re-using sim cards - GSM-Forum

fofodaman · 10-11-2002, 03:12

has anyone tried to erase & reprogram a standard GSM sim ?

I have 2 cards that are blocked (puk) & as you can tell, i do not have the puk codes, so i have been trying to find out what kind of a proccessor they are, with no luck,,,

Has anyone a clue how to , if possible at all, reprogram those ?

Thanks.

cut_r2000 · 10-11-2002, 18:52

i tried to erase standard GSM sim card but can not erase or reprogram

fofodaman · 10-12-2002, 01:13

well, mine reads blank! yet it still asks for the puk, i bet if I ever do find the puk, the pic will be erased! it is the eeprom that is answering to the phone power on,,, however, if we can find the type of pic, maybe can be done? or is it write-protected?

Virus_GSM · 11-08-2002, 16:16

the pic is SGS Thompson ST16SF48 CPU with 8kb or 16kb (GSM phase 1 or 2)
I think a simcard acts like a Goldcard with a Pic 16C84 that can be programmed a single time.
Anyway i haven't succeded to erase the damn chip.
It would be great if it wil work. wouldn't it?

Regards

VendorGSM · 11-09-2002, 19:58

You are right Virus_GSM

The normal sim-card is echivalent with wafer-card with pic 16C84 and eeprom 24c16 or 24c32. I this case programming for normal sim-card is imposible because PIC is C-series and can be programmed a single time; is programmed with CP on and don't have any loader emmulated on it. This mean the PIC can't be readed, can't be reprogrammed and because for acces eeprom is posible only via PIC and only if PIC have loader on it, the eeprom ca't be readed or programmed too!

My best regards,

Przemo · 11-09-2002, 20:28

If you are in possession codes of administrator to this cards you will be able to remove, to add, to widen, to change statuses of files ( of course in due measure possibilities of memory of card ).
If their you do not have, nothing you will make.
I did not hear about possibility of cleaning up of not used cards.

I greet.

Przemo P

VendorGSM · 11-09-2002, 22:49

[QUOTE]Originally posted by Przemo
[B]If you are in possession codes of administrator to this cards you will be able to remove, to add, to widen, to change statuses of files ( of course in due measure possibilities of memory of card ).
If their you do not have, nothing you will make.
I did not hear about possibility of cleaning up of not used cards.

possession codes of administrator????

what is this??? I have many friends who working for some providers in security sectors and up now I don't hear nothing about this "possesion code"

You are sure about that or is only teoretical????

Przemo · 11-10-2002, 14:11

Access condition level coding:

level: access condition:
0 always
1 PIN1
2 PIN2
3 not used
4-14 admin !!!
15 never

Przemo P.

Virus · 11-16-2002, 23:30

that means that the puk code is one of the admin's codes.
where are the other codes stored? at the provider or manufacturer ?
regards

Virus_GSM · 11-16-2002, 23:36

are this codes generated by the manufacturer or the provider? who knows? maybe we can figure it out somehow.
regardz !

nab · 11-17-2002, 01:27

I think you are wrong, if sim cant be erased/re-programmed in both pic and eeprom, how can it add names/number or store texts or allow change of pin code ????

is this making you guys think ? I hope so

take care friends

fofodaman · 11-17-2002, 17:52

I agree with nab, i think it can be done. i am not sure if there is a program that supports what virus_gsm described as the type

Quote:

the pic is SGS Thompson ST16SF48 CPU with 8kb or 16kb (GSM phase 1 or 2)

but if there is, then we can put it to the test.

in all gsm sim projects, there is always a storage place, & knowing that all these projects are based on dejan's first gsm_sim, which was based on his reading from an original sim,, then what can be done with these projects can be done with the originals, the question that remains is, is there a way to program such a sim ? talking about the SGS Thompson ST16SF48, be it a blank one. will one of these progys on hand do the job?

Matique2k · 11-18-2002, 20:06

I found a PDF file containing details about these so called admin codes for SIM cards on the ETSI site i think i typed in GSM or something in to the search engine. I cant remember the file name but i have made a hard copy of the file ill try to get some info typed up and post it

nab · 11-18-2002, 23:16

last point, sim card can be read and written i have done this today, i read it using a cheap reader, it read phonebok, telephone number for sim,sms messages and roaming info , all other basic params inc PIN code, BECAUSE PIN CODE WAS NOT ENABLED!, it also wrote these details to another sim.

