Hi all; my nexus 4 has a battery problem. It doesn't lasts long. I couldn't find a solution other than flashing a kernel. To be honest, i don't want to flash a kernel, becaouse it's risky and my phone is a gift, also i want to get official upgrades. Do you have an idea to solve the problem without rooting and flashing a kernel? If flashing kernel is necessary, which kernel do you suggesting and whic way is te safest way to do this? I'm new in these topics so please explain flashing process of flashing a kernel basicly.
UtkuBirkan said:
Hi all; my nexus 4 has a battery problem. It doesn't lasts long. I couldn't find a solution other than flashing a kernel. To be honest, i don't want to flash a kernel, becaouse it's risky and my phone is a gift, also i want to get official upgrades. Do you have an idea to solve the problem without rooting and flashing a kernel? If flashing kernel is necessary, which kernel do you suggesting and whic way is te safest way to do this? I'm new in these topics so please explain flashing process of flashing a kernel basicly.
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franko... but before flashing kernel try betterbattery stats for find cause of drain
it says "no draining app(s) found". Also i'm using task killer to blocate apps.
UtkuBirkan said:
it says "no draining app(s) found". Also i'm using task killer to blocate apps.
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Click to collapse
Task killers are known to drain battery over be helpful. And by the way, your phone has 2GB Ram, it can handle apps behavior by itself.
I heard that paranoid rom increases battery life. So the best option is flashing Franco.kernel and paranoid ROM. Opinions, suggestions?
Sent from my Nexus 4 using xda app-developers app
You don't even need to flash paranoid android the kernel will work just fine.
Sent from my GT-N7100 using xda app-developers app
I get much better battery life on Harsh
Sent from my Nexus 4 using xda app-developers app
Well I get over a day of battery life on my n4 with matrix kernal and over 3 hours screen time
sent from my Kindle Fire in Equestria
Now when i took these I was at like 30% so I could of had about 4hr more with 1 hr extra screen time so I recommend the matrix kernel a lot
sent from my Nexus 4 in Equestria
Related
Are there any English speakers here who have rooted their SoftBank 001HT (Desire HD) in Japan?
Yes sir! Have had mine rooted and running custom kernel for a few weeks...but a heads up... as far as flashing custom roms I have flashed 5 separate ones and can never get more than 4 hours of battery life from them but when I flash back to stock rom and custom kernel it lasts for days!
Sent from my 001HT using XDA Premium App
Yes, i have mine rooted, s-off and unlocked (^^)d
Still running on default rom though, and I cant say I am happy with the battery life.
Sent from my 001HT using XDA App
unforseenenemy said:
Yes sir! Have had mine rooted and running custom kernel for a few weeks...but a heads up... as far as flashing custom roms I have flashed 5 separate ones and can never get more than 4 hours of battery life from them but when I flash back to stock rom and custom kernel it lasts for days!
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Glad its not just me then, was thinking there was something wrong with my phone due to the horrible battery life. Haven`t had any luck with getting decent battery life out of any rom/radio combo I have tried so far. What kernel are you using?
I'm using leedroid's latest and the radio from the newer Chinese rom....my reception improved a lot! I'm on Okinawa so don't get the best of reception to begin with....hopefully a chef will see these posts and make us softbank Japan people a custom rom based on our devices.
Sent from my 001HT using XDA Premium App
I tried CM7 the last couple of days (which is very nice) and I didn't have any battery drain issues. That was my first Android Custom rom here in Japan on the Desire HD. I'm now playing with RCMix HD (also very nice) and I'll see how the battery lasts on that. I've not changed or installed any radios at this point. Are you sure you are using the correct APN etc?
(It can cost you a lot of money if you are not and your data bill is charged differently.)
On a second note: I really love this Touch Input keyboard in RCMix HD, and I'm not sure if the audio was better in CM7. If you try them out - please give me your opinions.
