r220 Network problem - GSM-Forum

mohammed · 11-04-2004, 05:34

hi
i have FEW r220

they SHOW FULL SIGNAL
but when we dial out "CALLED FAILED"
phones 100% legal

can some1 TELL ME EXACTLY where problem aly

which ic
thanks alot
bye

trustunna · 11-04-2004, 09:55

mohammed

the problem is with PA (power amplifier) try changing it and post result.
good luck

mohammad2004 · 11-04-2004, 23:02

1-you sure full flash and eprom

2- check and replace the connector sky an

3-change pa and swich an (100% ok)

najafi · 11-05-2004, 01:18

HI: I reply Quick is power amplifair

Mobile Master Pk · 11-05-2004, 19:21

fist you can chang antna swtch if set not ok you can chang PA

nobal1976 · 11-06-2004, 11:09

its simple byepass the 2 risesters down side of pa and up side of pa with a wire upside resesters r seres in antena swich . and cleen your set with ctc. your set will ok ( sorry my poor english)

nobal1976 · 11-06-2004, 11:18

if u have jpg of r220 kit i can pointout .

buschell · 11-06-2004, 16:23

you should change th PA,if you remove the PA and insert a simcard and dial,it will say call fail,to me it is the PA.also to the last contributor to tell us the resistor that he is talking about.the number for the resistor,so that we that also try is own method .

Huefone · 11-09-2004, 16:23

Quote:

Originally Posted by mohammed

hi
i have FEW r220

they SHOW FULL SIGNAL
but when we dial out "CALLED FAILED"
phones 100% legal

can some1 TELL ME EXACTLY where problem aly

which ic
thanks alot
bye

you make hot VCO .........ok call good

rirou · 11-12-2004, 03:22

1 - make full eeprom reset with code *2767*.....
2 - remove the antenna and try to call
4 - lock at the secondary antenna inside the antenna connecter if is good soldered
3 - if not calling change the pa

good luck

btl · 11-12-2004, 03:37

pls post a picture of how to cross this fone to get net cos i dont know where to get the pa here i my country

11-04-2004, 05:34	#1 (permalink)
mohammed No Life Poster Join Date: Sep 2002 Location: max232 chip Posts: 690 Member: 16036 Status: Offline Thanks Meter: 5	r220 Network problem hi i have FEW r220 they SHOW FULL SIGNAL but when we dial out "CALLED FAILED" phones 100% legal can some1 TELL ME EXACTLY where problem aly which ic thanks alot bye

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11-04-2004, 09:55	#2 (permalink)
trustunna Banned Join Date: Apr 2004 Age: 43 Posts: 267 Member: 63279 Status: Offline Thanks Meter: 8	mohammed the problem is with PA (power amplifier) try changing it and post result. good luck

11-04-2004, 23:02	#3 (permalink)
mohammad2004 No Life Poster Join Date: Jul 2004 Age: 38 Posts: 641 Member: 71144 Status: Offline Thanks Meter: 12	1-you sure full flash and eprom 2- check and replace the connector sky an 3-change pa and swich an (100% ok)

11-05-2004, 01:18	#4 (permalink)
najafi Crazy Poster Join Date: Oct 2004 Location: www.ir-gsm.co Age: 40 Posts: 55 Member: 87996 Status: Offline Thanks Meter: 0	HI: I reply Quick is power amplifair

11-05-2004, 19:21	#5 (permalink)
Mobile Master Pk No Life Poster Join Date: May 2004 Location: M Arshed Khan Age: 55 Posts: 577 Member: 66225 Status: Offline Thanks Meter: 9	fist you can chang antna swtch if set not ok you can chang PA

11-06-2004, 11:09	#6 (permalink)
nobal1976 No Life Poster Join Date: Jul 2004 Location: Gujranwala Pakistan Age: 48 Posts: 759 Member: 71190 Status: Offline Sonork: 100.1580485 Thanks Meter: 87	its simple byepass the 2 risesters down side of pa and up side of pa with a wire upside resesters r seres in antena swich . and cleen your set with ctc. your set will ok ( sorry my poor english)

11-06-2004, 11:18	#7 (permalink)
nobal1976 No Life Poster Join Date: Jul 2004 Location: Gujranwala Pakistan Age: 48 Posts: 759 Member: 71190 Status: Offline Sonork: 100.1580485 Thanks Meter: 87	if u have jpg of r220 kit i can pointout .

11-06-2004, 16:23	#8 (permalink)
buschell Freak Poster Join Date: Feb 2004 Age: 56 Posts: 491 Member: 52884 Status: Offline Thanks Meter: 13	you should change th PA,if you remove the PA and insert a simcard and dial,it will say call fail,to me it is the PA.also to the last contributor to tell us the resistor that he is talking about.the number for the resistor,so that we that also try is own method .

11-12-2004, 03:22	#10 (permalink)
rirou Freak Poster Join Date: Oct 2004 Location: TUNISIA Age: 44 Posts: 365 Member: 85312 Status: Offline Sonork: 1576920 Thanks Meter: 35	1 - make full eeprom reset with code 2767..... 2 - remove the antenna and try to call 4 - lock at the secondary antenna inside the antenna connecter if is good soldered 3 - if not calling change the pa good luck

11-12-2004, 03:37	#11 (permalink)
btl Banned Join Date: Jan 2004 Age: 32 Posts: 1,319 Member: 50389 Status: Offline Thanks Meter: 36	pls post a picture of how to cross this fone to get net cos i dont know where to get the pa here i my country