Samsung Behold 2 :: Overclocking And Custom Kernel?

Apr 19, 2010

Any thoughts to when we might see overclocking? How much over clocking can this phone safely have? I know it has to do with a custom kernel but what is the holds back of making it custom?

Samsung Behold 2 :: Overclocking and Custom Kernel?


Samsung Behold 2 :: Custom Kernel - ODIN Ready 1.5

Mar 15, 2010

First off I want to thank these Dev. for there hard work.
Kam187, Mastermind278, droiddev, mobileband, My420Time, rkhalil2009, Nu11u5
Don't extract the file(s) from the tar that you download, the file that you download is what you need. Load Into the PDA setting in ODIN Flasher!

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Samsung Behold 2 :: Behold 2 Custom Wallpapers

Apr 11, 2010

Made these earlier in Photoshop. Go ahead and use them if you'd like. I'll be updating this thread with all sorts of different wallpapers. You are more than welcome to request any certain kind of wallpaper.

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Samsung Behold 2 :: Flashing Galaxy Kernel ?

May 19, 2010

what would happen if i flashed the galaxy kernel on my behold 2? or any other kernel for that matter... i am sort of new to this but i know alot of things too. so is this possible?

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Samsung Behold 2 :: Flashing Kernel And Security ?

Feb 15, 2010

I decided to split this off to a new thread, and hope some coders will join in and start compiling a kernel. We could then merge this with the galaxy asop effort.

Here's a bit more technical information.

Galaxy

The galaxy flash files are just yaffs images and a zimage (and of course AMSS) all tarred up. The tar format needs to be oldgnu for odin to accept it.
There's no protection at all. Thats because the glaxy is released completly security unlocked (simlocks are different, not the same thing). You can flash any image you like.

AMSS - arm ELF binary for baseband
kernel - zimage
system - standard yaffs image
recovery - standard recovery format
tar - oldgnu style standard tar file

The Galaxy also has a mtd device driver which means you can read/write its partitions with dd.

/dev/mtd

Behold 2

The behold has the same image format, yaffs, zimage and AMSS. See below for specific differences per image:

AMSS - arm ELF binary for baseband

The behold 2 also contains a partitions file. This is most likely for the AMSS, and allows the layout of the baseband to change. I'm not sure if the galaxy supports the same, but probably does.

Its safe to say you should NOT try to flash an AMSS from galaxy to the behold or vice versa.

Since the radios have the same functionality, and we don't know how to recompile and AMSS, you should never flash any new AMSS with a custom rom. Only flash AMSS with official updates.

> kernel - zimage

Just like the Galaxy this is a standard zimage. There's nothing special about it and you can modify it however you want. BUT in order for it to flash the tar file needs a special header (see tar below)

Since we can change the kernel, upgrades to newer OS versions is now possible.

> System - standard yaffs image

It appears the system image format on the behold2 is DIFFERENT to that on the galaxy. If you flash a galaxy system file onto the behold 2 you will most likely end up with a brick.

I suspect the behold 2 file has the flash address embedded inside it. Flashing the galaxy system file writes to a bad address killing the bootloader. When i say BRICK i really mean BRICK. No life in the phone at all, it wont even charge. so DONT DO IT!

In order to write a custom system to the behold 2, we will need to untar or unyaffs the modified system from the sdcard on first boot. This can easily be accomodated in the init.rc of you're modified zimage.

> Recovery - standard recovery format (protected?)

The recovery image format seems to be the same - standard android format with a ramdisk, kernel etc. However flashing it using odin doesnt work. There is some sort of protection which is preventing the image being flashed. I havnt looked thoroughly at this and someone really should. I suspect either it is signed (unlikely since the other images dont seem to be protected), or there is a write address embedded in the file, like the system file.

It would be nice to be able to flash a custom recovery, or even boot from a ramdisk, but I think this wont be simple.

> tar - oldgnu style standard tar file (with header)

Both the galaxy and behold2 have a header at the top of tar. The galaxy will flash regardless of if this header is intact or not. The behold 2 however MUST have this header intact for it to flash anything.

It seems this header contains the size, and write address of the zimage. Its possible the addresses of other images like the recovery are embedded in this too. We should look more closely at this header, especially between firmware versions to see what changes. In the mean time to replace the zimage, just hexedit your new image over the existing 'kernel' file in the tar. Remember you need to keep the size the same, so pad with zero's or just leave the remainder of the old kernel in the extra space.

Progress?

The sources that samsung provided are missing patches. This means you can't compile the behold kernel simply.

Also because the partitions are different, and the memory layout is different (compare msm/board-init files) a standard galaxy kernel will not boot.

