Database Users

[HOWTO] Flash a rom the n00b Pro way

****This How TO was made for use with ClockworkMod Recovery. And may not work on other recoverys.****
To make this easier we will use Rom Manager for some of this How To. Here is the download link https://market.android.com/details?...xLDEsImNvbS5rb3VzaGlrZHV0dGEucm9tbWFuYWdlciJd
**Step 1**
If you don't have ClockworkMod Recovery please continue follow this step. If you have it or dont want to use ClockworkMod Recovery move to the next step.
1.) In Rom Manager choose “Flash ClockworkMod Recovery” and select you fone. And follow the step that are giving to you. Now you have ClockworkMod Recovery on your fone.
**Step 2**
Now with that said download your new soon to be favorite rom. You can find some here http://forum.xda-developers.com/showpost.php?p=13633553&postcount=2 .
After you download the rom move it to the root of your SD card(not a must but it does make it easier). Remember on some rom you must also download and flash the GAPPS. Make sure you download the needed zip and move to the root of your SD card also.
**Google Wallet Step** (Not Required)
Also if you rom does not include Google Wallet you may want to run down the flash-able zip and also put it on the root of your SD card.
**Step 3**
Now it is time too boot into ClockworkMod Recovery. Goto Rom Manager and select”Reboot into Recovery”
Now you should be in ClockworkMod Recovery.
How to navigate in ClockworkMod Recovery: Volume Rocker = Up/Down, Power Button = Select, Back Button = Back(duh)
Now I would suggest backing up your current rom by doing a nandroid backup. Use this guide to learn how. http://forum.xda-developers.com/wiki/index.php?title=How_to_backup_or_recover_via_Nandroid
**Step 4**
Now in ClockworkMod Recovery it is time to prepare your fone to flash the new rom.
1.) Got “wipe cache parition” and select it. Then select “ Yes – Wipe Cache” Now t should take you back t he first screen.
2.) Goto “advanced” and select it.
3.) Now goto “Wipe Dalvik Cache” Then select “ Yes – Wipe Davik Cache” Now t should take you back the advanced screen.
4.) Next go back to the main screen and select “mounts and storage”
5.) Now format /system, /cache, /data, /boot
**Step 5**
Now that we have prepared our fone to flash the rom it is time to do that now.
1.) On the main screen goto “install zip from sdcard”
2.) Now choose “choose zip from sdcard”
3.) Next find the rom zip and select it(if you put it on the root of you SD card it should be somewhere near the bottom)
4.) Now just select “Yes” your rom will install it's self now. When it is done it will take you back to the screen in step 2 of this step.
**GAPPS Step** (Skip if your rom does not need you to flash the GAPPS or if you just dont need them.)
1.) Select “choose zip from sdcard”
2.) Next find the GAPPS zip and select it(if you put it on the root of you SD card it should be somewhere near the bottom)
3.) Now just select “Yes” GAPPS will install it's self now. When it is done it will take you back to the screen in step 1 of this step.
**Google Wallet Step** (Skip this if you do not wish to flash Google Wallet.)
4.) Select “choose zip from sdcard”
5.) Next find the Google Wallet zip and select it(if you put it on the root of you SD card it should be somewhere near the bottom)
6.) Now just select “Yes” Google Wallet will install it's self now. When it is done it will take you back to the screen in step 1 of this step.
**Step 6**
Go back to the main screen of ClockworkMod Recovery and choose “reboot system now”. Your fone will reboot it's self. This first reboot can take upto 5 to 10 minutes this is normal. When you fone boots into your new rom follow the on screen directions to see up your Google account. When done reboot your system. Now you are done.
Thanks & Credits:
I would like to thank Koushik Dutta for making Rom Manager and ClockworkMod.
I also would like to thank Vandam500 for his great thread [REF] Complete List of Roms | Kernels | Rooting/Other Guides for Nexus S 4G (CDMA)
And XDA for the How to backup or recover via Nandroid wiki.

