So i have a 1.8t Awt with 8E0906018B  0003 ecu (me7.5). I did checksum before flashing but it looks like the checksum was incorrect because my car wont start now. This was my first flash and also my first brick. Now i need to get the ecu unbricked and write the ori bin on it so i can go to work tomorrow. mpps wont find ecu, nefmoto connect to ecu about 5% chanse it connects (got it to connect twice) and even if it connects its only in kwp2000 not boot mode, and because of that when i try to flash nefmoto gives me an error that about immo not being off/being incorrect) and then disconnects and wait for me to reconnect ecu before continueing, but well after that it cant connect. i tryed connecting in boot mode (ecu being in boot mode with the pin24 grounded) and still nothing. tryes to upload bootstrap but fails, and i only got it once to upload bootstrap and then the next part came where it couldnt connect/contiue to connect to ecu. I have mpps v13 dongle and a ebay ftdi kkl cable. i did my best with the bench and wires i have so it does something but not enough. i also downloaded Vag eeprom programer v1.19 but that too says ecu not found(did it with out boot modeing ecu). also when i first tryed grounding pin24 i tryed to solder a very thing wire in front of the pin where the is a better place to solder to, but failed to get the wire to stick to the solder and that part looks a bit burnt. Basically solder is no more there or if it gets connection in that part. after that it still got connection in nefmoto with a lot of luck but still refused to write becuase of eeprom immo being on. So could yall tell me am i screwed or not? Pay day is far away to get a new ecu and my work place is pretty far away. Any help is appriciated!

Is the checksum how build in to the flashing? do i need to separetly checksum it or it does it automatically before flashing? I will try it out tomorrow when i get back from work.

I had to buy another car from a friend on a loan so i can go to work got my self a b7 1.9tdi. rusty ass hell and the trunk is midway painted but it does the job until i get my ecu working. will report tomorrow how it went.

So a few problems came up with the software. The built in immo off didnt work even tho it said it should be off. The checkmate button or checksum corrector doesnt want to open(apparently no exe or something for it). But good news is that i got the eeprom.bin file. I was also able to write the .bin to my ecu but with no luck the car didnt start. The "ori" bin i have or i read from the car already had a stage 1 tune on it, and i want to put it back now to get my car working again. But guestion is that do i need to checksum the file i read from the ecu when it has a stage 1 on it?

Immo off is done in eeprom not flash with the tools I uploaded, so if you loaded a flash file and tried turning off the immo with a eeprom tool yeah its not going to work. You are moving way too quickly and the situation you are in reflects that. Reading out a tune file without knowing anything about it could be your problem too, sometimes tuners change things or add some custom code as a deturrent to prevent people from reading out their tunes. For example revo puts your car in forever limpmode if you try to do anything thru the port with their files. MPPS will encrypt the tune and save it as a non editable file, so if you did a port read of a file that has a no read tag in it that would be something to look into as well. That would be the first thing, Second learn the difference between eep, flash and mpc otherwise you are going to have a rough time. Get the part number off the ecu and post it here I can provide you with the correct original file to bring the ecu back to life.

I used the eeprom tool to immo off the eeprom bin. But after i checked if it changed or no it did not. Also all the programs started working slowly for some reasone. Checksum worked apparently. I made another thread in checksum request and somebody said everything is ok and no need to checksum it. Also im sorry if i dont explain things right, english is not my first language . But you mentioned that some tuners shortly said lock the bin so i cant modify it, but i got the bin and was able to modify it in tunerpad. So to get my car back to work i need and actual ori file (not tuned like mine was already) and flash that on the ecu? Also do i need to checksum the ori bin file?

Im putting in this reply the bin i read from the ecu first. Im also including the one that is apparently correctly check summed