Installing a new ROM

samwapp · October 21st, 2012, 11:19 AM

Hey y'all, I've got a quick question for you guys. I currently have Jelly Belly, but I want to switch my ROM to CM10. How would I go about doing that while keeping all my data?

NSutherl · October 21st, 2012, 01:25 PM

Quote:

Originally Posted by samwapp

Hey y'all, I've got a quick question for you guys. I currently have Jelly Belly, but I want to switch my ROM to CM10. How would I go about doing that while keeping all my data?

1. Backup all user apps and system data using Titanium Backup.
2. Reboot into recovery, make a nandroid backup.
3. Still in recovery, wipe data/factory reset, wipe cache, wipe dalvik cache, format /system.
4. Still in recovery, flash CM10, flash gapps.
5. Still in recovery, fix permissions.
6. Reboot. Sign in to Google on startup and stop the play store from automatically installing your apps. Install TiBu and paid license from the Play Store.
7. Open TiBu (if it asks about device ID, select restore previous ID, your phone will reboot). Select batch operations in the top right and select restore user apps and data. Go through and select which apps you want to restore.
8. Reboot and profit.

Optional: you can restore some system data from TiBu. I do Clock and SMS/MMS/APN.

The_Chief · October 21st, 2012, 07:09 PM

NS is right: always backup all apps and system data... but never restore all system data - especially across different ROMs!

Here are the system data elements you can (generally) safely restore:

SMS/MMS
Alarms
Call log
Bluetooth connections
Wifi connections

Once you restore these, a reboot will be necessary to see the data.

AND MAKE A NANDROID BACKUP BEFORE STARTING!

jmar · October 21st, 2012, 09:54 PM

Coming from Jelly Belly with Group SMS enabled I worry that restoring SMS to a ROM without Group SMS could cause problems. Otherwise, there is wise info above this post, whether I am right or wrong.

jmar