10 so this is mine

Good for n00bs. + 1
Follow the leader @corythug

corythug said:
Good for n00bs. + 1
Follow the leader @corythug
Click to expand...
Click to collapse
Well I have looked over tons of post ask how to flash a rom so I made this one. Plus this is the only way I can get Google wallet to work on any rom.
Sent via Tapatalk using a Nexus S 4G powered by MIUI

great contribution to the community

Naww. The pro way would be through adb.
This is pointless. Would you like to tell us how to do a battery pull as well?
Sent from my Nexus S 4G using Tapatalk

Shark_On_Land said:
Naww. The pro way would be through adb.
This is pointless. Would you like to tell us how to do a battery pull as well?
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
no ill leave that to u for your next How To

Shark_On_Land said:
Naww. The pro way would be through adb.
This is pointless. Would you like to tell us how to do a battery pull as well?
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
So your saying that you don't know how to do a battery pull?? Haha. I'm kidding, I'm kidding.
Well said instructions OP.

Shark_On_Land said:
Naww. The pro way would be through adb.
This is pointless. Would you like to tell us how to do a battery pull as well?
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
I think u would say Fastboot !!!

Shark_On_Land said:
Naww. The pro way would be through adb.
This is pointless. Would you like to tell us how to do a battery pull as well?
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
using adb would the expert way. its kewl for the sake of noobs. need small name change in title, but its kewl.

info[]box1 said:
using adb would the expert way. its kewl for the sake of noobs. need small name change in title, but its kewl.
Click to expand...
Click to collapse
ty for point out that ADB is the expert way +1 to you. Also ty for you feedback on the title noted and changed

Isn't this info already available in xxx threads and stickies? Nice try though.
And wtf is this in the DEVELOPMENT forum?

OP, ignore the haters. They have nothing else to do but pretend they are pro with a Nexus s
Even though most ppl figure out cwm, Its ddifferent per phone. The x10 used xrecovery, so when I switched phones I was like. . . What is cwm.
When I messed with the Droid 2 and d2global, cwm worked in a whole differant way that could brick phones.
So I think its useful for phones to have there own cement thread, as it WILL help someone who's having a tough time .
If someone's gotta be an arse about a polite attempt to help fellow xda members, get a life and go flame a fanboy thread instead.
Good job op
Sent from my Nexus S 4G using XDA App

Windst said:
OP, ignore the haters. They have nothing else to do but pretend they are pro with a Nexus s
Even though most ppl figure out cwm, Its ddifferent per phone. The x10 used xrecovery, so when I switched phones I was like. . . What is cwm.
When I messed with the Droid 2 and d2global, cwm worked in a whole differant way that could brick phones.
So I think its useful for phones to have there own cement thread, as it WILL help someone who's having a tough time .
If someone's gotta be an arse about a polite attempt to help fellow xda members, get a life and go flame a fanboy thread instead.
Good job op
Sent from my Nexus S 4G using XDA App
Click to expand...
Click to collapse
Ty very much....but also remember the more haters u have the better ur doin...everyone ol needs haters. I take it as a compliment..cuz u know they want to just like me.
Sent via Tapatalk using a Nexus S 4G powered by MIUI

You've got to be kidding me.

jralabate said:
Ty very much....but also remember the more haters u have the better ur doin...everyone ol needs haters. I take it as a compliment..cuz u know they want to just like me.
Sent via Tapatalk using a Nexus S 4G powered by MIUI
Click to expand...
Click to collapse
Haha! That's the spirit! Think positive.

+1
Sent from my Nexus S 4G using XDA App

Braneless said:
You've got to be kidding me.
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Click to collapse
PLEASE don't feed!!! EGO is big enough...
jralabate said:
Ty very much....but also remember the more haters u have the better ur doin...everyone ol needs haters. I take it as a compliment..cuz u know they want to just like me.
Click to expand...
Click to collapse
You are correct sir...
"There are only two kinds of people in the world.
The people who like me and the people who don't, the people who don't, hate me cause they ain't me."
By the way nice write up, and thanks for being a friend in the community.
Though I may not need it there was a time in my life I needed tutorials, and if I want to keep learning the layers of android, I still do, everyone does...
Thanks again!

