How To Find Rx Tx Signal In China Mobiles Easy Way

Find Rx .Tx Signal Easy

HOW TO FIND RX .TX SIGNALS

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.


For example!


You have got new brand China miracle phone with USB cable. It has got


12 pin. You must find (Infinity team give good Idea 1.2.3 punkts):


1) GND usually it has got 2 GND. (now we have got 10 pins)


2) We will uncheck USB + and USB- (VSS) just with checking by USB cable (now we have 8 pins)


3) By USB cable we also uncheck V bat+* ac adaptor + polarization (now we have 7 pins)


4) Now from this 7 pins you will find 1 or 3 not used pins (last operation we have 3 or 6 pins to find Rx Tx signals)


5) Now at last operation you should use good multimeter just to find Rx Tx with 1.7v-2.7v or 1.8v-2.8v


6) WHEN PHONE IS POWERD OFF TX AND GND WITH MULTIMETER MAKING BEEEEEP


(DIOD TEST OPERATION)* WHEN PHONE POWERED ON IT WILL SHOW LIKE DIOD


RESISTANS 600-700 OHM BETWIN TX AND GND.


I think I have give for every body more information’s. Just try to


find. If you find 2-3 phone signals and you will be professional mobile Tx and Rx signals finder.