Ok I guys I can appreciate this sort of question comes up a lot but I was wondering what is the latest way to unlock the bootloader?
Since I have had my Z2 for about 6 months I have been running on Stock + Rooted 4.4.4 on a Locked Bootloader. Recently I tried Lollipop but tethering was not working and now I have the itch to unlock my devices bootloader, the last device I did this on was my Nexus 7 2013 tablet.
I have just installed my device drivers and I have my platform-tools folder setup so the Windows console recognises adb and fastboot (can't remember if there is a command for flashtool needed or not?).
So, apart from not remembering whether or not I should have a console command for flashtool (pretty sure you use fastboot flash don't you?), what is the latest way to unlock the Z2 bootloader?
I want to play around a bit and flash some of the CM based roms.
EDIT: I asked about relock in case I ever need to relock it, I already backed up my ta partition months ago.
Thanks
http://forum.xda-developers.com/showthread.php?t=2775411
read first thread of this very Q&A forum.....
I received my phone a couple days ago and got tired of waiting for the confirmation text so I did it the unofficial way. I now have permission to access the official unlock tool, which is great.
Can I just run the official unlock over my unofficial unlock for less issues? What are the correct steps to transition from "unofficial" to "official"?
Thank you.
Brick your phone by flashing official rom, then unlock bootloader from fastboot. If that fails use the fastboot to EDL tool and flash china dev rom
hey everyone. trying to OEM unlock the TWRP bootloader. When I type "fastboot OEM unlock" it will reboot into TWRP bootloader, and nothing unlocks. I know this because when I type "fastboot oem device-info" it says "unlocked FALSE".
I have OEM unlock and USB debugging enabled.
This is a phone with previously successfully installed CM13, and now I'm trying to revert to stock/unrooted. I can't seem to flash the recovery at all here because I can't get the damn thing to unlock.
Any ideas?
Did you lock the bootloader ? If your flashing Roms and custom recoverys imagine its already unlocked. Bootloader won't lock itself. If you want full stock just flash any OS2 firmware with twrp. You can worry about stock recovery after. I would just leave the bootloader unlocked won't hurt anything.
I had the same issue not long ago. Finally, i used the mega unbrick guide, but warning, all the data is lost
Ps: Sorry for bad english
hey, thanks for the response. I have been following the following tutorial (and others similar for installing CM13):
(great, website won't let me post it here... it's the unlockr oneplus x guide)
so yes, I originally flashed the stock recovery and replaced it with the one from the tutorial. There were a few hiccups during setup, which may have affected why I can't easily update nightly now, so now I'm trying to revert to the unrooted stock state so I can try from scratch, hopefully fixing the issues I'm seeing now. The problem is that I can't flash the recovery using the stock recovery... I can't even update the damn recovery because it's locked. Is this what is meant by a 'soft brick' ?
I see tons of people complaining that the Mi Unlock fails at 50%. I had that too, but solved it (somewhat) after downloading and using a newer version of the Mi Unlock (version 2.3).
Although I get past the 50% mark, the Mi Unlock program fails after verifying phone. [I tried to put a picture of the result below but XDA bars me from this practice until after I have submitted 10 posts.] Since XDA bans me from posting a picture of the result, I will try to verbally illustrate:
The Mi Unlock process runs the entire course - 100% - and then gives me green check mark and says, "Verified". The next step the Mi Unlock program takes is to unlock the bootloader. However it is at this step the process fails. Instead of unlocking, I get a message saying "Couldn't Unlock." Under those words is the following message, "After 72 hours of trying to unlock this device".
Anyone even know what that is supposed to mean? Is that just chinglish? Or better still, how can I get my device unlocked?
I SEE TONS OF PEOPLE WITH THIS SAME PROBLEM! Anyone have any idea what is going wrong? How do I deal with it? Am I to assume the message is suggesting we wait that particular number of hours before we can make the thing unlock the bootloader? Anyone? This IS a question that plagues many in the MIUI forum! And after going back roughly 70 pages into the forum, I see no solution; no answers! Just the same complaint over and over again and again.
I tried the unlocker a few times afterward, over the course of the day, with the same result. However curiously, there is one change to the message. It now says, "After 63 hours of trying to unlock this device". Is this suggesting I have to wait and try it in 63 hours?
Again, I see this same complaint time and time again on the MIUI forum for this phone. Anyone have any idea how to handle this dilemma?
One last question: How do I change out my MIUI ROM (currently MIUI 8.6.8.18 Beta) to a developer ROM? Ultimately I want to install a custom RR Rom or some other custom ROM. But MIUI 8.6.8.18 is android 5.0 LL; and the new Custom ROMs available are using android 7.0. My understanding is I need at least an MIUI Dev Rom with android 6.0 MM on the phone before it will let me leap over to some other Custom ROM with android 7.0. [I tried it. And though everything worked perfectly, (got my device rooted, and installed ZCX TWRP, etc.), it just bootlooped after flashing in TWRP. I tried it with several Custom ROMs - Always with the same bootloop. After exhaustive reading in web forums, the suggestion out there seems to be that I have to go back and install a DEV Rom with android 6.0 MM; then free the bootloader again, reinstall SuperSU (or similar), and then TWRP, etc. , and finally I will be able to Flash to one of the new Custom Rom's that uses Android 7.0.]
