Database Info

About changin kernel

What is the step if i gonna changin my kernel??
can i going back to my old kernel,if i dont like the new one??
if i update new kernel,will all my apps/data will lost??

Wipe cache and dalvic cache then flash kernel
Yes
No.
I suggest you do alot of reading about the ins/outs of flashing roms and kernels before you attempt anything
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Get a kernel for the nexus s such as netarchy, trinity or matrix. Take a back up of your existing ROM, flash the new kernel from recovery and reboot. This will not delete all your apps. I'd you don't like it just restore the backup you took.
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Rem3Dy said:
Wipe cache and dalvic cache then flash kernel
Yes
No.
I suggest you do alot of reading about the ins/outs of flashing roms and kernels before you attempt anything
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
Wipe cache and dalvic cache then flash kernel
do wipe cache anf dalvic cache using rom manager??
yes...i did a lot of reading before i root and flashing CM7 on my nexus S..
i thought kernel do not give a lot effect on my hp..
---------- Post added at 12:23 PM ---------- Previous post was at 12:16 PM ----------
mvjh01 said:
Get a kernel for the nexus s such as netarchy, trinity or matrix. Take a back up of your existing ROM, flash the new kernel from recovery and reboot. This will not delete all your apps. I'd you don't like it just restore the backup you took.
Sent from my Google Nexus S using XDA Premium App
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Click to collapse
how i gonna backup and restore my kernel??using rom manager??

al_madd said:
Wipe cache and dalvic cache then flash kernel
do wipe cache anf dalvic cache using rom manager??
yes...i did a lot of reading before i root and flashing CM7 on my nexus S..
i thought kernel do not give a lot effect on my hp..
---------- Post added at 12:23 PM ---------- Previous post was at 12:16 PM ----------
how i gonna backup and restore my kernel??using rom manager??
Click to expand...
Click to collapse
Go in recovery and wipe cache and dalvik cache, and just flash new kernel. You will not lose anything. And you can flash another one if you don't like that one. I recommend not to use ROM manager to flash anything. Flash kernels and ROMs from Recovery, and Radios via fastboot...
Not sure about restoring kernels from backup...never done that. If you know which one is in your ROM you can download it and manually flash it back, if you don't like the new one ...
I would recommend one of Trinity's kernels TUV10 or TUV11 ...

Tenhi said:
Flash kernels and ROMs from Recovery, and Radios via fastboot...
Click to expand...
Click to collapse
radios in fast boot???
Ive always done my radios in CWM recov. Is there a benefit to doing it in fast boot?

tevil said:
radios in fast boot???
Ive always done my radios in CWM recov. Is there a benefit to doing it in fast boot?
Click to expand...
Click to collapse
You're just minimizing potential damage, and in fastboot there's less possibility for something to go wrong. Radios are more fragile. I was using that method with my HTC Desire. Don't know, maybe things are different with nexus, but i'm still using that method .
Here's one quotation from oxygen forum:
forum.oxygen.im said:
When you flash a radio over a recovery, the recovery extracts the downloaded radio.zip into /cache partition. So the radio.img is stored there temporary. For this operation the /cache partition needs as many as 25 mb. If it hasn't, they might occur big problems.
Furthermore, it's better to do it, because there isn't any software (e.g. recovery) which could go wrong.
Click to expand...
Click to collapse

Tenhi said:
I recommend not to use ROM manager to flash anything. Flash kernels and ROMs from Recovery, and Radios via fastboot...
I would recommend one of Trinity's kernels TUV10 or TUV11 ...
Click to expand...
Click to collapse
is there any disadvantages if using ROM manager when flash ROMs??
if I gonna flash ROM using recovery mode?do i need to wipe cache and wipe dalvik??
I just flash Trinity kernel TUV..just a little bit disspointing because there is no smartass in available gavernors...
i chosed conservative to save my battery..
using setcpu I change max 800mHz and min 200mHz to save battery..is that ok??

