Database Users

[Q] Cannot install non-stock kernels.

Okay, so I got the leaked Acer generic Honeycomb 3.1 "update.zip" and it installed without issue. However, after gaining root access (verified via root check), installing Busybox v1.18.4 (1.9 didnt like my device), and installing clockworkmod rev 1.3.4 via Acer recovery I find that I cannot complete the ROM installation. I have tried numerous kernels supposedly geared towards my device to no avail. I did boot into recovery mode, factory reset/wipe, wipe cache, wipe battery statistics, and clear dalvick cache....but it didnt work. None of the three kernels I've tried actually install. So far I have tried "UNITY_V1_2.6.36.4_OC1600_SLQB_CIFS_TUN_VR", "unity_v3_picasso_acer", and "Virtuous_Picasso_v1.0.8_Acer_based_thor-kernel v1.1-beta" They say installation from sd completed, (even though the progress bar lasts all of 3 seconds and the text doesnt properly populate) but I get the boot hang upon power cycle. I did verify that the kernels werent corrupted, and I have been able to unbrick via the 3.1 update.zip. Any help would be appreciated.
Oh and also of note, is that I have two mico SD cards, one 16GB SDHC which for some reason wont mount, and a 2GB SD that mounts properly. Both sd cards were formatted from the tablet.

Try to format /system and /flexrom in the 'mounts and storage' menu of cwr. Then try to reinstall a ROM
Sent from my HTC Desire using XDA App

sc2k said:
Try to format /system and /flexrom in the 'mounts and storage' menu of cwr. Then try to reinstall a ROM
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
I will try that and get back to you. Thank you for the suggestion.
edit...
Okay, I followed your suggestions and it didnt make a difference(custom ROM install from SD card completes in 3 seconds, then hangs on the Acer splash screen upon reboot), also while reinstalling the leaked 3.1 stock ROM it gives me a stop error? "random offset 0x339", but completes the installation of said stock 3.1 ROM.

cq842000 said:
I will try that and get back to you. Thank you for the suggestion.
edit...
Okay, I followed your suggestions and it didnt make a difference(custom ROM install from SD card completes in 3 seconds, then hangs on the Acer splash screen upon reboot, also upon reinstalling the leaked 3.1 stock ROM it gives me a stop error? random offset 0x339, but completes the installation of said stock 3.1 ROM.
Click to expand...
Click to collapse
Strange. Check if all partitions can be mounted (from 'mounts and storage' menu). Also, is there anything interesting in /tmp/recovery.log?

According to recovery, everything but the 16GB SD card can be mounted successfully. As for the second suggestion, where would I find the tmp directory? I dont see it in root so where would it be?

cq842000 said:
According to recovery, everything but the 16GB SD card can be mounted successfully. As for the second suggestion, where would I find the tmp directory? I dont see it in root so where would it be?
Click to expand...
Click to collapse
You need adb for this. If you do not have adb, see this guide how to install it (but skip step 7).
Then boot into recovery and try to install a ROM (which will most likely fail). Next, from the console on your pc (the one where you also typed "adb devices") type:
Code:
adb pull /tmp/recovery.log
This will pull the file from your device and save it in the folder where adb is installed.

Alright, I'll get right on it, and get back with some text.

i see here, after u wipe data, u install kernel only zip file???
then you dont have OS flashed, how can it boot
u sholud flash full rom after wipe data, not kernel only..

interqd said:
i see here, after u wipe data, u install kernel only zip file???
then you dont have OS flashed, how can it boot
u sholud flash full rom after wipe data, not kernel only..
Click to expand...
Click to collapse
Lol, I should read the post better next time
@OP: interqd is right. You have to install a full ROM, not just the kernel.
Sent from my HTC Desire using XDA App

interqd said:
i see here, after u wipe data, u install kernel only zip file???
then you dont have OS flashed, how can it boot
u sholud flash full rom after wipe data, not kernel only..
Click to expand...
Click to collapse
Well it looks like I have some more research to do.
These are the instructions I was following...
Overclock Acer Iconia
To begin, copy the kernel you downloaded from the link above, to the root of your SD card.
Once the file is copied, reboot your device into recovery mode. (Power off the device and hold the Power button and Volume down until text in the upper left corner appears. When it does, release the Volume down button.)
Once in the recovery, make a NANDroid backup.
Now, wipe cache and dalvick cache.
Once done, simply flash the kernel you copied to your SD card and let it install and then simply reboot your device.

