Hi, my BMW has no power at all going to it. The boot is locked with about £500 worth of tools and stuff in but the other doors are unlocked. I recently replaced ecu and when I did that the car started once and then stopped starting so I tried jump starting it and no luck and then I tested the battery it was on 8Volts. I shut the boot and it locked and then all the other doors diddnt. I thought it could’ve been the new ecu I put in so I put the old one back but it diddnt seem to make a difference. I can’t access the battery as it’s in the boot and I can’t get into the boot through the back seats or unlock it manually with a key. I don’t know what to do.
