Database Info

[ROM] ModdedStock_1.10 v2, A new ROM base.

This is an extremely simple ROM modification to the standard Advent Vega 1.10 system image that only alters a couple of things. These are as follows:
/system partition size increased from 128mb to 155mb. (The reason for this will be explained below)
su and SuperUser.apk added - You can use root apps as standard now.
ClockworkMod Recovery built-in.
Added Pauls simple recovery reboot app to get into CWM recovery.
That's all! No google apps, nothing else, just these simple changes. This isn't intended to be used as an everyday ROM (although there is no reason why you couldn't).
The main reason for this, is to be used as ROM base for VegaComb (and any other ROM you wish to use). I have been struggling with the Vega's default partition sizes while trying to port Honeycomb, and rather than spending tons of time trying to make stuff way smaller than it was ever intended to be, this seems like the better option.
So, flash this in nVflash recovery mode (exactly the same as the stock 1.10 image) and off you go. Done. No need to do anything else. You can use this base with any ROM, the ONLY downside is that 30mb of storage has been re-allocated from /data to /system, which most people won't even notice.
ALL future versions of VegaComb will require that you use this modded system image as a base (as they will require more than 125mb of /system space). To return your partitions back to the way they were, just re-flash the stock 1.10 image from www.myadventvega.co.uk (this is the ONLY way to restore your partition sizes, restoring from a Nandroid backup will NOT change your partition sizes back). You DON'T have to return to stock when you want to switch from using VegaComb, all other ROMs should work perfectly fine on top of this base, including Corvus5 and CM7.
Also, it's handy to have this in case you brick your Vega as CWM is pre-installed
AS ALWAYS MAKE SURE YOU NANDROID BACKUP BEFORE FLASHING ANYTHING!
Download ModdedStock_1.10 v2 Here!

Woo Hoo, good sign for things to come

Good work, Love the idea of a bigger /system..saves a lot of messing around moving apps to /data. Cheers. Paul

Just can't get this to install :-(
Keeps coming up with unknown device found!!
Ooops, forgot to plug the charger in.........sorry :-(

I use ubuntu will this work through wine or would i be better off trying to borrow a windows MC

Flash without usb cable?
Is there a way to flash this ROM without using the USB cable and recovery mode since my VPAD10s is giving a huge pain with windows 7 and the driver so I can not make it work.
Is there a version to be used with rom manager?
Thanks guys.

You need to use your PC because this ROM changes the partition sizes in the internal memory, and you need a PC program (nvflash) for that purpose.

Damn! thanks Logseman, I will keep on trying to get my tablet recognized over w7 can´t believe it´s so hard to make it work. wish me luck

Hope over to the Modaco Vega forum and search for YAUDIG and AUDI. They'll get the drivers installed for you.

simonta said:
Hope over to the Modaco Vega forum and search for YAUDIG and AUDI. They'll get the drivers installed for you.
Click to expand...
Click to collapse
Thanks simonta, already tried AUDI´s soft but no luck.
I´m starting to think that the issue might be with my pc/w7.

Great stuff!
Rgds
Lok

Hi:
Currently using vegacomb 0.6, i want to nandroid backup, install the new Rom base, then nandroid restore, and then upgrade to vegacomb 0.7 via the upgrade patch, in order not to loose all my settings.
So I would like to do a Nandroid backup, but being Android illiterate, i havent found how to do it in vegacomb 0.7.
Another question is , as I have moved most apps to SD, if there would be any problem regarding the base rom change and nandroid bacup-restore
Thanks for any hint/pointer

Which gapps should I use it for this built?
Zebwen said:
This is an extremely simple ROM modification to the standard Advent Vega 1.10 system image that only alters a couple of things. These are as follows:
/system partition size increased from 128mb to 155mb. (The reason for this will be explained below)
su and SuperUser.apk added - You can use root apps as standard now.
ClockworkMod Recovery built-in.
Added Pauls simple recovery reboot app to get into CWM recovery.
That's all! No google apps, nothing else, just these simple changes. This isn't intended to be used as an everyday ROM (although there is no reason why you couldn't).
The main reason for this, is to be used as ROM base for VegaComb (and any other ROM you wish to use). I have been struggling with the Vega's default partition sizes while trying to port Honeycomb, and rather than spending tons of time trying to make stuff way smaller than it was ever intended to be, this seems like the better option.
So, flash this in nVflash recovery mode (exactly the same as the stock 1.10 image) and off you go. Done. No need to do anything else. You can use this base with any ROM, the ONLY downside is that 30mb of storage has been re-allocated from /data to /system, which most people won't even notice.
ALL future versions of VegaComb will require that you use this modded system image as a base (as they will require more than 125mb of /system space). To return your partitions back to the way they were, just re-flash the stock 1.10 image from www.myadventvega.co.uk (this is the ONLY way to restore your partition sizes, restoring from a Nandroid backup will NOT change your partition sizes back). You DON'T have to return to stock when you want to switch from using VegaComb, all other ROMs should work perfectly fine on top of this base, including Corvus5 and CM7.
Also, it's handy to have this in case you brick your Vega as CWM is pre-installed
AS ALWAYS MAKE SURE YOU NANDROID BACKUP BEFORE FLASHING ANYTHING!
Download ModdedStock_1.10 v2 Here!
Click to expand...
Click to collapse
Thanks. one questions. Which gapps should I use for this built?
Thanks again.

hi, can i flashed this rom using CWM?

No, you can only flash it using a pc.

