This is a quick release for those experiencing problems. Doing a full firmware restore takes time and will erase your files, so I though it would be relatively easy to add uninstall capability to the dual-boot installer. The instructions to boot the installer are the same, but the installation menu now allows you to choose between flashing dual-boot or original firmware.
- The problem of original firmware running slow is not fixed.
- The restoration is done by flashing the original 8K of SPL code. But this is the SPL taken from my A320 after restoration of original firmware v1.1. I'm almost sure this code is the same for all A320s out there, but obviously I cannot test it. Please report success (or failure).
I'm going to send modified versions of the dual-boot SPL to people that has reported the slowness problem. If the LCD initialization is the problem, I can skip it when booting into the original firmware.
Please be patient, keep in mind that I cannot reproduce the problem in my A320 and that makes things difficult. The newer A320 with the ILI9331 LCD is on its way from DX, but I bet it won't be here before a week or so.