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Wiping the memory on a G Tablet

If I want to do a clean wipe of my rooted tablet is it just a matter of clearing the cache and re-installing the ROM?
That wont clean the sd card will it?
Thanks in advance.

zedsded said:
That wont clean the sd card will it?
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It won't.
To completely wipe all user data from your gTablet, boot into CWM (remove any external microSD cards first) and
a) Repartition the (internal) SD card, and
b) Format cache.
There's no need to re-install the ROM. If you do those 2 steps, above, your ROM will go back to looking like a fresh install.

Here is a link to a thread detailing the installing and running of CWM. I haven't used this particular thread yet, but will be in the next few days. I am going to install the newest gtab modified FrankenTAB build from PixelRider

[Q] Annoying & Impromptu Low Internal Memory Problem

I flashed the latest sense 4.0 rom by apex-predator, followed all the instructions, and it didn't boot. I changed the sd-ext to ext3 as in case of any boot up problem, but to no use. Then I decided to flash stock rom, it didn't work either but earlier everything was working fine in this case, i mean flashing roms, stock and / or custom ones.
Moving over, I installed Xenon Systems rom, it successfully booted but after initial setup it gave my an annoying low internal memory notification, whereby I just completed the initial setup and didn't install any new apps except that came with the rom. It shows about 248 KB or so left.
I am unable to open messages, make phone calls n bla bla that need some memory. FYI, the rom was not overclocked and everything was previously working fine without overclocking as some threads suggest that overclocking may fry the NAND storage.
Looking forward to a positive reply on this issue.
Regards.

Give a try to NAND recovery process by cute prince.
Sent from my HTC Explorer using xda premium

Can you send the link to cute prince's thread, please!!

vikingmax said:
Can you send the link to cute prince's thread, please!!
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here you go
but before doing process check that you have wiped phone clean via CWM or TWRP ie factory format/reset, format system, dalvik, sd-ext......install a known working rom and check internal space left, if you still have low space issue then following the proceedure in the link below.......use at your own risk
http://forum.xda-developers.com/showpost.php?p=36868966&postcount=2367

LiVeRpOoL-FaN said:
here you go
but before doing process check that you have wiped phone clean via CWM or TWRP ie factory format/reset, format system, dalvik, sd-ext......install a known working rom and check internal space left, if you still have low space issue then following the proceedure in the link below.......use at your own risk
http://forum.xda-developers.com/showpost.php?p=36868966&postcount=2367
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Here's the deal now. I am using TWRP and I wiped everything you said above. Stock rom is not able to boot, but Xenon System's rom made it through. It still gave low memory notification. I reverse mounted the memory and it worked for now. Showing 1.5 GB as internal memory, as I have allocated that much for sd-ext partition.
What do you suggest now, shall I try cute prince's tutorial, coz I think the above thing is temporary with this rom and low memory issue will come again if I again flash stock rom or some other custom rom.
Regards.

[Q] Complete Phone Redo???

I have been flashing and playing different roms for awhile now but I have noticed that my phone is running out of space so quickly these days. The internal sd card is full and my external sd card has a little space but that's it, and the phone won't do updates or new downloads due to the internal card being full.
I was wondering, I want to go back to using CM10 again on this Blaze with the latest gapps, but I want to wipe EVERYTHING and start fresh, I have backed things using wondershares mobilego (as well as a manual backup of both sd cards, internal and external).
Can someone give me a good medthod on wiping it all, system, cache, dalvik, internal sd card and external sd card and doing a fresh install of cm10 and gapps.
Thanks in advance

Download the latest cm10 nightly and 4.1.2 gapps from the official cm10 thread to your external SD card.
Boot to cwm and go to mounts, and format:
System
Data
Cache
Emmc
Do all of them several times.
Go to advanced and wipe davlik cache a couple times too.
Then install the cm10 zip followed by the gapps. Wipe cache and davlik one more time. You can format the external SD card any time later, after you verify boot (suggested). You can use a PC or the built in format under settings/storage.

Romman0 said:
Download the latest cm10 nightly and 4.1.2 gapps from the official cm10 thread to your external SD card.
Boot to cwm and go to mounts, and format:
System
Data
Cache
Emmc
Do all of them several times.
Go to advanced and wipe davlik cache a couple times too.
Then install the cm10 zip followed by the gapps. Wipe cache and davlik one more time. You can format the external SD card any time later, after you verify boot (suggested). You can use a PC or the built in format under settings/storage.
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Wouldn't I also need to do format /sdcard several times as well to format the internal sd and then after I am all done I can do the format /sd-ext to format the external sd card? Which if I format the sd-ext it won't hurt anything I did for the install of CM and gapps right?
By the way, thanks for your help I appreciate it

You can format the external a couple times. Sometimes things get left behind, that's why in suggested the multiple wipes. You don't have to worry about SD ext, the partition will get wiped when the external SD card is formated. If you didn't create the partition there's nothing to worry about. I wouldn't format the emmc (internal SD card) after installing a rom as some of it is used.

