Latest Firmware for SIM900B module to utilize GPIO pins

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speedEC

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Dear All,

I need to use GPIO pins of SIM900B module. I have the firmware : SIMCOM_SIM900B
Revision: 1137B05SIM900B32_ST. Do I need to update firmware to use GPIO pins of GSM Module?

thanks
 

anyone can help me in this regard?

thanks
 

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