yashsingh1/xdaforums huggingface dataset:
[Android Software/Hacking General [Developers Only]] thehyecircus:
Some stuff still pops up everytime I clear my running apps, so I was wondering what is recommended to check off first.
[Android Software/Hacking General [Developers Only]] dEris:
Main thing are widgets or apps you require on all the time.
[Android Software/Hacking General [Developers Only]] double_ofour:
You shouldn't use such app like this, let the android do the killing stuff him self.. try to google about taskiller on android to make it clearer for you..
[Android Software/Hacking General [Developers Only]] dEris:
Some lower end phones require a task killer to even make the phone bearable. I noticed my old Android phone needed to kill apps or it would start lagging really bad but when I killed tasks, it ran smooth. Keep this in mind, OP might not have a high end phone.
[Android Software/Hacking General [Developers Only]] double_ofour:
You will notice a speed up for a while but in a long run the system will not go stable enough..
[Android Software/Hacking General [Developers Only]] thehyecircus:
I'm using a Galaxy S. I just like to kill off programs. Am I not supposed to? I mean, there can be a LOT of programs running.
[XPERIA X1 Q&A, Help & Troubleshooting] Lukebad:
Hello everyone!

I've had my X1 for about two weeks now, and I love it!

Even with Windows Phone 7 coming up, there is just an undeniable charm about it. My bet is that the charm comes from the face buttons! hehe.

So anyway.

My problem is the following: Everytime I push the "A" key, something goes wrong. Sometimes it doesnt register that it has been pressed, but most times it registers a "double" press! I press the "A" key, and it registers "aa", or sometimes even "aaa".

It is really bugging me out. Is there some program to fix that? Some... Program that lets you mess around with the key's repeat speed or something like that?

Thanks a bunch, guys. I love XDA!

PS: Whole thread was written in the X1! Hehehe.
[XPERIA X1 Q&A, Help & Troubleshooting] affan_khan:
XDA cant do any thing for this issue , this is factory fault SE :@
[XPERIA X1 Q&A, Help & Troubleshooting] Mr Black'd:
clean the keyboard.... disassemble and clean it, there will be no issue afterwards....

there is a tutorial to read, just use search.
[XPERIA X1 Q&A, Help & Troubleshooting] apocalypse_bg:
If your are affraid of doing it yourself, give it to a service center, and ask them to do it.
[XPERIA X1 Q&A, Help & Troubleshooting] Medulla_Oblongata:
Probably took you a while to fix all typo's :P *snickers quietly*

It's a well known problem that occurs to any X1 user sooner or later. You'll have to disassemble the phone to clean the keyboard. There is a good tutorial here: http://xdaforums.com/showthread.php?t=535664
[XPERIA X1 Q&A, Help & Troubleshooting] paul c:
A slightly less aggressive approch is X1BH (search for it on this forum).

There is an option, in settings, to remove the "repeated" letterr :)

works a treat
[Bravo General] xdd:
Official specs say it only has dual band UMTS850 / UMTS1900.

Is this true, has anyone tried using it in europe's 2100 band for 3g ?
[Bravo General] MotoBravo:
Traveling back to Turkey the end of December, guess I'll find out .
[Bravo General] xdd:
Thanks MotoBravo, keep us posted.
[Bravo General] xdd:
No WCDMA 2100

The answer to my own question is NO, there is no WCDMA 2100 (UMTS Band I) support in Bravo.

I spent some time today checking out the FCC documents on the device, 2100 is not specified.

First I though it might be that FCC does not list non US bands, but cross checking motorola defy docs, It clearly states support for WCDMA 850/1700/2100 bands.

So bye bye to bravo from me.

Thanks everyone for your help.
[Imagio General] bign94:
I found this here at xda and have no info on where it came from or who. Hope this can help further the development of android on the imagio. (xtreme-toyz.net/private/imagio-android.zip)
[Nook Color General] madyogi:
Let me first say that I don't currently own a NC. Though I have asked for one as a Christmas present in the light of what I've learned on this forum, combined with my experiences testing one in the Barnes and Noble store near my house. The touch screen experience in store (several different experiences actually) was fantastic. Combine that with the ability to "root" the device, and I'm super excited about it.

