n70 pwr problem - GSM-Forum

x_man_2002 · 11-15-2009, 18:52

hi friends
i get n70 phone
when u press pwr on the flash light is open
i clean the phone very good
1- i change tahvo
2- i make the boot ic jamper
3- i change all capcter and resistance around tavho

the phoe still as it
not open and the flash light is open

plz this phoe make me crazy what to do with it
plz help me

MAGDY2 · 11-15-2009, 18:59

man its always boot ic pro
some times retu has something 2 do with this fault
but 2 be sure u have to do check WITH JAF and post result
and make sure there is no short in mobile
CHEAK IT WITH POWER SUPPLAY
clean it very good

B.R

x_man_2002 · 11-15-2009, 19:16

Quote:

Originally Posted by MAGDY2

man its always boot ic pro
some times retu has something 2 do with this fault
but 2 be sure u have to do check WITH JAF and post result
and make sure there is no short in mobile
CHEAK IT WITH POWER SUPPLAY
clean it very good

B.R

r emove boot ic and make this short
when i connect it to pwr supply it take curren lower than 10 MAmp
the phone has no short

when i put on jaf
Changing mode...Done!
Booting phone...
Error sync the phone
help me man what to do

x_man_2002 · 11-15-2009, 19:24

Quote:

Originally Posted by x_man_2002

hi friends
i get n70 phone
when u press pwr on the flash light is open
i clean the phone very good
1- i change retu
2- i make the boot ic jamper
3- i change all capcter and resistance around retu

the phoe still as it
not open and the flash light is open

plz this phoe make me crazy what to do with it
plz help me

i mean i change pwr ic (retu )

suraj9860607689 · 11-16-2009, 05:31

Just Rehot CPU.(With Good Flux)

MAGDY2 · 11-16-2009, 07:05

ok
what is the history of the phone fall water dameg or what
and befor and after u make jumber did u check the voltage
from jaf log and power supply ur pb in power section

gsmsikar · 11-16-2009, 07:37

check the voltage according to the schematic and post result , where u dont get the correct voltage ?

x_man_2002 · 11-16-2009, 13:12

Quote:

Originally Posted by gsmsikar

check the voltage according to the schematic and post result , where u dont get the correct voltage ?

the history of the phone was that
the phone was water damge and his owner use it and the phone was ok
but once it become as the condition when u pwr on the flash light on and the phone not open
i clean it very good
change retu
change all compontent around retu (resistor and capecitor )
i remove the boot ic and make the short as i said
all what i do mke no change

you said check voltage
help me more give apic of the component which i have to check

MAGDY2 · 11-16-2009, 15:33

push omap by ur hand and try 2 power phone while u still pushing
and post result

x_man_2002 · 11-16-2009, 16:08

Quote:

Originally Posted by MAGDY2

push omap by ur hand and try 2 power phone while u still pushing
and post result

the omap is protected my friend
another solution
plz

x_man_2002 · 11-16-2009, 21:23

hi friends
i found the problem
but i can't fond the soution
there is no volt on this componet
c2214=2.5v
c2213=1.8v
c2221=4.7v
the most important one is c2213 why
because it connect pwr to Rap3G and that why the phone not start up

the problem how to solve this problem
the only component which have 1.8 volt is c2802 and it also have no volt on it
any one can give me answer will help me

MAGDY2 · 11-16-2009, 21:27

Quote:

Originally Posted by x_man_2002

hi friends
i found the problem
but i can't fond the soution
there is no volt on this componet
c2214=2.5v
c2213=1.8v
c2221=4.7v
the most important one is c2213 why
because it connect pwr to rap3g and that why the phone not start up

the problem how to solve this problem
the only component which have 1.8 volt is c2802 and it also have no volt on it
any one can give me answer will help me

all those volts come from retu

x_man_2002 · 11-16-2009, 22:02

Quote:

Originally Posted by MAGDY2

all those volts come from retu

good
i change retu but ther was two missing point under it retu
if u can give apic of retu point u help me

sharpgsm · 11-17-2009, 05:47

this is boot ic problem as ur flash light glow directly so make altretion use search

gsmsikar · 11-17-2009, 06:59

Quote:

Originally Posted by x_man_2002

good
i change retu but ther was two missing point under it retu
if u can give apic of retu point u help me

try to check the schematic and find if those points are useful or not ...

11-15-2009, 18:52	#1 (permalink)
x_man_2002 Freak Poster Join Date: Jun 2009 Posts: 102 Member: 1057695 Status: Offline Thanks Meter: 29	n70 pwr problem hi friends i get n70 phone when u press pwr on the flash light is open i clean the phone very good 1- i change tahvo 2- i make the boot ic jamper 3- i change all capcter and resistance around tavho the phoe still as it not open and the flash light is open plz this phoe make me crazy what to do with it plz help me

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11-15-2009, 18:59	#2 (permalink)
MAGDY2 Registered User Join Date: Jan 2004 Posts: 201 Member: 49677 Status: Offline Thanks Meter: 53	man its always boot ic pro some times retu has something 2 do with this fault but 2 be sure u have to do check WITH JAF and post result and make sure there is no short in mobile CHEAK IT WITH POWER SUPPLAY clean it very good B.R

11-16-2009, 05:31	#5 (permalink)
suraj9860607689 No Life Poster Join Date: Jun 2008 Location: Pune (Daund) Maharashtra Age: 34 Posts: 1,639 Member: 787710 Status: Offline Sonork: not using Thanks Meter: 771	Just Rehot CPU.(With Good Flux)

11-16-2009, 07:05	#6 (permalink)
MAGDY2 Registered User Join Date: Jan 2004 Posts: 201 Member: 49677 Status: Offline Thanks Meter: 53	ok what is the history of the phone fall water dameg or what and befor and after u make jumber did u check the voltage from jaf log and power supply ur pb in power section

11-16-2009, 07:37	#7 (permalink)
gsmsikar No Life Poster Join Date: May 2003 Posts: 5,667 Member: 28004 Status: Offline Sonork: 100.1601142 Thanks Meter: 770	check the voltage according to the schematic and post result , where u dont get the correct voltage ?

11-16-2009, 15:33	#9 (permalink)
MAGDY2 Registered User Join Date: Jan 2004 Posts: 201 Member: 49677 Status: Offline Thanks Meter: 53	push omap by ur hand and try 2 power phone while u still pushing and post result

11-16-2009, 21:23	#11 (permalink)
x_man_2002 Freak Poster Join Date: Jun 2009 Posts: 102 Member: 1057695 Status: Offline Thanks Meter: 29	hi friends i found the problem but i can't fond the soution there is no volt on this componet c2214=2.5v c2213=1.8v c2221=4.7v the most important one is c2213 why because it connect pwr to Rap3G and that why the phone not start up the problem how to solve this problem the only component which have 1.8 volt is c2802 and it also have no volt on it any one can give me answer will help me

11-17-2009, 05:47	#14 (permalink)
sharpgsm No Life Poster Join Date: Jul 2006 Location: india Age: 43 Posts: 551 Member: 313652 Status: Offline Sonork: 100.1625717 Thanks Meter: 99	this is boot ic problem as ur flash light glow directly so make altretion use search