With this objective in mind, I downloaded the Dev Rom to my phone (7.7.20 - which is the latest for this phone). However, the UPDATER app on the phone won't update from the MIUI 8.6.8.18 Beta to the MIUI 7.7.20 Global Dev Rom. I select it in the updater by browsing over to it, then click "OK", but nothing happens. Instead of installing the MIUI 7.7 Dev Rom, the app just says that there are no updates...
Any ideas? Thanks
Unlock fails
Hi,
did you find a solution to your unlock problem. I have exactly the same problem and found only lots of solution for other problem with unlock.
Oliver
Now the process of unlocking bootloader is quick.
I deleted my MI account & created a new one. So, applied for permissions again & unlocked in 5 mins after approval.
VaibhavKumar07 said:
Now the process of unlocking bootloader is quick.
I deleted my MI account & created a new one. So, applied for permissions again & unlocked in 5 mins after approval.
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Please can you provide the exact steps you have taken?
IMHO this would help users like me who did follow the instructions to unlock the bootloader and run into this problem.
I did run into the problem, "After 72 hours of trying to unlock this device", even that I followed the instructions:
Create a Mi acoount (with my phone nr.)
Apply for unlocking, with giving reason
wait for confirmation sms
download unlocking tool
on the phone: activate dev options, switch on usb debugging, OEM unlocking and bind phone to Mi account in "Mi Unlock Status"
reboot phone in fastboot mode
run Mi Unlock prog on PC and log in
when prompted connect phone
The Mi unlocking tool stopped after verifying (green hock) at "Unlocking" with a red cross and show then "After 72 hours of trying to unlock this device".
I do not see where I went wrong...
IMHO this is a f***ed up process of unlocking the bootloader and Xiaomi should work on this.
I haven't read the post, but you don't need to unlock bootloader to root or flash custom roms
asakurato said:
I haven't read the post, but you don't need to unlock bootloader to root or flash custom roms
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Click to collapse
Hi,
As far as I know unfortunately if you want to install a custom rom you need to replace the Xiaomi recovery with a custom one, like twrp. In order to do that you need to unlock the bootloader first. Then you can flash the custom recovery with the command "fastboot flash recovery twrp-x.x.x-x-mido.img" for the Redmi Note 4 SD for example.
tinaeire said:
Hi,
As far as I know unfortunately if you want to install a custom rom you need to replace the Xiaomi recovery with a custom one, like twrp. In order to do that you need to unlock the bootloader first. Then you can flash the custom recovery with the command "fastboot flash recovery twrp-x.x.x-x-mido.img" for the Redmi Note 4 SD for example.
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I haven't unlocked bootloader, have custom recovery (Red Wolf) and Android 8.1 installed (Nitrogen OS). Can show screenshot from cmd that bootloader is locked.
asakurato said:
I haven't unlocked bootloader, have custom recovery (Red Wolf) and Android 8.1 installed (Nitrogen OS). Can show screenshot from cmd that bootloader is locked.
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Click to collapse
how? Any link to steps? I have currently resurrection remix 5.7.4 with OFFICIALLY unlocked bootloader, but it's useless because all new ROMs require new firmware and I don't have anymore access to my Xiaomi account which had granted bootloader permission, would like to move from marshmallow to Oreo, but that would require flashing me MIUI, relock bootloader and I will get stuck there and don't wanna apply anymore for official unlock, it's PITA
Forget all of this follow https://forum.xda-developers.com/redmi-note-3/how-to/kate-guide-install-lineage-os-locked-t3546154
And Apply ur brains, it will work as smooth as it needs to be.
evansourav said:
Forget all of this follow https://forum.xda-developers.com/redmi-note-3/how-to/kate-guide-install-lineage-os-locked-t3546154
And Apply ur brains, it will work as smooth as it needs to be.
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Click to collapse
Yeah, this one. Tbh, this needs to be pinned, it's often buried under other posts so people don't know how to do it.
Hi
I unlock my note 3 bootloader by officially few days back and flashed twrp to install custom rom. Today I try to install miui 9 in same method I used to install custom rom but my phone is dead now and the bootloader is unlocked again. So i went to unlock tool and try to unlock it again but it shows I can't unlock it before 30 days. Now what should I do how will I fix this. This is my only phone ? please help me
Flash a fastboot rom in EDL mode to restore it to working order.
Once the rom is installed properly and you have the same account details as before on the device, you should be able to unlock the same device without waiting 30 days.
The update to MIUI 9 probably locked the bootloader again.
ok, let me make 1 person very happy before new years. this dude looks like he needs a quick fix before new years. here it is.
[this will temporarly unlocked your bootloader, everything you need is in this file]
https://drive.google.com/open?id=1vEM1bB1KhdzWkM9skVBkYphQeTzClbBH
[original video i downloaded the file from follow step by step]
https://www.youtube.com/watch?v=f6s_Nl3UFz4
happy new year!
That's why i never unlocked my bootloader. I am a noob too