That said, I'm sort of an academic. Most of my reading involves heavy highlighting/annotation in books that are largely not eBooks bought from the "stores." One thing that might make or break this purchase is the ability to export my notes/highlights from the reader app onboard. I have gathered that, although the stock B&N reader makes noting/highlighting really easy, you can't export those notes into an annotated pdf or txt file at this point. So I'm wondering if 1) some updates may have been made to allow this functionality, or 2) maybe there are some 3rd party readers that could be "sideloaded" onto a rooted Nook Color to allow for such functionality.

Thanks in advance for any info.

Philip
[Droid Incredible General] Spritemast:
Pretty nice to know why it drops from 100% so fast now .....THANKS!
[Droid Incredible General] luvit:
Well written ..even prior to the data presentation!
[Droid Incredible General] spatton:
Are the images not posted or am I doing something wrong?
[Droid Incredible General] toosurreal01:
Great read, well thought out and explained.

The only thing I'll add is that while there isn't a "memory affect" on our batteries, it is still recommended to do a full charge/discharge (don't let it get to <5% though) about once every 3 months.
[Droid Incredible General] byrong:
Thanks for the kind words, gents.

You should be able to see them embedded in the post. You can try reading it directly from my site: http://byrong.com/PowerTesting/

I'm not currently aware of any issues with my hosting, so hopefully it shows up OK for people.

Good point for many devices which may learn the wrong battery stats if they are never depleted. I am still not sure how this may or may not apply to our devices, so I hesitate to comment on it one way or the other.

I hope someone takes the time to delve more deeply into the battery stats that our devices record. Given the fact that we can wipe them using clockwork recovery, we are at least aware of where/how they are being kept.

That brings up another point worth mentioning, by the way: some people claim that wiping battery stats after a bump charge is a "fix" to increase the total charge that our phones will later apply. This has not been my experience. I have bumped/wiped in accordance with the various tutorials out there, but even afterward I have still found a large difference between a subsequent bump-charging and regular charging.
[Droid Incredible General] spatton:
For some reason, my employer does not like your site and as such, I could not see he images.

Thanks for taking the time to do this. You confirmed my suspicions that I never documented but certainly experienced.

My take on the battery thing now, especially after reading this:

Actively and aggressively seek chargers

Don't look at he specific % of battery, when it gets yellow, get more aggressive

Relax

Use it in the morning, charge it while you shower - better than running out the door.

Great article!
[Droid Incredible General] Gahh Its Lee:
I used to bump charge now if I'm near a charger I just throw it on for a few minutes. I also always carry a spare battery on me.
[Droid Incredible General] ufvj217:
Very nice.

I have a couple questions though. So on older phones, leaving it plugged in and it hit 100%, but was still getting full current from the charger for the remainder of the night, damages the battery right? so bump charging is doing the same thing, but not really damaging it as much, becuase we're unplugging it as soon as the light turns green, so its "at 100%" but we arent leaving it plugged in for hours after its green.
[Droid Incredible General] chemical1der:
Excellent read. Very informative and well written!!
[Droid Incredible General] dhardison:
very well written. thank you, sir
[Droid Incredible General] byrong:
Wow, I'm a little flattered. This is the first time I've heard of an employer blocking my site.

I don't have hard data for my older devices like I do for this phone, so my answers to this (and your following questions) are a mixture of anecdote, reading, and conjecture.

I don't think that the older devices were still getting full current after hitting 100% but rather some sort of trickle charge to keep them topped off. Battery chemistry itself will limit the charging current that can be applied as the battery approaches capacity.

Depending on the device and its management system, damage could come from too much charge being applied, or it could simply come from keeping the battery at the highest charge level possible for prolonged periods. That may sound like the same thing, but technically it's not.

Batteries are wear items, and even use under ideal conditions will eventually kill them. As shown on Battery University's page on prolonging lithium-based batteries, however, even minor decreases in the final charge level will greatly increase the number of cycles that a battery can endure (note figure 2)

I'm not 100% sure whether:

Bump-charging is simply charging the battery to its physical capacity, which is greater than the capacity that our software thinks is appropriate;

Bump-charging is actually applying a charge to the battery that is outside of the rated specs for the battery; or

Some mix of 1 & 2

Also, since I can't use any logging tools while the phone is off, I'm not sure how the current behaves once the phone hits 'green' while off.

