Nandroid backup & other questions
Originally Posted by krzysiekx
Mate, here are few more answers for on your questions:
I got myself CM 10.1.3 RC on SpeedMod kernel - thought It'd be more stable than Nightly versions but for now it's a bit more laggy than older version of CM on Semaphore kernel.
The newest CyanogenMod builds are still in development phase and once they get stable kernel devs (like stratosk etc) will improve it further and create optimized versions of the kernels. Of course, anybody who wants to try JB kernels can do it. Who isn't sure, should wait for a while.
In this moment, CM10.2 nightly build is faster and gives about double battery life than the stable 10.1x with the i9000.
Stand of today is: nightly 20130828 seems to be the least buggy build.
...by the way, could you explain "Backup" function in CWM for me? Does it back up kernel, rom, everything? What does it backup? Lets say I got a new rom - I have to install everything from my lets call it "Google copy"? That "Backup" from CWM only is used when I screw something up or I want to go back to old rom?
Function "backup" in custom recovery like CWM creates so-called "nandroid backup", which is similar to ghost image of the PC. So whole your system, apps, data, contacts, notes, wallpaper etc get copied as 1:1 image copy. If anything goes wrong in your currently used ROM, (some bigger crashing or similar), just go to recovery mode and "restore" your last backup. You will have your phone on the stand of the moment when you've created backup image.
Only your data stored on the SD card (internal/external) won't be affected / that is also the case by ROM reflashing, except if you choose to format SD card.
Your nandroid backup shouldn't inspire you to take more risk than you otherwise would, because:
- backups made by one version of CWM are in general not restorable with another CWM version
- backups made with one kernel are often not restorable if meanwhile different kernel was flashed
- backups of one specific ROM are often not restorable if meanwhile different ROM with different partitions is flashed
For example: backup made by version 184.108.40.206 that your Froyo with SpeedMod kernel had wouldn't be restorable with CWM recovery v3.x.x.x or 5.x.x.x or v6.x.x.x
So be sure to handle with care your nandroid backups/restore files (files can be copied to the PC, best by copy&past whole folder "clockworkmode")
Besides CWM, there are meanwhile also some other custom recoveries for android devices like: TWRP / Aroma / Infuse toolkit / PhilZ recovery that support list of devices and can create ghost system image that can be restored at any point.
How to backup or restore IMEI
IMEI backup & restore thread:
Who managed to lose IMEI look here for help: