Upgrade firmware Growatt 4000 TL3-S Home › Forums › Solar Power › Upgrade firmware Growatt 4000 TL3-S This topic has 3 replies, 2 voices, and was last updated 1 year, 11 months ago by Ronald. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts 2023年5月27日 at am12:51 #8702 RonaldParticipant I have the same problem with my Growatt 4000 TL3S inverter. Please help us. 2023年5月27日 at am1:07 #8703 RonaldParticipant We need the correct firmware for model 4000 TL3-S 2023年5月29日 at pm5:07 #8721 RonaldParticipant Growatt 3-6K TL3-S Firmware Download Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In