My n00bish terminology was incorrect, I am trying to flash a custom kernel.

Everytime I try to flash any of those kernels in the original post now I get the garbled screen. What am I doing wrong with the kernels? I followed the instructions to the letter.

Are you trying to install a custom kernel over stock ROM? If so, that's why it's not working. Try with a full custom ROM image.

FloatingFatMan said:
Are you trying to install a custom kernel over stock ROM? If so, that's why it's not working. Try with a full custom ROM image.
Click to expand...
Click to collapse
I suppose I need to find one then. This one that I am using is 3.1 stock but rooted. At any rate, thanks to everyone who took the time to help me find my roots. I've been overclocking notebooks and desktops for years and I thought I'd jump right into the tablet sector as well. Anyways thank you all for your help and guidance.

cq842000 said:
I suppose I need to find one then. This one that I am using is 3.1 stock but rooted. At any rate, thanks to everyone who took the time to help me find my roots. I've been overclocking notebooks and desktops for years and I thought I'd jump right into the tablet sector as well. Anyways thank you all for your help and guidance.
Click to expand...
Click to collapse
There are several in the dev section.

Okay, I just wanted to come in and update. I got the virtuous picasso rom and unity V3 kernel installed and running flawlessly. I am loving it by the way, so now I can get down to what I intended...overclocking and benchmarking. Thank you all for your help.
My goodness it's so easy to overclock these tabs, no doubt due in magnitude to the hard work of the developers of these custom kernels/ROMs.
@ 1.6ghz on Quadrant Standard
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

[Q] LG Optimus L5 (E610) CM10.1

Hi Every One In Xda-Dev I want Install CM10.1 In My L5 E610 But when im install it stuck in bootloop im using 4.1.2 ROOTED

hussein.karim87 said:
Hi Every One In Xda-Dev I want Install CM10.1 In My L5 E610 But when im install it stuck in bootloop im using 4.1.2 ROOTED
Click to expand...
Click to collapse
you need to have ICS to flash it, from JB you will get a bootloop

Sabyn said:
you need to have ICS to flash it, from JB you will get a bootloop
Click to expand...
Click to collapse
Wrong, you can install from JB(i did it)
Yo have to FULL format /system, /data & /data/media, and /cache for the first time
Enviado desde mi LG-E612g

raul338 said:
Wrong, you can install from JB(i did it)
Yo have to FULL format /system, /data & /data/media, and /cache for the first time
Enviado desde mi LG-E612g
Click to expand...
Click to collapse
totally right!!!! :good:
i have do the same steps,no problem at all.please when not realy sure then not post wrong answers,i mean all here!!!its not helpfull and make many peoples unsure.thanx.

-CALIBAN666- said:
totally right!!!! :good:
i have do the same steps,no problem at all.please when not realy sure then not post wrong answers,i mean all here!!!its not helpfull and make many peoples unsure.thanx.
Click to expand...
Click to collapse
i had a friend who got bootloop when he installed from JB, and i got this problem with CM10 too

Still have the Probleme
still have The boot loop when im install CM 10.1 in my JB 4..1.2 Rooted i do this thing
* Wipe data
* Wipe cache
* Wipe dalvik cache
* Flash the CM10.1 zip
* Reboot
* boot into recovery mode
* Install gapps
* Reboot

Turn off your phone. Press 'Volume -' button and plug in the USB cable, then open KDZ Updater and flash V20C with root or V20D with recovery. In both cases, after flashing, install SuperSU and update binary.
If you installed V20C you need to unlock bootloader and recovery. If you installed the V20D you don't need that.
Just place the CM 10.1 zip file in your sdcard as well as gapps and enter recovery mode (when mobile is shutdown, just press 'Volume -' button alongside with Home button and then press Power button. When the phone turns on, release the Power button).
After that, just wipe data and cache and format system, data and cache. Install CM 10.1 and reboot.
It should work