Making the changes to get it to boot are not that dificult. It would be nice if someone who actually has a behold 2 and linux knowledge could have a look at this. It takes far to long for me to do this remotly, and frankly I just dont have that much time.

All you need to do is:

- compile the galaxy kernel (test your environment)
- replace board-init in the galaxy source with that from behold2 sources
- turn on linux console

Now boot and check if the galaxy kernel is able to see device's for each partition on the behold. If not you'll need to copy the disk/flash driver from the behold 2 sources.

Once you are able to get that far, you can merge the changes into the i7500 asop project and add a kernel switch for the behold 2. Now all galaxy 2.x progress will be directly transferable to the behold2.

You will need to make a change to the init.rc to mount the drives and unyaffs the modified system.img the first time it boots. Again a simple change.

Forgot to mention HOW to flash a kernel.

1) Take the stock behold 2 PDA tar file.
2) Use jzip (must be jzip on windows, winzip etc wont work) to remove ALL files except the kernel.
3) Extract the kernel file for reference (leave it in the tar too)
3) Download HexWorkshop or similar Hex utility.
4) Use Hex Workshop compare function to compare 'kernel' and the tar. It will highlight the kernel in the tar file
5) Open new kernel in Hexworkshop. Select all and Copy
6) Highlight the same number of bytes in the tar file and paste over the original kernel
7) Flash with Odin (JUST this tar) as PDA, and of course selecting the behold ops file.

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Motorola Droid :: Overclocking Beyond 1.1 GHz Kernel

Jul 17, 2010

I am running kangerade and cannot seem to get it running stable using anything above a 1.1Ghz kernel. I see other users on here running the same thing with kernels up to 1.25Ghz.

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Sprint HTC Hero :: Fresh 2.4 Kernel For Overclocking

Sep 28, 2010

What is the best kernel for Fresh 2.4 that will allow overclocking?

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HTC Incredible :: Install Hydra Kernel Overclocking Rom #1

Aug 20, 2010

I am trying to install Hydra Kernel overclocking rom #1 (Hydra Kernels - Overclocked Kernels) But I keep getting this error when installing. The error is as follows

Finding update package...
Opening update package...
Verifying update package...
E:signature verficiation failed
Installation aborted.
Currently running Frankenrom Senseless
Hydra Kernel Stock Undervolt
Radio 2.15.00.07.28

I tried installing all four but no luck, kept getting the same error.

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General :: Huawei 8650 Overclocking Kernel?

Jul 3, 2012

I have the Huawei 8651(same as 8650) and its already rooted and has CW recovery on it with the stock rom. I wanna keep the rom stock. I do want to overclock it. Is there a kernel I can use to OC it?

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Samsung Moment :: DE03 2.1 Custom Kernel From Source Is Out On SDX

May 19, 2010

[Kernel - DE03] joeykrim-SDX - v0.5 - May 19th 2010
Joey had it out 5-6 hours after source was released this contains Numus' battery code and more.

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Samsung Moment :: Cannot Open File Downloaded Custom Kernel

Jan 12, 2010

when i try and download odin downloader it is saved and when i go to open it it says that "windows can not open this file" then it gives 2 options of use web service to find correct program and select a program from a list of installed programs. The file is downloaded as a .rar file if it matters. This also happens when i try to download the newest kernel.

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Samsung Moment :: Use Sprint Update Utility To Flash Custom Kernel

Mar 1, 2010

We can now do partial flashes with the CL14 SBL.... If you have not had the CL14 official update yet, you can follow these steps to get it:

Remember... THIS WILL PUT THE CL14 BOOTLOADER ON YOUR PHONE!

What you need:
Sprints Update Utility

1. Create a datatool back-up.
2. Download and install Sprints Update Utility found above.
3. Run the program (now called SWUpdater) and follow all the directions until it says "Flash Downloading Complete".

Once you have the official CL14 update on your phone, or if you already had it, and you would like to flash SDX/Joey's Kernel (and Max's Recovery), follow the steps below.

What you need:
CL14 official update
An SDX/Joey's Kernel
Max's Recovery

1. Create a datatool back-up... (Although you most likely wont need it if you are just flashing a kernel.... But JUST in case, you should create a datatool back-up if you aren't confident that you wont wipe your data!)

2. After downloading and installing Sprints Update Utility, go into the binary folder (C:Program FilesSamsung ElectronicsSWUpgradeModelsBinary) and move the CL14 file to a safe place, MAKE SURE IT IS NO LONGER IN THE BINARY FOLDER.

3. Find the Kernel you want to flash and put it in the binary folder.

Note: Now you should only have one file in the binary folder (the custom kernel). Also make sure that if the file you are putting into the binary folder says 7zip or winrar, extract it!! If you dont you will get the message "Cannot access bin folder!", and you will not be able to start the download.

