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  1. C

    Simcom Sim908 firmware

    Here is the firmware image and it appears to be the latest. As far as I know it is not possible to recover the image from the device. Also I no longer have an upload tool. C
  2. C

    JTAG chain incompatibility

    Yes, this is quite common, particularly if the jtag chain runs from a device which does use TRSTN to a device which doesn't (or the other way around). This is because the TDO timings are different for the different devices. I found that putting a 10k pull-up resistor on each TDO cured this...
  3. C

    Which one is Good to Send MMS... SIM900 or SIM306

    Hi Sunil Here are the MMS and general AT command sets for sim900
  4. C

    Which one is Good to Send MMS... SIM900 or SIM306

    Hi Sunil The Sim900 family all have MMS built in as long as you use firmware build 08 or later.
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    Which one is Good to Send MMS... SIM900 or SIM306

    Well, The Sim306 is being withdrawn if not already, so I would probably recommend the Sim900 have a look at this thread: https://www.edaboard.com/threads/182804/

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