How to copy the chip ?
You can download attached file to have a check,hope it can help you.
How to copy the chip-2?
Difference Of CN900 Auto Key Programmer Series Tools
| Item Code | Item Description | Item Function |
| SK94 | CN900 Auto Key Programmer | CN900 key copy machine supports directly copy 4C,4D,and ID46 chips |
| SK94-B | Copy of CN900 Auto Key Programmer | CN900 key copy machine supports directly copy 4C,4D chips |
| SK103 | CN900 4D Decoder | With SK103,CN900 can copy 4D chip |
| SK123 | CN900 46 CLONER BOX | With SK123,CN900 can copy all types of ID46 chips(must open the ID46 authorization) |
| SK104 | CN900 Key Programmer with 4D Decoder | SK104=SK94+SK103 |
| SK124 | CN900 Key Programmer with 46 CLONER BOX | SK124=SK94+SK123 |