3. Custom recovery
* What is custom recovery
* Tools which custom recovery provide - NAND backup/restore, formatting of SDcard, partitioning (ext1,ext2, ext3), wiping, flashing of Custom ROM, ...
* Is it safe to install? - potential problems, backup/restore of original recovery
* How this whole thing works - installation description (not how-to install, just explanation of what is done during installation)
What is custom recovery
Recovery is an image (binary data) stored in internal memory. This image contains something like a "program" or "tool", which can boot-up independently from the Android system. This tool is part of phone system, and in PC terminology recovery can by compared to BIOS with some added features. This recovery state can be reached on all phones, but if you don't have a custom recovery, it will do a so-called HW reset and automatically restart itself into standard boot mode.Tools which custom recovery provides
* USB-MS Toggle :mounts sdcard as mass storage
It just mounts your phone as USB-mass storage (USB disk) so you can access it through your PC
* Backup/Restore:
Absolutely GREAT feature. With NAND you can copy an image of your actual system (phone's memory). It means that you can backup the whole system with all configuration, customization, wallpapers, system's tweaks... just everything. This image will be written to your SD card which you are then free to copy around and back up on your computer
* Flash Zip From Sdcard
This tool is designed for installation of custom ROMs or tweaks. If you are instructed to install via custom recovery, then you should use this menu. Never unzip the file because it contains meta-information about itself with some validate-checks so if you edit it, or unpack and pack back, it won't work. And remember to place the file in the root (main folder) of your sdcard.
* Wipe Menu:
Wipe data/factory reset: wipes data & cache
- wipes user data (contacts, apps, configuration, ...) and cache (caches of applications)
Wipe cache
- wipes cache only
Wipe Dalvik cache : Wipes Dalvik cache in all possible locations if moved by apps2sd
- wipes Dalvik cache
Wipe SD:ext : Wipes Apps2sd ext partition
- if you used Partition SDcard option, you can wipe it here
Wipe Battery Stats (remember to fully charge your phone before doing this)
- If you think, that your battery life is too short, you can try delete battery stats. Than let phone fully charge. (more)
Wipe rotate settings
- wipe sensor settings (acceleration, ...)
Wipe .android secure : Wipes froyo native .android_secure on sdcard
- wipe information about moved apps
* Partition Sdcard:
Partition SD: Partitions sdcard for apps2sd (this formats card so all data will be lost)
- will create ext2 partition (you will be asked for size of ext2 and cache)
Repair Sd:ext
SD:ext2 to ext3 : converts apps2sd ext2 partition to ext3 (requires kernel support for ext3)
SD:ext3 to ext4 : same as above but ext3 to ext4 (requires kernel support for ext4)
ext2 - file system for the Linux kernel (no journal, fast but not recovery of I/O error)
ext3 - file system for the Linux kernel (journal, slower than ext2 because of journal, but provides recovery on I/O error)
ext4 - file system for the Linux kernel (journal, enhanced version of ext3)
* Mounts:
Gui automatically mounts folders
* What is custom recovery
* Tools which custom recovery provide - NAND backup/restore, formatting of SDcard, partitioning (ext1,ext2, ext3), wiping, flashing of Custom ROM, ...
* Is it safe to install? - potential problems, backup/restore of original recovery
* How this whole thing works - installation description (not how-to install, just explanation of what is done during installation)
What is custom recovery
Recovery is an image (binary data) stored in internal memory. This image contains something like a "program" or "tool", which can boot-up independently from the Android system. This tool is part of phone system, and in PC terminology recovery can by compared to BIOS with some added features. This recovery state can be reached on all phones, but if you don't have a custom recovery, it will do a so-called HW reset and automatically restart itself into standard boot mode.Tools which custom recovery provides
* USB-MS Toggle :mounts sdcard as mass storage
It just mounts your phone as USB-mass storage (USB disk) so you can access it through your PC
* Backup/Restore:
Absolutely GREAT feature. With NAND you can copy an image of your actual system (phone's memory). It means that you can backup the whole system with all configuration, customization, wallpapers, system's tweaks... just everything. This image will be written to your SD card which you are then free to copy around and back up on your computer
* Flash Zip From Sdcard
This tool is designed for installation of custom ROMs or tweaks. If you are instructed to install via custom recovery, then you should use this menu. Never unzip the file because it contains meta-information about itself with some validate-checks so if you edit it, or unpack and pack back, it won't work. And remember to place the file in the root (main folder) of your sdcard.
* Wipe Menu:
Wipe data/factory reset: wipes data & cache
- wipes user data (contacts, apps, configuration, ...) and cache (caches of applications)
Wipe cache
- wipes cache only
Wipe Dalvik cache : Wipes Dalvik cache in all possible locations if moved by apps2sd
- wipes Dalvik cache
Wipe SD:ext : Wipes Apps2sd ext partition
- if you used Partition SDcard option, you can wipe it here
Wipe Battery Stats (remember to fully charge your phone before doing this)
- If you think, that your battery life is too short, you can try delete battery stats. Than let phone fully charge. (more)
Wipe rotate settings
- wipe sensor settings (acceleration, ...)
Wipe .android secure : Wipes froyo native .android_secure on sdcard
- wipe information about moved apps
* Partition Sdcard:
Partition SD: Partitions sdcard for apps2sd (this formats card so all data will be lost)
- will create ext2 partition (you will be asked for size of ext2 and cache)
Repair Sd:ext
SD:ext2 to ext3 : converts apps2sd ext2 partition to ext3 (requires kernel support for ext3)
SD:ext3 to ext4 : same as above but ext3 to ext4 (requires kernel support for ext4)
ext2 - file system for the Linux kernel (no journal, fast but not recovery of I/O error)
ext3 - file system for the Linux kernel (journal, slower than ext2 because of journal, but provides recovery on I/O error)
ext4 - file system for the Linux kernel (journal, enhanced version of ext3)
* Mounts:
Gui automatically mounts folders
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