Do I need to Root
jpslvie said:
Turn off your phone. Press 'Volume -' button and plug in the USB cable, then open KDZ Updater and flash V20C with root or V20D with recovery. In both cases, after flashing, install SuperSU and update binary.
If you installed V20C you need to unlock bootloader and recovery. If you installed the V20D you don't need that.
Just place the CM 10.1 zip file in your sdcard as well as gapps and enter recovery mode (when mobile is shutdown, just press 'Volume -' button alongside with Home button and then press Power button. When the phone turns on, release the Power button).
After that, just wipe data and cache and format system, data and cache. Install CM 10.1 and reboot.
It should work
Click to expand...
Click to collapse
Do I need to Root V20D or install cm 10.1 without root

i installed 20D iwant rotted but icant here is the probleme
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
http://s16.postimg.org/j2qyuv3ol/root.png

Just flash V20c with root and install SuperSU from Play Store

[Q] Can't Install Cyanogen ROM on Nook Color

Hi,
First post so if it's in the wrong place, please let me know. I have installed Cyanogen Mods on my Nook Color dozens of times without any problems. Suddenly I began getting errors no matter which ROM I try. Here is an example of my process:
wipe data/factory reset
wipe cache partition
Wipe Dalvik Cache
install zip from sdcard
choose zip from sdcard
Choose - cm-10.2-20130824-NIGHTLY-acclaim.zip
-- Installing: /sdcard/cm-10.2-20130824-NIGHTLY-acclaim.zip
Finding update package ...
Verifying update package ...
Installing update ...
E:Error in /sdcard/cm-10.2-20130824-NIGHTLY-acclaim.zip
(Status 0)
Installation aborted.
Does anyone know what is going on and how to fix it?
There is 12 GB of free space on my SD card.

cafalstrom said:
Hi,
First post so if it's in the wrong place, please let me know. I have installed Cyanogen Mods on my Nook Color dozens of times without any problems. Suddenly I began getting errors no matter which ROM I try. Here is an example of my process:
wipe data/factory reset
wipe cache partition
Wipe Dalvik Cache
install zip from sdcard
choose zip from sdcard
Choose - cm-10.2-20130824-NIGHTLY-acclaim.zip
-- Installing: /sdcard/cm-10.2-20130824-NIGHTLY-acclaim.zip
Finding update package ...
Verifying update package ...
Installing update ...
E:Error in /sdcard/cm-10.2-20130824-NIGHTLY-acclaim.zip
(Status 0)
Installation aborted.
Does anyone know what is going on and how to fix it?
There is 12 GB of free space on my SD card.
Click to expand...
Click to collapse
cm-10.2-20130824-NIGHTLY-acclaim.zip
You are flashing a ROM meant for the Nook Tablet onto a Nook COLOR. Nook Color's codename is encore. Sorry, I just have to post the following meme (jokingly of course, no hard feelings?):
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

separate icertsou
Hi!
I enjoyed the meme. I must have had a brain fart when I wrote Nook Color.
In fact, I do have a Nook Tablet. I have been using the process outlined to successfully install CM nightly builds for months now. I started getting the "E:Error in /sdcard/cm-10.2-20130824-NIGHTLY-acclaim.zip (Status 0)" on the 20130824 release and I have not been able to install a new rom since.
I have no idea even to know where to start troubleshooting this problem.

cafalstrom said:
Hi!
I enjoyed the meme. I must have had a brain fart when I wrote Nook Color.
In fact, I do have a Nook Tablet. I have been using the process outlined to successfully install CM nightly builds for months now. I started getting the "E:Error in /sdcard/cm-10.2-20130824-NIGHTLY-acclaim.zip (Status 0)" on the 20130824 release and I have not been able to install a new rom since.
I have no idea even to know where to start troubleshooting this problem.
Click to expand...
Click to collapse
If you have a tablet, maybe post in the tablet section? This is the Nook Color forum.
Have you tried wiping data/factory reset + wipe cache + wipe system + wipe dalvik cache + wipe battery stats, and then installing the ROM?

Can't install CM Nightly ROMs
Hi!
Thank you for the reply.
I will open a new thread in the Tablet Forum.
The process you suggest is the way I have been installing new builds. It has worked dozens of times. Now, whichever ROM I try I get the error unpacking the zip file.
Moving to the Tablet Forum...