I therefore don't want to make a hard guess at the three options listed, as I don't want to spread false information. With that said, I think it is apparent through both testing and real-world use that bump-charging applies a charge that is higher than what is allowed when all of the phone's protections are "awake." Given that, we have to ask ourselves why the waking protections are stricter.

If you are inclined to believe that the manufacturer is setting limits that are too low, in an effort to prolong cycle life (or limit liability), then maybe bump-charging isn't too bad.

If you are inclined to believe that the manufacturer chose the charging limits for a good reason, and has the best interest of the consumer in mind, then bump-charging should be considered problematic.

I don't know if one of these is absolutely true over the other, but my life is easier without bump-charging, so I just avoid it. That's a personal choice though. I'm not trying to advance a position here as much as I'm trying to spread information and spark discussion.

Thanks to everyone for taking the time to read, and for your questions and comments.
[Droid Incredible General] ufvj217:
Well put. I rarely bump charge myself, sometimes once i get to work (its at 88-90% by this time, 7am) ill charge it back up, then power it off and bump charge it a couple times. depending on what ill be doing that day after work. since im at a desk though all day, i usually just use it, when it gets to about 50 or so, ill plug it back in, etc. that seems to work fine for me. i do have the htc 2150 battery as well :)
[Droid Incredible General] gbenj:
Like you said, most people probably knew most of that, but still great to see it well written and explained.

Great job on this, I'll most definitely be passing it along to people who ask me what's going on.

Again, well written and very well explained.

Thanks
[Droid Incredible General] Wingchun222:
Thank you!

This has been perplexing me for some time now. Thanks for the info!
[Droid Incredible General] ms79723:
Well if youre looking for a batt fix that fixes this issue, you have to take a look in the Nexus and Desire forums. The Desire has it working for sure and I'm not sure about the Nexus. Unfortunately, their fix cannot be applied to our phones because we use a different battery driver...>.< sucks.

And bump charging works sometimes, idk why people turn off their phone to bump charge, thats actually worse than bump charging it when the phone is on. Bump charging when the phone is on is the best thing, the reason why is because percentage means actually nothing with these phones. THe percentage is read from the batterystats.bin file (I think..), which can easily be manipulated. Bump charging works because it rewrites that file once it hits 100% and at the same time, charges back to the highest voltage possible.

I've been working on a fix for our phones (i personally dont own an Incredible, I own an Evo and they use the same driver) and I'm pretty much close. Been on it 24/7 for the past few weeks and all I have to deal with now is the charger timer that seems to reset at a certain time that I cant seem to find yet. This fix should also calibrate the battery on each charge so that you will no longer need to wipe stats or bump charge or do any of that stuff.
[Droid Incredible General] ufvj217:
so you can charge with the phone on until the led is green, unplug, plug back in (with phone still on) and itll change back to amber for a while?
[Droid Incredible General] ms79723:
if you unplug and plug back in instantly it wont do jack for ya. You gotta unplug, wait until you hit 99% and then plug it back in and wait for 100%. Doing that while the phone is on is best because if you've ever noticed, the batterystats gets messed up while the phone is off for the most part (ex: Recovery mode and stuff). Also, idk if this is true for the Inc, but with the Evo, if you have the phone on the charger while its off and power it on while the LED is green, it doesnt stay charging, it goes off the charger to use some battery to power on and then it charges and that messes with the batterystats which messes with the voltage for some odd reason.
[Droid Incredible General] answerman:
Very nicely done. There are always going to be people who don't get it, but this is easily the best synopsis I've seen yet. People get all wrapped up in numbers, instead of actual use, and the percentage becomes way more important than it should be. Just do whatever you need to do (keep a charger handy, get a bigger battery) to support your needs.

