7250i Sim card reader contacts broken HOW to fix???? - GSM-Forum

NaaN · 03-20-2004, 20:51

A Customer has brought a phone to me which that have tried to repair themselves, the sim card reader contacts have been totally ripped off the board (all six of them) !!!

Very bad i know, but i would like to try and fix it, does any one know where the pads lead to ?

As i could solder some thin wire from that point to the sim card reader pads and solder them to the legs of the reader, hence gettin it to work (hopefully)

Any help would be greatly appreciated

Regards

NaaN

Own · 03-20-2004, 21:36

Hi
see old topic [8310 insert sim card] and you can jump directly between R388 with sim connector without rl[resister load bcs. inside R388 have rl]please see schematic diagram of nk7250 or etc[if phone use R388]
BR
Own

Own · 03-20-2004, 21:49

Hi

in your picture if sim connector broken only you can use by this way but broken in line or truehole you shoud check it by schematic[if you can read schematic diagram...so you can fix it EASY]
regards
Own

sorry my english

NaaN · 03-21-2004, 00:08

I have looked at the schematic but its a bit difficult to understand !!

(i am not expert in electronics, only have a good idea about it)

Own · 03-21-2004, 04:24

Hi

at R388 use 3 point + volt sim [connect at C203 please you at lay out diagram] = include direct jump = 4 line please you see picture at
insert_sim_card, 8310

please you see at picture and please you see at schematic
1 VSIM connect at C203 = volt bias [+vcc]
2 SIMRST connect at [2 see in picturehttp://forum.gsmhosting.com/vbb/attachment.php?attachmentid=274]
3 SIMCLK connect at [6 see in http://forum.gsmhosting.com/vbb/atta...achmentid=274]
4 SIMDATA connect at [9 see in http://forum.gsmhosting.com/vbb/atta...achmentid=274]

C203 stay at near R388 [ 1 leg to ground , 1 leg = vcc bias to sim direct]
if jump alternate wrong in 234 cant work but no effect to UEM bcs it use little current
5 SIM GROUND jump to ground boad

so if Z301[from 8310],N150 [from 6610,7210] i have schematic for this part i think can modifiy [some body have it?]
BR
Own

NaaN · 03-21-2004, 17:29

I have tried this method i now have 100% fully working phone!!

THANKS!!

Do you know which point i need to connect on a 7650 for the FBUS RX, the same thing has happened, someone has ripped the pads off!

Thanks

NaaN

b0ba · 03-21-2004, 18:59

I can send the rope and the soap to your customer, totaly free.... PM me for your's customer address.
If your customer needs manual how to use the stuff mentioned then mail me.

WBR
b0ba

NaaN · 03-21-2004, 19:33

lol, ill be sending him a Nice invoice !

Ill be getting him a manual on how to use a soldering iron! the idiot!

BR
NaaN

Own · 03-21-2004, 22:41

i need to connect on a 7650 for the FBUS RX.........
what's happened? please explain me [sorry my english very bad] but i want help you
br
Own

NaaN · 03-22-2004, 00:22

the contact pad for the Fbus RX has been ripped off, like the sim card contact pads.

(it is the third connection in the row. Where the datacable goes)

I have attached picture

I need to fix this

Regards

NaaN

Own · 03-22-2004, 06:53

if fbus have broken please you see at UEM [A7=fbustx,c7=fbusrx]use wire jump to it.but fbus contact have ripped must modify little
regards
Own

NaaN · 03-22-2004, 11:03

Is that the only place i can jump from?

Does it mean i need to remove the UEM ? and place wire, then put UEM back ?

Own · 03-22-2004, 12:20

check line between fbusrx point [stay at under UEM by remove before] to contact fbus please see at schematic diagram
regards
Own

imran hafeez · 08-07-2004, 12:13

form where i get the diagram for 6610 insert sim

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03-20-2004, 21:36	#2 (permalink)
Own No Life Poster Join Date: Aug 2001 Location: Minsk Russia Posts: 922 Member: 5569 Status: Offline Thanks: 5 Thanked 10 Times in 4 Posts	Hi see old topic [8310 insert sim card] and you can jump directly between R388 with sim connector without rl[resister load bcs. inside R388 have rl]please see schematic diagram of nk7250 or etc[if phone use R388] BR Own

