Need Urgnt Help From Chinese Phone Experts
 

Hai Frnds,
Im Having One Chines Phone Model:nokia 5300i.
Itsa Mtk Cpu.
There Is No Tx,rx And Grnd Mentioned In The Board!!!

The Pin Out Socket Is 2x6..

I Just Read Out The Volt From All Those 12 Pins...as In This Ordr..

Pin1=0.0v
Pin2=0.41v
Pin3=0v
Pin4=0.22v
Pin5=1.69v
Pin6=5.40v
Pin7=0.23v
Pin8=1.76v
Pin9=0.21v
Pin10=1.29v
Pin11=5.40v
Pin12=2.93v
..i Want To Clarify Wer S The Grnd?

I Assume Tht Wth In Pin 5,8,10&12..there Must Be Tx And Rx!!!

Could Anyone Give Me The Clear Idea For Me..so Tht I Can Proceed From This Step...

I Need The Pin Out Of Grnd,tx And Rx For This Phone...plssssss..
Having 3 Numbrs Wth The Same Restart In Sim Card Problm...

Anxiously Waitng For The Valuable Reply..
Thnks In Advance

Gnd pin on phone connector is pin connected to PCB Gnd.


Here is detailed intruction for you:

Currently many "Chinese" models with the same name but absolutely different hardware exist on market,
f.e. exist at least 20 phones with name "Chinese Nokia-N95" but with different
bottom connectors and different pinouts, so we recommend you to include the next information in your question regarding pinout:
1. detailed description of model: brand name, model name, complete text from phone back label, any other marks that you can find on phone cover
2. phone CPU chip name
3. phone PCB photo (Rx/Tx/Gnd test-points may exist on phone PCB)
4. attach phone photo
5. attach phone bottom connector photo
6. include information about Gnd and Charge pins on phone bottom connector
After you have this information prepared, you can find pinout by yourself more easy than before,
just check the next detailed description how to get pinout for your model:
1. use "Cable Selector": http://forum.gsmhosting.com/vbb/showthread.php?t=398297
2. if not helps, please read: C:\Program Files\InfinityBox\pinout\ChineseMiracle\
3. if not helps, please read: http:///vbb/showpo...36&postcount=7
4. if not helps, please read: http:///vbb/showthread.php?t=433447

you can take the gnd from any - pin in the phone
you can test it with the - battery connector
but for the tx rx u need to test it

hello koolfriend4u!

have you checked this document?
there is step by step description regarding pin voltage measuring method:
http:///vbb/showthread.php?t=433447