https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=SIM800_Upgrade 2026-06-05T06:41:34Z Revision history for this page on the wiki MediaWiki 1.37.2 https://w.electrodragon.com/w/index.php?title=SIM800_Upgrade&diff=32026&oldid=prev 2021-08-12T08:16:13Z

<p></p> <p><b>New page</b></p><div>* Normal SIM800 non-bluetooth can be upgrade to bluetooth version<br /> * the module type silk print is S2-1068S-ZIL1D<br /> * you can also upgrade other simcom modules or customized software by the same<br /> <br /> before is <br /> AT+GMR<br /> Revision:1418B07SIM800C24<br /> after is <br /> AT+GMR<br /> Revision:1418B07SIM800C24_BT<br /> and bluetooths is working fine<br /> <br /> == Files ==<br /> * firmware 1418B07SIM800C24_BT<br /> * flash tool SIM800_Series_download_Tools_Customer_v1.23/<br /> * all you can find at https://github.com/Edragon/SIMCOM_SIM800-upgrade<br /> <br /> == wiring ==<br /> Wiring is VBAT, GND, TXD and RXD, usb-ttl adapter use CH340, speed up to max. here 900K<br /> <br /> == Mode select ==<br /> * for flash, hold down pwrkey then power ON (attach the test-pin), up to 20 seconds<br /> * for normal boot, power ON first (attach the test-pin) then hold down pwrkey up to 3 seconds<br /> <br /> [[category: SIMCOM]]</div>

Chao