How to find rx and tx
FIND OUT RX & TX BY FOLLOWING METHODS FOR CHINA MOBILES
It is tasted and also you can test it.
1 step is**** we need to find GND from phone.
2 step is**** we should power on phone (operation with dead phone:
phone must be 100% dead by software)and take multimater put it to voltage.
3 multimeter (-) line put it GND and with (+) line check each connectors
**** and usually Tx= 1.8v or 2.8v and Rx=1.7v or 2.7v
(it will be change by processor but strongly 1.7v or 2.8v not 3v or 4v)
This way is too easy and you will save a more time.
how to make universal cable
FIND OUT RX & TX BY FOLLOWING METHODS FOR CHINA MOBILES
It is tasted and also you can test it.
1 step is**** we need to find GND from phone.
2 step is**** we should power on phone (operation with dead phone:
phone must be 100% dead by software)and take multimater put it to voltage.
3 multimeter (-) line put it GND and with (+) line check each connectors
**** and usually Tx= 1.8v or 2.8v and Rx=1.7v or 2.7v
(it will be change by processor but strongly 1.7v or 2.8v not 3v or 4v)
This way is too easy and you will save a more time.
how to make universal cable