Thanx for this, i just got my first androind phone this will help in knowing how to properly do it

Basche said:
Thanx for this, i just got my first androind phone this will help in knowing how to properly do it
Click to expand...
Click to collapse
I remember you, you were running cm7 since at least September.
Sent from my Google Nexus S 4G using Tapatalk

[Guide]Install AOKPlay

Hey! Here is another guide of mine. In this guide I will show you how to install AOKPlay by Supervenom, my current ROM of choice. It is found here: http://forum.xda-developers.com/showthread.php?t=1582118
This won't cover the unlocking of the bootloader or the installation of the fastboot files.
I recommend reading the whole thread before starting.
Good luck!
1. Make sure you have all the drivers installed, made a nandroid backup and have an usb cable, usb port and your phone near you. Also make sure your phone has enough battery left. About 50% should be plenty.
2. Download the rom+kernel from this thread: http://forum.xda-developers.com/showthread.php?t=1582118
3. Download the ROM and put it on your phones memory card.
3.5 (optional, but highly recommended: download the Gapps (Google apps), this is Google Play et cetera.)
4. Download the kernel (either Doomlords or Keirans) and put it in the folder your fastboot.exe is in. For me this is C:\Program Files\Android\android-sdk\platform-tools.
If you download Doom's kernel, make sure to download the fix aswell and put it on your sd card.
5. Now grab your phone. Make sure it is turned off. Hold the search key while connecting it to your computer. The notification light should light up blue. When you have succesfully connected it (light is blue), you can release the search key.
5.5 Read steps 6-8 carefully. I have made a .bat file that will do this for you. If you choose to use it, place it in the same folder as your boot.img, and then launch. This won't work if you have renamed the dfk4.img. If you don't trust this, you can right-click it and hit edit. This way you'll see it says exactly the same as steps 7 and 8. Feel free to do it manually though.
http://www.2shared.com/file/PizbMctP/Flash_kernel.html for Keiran's kernel
http://www.2shared.com/file/8odggnur/Flash_kernel_Doom.html for Doom's kernel
6. I assume you have Windows Vista or 7. If you do, shift-click on a empty place in your fastboot folder and click "open command prompt here" or something similar (my Windows version is Dutch, so I don't know what it's called in English).
7. Flash the kernel using this command: fastboot -i 0xfce flash boot boot.img
8. Reboot the phone using this command: fastboot -i 0xfce reboot
9. While it is rebooting, spam the back key. You will now get into CWM recovery. Use the volume keys to navigate, and the home key to select. If you have Doom's kernel, you can use the touchscreen (I believe). Make a backup.
10. Press "wipe data/factory reset". Then, wipe the cache+dalvik cache (under advanced).
11. Select "install zip from sdcard", and then "choose zip from sdcard". Find the zip from step 3 and select it. (if you installed Doom's kernel, also select the fix)
12. (optional) Also install Gapps the same way as the ROM itself.
13. Press reboot system now, and enjoy your new ROM. The first boot may take a while.
Congratulations, you just installed AOKPlay!
If I made any mistakes, please let me know.
I am not responsible for any bricked phones, broken GPU's, force-closes and killed pets.
If this helped you, I would appreciate a "thanks".
Good luck!
Ridder

On new DFK kernel, it is the back button to enter recovery
Sent from my Xperia Play using Tapatalk 2

KeiranFTW said:
On new DFK kernel, it is the back button to enter recovery
Sent from my Xperia Play using Tapatalk 2
Click to expand...
Click to collapse
Thank you, fixed.

I'd stay on AOKP but games don't work. GB FTW

I'm liking CM9 atm, maybe AOKP next week
Sent from my Xperia Play using Tapatalk 2

KeiranFTW said:
I'm liking CM9 atm, maybe AOKP next week
Sent from my Xperia Play using Tapatalk 2
Click to expand...
Click to collapse
I had that last week

