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Need Help: device Meizu M8, bootloop and no recovery mode with locked bootloader

Need Help: device Meizu M8, bootloop and no recovery mode with locked bootloader

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X3non
X3non
X3non
Recognized Contributor
22,062
17-06-2021, 10:48 AM
#21



(16-06-2021, 12:47 PM)papapipizola ...the error is invalid gpt.
What do you think, is there still ways to fix it without take out the emcp then write it with ufi box or jtag?

No, either a write to emmc as you mentioned above or replace emmc if damaged
papapipizola
papapipizola
papapipizola
Junior Member
15
17-06-2021, 11:39 AM
#22
I think the protection in meizu is different with other manufacturer.
If compared with PCs, write emmc with box or jtag is liked clone your hard drive with the ability to change the partition size. While flash, just like update or patch the existing.
If I format the memory with SP Flash Tool, then write the file with it. The mechanism in preloader will block the device to boot.
At https://forum.gsmhosting.com/vbb/f979/me...e-2092313/, to unbricked it must be flash twice.
1st is with the engineering firmware and after that flash again with the production firmware.
And it uses additional tool, testpctool and flash tool uses the multidownload.
X3non
X3non
X3non
Recognized Contributor
22,062
18-06-2021, 10:24 AM
#23
(17-06-2021, 11:39 AM)papapipizola I think the protection in meizu is different with other manufacturer.
If compared with PCs, write emmc with box or jtag is liked clone your hard drive with the ability to change the partition size. While flash, just like update or patch the existing.
If I format the memory with SP Flash Tool, then write the file with it. The mechanism in preloader will block the device to boot.
At https://forum.gsmhosting.com/vbb/f979/me...e-2092313/, to unbricked it must be flash twice.
1st is with the engineering firmware and after that flash again with the production firmware.
And it uses additional tool, testpctool and flash tool uses the multidownload.

there's nothing referring to STATUS_INVALID_GPT error in the link in your post above, the link only refers to secure boot and without the right DA , the OP needed a different tool
papapipizola
papapipizola
papapipizola
Junior Member
15
18-06-2021, 02:14 PM
#24
Leaked Meizu document of M86, https://www.scribd.com/document/33464616...he-Rom-M86.
Leaked document of M88, https://www.tembelpanci.com/2020/02/meiz...guide.html, https://www.tembelpanci.com/2020/02/meiz...guide.html
For every model, they use different DA and modified MD flash tool.
Status_invalid_gpt might be related with the protection from preloader, because they use softdog.
As I know, softdog is use to estricting unauthorised execution of programs by using dedicated hardware and reset the timer in kernel.
X3non
X3non
X3non
Recognized Contributor
22,062
19-06-2021, 12:36 PM
#25



(18-06-2021, 02:14 PM)papapipizola Leaked Meizu document of M86, https://www.scribd.com/document/33464616...he-Rom-M86.
Leaked document of M88, https://www.tembelpanci.com/2020/02/meiz...guide.html, https://www.tembelpanci.com/2020/02/meiz...guide.html
For every model, they use different DA and modified MD flash tool.
Status_invalid_gpt might be related with the protection from preloader, because they use softdog.
As I know, softdog is use to estricting unauthorised execution of programs by using dedicated hardware and reset the timer in kernel.

STATUS_INVALID_GPT doesn't refer to DA or preloader rather the emmc, refer to https://www.hovatek.com/forum/thread-439.html
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