7650 signal problem need HELP - GSM-Forum

razvan · 03-13-2004, 00:05

7650 no signal at all. i've changed pfo and antena sw also flashed but nothing...
it also have a little power consumption.
can somebody help me coz i don't know what to do...?
thank you!

razvan · 03-15-2004, 00:42

i still need some help.
forget me not!
thank you!

Platijet · 03-15-2004, 01:38

change vco

nlogomaster · 03-31-2004, 17:50

much better dont touch first mention parts and try replacing UEM first.
its the usually first to conked out

razvan · 03-31-2004, 23:46

replacing uem is not an easy thing... you must recalibrate it...
i have no waranty that changing the uem my phone will work.

Aamir_Zia · 04-08-2004, 09:16

hey
Man

do u try to WRITE PM VALUES
write Pm Values & check

razvan · 04-08-2004, 22:41

thank youv
there are many things to be done but i prefer to wait for a certain answer.

ESProc2k · 05-04-2004, 02:35

Quote:

Originally Posted by razvan

thank youv
there are many things to be done but i prefer to wait for a certain answer.

U need an FLS-8 & other special skills 2 calibrate correctly the RSSI, Tx

I/Q & power level values. If U change sumthing in the RF part, U must keep

this values finetuned 4 ideal reception. Not easy...And U can't get this stuff

in the next drogery...

BR.:ESP

razvan · 05-08-2004, 23:51

@esproc2k
i'm sorry mate but i don't understand what are you talking about.

ESProc2k · 05-10-2004, 01:19

Quote:

Originally Posted by ESProc2k

U need an FLS-8 & other special skills 2 calibrate correctly the RSSI, Tx

I/Q & power level values. If U change sumthing in the RF part, U must keep

this values finetuned 4 ideal reception. Not easy...And U can't get this stuff

in the next drogery...

BR.:ESP

In another words: after U changed anything (power amplifier, diplexer, etc...) in the radio part of Ur fone, U must re-calibrate all the radio settings (transmit power level values, phase shifting, modulation, etc...) for a good signal reception. If U don't, maybe Ur fone looks like found network, but if anyone calls U he / she gets a busy signal or "not reachable"...I hope it was clear now...

BR.:ESP

razvan · 05-10-2004, 22:52

man...
my 7650 has no signal. NO SIGNAL!!! it's not about good signal reception.
the problem is sofware...
before flashing full signal, good reception etc, but after flash no signal at all.
PMM doesn't help.
any idea???

ESProc2k · 05-11-2004, 22:13

Quote:

Originally Posted by razvan

man...
my 7650 has no signal. NO SIGNAL!!! it's not about good signal reception.
the problem is sofware...
before flashing full signal, good reception etc, but after flash no signal at all.
PMM doesn't help.
any idea???

Ok, I got it...In 7650 series is a common fault the untuned radio part after flashing, especially U flash it with Phoenix, but maybe Griffin or Prodigy can cause it too.If problem is not solved with flashing many times (sometimes 6-7 or more cycling complete flash update required to normal operation), U must change the UEM or HAGAR to success...And this operation needs recalibrating the RF part...

BR.:ESP

razvan · 05-12-2004, 17:42

thank you!
but... i don't want to change UEM. i have my reasons not to do so. recalibrating is the problem.

ESProc2k · 05-13-2004, 01:49

Quote:

Originally Posted by razvan

thank you!
but... i don't want to change UEM. i have my reasons not to do so. recalibrating is the problem.

Try to change back those spareparts what U've changed, and after that try 2 flash it several times in cycle till U get a working phone again. If U tried more than 10 flashes and did'nt work, U have 2 change the UEM (Bcoz it's faulty) and recalibrate the radio data values (it's necessary after changing UEM). Unfortunately U can't do sidestep in this case...If U're a lucky guy, U must do only the flashing...

My crossed fingers 4 U,m8...

))

BR.:ESP

razvan · 05-13-2004, 02:33

thank you for concerning about my problem...

the only thing i've changed in this phone was antena switch and pfo, but these spear parts was changed after i've flashed phone with griffin more than 10 times i guess.
soo... you say that in this case the only thing that can help me is changing uem and recalibrating? and if it still don't work? at least i tried?
in this case i have to pay to griffin team for rpl. i don't like the ideea to pay because the only way i can do it is by western-union and i hate this.

03-13-2004, 00:05	#1 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	7650 signal problem need HELP 7650 no signal at all. i've changed pfo and antena sw also flashed but nothing... it also have a little power consumption. can somebody help me coz i don't know what to do...? thank you!

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03-15-2004, 00:42	#2 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	i still need some help. forget me not! thank you!

03-15-2004, 01:38	#3 (permalink)
Platijet No Life Poster Join Date: Apr 2003 Location: Greece Age: 47 Posts: 3,358 Member: 26279 Status: Offline Thanks Meter: 274	change vco

03-31-2004, 17:50	#4 (permalink)
nlogomaster Product Supporter Join Date: Oct 2002 Location: Philippines/Shenzhen, China Age: 58 Posts: 965 Member: 16816 Status: Offline Sonork: 100.42691 Thanks Meter: 105	much better dont touch first mention parts and try replacing UEM first. its the usually first to conked out

03-31-2004, 23:46	#5 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	replacing uem is not an easy thing... you must recalibrate it... i have no waranty that changing the uem my phone will work.

04-08-2004, 09:16	#6 (permalink)
Aamir_Zia No Life Poster Join Date: Dec 2003 Location: Karachi Pakistan Age: 38 Posts: 6,770 Member: 47321 Status: Offline Sonork: 100.54032 Thanks Meter: 497	hey Man do u try to WRITE PM VALUES write Pm Values & check

04-08-2004, 22:41	#7 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	thank youv there are many things to be done but i prefer to wait for a certain answer.

05-08-2004, 23:51	#9 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	@esproc2k i'm sorry mate but i don't understand what are you talking about.

05-10-2004, 22:52	#11 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	man... my 7650 has no signal. NO SIGNAL!!! it's not about good signal reception. the problem is sofware... before flashing full signal, good reception etc, but after flash no signal at all. PMM doesn't help. any idea???

05-12-2004, 17:42	#13 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	thank you! but... i don't want to change UEM. i have my reasons not to do so. recalibrating is the problem.

05-13-2004, 02:33	#15 (permalink)
razvan Freak Poster Join Date: Aug 2001 Location: on air Age: 46 Posts: 431 Member: 5921 Status: Offline Thanks Meter: 5	thank you for concerning about my problem... the only thing i've changed in this phone was antena switch and pfo, but these spear parts was changed after i've flashed phone with griffin more than 10 times i guess. soo... you say that in this case the only thing that can help me is changing uem and recalibrating? and if it still don't work? at least i tried? in this case i have to pay to griffin team for rpl. i don't like the ideea to pay because the only way i can do it is by western-union and i hate this.