@all
Can someone please tell me how to use the nvflash, cause i'm clueless. I've searched using google but no luck, even on YouTube. I've downloaded nvflash but I can't work it. It keeps telling me about the drivers, although I installed the drivers. Any help would be great.
Thank you in advance.

jayk32 said:
@all
Can someone please tell me how to use the nvflash, cause i'm clueless. I've searched using google but no luck, even on YouTube. I've downloaded nvflash but I can't work it. It keeps telling me about the drivers, although I installed the drivers. Any help would be great.
Thank you in advance.
Click to expand...
Click to collapse
Hi
Switch off your Vega.
Connect it to the PC with the USB Cable.
Hold the power button on the Vega for 2 secs
Hold the back button while still holding the power button for a further 2 secs.
Release the power button but keep holding the back button for a further 2 secs.
You should now have a black screen and the Vega should be recognized on your PC (check in Control panel under USB for Nvidia Harmony or Shuttle)
The above assumes that you have installed the drivers.
Then open Modded Stock v1 or 2 which you should have already downloaded to the PC and it will install on the Vega (Vega will show NV Flash mopde across the top of the screen)
Once Modded stock is installed go to the apps menu and the recovery app is there. If you have already downloaded and put on your SD Card, the Vegacomb 9n Rom run the recovery and it will put you into CWM.
Wipe data, cache and in advanced the Dalvik cache.
Then select install from SD card and select the Rom and it will install.
If you continue to have problems Google Vegatools 4.1 and download and install
and it can do all the hard work.
Hope this helps
Stransky

Hi guys, sorry to hijack the thread an take it slightly off course but........
Buy flashing this stock modded rom, will it reset my touch screen issues? Read that its a pretty common problem.
I've tried the fix at modaco, and it works.......for a very brief period, then back to just half of my landscape screen being recognized?
I've only had my Vega a week, can any other of you more experianced fellows point me towards a fix? It would be much appreciated.
Sent from my VegaComb using xda premium

Thanks for a awesome rom.One questions,having problems with the sensor.Is there a simple solution to this?i have wiped dalvic cache but didnt help.I want to play games like NFS Shift and ather other games with sensor abilities.

Why not use Custom MTD ?
http://forum.xda-developers.com/showthread.php?t=717874

[ROM]DocHoppyRom NEXTBOOK 7 Premium*updated DocHoppyRom Full On Rootv2.0*2/14/2012

I was working on a ICS based hoppy rom. Unfortunately I just had a catastrophic screen failure, apparently when my laptop bag fell last night, it landed with enough force to shatter the screen on my nextbook! Oh well. it may be a while before I can work on anything to further the version I was working on.
FYI- Due to work, my time is very limited for working on the next version of Hoppy Rom. I apologize in advance. The company I work for is
setting up new engine test cells in China, and my self and 2 other people are main points of support! again Sorry for anything new taking so long!
DOCHOPPY HAS BEEN SIGHTED (Other than on a DAYZ server...Stay tuned.
Ok I have decided to pass along what I have been working on.
Warning***
This is for the Nextbook 7 premium ONLY!
Known working on Nextbook 7 premium tablets with serial numbers starting:YF1011
DocHoppy Presents!
DocHoppyRom Full On Root v2.0
and
DocHoppy Cramfs Style 3.0
Based off the official update image released by nextbook.
Major thanks to FINLESS BOB!!! GREAT HELPFUL GUY!
PRESENTING DOC HOPPY ROM
CRAMFS STYLE 3.0
AND
FULL ON ROOT v2.0
Disclaimer: I am not responsible for Bricked Tablets. This is known to work on tablet with SN starting with YF1011, and some YF1211.
First you will need to decide which version of the Rom you are going to load. The CRAMFS Style version has SU but you CANNOT write to the /system directory. This is a good all around Rom for those who may need SU but do not need to write to /system.
Full On Root is just that, you have full read write to the /system and can customize the Rom to your hreats content.
HOW TO INSTALL:
TO FLASH CRAMFS STYLE 3.0 Put the UPDATE.IMG file from the Cramfstyle Folder onto your SD card, while tablet is on and follow the on screen instructions.
After running the self extracting Zip file you will have a directory containing the following folders and files.
Drivers (folder)
CramfsStyle(folder)
FullonRoot(folder)
Log(folder)
Language(folder)
Readmefirst.txt
Rkusb.log
RkusbComm.dll
Setting.ini
RK29update.exe
TO FLASH CRAMFS STYLE 3.0 Put the UPDATE.IMG file from the Cramfstyle Folder onto your SD card, while tablet is on and follow the on screen instructions.
To flash Full On ROOT, Plug your nextbook into your PC via usb cable. Turn your nextbook over and with a safety pin or something of similar size, press and hold the reset button for 2 to 3 seconds.
Run the RK29update.exe
Select your Rom files via the boxes containing the .... And navigate to the correct directory for the rom you want to install.
Insert eache file in order according to the update tool.
Clear IDB. (this is like a lowlevel format for the Rom tool:
After the Tool says OK. Select Run. This will begin to load the Rom onto your tablet. It will go through loading and then checking the Rom install.
After the Rom loads and the tool comes back with an OK, patiently wait for the tablet to reboot, and load the new ROM. If the tablet is still connected to the pc via USB when the rom boots it will show the screen allowing you to select weather or not to turn on USB storage. Press the home key and you will be given a choice of Golauncher or Rklauncher. (go lock is a screen lock program.)
Enjoy the Rom!
Disclaimer: I am not responsible for Bricked Tablets. This is known to work on tablet with SN starting with YF1011, and some YF1211.
Features for both Roms:
Complete and correctly working market. It now correctly associates the tablet to your gmail account allowing purchases from market.
Launcher 3.0 as well as Go launcher ex. Launcher 3.0 was pulled from an rk2918 firmware3.0 update and put into this rom.
Google Calendar is now back and working correctly.
Original Email is back and working correctly.
Included Kindle App
Included Estrongs file explorer.
Both have SU though the Cramfs version cannot write to SW.
Removed Apps Added in last release and return to more of a original rom state.
Rom is pretty clean. And seems speedy.
Cramfs Style 3.0 Rom has 200mb internal Ram +/-
Full On Root 2.0 has 894MB of Free Internal Ram.
Cheers!
DocHoppy
www.freaktab.com
Keep in mind this is the first version of this ROM. There will be updates and changes made.
FUTURE CHANGES:
Custom Theme Changes.
More Tweaks to the system.
Long Term Wants:
Power Menu change to include recovery boot.
Power Menu change to include restart.
This is a work in progress.
Known working on Nextbook 7 premium tablets with serial numbers starting:YF1011
Linked here for image.
Non Add Showing Link.
DocHoppyFullOnRoot2.0
New Cramfs style Rom is still Available Here.
DocHoppyCramfsstyle3.0
To install DocHoppyRomv3.0, rename .img file to update.img, download update.img file, copy to SD card, and follow the prompt.
DocHoppyCramfsstyle3.0
Enjoy.
Disclaimer:
Not responsible for bricked tablets.
Enjoy!
Also visit www.freaktab.com