I am getting the same issue. went to reboot my nook color, and it wouldn't come up. so I got a CWM 3.0.2.8 image, did a winimage restore to sd card. copied over gummy and cm10.2 for the encore, boot to cwm, go to install either of those two and get the same error Status 0 Instalation aborted, I did a factory wipe, fixed permissions, re-downloaded the gummy rom. Could it be the version of CWM? Any thoughts?

Yes that CWM version is too old. Go to my NC Tips thread linked in my signature and look for the bootable CWM SD version 5.5.0.4. Burn that image to SD and try.
Sent from my BN NookHD+ using xda premium

leapinlar said:
Yes that CWM version is too old. Go to my NC Tips thread linked in my signature and look for the bootable CWM SD version 5.5.0.4. Burn that image to SD and try.
Sent from my BN NookHD+ using xda premium
Click to expand...
Click to collapse
Trying that now. Thanks for the fast response!
Todd

Problem with my nook color
I'm having trouble with the status 0 error on my nook color. it's cm-11-20140613-encore.zip on cwm 6.0.4.7. it says the same as the one from the guy at the top of the forum. but i'm trying to flash a nook color rom with an up to date recovery and it still won't work. i've tried different sd cards and i tried different nook colors. it just isn't working.
any ideas thanks

MrGHLover said:
I'm having trouble with the status 0 error on my nook color. it's cm-11-20140613-encore.zip on cwm 6.0.4.7. it says the same as the one from the guy at the top of the forum. but i'm trying to flash a nook color rom with an up to date recovery and it still won't work. i've tried different sd cards and i tried different nook colors. it just isn't working.
any ideas thanks
Click to expand...
Click to collapse
The latest CM11 nightlies for the NC require CWM v6048. Get it at the CM11 thread in the development forum.
Sent from my BN NookHD+ using XDA Premium HD app

[Q] Cant install CM 10.2

Hi
I have a LG G2 with stock 4.2.2, I have rootet it, and installed TWRP 2..6.3.4 with the LOKI Hack. I then downloaded the CM 10.2 file for my phone which is a D802 international. Boot into TWRP and first press Wipe end the Install and chose the ZIP file with CM 10.2. But then I get this error when it start to install the image. What is the problem ?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

BrianSPC said:
Hi
I have a LG G2 with stock 4.2.2, I have rootet it, and installed TWRP 2..6.3.4 with the LOKI Hack. I then downloaded the CM 10.2 file for my phone which is a D802 international. Boot into TWRP and first press Wipe end the Install and chose the ZIP file with CM 10.2. But then I get this error when it start to install the image. What is the problem ?
Click to expand...
Click to collapse
Okay i have a few possible solutions for you...
1.) You could possibly not be doing the process right? in this order Factory Data Reset>>wipe cache>>wipe davlik cache>> THAN install the CM zip>>gapps>> then reboot
2.) If your doing that correctly than it could just be a bad download... the first time i tried getting cm 10.2 i got stuck in a bootloop i redownloaded cm and flashed that and all was good...
3.) And if all that dosnt work there should be in the development section of the g2 a loki enabled cwm img which you can flash via FLASHIFY or ROOT RECOVERY TOOLS (the one with the green icon) and do it through cwm the same way you would do it with twrp... i came from twrp and am running cwm now its alot nicer in my perspective... if all that dosnt work still get back to me and keep me updated

reply
iPwnAndroid said:
Okay i have a few possible solutions for you...
1.) You could possibly not be doing the process right? in this order Factory Data Reset>>wipe cache>>wipe davlik cache>> THAN install the CM zip>>gapps>> then reboot
2.) If your doing that correctly than it could just be a bad download... the first time i tried getting cm 10.2 i got stuck in a bootloop i redownloaded cm and flashed that and all was good...
3.) And if all that dosnt work there should be in the development section of the g2 a loki enabled cwm img which you can flash via FLASHIFY or ROOT RECOVERY TOOLS (the one with the green icon) and do it through cwm the same way you would do it with twrp... i came from twrp and am running cwm now its alot nicer in my perspective... if all that dosnt work still get back to me and keep me updated
Click to expand...
Click to collapse
I har tried 1 and 2, and I cant find the image you write about in 3. How do I install CVM instead of TWRP ?

