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

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

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

Messages In This Thread
How to unlock and relock Android bootloader with fastboot - by hovatek - 26-07-2017, 02:47 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by sparleta - 06-04-2018, 03:58 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by freshtyt - 06-04-2018, 10:27 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by slichy - 21-04-2018, 10:49 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 23-04-2018, 09:28 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hellera - 20-03-2021, 04:00 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Robal Hossain RH - 13-02-2022, 03:38 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 14-02-2022, 12:16 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by paeffiong - 24-04-2018, 09:10 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by arip jumaing - 17-06-2018, 04:38 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Muhanad Samaty - 03-07-2018, 04:36 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 03-07-2018, 10:31 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by belinda1093 - 09-07-2018, 09:42 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 10-07-2018, 11:16 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Dafi11 - 24-08-2018, 02:52 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by xerxes - 24-08-2018, 03:59 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by freshtyt - 24-08-2018, 04:34 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Dafi11 - 24-08-2018, 07:37 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by maxpayne - 24-08-2018, 08:57 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Dafi11 - 25-08-2018, 01:33 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 25-08-2018, 08:45 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Falkentyne - 16-09-2018, 08:06 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 17-09-2018, 04:50 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Falkentyne - 17-09-2018, 04:59 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by ismail tabl - 22-04-2019, 10:22 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 23-04-2019, 09:22 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by angelmic - 01-06-2019, 08:23 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 02-06-2019, 09:41 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by awed730 - 16-09-2020, 12:26 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 16-09-2020, 12:11 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by stick420 - 18-11-2020, 05:12 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 19-11-2020, 12:52 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 21-03-2021, 02:32 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by suji - 10-05-2021, 03:35 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by maxpayne - 10-05-2021, 06:00 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by suji - 10-05-2021, 06:54 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 10-05-2021, 12:46 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by jijay - 15-05-2021, 11:48 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 17-05-2021, 12:55 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by nyyra - 10-09-2021, 08:09 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 11-09-2021, 11:45 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Trunks614 - 29-09-2021, 09:56 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 30-09-2021, 10:12 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by javelinv12 - 04-10-2021, 10:37 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by suji - 15-10-2021, 06:18 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by X3non - 05-10-2021, 11:28 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by javelinv12 - 06-10-2021, 04:29 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by maxpayne - 30-12-2021, 09:18 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by bangier24 - 01-02-2022, 02:52 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 05-02-2022, 06:52 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by suartex - 18-05-2022, 04:53 PM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by hovatek - 21-05-2022, 08:27 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by thedanh - 26-05-2023, 07:09 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by Gargoyle - 26-05-2023, 07:49 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by thedanh - 26-05-2023, 11:06 AM
RE: How to unlock the Bootloader of an Android phone via Fastboot - by maxpayne - 30-05-2023, 08:16 AM
Nokia XR20 Qualcomm fastboot failed to decrypt - by alegatorul - 08-07-2023, 06:25 PM
RE: Nokia XR20 Qualcomm fastboot failed to decrypt - by hovatek - 13-07-2023, 12:10 PM
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