5210 insert sim problem - GSM-Forum

Destructor · 12-15-2003, 14:56

everything works except phone doesn't recognize sim card,like is it without sim,allready change contacts with sim,clean contacts on pcb..

Medz · 12-15-2003, 15:40

Hi..

Check continuety between SIM pads and V104 (ziner x 4 , Mid pin
=Gnd), to R124,R125,and R128 ( 100,100,47 Ohm ).

If all is OK , still not working , reflow,reball, or replace the ccont .

vule · 12-15-2003, 17:01

If above does not help, then it is CPU... Especially if it is old board revision with no underfilled CPU...

BR

Vule

Destructor · 12-15-2003, 18:24

does anybody have board schematics so i can find these resistors

Destructor · 12-15-2003, 19:46

can somebody post me a value of resistors on right side of battery(between sim pins)

Medz · 12-15-2003, 21:54

Here is a snapshot..

Destructor · 12-15-2003, 23:43

correct me if I'm wrong,but this is shematics of 8210,but i don't need any help,i solve problem by replacing that two resistors,from earlyer posts,thanks anyway,

Medz · 12-16-2003, 13:08

U'r wellcom.

U are right it's 8210 schematic..

Here in this case snapshot gives the aime , cause it's the same
structure with different places ( I refeerd to a PCB, founds battery
at the place of them), But the values are the same.

ficho · 12-16-2003, 13:12

Once I had also lead from D8 Ccont to A12 MCU broken so check clk data lines from sim to ccont to mcu

Destructor · 12-16-2003, 15:10

i know that values of resistors in 8210 are the same like 5210,becouse of that if use resistors from 8210 that I have for testing's of brocken tracks

12-15-2003, 14:56	#1 (permalink)
Destructor No Life Poster Join Date: Apr 2003 Location: Crazy House Age: 41 Posts: 683 Member: 27606 Status: Offline Thanks Meter: 15	5210 insert sim problem everything works except phone doesn't recognize sim card,like is it without sim,allready change contacts with sim,clean contacts on pcb..

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12-15-2003, 15:40	#2 (permalink)
Medz No Life Poster Join Date: Sep 2003 Age: 66 Posts: 807 Member: 39601 Status: Offline Thanks Meter: 13	Hi.. Check continuety between SIM pads and V104 (ziner x 4 , Mid pin =Gnd), to R124,R125,and R128 ( 100,100,47 Ohm ). If all is OK , still not working , reflow,reball, or replace the ccont .

12-15-2003, 17:01	#3 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	If above does not help, then it is CPU... Especially if it is old board revision with no underfilled CPU... BR Vule

12-15-2003, 18:24	#4 (permalink)
Destructor No Life Poster Join Date: Apr 2003 Location: Crazy House Age: 41 Posts: 683 Member: 27606 Status: Offline Thanks Meter: 15	does anybody have board schematics so i can find these resistors

12-15-2003, 19:46	#5 (permalink)
Destructor No Life Poster Join Date: Apr 2003 Location: Crazy House Age: 41 Posts: 683 Member: 27606 Status: Offline Thanks Meter: 15	can somebody post me a value of resistors on right side of battery(between sim pins)

12-15-2003, 23:43	#7 (permalink)
Destructor No Life Poster Join Date: Apr 2003 Location: Crazy House Age: 41 Posts: 683 Member: 27606 Status: Offline Thanks Meter: 15	correct me if I'm wrong,but this is shematics of 8210,but i don't need any help,i solve problem by replacing that two resistors,from earlyer posts,thanks anyway,

12-16-2003, 13:08	#8 (permalink)
Medz No Life Poster Join Date: Sep 2003 Age: 66 Posts: 807 Member: 39601 Status: Offline Thanks Meter: 13	U'r wellcom. U are right it's 8210 schematic.. Here in this case snapshot gives the aime , cause it's the same structure with different places ( I refeerd to a PCB, founds battery at the place of them), But the values are the same.

12-16-2003, 13:12	#9 (permalink)
ficho Freak Poster Join Date: Oct 2001 Posts: 141 Member: 7054 Status: Offline Thanks Meter: 1	Once I had also lead from D8 Ccont to A12 MCU broken so check clk data lines from sim to ccont to mcu

12-16-2003, 15:10	#10 (permalink)
Destructor No Life Poster Join Date: Apr 2003 Location: Crazy House Age: 41 Posts: 683 Member: 27606 Status: Offline Thanks Meter: 15	i know that values of resistors in 8210 are the same like 5210,becouse of that if use resistors from 8210 that I have for testing's of brocken tracks