So freaking sweet, great work on RW!

I used Wendal's tool to decompress the cramfs file system.
As for the /system, Because the device uses cramfs, and based on everything I have read, using Wendal's tool to decompress the file system, make the changes, and compress is the only way I can see to be able to
customize the rom for the device. The image is rooted, but after the update.img is compressed, the /system file remains read only. I tested this using root explorer, but anything requiring su works fine. But all hope may not be lost, I was reading on a chumby forum someone suggested using mkfs.jffs to make it writable, but further down it notes that you would need to change the kernel (easy enough to recompile I think), to utilize a different file system. The boot loader would also need to be modified, something I am not ready to try and tackle just yet, I think I would be bricking my nextbook pretty quickly.
It is a start and I am actually learning a lot as I go.
Any thoughts or suggestions are welcome.

I am definitely a long time user / cyanogenmod / aosp fan, but as far as ripping open .img files its definitely new territory, I tried to find an internal SD card like the nook has, to maybe dump it, but I cannot find such a beast. Any progress you make is awesome. So do things like root explorer work, just not on /system due to cramfs?

Correct, root explorer does work, but due to cramfs, it does not allow you to toggle to rw from ro on the /system.
Working on taking apart apk's and customizing and rebuilding and resigning next.

just flashed this rom and it works great!
How would I go about doing a custom boot animation or image?
... even if it means flashing a new rom from clean?

This is great. Thanks. The only question I have is why do I see so few items in Market? Does it have anyhting to do with compatability?

Calendar & Sync Access
First, thank you for your work.
Before I update by Next7P, have you included Google Calendar and Sync access in this update?
I use MyPhoneExplorer and will need calendar sync to work so I can fully use for business.
Thanks.
There is another method to get Google Market on the Next7P, I am a new user so I can not post the link, but google , forums Whirlpool net au archive 1756859
, very easy and works great, but cannot get sync to work.
Dan,

Thanks for the responses!
sgtfoo : You can use Wendal's rk29xx tool to take a copy of my rom image, or the original update downloadable from nextbookusa.com, and
unpack it. You then have access to the system directory in an editable format. you can go into the system folder /system/media and replace the bootanimation.zip file with another one. Just be sure the image format is 480x 800 and that the zip file has 0% compression ratio. After you make the changes, just repack .img file via Wendal's tool and reflash.
dodoclub : Not sure why. I have a full market. You might try clearing the data and cache for the market. My market shows pretty full, I.E. I got 31050 entries when I searched for facebook in the market.
Danno65: Actually that is something I have been working on. I can get my google calendar to sync, currently I am using a calendar from the market called Jorte, which works great, how ever, googles actual calendar.apk closes unexpectedly, I am thinking it is just a version problem with the calendar, but haven't had a lot of time to follow up on it.
FYI here is the link to Wendal's tool, which makes it much easier to work on the update.img file.
https://docs.google.com/leaf?id=0B8hUXYDeoy_hNTc1YTVkYTMtNTNjZS00YjI2LTgyNDYtYjRjZjFmODdiZTQ1&pli=1
Cheers!
If you have any request or questions please feel free to ask, I will help anyway I can.

Thanks Dochoppy
Got one of these tablets for Christmass to replace an old broken tablet I use for work.
Google hosts our work email, so I still need to get Contacts and Appointments going, but I maybe able to side load them.
Noticed build.prop still has ro.secure=1. This prevents adb from having root access??

Calendar & Sync Access
DocHoppy,
I came across a post where the "Calendar.apk" and "CalendarProvider.apk" files must be in the "system/app" directory to work properly, I tried to copy these files to the above directory but found it to be read/only, will wendalls tool have to be used to get access to the directory?
Also, did you get your google calendars on your desktop to sync with Jorte on the Next7P, I tried but no luck.
Thanks
Dan
The updated image file worked great, thanks again

Thank you so much for your work in building a new rom for this thing. I am anxiously awaiting a new filesystem so we can have true root. How do we manage to recompile the kernel for ext4 support and change the /system fs?

Hello, first of all, thanks for your work!
I am having trouble loading this rom. it says there's an invalid image file in my sd card and if I want to delete.
Now, I don't know if my tablet is a never or older version of what you guys have...
Next7p
2.3.1
kernel: 2.6.32.27
build: v2.0.7.....
my serial is also different from alot..it starts with YF0511
any help or tips?

markmatters said:
Hello, first of all, thanks for your work!
I am having trouble loading this rom. it says there's an invalid image file in my sd card and if I want to delete.
Now, I don't know if my tablet is a never or older version of what you guys have...
Next7p
2.3.1
kernel: 2.6.32.27
build: v2.0.7.....
my serial is also different from alot..it starts with YF0511
any help or tips?
Click to expand...
Click to collapse
I would say the serial number would have something to do with it, check on the site for nextbook and see if your serial is in the same *batch* as ours, if the original serial is in a different group, im assuming the hardware may be slightly different? If so, you can always use his method to repack the original with root.

