This is my solution for green single PCB with bluetooth Multidiag pro+ Chinese.
These are the photos of the modifications i made.
EDIT: 30v 500Mw ZENDER diodes.
If you are still having problems reading old BMW before 2000.
20-pin under the hood connector.
Do this, bridge the pins that appear in the photo.
NOTE: How to choose diagnostic tools for DS150E?
safe with T-C-S C-D-P pro china clone:
or safe with Multidiag pro china clone:
Multidiag pro 2015R3 DS150E Bluetooth with a 4G memory card
(Full kit) Multidiag pro 2015R3 DS150E Bluetooth with a 4G memory card, with all cables
Multidiag pro with double PCBs:
Multidiag pro+ without Bluetooth, 2015R3 DS150E, cheapest,
Mutidiag pro Bluetooth 2015R3 DS150E, with a 4G memory card