Matique2k · 11-19-2002, 14:56

I have a list of GSM instructions for SIM cards

CLASS:

GSM = A0h

INSTRUCTIONS:

04h = Invalidate

10h = Terminal profile
12h = Fetch
14h = Terminal response

20h = Verify CHV
24h = Change CHV
26h = Disable CHV
28h = Enable CHV
2Ah = (ADMIN)
2Ch = Unblock CHV

32h = Increase

44h = Rehabilitate

88h = GSM Algorithm

A2h = Seek
A4h = Select

B0h = Read binary
B2h = Read record
B4h = (ADMIN)
B6h = (ADMIN)
B8h = (ADMIN)
BAh = (ADMIN)
BCh = (ADMIN)

C0h = Get response
C2h = (ADMIN)
C4h = (ADMIN)
C6h = (ADMIN)
C8h = (ADMIN)
CAh = (ADMIN)
CCh = (ADMIN)

D0h = (ADMIN)
D2h = (ADMIN)
D6h = Update binary
DCh = Update record
DEh = (ADMIN)

FAh = Sleep
F2h = Status

I hope these are helpful to someone

ps. The INS marked with ADMIN i dont know what they do yet so anyone with info could you post it cheers.

10-11-2002, 03:12	#1 (permalink)
fofodaman Freak Poster Join Date: Jan 2002 Location: Leon Posts: 461 Member: 8804 Status: Offline Thanks Meter: 4	re-using sim cards has anyone tried to erase & reprogram a standard GSM sim ? I have 2 cards that are blocked (puk) & as you can tell, i do not have the puk codes, so i have been trying to find out what kind of a proccessor they are, with no luck,,, Has anyone a clue how to , if possible at all, reprogram those ? Thanks.

11-16-2002, 23:30	#9 (permalink)
Virus Junior Member Join Date: Nov 2002 Age: 44 Posts: 5 Member: 17826 Status: Offline Thanks Meter: 0	a couple of questions that means that the puk code is one of the admin's codes. where are the other codes stored? at the provider or manufacturer ? regards

11-18-2002, 20:06	#13 (permalink)
Matique2k Insane Poster Join Date: Nov 2002 Age: 43 Posts: 67 Member: 17374 Status: Offline Thanks Meter: 0	Admin codes I found a PDF file containing details about these so called admin codes for SIM cards on the ETSI site i think i typed in GSM or something in to the search engine. I cant remember the file name but i have made a hard copy of the file ill try to get some info typed up and post it

11-19-2002, 14:56	#15 (permalink)
Matique2k Insane Poster Join Date: Nov 2002 Age: 43 Posts: 67 Member: 17374 Status: Offline Thanks Meter: 0	re Admin codes I have a list of GSM instructions for SIM cards CLASS: GSM = A0h INSTRUCTIONS: 04h = Invalidate 10h = Terminal profile 12h = Fetch 14h = Terminal response 20h = Verify CHV 24h = Change CHV 26h = Disable CHV 28h = Enable CHV 2Ah = (ADMIN) 2Ch = Unblock CHV 32h = Increase 44h = Rehabilitate 88h = GSM Algorithm A2h = Seek A4h = Select B0h = Read binary B2h = Read record B4h = (ADMIN) B6h = (ADMIN) B8h = (ADMIN) BAh = (ADMIN) BCh = (ADMIN) C0h = Get response C2h = (ADMIN) C4h = (ADMIN) C6h = (ADMIN) C8h = (ADMIN) CAh = (ADMIN) CCh = (ADMIN) D0h = (ADMIN) D2h = (ADMIN) D6h = Update binary DCh = Update record DEh = (ADMIN) FAh = Sleep F2h = Status I hope these are helpful to someone ps. The INS marked with ADMIN i dont know what they do yet so anyone with info could you post it cheers.

