Fast Charge Kernel for Lollipop ROMs? - One (M7) Q&A, Help & Troubleshooting

Is there any chance of seeing fast charge kernel support for the m7?
I'm running CM12 on my One and was hoping to find a fast charge kernel that supports it. Or is there any way I can modify my existing kernel?

CALI1198 said:
Is there any chance of seeing fast charge kernel support for the m7?
I'm running CM12 on my One and was hoping to find a fast charge kernel that supports it. Or is there any way I can modify my existing kernel?
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ElementalX

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[KERNEL][I9100G][2.3.5]MyGKernel - CWM5, Root, CIFS

Hi, this is my first compiled kernel for Samsung Galaxy S II I9100G. Compiled from Samsung's latest source code. Compatible with DZKI1 firmware.
No mods or optimizations yet - I just added CWM-based Recovery v5.0.2.6 I pulled from another kernel.
Credits:
nunon4 - for pointing out link to rooted kernel here - http://forum.xda-developers.com/showpost.php?p=18744675&postcount=85 - this was where I pulled the initramfs with recovery from
Unknown dev who created the above kernel
CLockworkmod developers
Disclaimer:
I'm not responsible for any damage to your phone, other properties or persons due to you using this kernel.
Everything seems to work for me, but I haven't fully tested it yet - please tell me if you have any problems.
Instructions:
1. Downloaded from the attached link.
2. Flash with Odin.
Changelog:
v0
Initial release - CWM5, Root
v1.1
added CIFS support - mount Windows shares using CifsManager from Market
removed debugging information from modules to reduce file sizes
v1.1.1
Bugfix - phone keeps booting into recovery in v1.1
You are a MAN!! Great job!!! looking forward for optimization.
Since it have CWM5, The custom ROM will follow now.
aidfarh said:
Hi, this is my first compiled kernel for Samsung Galaxy S II I9100G. Compiled from Samsung's latest source code. Compatible with DZKI1 firmware.
No mods or optimizations yet - I just added CWM-based Recovery v5.0.2.6 I pulled from another kernel.
Credits:
nunon4 - for pointing out link to rooted kernel here - http://forum.xda-developers.com/showpost.php?p=18744675&postcount=85 - this was where I pulled the initramfs with recovery from
Unknown dev who created the above kernel
CLockworkmod developers
Disclaimer:
I'm not responsible for any damage to your phone, other properties or persons due to you using this kernel.
Everything seems to work for me, but I haven't fully tested it yet - please tell me if you have any problems.
Instructions:
1. Downloaded from the attached link.
2. Flash with Odin.
Click to expand...
Click to collapse
thank for the Kernel... can this kernel overclock?
serge327 said:
thank for the Kernel... can this kernel overclock?
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Click to collapse
No, not yet.
Sent from my GT-I9100G using XDA App
Any chance of tweaking the charge rate in this kernel to allow the use of higher output chargers like the ipad charger that outputs 3 times the current of the stock one? The stock charge rate is locked to 650ma which is close to the output of the stock charger that came with the phone, regardless of which ac charger you use. Don't even mention the charge rate when plugged into a usb port.
my biggest gripe so far with this otherwise excellent phone.
Jacking up the limit to around 3000ma on both ac and usb, and letting the phone draw the maximum current that the adapter can supply would really speed things up.
bcky84 said:
Any chance of tweaking the charge rate in this kernel to allow the use of higher output chargers like the ipad charger that outputs 3 times the current of the stock one? The stock charge rate is locked to 650ma which is close to the output of the stock charger that came with the phone, regardless of which ac charger you use. Don't even mention the charge rate when plugged into a usb port.
my biggest gripe so far with this otherwise excellent phone.
Jacking up the limit to around 3000ma on both ac and usb, and letting the phone draw the maximum current that the adapter can supply would really speed things up.
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Do you have an idea on how to go about doing that? I'm actually a novice in this modding business, so I can't really do any original mods, but I can try to incorporate mods that others have done, providing that instructions are provided.
Having said that, I'm actually reluctant to attempt mods that tamper with voltage or current settings like what you're proposing. Maybe there's a good reason Samsung has limited the charging current. I don't want to fry my phone.
For now, I'm looking at mods that improve functionality, like BLN or CIFS. Maybe some overclocking of the CPU/GPU at later stage once I have more understanding of the platform.
Already use it..awesome!! But after that I see a yellow triangle at boot...why?
lockmunk said:
Already use it..awesome!! But after that I see a yellow triangle at boot...why?
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That's normal when you use custom kernels. It would disappear if you reflash with a stock kernel.
root your phone first, then install kernel flasher, then flash original kernel, and finally install this kernel via kernel flasher and you will won't see the triangle anymore.
jlieu said:
root your phone first, then install kernel flasher, then flash original kernel, and finally install this kernel via kernel flasher and you will won't see the triangle anymore.
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i am new to android..can u teach me step by step?i dont understand this "install kernel flasher, then flash original kernel, and finally install this kernel via kernel flasher"
jlieu said:
root your phone first, then install kernel flasher, then flash original kernel, and finally install this kernel via kernel flasher and you will won't see the triangle anymore.
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Click to collapse
Kernel flasher hmm. Can i use app like Chainfire CWM app or Hellcat App the flash the zimage?
antt00 said:
Kernel flasher hmm. Can i use app like Chainfire CWM app or Hellcat App the flash the zimage?
Click to expand...
Click to collapse
I tried both those apps on my device. They didn't work.
So, just choose as PDA and click start?
i just installing miui rom.. but somehow.. my phone brick..
but is ok since i backup my current rom..
can anybody test flashing miui rom with this kernel?
So far so good. I'll keep monitoring for any bugs.
Good job for the Kernel too
mdrizal said:
i just installing miui rom.. but somehow.. my phone brick..
but is ok since i backup my current rom..
can anybody test flashing miui rom with this kernel?
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Are you using G version phone? Also does Miui or any other custom rom for i9100 even work on i9100G?
thanks! great job as startings to the i9100G
G
antt00 said:
Are you using G version phone? Also does Miui or any other custom rom for i9100 even work on i9100G?
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i don't think they are the same, so must wait longer so some dev to start with the G variant
can anybody test flashing miui rom with this kernel?
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Click to collapse
Just did, and it works.
This kernel is compatible with the latest MIUI (1.14.0), at least for me
I added CIFS support. Now you can use CifsManager or similar app to mount Windows shares. See first post.

