star c4 diagnostic tool support wifi with v2022.03 software hdd/ ssd in brand new lape3421 i5 8g for mb c4 cars trucks scan

never insert batterries into the c4 multiplexer, even the screen shows" check batteries" the new generation for diagnostic equipment for all current and new coming vehicles as for china copy c4, you can use any la with sata hard disk instead of that heavy touch-screen computer. the new is better than c3 and it can connect mb internet to update and to programe and to set codes. it is including diagnosing, programming, simulation studying, repair information, automotive maintenance, technical service bulletin and so on..syi