I'm using leedroid's latest and the radio from the newer Chinese rom....my reception improved a lot! I'm on Okinawa so don't get the best of reception to begin with....hopefully a chef will see these posts and make us softbank Japan people a custom rom based on our devices.
please i have a drain battery problem with softbank 001HT after unlocksim.
please tell me rom version and radio version you used , please if u can give me a link for both of them i will be very happy.
thanks
I live in Ibaraki-ken. I have rooted and flashed mine with Spike CM7. I like the features in it and everything, but I too am having some battery drain issues. I'd say I'm getting about 7 hours out of it, and that is when it is mostly on standby. I'm trying to figure out ways to improve the battery life. On the stock rom though I think I was only getting about 10 hours. I was still charging it twice per day usually.
I have rooted my phone, but can not upload 2.3.3 now. I need to go back to the stock ROM but can not find it. Does any one have this?
There is a possible solution to all the battery problems. Charge the phone to 100%, boot into clockworkmod recovery, select advanced and then select "wipe battery stats".
dalpezzo said:
I have rooted my phone, but can not upload 2.3.3 now. I need to go back to the stock ROM but can not find it. Does any one have this?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1056549
Run the RUU from that thread, it will get you on the official softbank gingerbread rom.
NO, my 001ht not rooted.
any one can give me link how to root 001ht. i tried visionary r14 but no luck. when i try to run visionary, i got parse error: There is problem parsing the packed.
Sent from my SC-02B using XDA App
sooooo....i do need to downgrade in order to root is i have 2.3 gingerbread update??
DONE! rooted. end of this week, I'll try to upgrade to gingerbread. If anyone have advices for me before I upgrade, it really great for you to do that.
....I thought, I'm using correct English. Am I?
Sent from my SC-02B using XDA App
Hi there, just want to begin by saying how amazing this community is. I'm new to whole Android scene (just came over from iOS) but what a welcome it has been! I'm blown away by the amount of ways you can customize your Nexus 7, really puts the iPad to shame
So I've rooted my Nexus 7 and am now hoping to install a custom kernel...however I have quite a few questions pertaining to this procedure.
1) How do I install a custom kernel (ie Trinity)?
2) I'm looking to improve battery life without compromising performance, what kernel would you recommend for this?
3) Can I still get OTA if I have a custom kernel?
4) Can I revert back to stock kernel and if so, how do I do this?
Sorry to come across as a newb, I saw a lot of helpful threads on custom ROMs however I found the stuff on kernels a bit daunting...Hopefully this thread will be helpful for others as well
Thanks again everyone.
Sent from my Nexus 7 using xda app-developers app
1. just flash it in recovery, dont wipe a thing.
2. trinity
3. kernels dont have anything to do with ota. if its still enabled in your rom then yes.
4. either fastboot flash a stock boot.img or just reflash your rom without wiping anything.
5.
Worth noting that when a new rom is installed it installs its own kernel so you'll have to reflash your kernel.
I also recommend faux for good battery life. Both that and Trinity are good.
Sent from my LG-P999 using xda app-developers app
I posted this over at rootz earlier today and didn't get any bites so I figured I'd give it a shot over here.
I may be the only one in the world experiencing this problem. Looked around quite a bit and don't see any sign of others having this issue... Anyway, my N7 doesn't seem to like it when I flash a new kernel. I've tried several different kernels and when ever I flash one my display will not wake up once it times out or if I turn the display off manually. Once the screen goes dark i have to hold the power button down and reboot. I have zero issues with custom kernels as long as they are baked into the rom. I typically wipe cache and dalvic after flashing kernels...
Sent from my Galaxy Nexus using xda app-developers app
Little bump here... 130 views and not a peep... :-/
scram99 said:
Little bump here... 130 views and not a peep... :-/
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youre experiencing "sod", which is a fairly common problem with android 4.2.1 source code(not as common on the n7 as the gnex, but common enough). do you flash the kernel with the rom or do you flash the kernel separately?
