for those of you with a dead Receiver clone or not clone. U7 MEMORY CHIP is the same no matter the version. Follow the information from ENGEL RS4800 but you must disconnect U7 MEMORY CHIP Terminal 3 to eliminate the signal from the main Board. I use a N/O mini push bottom from RadioShack. I Repair my two babys in 40 min. Your Receiver runs cooler if you turn off the NLB power. You only need that on if you use a motor. Mount the push bottom on back of the unit or cover. And The U7 MEMORY CHIP Terminal 3 is WP Only need power signal for seconds is the Factory default