My first thread. I flashed a 10.2 rom over my 10.1 using Goo Manager which I have used before with success. I wiped cache before flashing. I thought all had gone well until I discovered that there was no longer a boot menu (no Webos etc)! I can no longer access the SD card but it is visible on my PC. After trawling forums it seemed that I needed to remount SD card. I used Command Prompt instructions but each time I got "not a valid argument". In short in updating to 10.2 I have lost the ability to use a boot menu, it boots straight to 10.2 OS without being able to use SD card. I can no longer access Goo manager or TWRP (where I made a backup). I also can't use Play Store to download a new version of Goo Manager etc. Can anyone help!!:Thanks in advance.