# Micro SD Support on MangOH **URL:** \ **Category:** mangOH Green\ **Created:** [May 31, 2016, 6:40am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91 "2016-05-31T06:40:22Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [May 31, 2016, 6:40am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/1 "2016-05-31T06:40:22Z")
Hi I am trying to use Micro SD card in MangOH board. I have 8 gb sandisk / samsung micro sd card but not detecting. Please let me know supported SD card type and size. Thanks ---
**Author:** ![dfrey](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/dfrey/32/303_2.png) [@dfrey](https://mangoh.discourse.group/u/dfrey)\ **Post date:** [May 31, 2016, 2:54pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/2 "2016-05-31T14:54:22Z")
Hi Niladridm, Have you used the `mux` command to select routing SDIO to the MicroSD card slot? Specifically the command is `mux 9`. Try running that command and then insert your MicroSD card. Please report back to let me know if this solves your problem or not. Thanks ---
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [June 1, 2016, 5:42am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/4 "2016-06-01T05:42:20Z")
Thank you dfrey. can you please let me know how do I execute this command? is this terminal command or AT command? Thanks ---
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [June 2, 2016, 6:25am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/5 "2016-06-02T06:25:38Z")
Hi, I have tried to execute this command in Terminal and AT Shell but both the case it is showing invalid command. ---
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [August 24, 2016, 4:13am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/6 "2016-08-24T04:13:43Z")
Hi Devid, After installing Mux Control Service and tools along with Gpio Expander Service I am able to execute mux 9 command and getting a response that “Executing 9: Select the microSD Card on the SDIO mux Success” but I am unable to find my sd card in the /dev. please let me know how to mount the sd card? ls /dev/sd\* - is returning nothing to me Thanks ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [August 24, 2016, 1:18pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/7 "2016-08-24T13:18:49Z")
are you using SD card provided in the dev kit? ---
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [August 24, 2016, 1:32pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/8 "2016-08-24T13:32:31Z")
Hi Ashis, no it is 8gb sandisk class 4 microsd. Tried with FAT16 and FAT32 format but not detecting. Thanks ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [August 24, 2016, 1:47pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/9 "2016-08-24T13:47:42Z")
Can you check the one that was shipped with the board first? Not all uSD work with mangoh. We have seen some issues with some SD cards and think most likely it is related to the TI as uSD card multiplexer. ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [August 24, 2016, 3:16pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/10 "2016-08-24T15:16:19Z")
Also, please wait for release 12 firmware (to be released soon) as that should have part of your uSD problem fixed. ---
**Author:** ![spastor](https://avatars.discourse-cdn.com/v4/letter/s/35a633/32.png) [@spastor](https://mangoh.discourse.group/u/spastor)\ **Post date:** [August 25, 2016, 8:06am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/11 "2016-08-25T08:06:44Z")
Hello Niladridm, I opened a ticket on this forum and WP Series forum about SD card problems (not quite the same problem). [https://forum.sierrawireless.com/viewtopic.php?f=178&t=9885&sid=2e9a4ce0ef47d18dbeae25a5a1d5e2f9](https://forum.sierrawireless.com/viewtopic.php?f=178&t=9885&sid=2e9a4ce0ef47d18dbeae25a5a1d5e2f9) **_I am pleased_** to see that the next version (version 12) may solve problems because my post went unanswered. For SD card detection with release 11: load driver: > insmod /lib/modules/3.14.29ltsi-c14b887744\_39dcf2256d/kernel/drivers/mmc/host/msm\_sdcc.ko Mount device (example) > mkdir -p /mnt/userrw/sdcard > /bin/mount -t auto -o sync /dev/mmcblk0p1 “/mnt/userrw/sdcard” Thanks ---
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [August 25, 2016, 9:11am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/12 "2016-08-25T09:11:23Z")
Hi spastor, Thanks. Good to know that you are able to mount the sd card. I am able to load the driver without any issue and selected the SDIO using mux 9 even in my board Jumper setting is also proper but still I am unable to see mmcblk0p1 in dev. Dont know whats is the wrong. I have tried with 8gb Transcend, Sandisk and Strontium microSd card Fat16 and Fat 32 Thanks ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [August 25, 2016, 3:03pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/13 "2016-08-25T15:03:13Z")
Have you tried the SD card the came with the dev kit? ---
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [August 26, 2016, 2:58am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/14 "2016-08-26T02:58:09Z")
HI Ashish, Unfortunately I lost the sd card and reader too which came along with the kit. Hope release 12 will support different make and size of SD card. Anyway if you share me the make and model supported by release 11, I shall try to get one. Thnaks ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [August 26, 2016, 3:22am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/15 "2016-08-26T03:22:57Z")
Hi Nila, Ill send you a list of cards that work tomorrow. Release 12 will not fix the issue you see, as it due SD mux used on DV4. It seems to cause issues with some SD cards. cheers ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [August 26, 2016, 11:21pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/16 "2016-08-26T23:21:36Z")
I tried the following two cards that I had available with me today: > **[PNY 4 GB Class 4 microSDHC Flash Memory Card P-SDU4GB4-EF/BB - Walmart.com](https://www.walmart.com/ip/PNY-4GB-microSD-Memory-Card/10247092)** > > Free 2-day shipping. Buy PNY 4 GB Class 4 microSDHC Flash Memory Card P-SDU4GB4-EF/BB at Walmart.com [http://industrial.apacer.com/en-ww/SSD/Industrial-microSD-R1](http://industrial.apacer.com/en-ww/SSD/Industrial-microSD-R1) (1Gb version) Both of them worked. ---
**Author:** ![niladridm](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/niladridm/32/91_2.png) [@niladridm](https://mangoh.discourse.group/u/niladridm)\ **Post date:** [September 11, 2016, 4:46am UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/17 "2016-09-11T04:46:55Z")
Hi Ashish, I have tested with different SD card and below are working good 1. PNY 4GB 2. Strontium 4GB/8GB 3. Samsung 4GB/8GB Thanks ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [September 11, 2016, 10:02pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/18 "2016-09-11T22:02:21Z")
thanks for the update cheers, Ashish ---
**Author:** ![dingo](https://avatars.discourse-cdn.com/v4/letter/d/c2a13f/32.png) [@dingo](https://mangoh.discourse.group/u/dingo)\ **Post date:** [December 17, 2017, 4:17pm UTC](https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/19 "2017-12-17T16:17:20Z")
You can add SanDisk Ultra Plus microSDXC UHS-I 64Gb as working also… Could imagine the whole SanDisk SDXC line might work, now is there a limitation on size??? mmc0: host does not support reading read-only switch. assuming write-enable. [16.966915] mmc0: new high speed SDXC card at address aaaa [16.997375] mmcblk0: mmc0:aaaa SL64G 59.4 GiB [17.103555] mmcblk0: p1 [17.254143] sps:BAM 0x12502000 is registered. [17.257897] enable\_store: android\_usb: already disabled