That only reads/writes eeprom contents from 40h and up. It doesn't read/write the first 64 bytes (0000 to 003Fh) of the eeprom.
I'm after those bytes coz they contain the following:
0000 - 000B FLASH AUTHORITY ID COMMAND
000C - 0012 ORIGINAL IMEI
0020 - 0037 SP-LOCK BLOCK
0038 - 003A SECURITY CODE
003B - 003D ??? CONTAINS FF0000
003E - 003F CHECKSUM OF 0000 - 003D
Changing the IMEI wont do you good, some people say, coz it is checked with other location like in COBBA where another copy of IMEI is verified. Changing the original IMEI will give you "Contact Service" error.
I'm after the Flash Authority ID and the SP Lock Block, how they are computed.
I believe they hold the key to successfully upgrading the phone's MCU and PPM versions without lossing the signal.
By the way, using NokiaSP on 5110-5.28 and up will give you a messed up eeprom content. With 5110-5.24, it gives you the actual contents of the eeprom except the first 64 bytes.
Have anybody tried using it on lower version phones that gives the full eeprom content?
Cheers...