Depends on your board design. Why dont you upload some high-res photos of the PCB?
UART of BCM
- Thread starter cak7
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Af-8013south América
Af-8012india.. same board..
it only has one i2c connector
Send photos later
memoalican
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memoalican
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Someone say Custom firmware on Nand flash then will uart port open!?
but which Nand flash? I have 3 Nand flash?
U4, U14 and U15...
but which Nand flash? I have 3 Nand flash?
U4, U14 and U15...
memoalican
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I do no know where TX pin But C1 to C4 can uart open port?
if u have logic analyzer or DSO u can easy find the pin rx or tx but the if the rx disabel by loder that hard to find .
memoalican
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Hi someone have custom firmware for NANDFLASH MXICIS U4 for uart unlock?
How do you access your rx tx gnd and 3.3v pin? Is that from C1 to C4 jumper?
U15 is a RAM not a NAND flash, so you only have two NAND flash which is U4 and U14
memoalican
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I do no know but I have CH4 CHannel 4? Is uart but locked…
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memoalican
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C1 is 0 volt and C2,C3 and C4 is 6 volt but it’s not uart I think maybe?
Definitely not
What baud rate did you use?
memoalican
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Speed is buad? I think Speed was 9600... But my usb to uart cable not work more i think is Broken after connect uart. :/ because I think locked uart thats why...
Yes Baud Rate is a speed. If your USB to UART cable doesn’t work after the first connection, it did not mean that UART is locked. It actually meant that you did not connect UART pinout correctly, and that incorrect connection broke your USB to UART cable, for example, you might connect 3.3V pin to GND pin. The only solution now is to get a new USB to UART cable and double check RX TX and GND pin.
