![]() If the calibration only flash continues to fail: To recover from a failed calibration only flash, turn the ignition off, wait 30 seconds, turn the ignition back on, wait a further 10 seconds, the retry the calibration only flash. Calibration FlashĪ calibration-flash failure is not critical and will generally not result in an unrecoverable controller. The only way to recover the controller is to disassemble it and physically remove, reprogram and replace the flash chip on the main circuit board. If flashing fails with a “no communications” error then the controller has probably been rendered inoperable and unrecoverable. If power has been removed from the controller, it may only be recoverable if the flash was at least 15%-20% complete and the communications portion of the operating system was reprogrammed to allow the controller to continue to operate in dead poll mode. Retry the full flash procedure until it is successful. As long as the controller remains powered up, EFILive’s proprietary boot loader running in the controller will continue to wait for a successful full flash procedure.
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