First off I would like to say that I was very pleased when I came across this thread from another one. I haven't flashed this ROM yet, but plan to. Thank you for your work on this as I have been searching the whole internet since I got this thing [4 weeks now] for some sort of custom ROM. It is hard to use this tablet when I have ICS on my Captivate and Vibrant. GB just isn't as cool.
One thing I hope we can work on is root access, so we then can use Titanium Backup. Then we won't have to manually reload everything when new releases come out.
With all that being said, if there is anything I can do to help, I would love to. Like I said, I plan on flashing this probably tomorrow or Tuesday. Thanks again.

For the record, I got titanium backup working fine on this rooted rom. it is capable. You just need to reboot after it restores a backup.

i'm new to android. glad to see rooted rom finally, keep it up!!!
i have a clarification, any improvement in the booting time? my device took 1min30sec (power ON to ready to use, for me, 90sec seem like not fast enough).

Good luck on improving boot time. And besides a tablet is best used when on all the time... try using the suspend state to quickly wake it. We're just starting with the early versions of this rom... give it time to grow.
Sent from my N7p using XDA App

Build.prop editing
Okay so observation:
Our tablet is not recognized as a "tablet" by the Android market, only and android device.
What prop would I have to edit in order to have us recognized as I tablet. I noticed this when:
I finally managed (through some internet tutorial before this rom) get the market working (the first version, not 3.1+). And when I downloaded apps (I'll use Minecraft Pro as an example) I noticed that the way mine looked and the way the tablet version looked via android market photos and Youtube, ours looks like an enlarged phone version rather than a tablet optimized version. What can I edit to fix this?

Flashed this today... so for it works great. Love the new boot animation. Great work and can not wait for future releases!
Sent from my Nextbook Premium 7 (Doc Hoppy's Rom v02) from the XDA app.
---------- Post added at 12:16 PM ---------- Previous post was at 12:03 PM ----------
One thing that would be great on a future release [not sure if it is possible yet with out r/w], would be a bigger data partition for apps. Moving everything large to the SD is ok, just takes longer to boot those apps. A kernel that would allow voltage control app [like CPU Master] to work also. Just a thought!

Meaning of Custom roms, kernels etc.

Can anyone explain me the meaning of 1.Custom Roms
2.Kernels
3.CMW Recovery
Also Does any Custom Rom allows me to change the boot animation?
Any help would be appreciated.

OK Im goin to try
Custom ROM - you could think of it as modified version of android. Stock ROM is ROM that comes with your phone when you but it. Custom ROMs are mostly debloated (without crap apps that just slow you phone etc. and they are tweaked to run more efficiently)
Kernel is a piece of software that is a core of your OS and basically mediates comunication between hardware and applications.
CWM Recovery is a "upgrade" of default recovery. It enables you to do NAND Backups and Restores of your whole phone, and many other great features that you cant do on default recovery. Its very powerfull tool
OK I hope that this will help you
Sent from my HTC Wildfire S using xda app-developers app

pansysk75 said:
Can anyone explain me the meaning of 1.Custom Roms
2.Kernels
3.CMW Recovery
Also Does any Custom Rom allows me to change the boot animation?
Any help would be appreciated.
Click to expand...
Click to collapse
I'm new to the Android/Rooting community so take everything I say with a grain of salt. I'm still learning, but this is what I've learned in the past month of tinkering with this stuff:
1) A custom ROM is like a custom version of the software you interact with. Android by itself is not configured to each specific device it is installed on. So, the manufacturers (like Acer, Asus, Samsung, etc) take that android compilation and configure it for the devices they sell. Each of these configurations is different and some of them prevent you from having full functionality, whereas others might be bloated/slow/need other tweaks. Enter some awesome guys here on the XDA-forums and other places who took these manufacturer-specific installs and stock installs and customized them to enhance performance, battery life, change the look and feel, and offer various tweaks & fixes.
2. A kernel is the underlying code that runs the operating system. I haven't messed with this stuff yet, I don't know much about it, and if you don't know anything just DON'T mess with it. Breaking the kernel will completely prevent you from using your device (I'm applying my computer knowledge to assume the Linux/android kernel operates on the same principles as computers)
3. CWM recovery stands for clockwork mod recovery. Basically, these stock tablets and devices include a "recovery" module built-in that lets you backup your tablet and hopefully restore it in case things go horribly, horribly wrong. CWM is an after-market/3rd-party recovery that has a TON of functionality and is very well-supported and updated. Most tutorials assume you HAVE CWM recovery installed so its a pretty awesome and pretty important program to have. The CWM recovery wiki has more information depending on your model of device.
I hope this answers your questions, and if I am mistaken in any aspect I encourage another member to correct me.
Thanks,
Opethfan89

This link explains all kinds of android terminology. I was incorrect about a few things, glad I found this: link here

Thanks for your time!

pansysk75 said:
Thanks for your time!
Click to expand...
Click to collapse
as for your other question about bootanimations....you only have to be rooted to install a boot animation. and depending on the original location (some manufacturers put it in system/media orthes in a non-root required location)
find an animation you like, download it, use root explorer or another file explorer and copy it to the system/media folder and change permissions to rw/r/r and reboot and it will play the new animation.
there are also apps on the market (Rom toolbox) that has a TON of tablet specific animations, it will download them, and install them for you....and as long as you are rooted you just have to sit back and relax