BrianSPC said:
I har tried 1 and 2, and I cant find the image you write about in 3. How do I install CVW instead of TWRP ?
Click to expand...
Click to collapse
Why dont you try the previous twrp version. I heard some issues with the latest.

SysAdmNj said:
Why dont you try the previous twrp version. I heard some issues with the latest.
Click to expand...
Click to collapse
Where do I find a older version of TWRP ? My LG G2 is a D802 International, on the TRWP page there are only versions to AT&T and others.

BrianSPC said:
Where do I find a older version of TWRP ? My LG G2 is a D802 International, on the TRWP page there are only versions to AT&T and others.
Click to expand...
Click to collapse
Try this thread, you might be able to use one of those files for twrp 2.6.3.3
http://forum.xda-developers.com/showthread.php?t=2472223

SysAdmNj said:
Try this thread, you might be able to use one of those files for twrp 2.6.3.3
http://forum.xda-developers.com/showthread.php?t=2472223
Click to expand...
Click to collapse
Found the problem... TWRP ver. 2.6.3.4 dont work with CM or G2, I downgraded to 2.6.3.2 and then I could flash the CM ROM to my phone
Thanks for your help

If I want to go back to stock ROM, can I then just Recover with the backup I made in TWRP before I flashed the CM to my phone ? or is it more complicated then that ?

BrianSPC said:
If I want to go back to stock ROM, can I then just Recover with the backup I made in TWRP before I flashed the CM to my phone ? or is it more complicated then that ?
Click to expand...
Click to collapse
As long as you wipe cache,dalvik cache,system, and data and then restore you should be good. Unless you mean factory stock as in to return your device then follow the general section steps.

SysAdmNj said:
As long as you wipe cache,dalvik cache,system, and data and then restore you should be good. Unless you mean factory stock as in to return your device then follow the general section steps.
Click to expand...
Click to collapse
I mean, back to how it was when I bought it, with stock LG ROM. Can I do it just by restoring from my backup in TWRP ?

BrianSPC said:
I mean, back to how it was when I bought it, with stock LG ROM. Can I do it just by restoring from my backup in TWRP ?
Click to expand...
Click to collapse
How it was when you bought it didnt have TWRP on it, so if you really want to go back to that state without a custom recovery you'd need to do these steps:
http://forum.xda-developers.com/showthread.php?t=2432476
But to just have a stock LG rom from your backup then yes. Have you tried?

SysAdmNj said:
How it was when you bought it didnt have TWRP on it, so if you really want to go back to that state without a custom recovery you'd need to do these steps:
http://forum.xda-developers.com/showthread.php?t=2432476
But to just have a stock LG rom from your backup then yes. Have you tried?
Click to expand...
Click to collapse
I havent tried to recover from my backup yet, but I have to first make a new backup of my CM 10.2, and then I could try my stock backup, to see if its works. If it works, then I can easy restore and go back to my CM 10.2 ?
I dont want to remove the TWRP, but just back to the stock LG ROM with 4.2.2 and the LG software, such as the support for LG Quick window cover.
But I think I will stay on the CM 10.2 because its much more clean ROM. But its nice to know that I can go back, maybe if I want to sell it sometime, then stock ROM is maybe better for non tech people.

BrianSPC said:
I havent tried to recover from my backup yet, but I have to first make a new backup of my CM 10.2, and then I could try my stock backup, to see if its works. If it works, then I can easy restore and go back to my CM 10.2 ?
I dont want to remove the TWRP, but just back to the stock LG ROM with 4.2.2 and the LG software, such as the support for LG Quick window cover.
But I think I will stay on the CM 10.2 because its much more clean ROM. But its nice to know that I can go back, maybe if I want to sell it sometime, then stock ROM is maybe better for non tech people.
Click to expand...
Click to collapse
Yes, you can make a new backup of your current cm 10.2 rom. You can restore to one or the other as long as you wipe properly between each restore. Should be fine, I do this myself sometimes but I'm sticking to cm11 atm.

