Predrag Balorda Change your cover photoUpload Change your cover photoUpload Predrag Balorda This user account status is Approved About About Posts Posts Comments Comments Ok after a LOT of searching I managed to find 24MB firmware (the ones available here are all 16MB) and… On sim800 series firmware update & appnotes On the sim800L (so-called esp-800L board https://a.aliexpress.com/KBRUiY3A) I cannot get any response to AT commands through putty even though the… On sim800 series firmware update & appnotes