4. On your desktop there should be a program named SWUpgrade. Run the program and follow all of the steps through the end. After every thing finishes successfully, you will end up with STOCK CL14, this includes the CL14 SBL, along with the custom kernel you put in the binary folder (you are root).

5. Double check that everything worked by going into Settings-About Phone, under BaseBand version you should see S:M900.8.0S.CL14, under Kernel version= 2.6.27 moment(at)momentdev, under Build number= Joey's name (or any other developer who's kernel you put in the binary folder).

6. Repeat steps 1-4, putting Max's recovery in the binary folder instead of the kernel.

7. You're all set.

(If you happen to want to flash one of Zefie's kernels, repeat steps 1-4 also.)

It wasn't a great thing to get the CL14 update before, because it was hard to obtain root. But now with Sprints Update Utility, and all the new kernels, we are able to get root with the CL14 SBL easily.

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Samsung Moment :: Custom Kernel - Partial Audio Buffer And Optimizations

Dec 29, 2009

Don't know if anyone over here cares, but zefie over on SamsungMomentForum.com released a custom kernel with a bunch of fixes. Including a partial audio buffer fix, and a bunch of tweaks and optimizations. Also, persistent root so you can run a bunch of those programs on the market that require it. No WiFi tethering yet, but it is being worked on. Not sure if this includes the battery notification fix because I had already installed CL14 the other day and it's been working for me ever since. This was not difficult to install, once you have the software and drivers required, the update takes less than 30 seconds.

Here's a link:
Time for the first custom "ROM" (well kernel)

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Samsung Behold 2 :: Add Custom Sounds To App Drawer

Apr 28, 2010

Does anyone know if there's a away to add a custom sound to the app drawer when it's opened. I have an old Apple Newton that I've recorded some of the default sounds off of and one of them is the Newtons app drawer opening and closing. It's pretty cool! I use to use my Newton for everything!! I'd like to customize my Beholds app drawer.

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Samsung Behold 2 :: Cant Use Stock Apps With Custom ROM ADB

Sep 9, 2010

I'm using Bearsfan85's custom ROM, but have lost the voice dialer app that was in the Samsung's touch wiz ROM. As this is helpful to avoid car accidents while on the road, I was hoping to get it back. I have the .apk file but ASTRO file manager won't let me install it. I've tried to adb push it but I get a "read-only file error". For whatever reason, the commands "adb remount" or "adb shell sysrw" aren't being recognized, which I think is what I need to do to adb push the voice dialer back onto my phone.Unless of course, the Samsung apps just aren't compatible anymore.

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Samsung Behold 2 :: Zero Memory After Flashing Custom ROM

Jul 30, 2010

I encountered "zero memory" issue if I flash custom ROM over another with "onepackage" and factory reset doesn't help. Now I found a fix of this issue, and this should be done if you want to flash custom ROM over another.

Download and flash BH-MAN Warheads ROM http://www.4shared.com/file/nFe93F45/BH_MAN_WarHeads.html
Make sure you put in the components correctly. After md5 check has completed, you can flash and take a little break. Once you're in the standby screen on the phone, you can turn it off and reset the Odin and select the ROM and .ops file along with the ROM.

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Samsung Behold 2 :: How To Set Custom Ringtone For 1.6 No Twiz

May 12, 2010

How do i set my own ringtone, there is only a option to select the pre-installed ringtones, but i want to set my own.

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General :: Samsung GT S5302 Hard Bricked After Flashing Custom Compact Kernel

Nov 20, 2013

I have samsung galaxy pocket duos gt s5302..I have rooted it and flashed CWM recovery then I tried to flash custom compact kernel made by Deadly. After I flashed through CWM my phone got hard bricked It wont turn on What should I do?

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Samsung Behold 2 :: How To Create Themes For Custom ROMs?

May 9, 2010

I have a couple of ideas for theming but have no idea on how to actually go about making them for the phone.

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Samsung Behold 2 :: Rooting Phone / Putting Custom ROM?

Jan 17, 2010

I know how difficult and confusing It can be to root your phone, or put a custom ROM. If you need help, I will be more than willing to answer your questions.

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Samsung Behold 2 :: Custom Boot Animation / Google Builds

Jul 16, 2010

I am trying to create a custom boot animation and I have been following this tutorial ([Ref Tutorial] Changing the boot animation screen on google builds - xda-developers) but I can seem to be able to find the system folder. I am using take5 ROM but when I unzip it its md5 file, not a bunch of folder like the tutorial says.

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Samsung Behold 2 :: Creating Custom ROMs / Backups For Odin

Mar 18, 2010

Here is a brief much more complete guide to creating your own Odin images for distributing custom ROMs or making backups. Thanks to kam197, BH_MAN, chadmd23, SoulCreator, and all the other community members.

