a collection of firmwares app notes and guides for simcom


34 Comments  →
   by Dost Muhammad Shah    34 Comments  →

SIMCOM– Firmwares

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Here I am trying to make a collection of firmwares and release notes for Simcom Sim900 and other Simcom GSM/GPRS modules

SIM900


Release Notes

SIM900A


Release Notes

 

SIM900B


Release Notes

SIM900D


Release Notes

SIM908


Release Notes

SIM—


Release Notes

Dost Muhammad Shah

Team Lead- Design & Development Engineer at Kindows Tech Solutions
Dost Muhammad specializing in Embedded Design, Firmware development, PCB designing , testing and prototyping. He enjoys sharing his experience with others .Get in touch with Dost on Twitter or via Contact form

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  1. Pingback: Sim800H with new hardware version and different firmwaresdms

  2. Hello Dost. I am not able to get BT working on my SIM800 module. When I query AT+GSV I get following response: SIMCOM_Ltd. SMCOM_SM800 Rev: 1308B02SIM800M64_BT This possibly means that BT firmware is loaded? If not, which file can I use from your firmware collection? Can you please advise how I can get BT to work? All BT related AT commands give “ERROR”. Thanks Reply
      • I tried AT+BTSTATUS=? and AT+BTPOWER=1 but in both cases I get ERROR as the response. My SIM800 module is made in India and is standard with PWR and RESET buttons, RING and PWR LEDs, etc. Basically I cannot get the bluetooth enabled. GSM works very well. I am using a small 12 V DC power adapter giving about 500mA. Please help. Reply
  3. Hi! I have a sim800 module and am trying to use its bluetooth capabilities. But any such bluetooth commands like “AT+BTHOST=?” is giving me an error response, so I’m assuming the firmware that’s preloaded doesn’t support bluetooth functionality. I have come across 1308B08SIM800M32 firmware, but how do I load this firmware?Any tool that may aid me in uploading the firmware? Reply
  4. Hello, I have sim800 with the firmware 1308B02SIM800M64 so it does not support Bluetooth. So if you have can you please upload the firmware to support Bluetooth. Reply
  5. Firstly, all the information you have put is really useful. Thanks. I wanted to know, what is the difference between 1137B02SIM900M64_ST_ENHANCE and 1137B02SIM900M64_ST_ENHANCE-EAT? Also, where can I find SIM900 AT command set v 1.08? Which is the latest firmware for SIM900 which has even the GPS related commands? Reply
  6. Furt of all, all the informatio you have put is really useful. Thanks. I wanted to know, what is the difference between 1137B02SIM900M64_ST_ENHANCE and 1137B02SIM900M64_ST_ENHANCE-EAT? Also, where can I find SIM900 AT command set v 1.08? Which is the latest firmware for SIM900 which has even the GPS related commands? Reply
  7. Hi, thanks for your post But I’m a little bit confused that what is the difference between normal version and enhanced version of these firmware? For ex: 1137B13SIM900M64_ST and 1137B03SIM900M64_ST_ENHANCED Can they work together? Reply
  8. hi, Anybody please tell how to use DTMF decoder inside the sim900. I have sent AT+DDET=1 and it response with OK. But when I make a call to tmy SIM900 and press some key on my the mobile phone, I received nothing. I have tried all the firmware for SIM900 module posted here, but nothing happened. Thanks you Reply
  9. i tried to upgrade sim900A with costumer upgrade tool but it given error as bellow error during load command during flash memory check target setting Reply
  10. Pingback: latest enhance firmware for SIMCOM SIM900 module (1137B03SIM900M64_ST_ENHANCE ) | DMS

  11. sir, I'm trying to send an image to a phone using MMS. I am able to get to the point where my serial monitor says “CONNECT”. From my understanding of the SIM900 MMS manual, that means that the module is now ready to receive data. I am not sure about how to get the module read the data. I am trying to get an image from the SD card to the module. Right now, I'm using this to read from the SD card and send it to the SIM900 module: File dataFile = SD.open(“datalog.txt”); // if the file is available, write to it: if (dataFile) { while (dataFile.available()) { Serial.write(dataFile.read()); } dataFile.close(); } It's not working. Eventually, the module waits there for the time specified in the AT command and prints “ERROR” on the serial monitor. If anybody could offer some help, it would be GREATLY APPRECIATED!! thanks Reply
  12. i got my sim900 upgraded. i am trying to send a picture from an SD card to a phone through MMS but it is not working. kindly assist me Reply
  13. i have sim 900a module and also has 32kb flash memory.I tried all 32kb firmware but i can not use the DTMF serivices.Please give me the firmware for the sim 900 with flash 32kb memory. Reply
  14. Hi! I'm want Email using SIM900A module. When I type “AT+EMAILCID=?” then it shows ERROR. Do you've a Email Firmware for SIM900A because you provided Email Firmware not supported to my module. Please guide me If I want to make this API or Firmware for my SIM900A module. Thank you. Reply
  15. Hi! Awesome collection, do you happen to know on which version the 1137B01SIM900M64_ST_ENHANCE firmware is based on? Will there be a release note for it too? Reply

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