03-20-2004, 21:49	#3 (permalink)
Own No Life Poster Join Date: Aug 2001 Location: Minsk Russia Posts: 922 Member: 5569 Status: Offline Thanks: 5 Thanked 10 Times in 4 Posts	Hi in your picture if sim connector broken only you can use by this way but broken in line or truehole you shoud check it by schematic[if you can read schematic diagram...so you can fix it EASY] regards Own sorry my english

03-21-2004, 00:08	#4 (permalink)
NaaN Freak Poster Join Date: May 2003 Location: In between some long female legs Posts: 377 Member: 28095 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	I have looked at the schematic but its a bit difficult to understand !! (i am not expert in electronics, only have a good idea about it)

03-21-2004, 04:24	#5 (permalink)
Own No Life Poster Join Date: Aug 2001 Location: Minsk Russia Posts: 922 Member: 5569 Status: Offline Thanks: 5 Thanked 10 Times in 4 Posts	Hi at R388 use 3 point + volt sim [connect at C203 please you at lay out diagram] = include direct jump = 4 line please you see picture at insert_sim_card, 8310 please you see at picture and please you see at schematic 1 VSIM connect at C203 = volt bias [+vcc] 2 SIMRST connect at [2 see in picturehttp://forum.gsmhosting.com/vbb/attachment.php?attachmentid=274] 3 SIMCLK connect at [6 see in http://forum.gsmhosting.com/vbb/atta...achmentid=274] 4 SIMDATA connect at [9 see in http://forum.gsmhosting.com/vbb/atta...achmentid=274] C203 stay at near R388 [ 1 leg to ground , 1 leg = vcc bias to sim direct] if jump alternate wrong in 234 cant work but no effect to UEM bcs it use little current 5 SIM GROUND jump to ground boad so if Z301[from 8310],N150 [from 6610,7210] i have schematic for this part i think can modifiy [some body have it?] BR Own

03-21-2004, 17:29	#6 (permalink)
NaaN Freak Poster Join Date: May 2003 Location: In between some long female legs Posts: 377 Member: 28095 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	I have tried this method i now have 100% fully working phone!! THANKS!! Do you know which point i need to connect on a 7650 for the FBUS RX, the same thing has happened, someone has ripped the pads off! Thanks NaaN

03-21-2004, 18:59	#7 (permalink)
b0ba No Life Poster Join Date: Oct 2001 Location: No route to host. Age: 33 Posts: 902 Member: 6772 Status: Offline Thanks: 1 Thanked 17 Times in 6 Posts	I can send the rope and the soap to your customer, totaly free.... PM me for your's customer address. If your customer needs manual how to use the stuff mentioned then mail me. WBR b0ba

03-21-2004, 19:33	#8 (permalink)
NaaN Freak Poster Join Date: May 2003 Location: In between some long female legs Posts: 377 Member: 28095 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	lol, ill be sending him a Nice invoice ! Ill be getting him a manual on how to use a soldering iron! the idiot! BR NaaN

03-21-2004, 22:41	#9 (permalink)
Own No Life Poster Join Date: Aug 2001 Location: Minsk Russia Posts: 922 Member: 5569 Status: Offline Thanks: 5 Thanked 10 Times in 4 Posts	i need to connect on a 7650 for the FBUS RX......... what's happened? please explain me [sorry my english very bad] but i want help you br Own

03-22-2004, 06:53	#11 (permalink)
Own No Life Poster Join Date: Aug 2001 Location: Minsk Russia Posts: 922 Member: 5569 Status: Offline Thanks: 5 Thanked 10 Times in 4 Posts	if fbus have broken please you see at UEM [A7=fbustx,c7=fbusrx]use wire jump to it.but fbus contact have ripped must modify little regards Own

03-22-2004, 11:03	#12 (permalink)
NaaN Freak Poster Join Date: May 2003 Location: In between some long female legs Posts: 377 Member: 28095 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	Is that the only place i can jump from? Does it mean i need to remove the UEM ? and place wire, then put UEM back ?

03-22-2004, 12:20	#13 (permalink)
Own No Life Poster Join Date: Aug 2001 Location: Minsk Russia Posts: 922 Member: 5569 Status: Offline Thanks: 5 Thanked 10 Times in 4 Posts	check line between fbusrx point [stay at under UEM by remove before] to contact fbus please see at schematic diagram regards Own

08-07-2004, 12:13	#14 (permalink)
imran hafeez Insane Poster Join Date: Jun 2004 Age: 37 Posts: 69 Member: 69042 Status: Offline Thanks: 4 Thanked 2 Times in 2 Posts	form where i get the diagram for 6610 insert sim