Requirements:
A Samsung Behold 2 to backup/edit/test ROMs on
Root via try3/asroot2, persistent su, or modified kernel
Working ADB connection
SD Card with ~300MB free
Cygwin - if you are working in Windows
Basic knowledge of a command line

Making the ROM Dump: The Behold 2 has 14 partitions in its flash memory, but only a few of these are useful to modify. You will want to focus on different partitions depending on what you want to do. After you make a ROM dump you will need to package it using the instructions in the following section before you can flash it. Backup your personal data? You may want to backup your data while trying out a different ROM. It is simple to do. Start an ADB shell session and obtain root access. Run the following command to dump the UserData partition: Code:

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Samsung Behold 2 :: Choose Custom Ringtone With New Rooted 1.6 V3 From Microhaxo?

Jul 29, 2010

How do you choose a custom ringtone (mp3 or what not) with the new rooted 1.6 v3 from microhaxo? I am sure it is something simple....I just can't find it.

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Motorola Droid :: Running Custom Rom - Can I Still Use Overclocking App?

Feb 20, 2010

Just rooted, if I am not running a custom rom can i still use the overclocking app?

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General :: Compile Custom Kernel With Custom ROM?

Feb 21, 2014

I just went through the process of compiling a custom ROM and they used a stock kernel. I would like to incorporate a different kernel when I compile and instead of the stock. I know I could compile them separately and have them flash together but I want one zip to flash. Just would like to go through the process to learn.

what I have to do when compiling?'

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Motorola Droid :: Get Overclocking Abilities Without Installing A Custom ROM And Wiping The SD Card?

Jun 13, 2010

I've been reading up on rooting/overclocking and the like, and I've made the decision I want to try to overclock. It just seems like it's not running as good as it should be for a phone of its caliber. Killing apps seems to be the only way to improve the speed of the phone, and I think it's unnecessary to have to kill apps every time I do something on my phone. Some people have said that uninstalling app killers and not worrying about running apps has made their phone faster, and I tried that but it was running even more sluggishly than before. So if I overclock to 800-1000 and not kill apps, would I see a noticeable increase in performance? I usually run either PandaHome or just stock Home, and I may install something like BB if I get tired of home replacements, but I don't want to install a ROM at the moment, only if it's necessary.

And I have a few questions before I get started:
I've read a couple threads about rooting/overclocking, and none of them seem to say if it's possible to just get a kernal and overclocking abilities without installing a ROM and wiping the SD card, so is it possible to ONLY get overclocking abilities without installing a custom ROM and wiping the SD card?

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Samsung Moment :: Joeys Kernel And Get Stock Kernel Back

Jun 11, 2010

where I have got right now on my phone, which is:

1. I updated to stock 2.1 using the sprint update tool.
2. I followed the video tutorial to root the phone
3. then i used joey's page (http://www.joeyconway.com/sdx/custom/index.php) to install the his kernel (joeykrim-SDX-kernel v2.0.4 (includes root)).

I have done nothing else to the phone but this and removing a couple of bloatware apps (i checked the list of permitted deletions before i removed anything.) I have not installed a new recovery..at least i dont think that I did as part of one of the other operations I performed (as an aside, i am not really sure what the custom recovery is or what it is used for, so i didnt install it...i guess i need to read up more...)

So that is where I am..but i have a couple of questions.

1) i am now having issues with my wifi connection - the signal reception is very spotty in areas where i should have atleast 2 bars of reception, and the wifi often cuts out completely....Is there any know corellation between joey's kernel and this wifi issue? I have searched the forums and have found nothing that answers this.

2) Is there an easy way to get back to the stock kernel? I have read that i can get back to stock everything by using the sprint download center where I did my original 2.1 update. But is there a way to get back to just the stock kernel without wiping the phone?

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HTC EVO 4G :: Rooted OTA With Custom Kernel?

Sep 23, 2010

I was wondering if I can flash Netarchy Toastmod Beta: 4.1.9.1 w/HAVS on this newly released OTA rom from XDA? I don't like how the stock kernel has been acting since I installed it. Would this be ok to do?

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HTC EVO 4G :: OTA / Custom Kernel - Any Difference?

Sep 23, 2010

I use Baked Snack 1.7 and I tried the deodexed version of the OTA but noticed no change. Infact I found the OTA would stutter sometimes when scrolling. Also compared to CM6 and Neterchy kernel 4.1.9.1 I don't see it being same or better besides it being official. I know pretty soon the devs will have their own version but for now I don't see a reason to update.

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Samsung Behold 2 :: Latest Samsung Behold II Marketing Effort

Mar 18, 2010

I take no responsibility for wasting your time or making you stupider.

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