Do most people always backup the ROM, w/ ROM manager before installing new kernels?
Also is there a way to set the number of backups you keep w/ ROM manager?
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I am currently running what is in my signature. I did do a rom backup before I flashed the one in my signature. I want to switch to another custom rom. Can I just flash a new rom over the rom I am currently running or do I need to go back to my stock rooted group that I originally backed up?
View 1 Replies View RelatedDoes anybody know if the new desktop kernel patch written by Mike Galbraith can be applied or modified to be used in the android kernel?
Tiny Linux Kernel Patch Delivers Huge Speed Boost - PCWorld Business Center
I haven't messed around with android kernels yet, but I have applied it to my current Ubuntu 10.10 system and you can see the difference. Its like night & day!
I recently rooted my Evo using UnRevoked 3.2 and flashed Fresh 3.3 on it. I'm generally happy with the results, the upgrade seemed to fix some problems with random reboots and screen locks I was having on stock (I'm thinking that moving a lot of apps to SD may have helped, as I seemed to be always low on memory).
In any case, I do think the phone is a bit "laggy" after the update. I downloaded FPS2D and checked my FPS, seem to average right around 50fps with std dev of 9. It seems like many people are getting much better screen performance using the custom netarchy 4.1.9 kernel. I'd like to give that a try but I have a couple of basic questions...
1. I will do a nandroid backup and Titanium before I flash, but I noticed that restoring apps last time was a drag...I use FolderOrganizer and it's a pain to get them all set up the way I had them. Does flashing the kernel wipe your phone clean? How much app/Sense restoring would I have to do assuming all goes well? I'm assuming that flashing the kernel has little to no effect on installed apps or Sense screen layouts...he cried hopefully...
2. I'm assuming here that Fresh 3.3 is compatible with netarchy 4.1.9, correct? Also, I saw an indication that netarchy 5.0 may be around the corner...is it better to wait? Or is reflashing a kernel that easy so there's no reason to wait?
3. It looks like an overclocking app is included in the netarchy kernel? Is it necessary to tweak the profiles, and if so what are the recommended tweaks for best performance? I have some experience with this coming from an overclocked Palm Pre, but I care a lot more about my Evo...I don't want to hurt it!
4. Battery performance is less of a concern than screen performance for me...I have chargers everywhere. Still, I'd like to get the best battery performance I can. I believe there may be "rogue" services on my phone that are eating up the battery (for example, I use Exchange ActiveSync and I turned it off recently because sync problems were causing it to stay on in the background). What's a good way (or app) to identify rogue apps/services and kill them?
I have a rooted Droid Incredible, running stock 2.2 and Hydra's 1.15 ghz kernel. I found a ROM called "Light Speed," and I'm wondering if I should try it out. Here's the link: [ROM] Light Speed - Droid Forum - Verizon Droid & the Motorola Droid Forum I'm thinking of the sense version. Do you think it will work? Also, it says it features KingxKernel #6. Is this a stable kernel? How many ghz will it go to? Any other tips before I flash? (Ex. wipe, backup)
View 3 Replies View RelatedDecided to try Snap's 7.5 kernel. Did a full wipe and flash with cm6 but lost wifi. Tried nandroiding back and still no wifi. So, wifi is broken. How do I fix it?
View 2 Replies View RelatedCan i install kernel after flashing my new rom?.I mean i flashed my rom and can i now update my kernel without flashing rom again.
View 1 Replies View RelatedI hear that some kernals are better than others and I assumed they change when you change your ROM but I'm not sure. I feel like I would have better battery life with a better kernel.
View 1 Replies View RelatedI did a research regarding Flashing Kernels and Roms and currently i have installed Cyanogen 9.1 for my device.
1.Will I be able to update my phone and bring back to old ICS firmware via SUS once i brick my phone(I have already unlocked the bootloader via fastboot method)?
2.Evrytime when i flash the Rom(say CM9) i used to flash kernal(boot.img) for the respective rom.Is this necessary all the time? Will i able to flash a GB rom on ICS kernal(I am afraid to give it a test)?
3.Regarding CM9.1 which i have installed ryt now,I am satisfied with the performance,but i want a stable ROM wud make me happy with a better battery life unlike CM9.1. Any GB/ICS ROM which wud have a stable performance with descent battery life.
