I change PA ,,change RxTx switch ,,reflow PCB ,,but phone lost Tx ,,Rx is OK but have sign ! before net name on screen ,looks like PF module ,,but I am sure it is OK ,,I change 3 new PF module ,,problem is same
Hum.. Frequency error again it have to recelibrate the tx parameter ( if when you press 'send' the phone auto switch off it means P.A fail) but I don't have celibration program yet if someone has it pls send it to me , if you can't get the program to calibrate it you have to change the TCXO or duplexer or the downlink filter ( you have to check it manualy) .. good luck !
Hi I have same problem with C35...RX is Ok but TX fail. !displayed before network name. I change PF module but TX still fail.<br /> is that problem frequency calibration too?<br />thanks 4 help<br />Vicky
Hm, check power suply on PA module, maybe the PA module has no voltage !?!?!
For frequency calibrations you need more than a program ... lot of expensive equipment, signal generators, speqtrum analyzers and so on ....
Best regards...