Custom kernel and maintaining slow charge rate?

Hi all,
Is the slow-to-charge behaviour of the HTC One hardware based or controlled by the kernel? I'm running the Bulletproof kernel but I want to ensure that the charge characteristics are the same as stock (for battery longevity).
Assuming the use of the stock OEM wall-charger, and USB fastcharge left off in the kernel, should the charge rate be the same between stock and Bulletproof?
Thanks in advance.
HighOctaneTT said:
Hi all,
Is the slow-to-charge behaviour of the HTC One hardware based or controlled by the kernel? I'm running the Bulletproof kernel but I want to ensure that the charge characteristics are the same as stock (for battery longevity).
Assuming the use of the stock OEM wall-charger, and USB fastcharge left off in the kernel, should the charge rate be the same between stock and Bulletproof?
Thanks in advance.
Click to expand...
Click to collapse
Yes it will be the same if you left USB fastcharge off in the kernel installer, btw I recommend you try faux's kernel and you can download the faux kernel enhancement app from the play store and you can tinker with the settings using the app anytime you want instead of going through the installer and it has really nice settings but anyway I digress
Yes it will be the same if you left USB fastcharge off in the kernel installer, btw I recommend you try faux's kernel and you can download the faux kernel enhancement app from the play store and you can tinker with the settings using the app anytime you want instead of going through the installer and it has really nice settings but anyway I digress
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Thanks very much for replying. In kernel terms all I really wanted was the stock kernel with the ability to write /system (which the stock kernel disallows). Bulletproof seemed to be the closest to stock I could find, but I'll checkout faux as you suggest.
Thanks again.
The phone is very slow to charge even on stock kernel, much slower than any of the other current flagships
ordisaio the
Matt said:
The phone is very slow to charge even on stock kernel, much slower than any of the other current flagships
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Yup, which is what I'm trying to preserve while using custom kernels. I'm trying to work out if the slow-charging is imposed by the hardware or kernel.
Thanks.
Ah I see. I think it's the hardware as all kernels have the same charge rate. You don't need to worry about battery longevity unless you plan on keeping the phone for 3 years +
Matt said:
Ah I see. I think it's the hardware as all kernels have the same charge rate. You don't need to worry about battery longevity unless you plan on keeping the phone for 3 years +
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Cool, that seems to be the prevailing theory, I will go with that
Thanks again.

