FQA about upgrade firmware
Posted at:2016-12-17 17:57:25 Edited at:2017-02-04 17:39:30
Q: Should my display module upgrade to V3.9C?
A: If the module has Flash Chip installed, and the firmware is V3.5B/3.6B/3.7B/3.8B/3.9B, you better upgrade it to V3.9C, the early version had a bug caused by the delveopping tool, that made the module enter bootloader when cold power on, and you will see the screen is blank, but it work if you turn the power ON/OFF/ON in few seconds, upgrade this module is easier than regular, you don't need to use command "BLUBL}" because it will enter bootloader by error when cold power on.
Q: What the different between V3.9B and V3.9C?
Q: Which module's firmware is upgrade able?
A: Only the modules' firmware version suffixed with "B", "C" can be upgraded.
Q: What is the suggested way to upgrade the firmware?
Q: Can I use I2C or SPI mode to upgrade firmware?
Q: Can the module be restored if failed to upgrade firmware or firmware crashed, and it blank?
Q:Can user upgrade a bunch of display module at once?