This happens after switching out the kernel on any ROM I've used. Have not flashed a different kernel at the same time I flashed a ROM. I don't think that will make a difference. I can however flash kernels over my stock rooted backup... I don't know. Just weird and bums me out being limited like this...
scram99 said:
This happens after switching out the kernel on any ROM I've used. Have not flashed a different kernel at the same time I flashed a ROM. I don't think that will make a difference. I can however flash kernels over my stock rooted backup... I don't know. Just weird and bums me out being limited like this...
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I would just factory reset and start from scratch. Do you have any settings set like UV??
Sent from my Nexus 7 using xda premium
I have tried flashing back to stock, relocking and starting from scratch. I do not undervolt...
A few good folks in the android community had experienced similar happenings and suggested lean kernel... Flashed it earlier this evening and working like a charm.
I always used Xylon and always got good days use. Then ill eventually flash a new build cause its got new features and i can never get the battery life back the same how it was. I always perform multiple factory resets and wipes before clean flashing new builds. I use the same Franco kernels, etc. When i had my phone perfect it would drain like a percent an hour. Now its like 2-3.5% an hour and i dont know why. BetterBatteryStats checks out fine. Nothing is keepin the phone awake, the idle drain is just high for some reason. Is there a better process to start fresh? Should i flash everything? Flash stock rom, and bootloader and radio? Then flash xylon? would that make any difference?
Worked for me! I wouldn't definitely try it, I know it sucks, what's to lose
Sent from my Nexus 4 using xda premium
Ill definately give it a try. Will be like the 5th time flashing different roms trying to figure out why this is acting weird this month. Do you happen to have the thread to the latest radio \ bootloader flash?
I found the latest stock rom i believe http://forum.xda-developers.com/showthread.php?t=2251958&highlight=stock
emerica243 said:
Ill definately give it a try. Will be like the 5th time flashing different roms trying to figure out why this is acting weird this month. Do you happen to have the thread to the latest radio \ bootloader flash?
I found the latest stock rom i believe http://forum.xda-developers.com/showthread.php?t=2251958&highlight=stock
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If you want better battery life you should probably flash the stock image through fastboot; https://developers.google.com/android/nexus/images
Sent from my Nexus 4
Tom540 said:
If you want better battery life you should probably flash the stock image through fastboot; https://developers.google.com/android/nexus/images
Sent from my Nexus 4
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Big difference compared to just factory resetting and flashing the stock rom?
emerica243 said:
Big difference compared to just factory resetting and flashing the stock rom?
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Click to collapse
Well simply flashing the stock ROM is unlikely to do anything, its just like flashing Xylon or whatever, anyone who had an improvement had it from flashing the img through fastboot. You only have to do once though, if there is going to be any effect
Sent from my Nexus 4
Hello everyone! Could anyone help me out and share a stock d802 int 4.4.2 kernel? (flashable .zip maybe?)
Been using this phone for 5 months already and yesterday I decided to try out autorec recovery and dorimanx kernel. Regret doing that. Performance seems to be lower, the same goes with battery life.
Is there even a way of getting back to stock without full wipe?
Sorry if I haven't done enough searching, but I'm on phone and searching this way is a pain in the ...
Sent from my LG-D802 using XDA Premium 4 mobile app
archzz said:
Hello everyone! Could anyone help me out and share a stock d802 int 4.4.2 kernel? (flashable .zip maybe?)
Been using this phone for 5 months already and yesterday I decided to try out autorec recovery and dorimanx kernel. Regret doing that. Performance seems to be lower, the same goes with battery life.
Is there even a way of getting back to stock without full wipe?
Sorry if I haven't done enough searching, but I'm on phone and searching this way is a pain in the ...
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I am not completely sure, but doesn't Autorec install the stock kernel (patched only for loki etc).
Thread title asks just for the Stock Kernel and since you have already a custom recovery , you would need a patched kernel. Doesnt have to be Dorimax.
