[SOLVED] sim900A dosent work after update

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dizgah

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hi dear friends
i have sim900a worked fine,i need NTP & flash & midi applications that dose not support my last frimware,therefor i give latest frimware with this functions from simcom support & download its frimware.
module's frimware update succesfully but after it ,it dosent work
when i turn it on only a few weird character send (fewer than usuall ) i test all baudrate ,& even try to change baudrate but it dosnt work.
has any body any suggestion?
best regards
 

hi again
i updated it again & it dosent worked ,after some minutes i tested again & it successfully answered.
i am uploading new updater tool + learning pdf
 

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  • SIM900 Series download Tools Customer 1.8.exe
    164 KB · Views: 78
  • SIM900 series modules Download Tool_V1.8_User Guide.pdf
    161 KB · Views: 152

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