dt400

[ozgur74]

Hello,
did someone know how to change ipei of DT400 .
I know wher it is , and when i change it, in the eeprom , the dect say : eprom error ?
?

 

[etompau]

For what reason do you want to change the IPEI number???

 

[ozgur74]

i need to surch .
i need to know what is the incidence of ipei , and what he look for to determine if the ipei is correct or not .

 

[etompau]

The IPEI should be correct from the factory...
Basically the IPEI number consist of 5 digits indicating the manufacturer of the unit, 7 digits for a serial number and one checksum digit.

 

[ozgur74]

yes i know this .
It's like this : EEEEE PPPPPPP C
But it'isn't my question .
With an alcatel dect , i change the ipui in the eeprom , the mobile is fonctionning correctly .
But with ericsson mobile when i change it in the eeprom , it doesn't work, so in the eeprom there is something else related ipei wich control the integrity of it, but what ?
What is the content of the eeprom ?

 

[etompau]

I would say that this is cleary reverse engineering, and that the contens of the Flash prom is copyright protected.

 

[ozgur74]

OK
it's not for copy , it's for undertand how it work and how the mobile control if the ipei is correct or not .