4.After using GB for a long time,i was very much addicted with the Phone pad kinda keyboard,but when ICS came into picture everything vanished,Smartkeyboard Pro is no gud,Touchpal is conjusted,i want the exact GB keyboard in ICS.
Phone: Xperia Ray
Bootloacker:Unlocked
ROM: GB Stock Rom
So I was under the impression that you could use ROM manager or ClockWork mod to install a custom kernel that I had downloaded to my SDcard. I downloaded a low-volt, overclock kernel and I have discovered that I don't quite know to flash it to my phone.
View 3 Replies View Relatedwhat 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?
View 3 Replies View RelatedI 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.
I got a rooted phone. how do i remove a kernel from my phone without flashing another rom?
View 9 Replies View RelatedSo I've been looking into flashing custom kernels, and I can't seem to find an answer to this question. Basically, I'm wondering if the kernel remains after installing a new nightly, or do I have to reflash the kernel every time the ROM updates?
View 1 Replies View RelatedWhen I got my phone at the end of last year I rooted it using a Chain-Fire kernel - v 4.2, I think. After flashing, it worked perfectly, since when I have flashed the old bootloader to get my USB Jig working to remove the yellow triangle and flashed a patch again to allow the USB Jig to reset the binary counter.
I have very much wanted to install and get the new Sky Go application working.
What I had to do was flash the Stock kernel for my Stock Rom - I have never messed with my Rom - it is Gingerbread 2.3.4 in a CPW phone here in the UK.
Doing the flash and installing Voodoo OTA (to temporarily hide my root) has been enormously successful
Now then to my query....
The original Chain-Fire mod v 4.2 installed CWM.
After of course cancelling the "hide root" function to show my phone as rooted once more, I went to do a backup, using CWM but it refuses to work. It says my kernel needs v 5.0. Obviously the Stock Rom I flashed to get Sky Go working has thrown CWM some what.
I have downloaded Rom Manager from the Market but this seems not to work either - it starts to work (reboots) but then halts with the following messages: -
E : failed to verify whole-file signature
E : signature verification failed
Installation aborted
What I would like is some way of installing a backup previously made before flashing the Stock kernal and also to make a fresh backup now.
is it possible to unlock samsung galaxy s plus (i9001) by installing any of the moded firmwares/kernels?
View 1 Replies View RelatedI currently have bekit 1ghz kernet installed, but I was interested in trying out some other kernels. Can I just install them via Rom Manager over the first kernel? Or is there some kind of uninstall process I should use first?
View 3 Replies View Related[Q] IS IT NECESSARY TO UNLOCK BOOTLOADER BEFORE FLASHING KERNEL FOR SONY XPERIA... and also need a latest flashtool tutorial link..
View 1 Replies View RelatedI have an xperia X8 with some naa kernel and xperiadroidx 6.1.The thing is that with this custom kernel and ROM when i put a SIM from another network carrier, the question asking for the SIM-unlock code input is not showing up. (this appeared before when phone was in stock state).Is it possible to do it without re-flashing to stock?
...or i have to put back the phone to stock? What is the easiest/safest/best way to do this? using the restore option in "PC companion" SE app? Is it only needed to put the stock kernel and ROM, or Do i also need to re-lock the bootloader?
I don't need the whole explanation, just a little guidance, just a few tips to know what to do, then i can google/search myself for the specifics on how to actually do it.
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?
View 6 Replies View RelatedI want to try flashing a custom rom on my hero 2.1 but the thread said that first I must backup my stock rom (which I did) and also backup my prl. (this seems a little more complicated) Did all you guys have to do this too. how did you do it. the method they describe uses a program that requires my msl code which I dont have or know how to get. I called MTS and they wont give it to me.
View 3 Replies View Relatedrecently one of my friends that have the same android phone than me (xperia x10 mini pro) try to update the system and he bricked the phone, after a some hours work i has able to fix the kernel using flashtool and one of the forum tutorials, but the off-line charging has not working, so a update the kernel and turns out pretty good. So i started to think about update my one, but before this i need to know if it's possible to make a kernel and boot loader backup, maybe without the system, to i be able to back in time just in case some think wrong happen.
