So, now it is resolved, it is time to tell the saga of my MIB2 to MIB2.5 upgrade. Its something I had ummed and ahhed about for some time, but a cheap scrfeen caught my eye on eBay. £150 was too good to pass up. So it was promptly ordered along with a fresh SD card. All files we're downloaded and prepared as per the github and @JR RS guide. I very nearly bought myself a new battery charge from Amazon but thought I would save a few pennies and I borrowed a battery charger from a neighbour. This I think was the major mistake of this story! One evening I set to work. All seemed to be going well. Progress was happening as it should and the new screen was swapped in. And then... Dammit. That looked catastrophic. But this screen is expected (without as much additional info I must note) and all you have to do is press skip. But the screen did not respond. The MIB unit fans were running flat out and it wouldnt turn off, reboot or anything. Hard reset pulling the fuse just brought me straight back to here. In the time I was pulling about scratching my head thinking of what to do next, all the lights went out.... The borrowed battery charger from the neighbour just wasn't up to the job of keeping the battery topped up. (The only root cause for the error I can fathom is that at some point during the flashing, the voltage reduced to a point that power dropped from the MIB at a crucial moment.) My inital thought process was that the screen was faulty as the digitizers can be fickle. So this screen was returned and the next cheapest screen sourced. A few days later when it arrived I plugged it in and....nothing, straight back to this screen. So I then reached out to the Guru that is @pab567. And I must say the service and support I received was second to none. He guided me through connecting via UART so that he could remote access to me to try to reflash the unit. No joy. The EEPROM just couldnt be communicated with. So the unit was packaged up and sent to Poland for some open heart surgery. Unfortunately this was not successful, having successfully recovered the RCC, the MMX recovery failed. And direct programming of the EEPROM also failed and it was deemed uneconomical to repair. ☹️ PAB sourced a second hand native MIB2.5 skoda unit locally to him for signicantly cheaper than I could source in the UK, and for a very reasonable fee prepared it to be plug and play for my car. This was delivered today and we are now back up and running. The final piece was to install the alternative trim panel to close in the gap above the screen. This was sourced from eBay. I popped a bit of the current trim off to find the colour code and managed to find a match for a pretty reasonable price. Note the part numbers are 3V2858418E for no ambient lighting and 3V2858418F with ambient lighting. THe following 3 digits are the colour code, in my case NF8. So the moral of the story is, don't cheap out on not buying a battery charger, check the state of charge before starting, and dont try to do software flashes in the dark!