to fastboot. But I'm not sure why it's rebooting. Do you have enough time to run the command 'fastboot devices'?
Also, what version is your firmware?
Here is the guide I used when I was unlocking the bootloader: https://www.droidwin.com/how-to-unlock-bootloader-on-oneplus-nord-ce-2/
Click to expand...
Click to collapse
I don't have fastboot on my device Nord ce 2 ..when I type fastboot reboot bootloader then it directly reboot into my device ..Please somebody help me.Im on current Android 12.1 version

neilop7 said:
I don't have fastboot on my device Nord ce 2 ..when I type fastboot reboot bootloader then it directly reboot into my device ..Please somebody help me.Im on current Android 12.1 version
Click to expand...
Click to collapse
Fastboot is stuffed on this device. There's no longer a way to make fastboot work.

burningcreation said:
Fastboot is stuffed on this device. There's no longer a way to make fastboot work.
Click to expand...
Click to collapse
I wanna unlock bootloader..is there any way to unlock ?

neilop7 said:
I wanna unlock bootloader..is there any way to unlock ?
Click to expand...
Click to collapse
No unfortunately.

burningcreation said:
No unfortunately.
Click to expand...
Click to collapse
Did you able to unlock bootloader?

neilop7 said:
Did you able to unlock bootloader?
Click to expand...
Click to collapse
No I am not able to unlock the bootloader either. There is currently nothing we can do.

Hi everyone, any update on this? Did someone manage to unlock the bootloader?

If I'm not mistaken. You can rollback to android 11 to get it back.

I'm currently facing the same problem, so I tried rolling back and have downloaded over 20 rollback zips now, and extracted them. All won't work, it reboots in recovery. And it is like fastboot just doesn't exist. So yeah they probably messed it up.
I'm so sad, I switched from Iphone to Oneplus partly because of the rooting options. So sad
Can I do this trough adb or not?

NiekKamer0105 said:
I'm currently facing the same problem, so I tried rolling back and have downloaded over 20 rollback zips now, and extracted them. All won't work, it reboots in recovery. And it is like fastboot just doesn't exist. So yeah they probably messed it up.
I'm so sad, I switched from Iphone to Oneplus partly because of the rooting options. So sad
Can I do this trough adb or not?
Click to expand...
Click to collapse
You don't extract it though. You just rename it by removing the _Rollback at the end.
See here: https://droidwin.com/downgrade-oneplus-nord-ce-2-from-android-12-to-android-11/

Can someone help me unlock my bootloader and root my blu M8L 2002 tablet running M0220ww firmware on android 11 please?

Ive looked for hours for a way to do this myself and i keep coming up short. Ive tried using fastboot method and it wont work. Its got a qualcomm chipset. A couple guides that i did find used using fastboot commands but they didnt work and i cant find anything else so far. The tablet is carrier unlocked to the best of my knowledge. Please guys if anyone could point me in the right direction i have no problem with doing the work i just need a nudge or even a possible solution if anyone can help. Thanks in advance for your time and attention to hear me out and for any help you could give.

ronnieshane1 said:
Ive looked for hours for a way to do this myself and i keep coming up short. Ive tried using fastboot method and it wont work. Its got a qualcomm chipset. A couple guides that i did find used using fastboot commands but they didnt work and i cant find anything else so far. The tablet is carrier unlocked to the best of my knowledge. Please guys if anyone could point me in the right direction i have no problem with doing the work i just need a nudge or even a possible solution if anyone can help. Thanks in advance for your time and attention to hear me out and for any help you could give.
Click to expand...
Click to collapse
First of all you have to mention the information about your device like device name,android version then we can help your

the_arxyn said:
First of all you have to mention the information about your device like device name,android version then we can help your
Click to expand...
Click to collapse
I thought I did when I created the post.im not used to posting on here and must have done it wrong sorry. It's a Blu M8L 2002 tablet running M0220WW firmware on Android 11. It has a Qualcomm chipset and I believe it is unlocked USA version

ronnieshane1 said:
I thought I did when I created the post.im not used to posting on here and must have done it wrong sorry. It's a Blu M8L 2002 tablet running M0220WW firmware on Android 11. It has a Qualcomm chipset and I believe it is unlocked USA version
Click to expand...
Click to collapse
Sorry my mistake not noticed in the title
You can follow this website https://www.google.com/url?sa=t&sou...oQFnoECA4QAQ&usg=AOvVaw2D0-geZL-AyAdYhvITs7nj
If it doesn't work show the error message