Noob question
sorry for the noob question but im new to flashing roms and kernels, i have downloaded flashtool and when i connect i get the blue light then it turns orange and goes on charge and get this
-Device connected with USB debugging off
- For 2011 devices line, make sure you are not in MTP mode
i have usb debugging on and mtp turned off any ideas??
ALSO can i just install the kernel through clockworkmod instead of flashtool i noticed the kernels are .img files and not .zip??
i am rooted but my phone says no about unlocking bootloader any ways around this and can i still install this rom without being unlocked

wedgess said:
sorry for the noob question but im new to flashing roms and kernels, i have downloaded flashtool and when i connect i get the blue light then it turns orange and goes on charge and get this
-Device connected with USB debugging off
- For 2011 devices line, make sure you are not in MTP mode
i have usb debugging on and mtp turned off any ideas??
ALSO can i just install the kernel through clockworkmod instead of flashtool i noticed the kernels are .img files and not .zip??
i am rooted but my phone says no about unlocking bootloader any ways around this and can i still install this rom without being unlocked
Click to expand...
Click to collapse
I do not know the solution for the first problem myself. Maybe this thread will help you: http://forum.xda-developers.com/showthread.php?t=1678215
But it is probably the bootloader, which needs to be unlocked. You can only install custom kernels with an unlocked bootloader, but there are some roms that work with the stock kernel, like Gin2ICS (I believe)
You can't install kernels through clockworkmod. I think this is because the recovery partition is inside the kernel.

Can I use the lupus cm9 based kernel for this rom?
Sent from my R800i using xda app-developers app

ShojisXperia said:
Can I use the lupus cm9 based kernel for this rom?
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
I think it would, as long as you use the linaro kernel.

ShojisXperia said:
Can I use the lupus cm9 based kernel for this rom?
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
yes
Sent from my GT-I9300

Hi wedgess ^_^ im a lupus fan hehe. I love ur work. By the way another noob question. Im on lupus ics v8(ics beta based) kernel right now. If I shift to lupus cm9 based kernel so I have to wipe anything? And which is better lupus cm9 or lupus ics beta? Thanks in advance.
Sent from my R800i using xda app-developers app

ShojisXperia said:
Hi wedgess ^_^ im a lupus fan hehe. I love ur work. By the way another noob question. Im on lupus ics v8(ics beta based) kernel right now. If I shift to lupus cm9 based kernel so I have to wipe anything? And which is better lupus cm9 or lupus ics beta? Thanks in advance.
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
Both are roughly the same but ics one only works on ics beta based roms. CM9 kernel, can be used on any cm9 based ROMS. So depending on the ROM u use then use either the cm9 or the ICS one.
Edit- and if ur switching ROM then ye u will need to wipe data, cache & dalvik cache.
Sent from my GT-I9300

Ok thank you so much sir for ur advice and for ur great works..
Sent from my R800i using xda app-developers app

Did everything, flashed zip, rebooted, stuck at sony logo for about 10 mins
Please help

Did you remove the boot.img from zip?
Sent from my R800x using xda app-developers app

Can I install ZTE blade ROMs Dell XCD35 ?

Hi ,
Can i install ZTE blade ROMs on my Dell XCD35 without any mod
plz help me , i dont wanna mess-up

Yes. They're the same phone. Just rebranded.
The xcd is the European Gen2 blade so flash Gen2 roms only

Thanx for the info mate
Sent from my HTC One X

Before u do anything that u regret use the app Ask mr ping fish to confirm the Gen of ur phone. Then u may use the a stock rom.
+ QuantumFoam is right they are one and the same phones.
Sent from my Blade using xda premium

udaytalwaronline said:
Before u do anything that u regret use the app Ask mr ping fish to confirm the Gen of ur phone. Then u may use the a stock rom.
+ QuantumFoam is right they are one and the same phones.
Sent from my Blade using xda premium
Click to expand...
Click to collapse
No need. The Dell XCD35 is a Gen2 phone
Sent from my Ouya

ho ho
hi xda forum members,
i just want to share my happiness with you all.. i just installed coldfusionx rom on my dell xcd 35.. its working great, looking great. i'm'lovin'it.
hers what i did..
1.installed z4root- rooted my phone.
2.installed rom manger- selected first option- installed clockwork mode recovery.
3.restarted phone by pressing vol- key and power key.
4.in clockwork mode recovery - wiped data, wiped system,wiped cache, wiped dilvik cache.
5. selected option to install from sd card-- installed coldfusionx--
6. rebooted phone.
7. got stuck at dell logo--- waited for some time-- around half an hour-- nothing happened-- removed battery .. restarted the phone.. now it booted into os.
8. again booted in CWM and installed google apps zip..
now all is working nicely.
i am happy my first flashing of rom is successful.:victory::victory::victory::victory::victory::victory:

