Database Develop

v21: Root/Unlocked Bootloader + TWRP?

Hi! When I got my R1 HD, I wanted to get Lineage OS and TWRP. I tried everything including:
adb "fastboot oem unlock",
SP Flash Tool, and
DirtyCow R1-HD Tool,
yet I found no luck. Does anybody know how to get an unlocked bootloader and TWRP on an R1 HD v21? Thanks!:good:
P.S:
My "Custom build version" is:
BLU_R0011UU_V21_GENERIC. Also, this is not the Amazon Prime variant, however I got this from Amazon (for example: I get no ads).

Sorry to tell you, but version 21 of the ROM cannot be bootloader unlocked or rooted. The more recent updates have secured the phone so that none of the previous methods you mention work anymore. The phone is no longer being manufactured and Blu does not provide a process for unlocking the bootloader as some other companies, like Motorola, do. So even though you paid more to get the no ad version, you can't root it. 8-( This was only possible in the earlier versions of both the amaon and non-amazon models.

yaconsult said:
Sorry to tell you, but version 21 of the ROM cannot be bootloader unlocked or rooted. The more recent updates have secured the phone so that none of the previous methods you mention work anymore. The phone is no longer being manufactured and Blu does not provide a process for unlocking the bootloader as some other companies, like Motorola, do. So even though you paid more to get the no ad version, you can't root it. 8-( This was only possible in the earlier versions of both the amazon and non-amazon models.
Click to expand...
Click to collapse
So, can I revert back to an earlier version of the ROM where it is possible to unlock the bootloader?

PastThePixels said:
So, can I revert back to an earlier version of the ROM where it is possible to unlock the bootloader?
Click to expand...
Click to collapse
no, the signed updates are incremental so, the checksum verification will pervent flashing old version

OK.... What's the best thing to do now?
I found this option in my updater that says "Local updates". Maybe this can help?

PastThePixels said:
OK.... What's the best thing to do now?
I found this option in my updater that says "Local updates". Maybe this can help?
Click to expand...
Click to collapse
No, sorry - there is no known way to root or flash modified software after the phone has been upgraded with factory software. You can't go back. And, even if you could, it wouldn't help - it still couldn't be rooted or flash a modified ROM. Blu does not offer to unlock bootloaders the way some companies, like Motorola, do. Your phone is stuck with what you have now.
The best thing to do now? Enjoy your cheap android phone with great performance for the price!

yaconsult said:
No, sorry - there is no known way to root or flash modified software after the phone has been upgraded with factory software. You can't go back. And, even if you could, it wouldn't help - it still couldn't be rooted or flash a modified ROM. Blu does not offer to unlock bootloaders the way some companies, like Motorola, do. Your phone is stuck with what you have now.
The best thing to do now? Enjoy your cheap android phone with great performance for the price!
Click to expand...
Click to collapse
Well, is there at least a way to skin the phone (ex: change bootanimation, remove bloatware (Yes, there is still bloatware apps, and I'm talking REMOVE the apps, no uninstall for user only), remove the Adups spyware) so that it is just like stock Android?

PastThePixels said:
Well, is there at least a way to skin the phone (ex: change bootanimation, remove bloatware (Yes, there is still bloatware apps, and I'm talking REMOVE the apps, no uninstall for user only), remove the Adups spyware) so that it is just like stock Android?
Click to expand...
Click to collapse
No - all those things require root, which you can't get. Only the phones that were shipped with earlier versions of the ROM and hadn't been updated over-the-air could be unlocked and rooted.

Related. I have an 8GB phone; Custom build:
BLU_R0010UU_V8.7_GENERIC 05-08-2017
I've been trying to install TWRP (and then Lineage) but I'm having zero luck with SPFlash. I've tried on a couple of computers and followed the directions step by step. Am I missing something here?
Thanks,
Edit: yep, saw in another thread anything above 8.1.
Imma email Blu and see if they'll loosen the restrictions if they're stopping development. Can't hurt at this point.

Using Apps such as Samsung Pass after failed root attempt?

Hey guys,
so I tried to root my S10+ which did not work out. I never got past unlocking my bootloader. Now I flashed an original Samsung Stock Firmware and I relocked the bootlader. But now when I tried to use Samsung Pass for instance it told me, that I couldn't use it since my device was rooted, which it wasn't and isn't.
Do you guys know a way around this or am I doomed?
Regards

thomas333 said:
Hey guys,
so I tried to root my S10+ which did not work out. I never got past unlocking my bootloader. Now I flashed an original Samsung Stock Firmware and I relocked the bootlader. But now when I tried to use Samsung Pass for instance it told me, that I couldn't use it since my device was rooted, which it wasn't and isn't.
Do you guys know a way around this or am I doomed?
Regards
Click to expand...
Click to collapse
You need to check knox in download mode. Anything other than 0x0 will break Samsung pay, secure folder, and Samsung pass. Nothing you can do if you tripped knox.
After doing OEM unlock in developer options, did you confirm in the menu right before entering download mode?

