# SD card interfacing with Q2686rd GSM module using SPI

**URL:** <https://forum.sierrawireless.com/t/sd-card-interfacing-with-q2686rd-gsm-module-using-spi/7059>\
**Category:** Legacy AirPrime modules\
**Created:** [February 25, 2014, 9:24am UTC](https://forum.sierrawireless.com/t/sd-card-interfacing-with-q2686rd-gsm-module-using-spi/7059 "2014-02-25T09:24:06Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![nagaraju](https://avatars.discourse-cdn.com/v4/letter/n/f07891/32.png) [@nagaraju](https://forum.sierrawireless.com/u/nagaraju)\
**Post date:** [February 25, 2014, 9:24am UTC](https://forum.sierrawireless.com/t/sd-card-interfacing-with-q2686rd-gsm-module-using-spi/7059/1 "2014-02-25T09:24:06Z")

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hi sir,

Iam using Q2686RD Gsm module. iam interfacing SD card with Gsm module with SPI Protocal but write command and read commands not success for trying so many times.  
the commands for write and read (24-write ,17-read)

can any one explain what is the problem behind this…  
thank you in advance.

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