My makerbuino was working fine, until recently the screen stopped working. The back light lights up, and occasionally a few random pixels activate. I can hear the music and sounds from the games playing when i push random buttons. I’ve checked many of the connections for bridging using a continuity tester and also re-flowed the solder for a bunch of the joints that I thought might be problematic.
I did notice when we were building it that in the step where you turn on the screen part way through the build, we saw text, but every other line was off. We completed the build, charged the battery, inserted the SD card, and then everything worked fine for a few days. The micro USB connector broke off and when I attempted to re-solder it to the USB charging board, it broke fully off. At this point we noticed that the screen was no longer working. The USB charging board only connects to the battery, so it seems to me like the screen is a separate issue?
We did assemble the kit with lead-free solder, so our iron was set to 400 F. Did we cook something?
Any ideas on what we should try?
Thanks for any help