U5i no signal. can ask pa ic jumper diagram? the antenna is in good condition. help me

please do these mathod first.
first check antena point connect with pcb.
2nd,check pa voltage.
3rd menual searchig network.
4th,remove pa make jumper.
if not ok
then final change pa signal ic
for more information please loginto http://phonetolls.blogspot.com

Nokia 2626 Signal No Network repairing solution.Nokia 2626 Signal No Network Mobile Repair diagram pictures Service Tips and Tricks.Make Jumpers as shown in diagram or replace the shown components .
How to short Nokia 2626 PA.jumper Pa nokia 2626. here is a diagram that is showing how to jumper and short P.A of nokia 2626. it is used to check that mobile is getting signals or not. if signals are to low with jumper change the P.A

my sony ericsson u5i is asking for network code.ime:012332006010816

first tray to re sofware with good PM(permanent memory).is stil not works it mean the damage are on PA(power amlifier) as transmision equipment. the way is change PA IC it self. good luck..

tray to change PA(power amlifier)IC in your phone.your transmision in your phone not good anymore its the duty of PA IC.or you can resolder PA IC first sometimes it works.good luck..

Friend, if it has no network. check the following: battery be sure it has enough current to supply the unit. 2. be sure the SIM CARD is good and functional. 3. Check the Antenna if properly connected.this the metal plate at the back. 4. go to the setting then perform manual search.if appears signal the faulty is the antenna switch (hardware inside) or P.A. amplier (hardware inside) if no signal stil then the problem is audio IC. name COBBA that needs to be replace. Installing the hardware may needs expertice so ask the mobile technicians around you. good luck

You must change PA(Power Amplifier) IC on your phone.5-6second signal than gone is a sign of PA IC not work any more.You know that PA is an IC where phone use to transmit.I hope it help.

First check the battery connector make sure it's press well.if still switch off, You have to change your PA IC(used phone to transmitt).Battery dropp when calling is the sign off PA IC not in good condition anymore.To change PA I suggest to take to service center,But if you are the expert one,just do it.I hope it helped.

tapgsm.com.ph and searh v220 signal

simple, reset your settings or soft reset but first backup your phone memory when finished get your mmc and resetnit....