i am new to android phones ROM updating . in forums for update ROM on android phone tutorials have two methods
1 . update by SD card
2. odin multi downloader
can any one guide us what are two these methods and both are same or different approach.?? and which is the safest way to update ROM??
also can we downgrade android firnware with out problem?? and how to find the latest version by file name on android, what is the different bitween stock ROM and custom ROM?/??
thank you