Actually I back to level 0.1
My existing 4G SD card is full
0.1 Prepare new SD card using miniTool Partition
I have another 16Gb and I am planning again to partition into 2
[or 3 partitions? Is there other application or ROM that run on separate partition?]
(It will be first partition Fat 12Gb and second partition 2G Ext2)
[Or can I partition second partition ext3 or FAT32? again I still thinking
is there any other application or ROM that need another partition]
(Presently, in my case The second partition is for link2SD)
[App] Link2SD - xda-developers
0.2 factory reset viewpad 7
0.3 restore original ROM or to new ROM
0.4 ROOT and install link2SD,app2SD and others
Hope to get some replies/suggestions before I do it in these few days