Or really completely stock with everything and unroot?
Oh, I'm sorry. I meant I want things to go back the way they were - stock 4.4.2, stock kernel, no custom recovery. Is it even possible without a complete reinstall and wipe?
PAGOT said:
I am not completely sure, but doesn't Autorec install the stock kernel (patched only for loki etc).
Thread title asks just for the Stock Kernel and since you have already a custom recovery , you would need a patched kernel. Doesnt have to be Dorimax.
Or really completely stock with everything and unroot?
Click to expand...
Click to collapse
archzz said:
Hello everyone! Could anyone help me out and share a stock d802 int 4.4.2 kernel? (flashable .zip maybe?)
Been using this phone for 5 months already and yesterday I decided to try out autorec recovery and dorimanx kernel. Regret doing that. Performance seems to be lower, the same goes with battery life.
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
when installing a new kernel you should never judge by one day, you should always allow 2-3 days for everything to fall in place, saying the above is like installing a new rom and if in few hours its draining fast you blame the rom but in reality you didn't give things a chance to fall in place and run as they are supposed to
archzz said:
Oh, I'm sorry. I meant I want things to go back the way they were - stock 4.4.2, stock kernel, no custom recovery. Is it even possible without a complete reinstall and wipe?
Click to expand...
Click to collapse
only way to go back to complete stock without consequences is by using download mode
XxZombiePikachu said:
when installing a new kernel you should never judge by one day, you should always allow 2-3 days for everything to fall in place, saying the above is like installing a new rom and if in few hours its draining fast you blame the rom but in reality you didn't give things a chance to fall in place and run as they are supposed to
only way to go back to complete stock without consequences is by using download mode
Click to expand...
Click to collapse
So you mean to say It's ok that it takes like 4 sec to show mobile data settings (long press on mobile data icon)? That's an example. And also I don't know much about benchmarks but the I/O score in quadrant went down to 5200ish.
archzz said:
So you mean to say It's ok that it takes like 4 sec to show mobile data settings (long press on mobile data icon)? That's an example. And also I don't know much about benchmarks but the I/O score in quadrant went down to 5200ish.
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Click to collapse
Benchmarks don't matter and it doesn't take 4 seconds for me.
Sent from my LG-D802
Trixanity said:
Benchmarks don't matter and it doesn't take 4 seconds for me.
Sent from my LG-D802
Click to expand...
Click to collapse
Thanks for your help.
It does take for me, it wasn't like that with stock so I want to go back to stock.
Im not blaming the kernel dorimanx made, maybe I just need a wipe or something, but I can't afford to do a full wipe.
archzz said:
Thanks for your help.
It does take for me, it wasn't like that with stock so I want to go back to stock.
Im not blaming the kernel dorimanx made, maybe I just need a wipe or something, but I can't afford to do a full wipe.
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Click to collapse
well naturally for flashing a kernel you wipe dalvik/cache and I mentioned earlier if you want to go back to stock you would need to use back to stock guide which will erase everything on your phone so backup anything important
So I guess there is no way of restoring kernel and recovery without wipe?
Sent from my LG-D802 using XDA Premium 4 mobile app
archzz said:
So I guess there is no way of restoring kernel and recovery without wipe?
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Well there is fastboot mode but that is dangerous and shouldn't be done on purpose
Sent from LG-G2 D800 on AEONFLEX 4.4.2
archzz said:
Hello everyone! Could anyone help me out and share a stock d802 int 4.4.2 kernel? (flashable .zip maybe?)
Been using this phone for 5 months already and yesterday I decided to try out autorec recovery and dorimanx kernel. Regret doing that. Performance seems to be lower, the same goes with battery life.
Is there even a way of getting back to stock without full wipe?
Sorry if I haven't done enough searching, but I'm on phone and searching this way is a pain in the ...
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I had the same issue and fixed by flashing this: http://forum.xda-developers.com/showpost.php?p=52182215&postcount=449