Galaxy Tab A 8.0 2018 SM-T387V OEM Unlock

Heya,
I just recently got a hold of this tablet a few days ago and looked for a OEM unlock switch, which obviously wasn't there, both because it's a Verizon variant, and because it's a snapdragon variant. I've been researching for awhile and found combo files to unlock the OEM switch for this model, but everybody seems to get this model confused for some reason. I tried flashing one using odin and got a SW REV check failed [Boot]Fused 2 > Binary 1. I'm guessing I need to downgrade this tablet back down to android 8 since I updated it to android 9. Before I do that, I want to see if flashing the old firmware will be a waste of time or not and to see if there is a combo file or ENG boot file I can flash to get OEM or at least root unlocked. Something to get rid of all this Verizon bloatware and get rid of the Verizon boot animation with just a stock one. Hope I get a decently fast response.

Dclay2005 said:
Heya,
I just recently got a hold of this tablet a few days ago and looked for a OEM unlock switch, which obviously wasn't there, both because it's a Verizon variant, and because it's a snapdragon variant. I've been researching for awhile and found combo files to unlock the OEM switch for this model, but everybody seems to get this model confused for some reason. I tried flashing one using odin and got a SW REV check failed [Boot]Fused 2 > Binary 1. I'm guessing I need to downgrade this tablet back down to android 8 since I updated it to android 9. Before I do that, I want to see if flashing the old firmware will be a waste of time or not and to see if there is a combo file or ENG boot file I can flash to get OEM or at least root unlocked. Something to get rid of all this Verizon bloatware and get rid of the Verizon boot animation with just a stock one. Hope I get a decently fast response.
Click to expand...
Click to collapse
theres not really any support for that tablet.. u can flash combo but so ur aware its not possible to downgrade.. u need a newer combo firmware that is same rev as the firmware ur on..
there is no eng firmware from what i can tell.

I've found several sites that have the firmware I need, but they're all locked behind a paywall. They're only like, $3 but I don't feel like entering my card info on these sites. Might just bite the bullet and get me a throwaway card. My baseband version is T387VVRU2BTB2. REV0.4. maybe somebody can find one for free out there. If not, I'll probably just pay the $3 and stop being stingy with my money.

Dclay2005 said:
I've found several sites that have the firmware I need, but they're all locked behind a paywall. They're only like, $3 but I don't feel like entering my card info on these sites. Might just bite the bullet and get me a throwaway card. My baseband version is T387VVRU2BTB2. REV0.4. maybe somebody can find one for free out there. If not, I'll probably just pay the $3 and stop being stingy with my money.
Click to expand...
Click to collapse
I'm also looking for some firmware to possibly bypass FRP on my SM-T387V. Did you end up fbuying the firmware? Did it work?

I have a sm-t307u and while not the same device I'm unable to flash combo files due to a new token security measure. So, no OEM Unlock, no bootloader unlock, and no combo flashing in ODIN.

Unofficial unlock bootloader Redmi 4x

Hello, I wanted to ask if there are any options to unlock the bootloader on redmi 4x in an unofficial way?
if you can give a link
Forgive me if something is not clear to you, I am just Russian myself and it is not easy for me to write in English

Yes, there is way but i could not find that link it was on MIUI forum, probably it is removed.
However you may try searching some method on YouTube, there is some possibility that there is might be some video still available.
Have you tried unlocking official way?

Hi there, I'm here asking the same question. Is there any way to unlock xiaomi 4x without permission in xiaomi account?

Sorry for bumping this old thread, but the problem is still relevant even today.
Does anyone know something about this unofficial unlocking method? I couldn't find it anywhere and the official methods didn't work for me, since I can't get past SIM activation for the account.

i looking for unofficial unlock to my phone is locked on prev owner email ( he sell it as parts bcs his screen has broken) and now he don't remember or want to give me his password to unlock it

loonbgg said:
i looking for unofficial unlock to my phone is locked on prev owner email ( he sell it as parts bcs his screen has broken) and now he don't remember or want to give me his password to unlock it
Click to expand...
Click to collapse
I think you have mistaken unlocking the bootloader for unlocking the phone for access. What you want is more easily achievable, you can simply flash the stock rom using edl mode. There are plenty of tutorials for that if you search for these terms.

unluckyuser said:
I think you have mistaken unlocking the bootloader for unlocking the phone for access. What you want is more easily achievable, you can simply flash the stock rom using edl mode. There are plenty of tutorials for that if you search for these terms.
Click to expand...
Click to collapse
yes i have stock rome and i can use it .. the problem is that i stuck at adnroid 7 forever

loonbgg said:
yes i have stock rome and i can use it .. the problem is that i stuck at adnroid 7 forever
Click to expand...
Click to collapse
In that case, you need to do it in 2 steps. First, flash the stock rom using edl mode, so you can access the system without needing the original owner's email. Then you register a new account for you and do the official bootloader unlocking procedures. I hope it works for you, because I'm still stuck without being able to register my sim card for the official unlocking method.

