[sixstails0075]

Sir, i really need help about this oppo r831k after SUCCESS flashing w/ SP FLASH TOOL  the result is when i power it on no display and long vibrate, how many months the phone still in my hand, i tried defferent flashing tool and firmware the result is same. when i google search its needs a CM2 but i dnt have a box, theres a crack but i cant access it.

[EMMANUS]

Have you tried charging the battery for some hours?
What was the problem before you flashed it the first time?
How many firmwares have you tried?

[X3non]

Sir, i really need help about this oppo r831k after SUCCESS flashing w/ SP FLASH TOOL  the result is when i power it on no display and long vibrate, how many months the phone still in my hand, i tried defferent flashing tool and firmware the result is same. when i google search its needs a CM2 but i dnt have a box, theres a crack but i cant access it.

answer @emmanus questions
and did you by any chance take note of the build number of the phone before flashing it?

[sixstails0075]

sir the phone is already in boot loop then when i flashing it a firmware from flashfile it is success but same only stock oppo logo displayed, i try to flash anotheer firmware it is always success but when i power it on only a long vibrate no display until now i still reflashing the unit using defferent tools i want to flash it using cm2 but i dont have cm2 tool.

[hovatek]

sir the phone is already in boot loop then when i flashing it a firmware from flashfile it is success but same only stock oppo logo displayed, i try to flash anotheer firmware it is always success but when i power it on only a long vibrate no display until now i still reflashing the unit using defferent tools i want to flash it using cm2 but i dont have cm2 tool.

its not about the tool you flash with here but about the firmware you're flashing and whether or not the phone has hardware issues

[sixstails0075]

Thank you so much for the brilliant idea, its always comes out of my mind that there is a short on the board, but when i google it it is almost all software issue , i try to clean the board now but i still ask how is the proper way of cleaning and shorting the board..
Thanks More POWER

[X3non]

Thank you so much for the brilliant idea, its always comes out of my mind that there is a short on the board, but when i google it it is almost all software issue , i try to clean the board now but i still ask how is the proper way of cleaning and shorting the board..
Thanks More POWER

before you jump to conclusion of hardware, how many ROMs have you tried?
did you try all the rom builds listed at https://www.hovatek.com/forum/thread-9271.html

[sixstails0075]

thank you sir, i think i already flash 7 or 8 r831k roms unfortunately no logs save, the result still the same.

[xerxes]

thank you sir, i think i already flash 7 or 8 r831k roms unfortunately no logs save, the result still the same.

it might be a hardware related .
have you tried factory resetting the phone via recovery mode after flashing the firmware that hangs on bootlogo?

[EMMANUS]

How many of the ROMs you have flashed behave differently. State how each behaves.

Also note that first boot after flashing takes longer than normal.