SysAdmNj said:
Yes, you can make a new backup of your current cm 10.2 rom. You can restore to one or the other as long as you wipe properly between each restore. Should be fine, I do this myself sometimes but I'm sticking to cm11 atm.
Click to expand...
Click to collapse
Thank you for the help :good:

[Best Ever][Noob-friendly] ROM Flashing Guide

Here I start my new thread:
Best Ever Flashing Guide!​
I've started this thread to give you my own experienced flashing guide. This thread/guide will provide you easy and step-by-step tutorial to flash a ROM. If I'm wrong, please don't hesitate to correct me.
You'd say what's new in this thread? I say, "None other guide provide a deep-through guide and these type of new processes that can help you in better ROM flashing."
Before starting I'd like to say:
Anything you're doing is your own responsibility and I'm not responsible for any type of damage to you device.​​(As seen on many thready, I found this interesting) If you point your finger towards me in case of any damage, I'll LOL at you!​
Now let's start with part 1:
Backing-up: When you're switching to a new ROM it's better to back-up your important apps that you need in your new ROM. Because if you don't do this, you've to re-download your apps which is time, data & battery consuming. Here you need a File Explorer such as MiXplorer or ES File Explorer or Root Explorer (Get 'em by clicking on names). Now follow these steps:
Open your File manager and goto Root directory.
Head to "data" folder and then open "app" folder. Here you can see all your installed apps. These are 'User Apps'.
Now select the apps that you want to backup.
Now press "Copy" button to copy you apps.
Head to your SD Card. (You can find "sdcard" folder back in root directory.)
Just paste them wherever you want.
That's it! You've backed-up you apps!
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Now let's move to part 2:
Pre-flash initial wipe: Yeah! Pre-flash wipe! This means that you're wiping your installed apps' data. Sometimes in flashing instructions of some ROMs, it is not given to wipe \data because that wouldn't install your new ROM. SO here's the manual way:
Open you file manager.
In your SD Card, there's a folder named "Android". Just delete it!
Now head back to "data>app" select 'em all and delete 'em! (As you've backed-up, don't fear to delete 'em.)
Part 3:
Pre-flash final wipe: This is the final step of wiping manually. CAUTION: After this wipe you MAY NOT be able to use your phone, so before this, finish your any other precious work then head to this part. Now follow these steps:
Open your file manager and again head to Root directory.
Now goto "data" then again "data" folder. Here you'll see lots of folders.
Just select 'em all and press "Delete". SOME FOLDERS MAY NOT BE DELETED as they are currently in use.
Now Reboot or power-off your phone! (If you're unable to reboot/power-off, just pull-out your phone's battery)
Part 4:
Flashing Kernel:Before Installing/flashing a ROM you must install a Kernel otherwise you'll get error in Flashing ROM or get bugs in installed ROM. You can get the kernel to flash inside you ROM's zip. (Just open the ZIP file and extract boot.img) Here are the Kernel Flashing instructions:
Open FlashTool. If you don't have FlashTool, get it here!
Click the Lightning Icon and choose Fastboot mode.
Click Select Kernel to flash and choose your kernel. (if it is .elf file choose .elf format from dropdown menu and if it is .img file choose it from same.)
Before clicking Open, Turn-off your phone. Wait at-least 5 sec. press and hold vol+ (volume increase) button and simultaneously insert data cable into your phone.
A Blue LED will light-up and here you can remove finger from the button. (On some Xperias that light will glow-up in the Illumination bar). Now Press Open by clicking on your kernel.
It'll flash kernel to your device in just 3-5 seconds then you can reboot and Install your desired ROM.
Part 5:
Flashing ROM: This part relates to your respective ROM's flashing instructions. Some important points here can help you:
Most of the Stock, Stock-based and CyanogenMod10, 10.1 ROMs use this wiping precess in Clockworkmod Recovery:
Wipe data/factory reset.
Wipe cache partition.
Goto advanced and wipe dalvik-cache.
Install ROM.
Most of the CyanogenMod 9 ROMs use this wiping procedure:
Install ROM
Install GAPPS
Wipe data/factory reset.
Most of the CyanogenMod 10.2 ROMs use this wiping procedure:
Wipe data/factory reset.
Wipe cache partition.
Goto mount & storage and do a format system.
Install ROM.
Most of the Kit-Kat 4.4 ROMs use this wiping procedure:
Wipe data/factory reset.
Wipe cache partition.
Install ROM.
IMPORTANT: Some ROMs have different wiping procedure, please follow them. This is just for reference purpose if wiping procedure isn't provided in the ROM's thread. Also, DON'T FORGET TO FLASH THE KERNEL every time before you Install a ROM.