al_madd said:
is there any disadvantages if using ROM manager when flash ROMs??
if I gonna flash ROM using recovery mode?do i need to wipe cache and wipe dalvik??
I just flash Trinity kernel TUV..just a little bit disspointing because there is no smartass in available gavernors...
i chosed conservative to save my battery..
using setcpu I change max 800mHz and min 200mHz to save battery..is that ok??
Click to expand...
Click to collapse
Smartass sucks on the nexus s from my experience. If you flash roms in recovery you wipe data, cache and dalvic cache if flashing a different rom. If its the same rom, just wipe cache and dalvic cache.
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al_madd said:
is there any disadvantages if using ROM manager when flash ROMs??
if I gonna flash ROM using recovery mode?do i need to wipe cache and wipe dalvik??
I just flash Trinity kernel TUV..just a little bit disspointing because there is no smartass in available gavernors...
i chosed conservative to save my battery..
using setcpu I change max 800mHz and min 200mHz to save battery..is that ok??
Click to expand...
Click to collapse
I don't have great experience with ROM manager, but maybe that was just me . I just prefer manual CWM recovery use, and fastboot/adb when needed .
If you're installing new ROM, yes, you should wipe all caches and wipe data/factory reset.
You don't need to change anything with Trinity TUV kernels, they are great with performance and power saving ...
Don't use SetCPU or similar app, just try it as it is...

Tenhi said:
You don't need to change anything with Trinity TUV kernels, they are great with performance and power saving ...
Don't use SetCPU or similar app, just try it as it is...
Click to expand...
Click to collapse
Is it ok i use juice defender??
how long your battery last??
---------- Post added at 04:27 PM ---------- Previous post was at 04:24 PM ----------
Rem3Dy said:
Smartass sucks on the nexus s from my experience. If you flash roms in recovery you wipe data, cache and dalvic cache if flashing a different rom. If its the same rom, just wipe cache and dalvic cache.
Sent from my Nexus S 4G using xda premium
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Click to collapse
what do choose for you governor??

i tried juice defender on my nexus s and it caused a few problems.
My buddy with a thunderbolt likes it.
If your looking for battery stamina look at two things. (in my experience)
Apps left running. Slacker was a problem if not closed correctly. To many running ETC.
second and even more important
SIGNAL STRENGTH
At work my signal sucks and my battery will drain to almost nothing just sitting on my desk if not charging. When i bypass data and connect to my jobs wifi and turn off wifi sleep(just learned about wifi sleep) then my battery life is beyond amazing. I have att and dont know who you have but if its ATT your prob screwed cuase their service SUUUUUUUUUUUUUUUUUUUUCKS.
try turning off your data in a bad service area you might be in for extended times and see if that helps.
also in my opinion the best rom for battery is just stock. you can use root apps to get almost all the same effects as most roms but stock has the best stability and life. Next would prob be SuperOSR to me. Another good tip i have started to do is whenever i change the rom it seems i have to drain out the batt fully then wipe batt stats and charge again. could be in my head but it helps alot.

Juice defended is worthless. Take the time to read the rom, kernel, and root guide in the development section...... you can learn alot from reading.
Sent from my Nexus S 4G using xda premium

Rem3Dy said:
Juice defended is worthless. Take the time to read the rom, kernel, and root guide in the development section...... you can learn alot from reading.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
I get when people say to read the tuts to people but even then its good to ask a few questions. Sometimes its difficult to jump into reading a tutorial and the terminology used and asking a few questions can really give you a jump start.
I used the tutorial and bricked my phone for 2 days before i figured out what i did wrong. If i asked a few questions first i could have prob avoided it. if people dont ask questions what the point of a Q&A forum?

tevil said:
I get when people say to read the tuts to people but even then its good to ask a few questions. Sometimes its difficult to jump into reading a tutorial and the terminology used and asking a few questions can really give you a jump start.
I used the tutorial and bricked my phone for 2 days before i figured out what i did wrong. If i asked a few questions first i could have prob avoided it. if people dont ask questions what the point of a Q&A forum?
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Its fine to ask questions. He has asked alot and some good ones at that. It seems he is looking for help throughout the entire process and that is why I suggested the guides as they "guide" you.
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Rem3Dy said:
Juice defended is worthless. Take the time to read the rom, kernel, and root guide in the development section...... you can learn alot from reading.
Sent from my Nexus S 4G using xda premium
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Click to collapse
thanx..
i asked in this section because from the development section,everybody claims their ROM/kernel the best..
just ask for opinion..

al_madd said:
thanx..
i asked in this section because from the development section,everybody claims their ROM/kernel the best..
just ask for opinion..
Click to expand...
Click to collapse
Then you should try some of those which could suit your needs. That's what I did, and I found what I needed...

