SIM800 Upgrade

From ElectroDragon Wiki
Revision as of 16:16, 12 August 2021 by Chao (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
  • Normal SIM800 non-bluetooth can be upgrade to bluetooth version
  • the module type silk print is S2-1068S-ZIL1D
  • you can also upgrade other simcom modules or customized software by the same

before is

AT+GMR
Revision:1418B07SIM800C24

after is

AT+GMR
Revision:1418B07SIM800C24_BT

and bluetooths is working fine

Files

wiring

Wiring is VBAT, GND, TXD and RXD, usb-ttl adapter use CH340, speed up to max. here 900K

Mode select

  • for flash, hold down pwrkey then power ON (attach the test-pin), up to 20 seconds
  • for normal boot, power ON first (attach the test-pin) then hold down pwrkey up to 3 seconds