I'm one of the fortunate ones... between the tweaks I've done with custom kernels and whatnot and the fact that I'm not a real heavy user, I have no problem making it from morning to bedtime with more than 50% remaining. And you know what? I don't care whether my phone's at 70% or 10% when I plug it in before bed. As long as it makes it that far, I'm happy. I could easily go two days between charges, but I don't bother, because there really isn't any point other than to gloat about my great battery life, which doesn't impress anyone. I've got a charger, and I use it every night. It works for me.
[Droid Incredible General] KukurikU:
One of the best posts i ever read here! Kudos from an electrical engineer ;)
[Droid Incredible General] Toysrme257th:
For example on my old HTC Imagio:

Currently reporting 36% battery capacity.

DMM on the battery shows 3.760v.

This is perfectly accurate! Let me explain why!

As with most mobile OS's, Windows Mobile 6.5.X warns 10% charge is left in the phone when the battery has 20% SOC left.

They cut off at 0% when there is 10% left in the battery. THIS IS GOOD. This keeps your phone from typically being used inside the remaining 20% battery life that quickly kills most chemistry lithium cells.

Whatever the State of Charge (From now own SOC) reported by the os, add 10% to that figure. That's what the battery actually has.

Absolutely NOT TRUE for lion or lipo batteries. The largest four factors in the lifespan & performance of lithium batteries are:

1) Discharging BELOW 20%. This RAPIDLY deteriorates capacity of typical lithium cells. (Stop at 3.2v for lipo)

2) Overcharging, beyond 4.1v (liion) or 4.2v (lipo)

3) Charge state VS age of cell.

Lithium chemistries give the longest lifespan when used & stored at 50% state of charge. The lifespan of the cell is greatly reduced when stored at high, or low capacity. For lipo this would be 3.85v.

There's a reason why hobby people that use lipo's will charge them to 4.2v, while military application lipo's are only 3.92v (and for that mattery NASA's lipo's are only used in a 5-15% window around 50% state of charge!) It greatly extends the effective battery life over the long term!

4) Abusing the C rating of the cell. Either charging OR discharging faster than the battery is designed for.

Keep in mind many smartphones can draw 1amp from batteries that are NOT rated for current draws that high.

To the OP. While the cheap electronics used can & do have some accuracy problems. Everything is done on purpose for battery life issues. High drain electronic devices commonly use batteries that are not up to the C ratings of the devices they're used in. They also tend to be stored incorrectly over long periods of time before the devices are even sold! Plus, in-use the devices tend to be "road hard & put up wet" in nearly all cases.

Devices shy away from using full capacity both low & high for the sake of the long term.
[Droid Incredible General] del4:
Thanks for the informative post!
[Droid Incredible General] luvit:
I once told a hot chick that leaving her phone in airplane mode would use no battery life.

Boy, oh boy, she ready lit-into me..

"I LOST 10% YOU, {$#@!! WHY DO I EVER LISTEN TO YOU."

But she was bi-polar -- She never acknowledged that though..
[Droid Incredible General] TNS201:
Nice write up and graphs!
[Droid Incredible General] bobby janow:
I agree with everyone here, great post and great work. I have a question regarding bump charging on the phone. What happens when you charge the battery on an external charger? There really is no "bump" charge per se, it simply charges until full. If I take a fully charged, non bumped battery out of the phone and plug it in to the external, it actually charges for another 15 minutes or so. Would your stats show the same results for a battery charged on the external?

As for the theory of why the phone doesn't fully charge while on, I have my own. Lawyers. With the increased heat and demands on the battery what if they catch your pants on fire as happened some years ago with laptop batteries or an iphone/pod? Bad news and lawsuit supreme. So companies said, while the phone is on (assumption that it's being used) it will not fully charge but will report full so no further charging will be allowed by the hardware. Due dilligence or whatever they call it now in court? Just a theory, I'm not an engineer.
[Droid Incredible General] jacobas92:
Thanks for the info. I'm fairly new to this stuff, and now I know a lot more about lithium-ion batteries.
[Droid Incredible General] bmabry:
ms79723,

Did you get any further on the fix you mentioned here or did you run into issues?
[Droid Incredible General] byrong:
I don't have an external charger, so I can't comment with any data. My guess is that it probably gives a similar charge to a bump charge, but that's really just a guess.

