HOW TO FIND [RX and TX] _ So Easy_in Your Phone New ! - GSM-Forum

The_Dj · 11-27-2008, 19:37

HOW TO FIND [RX and TX]

1.we need to find GND from phone.
2.we should power on phone (operation with dead phone:
phone must be 100% dead by software)and take multimater put it to voltage.
3.The 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 profi mobile Tx and Rx signals finder.

Tested 100% by .:: The_Dj ::.

Credits to Mizu2008

gsm2start · 11-27-2008, 19:45

thank you bro for sharing

and many thanks to infinty team too coz its already uploaded with infinity decometation long time ago

regards

shehab

Raskalito · 11-27-2008, 19:45

Tested the_dj
excelent

RIYANA TELECOM · 11-27-2008, 20:05

Nice working bro.
keep it up...................

khadim100 · 11-27-2008, 21:14

good helpfull tricks to find rx tx pinouts for china mobiles. thanks for share.

The_Dj · 11-28-2008, 16:42

ok..

is very easy..find rx and tx...
only need MULTIMETER good.

inifnity box...rulzzz

11-27-2008, 19:37	#1 (permalink)
The_Dj No Life Poster Join Date: Sep 2005 Location: ๑۩۞۩&& Posts: 1,219 Member: 178790 Status: Offline Sonork: 100.1593063 Thanks Meter: 1,234	HOW TO FIND [RX and TX] _ So Easy_in Your Phone New ! HOW TO FIND [RX and TX] 1.we need to find GND from phone. 2.we should power on phone (operation with dead phone: phone must be 100% dead by software)and take multimater put it to voltage. 3.The 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 profi mobile Tx and Rx signals finder. Tested 100% by .:: The_Dj ::. Credits to Mizu2008

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11-27-2008, 19:45	#2 (permalink)
gsm2start No Life Poster Join Date: Nov 2008 Location: Riyadh, KSA Age: 43 Posts: 1,365 Member: 894719 Status: Offline Sonork: 100.1580092 Thanks Meter: 905	thank you bro for sharing and many thanks to infinty team too coz its already uploaded with infinity decometation long time ago regards shehab

11-27-2008, 19:45	#3 (permalink)
Raskalito Freak Poster Join Date: Jul 2007 Location: UnLoCkGsM-Bogota Posts: 266 Member: 543296 Status: Offline Sonork: 1653004 Thanks Meter: 44	Tested the_dj excelent

11-27-2008, 20:05	#4 (permalink)
RIYANA TELECOM Freak Poster Join Date: May 2007 Location: rome.italy Age: 40 Posts: 229 Member: 518336 Status: Offline Sonork: 100.1580492 Thanks Meter: 166	Nice working bro. keep it up...................

11-27-2008, 21:14	#5 (permalink)
khadim100 No Life Poster Join Date: Feb 2004 Age: 49 Posts: 1,995 Member: 52828 Status: Offline Sonork: KHADIM100 Thanks Meter: 1,212	good helpfull tricks to find rx tx pinouts for china mobiles. thanks for share.

11-28-2008, 16:42	#6 (permalink)
The_Dj No Life Poster Join Date: Sep 2005 Location: ๑۩۞۩&& Posts: 1,219 Member: 178790 Status: Offline Sonork: 100.1593063 Thanks Meter: 1,234	ok.. is very easy..find rx and tx... only need MULTIMETER good. inifnity box...rulzzz