the_arxyn said:
Sorry my mistake not noticed in the title
You can follow this website https://www.google.com/url?sa=t&sou...oQFnoECA4QAQ&usg=AOvVaw2D0-geZL-AyAdYhvITs7nj
If it doesn't work show the error message
Click to expand...
Click to collapse
That's one of the guides that I mentioned that I tried. After using both unlock commands the response was FAILED (remote: unknown cmd.) I tried to use the fastboot OEM device-info command and got the same response

Tablet's OS is Android 11 GO, it got released 2020.
Is "OEM Unlock" option provided in Developer Settings? if so have you turned it on and afterwards rebooted the tablet?
Have you installed the Fastboot driver that's suitable to tablet?
If Fastboot returns "FAILED: (remote: unknown cmd.) " then Fastboot is obviously not supported.

the_arxyn said:
Sorry my mistake not noticed in the title
You can follow this website https://www.google.com/url?sa=t&sou...oQFnoECA4QAQ&usg=AOvVaw2D0-geZL-AyAdYhvITs7nj
If it doesn't work show the error message
Click to expand...
Click to collapse
That's one of the guides that I mentioned that I tried. After using both unlock commands the response was FAILED (remote: unknown cmd.) I tried to use the fastboot OEM device.
jwoegerbauer said:
Tablet's OS is Android 11 GO, it got released 2020.
Is "OEM Unlock" option provided in Developer Settings? if so have you turned it on and afterwards rebooted the tablet?
Have you installed the Fastboot driver that's suitable to tablet?
If Fastboot returns "FAILED: (remote: unknown cmd.) " then Fastboot is obviously not supported.
Click to expand...
Click to collapse
I realized i had my command line in the wrong place and i corrected it and now the commands are recognized but they are still failing. I do have the oem unlock option turned to unlock and im using the adb and fastboot quick setup from xda to use on my computer. I honestly cant figure out where im going wrong this time. Ive used adb and fastboot commands before. Im no expert but im not totally green either. Still thank you guys for attempting to help me out. It really is appreciated

jwoegerbauer said:
Tablet's OS is Android 11 GO, it got released 2020.
Is "OEM Unlock" option provided in Developer Settings? if so have you turned it on and afterwards rebooted the tablet?
Have you installed the Fastboot driver that's suitable to tablet?
If Fastboot returns "FAILED: (remote: unknown cmd.) " then Fastboot is obviously not supported.
Click to expand...
Click to collapse
I may have the wrong driver. As soon as i get back home ill try the one from the link you gave me and post my result. Thanks again

@ronnieshane1 Did you ever figure this out, I'm about to dive in and figured I'd see if there is an update before so?

No I finally just gave up. Sorry
Jacob_dillon said:
@ronnieshane1 Did you ever figure this out, I'm about to dive in and figured I'd see if there is an update before so?
Click to expand...
Click to collapse

Are you talking about the M8L 2022? I've unlocked the bootloader but can't get it back to recovery and its FRP locked so i can't use ADB. ugh.
Also, its a Unisoc chip I think.

You have to use a modified fastboot and get the identifier token.

r1pp3d2 said:
You have to use a modified fastboot and get the identifier token.
Click to expand...
Click to collapse
How do you do that?

Damonkg1 said:
How do you do that?
Click to expand...
Click to collapse
Look up modified fastboot for spreadrum devices. There is also a guide on hovatek forum.

For anyone and everyone who has had any trouble locating the firmware files (.pac) for the 2022 BLU M8L tablet, I FINALLY, after more than a month of searching found them on needrom.
Link is: https://www.needrom.com/download/blu-m8l-2022-m0220w/
Since idk if the link will be redacted or edited out, you can also google needrom and M0220WW

Be carefull when downloading the fireware for the M8L and pay close attention to the version your needing. From all that I gathered, there are mutiple versions...M0170WW, M0171WW, M0173WW, M0174WW, and the one I have that I have yet to find anywhere on the net. Its the most recent ..the M0176UU. If anyone happens to have this version, please make a full backup image and post it here. Thank you