How to use 'Return to Stock'

This video guide demonstrates how to return an ECU to Stock.
NOTE: Using this feature will erase your bin file key.
This feature is only to be used upon advice by a Woolich Racing Support Technician. If you use this feature without being advised to, we will not be able to replace your bin file key.
Support tickets: www.woolichraci...

[@blengravers]

Thanks, I'm wondering if a reflashed ECU could revert back to its stock setting on its own?

[@ZX10RArcher]

No - it's impossible.

[@ZX10RArcher]

They too, also answered this for you a week ago on your original question:
Woolich Racing
1 week ago
Once an ECU is flashed, the contents of the Bin File do not change. The ECU can not be read/written to, in normal operation. It can only be written to (changed) by connecting it to an ECU flashing tool. It is not possible for the ECU to 'revert' to stock without some sort of interface to write in the stock bin file. Your issue may be related to your ECU having 2 sets of maps (like most Kawasaki's), and it is possible that you changed one set of maps, but the ECU is actually using the other set by default. These are known as Map 0 and Map 1. This may be the reason your bike appears to be still running on the stock maps after flashing some changes to the ECU.

[@freaknationphotography5051]

So every time we revert the ecu back to stock trying to clear out someone else's work we are going to have to buy the bin file every time or just contact yall so we can have the file back?

[@WoolichRacing]

If you have an ECU that has been TuneLocked by another tuner with Woolich, then what you need to do is read the ECU, then send us a key transfer request. Once the key transfer has been approved, open up a new stock bin file (NOT Return to Stock) and flash it. This will use the existing key that's on the ECU.