[INFO] ROM 101 + CWM Errors Solutions

Hi guys .You all know me.
I have created this thread for the sole purpose educating every newbie and noob about ROM and it's components...
Here goes
Parts of a ROM
i. The kernel.
Android (like many other Smartphone operating systems) runs on the Linux kernel. The Linux kernel was created in the early 1990’s by a gentleman named Linus Torvalds in Helsinki, Finland. It’s incredibly stable, incredibly friendly, and incredibly difficult for the layman to understand and modify. Thankfully it’s also very popular so it has been ported on to a multitude of hardware, including our Android devices.
Think of the kernel as an interface layer between the hardware and software on your device. The kernel decides when things happen, such as the LED indicator gets lit or when the soft button's LED gets lit. An application sends a request to the operating system to blink the LED. The operating system then sends the request to the kernel, which makes the light flash for the amount of time requested by the OS.
What sounds like a round-about way to get things done is also what makes the system so scalable and robust. Application developers only have to code in a way the operating system understands and the kernel makes it work on the hardware. This also keeps the application running in it’s own user-space and separate from the kernel. That means when you run the latest uber-cool app that wasn’t designed for your particular OS version, or is still very beta and it crashes, the kernel gives you the option to Force Close the application and the kernel can run untouched.
In a standard Android ROM (we will leave developer images and the like for another discussion) the kernel is bundled along with a set of instructions that tell the device how to load the kernel and the OS during boot. This is the boot.img that you see inside a zipped ROM that your not able to easily open. The device knows to extract this image to internal memory (the ramdisk) and follow a series of scripts (init scripts) to load the kernel and then the other portions of the OS. That’s what’s happening while you’re watching the boot animation. Interestingly enough this is done the same way for a PC, your smartphone, an Android tablet, or even a smart Linux powered toaster. If you’re feeling exceptionally geeky, plug your Android phone into the USB port on your PC and let the PC boot from the USB device. No, it doesn’t actually load, but you can watch the animation while it tries to match up the hardware support with what’s inside your PC. As I said, Linux is amazingly scalable and as a result so is Android.
What is a kernel? If you spend any time reading Android forums, blogs, how-to posts or online discussion you'll soon hear people talking about the kernel. A kernel isn't something unique to Android -- iOS and MacOS have one, Windows has one, BlackBerry's QNX has one, in fact all high level operating systems have one. The one we're interested in is Linux, as it's the one Android uses. Let's try to break down what it is and what it does.
Android devices use the Linux kernel, but it's not the exact same kernel other Linux-based operating systems use. There's a lot of Android specific code built in, and Google's Android kernel maintainers have their work cut out for them. OEMs have to contribute as well, because they need to develop hardware drivers for the parts they're using for the kernel version they're using. This is why it takes a while for independent Android developers and hackers to port new versions to older devices and get everything working. Drivers written to work with the Gingerbread kernel on a phone won't necessarily work with the Ice Cream Sandwich kernel. And that's important, because one of the kernel's main functions is to control the hardware. It's a whole lot of source code, with more options while building it than you can imagine, but in the end it's just the intermediary between the hardware and the software.
When software needs the hardware to do anything, it sends a request to the kernel. And when we say anything, we mean anything. From the brightness of the screen, to the volume level, to initiating a call through the radio, even what's drawn on the display is ultimately controlled by the kernel. For example -- when you tap the search button on your phone, you tell the software to open the search application. What happens is that you touched a certain point on the digitizer, which tells the software that you've touched the screen at those coordinates. The software knows that when that particular spot is touched, the search dialog is supposed to open. The kernel is what tells the digitizer to look (or listen, events are "listened" for) for touches, helps figure out where you touched, and tells the system you touched it. In turn, when the system receives a touch event at a specific point from the kernel (through the driver) it knows what to draw on your screen. Both the hardware and the software communicate both ways with the kernel, and that's how your phone knows when to do something. Input from one side is sent as output to the other, whether it's you playing Angry Birds, or connecting to your car's Bluetooth.
It sounds complicated, and it is. But it's also pretty standard computer logic -- there's an action of some sort generated for every event. Without the kernel to accept and send information, developers would have to write code for every single event for every single piece of hardware in your device. With the kernel, all they have to do is communicate with it through the Android system API's, and hardware developers only have to make the device hardware communicate with the kernel. The good thing is that you don't need to know exactly how or why the kernel does what it does, just understanding that it's the go-between from software to hardware gives you a pretty good grasp of what's happening under the glass. Sort of gives a whole new outlook towards those fellows who stay up all night to work on kernels for your phone, doesn't it?
Click to expand...
Click to collapse
ii. The operating system.
Once the kernel is loaded, the init scripts tell the Operating System to load. Android is the user interface for a custom built Java virtual machine called Dalvik. Dalvik was written by Dan Bornstein, who named it after the fishing village of Dalvik in Iceland, where his family originated from. The debate of which Java VM is superior is best left for another discussion, so I’ll simply say that DalvikVM is a register-based machine versus true JavaVMs which are stack based.
The Dalvik machine creates executable files (.dex files) which can be interpreted by the OS and run by the end user. These .dex files are OS version dependant. That simply means that applications and core functions built to work with one version of Android may or may not work well with other versions. Google provides the tools through it’s Software Development Kit (SDK) for applications to communicate with the OS.
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iii. Core functions.