Romman0 said:
You can format the external a couple times. Sometimes things get left behind, that's why in suggested the multiple wipes. You don't have to worry about SD ext, the partition will get wiped when the external SD card is formated. If you didn't create the partition there's nothing to worry about. I wouldn't format the emmc (internal SD card) after installing a rom as some of it is used.
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Click to collapse
Thanks again, I did as stated above then booted up, made sure all worked fine then went back into cwm and formatted the sd card (not the sd-ext). I am now putting some music and photos back on the sd card so I have them with me. Latest CM10 Nightly from the 4th seems to freeze a little bit when trying to do things on my Blaze, maybe I just need to reboot it again after I move the stuff over.
Thanks again!

Give it a a little while to settle. If it is still giving you issues try the previous nightly from 7/28.

Gunstra said:
Thanks again, I did as stated above then booted up, made sure all worked fine then went back into cwm and formatted the sd card (not the sd-ext). I am now putting some music and photos back on the sd card so I have them with me. Latest CM10 Nightly from the 4th seems to freeze a little bit when trying to do things on my Blaze, maybe I just need to reboot it again after I move the stuff over.
Thanks again!
Click to expand...
Click to collapse
Part of the internal storage is cached at /cache. It caches a bunch of things, such as mount points and app usage. When you wipe cache and start over, expect things to be slower for a couple days/reboots. Then it'll settle, as was said above
Good tips Romman0. I try to do this every 4 months or so. Blackhole and FSC only make it better, but that's clearing leftovers and realigning empty blocks and messing with the filesystem and a lot of technical junk
Sent from my SGH-I777 using xda app-developers app

[Q] Low internal Memory - Clean slate?

I am currently running CM12.1 on a 16gb version of Verizon GS3. I have less than 500MB (see attached screenshot) after updating from an older version of a JellyBeans ROM. I've gone through the normal steps to remove backup files, ROM files, clear cache, etc, but I still have low internal storage. What is the process wiping the internal memory in order to start with a "clean slate" and then re-install CM12.1? I want to make sure I don't do anything to brick my phone, so please be specific, I have some ROM flashing experience, but I'm not exactly a pro at this, so I need details or a video to help this dummy out. Thanks in advance!
p_patterson

p_patterson said:
I am currently running CM12.1 on a 16gb version of Verizon GS3. I have less than 500MB (see attached screenshot) after updating from an older version of a JellyBeans ROM. I've gone through the normal steps to remove backup files, ROM files, clear cache, etc, but I still have low internal storage. What is the process wiping the internal memory in order to start with a "clean slate" and then re-install CM12.1? I want to make sure I don't do anything to brick my phone, so please be specific, I have some ROM flashing experience, but I'm not exactly a pro at this, so I need details or a video to help this dummy out. Thanks in advance!
p_patterson
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Click to collapse
Would I be correct in thinking you have CWM recovery installed? I am not actually familiar with the capabilities of recent CM recoveries, the last I used was for my 5 y/o SGS Captivate.
First have a copy of your nandroid or a fresh zip of the ROM on your external sdcard, have GAPPS here also. If CWM will permit, wipe /system and /data in addition to cache and dalvik cache. I have seen some refer to wiping /system as formating the internal sdcard. (I have seen others state that doing a factory reset with the stock recovery gives the cleanest device, but most needing this were going back to a TouchWiz based ROM after being on LP.)
You then reflash your ROM and GAPPS.

CM13 with micro SD card GT-P311x

Hello,
I have managed to take my tablet from KitKat to Lollipop and then Marshmallow using cm-13.0-20160802. Everything was working fine up to a point when I was in Japan and then I started experiencing problems with Wi-Fi connections. Following the boot, I was getting a message stating that "Process system isn't responding...". Restarting the tablet was some sort of a solution to be able to use Wi-Fi.
Back to home, I was determined to obtain the most recent version of cm-13.0 hoping to solve the issue but I was not simple. First, let me say that I have a micro SD of 32 Gig, which was integrated as internal memory. My recovery program was TWRP 3.0.0-0. I have tried to follow the steps as explained on Android-Andi FAQ page. I might have made an error somewhere but anyhow, the end result was an empty tablet. Everything was gone including backups saved on the external SD.
To fix this, I have restored my tablet to 4.2.2, rerouted it, went to Lollipop with cm-12.1 and finally to Marshmallow cm-13.0-20161007. Again, my external SD card is now integrated and viewed as internal memory using the feature that comes with cm-13. I have just found out that 2 other releases of cm-13 have been made available since. TWRP is now 3.0.2-7 and was used to back up Lollipop as well as EFS.
I would like to proceed with the update but I would prefer to take an easy way, not the long one as I was forced to. Here is my question: considering that my external SD is viewed as being internal storage, what should I do in order to update my current version of cm-13 to a more recent version?
Regards

You have two options
a.) Doing a dirty flash. Install the rom then wipe cache and dalvik. Then reboot
b.) Clean flash. Wipe /system, /data, dalvik, and cache then install the rom. Then wipe cache and dalvik again and reboot.
Wiping Data (Internal storage not /data) is usually not needed unless you want to encrypt the device.
Don't forget to use the latest recovery.
Cheers

Thanks Lightracer for your reply.
By the time I received your reply, I had figured out my problem. I can now update my rom with my external sd card has being viewed as internal storage without loosing everything.
For your information, I do use the latest recovery tool. By the way, I prefer the clean approach.
Thanks again for your involvement.