I Test these command for db2010,db2020 ( k800,k750) and it work.
Before any work make a backup GDFS
There are two commands for gdfs :
readgdfs: Block number and Block lenght
writegdfs: Block number and Block lenght
These commands use for replace or read gdfs information for example:
Reset Total call time , Change CDA , Change Languege pack , Active GSM , Read bluetooth adress , Active battery menu , active AMR play ,...
Important and useful command:
Read Total call time:
gdfsread:00020cd4
Reset total call time db2010:
gdfswrite:000200C9C00000000
Reset total call time db2020:
gdfswrite:00000099000000
gdfswrite:0000009B00000000
gdfswrite:0000009D00000000
gdfswrite:00020E000000000000000000
gdfswrite:00020DC80000000000000000
Change CDA db2010:
gdfswrite:00020CBCVALUE
Value in all commands must be in HEX
Change CDA Ver db2010:
gdfswrite:00020CBDVALUE
Change language pack db2010:
gdfswrite:00020CBBVALUE
Active GSM850 MHZ db2010:
gdfswrite:000000AA0BFFFFFFFFFFFFFFFFFF00
Active GSM900 MHZ db2010:
gdfswrite:000000AA00FFFFFFFFFFFFFFFFFF00
Read bluetooth address db2010,db2020:
gdfsread:0000002B
Active battery Menu db2010:
gdfswrite:000208BBFFFFFF01010101010101FFFFFFFFFFFF FFFFFF01010101FFFFFFFFFFFFFF
Active play Amr db2010:
gdfswrite:000000a60001020405
Read original units(imei,...) gdfs db2020:
gdfsread:00020e5a
gdfsread:00020e48
gdfsread:00010851
gdfsread:00000006
gdfsread:0000000E
gdfsread:00000013
gdfsread:0000001C
gdfsread:00000018
gdfsread:000000AA
You can find more command and write it.just you need address and block lengh and HEX translator.
IF you have other gdfs command please write it and complete this topic. Thanks
Caution : if network dont work use the commands says Mr justme.