Back up rom

kgs1992

Senior Member
May 8, 2012
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I think you mean to say back up the old ROM before flashing a new one?
You perform a NANDROID backup. For this, you need to go to recovery, and select the backup option.
If the Sense version & Android versions of both ROMs is the same, wipe Cache +Dalvik from recovery before flashing the new ROM. If you want to revert back, Wipe Cache + Dalvik from recovery again and then flash the Old ROM.
 

DLittle2012

Senior Member
May 23, 2012
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Yes a nandroid back up is what I'm referring too.so I go into recovery select back up option to back up the old Rom.what do you mean by if sense version and the Android version of the Rom is the same?How do I know if the 2 are the same?you said to wipe cache& dalvik from recovery before flashing the new Rom.and if there not the same then what do I do?would you please explain.

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kgs1992

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May 8, 2012
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What I meant to say was that if the Android software version (for example 2.3.4 (Ginger Bread) or 4.0.3 (Ice Cream Sandwich) ) & the HTC Sense software version (for example Sense 3.5, Sense 3.6, Sense 4.0) are same for the old ROM that was installed and the new ROM that you want to install, it is sufficient to wipe Cache + Dalvik.
If they are not the same, then you need to format all partitions except SD Card.

To wipe Cache + Dalvik or to Format all partitions:
  • Switch off your phone.
  • Remove and re-insert the phone battery.
  • Press Vol down + Power key to boot to bootloader.
  • Select Recover.
  • Choose the option Format | Wipe
  • Select the action you need to perform.
 

DLittle2012

Senior Member
May 23, 2012
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I'm running a sense Rom right now but I'm going to install a non-sense Rom that why I need to know the difference between a sense and a android version is a Android version a Rom without sense?I don't know how to determine if there the same because if they are I just wipecache & dalvik.what about if there not the same then what do I wipe or do?

Sent from my HTC Sensation 4G using XDA
 

kgs1992

Senior Member
May 8, 2012
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I'm running a sense Rom right now but I'm going to install a non-sense Rom that why I need to know the difference between a sense and a android version is a Android version a Rom without sense?I don't know how to determine if there the same because if they are I just wipecache & dalvik.what about if there not the same then what do I wipe or do?

Sent from my HTC Sensation 4G using XDA
If you go to Settings > About phone > Software Information , you can find android version and sense version information is available there.

If you are switch to a Senseless ROM, format all partitions.
 

DLittle2012

Senior Member
May 23, 2012
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Basically kinda of in away when you update s Rom with updates you install the new update on top of the old one?

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DLittle2012

Senior Member
May 23, 2012
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I'm running Ics 4.0.3 with sense 3.6 and I want to install cm9 nightlies with the Google apps that what I'm trying to achieve.

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DLittle2012

Senior Member
May 23, 2012
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I went into recovery and taped on back up and downloaded it.and when I got done I went into the sd card and I couldn't find it.when I backed it up where did it go?and when do you hit restore when your ready to reinstall it?

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OreoBoyVa

Senior Member
May 24, 2012
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yo moms crib
I went into recovery and taped on back up and downloaded it.and when I got done I went into the sd card and I couldn't find it.when I backed it up where did it go?and when do you hit restore when your ready to reinstall it?

Sent from my HTC Sensation 4G using XDA
Folder called back up lol or if you use Rom manager it will be in that folder

Sent from my HTC Sensation 4G using xda premium