Bro is it stable?
Camera ,wifi ,gprs all r functioning well plzz reply truely
I think sum bugs are there plz tell which are the bugs or problend in this coldfusion rom
I also have same mobil plzz help me
Sent from my XCD35 using xda app-developers app

hemantaims said:
hi xda forum members,
i just want to share my happiness with you all.. i just installed coldfusionx rom on my dell xcd 35.. its working great, looking great. i'm'lovin'it.
hers what i did..
1.installed z4root- rooted my phone.
2.installed rom manger- selected first option- installed clockwork mode recovery.
3.restarted phone by pressing vol- key and power key.
4.in clockwork mode recovery - wiped data, wiped system,wiped cache, wiped dilvik cache.
5. selected option to install from sd card-- installed coldfusionx--
6. rebooted phone.
7. got stuck at dell logo--- waited for some time-- around half an hour-- nothing happened-- removed battery .. restarted the phone.. now it booted into os.
8. again booted in CWM and installed google apps zip..
now all is working nicely.
i am happy my first flashing of rom is successful.:victory::victory::victory::victory::victory::victory:
Click to expand...
Click to collapse
Some1 pointed me to konstakang ics. Its much more stable n will solve the invalid file error of google play. (Wanna download it google kongstaKANG pics n follow the modacco link
Sent from my Blade using xda premium

I rooted my cell after updating it to jb but my internal memory has turned permanentl

Sent from my GT-I9100 using xda premium

Uh if it's rooted thendownload root explorer and then open internal memory and press mount as r/w not sure if it will work also I don't take responcibility of your device so do it on your own risk best of luck :thumbup:
Sent from my ST26i using xda premium

more info
what do you mean internal memory has turned permanentl?

Need help too please!
I recently rooted my S3 i747 and then installed cyanogenmod 10. Keep in mind I am not a wiz at doing these things, however it did work. Here in lies my problems. 1. I hate this OS with a passion. Its just not what i thought it would be so I would love nothing more than to figure out how to remove it and return to stock firmware or another custom rom. 2. If i stay with this rom (for not being able to figure out how to remove it and install another) I am running out of storage internally. Its a great possibility I could have done something wrong. so with that being said, can anyone help me? I have tried more websites than I care to. thanks so much!

backup?
RicciLeigha said:
I recently rooted my S3 i747 and then installed cyanogenmod 10. Keep in mind I am not a wiz at doing these things, however it did work. Here in lies my problems. 1. I hate this OS with a passion. Its just not what i thought it would be so I would love nothing more than to figure out how to remove it and return to stock firmware or another custom rom. 2. If i stay with this rom (for not being able to figure out how to remove it and install another) I am running out of storage internally. Its a great possibility I could have done something wrong. so with that being said, can anyone help me? I have tried more websites than I care to. thanks so much!
Click to expand...
Click to collapse
did u make a backup before flashing cm?? did u flashed a custom recovery like cwm or twrp then flashed cm10?

Hmmmm
ironhide602 said:
did u make a backup before flashing cm?? did u flashed a custom recovery like cwm or twrp then flashed cm10?
Click to expand...
Click to collapse
Well what I did was follow along a youtube video... Which in turn may not have been the best idea. I remember doing some sort of back up on clockwork or something like that. I tried to go to recovery mode and restore but that didnt help. Im not sure what all I did to be honest. :/

RicciLeigha said:
Well what I did was follow along a youtube video... Which in turn may not have been the best idea. I remember doing some sort of back up on clockwork or something like that. I tried to go to recovery mode and restore but that didnt help. Im not sure what all I did to be honest. :/
Click to expand...
Click to collapse
edit... Pull the battery on your phone and put it back in. Hold up vol, home button and Power till you see the little words in the top left corner. It should say booting recovery really small. at that point take your finger off of the power button only and it will boot into Recovery.
If you have CWM recovery or TWRP you are golden...
Or else... see below
Find your phone in it's section you should be able to find a method using Odin to flash it back to stock and then you can read up and find the way to do everything you want.
Just do your research and look through the forum for your phone type/carrier and you should be able to find all of the information that you are looking for.
Search and you shall succeed!
:victory:

