Oragoog wrote:

What is the reason for the second reflash of preloader?

serg2327 wrote:

Oragoog wrote:

What is the reason for the second reflash of preloader?

The version I posted for the first revision is not official! based on android_9 from the second revision, I just adapted the software for the first revision, that's all!
I don’t impose my software on anyone, they might like to have android_9 on the bv9600 of the first revisions. I managed to do this and I described the installation instructions and also posted the adapted firmware.
I don’t intend to explain the action from my instructions. It is extremely difficult for me to do this because I don’t know English. If you know Russian, write me in qms and I will explain why!!
But I think that the main result and not why everything needs to be done this way and not otherwise ... if you find a simpler method for installing software for the first revisions(and so that everything works), I think everyone will be happy about it

serg2327 wrote:

quick installation guide for android_9 on bv9600Pro / revision_1 (helio P60):

download software: https://mega.nz/#!5Y8FyKLS!o6t3colH9_4ieauO_4_tN9NtsDB4G8zBF-c1FdhmtnQ
install using SP_Flash_Tool in "firmware / upgrade" mode ( necessarily mode select "firmware / upgrade" otherwise you’ll lose nvram)
after installing the software, disconnect the cable from the smartphone but do not turn it on
in SP_Flash_Tool we charge "MT6771_Android_scatter.txt" which is located in the "Fix_start" folder (this folder is in the root of the main folder)
Flashing the "preloader" block in the normal "Download Only" mode
Only after that we turn on the smartphone and rejoice android_9, on which everything works on helio P60/revision_1
The only inconvenience awaits you is the red characters in the upper corner of the screen
To remove them you need to unlock the bootloader! After unlocking, the hieroglyphs will disappear automatically!
If you do not understand what I wrote, then do nothing with your smartphone! all actions are strictly at your own peril and risk!
Источник:  http://4pda.ru/forum/index.php?s=&showt ... p=87760766

It’s difficult for me to write instructions for unlocking the bootloader, so I don’t even dare to do it! .. but the instruction is standard for android_9, you can peek at any topic on xda

serg2327 wrote:

quick installation guide for android_9 on bv9600Pro / revision_1 (helio P60):

download software: https://mega.nz/#!5Y8FyKLS!o6t3colH9_4ieauO_4_tN9NtsDB4G8zBF-c1FdhmtnQ
install using SP_Flash_Tool in "firmware / upgrade" mode ( necessarily mode select "firmware / upgrade" otherwise you’ll lose nvram)
after installing the software, disconnect the cable from the smartphone but do not turn it on
in SP_Flash_Tool we charge "MT6771_Android_scatter.txt" which is located in the "Fix_start" folder (this folder is in the root of the main folder)
Flashing the "preloader" block in the normal "Download Only" mode
Only after that we turn on the smartphone and rejoice android_9, on which everything works on helio P60/revision_1
The only inconvenience awaits you is the red characters in the upper corner of the screen
To remove them you need to unlock the bootloader! After unlocking, the hieroglyphs will disappear automatically!
If you do not understand what I wrote, then do nothing with your smartphone! all actions are strictly at your own peril and risk!
Источник:  http://4pda.ru/forum/index.php?s=&showt ... p=87760766

It’s difficult for me to write instructions for unlocking the bootloader, so I don’t even dare to do it! .. but the instruction is standard for android_9, you can peek at any topic on xda