Thread: IMEI changing problem

where i can buy the flash ics?

is posible disable the OTP check?

where i can download the .fls of the C55 v24?

any idea to change the imei in the C55/C56?

In you dont know how work Siemens phone dont tell imei registering to network cannot changed. Im test my patch IMEI to network from EEPROM not from OTP Area.

Best reards,
Andrew911

http://www.pine.spb.ru/temp/FF_172C_24911.rar
http://download.siemens-club.ru/files/fullflash/c55full_v24_172C.rar

Check offset 3A7398: 88908880 in fubu file - it is correct 100%
If you use Freia addressing - add 0x800000 to all offsets (for C55).

;Flash patch for C55 v.24 phones
;(c) Sinclair

3A7398: 88908880 FA8B8465
0B6584: FFFFFFFF E6FE9025
0B6588: FFFFFFFF E6FF2D02
0B658C: FFFFFFFF FADC443B

;0B6590: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF 20494D4549206E6F7420666F756E6400 ; new IMEI as String, last byte must be 0x00, originally here is string " IMEI not found"

I don't know, is this "new IMEI" shown to operator, or not, but it is shown in any program, that can read IMEI from phone. After applying this patch to phone, EEPROM and OTP IMEI still the same, like before patching - You can check it with Freia.
If they are different - phone not work, but there not needed change EEPROM or OTP IMEI with this patch.

EEPROM and OTP IMEI still the same?

its work?

If it is short, IMEI in Siemens C55 to change it is IMPOSSIBLE. Now I explain, as as. In Siemens C45, and earlier phones, IMEI it is stored only in area EEPROM, therefore it changes on absolutely anyone without any problems, at unlock.

In Siemens A50 and in more senior models IMEI it is stored already in two places, in EEPROM and in a special, unitary programmed microcircuit (PZ and * 1059. If with change IMEI, stored in EEPROM, problems both were not, and are not present to change contents of a microcircuit of a ROM only program methods it is impossible.
And the insertion of phone compares these two IMEI and if they do not coincide phone does not work. From the aforesaid it becomes clear, that if to alter A50 in C45 (there is such "technology", only, except for zalivki fullflesha, it is necessary still at least perepajat a pair rezistoro and * 1074 That change IMEI in such phone becomes possible because insertion C45 of concept has no about existence IMEI, taking place still somewhere, except for area EEPROM. So, only theoretically, decisions of " our problem " two, but I yet did not see concrete realization of any of them. For now we shall consider only theoretically possible variants:

1.

Pls post the details Andrew

you have the patch??

How i disable the otp check??

i am using FREIA, it does not works