The great thing about this kind of data collection is that anyone here in the community can try their hand at it: I didn't use any exotic tools. I would encourage you to get a battery monitoring app (like CurrentWidget, but there are plenty of others) and try to gather your own findings. Through a number of trials, you should be able to gather data to compare external charging to other means of charging (just make sure to control for confounding variables as best as possible).
[Droid Incredible General] NeverSummer2010:
This helps me feel more confident about my Incredible as I always felt there was something wrong with my battery or charger. I can stop obsessing over the battery gauge now.
[Droid Incredible General] spatton:
I picked up a 5000ma New Trent backup unit. If I am going to be abusing my phone - I throw that in my pocket. I also use Ultimate Juice. Now that it has been re-designed, optimized and tuned up -it is GREAT!

Ultimate Juice wont help you one bit if you are using your phone a lot, but if you are driving around, if you are watching TV, if you are just chilllin - it will save you MAD battery.

Scott
[Droid Incredible General] unreal2k:
Very nice writeup byrong. Thank you!
[Droid Incredible General] POQbum:
Cheers to the research OP and also helpful post by Toysrme257th on page3.

Gives me more peace of mind that things are working as they should. I got the HTC extended battery so I've always lasted through the day even with heavy use- but always curious why the big drop in the morning.

I think over time the software learns that it is actually starting out with 90% so the drop is less dramatic. Today the big drop was to 94% (yesterday was to 89%), though possible this was because of less use.

This would also mean that really, we are only using 80% of the battery when the phones 'protectors' are on. 10% too high, and 10% too low. Good stuff to know, especially about the anytime charge and not to drain all the way down.
[Droid Incredible General] cf9182:
Very cool,thanks for the info.
[Droid Incredible General] tb5...:
great work summing this all up...

written well and understandable for all.

it even has pictures! haha...

:cool:
[Droid Incredible General] drago34:
That was some nice research and a ton of good news haha.
[Droid Incredible General] RobertMaurizio:
This is a great post. Thanks!
[Droid Incredible General] MedleHed:
Very helpful! Pretty much solidifies what I already thought about the process. I've been unsuccessfully trying to convince people lithium ion batteries don't have "memory" problems for the past few years.

"With great knowledge comes great power. With great power comes great responsibility."

Now we must go on with our newfound knowledge and teach the world around us!
[Droid Incredible General] Cavi_:
I finally have a source to send people to when I'm explaining this and can't quite get through to them... great post!
[Droid Incredible General] Kent_Davis:
life is full of lies isn't it? lol good information thanks for sharing
[Droid Incredible General] ICEMANN42:
People should just get a spare battery charger and charg with that i got one a couple of weeks ago and my battery is much much better stays at 100 with no use for hours its great...... hope this helps.....but its nice to see people doing reserch here......
[Droid Incredible General] POQbum:
I would dred changing batteries even if it was once a week. I have a case on and it's a pain to go through all of that. It seems everyone has their own way of dealing with the poor battery life here on the incredible.
[Droid Incredible General] cleveratticus:
Thanks for the thread. Really well put together man.
[Droid Incredible General] TUDrewser:
This is a FANTASTIC explanation...thank you so much! Really explained the battery phenomenon perfect.
[Droid Incredible General] Ficus*:
Thanks a lot. I did the bump charging technique, with the wipe battery stats in the end. How can I reset to original battery stats to avoid the bump charging? I want my phone to lie to me!!
[Droid Incredible General] phaze one:
Glad you did this, I had no idea what the hell was going on.

sent by carrier pigeon
[Droid Incredible General] lainzee:
Excellent post. Lots of information but still easy to understand. I always wondered about that initial battery drop but now I know it's nothing to worry about.
[Droid Incredible General] byrong:
The battery stats should always be "learning," so if you just use your device normally, they will respond to that. If you want, go ahead and wipe them, but I think the effect of wiping them has been overstated. Even if you wiped them after a fresh bump charge, future standard charges still wouldn't hit the same charge state that a bump does.
[Droid Incredible General] 4Bear:
Nicely done. That answers several questions. Thx
[Droid Incredible General] yoda1:
this is one of the best ways to see the true facts about the batterie
[Droid Incredible General] Mr Woolf:
Possibly the best presented thread I have read. I agree 100% with everything in post one. Confirms all of my beliefs about batteries/fixes, backed up with nice hard data.

Quality work. Appreciated.
[Droid Incredible General] BobVS:
Excellent piece, thanks