It (update.zip)is a flashable file.contains META-INF folder and SYSTEM(mostly) folder.Many addons of roms are in flashable zip formats.for an example if you want to flash a rom.......Hi,
I flashed the xray v6.1.1 kernel and JJ's v2.2 rom few days ago.
I found that there is an install update.zip option under recovery.
Please kindly explain what is that, whether I will lose any data when applying this?
Thanks!
Select install zip from CWM recovery
Select the rom file(JJ's hybrid 2.3.zip)
Select Yes
install zip and Update.zip do the same function....but the difference is when you select to flash update.zip it will flash "Update.zip" file from your root of your memory card(so you can't select zip files in other names.i.e-Name_of_the_rom.zip)In install from zip option you can select flashable zip files in any names
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