Stock ROM vs Custom ROM

With all the hype about the official sense 6 ota rolling out I've been considering reverting back to stock w/ root. The reason is I dont use many of the features that custom roms offer, I like how sense 6 looks and prefer it to be stock (no init.d support etc).
I dont care about features or performance, my only concern is battery life, so how does the stock rom compare to custom roms on the HTC One in terms of battery life?
stock
Bhavpreet said:
With all the hype about the official sense 6 ota rolling out I've been considering reverting back to stock w/ root. The reason is I dont use many of the features that custom roms offer, I like how sense 6 looks and prefer it to be stock (no init.d support etc).
I dont care about features or performance, my only concern is battery life, so how does the stock rom compare to custom roms on the HTC One in terms of battery life?
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Click to collapse
I would say stick to stock as much as possible because custom roms have bugs and u have to wait till devs finds any solutions :angel:
slogger001 said:
I would say stick to stock as much as possible because custom roms have bugs and u have to wait till devs finds any solutions :angel:
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I find that quite interesting
you are on xda-developers but recommend staying stock... somewhat of a controversy there, no?
and stock doesn't have bugs?
I have to agree with slogger. I tried most of custom ROMs on xda and none of them can match my stock 4.4.2 in combination with Elemental kernel. I have perfectly smooth, fast phone and my battery lasts around 50 hours off charge with moderate use with CPU OCed to 2.05 GHz
slogger001 said:
I would say stick to stock as much as possible because custom roms have bugs and u have to wait till devs finds any solutions :angel:
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donkeykong1 said:
I have to agree with slogger. I tried most of custom ROMs on xda and none of them can match my stock 4.4.2 in combination with Elemental kernel. I have perfectly smooth, fast phone and my battery lasts around 50 hours off charge with moderate use with CPU OCed to 2.05 GHz
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Click to collapse
Alright then I guess im going to run an RUU later. One thing though, how do you get a custom kernel to flash ontop of the stock rom?
Bhavpreet said:
Alright then I guess im going to run an RUU later. One thing though, how do you get a custom kernel to flash ontop of the stock rom?
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Click to collapse
The same way you flash a kernel on a custom rom. Flash it from custom recovery. Make sure that the kernel you want to use is Sense compatible
Sent from my HTC One using XDA Free mobile app
alray said:
The same way you flash a kernel on a custom rom. Flash it from custom recovery. Make sure that the kernel you want to use is Sense compatible
Sent from my HTC One using XDA Free mobile app
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I read that that wont work, since the stock rom has a secure kernel. You would need an unsecure kernel in order to be able to write another on over it.
But ill give it a shot regardless.
Bhavpreet said:
Alright then I guess im going to run an RUU later. One thing though, how do you get a custom kernel to flash ontop of the stock rom?
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Click to collapse
Just flash it via custom recovery like you wuld flash a ROM
donkeykong1 said:
Just flash it via custom recovery like you wuld flash a ROM
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but dont you need an unsecure ramdisk for the kernel to flash successfully?
Bhavpreet said:
but dont you need an unsecure ramdisk for the kernel to flash successfully?
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I unlocked my bootloader and flashed Elemental right away, so I guess not
No you don't. The secure kernal affects for example deleting system apps or any bloat software that you don't want. It will be back after a reboot. You can flash anything in recovery no probs
Sent from my HTC One using XDA Premium 4 mobile app

[Q] Custom Kernal

i have a few questions i wanted to ask , i would like to flash my one to the custom kernal elementalX can anyone tell me if after flashing this kernal does the battery drain off fast or it has a normal battery drainage. will my one become slow after flashing this kernal cause i want to use this kernal to make hike up the processor speed and finally is there any risks while flashing the kernal ????
Hi there,
Please tell me what exactly device do you have. M7 or M8?
Thanks
HTC One M7
R_a_z_v_a_n said:
Hi there,
Please tell me what exactly device do you have. M7 or M8?
Thanks
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Click to collapse
HTC One M7
Understand.
Please stand by until mods will move this thread to the device specific forum for One M7.
Stand by
I highly recommend ElementalX. IMHO it's the best kernel available for the M7UL (Sense/GPE). Aside from all the extra features I'm getting better battery life and faster performance by undervolting and overclocking my CPU/GPU. The developer flar2 also has an app available for a small fee that is well worth the price so that you can tune all of the kernel parameters. If you are running a Sense or GPE based ROM, give it a shot and see for yourself.
Sent from my HTC One using Tapatalk
like said above, its a great kernel. Battery life is good but you can expect it to drain a little bit faster depending on what settings you'll use. Anyway try it and if you don't like, you can always flash your stock kernel back.
synt3k said:
I highly recommend ElementalX. IMHO it's the best kernel available for the M7UL (Sense/GPE). Aside from all the extra features I'm getting better battery life and faster performance by undervolting and overclocking my CPU/GPU. The developer flar2 also has an app available for a small fee that is well worth the price so that you can tune all of the kernel parameters. If you are running a Sense or GPE based ROM, give it a shot and see for yourself.
Sent from my HTC One using Tapatalk
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Click to collapse
so there is no risk of bricking my mobile or somthing like that cause previously also on some phones i flashed roms and nothing really happened and i really want to flash this kernal so i think if it is no risk then i should go ahead and flash it
If you are really worried, then just take your time, read the OP for ElementalX and make sure you understand what you are doing. I don't understand how you could flash a ROM and have nothing happen.. If you mean that it worked fine, then yes, you should have no problem with this kernel, it is rock solid.
Kangaroo Kernel is also another good one. I suggest trying elementalx and then kangaroo if you fell like trying something different. The kangaroo script to modify the settings can be a bit "advanced" for some.
Sent from my HTC6500LVWBLU using XDA Free mobile app

Battery idle mode: Is it possible?

Is there any kernel that supports battery idle mode so far? If not, is it possible for a developer to enable or make it compatible by building a custom kernel?
Thanks in advance!
David_#27 said:
Is there any kernel that supports battery idle mode so far? If not, is it possible for a developer to enable or make it compatible by building a custom kernel?
Thanks in advance!
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There are a few kernels in the ROMs and kernels section, go and look at the posts and see what they have to offer.
Robbo.5000 said:
There are a few kernels in the ROMs and kernels section, go and look at the posts and see what they have to offer.
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Unfortunately there is no kernel that supports it... Is it possible to build one that supports it?

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