08 535i n54 Trans xhpflash issue

[DB615]

I have an 08 535i sport lci without paddle shifters. I submitted these issues to xhpflash and in the past 48 hours the only response I have received was to read the guidelines on how to flash properly. So I'm pretty disappointed in the product support category for xhpflash. I an still waiting on another response and will keep this updated. I have done everything that the guidelines say to do. Did not open the door, radio, nav, everything was off. Battery voltage has been fine. Headlights off. Using correct cable. All compatible software.
The software says the car is compatible with the vin entered.
I successfully backed up the stock trans using xhpflash. I bought the general license and stage 2 flash. As soon as I go to install the new flash, it aborts and I have to do an emergency flash. Have tried multiple times.
In the email, I was told "that's what happens when the flash fails."
Well no s***
Any 535 guys that can help me with this issue further?

[DB615]

Working with Clemens from xhp right now hoping to get this solved. Will keep everyone updated

[DB615]

Want to thank Clemens and all the guys on here for the responses. I was able to find the issue and flash was successful. This was my fault and place blame only on myself not xhpflash. I did NOT have proper power source going to the car during flash and would crash during block 2. This did NOT have anything to do with jb4. Made sure to hit map 0 to disable. So for future reference, definitely make sure your car has proper power source as it can easily cause huge issues. Very temperamental, as I just found out. Thanks again to everyone on here, one more successful mod. Shout out to xhpflash for a proper tcu flash and a great improvement.

[pbonsalb]

What would the trans flash do for a 535xi with jb4 on map 5 but otherwise stock? Any reason to bother? It's the car my wife drives so I drive it only occasionally. Trans is regular version. No paddles. I think the xi was not as advanced.