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09-19-2010, 02:07
| #2 (permalink) |
| Freak Poster  Join Date: Jan 2009
Posts: 380
Member: 950629 Status: Offline Thanks Meter: 105 | Disassemble the phone and check PCB for the RX TX points.. If you not found a RX TX on PCB you have to check voltages on USB connecter for find the RX,TX. check this example. Explain to find pinout on 12 pin usb connector. 1. At first, you need to find GND signal (3pin-00.2v) 2. The second step: you need to find Tx Rx signals. Choose the pinouts, that may probably suit. You have 12 pinouts: 1pin-0.00v - this pinout is wrong 2pin-2.78 - it may correspond to Tx Rx signals 3pin-00.2v - GND signal 4pin-2.75v - it may correspond to Tx Rx signals 5pin-1.09v - LOOKS LIKE Tx Rx signals, BUT IT IS NOT! 6pin-0.00v - this pinout is wrong 7pin-4.02v - this pinout is wrong 8pin-2.89v - it may correspond to Tx Rx signals 9pin-3.05v - this pinout is wrong 10pin-0.00v - this pinout is wrong 11pin-1.09v - it may correspond to Tx Rx signals 12pin-0.02v - YOU DON'T NEED these fake signals with high and low voltage 3. In order to find Tx you need to put multimeter to test, diod ( "+" and "-" = beep ). When the phone is POWERED ON, Tx with GND make a sound beep. When it is TURNED OFF, it shows 600-700 ohm. It is suggested to do all the job using wire connection. After following the above mentioned steps you'll find, that 2pin is Tx and 8pin is Rx. Tx has to be 1.7v or 2.7v and Rx - 1.8v or 2.8v. These characteristics may change depending on the processor parameters. But Tx and Rx is not the same. Tx can be 2.78v, 2.75v, 2.7v. INFO:@Gsmtricks |
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| The Following User Says Thank You to mswmkm For This Useful Post: |
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09-19-2010, 11:30
| #3 (permalink) | |
| Product Supporter  Join Date: May 2005 Location: uae
Posts: 29,245
Member: 148515 Status: Offline Thanks Meter: 19,534 | Quote:
hello! please post connector type. are you sure that this is mt62xx MCU based phone? tip: you can check this by typing *#0044# and pressing green (send) button. if you will see "language set: english"- you can be sure, that this phone is supported by Infintiy software | |
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09-21-2010, 13:39
| #4 (permalink) | |
| Freak Poster Join Date: Sep 2007
Posts: 185
Member: 596130 Status: Offline Thanks Meter: 15 | Quote:
connector type is l10c | |
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09-23-2010, 06:42
| #8 (permalink) | |
| Freak Poster Join Date: Sep 2007
Posts: 185
Member: 596130 Status: Offline Thanks Meter: 15 | Quote:
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