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[Development] How to unlock and relock Android bootloader with fastboot

[Development] How to unlock and relock Android bootloader with fastboot

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X3non
X3non
X3non
Recognized Contributor
22,062
30-09-2021, 10:12 AM
#41



(29-09-2021, 09:56 AM)Trunks614 Nothing comes up when I run command "fastboot devices". When I run command "adb reboot-bootloader" my phone simply switches off. I've also tried manually booting into bootloader through recovery mode, but the device also switches off. Please what could be wrong?
(Gionee A1 lite)

already replied to @ https://www.hovatek.com/forum/thread-402...#pid219537
javelinv12
javelinv12
javelinv12
Enthusiastic Member
8
04-10-2021, 10:37 PM
#42
hello hovatek team. i Have a BLU phone with android 5.1 that i want to upgrade to 6.0. I found on internet a guy who explains how to do it, but for some reason he says that after the bootloader is unlocked, it enters into bootloop.

Then, he says we must flash the official firmware.

question is, flashing stock rom does not re-locks bootloader?
X3non
X3non
X3non
Recognized Contributor
22,062
05-10-2021, 11:28 AM
#43
(04-10-2021, 10:37 PM)javelinv12 hello hovatek team. i Have a BLU phone with android 5.1 that i want to upgrade to 6.0. I found on internet a guy who explains how to do it, but for some reason he says that after the bootloader is unlocked, it enters into bootloop.

Then, he says we must flash the official firmware.

question is, flashing stock rom does not re-locks bootloader?

unless the person gave a specific process to follow, e.g on a mediatek device, erasing or overwriting seccfg partition relock the bootloader
so if you flash firmware without formatting or overwriting seccfg then bootloader will remain unlocked
javelinv12
javelinv12
javelinv12
Enthusiastic Member
8
06-10-2021, 04:29 PM
#44
(05-10-2021, 11:28 AM)X3non
(04-10-2021, 10:37 PM)javelinv12 hello hovatek team. i Have a BLU phone with android 5.1 that i want to upgrade to 6.0. I found on internet a guy who explains how to do it, but for some reason he says that after the bootloader is unlocked, it enters into bootloop.

Then, he says we must flash the official firmware.

question is, flashing stock rom does not re-locks bootloader?

unless the person gave a specific process to follow, e.g on a mediatek device, erasing or overwriting seccfg partition relock the bootloader
so if you flash firmware without formatting or overwriting seccfg then bootloader will remain unlocked

Ok, i will keep that in mind when flashing stock rom. Thank you ery much
suji
suji
suji
Junior Member
29
15-10-2021, 06:18 AM
#45



(04-10-2021, 10:37 PM)javelinv12 hello hovatek team. i Have a BLU phone with android 5.1 that i want to upgrade to 6.0. I found on internet a guy who explains how to do it, but for some reason he says that after the bootloader is unlocked, it enters into bootloop.

Then, he says we must flash the official firmware.

question is, flashing stock rom does not re-locks bootloader?

If you have root access or custom recovery installed, then download the latest rom, extract it and flash its boot and system image through recovery.
maxpayne
maxpayne
maxpayne
Contributor
2,873
30-12-2021, 09:18 AM
#46
Thanks!
bangier24
bangier24
bangier24
Newbie
1
01-02-2022, 02:52 PM
#47
(30-12-2021, 09:18 AM)maxpayne Thanks!


hi, im using advan nasa 5202 series, i try the guide from the 1st page, and it ended with this, how to resolve this? everything i use comand in the 1st page always failed
This post was last modified: 01-02-2022, 02:53 PM by bangier24.
Attached Files
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Size: 37.16 KB / Downloads: 5
hovatek
hovatek
hovatek
Administrator
49,570
05-02-2022, 06:52 AM
#48
(01-02-2022, 02:52 PM)bangier24 hi, im using advan nasa 5202 series, i try the guide from the 1st page, and it ended with this, how to resolve this? everything i use comand in the 1st page always failed

This method won't work for your model. See https://www.hovatek.com/forum/thread-32287.html

Note!
We have a reply schedule for Free Support. Please upgrade to Private Support if you can't wait.
13-02-2022, 03:38 PM
#49
SC9863A
what SC9863A on....
android 9 
spd device SC9863AS
Attached Files
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Screenshot 2022-02-13 200743.png
Size: 237.29 KB / Downloads: 2
hovatek
hovatek
hovatek
Administrator
49,570
14-02-2022, 12:16 PM
#50



(13-02-2022, 03:38 PM)Robal Hossain RH SC9863A
what SC9863A on....
android 9 
spd device SC9863AS

See https://www.hovatek.com/forum/thread-32287.html

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We have a reply schedule for Free Support. Please upgrade to Private Support if you can't wait.
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