How to root/unlock bootloader vivo Y81i?
How to root/unlock bootloader vivo Y81i?
06-06-2019, 07:16 AM
1. It has secured boot enabled so I can't use sp flash tool method. I tried DA file and auth file of Y81 but those only
work in sp flash tool v5.1804 which does not support mt6761 (I modified mt6761 to mt6763 in scatter file to trick,
my phone was dead for 10 minutes
)2. mtk-su does not work.
3. I contacted vivo support they said bootloader can't be unlocked.
06-06-2019, 07:23 AM
Edit: that method does not work. I still get DA selection error.
This post was last modified: 06-06-2019, 07:52 AM by Mukhlesur Rahman Millon.
06-06-2019, 11:29 AM
(06-06-2019, 07:23 AM)Mukhlesur Rahman Millon oh, I have got a reply for lib DA file mismatch. didn't notice it before posting this question.
Edit: that method does not work. I still get DA selection error.
the said DA file loads fine without errors on v5.1904
attach full screenshot of SP flash tool and the error message
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06-06-2019, 11:31 AM
(06-06-2019, 07:16 AM)Mukhlesur Rahman Millon 1. It has secured boot enabled so I can't use sp flash tool method. I tried DA file and auth file of Y81 but those onlyYou will need the DA for your phone's exact model.
work in sp flash tool v5.1804 which does not support mt6761 (I modified mt6761 to mt6763 in scatter file to trick,
my phone was dead for 10 minutes
2. mtk-su does not work.
3. I contacted vivo support they said bootloader can't be unlocked.
Have you tried using the Y81i DA on miracle box?
Sent from my TECNO P904 using Tapatalk
06-06-2019, 11:41 AM
(06-06-2019, 07:56 AM)Mukhlesur Rahman Millon It is strange that I don't get any notification. I didn't change any settings.
check, you should get notification on the replies you receive on this thread you created
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06-06-2019, 01:01 PM
(06-06-2019, 11:29 AM)X3non(06-06-2019, 07:23 AM)Mukhlesur Rahman Millon oh, I have got a reply for lib DA file mismatch. didn't notice it before posting this question.
Edit: that method does not work. I still get DA selection error.
the said DA file loads fine without errors on v5.1904
attach full screenshot of SP flash tool and the error message
I have unticked on "check LIB DA match", now I can load DA file of Y81 in v5.1904.
I have attached the log and screenshots.
Attached Files
06-06-2019, 01:06 PM
(06-06-2019, 11:31 AM)innagee(06-06-2019, 07:16 AM)Mukhlesur Rahman Millon 1. It has secured boot enabled so I can't use sp flash tool method. I tried DA file and auth file of Y81 but those onlyYou will need the DA for your phone's exact model.
work in sp flash tool v5.1804 which does not support mt6761 (I modified mt6761 to mt6763 in scatter file to trick,
my phone was dead for 10 minutes
2. mtk-su does not work.
3. I contacted vivo support they said bootloader can't be unlocked.
Have you tried using the Y81i DA on miracle box?
Sent from my TECNO P904 using Tapatalk
unfortunately, I don't have any DA file for my Y81i. I have downloaded "Setup_Miracle_Thunder_Edition_2.93", it doesn't start on my windows 10.
06-06-2019, 10:17 PM
(06-06-2019, 01:01 PM)Mukhlesur Rahman Millon I have unticked on "check LIB DA match", now I can load DA file of Y81 in v5.1904.
I have attached the log and screenshots.
seems you get this da selection error after clicking the download button not before
try a different SP flash tool version, you can try latest 5.1916 @ https://www.hovatek.com/forum/thread-13970.html
you can also try flashing using a different PC, lets know the outcome of both
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06-06-2019, 10:24 PM
(06-06-2019, 01:06 PM)Mukhlesur Rahman Millon unfortunately, I don't have any DA file for my Y81i. I have downloaded "Setup_Miracle_Thunder_Edition_2.93", it doesn't start on my windows 10.
i believe you're trying out DA file for Y81 on Y81i, should work for your model but no guarantees
this won't work without the hardware dongle, you could try v2.82 @ https://www.hovatek.com/forum/thread-15700.html
load the DA file into miracle using the guide @ https://www.hovatek.com/forum/thread-23733.html
without exiting miracle tool, flash firmware using the guide @ https://www.hovatek.com/forum/thread-14106.html
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