Supported Models
A900 ESN changerHow To Use
SPH-A900 ESN Change
First connect the A900 in the QPST EFS Explorer 2.7
Connect First A900 phone in QPST EFS Explorer of 2.7 program
We put the spc and entered the nvm folder \, seeking the $ SYS.ESN
Put spc and enter in nvm folder, search $ SYS.ESN
Copy the file $ SYS.ESN to your desktop and open it with a hex editor (ultraedit32, hexedit, Hx workshop) I use UltraEdit.
Copy the file $ SYS.ESN to desktop and open with Hex editor, i use ultraedit32
We read the ESN backwards in groups of two, in the above example would
20F945CF, and as 16FB8F3E cheksum
Read ESN in copulate of digits, invest, in example esn is: 20F945CF and checksum 16FB8F3E
Now use the calculator for the new esn checksum, for example 20304050
Now use checksum calculator for the new esn, by example 20304050
And edit the file in hexadecimal
And edit file in hex
ESN 20304050 50403020 Esn for edit
Checksum for edit 25B0BE0A 0ABEB025 Cheksum
Save the file and we went back to the EFS explorer $ SYS.ESN replacing the original file on the edit
When you restart the cel will have the new esn.
Save the File and upload again EFS Explorer to replace the original $ SYS.ESN by the $ SYS.ESN editef
When subtracting phone, phone have new esn.
Use it in accordance "with your local Laws
Samsung A900 ESN Changer / Rebuild
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