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10-11-2002, 18:52	#2 (permalink)
cut_r2000 Freak Poster Join Date: May 2002 Location: CUT_R Age: 52 Posts: 181 Member: 11641 Status: Offline Thanks Meter: 3	i tried to erase standard GSM sim card but can not erase or reprogram

10-12-2002, 01:13	#3 (permalink)
fofodaman Freak Poster Join Date: Jan 2002 Location: Leon Posts: 461 Member: 8804 Status: Offline Thanks Meter: 4	well, mine reads blank! yet it still asks for the puk, i bet if I ever do find the puk, the pic will be erased! it is the eeprom that is answering to the phone power on,,, however, if we can find the type of pic, maybe can be done? or is it write-protected?

11-08-2002, 16:16	#4 (permalink)
Virus_GSM Crazy Poster Join Date: Oct 2002 Location: Above all of ya' ! Posts: 56 Member: 16312 Status: Offline Thanks Meter: 0	the pic is SGS Thompson ST16SF48 CPU with 8kb or 16kb (GSM phase 1 or 2) I think a simcard acts like a Goldcard with a Pic 16C84 that can be programmed a single time. Anyway i haven't succeded to erase the damn chip. It would be great if it wil work. wouldn't it? Regards

11-09-2002, 19:58	#5 (permalink)
VendorGSM Freak Poster Join Date: May 2001 Location: Romania Posts: 277 Member: 4660 Status: Offline Thanks Meter: 1	You are right Virus_GSM The normal sim-card is echivalent with wafer-card with pic 16C84 and eeprom 24c16 or 24c32. I this case programming for normal sim-card is imposible because PIC is C-series and can be programmed a single time; is programmed with CP on and don't have any loader emmulated on it. This mean the PIC can't be readed, can't be reprogrammed and because for acces eeprom is posible only via PIC and only if PIC have loader on it, the eeprom ca't be readed or programmed too! My best regards,

11-09-2002, 20:28	#6 (permalink)
Przemo Junior Member Join Date: Sep 2002 Age: 51 Posts: 13 Member: 16067 Status: Offline Thanks Meter: 0	If you are in possession codes of administrator to this cards you will be able to remove, to add, to widen, to change statuses of files ( of course in due measure possibilities of memory of card ). If their you do not have, nothing you will make. I did not hear about possibility of cleaning up of not used cards. I greet. Przemo P

11-09-2002, 22:49	#7 (permalink)
VendorGSM Freak Poster Join Date: May 2001 Location: Romania Posts: 277 Member: 4660 Status: Offline Thanks Meter: 1	[QUOTE]Originally posted by Przemo [B]If you are in possession codes of administrator to this cards you will be able to remove, to add, to widen, to change statuses of files ( of course in due measure possibilities of memory of card ). If their you do not have, nothing you will make. I did not hear about possibility of cleaning up of not used cards. possession codes of administrator???? what is this??? I have many friends who working for some providers in security sectors and up now I don't hear nothing about this "possesion code" You are sure about that or is only teoretical????

11-10-2002, 14:11	#8 (permalink)
Przemo Junior Member Join Date: Sep 2002 Age: 51 Posts: 13 Member: 16067 Status: Offline Thanks Meter: 0	Access condition level coding: level: access condition: 0 always 1 PIN1 2 PIN2 3 not used 4-14 admin !!! 15 never Przemo P.

11-16-2002, 23:36	#10 (permalink)
Virus_GSM Crazy Poster Join Date: Oct 2002 Location: Above all of ya' ! Posts: 56 Member: 16312 Status: Offline Thanks Meter: 0	are this codes generated by the manufacturer or the provider? who knows? maybe we can figure it out somehow. regardz !

11-17-2002, 01:27	#11 (permalink)
nab No Life Poster Join Date: Apr 2001 Location: UK and PAKISTAN Posts: 643 Member: 4315 Status: Offline Thanks Meter: 1	I think you are wrong, if sim cant be erased/re-programmed in both pic and eeprom, how can it add names/number or store texts or allow change of pin code ???? is this making you guys think ? I hope so take care friends

11-18-2002, 23:16	#14 (permalink)
nab No Life Poster Join Date: Apr 2001 Location: UK and PAKISTAN Posts: 643 Member: 4315 Status: Offline Thanks Meter: 1	last point, sim card can be read and written i have done this today, i read it using a cheap reader, it read phonebok, telephone number for sim,sms messages and roaming info , all other basic params inc PIN code, BECAUSE PIN CODE WAS NOT ENABLED!, it also wrote these details to another sim.