View 1 Replies View RelatedNow that I'm fully rooted I'd like to experiment with a few different ROMs. My issue is: I'm a heavy user of Folder Organizer (great product). After I rooted initially, I flashed the Fresh 3.3 ROM after backing up using Titanium, Astro File Mgr, AND MyBackup Pro (I don't mess around). After I was done with the flash, I went to restore with Titanium. It didn't restore all of my apps, and actually not much of my data (for example, it didn't restore SMS for some reason). No worries: I went to my Astro backup, it got a few more of my apps, no data.
Finally, I turned to MyBackup Pro, fortunately it restored my SMS data. To wrap it up, I wound up having to restore a few apps from AppBrain, and I had to reset all the folders in Folder Organizer (a real pain). Is there a can't miss backup/restore process when flashing ROMs with Folder Organizer? I don't mind having to restore a few missed apps, but it takes hours to get the folders back. I'm also paranoid about the missind SMS data, but I think I have that covered.
First of all, salute to BH_MAN for offering so much joy to BHII users.
My questions is how to back up my apps. Everytime I flash a new ROM, all my installed apps and settings are wiped away. If there a way to back them up and restore them after flashing?
I did not brick a tablet without having a cwm installed first and a nandroid backup. The tablet is an allwinner a23 not in some peoples opinion worth a lot of effort to fix. We have an identical tablet with the same firmware. If I root and install a custom recovery on the unbricked tablet can that zip be flashed without a custom recovery? I have looked about a bit and there seems to be conflicting opinions on this. The only prob I can see is the stock recovery may not have the option to wipe the dalvik cache.
C5303
About two days ago the DamageControl2.0r ROM started giving me the WiFi issues, and where I am with no EVDO or even E network. I rely on the WiFi at work and home, and wherever else I may need it. So I attempted to flash back to Fresh2.0c using the wipe/reboot and all the normal steps. Well it kept booting back to the Damage Control ROM. Someone suggested I use Nanroid backup then tried reflashing the rom. Which ended up working. Well I then decided I wanted to try the New Kitchen, because I love tinkering with this stuff, and it wouldn't flash again. I had to use Nandroid backup to go back to Fresh2.0c and have it working properly. Is there something I could be missing completely?
View 3 Replies View RelatedInstalled Flash Rec after trying to root my hero (following the guide stickied to the top of this forum) and its not giving me the button/menu item to flash it. My options are to Download Recovery Image (Grayed out) or Restore Backup Image which once clicked gives information 'Backup Complete'. How do I proceed?
View 3 Replies View RelatedI have the root app Titanium Backup. When I root my friends' phones, I like giving them all my root apps with a quick transfer of my SD card app backups from AppControl.
BUT, I have never been able to find the backup file for Titanium Backup. I realize they can just download it from the Market, but where I work I get no service so I can't download it for hours for them.
Does AppControl or even Titanium Backup itself actually back up Titanium Backup? It seems almost like they skip over the APK because I can never find any backed up APK files that have the words "Titanium" or "Backup" in it. I've never been able to find the file!
I DLed Titanium Backup, but it wasn't obtaining root access. I read here that I probably need to update to a newer version of BB. After a bit of a fight, I finally managed to get BB 0.4 onto my Droid. I figured I was safe b/c I have Lookout, which also backs up data. Yeah, it backs up contacts and pix, that's it. So here I am w/ a nice, shiny new rom, and a completely wiped phone.
Now, I know my old info is still there. I know I could just recover into my last version. But then I wouldn't be on this rom. Is there any way for me to get that info on here, or do I have to do everything manual? Or could I restore the old version, and not need to do a wipe when flashing the new rom?
Man, no matter what I good I start to feel about myself w/ what I've already learned from you guys, I'm quickly reminded that I'm barely scratching the surface.
I have already rooted my hero but I did not flash a recovery image or perform a nandroid back up mostly because I could not find clear instructions on how to do so, which caused me to have to completely wipe my phone and start over after I deleted some programs that caused my loop over and over. I know the commands I need to run in adb to flash the recovery image but I do not know where to download the recovery image or where I need to store it I also can't find anything on nandroid back could somone please explain these in detail with the steps I need to take so I don't need to start from square one again.
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