: Ensure the firmware version matches your screen's resolution (e.g.,
Always read out the current flash content using your programmer software (e.g., flashrom , stm32flash , or esptool.py ). Save the dump with a descriptive name like rr52c03a_backup_original.bin . rr52c03a firmware extra quality
). Installing the wrong resolution can lead to a "black screen" or distorted image. Power Stability : Ensure the firmware version matches your screen's
: Wait approximately 1 minute . When the light stops flashing and turns Blue , the upgrade is finished. the upgrade is finished.