What will happen if I wipe battery stat before changing kernel???

You need to charge phone to 100% then let it discharge to 5 percent to calibrate.
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Rem3Dy said:
You need to charge phone to 100% then let it discharge to 5 percent to calibrate.
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I never reached 100%..how i gonna to calibrate it?
My battery drained so fast
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Going on holiday, need a ROM with good battery life

I am currently on CM9A13 by Dhiru. I love ICS for al its features. But the battery life is very poor. Even at night the phone discharges 30% or so. I am unable to understand from the BetterBatteryStats and I am attaching some screens if anyone can help me understand the reason for battery drain.
I have come from GB to ICs without factory reset and always just wipe cache/dalvik and format /dbdata. Is this one of the reason for poor battery life? Can I get a better battery life if I flash CM9 fresh. What should be the procedure to follow in that case? Which base and then CM9?
I am going on a holiday next month and will be using maps. So if the battery drain is so severe I cannot use it at all as I cannot charge when on the move.
Which ROM would you recommend for better battery life?

Going on a holiday...Hmmmm
i recommend u flashing the stock DDLF2 and then The Frankenstien^Mod !!
i am currently on this rom..and trust me it wont dissappoint u !!

Ics does drain battery at this stage of development.go back to stock gb
Ddlf2 bam 14 fix kernel and use set
cpu and create profiles according to need.covert to ext4 for better speed at lower frequencies.use v6 supercharger battery fix
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simratcs said:
Going on a holiday...Hmmmm
i recommend u flashing the stock DDLF2 and then The Frankenstien^Mod !!
i am currently on this rom..and trust me it wont dissappoint u !!
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Click to collapse
loneagl said:
Ics does drain battery at this stage of development.go back to stock gb
Ddlf2 bam 14 fix kernel and use set
cpu and create profiles according to need.covert to ext4 for better speed at lower frequencies.use v6 supercharger battery fix
Sent from my GT-I9003 using xda app-developers app
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Click to collapse
Hey thanks for the replies. Haven't flashed from scratch in a long time.
What is the exact procedure? Which CF-Root to use?
Can I use Bam kernel with Frankenstein Mod?
Will Frankstein Mod auto convert to EXT or I have to do this manually? How?
Where is v6 supercharger battery fix? Does this not work with ICS?

As both members above said, use LF2 mod by Frankenstain with BAM kernelv15 (see post 1072 on his thread). It's pretty good for battery life.
But, I'm not sure it will help you when you use mobile internet with maps for navigation. If you are traveling by car, better keep a car charger handy.
Also, turn of all kind of sync. If you got Titanium backup pro, just freeze all appz that you think might use up battery juice, including live wallpapers/etc.
All the best.
---------- Post added at 12:22 PM ---------- Previous post was at 12:19 PM ----------
If you're on cm9, you can just go to recovery, do a full wipe, and flash lf2 rom and then after reboot .. let it run for a while .. then reboot again. Then use mobile odin or odin to flash BAM kernel v15.

Use titanium app to freeze ur all Drm.apk and syncmldm.apk
No effect for mms and received calling..

RonnYap said:
Use titanium app to freeze ur all Drm.apk and syncmldm.apk
No effect for mms and received calling..
Click to expand...
Click to collapse
Is this for ICS or GB?
I had a Drmprovider apk in ICS so I have frozen that. I don't have any syncmldm.apk though in ICS

The best solution is changing the phone at all... buy another one and save your time
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I suggest cm10 with supercharger 6 ..its incredible
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Stock gb
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bscraze said:
Stock gb
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Seen u posting after long time.....
Sorry for off-topic.

