[Q] Upgrading Rom - Desire HD Q&A, Help & Troubleshooting

Hi i am pretty new to his i have upgraded to CM7 and everything works fine but i noticed posts about changing the kernal, I am now looking to change to a new rom, the RCMIX do i have to change a kernal or shall i just full wipe and install rcmix zip from the recovery

xvicedice said:
Hi i am pretty new to his i have upgraded to CM7 and everything works fine but i noticed posts about changing the kernal, I am now looking to change to a new rom, the RCMIX do i have to change a kernal or shall i just full wipe and install rcmix zip from the recovery
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Just a full wipe, and flash RCMIX from recovery that will install it's own kernel.

i believe you come from Samsung or any other device where you need to flash kernel first and then flashing rom.
HTC is different, the rom itself contain the kernel. Just flash the rom, it contains the kernel.

Try out the ROM first, and then if you want to further optimize your overclocking, you can try other kernels. (usually the built in rom will work just fine)
Personally I recommend Jkoljo's utility to do that

If you do find a kernel you like and you flash another ROM you will have to re-flash the kernel again.
This is because, as previously stated, ROMs will install their own Kernel.
Sent from my Desire HD using XDA Premium App

Related

[Q] FROM ARHD 4 Beta to ARHD 3.3

hi, i got my DHD few weeks ago & couple of days ago i successfully installed ARHD 4.0 beta 4 sense rom on my DHD exactly as the way it has been instructed on the specific thread. everything is running smoothly, good battery life without using any battery saver programs like juicedefender, greenpower.
now i was thinking about trying the ARHD 3.3 rom as it is overclocked to 1.22ghz. how can i install that on my DHD? do i have to downgrade anything? or i can just download the rom & use rom manager to install it?
thnx in advance for the help.
Download ARHD 3.3 and full wipe to your SD card, flash full wipe and then the rom in CWM recovery. Note that this will be a clean install so you have to do a backup if you have something important on your phone.
thanks Hawks556. do i have to change any of the kernel or radio or leave it as it is & do a full wipe & install the rom?
There is a kernel included in the rom. Afaik it's one off buzz' kernels. After flashing the rom feel free to try any sense kernels.
There is no need to flash a new radio if your old one is performing well, but if you encounter any battery drain issues or weak signal try another radio.
Sent from my Desire HD using Tapatalk
Thank you all, done it, working fine.

Question regarding the new 2.3 OTA kernal and rooted ZIP

So, there is Haus's thread which provides download links to the ROM, Kernel and Radios.
I am currently running Salvage Mod and a Tiamat kernel.
If I flash the 2.3 OTA ROM while still running the Tiamat kernel, will I run into issues?
Mindspin_311 said:
So, there is Haus's thread which provides download links to the ROM, Kernel and Radios.
I am currently running Salvage Mod and a Tiamat kernel.
If I flash the 2.3 OTA ROM while still running the Tiamat kernel, will I run into issues?
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Click to collapse
No because after you flash you will no longer be running the Tiamat kernel you will be running the new stock HTC kernel. Flashing the ROM flashes the kernel as well.
zone23 said:
No because after you flash you will no longer be running the Tiamat kernel you will be running the new stock HTC kernel. Flashing the ROM flashes the kernel as well.
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Oh...
I was under the impression (based off the links provided in the other thread) that the ROM and kernel needed to be flashed separately.
Thanks for clarifying!!
Mindspin_311 said:
Oh...
I was under the impression (based off the links provided in the other thread) that the ROM and kernel needed to be flashed separately.
Thanks for clarifying!!
Click to expand...
Click to collapse
Generally no I flashed it on my EVO and didn't flash any thing else. You might want to go back and take another look I will as well but that generally not the case they come with the kernel.
To flash back to sense you don't have to do anything special. You don't have to nandroid back to sense or anything like that. The only thing you have to do is clear user data, cache, and dalvik cache then flash. You don't need to restore anything first. I saw your other post. Also I'm fairly positive that the ROM has the kernel but if you want to be safe download the kernel as well and just stick it on your storage card just in case.
Remember clearing user data will wipe all of your apps and data.
The kernel is a modified one just incase you have the brightness bug still I think.
When I flashed the new mikg v1.0 i know I still did but I flashed that kernel and it fixed it but I never flashed one of the new stock ROMs cause of the 1.0 sense on it.
Sent from my PC36100 using XDA App

Installing Roms

Hi i just wanted to know the easiest way to install a new rom on my defy. I have cm7 currently installed. Let me get this straight everytime you want to install a new rom you have to use rsd lite you cant just install zip from sd card through recovery? seems like a long process not really worth going through just to test a few roms? is this right or is there an easier way? thanks
If the base OS required is the same (meaning the new ROM works on the same kernel) then you can simply switch ROM's via Custom Recovery (CWM), but you have to wipe data and cache to avoid bootloops or other unexpected errors. If anything goes wrong and you mess up the bootmenu or the CWM module then you must flash the SBF again. I've successfully switched between CM7 and MIUI without flashing again the Froyo CEE.
Thanks that clears up a little bit, but how do i know if a rom uses the same kernel?
Sent from my motorola defy using Tapatalk
You welcome! Generally the ROM dev's mentions which base ROM should be used, if not you always can ask or read others comments, if any.
Ok cool thanks im with it now. Do u know which rom cm7 rc 1 is based on?
Sent from my MB525 using Tapatalk
If I'm not wrong the latest nightly builds are based on Froyo CEE or SEA. If you install RC1v2 or one nightly with BOOTXXX on it then it will upgrade also your kernel so you don't have to worry. See more details on CM7 topic.

[Q] Bananacakes kernel on InsertCoin ROM?

Hi all,
Has anyone tried the new bananacakes kernel 0.4 based on the official kernel source?
I tried installing it but my phone randomly resets every now and then. I've gone back to a Nandroid backup for now but I'd really like to use the new kernel.
Can someone who has successfully updated their InsertCoin ROM with the new kernel post some tips?
Thanks.
TBH, if you have problems with a kernel or any other file you flash or install, you're better off not using it anyway. Just "suffer" with what you've got.
You could always try a different ROM with a kernel (if compatible) or try a different kernel with the existing ROM.
Have you tried reflashing/installing the ROM and kernel from new after full wipe? Sometimes you can get issues with a file and undoing then re-flashing/installing can sort this most of the time (providing the file is stable). Are there any instability notes with the ROM/kernel? If so you may want to wait until stable versions are posted.
I updated the kernel without doing a full wipe, didn't want to lose all my settings.
Oh well, I'll do a full wipe and give it a try.
Thanks.

How/When to install Kernel?

At what point do I install a new Kernel?
I'm about to flash a new ROM and it is recommended to use a particular Kernel. At which point do I do this? Just before the first boot? After the first boot?
Thanks!
Kernel comes with the ROM you are flashing. So my suggestion is to try the one that came along with the ROM. If for some reason you are not satisfied with it may it be high battery drain, undervolting, overclocking, or missing governor options, that's when you look for another kernel.
There are 2 types of kernel for Desire, Sense based or AOSP based. You can't use one with the ROM based with the other.
You install new kernels the same way you flash a ROM. Kernel comes in a flashable zip. ONLY wipe dalvik and cache before flashing a new kernel. No need to wipe system at this point. Yeah flash it after the first boot, although flashing it right after the rom wouldn't hurt I believe.
Just flash it right after you flashed the ROM.
MatDrOiD said:
Just flash it right after you flashed the ROM.
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Okay thanks a bunch!
Cheers! That's what I was after! ;-)
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