[Q] Zip vs. Image Backup!
I have an "almost perfect" stock Nandroid build of 4.06.1540.3. Right now, I have not installed any of my own data, except for Contacts and preferences at the Google Play Store. I have also installed a custom recovery (TWRP 22.214.171.124) and rooted the device.
I think my previous backups may have contain corrupted data, as I got multiple error messages when trying to connect to Google and restore contacts. So, I went back to an earlier backup and restored from there. Everything is working now, and I don't want to "screw up"!
What I would like to learn how to do is to make a reliable - i.e. "no corrupted data"- stock backup with a stock recovery so that I may restore it if necessary. Also, would like to be able to take this Nandroid backup and save to a PC so that I can restore from it later.
Please tell me how to do this! Also, will I need to know how to save the file to the computer - as a zip file or as an image file. Right now, I don't know how to do either of those things! TWRP saves the backups as multiple archives rather than as a single zip file or image. Also, which is the preferable method to save the backup as - zip or image file? I would very much like to make this file available to the Developers on this forum as I know that they do not have this particular OTA Nandroid backup posted and I want to help them out! But I think that they would prefer the zip format of the file with the stock recovery.
Please advise! I would be most appreciative, truly!