androman1507 said:
Seen u posting after long time.....
Sorry for off-topic.
Click to expand...
Click to collapse
Really busy these days haha. Still will b . Sorry for OT
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As for my tries, I've got best battery life on xwlf2 with bam's v15rc4 kernel. Highly recommended.
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[Q] wipe battery stats after two months

I want to wipe battery stats in clockwork mod on lg p500 on cm10 4.1.2 unofficial can I do it safely even though I flashed the ROM back in march? does doing this delete any data? I want to wipe battery stats for better battery life. thank you

That wipe battery stats is a placebo in the recovery
If you want to calibrate your battery search battery calibration app on play store
Either ways none of your data will be lost or deleted
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Absolutely correct! Search the Play Store...top calibration app is great! Follow instructions exactly and read the review...there are some great tips! I had no issues whatsoever! Replaced a bad battery and used this to calibrate the new one...WORKS GREAT!
Sent from my SCH-S960L using xda app-developers app

[Q] HTC Explorer battery problem

Hi guys, i have a HTC Explorer and rooted two years back and installed jaggy rom. but suddenly while using the jaggyrom, someday my battery was not charging more than 60%. how much time i may charge my mobile even a complete day still it charges only upto 60%. today i got a new battery for this phone and now it cannot charge more than 40%. Can someone help me with this.

If you are using 2.3.5 version of jaggy's it's not a bad idea to try 'wipe battery stats' option in recovery,there was also ' battery calibration' app in play store. If you are on higher version of the rom possibility of success is little,but anyway it's worth a try

my rom was
shortyoko said:
If you are using 2.3.5 version of jaggy's it's not a bad idea to try 'wipe battery stats' option in recovery,there was also ' battery calibration' app in play store. If you are on higher version of the rom possibility of success is little,but anyway it's worth a try
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at present i am using jaggy rom v5. yes i have cleared my battery stats. i can switch back to other rom if needed, please recommend me a rom that my phone should get back

someone please solve my problem

The only thing that I can recommend is to choose some cyanogen based rom(which are almost all from original development), and make sure that you are making a squicky clean install, meaning you wipe everything, even make it twice then flash it.
I have no more ideas.

hari2m said:
Hi guys, i have a HTC Explorer and rooted two years back and installed jaggy rom. but suddenly while using the jaggyrom, someday my battery was not charging more than 60%. how much time i may charge my mobile even a complete day still it charges only upto 60%. today i got a new battery for this phone and now it cannot charge more than 40%. Can someone help me with this.
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Buddy let your battery f drain till 1/2%then go to recovery „clear battery starts .. charge your phone for an hour v or two in recovery mode itself then with it on
Sent from my HTC Explorer A310e using Tapatalk 2

Arjun12357 said:
Buddy let your battery f drain till 1/2%then go to recovery „clear battery starts .. charge your phone for an hour v or two in recovery mode itself then with it on
Sent from my HTC Explorer A310e using Tapatalk 2
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Thank you sir, i will let you know when i do that... thank you so much for your reply. i havn't seen my mobile at 100% from more than a year

hari2m said:
Thank you sir, i will let you know when i do that... thank you so much for your reply. i havn't seen my mobile at 100% from more than a year
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Happy to help.. Let's hope it work's
Sent from my HTC Explorer A310e using Tapatalk 2

automatic shutdown!!

i have a rooted galaxy core and my problem is: at 30% of battery, the phone shutdown automatically even if i charged it to 100%, also i've used some app in the store to calibrate the battery but nothing change! , any one can help ! and 10x

try battery stats cleaner...it shoul solve ur problem
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Wipe the Battery Stats from the CWM recovery by navigating to Advanced option from the menu and Selecting Wipe Battery Stats ..
Or if u don't have CWM recovery try any other Battery stats cleaner
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It means the battery you used already damaged, maybe you should buy a new one, I too have experienced it.

Issa Eid said:
i have a rooted galaxy core and my problem is: at 30% of battery, the phone shutdown automatically even if i charged it to 100%, also i've used some app in the store to calibrate the battery but nothing change! , any one can help ! and 10x
Click to expand...
Click to collapse
if u have rooted so give a try with seeder app find on playstore.
dont forget..:thumbup::thumbup::thumbup:
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