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Patch Preloader for Mediatek MT6877

Patch Preloader for Mediatek MT6877

bapsidirka
bapsidirka
bapsidirka
Enthusiastic Member
7
27-06-2022, 12:57 PM
#1



Some Chipsets of MTK do not boot after patching lk.bin to remove Orange state text.

MTK preloader might be checking the integrity and preventing the devices from booting.

1. Is there any way to disable this integrity check?

2. Is the preloader itself protected from such modifications? If yes, then who checks the integrity of preloader?
Abdulakeem14
Abdulakeem14
Abdulakeem14
Senior Member
1,757
27-06-2022, 01:18 PM
#2
(27-06-2022, 12:57 PM)bapsidirka Some Chipsets of MTK do not boot after patching lk.bin to remove Orange state text.

MTK preloader might be checking the integrity and preventing the devices from booting.

1. Is there any way to disable this integrity check?

2. Is the preloader itself protected from such modifications? If yes, then who checks the integrity of preloader?
Did you carefully follow the method @ https://www.hovatek.com/forum/thread-31664.html ?
bapsidirka
bapsidirka
bapsidirka
Enthusiastic Member
7
27-06-2022, 03:26 PM
#3
(27-06-2022, 01:18 PM)Abdulakeem14
(27-06-2022, 12:57 PM)bapsidirka Some Chipsets of MTK do not boot after patching lk.bin to remove Orange state text.

MTK preloader might be checking the integrity and preventing the devices from booting.

1. Is there any way to disable this integrity check?

2. Is the preloader itself protected from such modifications? If yes, then who checks the integrity of preloader?
Did you carefully follow the method @ https://www.hovatek.com/forum/thread-31664.html ?

Yes, I have carefully edited the hex range for both Orange state and 5 seconds delay and tested them separately.

Any modification done to the LK stops the device from booting and directly ends in BOOTROM mode.
maxpayne
maxpayne
maxpayne
Contributor
2,873
28-06-2022, 10:18 AM
#4
(27-06-2022, 03:26 PM)bapsidirka Yes, I have carefully edited the hex range for both Orange state and 5 seconds delay and tested them separately.

Any modification done to the LK stops the device from booting and directly ends in BOOTROM mode.

Has bootloader been unlocked and rooted?
bapsidirka
bapsidirka
bapsidirka
Enthusiastic Member
7
28-06-2022, 01:27 PM
#5



(28-06-2022, 10:18 AM)maxpayne
(27-06-2022, 03:26 PM)bapsidirka Yes, I have carefully edited the hex range for both Orange state and 5 seconds delay and tested them separately.

Any modification done to the LK stops the device from booting and directly ends in BOOTROM mode.

Has bootloader been unlocked and rooted?

Yes, BL unlocked, I can see Orange state warning text.
maxpayne
maxpayne
maxpayne
Contributor
2,873
02-07-2022, 10:48 AM
#6
(28-06-2022, 01:27 PM)bapsidirka Yes, BL unlocked, I can see Orange state warning text.

Some models don't support this. Have you disabled dm verity?
bapsidirka
bapsidirka
bapsidirka
Enthusiastic Member
7
08-07-2022, 01:04 PM
#7
(02-07-2022, 10:48 AM)maxpayne
(28-06-2022, 01:27 PM)bapsidirka Yes, BL unlocked, I can see Orange state warning text.

Some models don't support this. Have you disabled dm verity?

Yes, dm-verity is disabled. But the device stops booting if LK.bin is modified.

Is there any way to solve this by patching the preloader?

Something like this:

https://pythonawesome.com/a-python-scrip...lk-images/
maxpayne
maxpayne
maxpayne
Contributor
2,873
11-07-2022, 02:26 PM
#8
(08-07-2022, 01:04 PM)bapsidirka Yes, dm-verity is disabled. But the device stops booting if LK.bin is modified.

Is there any way to solve this by patching the preloader?

Something like this:

Its worth looking into if you can find a fork of the repo
oakieville
oakieville
oakieville
Newbie
1
30-09-2022, 04:45 PM
#9
(02-07-2022, 10:48 AM)maxpayne
(28-06-2022, 01:27 PM)bapsidirka Yes, BL unlocked, I can see Orange state warning text.

Some models don't support this. Have you disabled dm verity?

did you find a way around this
kelvinchinedu
kelvinchinedu
kelvinchinedu
Contributor
1,302
02-10-2022, 05:39 PM
#10



Maybe u remove orange state and 5 seconds at the same time.

Next time pls make sure u edit it correctly without passing and code .save first after editing orange state,and reopen again and properly Edith your device will boot in 5 seconds.and save and flash using sp
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