For most Xperia Devices the fastboot key is vol+ not vol-. Vol- is for flashmode which is for flashing a stock ftf firmware.

No mention of unlocking bootloader or how to do it, can't flash a kernel without unlocked bootloader. No mention of losing Bravia Engine/X-Reality and DRM keys if bootloader is unlocked. No mention of backing up TA partition. No mention of installing recovery. No mention of the fact that specific versions of recovery are required to flash Kitkat ROMs. Most custom ROM instructions I've seen have the user flashing ROM before kernel.

On #4 you need to add...
Advanced/System
Sent from my SGH-M919 using XDA Premium 4 mobile app

1. Backup data - Better backup using PC Companion or Backup and Restore app (Sony has include this app in stock fw)
2. To enter fastboot mode must be hold volume up (+) not volume down(-) [Flashmode]
Btw nice tutorial for noob

@paxy97 @Levered Oops! Well.... I read this post many times before posting but can't find this mistake. Though I did the flashing procedure hundred of times, I made mistake in writing. Thank you both. Rectifying it now.

gandalf_grey91 said:
No mention of unlocking bootloader or how to do it, can't flash a kernel without unlocked bootloader. No mention of losing Bravia Engine/X-Reality and DRM keys if bootloader is unlocked. No mention of backing up TA partition. No mention of installing recovery. No mention of the fact that specific versions of recovery are required to flash Kitkat ROMs. Most custom ROM instructions I've seen have the user flashing ROM before kernel.
Click to expand...
Click to collapse
Cool man cool! This proposed that the person coming to this thread had already done that and basically and specifically, this is a 'Flashing Thread', not a complete thread..... Chill and Enjoy XDA!

The Sickness said:
On #4 you need to add...
Advanced/System
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Where? I can't find. Can you please copy-paste the line where the mistake is...?

cy56 said:
Where? I can't find. Can you please copy-paste the line where the mistake is...?
Click to expand...
Click to collapse
I'm on my cell at the moment...In TWRP there is a Advanced tab, which allows you to wipe System.
Sent from my SGH-M919 using XDA Premium 4 mobile app

The Sickness said:
I'm on my cell at the moment...In TWRP there is a Advanced tab, which allows you to wipe System.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Oh! That's for CWM not for TWRP..... As most of users use CWM, I've written instructions for TWRP. Also, TWRP doesn't supports 2.3 & 4.0 ROMs ans CWM has total support for all Android versions, that's why....

cy56 said:
Oh! That's for CWM not for TWRP..... As most of users use CWM, I've written instructions for TWRP. Also, TWRP doesn't supports 2.3 & 4.0 ROMs ans CWM has total support for all Android versions, that's why....
Click to expand...
Click to collapse
You are mistaking. TWRP has a Advanced tab. I use it daily. The Advanced tab allows you to wipe the system, dalvik, cache, etc. Basic wipe does not wipe System.
Lack of support you are correct on.
Sent from my SGH-M919 using XDA Premium 4 mobile app

The Sickness said:
You are mistaking. TWRP has a Advanced tab. I use it daily. The Advanced tab allows you to wipe the system, dalvik, cache, etc. Basic wipe does not wipe System.
Lack of support you are correct on.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Oh man! I know this, I also have used TWRP many times but as I said this thread doesn't follows the TWRP.

But will it work if I have "Bootloader unlock allowed: No"?

cahir1495 said:
But will it work if I have "Bootloader unlock allowed: No"?
Click to expand...
Click to collapse
Dude! There's no issue of Locked Bootloader here. This issue arises when you're installing a ROM. Most of the times you just need to delete boot.img from ROM.zip and it installs but still there are many ROMs that are specifically made for Unlocked Bootloaders. For this refer to your ROM maker's guide.
P.S.: In many ROMs' description there's written "UB" which means only Unlocked Bootlodaer and "LB" which means Locked Bootloader and sometimes both "LB" & "UB" which means that ROM is made for both Locked and Unlocked Bootloaders but each may have different installation method.