That's right - Bootcardmaker writes the u-boot.bin from the 0 sector into a non-partitioned area on the SD card and creates a new partition table + formats it in FAT32. You do not have to copy the u-boot.bin to the FAT partition. Plug the mSD into the box, short-circuit the eMMC pins 29-30 and switch the box on. After 2 sec. let go of the pins. In this case, the processor ROM BL1 searches for the BL2 from the 0 sector on the mSD card
Please see the attached file log 768 mhz
Read here -> Method 3
This is the wrong bootloader that you installed earlier. The new u-boot initializes the RAM at 768Mhz
Dear sir
I have triad the method3
when i press on make with selected bin file, it formats the card in fat32 and then shows success.
but sd card shows empty, then i copied the provided bin file manually on sd card. & booted the box with sd card, with recovery button pressed,
but no benefit, it still initializing on 720mhz.... may be it's not booting through SDcard....
was also trying to install KII_Pro_lpddr3_2g_4335_6255_Pie rom through putty ssh method (by searching online)
but struck at IP address (do not know the tv box's ip address, port is 22, to enter in putty for connection)
In present scenario i don't think that i can make this box alive, again...
REgards,
bin
Small bootloader update for Samsung LP memory..
1. Extract the *.7z file and burn the u-boot.bin to the mSD card. Use Amlogic BootcardMaker for this.
2 Now start the box with the inserted mSD card and post the uart log.
Do not know how to burn bin file to sd card, amlogic bootcardmaker requires .img file to burn on SD...
but i burned image provided by bumerc to sd card and tried to install it by pressing recovery button @ bottom of the board.
and putty log for same has been attached..
Failed to install the rom provided by bumerc (by nand pin short method)
attaching logs and screen shots for information
Please guide me further........
yes
Has bumerc sent you a firmware link yet?
yes sir i received it. and will let you know the result, after install.....
Okay, now I see that this bootloader isn't good, because it's made for a 2x1GB memory layout version and your version is 1x2GB.
Only LPDDR and its clock are correct, but the allocation is not.
Which firmware was last tried?
Is this status based on what I sent earlier (#2), or did it happen after the image sent by [user='2458']bumerc[/use
last installed image was yours, sir
what is the solution now...
Dear Dtech sir
today i have successfully searched and installed the driver properly (ttl adapter) (and today putty also worked)
connected (cable)
grd to grd
tx to rx
rx to tx
connected adapter, when powered on some random no. flashed in putty again and again, not stopping,
numbers stopped when i switched off the power...
attaching log file and images for your reference.......
Please guide me further
Regards,
Display MoreI see two mistakes on your photos:
- The 3.3V pin of the device is never connected, especially not for the 5V pin on the TTL adapter side.
This pin is only used to power the TTL adapter, but it is actually already gets it from the USB port.
However, it can be dangerous for the device if 5V is applied to pin 3.3V of the UART.
(See illustration in post #6 -> the 3.3V pin is not connected.)
Solution: Please desolder the red wire from the KII Pro.
- The Windows driver installed for the device is not compatible. (See the yellow triangle.)
There are a lot of fake Prolific TTL adapter ICs that are not supported by the official driver.
Solution: You must install the driver recommended by your seller, or if it does not exist, you must request one.But, if the IC is a real one, the exact type is also important. Please download the PL2303 CheckChipVersion tool and check your chip ID.
For example, mine is:
Dear dtech sir
will check, and let you know the results,
3.3v pin soldered in box, but not connected to uart adapter and yes, you are right i am in search of driver, before i was getting error of
" driver phased out for windows 10" then i used drivers old version, but still it is showing triangle icon in devise manger.
I have an ATV9 version for this device (experimental), but it works fine. I will send you the download link later by PM.
It looks like you created a short between TX and GND, check this out. Furthermore.. run a driver search in the device manager..
ok will check and retry,
please pm me the link
Dear dtech
TTL adapter arranged and i have tried some thing after searching internet, but did not worked for me...
Dear dtech sir
Hope it is clear, in the below pictures, if not let me know, i will click it again....
Regards,
thanks chewitt sir ,
for replying ,
i understood nothing,
Please tell me what can i try or do next to get the box working again...
currently i am arranging ttl adapter as suggested by dtech sir....
Regards,
let me arrange soldering iron and ttl adapter
below image will work.....
Dear sir
i do not have micro comp. level knowledge
if any guide is here or supporting tutorial i can follow it step by step
to check what happened to my box..
or solve the issue.....
my box has no desplay on tv, changed hdmi also, it does not goes in to recovery mode when lover button pressed through pin, triad sd card burning method, it also does not worked for me.
only pin shorting method is working, it' detect the box, and shows flashing successful, but still no desplay on TV / box does not boots only blue light lits up when powered on.
Stock ROM for KII Pro devices based on S905D SoC:
thanks buddy, will try it & let you know the results....
please suggest flashing method also, to use... 
Help Required - android TV box is dead after flashing wrong
MEcool KII Pro s905d 2gb version Purchase in 2020
By mistake or lack of knowledge, I have flashed wrong rom, from then it is not booting on, only blue light is there, no desplay on screen, when powered on.
After that flashed different stock rom .img files from PC using USB, by pin shorting method.
USB tool shows flash is successful, but still there is no desplay, only blue light
Please suggest what can be done to get it working....
see attachment for more detail....
ROM
