DS2413 WRITING ISSUE

[meruguharishreddy]

I have EEPROM of model DS2431.

I am able to read the bit data from the eeprom using Arduino OneWire library.

I am also able to write to the eeprom.

But when I write to it I am not able to write it again. And also when I erase it, it has same issue that I cannot write to it again.

I want to know that. Is DS2431 Eeprom only write once?

If no how can I rewrite to it again, even after erasing it.

[Magneticdud]

It has a feature to become write once:

from the datasheet

As a special feature, the four memory pages can individually be write protected [...] Individual Memory Pages Can Be Permanently Write Protected

If like me, you found the DS2431 on a toner cartridge, maybe it has been write protected

[W0AHO]

I am using a Teensy 4.0 and a Teensy 4.1. They both with read the DS2431, but will not write to them. It will say that it is successful, but when read back nothing has changed. I have uses the Arduino Nano and the Arduino Uno, both will read and write OK.
Thanks