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In addition to backing up my personal data, can I back up paid apps? I only got two apps that I have paid for. If I have to pay again if I lose them, it wouldn't be a big deal.
If you do a hard reset or replace the device when you log back in with your gmail information and go into market they will already be listed there under my downloads as purchased. There is no need to back them up.
When I reset my phone all of the apps that I had installed and paid for showed up in My Market. All you have to do is reinstall all of them.
The point OTD was making is with the upcomming 2.1 update the entire OS will be replaced. Some people have said the Apps dont show up after an OS update, thus its a good idea to back them up if you can.
I wonder what happens with paid apps that you have to install the .apk yourself because of the OS update. If that app has an update, do you get the update or do you have to purchase again. For example, I have ourchased Bettercut and I have backed it up. Lets say that once we get the OS update I check the market and it doesnt show Bettercut anymore so I install my backed up copy. The next time Bettercut has an update, will I get it, or would I have to purchase the app again?
In addition to backing up my personal data, can I back up paid apps? I only got two apps that I have paid for. If I have to pay again if I lose them, it wouldn't be a big deal.
You can backup "Paid" Protected apps.... you need the SDK to pull out the .apk (installer files). install the latest android SDK, check out the tools folder of the SDK, run a command line from there, and do the following:
adb pull /data/app-private/*
you will then have a backup of all the "protected" apps that you paid for, save the .apk files to your SD card with the rest of your backed up apps. Now you can install them when you want to later unprotected.
For other details of general backing up of stuffs on your phone using the SDK check out:
Backup & Restore Android Apps Using ADB | JonWestfall.Com
In any case, installing something from your SD card that is an .apk file,
won't show up in Market. If, and only if, you've installed it from Market directly,
will it show up for Updates.
This is my experience with backing up with ES File Explorer.