No smartphone would be complete without a set of functions that allow the device to be used as intended. Things like the phone and dialer interface, the calendar, the messaging system are core functions of the Operating System. In Android, these are run on top of the kernel as separate applications. The merits (or lack of) of providing these needed functions as separate applications is once again best left for another discussion, but this is what allows developers like HTC or Motorola to replace the standard functions with alternatives that provide a different look and feel from stock. HTC’s onscreen keyboard or Motorola’s MotoBlur contact list are great examples of this. The “little guy” isn’t left out of the mix either. Handcent SMS or Chomp SMS can integrate into the OS very well, as most of us already know.
An additional set of Core Functions are provided by Google. Popularly called GoogleBits, things like Gmail, sync, Gtalk and the Android Market are applications written by Google that give an extra set of useful functions to the OS. You’ll find these on all smartphones, as well as many other Android devices.
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iv. Optional applications.
These are applications provided by the manufacturer to give the device even more usability. Things like the Amazon MP3 store, PDF readers, Corporate Calendar etc. allow you to do even more with your device. Remember - Droid Does
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B. How is a ROM packaged?
In most cases a ROM will come packaged in a .zip file. The recovery image’s kernel (yes, it has one too!) has the ability to unzip and copy the contents into the correct place. Inside this zip file is a folder (META-INF\com\google\android\) that contains a script prepared by the ROM “cooker” (another of those techie terms - it means the person(s) who developed the ROM) that tells the system what to format, what to copy and where, and any file operations that need to be done. Each device does things a bit differently, but this script is where it all gets done. More on this folder later.
You’ll also see a /system folder. This is the meat of the ROM. It has the necessary OS files, the Core functions, and any optional applications the cooker decided to include. The folder is structured the same way it is on your device - /system/app, /system/framework, etc. The whole tree is usually copied over and the existing /system folder is overwritten. The cooker uses the script to tell the kernel to erase the existing system folder, copy the new folder over, and set the file permissions.
Sometimes you will also see a data folder. This usually is space set up for optional applications, including optional system tools like busybox or SuperUser white list. These applications could be placed in the /system folder, but placing them in the data folder makes it easier for the end user (you and I) to remove or update them as needed.
You’ll also notice a META-INF folder. This contains the update script we talked about earlier, as well as secure keys that need to be provided so the device knows the update can be trusted. A special note needs made here. Trusted means that the update is trusted to be in the correct form to load the device. It in no way means the ROM is safe from malicious code. Anyone is able to use a set of test keys and create a ROM that will flash and run your device - even those people with bad intentions. Flashing and running a custom 3rd party ROM is putting faith in the cooker that he or she not only knows what they are doing, but are honest as well. Also, some Motorola custom ROMs will have a small update.zip stored inside this folder to be run on first boot of the device.
Finally we are left with the boot.img file. This is the kernel and ramdisk image we discussed earlier. Your phone copies this over to be decompressed and run when the device boots.
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2. How do I install a ROM?
In this section we’re discussing how to install a custom 3rd party ROM. ROMs from the manufacturer usually have a utility that runs on your PC to flash and load the new image.
A. Got Root???
Yes ?:good:!!!
Custom ROM’s simply will not load on devices that aren’t rooted. In theory, it may be possible to sign a 3rd party ROM with the keys that the stock recovery image will flash, but for the most part you need to have flashed a custom recovery image before you can change your device’s ROM. Instructions and tutorials on how to root your device are all over the internet. Some are good, some are bad. The hacking forum is a great place to go and learn more about rooting and how to successfully get it done on your device.
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B. Recovery
Most Android devices have had a custom recovery image written for them. This will overwrite the stock recovery image, allowing you to flash 3rd party ROMs as well as giving extra functionality. Help with finding and flashing the custom recovery image for your device can also be found in the hacking forum. The installation of a custom recovery image also allows for a very important function. Backup and restore.
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.C. Nandroid
Nandroid is a set of bash scripts and code written by that copies the state of your system and stores it in a folder on your SD card. You can then use the restore function of Nandroid to restore to this point at any time. This is a priceless feature and reason enough to root your phone. It’s included by default in most custom recovery images, and the code is freely available to use if you’re inclined to write your own recovery image.
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In most situations, using Nandroid to back everything up is easy:
1. Verify you have a memory card with enough free space (~300MB to backup, ~500MB to restore).
2. Reboot your device into recovery. It’s slightly different for each device, once again hacking forum FTW!
3. Navigate through the menu and select the Nandroid Backup function.
4. Apply your choice and wait for the device to tell you it’s finished.
It’s always good practice to copy the entire nandroid folder from your SD card to a safe place. You can then copy it back to the SD card if the card is ever damaged, lost or erased.
D. Copy and Flash
You’re rooted, have downloaded a custom ROM, have your system backed up and are now ready to flash your device. This is not nearly as scary as it sounds.
1. Mount your SD card to your PC, and copy the .zip file to the root folder of the card. Don’t unzip the file, and don’t look for a folder called root. The root folder in this case means the base folder, what you will see when you mount your card to a PC or the device.
2. Reboot your phone into recovery.
3. Navigate through the recovery menu and select the flash update option. Depending on your recovery image, the file may need to be named update.zip, or you may be able to select any zip file on your card as long as it’s the correct format. The cooker knows this as well and if the ROM needs to be named update.zip it will be.
4. Apply your choice and wait for your device to tell you it’s finished.
5. Reboot.
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It’s worth noting that many times a new ROM will require that you wipe and factory reset your devices data. While inconvenient, it’s often necessary to get rid of the old data as it may be incompatible. As long as you’re using the cloud for calendar and contacts, they will be re- downloaded and stored back on your device automatically.
Credits
The internet
And other sites related to android development
And of course me
My Galaxy R forum friends !!