Sewrizer said:
why do you guys make things so complicated? the guy wants his phone back to stock.
The only thing you have to do is to go to www.sammobile.com/firmwares. Then put your phone number i9100 in the search box and choose any of the roms below. They are all stock, 2.3/4.x.x etc. The rom is in a zip file, however, you have to extract the tar file inside it.
Power off your phone then, while holding vol down, press and hold power.
Open odin in your pc then connect the phone to pc while being in download mode. press the pda button in odin and insert the .tar rom whoch you have just extracted. press start and you are done.
Sent from Area 51 using my GT-P1000
Click to expand...
Click to collapse
Way to jump in 5 days later and after a ton of pm's... and he only wanted more memory to run aps not stock.
Sent from my SCH-I545 using Tapatalk 2

Sewrizer said:
Sorry, I didn't look at the date, but that would have been a good fix.
Sent from Area 51 using my i9100p
Click to expand...
Click to collapse
Well returning to stock is just as easy as finding a stock ROM in his phones thread and flashing it, it'll be better in the long run that way as well because maybe he'll learn something.
Sent from my SCH-I605 using XDA Premium HD app

Need help to flash pardus hd rom

Friends i am on stock 4.4 kitkat and i want to install pardus hd rom can anyone help me with proper guide about rooting and installing custom recovery on 4.4 kitkat
Sent from my LG-D802 using XDA Premium 4 mobile app

First you root using ioroot 25. It's extremely easy and there are instructions in the thread. Then I suggest using AutoRec to install TWRP 2.7. Again, very easy and instructions in the thread.
Then when you are ready to install the rom, you reboot into recovery. If you don't have an app or mod to do it for you, then you can do it manually. Turn off your phone, then hold volume down and power button till the lg logo appears. When that happens, you release the buttons and immediately hold them again. You will see a window asking if you want to factory reset your phone (as long as your recovery is properly installed, then there's no need to worry). Press power 3 times and it'll boot into recovery.
Now you can install your rom. The rom thread probably have instructions as well. It's probably something like wiping dalvik, system, data and cache. Then install the zip(s).
I hope this helps. I didn't go into too much details because there's already instructions in the respective threads and it's usually fairly straight forward and most screw ups can easily be fixed. Just remember to double check anything you install matches and is compatible with your specific model so you don't brick your phone. That's all. You should be fine.
Sent from my LG-D802 using XDA Free mobile app

If you have Titanium Backup like so many others, there is a reboot to recovery in options. I use it all the time.

Sindroid said:
If you have Titanium Backup like so many others, there is a reboot to recovery in options. I use it all the time.
Click to expand...
Click to collapse
Nice. I didn't know that. I use G2 tweak box to add it as a reboot option. But it's nice to know for other devices without that xposed module.
Sent from my LG-D802 using XDA Free mobile app

Trixanity said:
First you root using ioroot 25. It's extremely easy and there are instructions in the thread. Then I suggest using AutoRec to install TWRP 2.7. Again, very easy and instructions in the thread.
Then when you are ready to install the rom, you reboot into recovery. If you don't have an app or mod to do it for you, then you can do it manually. Turn off your phone, then hold volume down and power button till the lg logo appears. When that happens, you release the buttons and immediately hold them again. You will see a window asking if you want to factory reset your phone (as long as your recovery is properly installed, then there's no need to worry). Press power 3 times and it'll boot into recovery.
Now you can install your rom. The rom thread probably have instructions as well. It's probably something like wiping dalvik, system, data and cache. Then install the zip(s).
I hope this helps. I didn't go into too much details because there's already instructions in the respective threads and it's usually fairly straight forward and most screw ups can easily be fixed. Just remember to double check anything you install matches and is compatible with your specific model so you don't brick your phone. That's all. You should be fine.
Sent from my LG-D802 using XDA Free mobile app
Click to expand...
Click to collapse
Thanx bro everything worked perfectly

KaranBhoir said:
Thanx bro everything worked perfectly
Click to expand...
Click to collapse
I'm glad to hear that.
Edit: I actually forgot something in the "guide". A bit of an oversight from me. Always make nandroid backups. They can be a huge life saver. It can be done within the recovery... Or the easier way: install online nandroid backup. You can also schedule backups with that.
Sent from my LG-D802 using XDA Free mobile app