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[Guide] How to use ROM Manager & CWM Recovery

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rom manager cwm recovery guide

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Cyber Warrior #1

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Posted May 17 '13 @ 11:20 PM

INDEX OF THIS THREAD
Post #1: Backing Up & Restoring ROMs/Nandroid >> You're Here <<
Post #2: Installing/Flashing ROMs, Kernels, Themes & MODs >> Click Here <<

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Market Link: ROM Manager (free)
Market Link: ROM Manager (premium)
In order to use ROM Manager, you must be rooted.

What is ClockworkMod Recovery?
ClockworkMod... also known as Clockwork and CWM – is a custom recovery for Android phones and tablets that allows you to perform several advanced recovery, restoration, installation and maintenance operations on your Android device that aren’t possible with the stock recovery. In what follows, we will cover all that this recovery is capable of doing, and how to do it.

ClockworkMod recovery is one of the most widely used custom Android recoveries that is available for most mainstream Android devices. ClockworkMod recovery has been developed by Koushik Dutta (also known as Koush) – the same guy who brought us the Android ROM Manager.

GETTING STARTED
Go to the Market and Download ROM Manager > -Once installed, open ROM Manager
Flash ClockworkMod Recovery: This only needs to be done once when first installing the app or whenever an update is available.

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Next reboot your phone.

BACKUP
Create a Nandroid and backup your current ROM:

What is a Nandroid Backup? Nandroid is a set of tools that will enable anyone who has root on their Android device to make FULL system backups, in case something goes wrong or you want to try out that new experimental ROM/theme. It will return your phone back to the condition it was in when you made the backup.

There are two ways of doing this:

From ClockworkMod Recovery OR From ROM Managers "Backup Current ROM" option.
What's the difference? None really, both ways will create a nandroid backup. It's always good to manually learn what goes on in recovery and not rely on an app to do everything for you. One plus of using the "Backup Current ROM" option is, you get to rename the backup file right away if you like to (there's no need to use a file manager app to find the backup and rename it). One negative is if you ever use the "Manage and Restore Backups" option and you need to restore a backup, there's no option for wiping the caches (supposedly you don't need to when restoring a backup but it's better to be safe then sorry and not have to worry about something going wrong). Another reason would be if you are ever not able to get into ROM Manager and you physically have to boot the phone into recovery. So, for that reason + others that I will mention later in the Installing ROMs section... This tutorial will show you manually how to do things in recovery.

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Note: use volume up and down buttons to scroll up and down the menu list and the power button to make selections.
*The backup may take up to 10-15 minutes*


Now that you have installed CWM Recovery and performed a full system backup, you are ready to install/flash Android themes, kernels, tweaks and custom ROMs.
Proceed to next post: Install ROMs/Kernels/Themes with ROM Manager.

============================================
RESTORE
Restore a Nandroid Backup

Repeat steps 1-3 from Backing Up

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Cyber Warrior #2

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Posted May 17 '13 @ 11:26 PM

INSTALL
As mentioned above, another reason I'm using ClockworkMod Recovery and not ROM Manager's "Install from SD Card" option is: ROM Manager may not always be there for you and is also known to cause problems at times when flashing. You can use the "Install ROM from SD Card" option but I still recommend learning how to use ClockworkMod Recovery also.

*** Please make sure you backup your existing ROM before going any further ***

Next
Search through the list of ROMs, Kernels, Themes, etc.. and find what you would like to flash/install.
Download the file of your choice and leave the folder zipped.

Note: You only need to wipe the User Data when flashing ROMs. If you're just flashing Themes, Kernels or MODs... then skip steps 3 & 4 and only wipe the Cache Partition and the Dalvik Cache. (instructions below)

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Once both caches are wiped, proceed to flashing a new ROM/Theme/Kernel/etc..

NOTE


(If you're flashing a ROM... IF NEEDED don't forget to flash GApps after the ROM)
1) install from sd card (ABCD ROM)
2) install from sd card (GApps/Google Apps)
3) reboot phone

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biggrin.pngbiggrin.png Your phone will now load up with the new ROM/Mod/Theme/Kernel. biggrin.pngbiggrin.png
_________ __________________________________________________________


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Common F&Q:
  • Do I need to wipe the data when flashing themes, kernels, mods? No, only when flashing between different ROMS. Just wipe the cache partition & dalvik cache.
  • Do I need to wipe the data when upgrading to a newer version of the same ROM? You could most likely get away with not wiping the data going from ROM ABC v1.2.3 to ROM ABC v1.2.4 without a problem, but it's better to be safe then sorry.
  • I can't access ROM Manager, How do I get back into recovery mode? Power off your phone. Once the phone is turned off, Hold volume down + volume up + the power button at the same time until the phone starts up in bootloader mode. Use the volume keys to choose Recovery and press the power button to select it. The phone will boot you into ClockworkMod Recovery the same way ROM Manager would have. You can now access your backups or whatever else you need to get to.

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Gman650 #3

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Posted Jan 28 '14 @ 5:47 PM

What is the effect on the process if I switch from dalvik to art in 4.4.2? Is there still a dalvik cache to wipe?

Sent from my Nexus 7 using Tapatalk

Cyber Warrior #4

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Posted Jan 30 '14 @ 10:55 AM

What is the effect on the process if I switch from dalvik to art in 4.4.2? Is there still a dalvik cache to wipe?

Sent from my Nexus 7 using Tapatalk

 

I dont think any custom roms support the art run time environment.. so you would still be wiping dalvik.


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Gman650 #5

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Posted May 31 '14 @ 6:53 AM

If I want to start fresh within a givien ROM... do I only "Wipe data/Factory rest"? or do I do that PLUS wipe the dalvik?



Cyber Warrior #6

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Posted May 31 '14 @ 7:05 AM

If I want to start fresh within a givien ROM... do I only "Wipe data/Factory rest"? or do I do that PLUS wipe the dalvik?


Starting fresh with a new ROM..you want to wipe data, wipe cache and then wipe dalvik in that order..then go to installing the ROM from your SD card.. (install GApps/Google Apps if needed for AOSP ROMs) and then proceed to reboot.

If flashing just a new version of the same ROM..say going from Alpha 1.0 to Alpha 1.1, some people skip wiping data and just wipe cache and dalvik..its called a dirty wipe.

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