Question Help, i did something stupid.

Hello
Hoping somebody can help getting my phone up and running again.
I wanted to unroot my phone, because i was having issues with danish "MitId". And was a bit sloppy with it.
First i tried using SuperSU to remove root. Because i didnt feel like setting everything up again. Didnt work.
Then I locked the OEM Lock in developer settings. Not thinking this would be a fatal error.
Got home from work, and said to myself. Jusk lock the bootloader and the phone will reset itself.
But this is not the case, when you have been stupid enough to lock the OEM lock.
Now I am stuck on "No valid operating system could be found. The device will not boot"
I can get in to fastboot by pushning power+vol down. But cannot flash anything since the phone thinks the OEM Lock is locked on it.
Does anyone know of a solution for me. Or is it going to the shop tommorow and say that my phone is going this. And hope they will sort it for me?

Can't you fix stuff by using https://flash.android.com/ ?

No, unfortuantly not. It fails:
Device Unlock Disabled​For security reasons, you need to enable "OEM unlocking" in order to flash your device. See the device preparation instructions for more information.

Pearsondk said:
No, unfortuantly not. It fails:
Device Unlock Disabled​For security reasons, you need to enable "OEM unlocking" in order to flash your device. See the device preparation instructions for more information.
Click to expand...
Click to collapse
Try sideloading the full OTA. You don't need an unlocked bootloader for that.

Unfortuatly not, if I try to enter recovery mode. The phone just goes back to the screen saying "No valid operating system could be found. The device will not boot"
ADB is not available to me

If you can't sideload the OTA, I'm afraid there is not much else you can do with a locked bootloader except try to RMA it.

Can you get into recovery at all. Even if it's the stock you can attempt a sideload of the stock OTA.zip from Google. You may also try if your on boot slot A
fastboot --set-active=b
On b use
fastboot --set-active=a
Try to see if the other boot slot has an a bootable OS.
*****I apologize I just saw it's actually still locked****"
Contact U-break I-fix if I typed that correctly. The third party warranty repair center for Google's warranty. I believe they can attempt to switch the boot slot with a locked bootloader with the equipment they use to reflash these devices. If anything it's under warranty get the RMA and if the bootloader is locked on it trade someone or sell it and use it to make buying a new cheaper..

JovialQuestion said:
Can you get into recovery at all. Even if it's the stock you can attempt a sideload of the stock OTA.zip from Google. You may also try if your on boot slot A
fastboot --set-active=b
On b use
fastboot --set-active=a
Try to see if the other boot slot has an a bootable OS.
Click to expand...
Click to collapse
No, I can get into fastboot and that is it.
But everything I try in fastboot gets rejected, since it says the phone is locked.

Does the bootloader screen on the phone have the option to boot into Rescue. This has a ADB connection but I am not sure if adb sideload works

Really mad that Google intentionally locks phones this way, turning them into completely functional, but useless piece of junk. I guess that's late stage capitalism for you xD

JovialQuestion said:
Does the bootloader screen on the phone have the option to boot into Rescue. This has a ADB connection but I am not sure if adb sideload works. Use the volume keys and power button to select it
Click to expand...
Click to collapse
Kofa1 said:
Really mad that Google intentionally locks phones this way, turning them into completely functional, but useless piece of junk. I guess that's late stage capitalism for you xD
Click to expand...
Click to collapse
Google is not responsible for phone's with locked bootloaders. They make the device with the specifications the carrier that sells it stipulates. Google themselves allows the unlock.

Lughnasadh said:
If you can't sideload the OTA, I'm afraid there is not much else you can do with a locked bootloader except try to RMA it.
Click to expand...
Click to collapse
Iam guessing the same. Phone doesnt want to do anything.
And since i cant get into the phone to oem lock i am stuck. Live in Denmark, so by law I havnt voided the warrenty by rooting.

