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U-01Z/U-01PM/U-11PM FW Version
![Question](/en/uploads/FAQ_Q.png)
Question
I heard that when updating to D4-454, there is a limit to the firmware version of the intelligent module (U-01Z, U-01PM, U-11PM).
Please tell me how to check the firmware version.
Also, how can I update the firmware?
![Answer](/en/uploads/FAQ_A.png)
Answer
The firmware version is written on the light-shielding sticker of the ROM on the board.
(The U-01Z ROM is located in a location that is difficult to identify)
If you would like to update the firmware, please contact “Technical Support” below.
It will be a send hack method.
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technical support
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