ERRORS encountered in CWM Recovery
.
What is CWM Recovery ?
ClockworkMod Recovery is a custom recovery for many Android devices. It is considered to be the most popular recovery for Android due to its easily-ported nature, and integration with ClockworkMod ROM Manager by Koush(Koushik Dutta). The easiest way to recognize it is by the printed name when it first starts, and the background logo of a gear and hat.
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ERROR STATUS 6
This is usually caused by CR/LF EOL(Windows style End Of Line) in updater-script. Change it to LF EOL(Unix Style EOL) using Linux command: dos2unix updater-script, then re-signing the ZIP, will usually fix this error.
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ERROR STATUS 7
This is usually caused by a corrupt download, or bad file signature. Re-downloading (or re-signing) the ZIP will usually fix this.
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We have been consistently seen and heard people facing error “Status 7″ error while trying to flash or install
custom ROMs or firmware packages on their Android smart phones or tablets with ClockworkMod Recovery. Many
of the users are nowadays facing this problem with CWM Recovery while flashing .zip files of modded or custom
Ice Cream Sandwich (ICS) or Jelly Bean (JB) ROMs on their devices. So, you have also downloaded a custom ROM,
placed its .zip file in your phone’s or tablet’s SD card, booted into ClockworkMod Recovery, selected – “install zip
from sdcard” and then chosen the .zip file of the ROM to get it installed on your device. But instead of getting
flashed successfully, if you are facing the issue mentioned below, then just keep reading this article to find out
what’s wrong and fix up the problem :
Finding update package…
Opening update package…
Installing update…
Error in /sdcard/custom-jelly-bean-rom.zip (Status 7)
Installation aborted
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or the following error right after CWM recovery shows –
Installing update…
assert failed: getprop(“ro.product.device”) == “I9103″ || getprop(“ro.build.product”) == “I9103″ || getprop
(“ro.product.board”) == “I9103″
Error in /sdcard/android-4-1-1-ics-rom-latest.zip (status 7)
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So, if you are facing any of these errors while trying to install the desired custom ROM package on your Android
phone or tab, then you may try a various things or steps which may turn out to be the workaround of this
problem. Here are a few tips to get this “Status 7” error fixed in ClockworkMod Recovery and flash the ROM
successfully on your device :
(1) First of all, make sure your device’s bootloader is unlocked. If it is already unlocked but you are still
not able to flash the ROM, then just extract the .zip file of the ROM into a new folder, find the boot.img file from
that directory and flash it up on your phone or tablet via fastboot on your PC.
(2) Make sure that you are having the appropriate Radio or Baseband version installed on your device which is
supported by the custom ROM you are trying to flash. Most of the ROMs requires the latest version of Baseband, so
just update or upgrade your device to the latest Baseband version and then try to install the ROM once again.
(3) Update your device to the supported / latest build of official firmware before trying to install the ROM. You can
do it from – Settings > About Phone / Device > Software Update.
(4) Make sure you are having the supported or required kernel installed on your phone or tab. If it’s not, then flash
a new kernel right away and try to install your custom ROM once again.
(5) Is the ROM which you are trying to flash really works ? Find out whether it is working for other users or not.
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NOW
ERROR STATUS 0
This is usually caused by an incompatible update-binary in edify ZIPs. Replacing it with a compatible one, then re-signing the ZIP, will usually fix this error.
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Now it's time for the partitions :good:
Let’s start with a list of standard internal memory partitions on Android phones and tablets. These are:
/boot
/system
/recovery
/data
/cache
/misc
In addition, there are the SD card partitions.
/sdcard
/sd-ext
Note that only /sdcard is found in all Android devices and the rest are present only in select devices. Let’s now take a look at the purpose and contents of each of these partitions.
/boot
This is the partition that enables the phone to boot, as the name suggests. It includes the kernel and the ramdisk. Without this partition, the device will simply not be able to boot. Wiping this partition from recovery should only be done if absolutely required and once done, the device must NOT be rebooted before installing a new one, which can be done by installing a ROM that includes a /boot partition.
/system
This partition basically contains the entire operating system, other than the kernel and the ramdisk. This includes the Android user interface as well as all the system applications that come pre-installed on the device. Wiping this partition will remove Android from the device without rendering it unbootable, and you will still be able to put the phone into recovery or bootloader mode to install a new ROM.
/recovery
The recovery partition can be considered as an alternative boot partition that lets you boot the device into a recovery console for performing advanced recovery and maintenance operations on it. To learn more about this partition and its contents, see the ‘About Android Recovery’ section of our guide to ClockworkMod recovery.
/data
Also called userdata, the data partition contains the user’s data – this is where your contacts, messages, settings and apps that you have installed go. Wiping this partition essentially performs a factory reset on your device, restoring it to the way it was when you first booted it, or the way it was after the last official or custom ROM installation. When you perform a wipe data/factory reset from recovery, it is this partition that you are wiping.
/cache
This is the partition where Android stores frequently accessed data and app components. Wiping the cache doesn’t effect your personal data but simply gets rid of the existing data there, which gets automatically rebuilt as you continue using the device.
/misc
This partition contains miscellaneous system settings in form of on/off switches. These settings may include CID (Carrier or Region ID), USB configuration and certain hardware settings etc. This is an important partition and if it is corrupt or missing, several of the device’s features will will not function normally.
/sdcard
This is not a partition on the internal memory of the device but rather the SD card. In terms of usage, this is your storage space to use as you see fit, to store your media, documents, ROMs etc. on it. Wiping it is perfectly safe as long as you backup all the data you require from it, to your computer first. Though several user-installed apps save their data and settings on the SD card and wiping this partition will make you lose all that data.
On devices with both an internal and an external SD card – devices like the Samsung Galaxy S and several tablets – the /sdcard partition is always used to refer to the internal SD card. For the external SD card – if present – an alternative partition is used, which differs from device to device. In case of Samsung Galaxy S series devices, it is /sdcard/sd while in many other devices, it is /sdcard2. Unlike /sdcard, no system or app data whatsoever is stored automatically on this external SD card and everything present on it has been added there by the user. You can safely wipe it after backing up any data from it that you need to save.
/sd-ext
This is not a standard Android partition, but has become popular in the custom ROM scene. It is basically an additional partition on your SD card that acts as the /data partition when used with certain ROMs that have special features called APP2SD+ or data2ext enabled. It is especially useful on devices with little internal memory allotted to the /data partition. Thus, users who want to install more programs than the internal memory allows can make this partition and use it with a custom ROM that supports this feature, to get additional storage for installing their apps. Wiping this partition is essentially the same as wiping the /data partition – you lose your contacts, SMS, market apps and settings.
With this, we conclude our tour of Android partitions. Now whenever you install a ROM or mod that requires you to wipe certain partitions before the installation, you should be in a better position to know what you’re losing and what not and thus, you’ll know what to backup and what not.

