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Hovatek Forum MOBILE Android [Please help] Help, how can i fix bricked preloader on MT6572?

[Please help] Help, how can i fix bricked preloader on MT6572?

[Please help] Help, how can i fix bricked preloader on MT6572?

Intelinsidecomputer
Intelinsidecomputer
Intelinsidecomputer
Techie Member
47
02-12-2024, 06:01 PM
#1



Hello, i tried to make the CWM recovery using droid tools and the backup but when flashed the phone would be stuck on Boot Logo.
Then i asked for firmware, the Doro SupportĀ  sent me this file:
[ Login to download]

When i tried to flash it, SP Flash Tools starter to give 5054 but after using firmware update it flashed. It only flashed several partitons before giving error 1012 or something like that. After pulling the battery out and putting again, it started to give error 4032 and then i realised preloader was BRICKED!!

So how can i fix this little guy?

The device in question is Doro Liberto 820 mini.
If you have any questions please ask.
kelvinchinedu
kelvinchinedu
kelvinchinedu
Contributor
1,491
03-12-2024, 05:35 AM
#2
First flash only preloader.bin by ticking only preloaded
Then u can flash all partitions by ticking or and avoid tkv and transf if u have it ,
Pls if I must do download+ format make sure u have a backup of nvram ,persist and nvdata
Intelinsidecomputer
Intelinsidecomputer
Intelinsidecomputer
Techie Member
47
03-12-2024, 06:14 AM
#3
(03-12-2024, 05:35 AM)kelvinchinedu First flash only preloader.bin by ticking only preloaded
Then u can flash all partitions by ticking or and avoid tkv and transf if u have it ,
Pls if I must do download+ format make sure u have a backup of nvram ,persist and nvdata

Okay, first i can't with flash SP Flash Tools, i get 4032 error, second the device has MT6572, so there is no nvram, persist.
What tools could i use to try to reflash preloader? And how can i boot to BROM?
Device has 7 Hardware buttons.
justshez
justshez
justshez
Intern
2,363
03-12-2024, 05:23 PM
#4
(03-12-2024, 06:14 AM)Intelinsidecomputer
(03-12-2024, 05:35 AM)kelvinchinedu First flash only preloader.bin by ticking only preloaded
Then u can flash all partitions by ticking or and avoid tkv and transf if u have it ,
Pls if I must do download+ format make sure u have a backup of nvram ,persist and nvdata

Okay, first i can't with flash SP Flash Tools, i get 4032 error, second the device has MT6572, so there is no nvram, persist.
What tools could i use to try to reflash preloader? And how can i boot to BROM?
Device has 7 Hardware buttons.
Upload a screenshot of the error you are getting on SP Flash Tool

Note!
We have a reply schedule for Free Support. Please upgrade to Private Support if you can't wait.
Intelinsidecomputer
Intelinsidecomputer
Intelinsidecomputer
Techie Member
47
05-12-2024, 06:41 AM
#5



(03-12-2024, 05:23 PM)justshez
(03-12-2024, 06:14 AM)Intelinsidecomputer
(03-12-2024, 05:35 AM)kelvinchinedu First flash only preloader.bin by ticking only preloaded
Then u can flash all partitions by ticking or and avoid tkv and transf if u have it ,
Pls if I must do download+ format make sure u have a backup of nvram ,persist and nvdata

Okay, first i can't with flash SP Flash Tools, i get 4032 error, second the device has MT6572, so there is no nvram, persist.
What tools could i use to try to reflash preloader? And how can i boot to BROM?
Device has 7 Hardware buttons.
Upload a screenshot of the error you are getting on SP Flash Tool

Okay, but why just error codes aren't enough?
justshez
justshez
justshez
Intern
2,363
09-12-2024, 07:10 AM
#6
(05-12-2024, 06:41 AM)Intelinsidecomputer
(03-12-2024, 05:23 PM)justshez
(03-12-2024, 06:14 AM)Intelinsidecomputer
(03-12-2024, 05:35 AM)kelvinchinedu First flash only preloader.bin by ticking only preloaded
Then u can flash all partitions by ticking or and avoid tkv and transf if u have it ,
Pls if I must do download+ format make sure u have a backup of nvram ,persist and nvdata

Okay, first i can't with flash SP Flash Tools, i get 4032 error, second the device has MT6572, so there is no nvram, persist.
What tools could i use to try to reflash preloader? And how can i boot to BROM?
Device has 7 Hardware buttons.
Upload a screenshot of the error you are getting on SP Flash Tool

Okay, but why just error codes aren't enough?
Reach out to doro support again, there is a possibility the firmware is not the correct one for your device.

You can also try using miracle box loader or thunder version, but first create a firmware backup using the guide @ https://www.hovatek.com/forum/thread-13347.html
then flash @ https://www.hovatek.com/forum/thread-14106.html

Note!
We have a reply schedule for Free Support. Please upgrade to Private Support if you can't wait.
Intelinsidecomputer
Intelinsidecomputer
Intelinsidecomputer
Techie Member
47
10-12-2024, 08:21 PM
#7
(09-12-2024, 07:10 AM)justshez
(05-12-2024, 06:41 AM)Intelinsidecomputer
(03-12-2024, 05:23 PM)justshez
(03-12-2024, 06:14 AM)Intelinsidecomputer
(03-12-2024, 05:35 AM)kelvinchinedu First flash only preloader.bin by ticking only preloaded
Then u can flash all partitions by ticking or and avoid tkv and transf if u have it ,
Pls if I must do download+ format make sure u have a backup of nvram ,persist and nvdata

Okay, first i can't with flash SP Flash Tools, i get 4032 error, second the device has MT6572, so there is no nvram, persist.
What tools could i use to try to reflash preloader? And how can i boot to BROM?
Device has 7 Hardware buttons.
Upload a screenshot of the error you are getting on SP Flash Tool

Okay, but why just error codes aren't enough?
Reach out to doro support again, there is a possibility the firmware is not the correct one for your device.

You can also try using miracle box loader or thunder version, but first create a firmware backup using the guide @ https://www.hovatek.com/forum/thread-13347.html
then flash @ https://www.hovatek.com/forum/thread-14106.html
Nevermind, it seems when formating everything and flashing with holding + button before pressing download button it flashes successfully and now boots, now working on building TWRP for him.
I can tell you the progress if you want.
justshez
justshez
justshez
Intern
2,363
11-12-2024, 10:09 PM
#8
(10-12-2024, 08:21 PM)Intelinsidecomputer
(09-12-2024, 07:10 AM)justshez
(05-12-2024, 06:41 AM)Intelinsidecomputer
(03-12-2024, 05:23 PM)justshez
(03-12-2024, 06:14 AM)Intelinsidecomputer Okay, first i can't with flash SP Flash Tools, i get 4032 error, second the device has MT6572, so there is no nvram, persist.
What tools could i use to try to reflash preloader? And how can i boot to BROM?
Device has 7 Hardware buttons.
Upload a screenshot of the error you are getting on SP Flash Tool

Okay, but why just error codes aren't enough?
Reach out to doro support again, there is a possibility the firmware is not the correct one for your device.

You can also try using miracle box loader or thunder version, but first create a firmware backup using the guide @ https://www.hovatek.com/forum/thread-13347.html
then flash @ https://www.hovatek.com/forum/thread-14106.html
Nevermind, it seems when formating everything and flashing with holding + button before pressing download button it flashes successfully and now boots, now working on building TWRP for him.
I can tell you the progress if you want.
Great to hear your phone's working well! Feel free to start a new thread to share your TWRP build progress.

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