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Botaimab
06-21-2015,
I'm having a hard time optimizing the memory on my (rooted) Samsung Concord model ZTEV768 running Android 2.3.7 I have everything possible moved to my SD card using LinktoSD but still I'm barely able to maintain 20 MB on my phones memory. Cleaning the Cache barely helps.

I cant find a way to install a new Rom such as CyanogenMod using Rom Manager because ClockworkMod doesn't support my phone. I tried something called Goo Rom Manager but again Without ClockworkMod I cant install the Rom's zip file during recovery. Therefore the hope that a new Rom would help me with my memory issues are squashed.

BottleBalse
06-21-2015,
Your phone has 512 MB RAM? As per from what I gathered looking at the specifications.

Must be some constantly running apps then. What all apps do you have?

Since you have rooted the phone, did you remove the pre-installed apps that you did not need?

You can use SystemCleanup (https://play.google.com/store/apps/details?id=com.SystemCleanup.Inteks.org&hl=en) to prevent apps from starting up, which should not startup with the phone. SystemCleanup had been suggested in another thread here by IO.Hazard. But, be careful while using it.
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BosssoN
06-22-2015,
since it's rooted, I would move your system apps (ones you don't use) to the sd card as well. For some reason or another, some of those are pretty big. I say move it instead of deleting so you can move them back if you want to recover them.

A new rom wouldn't give you more memory, it just frees up what apps the phone uses, which you can do yourself but it takes time.

I use http://wiki.cyanogenmod.org/w/Barebones to figure out which apps to remove myself

Borrise
06-22-2015,
I have systemCleanup but I have been using TitaniumBackup to freeze unneeded apps. After reboot there is barely any change. Does removal of unneeded apps produce better results? Also I have been making weekly backups as a life line but I'm unable to to make a Nandroid backup for reasons mentioned previously. I'm afraid of bricking my phone without a way of restoring an image. http://www.techsupportalert.com/freeware-forum/images/smilies/frown.gif

borrow.com
06-24-2015,
Some of the unneeded apps run on startup, and take up memory, or just keep popping up in intervals. So, it's better to just delete them altogether, if you don't need them. Freezing will have the desired effect too.

I deleted the pre-installed unneeded apps. I first took a whole system backup with TitaniumBackup. Then, using TitaniumBackup, I removed the unneeded pre-installed apps. After a few days, when I was sure the phone was working properly without them, I deleted them permanently from TitaniumBackup.

I haven't made a Nandroid backup too. Haven't installed ClockworkMod yet. Happy being rooted for now http://www.techsupportalert.com/freeware-forum/images/smilies/biggrin.gif... although I do want to try out custom ROM... but maybe later.

You can check with SystemCleanup, what all apps are starting up with the phone. You can prevent them from starting up with the app.

Many apps like Facebook constantly hog the memory, even when they are not being used. That's why I got rid of Facebook app from my phone. So, watch out for those ones.

Also, social apps like WhatsApp, Viber, Kik Messenger, etc, always need to keep running, and take up memory. So, many of such apps will also take up memory.