This is really getting frustrating. I've succeeded in getting a couple of GSI 20 ROMs to install, but they were both vanilla with no gapps and even the CORE version of Nikgapps failed to install because there wasn't enough space left on the system partition. So I tried installing the google GSI-GMS ROM and it hangs at the ANDROID logo. I know there is a fastboot method for increasing the size of the system partition because I used it on another model Galaxy Tab, but I don't know what parameters to use on this one. Anybody know where I can find the info to do that?