I am not able to boot into ‘Upgrade Mode’ for my VIM 3L with every method specified in the documentation. When I do as the instructions mention, I am brought to the ‘Android Recovery’ screen. I am able to see the contents of the SD card when selecting ‘Apply update from EXT’ > ‘Update from sdcard’, but I am not able to update.
On another note, I tried upgrading with USB-C to USB-C on my Windows computer using the ‘USB Upgrade Tool’. I do get ‘Connect Success’, but when trying to select the disk image I get an error message mentioning that it is unable to parse the disk image.
Just figured it out, my issue was that I was using the file “VIM3L_Ubuntu-gnome-focal_Linux-4.9_arm64_SD-USB_V0.9-20200530.img” instead of “VIM3L_Ubuntu-gnome-focal_Linux-4.9_arm64_EMMC_V0.9-20200530.img”. I got confused thinking “SD-USB” meant that it would work with the computer method.