Pixel warranty is always valid even if you unlock and root. Google doesn't void the warranty. Go to Google pixel support page. Find warranty and act as if your submitting a RMA and it will tell you after you enter the device IMEI how long your warranty is valid for

Delete

If that were true. Android flash tool https://flash.android.com/welcome
Would work as it's the same process for the browser to flash the very same file. Motorola allowed signed factory img on locked. Google had never allowed that in fastboot as far as I am aware

DroidRommer said:
All you need to do is go here Factory pixel firmwares and scroll down to pixel 7 panther assuming you're not on the pro (cheetah)
-select the latest version for your model whether that's Verizon or whatever if you have the carrier unlocked one like myself just choose the Feb firmware that doesn't have a carrier name at the end of the firmware number (you should have your phone plugged into your PC and in fastboot mode) click flash and follow the steps. These are Googles factory images so it doesn't matter if your bootloader is unlocked or not as long as you choose the latest version and the correct version for your phone. Tbh you can't really brick the pixel 7 as long as you have a PC and are able to put the phone in fastboot mode (holding the volume down and power button while powering on)
-Anytime you run into some kind of bootloop issue or wanna get rid of root flashing the stock firmware from this website will factory reset and revert your phone to the way it was the very first time it was pulled out of the box and powered on. If you have already tried this and you know forsure you did everything correctly then I must admit I have never had this happen and I'm someone who flashes custom roms and goes back to stock to get the latest security update just to turn around and flash another custom rom right after lol. If you need any help or advice feel free to pm me whenever. I have been rooting phones for a long time and have to say that the Google pixel is by far the most user friendly phone I've ever owned when it comes to custom rooms, rooting etc. You can ALWAYS go back as long as you know what steps to take. Sorry for the rant especially if you already figured it out.
Happy Customizing!
DROIDROMMER
Click to expand...
Click to collapse
Their bootloader is locked. You cannot flash a factory image like that with a locked bootloader. They also turned off OEM Unlocking in the developer settings. If they had left this enabled they would be able to use Android Flash Tool as that tool will unlock your bootloader if OEM Unlocking is enabled.

Kofa1 said:
Really mad that Google intentionally locks phones this way, turning them into completely functional, but useless piece of junk. I guess that's late stage capitalism for you xD
Click to expand...
Click to collapse
This wouldn't be Google, they basically encourage you too unlock the bootloader and root if you want as they give you all the tools you need and factory firmware options to go back if you make a mistake. Tbh if you are able to unlock and root the phone to start then you can go back. Even with a locked bootloader you can always flash the latest factory image on googles dev website, you just can't downgrade firmware or install different carrier firmware without the unlocked bootloader. If we really wanna poke at some phone developers I vote Samsung as I have had multiple people ask me to root their phones and if it's a US snapdragon version it cannot be done its so frustrating lol thanks for letting me vent, have a great day if you have the the carrier unlocked dev edition of the pixel 7 and ever need any help feel free to pm me. I have been rooting and romming pixels for a long time
Edit: I was not aware you couldn't flash the stock firmare using googles dev page without oem unlock. I apologize for jumping to conclusions. I thought I had every possible bad scenario happen to me by now but apparently I learned something new today.

DroidRommer said:
This wouldn't be Google, they basically encourage you too unlock the bootloader and root if you want as they give you all the tools you need and factory firmware options to go back if you make a mistake. Tbh if you are able to unlock and root the phone to start then you can go back. Even with a locked bootloader you can always flash the latest factory image on googles dev website, you just can't downgrade firmware or install different carrier firmware without the unlocked bootloader. If we really wanna poke at some phone developers I vote Samsung as I have had multiple people ask me to root their phones and if it's a US snapdragon version it cannot be done its so frustrating lol thanks for letting me vent, have a great day if you have the the carrier unlocked dev edition of the pixel 7 and ever need any help feel free to pm me. I have been rooting and romming pixels for a long time
Click to expand...
Click to collapse
Dude. You cannot flash factory images of any kind on any Google phone with the bootloader in locked status. Please stop giving false information on here. If you want to talk up Samsung do it on a Samsung post. Let's not confuse everyone please

DroidRommer said:
Even with a locked bootloader you can always flash the latest factory image on googles dev website, you just can't downgrade firmware or install different carrier firmware without the unlocked bootloader.
Click to expand...
Click to collapse
To use Android Flash Tool, you have to have OEM Unlocking enabled in Developer Options for it to be able to unlock the bootloader.
To flash the factory image in fastboot you must have an unlocked bootloader.

Lughnasadh said:
Their bootloader is locked. You cannot flash a factory image like that with a locked bootloader. They also turned off OEM Unlocking in the developer settings. If they had left this enabled they would be able to use Android Flash Tool as that tool will unlock your bootloader if OEM Unlocking is enabled.
Click to expand...
Click to collapse
Okay my bad you are right fortunately I have never had this happen. And like someone else said if he can't get into recovery then he can't sideload a factory ota... sorry I'm at a loss on this one. Some custom roms use "fastboot update file.zip" would that do anything in this case or would that command not even work with a locked bootloader I'm assuming. I apologize for trying to act like a know it all I've just never heard of this happening