We've noticed a few simple issues can cause flashing your car to fail so it's critical to watch out for these problems. - A 10-12 amp battery charger is CRITICAL to keep the voltage stable when flashing, if the voltage goes too low it can cause the flash to fail or brick the module.
- If your key's battery gets low and dies or you walk away, the key can become disconnected from the car and cause the ECU to lose flash mode.
- Make sure to disable bluetooth on your cellphone as the process in which it connects to the stereo can also cause the flash to fail
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