Note that a Factory Reset only affects that data partition, it does nothing to the system partitions, and contrarily flashing a stock ROM will only affect those system partitions and, as long as you can follow instructions properly, it does not affect that data partition. So you've got essentially two separate sections - the various system-related partitions that you typically only have very limited access to, and the data partition, where all your stuff reside.
HOW TO FLASH WITH ODIN WITHOUT DELETING USER INFORMATION INSTALL
All your files and apps you install get saved to this data partition. Also, flashing a ROM on your S3 is something of a delicate task so while your saved data should be OK it's still a big risk.īut getting back to your query, the storage media in your S3 is divided into different partitions, most are dedicated to the operating system (Android) and one is set aside as a general user data partition. Phone storage media and microSD card media just are not reliable as long-term storage so set up a back up solution now. TL DR Flashing with Odin can fix a lot of problems that a simple factory reset may not.If you're using Odin to flash a stock ROM it will not affect your saved files but it's always a good practice to back up everything. Maybe somebody with more knowledge can shed some light if this is actually recommended or just a bunch of crap xD
I can't remember or cite the source of where I read that this is the recommended interval but I do it anyway LOL. I do this and have no complaints with my S9+. I think Odin is an EXCELLENT tool and should honestly be used more frequently than it is.Īlso, I recommend flashing with Odin every 4 to 6 months to keep your phone running great. why does this make a difference? If for whatever reason something inside /system partition (or any of the other partitions on this phone) is corrupt or got infected with malware (which is not likely but technically possible), then a factory reset, which only deletes the /data partition and doesn't touch the /system partition will not fix it. (including internal memory so watch out, make sure you have backups of your media) This includes partitions like /system, /vendor, /odm. So if an app is messing up your phone chances are that a factory reset will fix it since it's deleting both the app and its configuration filesįlashing stock with Odin: Assuming you are flashing stock with the regular CSC file and not HOME_CSC (which doesn't touch the /data partition), then flashing with Odin will completely delete, format, re-partition and re-write everything in your phone's memory. Basically, the only partition apps on the playstore (or even downloaded apks) have access to is the /data partition. What's stored in /data partition? Everything from the apps you install to their configuration files, libs, etc. To explain why it's better, I should explain the difference of both methods.įactory reset from stock recovery: From I can tell, factory resetting from stock recovery only deletes the /data partition. which pretty much does the factory reset from the recovery anyway).
So, why is flashing firmware through Odin better than a simple factory reset from your phone (be it from the stock recovery or from the phone's settings. But I'd like to make a whole post about it in hopes that maybe more people see this and maybe get a few suggestions (maybe) from people that know a little better. So today I've actually suggested 2 times to flash firmware through Odin rather than a factory reset and I've explained why I think so.
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