What if I reset my projector lamp hours without actually replacing the lamp? Will the counter keep stuck at 0 until I replace the lamp (BenQ in this case)? - Quora
common projector problems
DLP® Projector
How to Reset an Optoma Projector? - Pointer Clicker
How to do a hard reset on ACER PD1320Wi DLP WUXGA? - HardReset.info