Nice thread, maybe add error status 0 for CWM
Sent from my C6603 using xda app-developers app

krabappel2548 said:
Nice thread, maybe add error status 0 for CWM
Sent from my C6603 using xda app-developers app
Click to expand...
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Done !!!!

Great thread, You are seriously doing well.:good:

MY thanks just ended
will use the mob app to thank u bro !!
After all you inspired me for this thread not

Moved to android general as per OP request.

Android Guide For Beginners

You might be confused of many terms in Android if you are a new developer or new to android. Here I got some meanings of these terms. Please give me some thanks if this topic helps you.
i. Root - Talking root access means that you have gained the full control of your device. You have made the system directory as read/write. When you buy a device there may be some files which the manufacturer deter to modify or delete since doing this may hamper the working of your device. But by gaining root access you can have the control of your visuals and looks of your phone. It is somewhat similar to the Administrator of Windows OS.
ii. The bootloader is a line of code that is executed even before your Android operating system boots up. The bootloader’s code is specific for each make and model of the many Android devices. Bootloaders come “locked” because the device manufacturer doesn’t want you tinkering with the software that they worked so hard to optimize for that particular piece of hardware. Unlocking the bootloader allows you to tinker with the phone’s firmware, or even replace it with a custom firmware (aka: ROM). It is important to note that unlocking your bootloader will erase all data stored on your phone, essentially putting it back to a “factory reset” state, so you’ll want to save any pictures, music, or any other important files that are on your device.
iii. Recovery - Once your bootloader is unlocked and you have rooted your device, you will need a custom recovery. A recovery is a piece of software that is called up separate from the actual Android operating system. Its purpose is to make changes to the Android OS at a core level, such as delete user data, apply updates and more. The stock recovery is limited in function, so if you are planning on modifying/hacking/rooting your phone, you will need to install a “Custom Recovery” such as Clockwork Mod Recovery. A custom recovery will allow you to make backups, restore them, wipe partitions, install custom software and more.
iv. Backup / Nandroid - Once your custom recovery is installed, you will want to make a backup (also known as a Nandroid). A Nandroid is simply a complete and total backup of your phone. It will store all of your data, apps, settings, SMS messages, and more, basically allowing you to restore your phone to the exact state that it was in when you made the backup.
v. Wipe - Now that your backup is made, you don’t have to be afraid of making changes to your phone or losing data, since you can always restore it (just be sure to not delete the backup!). Now you can “wipe” your phone without worry. Wiping is deleting all the user data from your phone, essentially resetting it to its factory state. You can also wipe (ie: delete) other partitions of your phone like the cache partition. It is always recommended to wipe your phone before installing a custom ROM (we’ll get to that in a second). You can wipe your phone via the custom recovery you installed.
vi.Flashing - Flashing is the process of installing some sort of software or code via your custom recovery.
vii. Flashable ZIP - A flashable ZIP is the actual file that you install or “flash” via the custom recovery to make changes to your phone’s software. It is a normal .zip file that contains the lines of code to modify your software. These Flashable ZIPs can be used to flash a ROM, Kernel, Radio, mod, and more, which we will define below.
viii. ROM - A ROM is the main firmware or operating system that your phone runs. Just like Windows 7 runs on your PC, or Mac OSX runs on your Macbook, a ROM is the main software you interact with to use your phone. It includes all the system apps (messaging, email, phone), the launcher, the notification bar…everything really. Google’s Nexus line runs a “stock” Android ROM (meaning it’s unmodified) while manufacturers make significant changes to the look and feel of their ROMS before they ship them with your phone (for example: note the difference between the Samsung Galaxy S III’s software and the software on LG’s Nexus 4) . Code-savvy developers have taken the manufacturers’ code and created their own “Custom ROMs”. These ROMs can dramitically enhance the look and feel of your phone, and often add tons of useful features. Two very popular custom ROMs are CyanogenMod and MIUI. A ROM is made for a specific model phone and comes in a Flashable ZIP file that is installed (“flashed”) via your custom recovery.
ix. Kernel - Unlike a ROM the Kernel does not alter the look and feel of your phone, but is a “deeper” line of code that rests beneath the surface, so to speak. It tells the software how to interact with the hardware.

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guitarboy021 said:
Thank you so much man. This is EXACTLY what I was looking for! I saw ur post on my thread and followed it. Thanks man. Ill definitely give this one a try.
Sent from my LG-E988
Click to expand...
Click to collapse
Thank you. Go to this thread of mine to know about Custom Recovery and flashing it http://forum.xda-developers.com/showthread.php?t=3046718

Thanks a lot!

seemeandyou said:
Thanks a lot!
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If you are helped then please hit the thanks button