How to stop screen dimming at 5% power?

[cojones]

Hi,

I'm trying to run through a few charge cycles with my new N5100 but when it gets to 5% power it turns off the brightness (i.e. no backlight) and the brightness setting is disabled, meaning that I can barely see the screen.

Is there any way of stopping this automating dimming so that the brightness remains on all the way down to 0%?

Thanks,

Coj

 

[Yokobln]

Thank you very much indeed!
That "feature" is bugging me beyond belief!

How on earth is it possible that Samsung is implementing this without an option to disable it?!?
I mean, it's a business device with a battery big enough to have 5% equal more than 30 minutes of screen time.
30 minutes can be quite crucial if I'm in the middle of a meeting or trying to figure out my train departure time.
You can't see a thing if the screen is dimmed down to 5%!

Any workaround and/or fix is greatly appreciated!

Regards,

Yoko

 

[emwno]

Thank you very much indeed!
That "feature" is bugging me beyond belief!

How on earth is it possible that Samsung is implementing this without an option to disable it?!?
I mean, it's a business device with a battery big enough to have 5% equal more than 30 minutes of screen time.
30 minutes can be quite crucial if I'm in the middle of a meeting or trying to figure out my train departure time.
You can't see a thing if the screen is dimmed down to 5%!

Any workaround and/or fix is greatly appreciated!

Regards,

Yoko

I think this is when the power saving mode is enabled automatically. Try turning it off in the settings. This is how it is on my note 2.

 

[cojones]

I think this is when the power saving mode is enabled automatically. Try turning it off in the settings. This is how it is on my note 2.

Nope! I enabled everything, disabled power saving just to try to get the unit to turn off to complete the discharge cycle but the screen remained dimmed...it's really frustrating.

 

[Warrior1975]

Im no expert, but isn't that bad for these batteries? I'm pretty sure doing that does more harm than good.

Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2

 

[robyr]

Im no expert, but isn't that bad for these batteries? I'm pretty sure doing that does more harm than good.

Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2

Yes, you are correct. What these people are trying to do is not only a waste of time, but directly harmful to the battery chemistry.

 

[cojones]

So what constitutes a full discharge cycle then? I bow to your superior knowledge!

Sent from my GT-N5100 using Tapatalk HD

 

[redpoint73]

Nope! I enabled everything, disabled power saving just to try to get the unit to turn off to complete the discharge cycle but the screen remained dimmed...it's really frustrating.

There is no benefit to discharging to shutoff. If you are trying to get the battery meter as accurate as possible, just discharging to 10, or even 20% is plenty. The meter is not all that accurate under the best or circumstances to justify going anywhere below 10%.

Charge to 100%, let it sit on the charger for a while, to make sure you get the saturation charge. Then use until 10 or 20%. That is as much of a "full discharge cycle" you need for the purpose of calibrating the battery meter.

Also, discharge until the device shuts off, and you might find the device won't take a charge or power on anymore. The safety circuit is supposed to prevent the battery from over-draining (voltage below changeable threshold). But its not failsafe. Somewhat rare, but I've seen it happen to a number of XDA users on various Android devices. Usually, charging overnight will bring the battery back. Sometimes . . . not.

 

[Warrior1975]

So what constitutes a full discharge cycle then? I bow to your superior knowledge!

Sent from my GT-N5100 using Tapatalk HD

No reason to get all sarcastic. This is a place to learn, lots of people are very knowledgeable, most more than the next. You think your way is right, then continue. Or perhaps, take a step back and maybe learn a little more before doing things.

Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2

 

[Yokobln]

We could get deep into LiIon or LiPo chemistry if we wanted to, but just to clear up an thing or two....

- I fully expect a device in that price range from a manufacturer like Samsung to not take *any* damage if I discharge the tablet. I am fully aware of the damage that can be done to these battery cells by deep-discharging them as I use them on a regular basis in RC aircrafts. I also know that there is a quiet sophisticated dis/charge protection circuit built in any (serious) device that is using these type of cells. The battery aswell as the notebook / tablet have those built in.
It should not not be possible to deep-discharge any device from a reputable company unless you let it sit on your desk for months without charging it at all. It's shut of by the controller long before that happens.

- I fully expect to be able to use all battery power until the above mentioned controls kick in and power the unit down hard. This goes for any notebook, mobile phone or tablet. There are many devices on the market that do not force you to use the device for half an hour at 5% brightness before shutting down. Why? The damage (if there was any) would be the same. Half an hour at 5% or 7 minutes at 100% brightness ..... the battery doesn't care.

- Unfortunately we live in a world where we exchange our gadgets every 2 years. What do I care if the battery performance degrades to 75% three years from now. Samsung certainly doesn't, or they would have made the battery replaceable in the first place (which I would appreciate a lot, even if that came with 2mm extra thickness + 35 grams of additional plastic)

Sorry for typos... me = german

Regards,

Yoko

 

[cojones]

No reason to get all sarcastic. This is a place to learn, lots of people are very knowledgeable, most more than the next. You think your way is right, then continue. Or perhaps, take a step back and maybe learn a little more before doing things.

Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2

I was not being sarcastic. You read it that way and if you took it as sarcastic then that says more about you than me. Do not pass judgement that ultimately is futile and unhelpful to all.

I was being genuine when I say I bow to your (pl.) superior knowledge...I really do. The reason I'm on here is to learn in order to get the best experience. It just so happens that many years ago when I started, the batteries required regular full discharge cycles, so that was my current understanding until guidance was provided to change that.

 

[Warrior1975]

I apologize for my statement, I took it the wrong way.

Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2

 

[redpoint73]

We could get deep into LiIon or LiPo chemistry if we wanted to, but just to clear up an thing or two....

- I fully expect a device in that price range from a manufacturer like Samsung to not take *any* damage if I discharge the tablet. I am fully aware of the damage that can be done to these battery cells by deep-discharging them as I use them on a regular basis in RC aircrafts. I also know that there is a quiet sophisticated dis/charge protection circuit built in any (serious) device that is using these type of cells. The battery aswell as the notebook / tablet have those built in.
It should not not be possible to deep-discharge any device from a reputable company unless you let it sit on your desk for months without charging it at all. It's shut of by the controller long before that happens.

I'd say that the danger is less about actual chemical damage to the battery; and more (as I've previously mentioned) that the voltage will drop too low for the battery to take a charge from the standard charger.

In theory, the protection circuit is meant to prevent this. Unfortunately, its not failsafe (and nothing ever is) in reality. I've seen it happen plenty of times before on other Android devices, and good quality ones (HTC One X, Desire Z, etc.) where folks have let the battery drain to shutoff, and the battery will no longer take a charge. I wouldn't call it "common", really more of a rarity. But of course, there is always that possibility that Murphy's Law is going to decide that you are "that guy", and than that really sucks.

In some of these instances, letting the device sit on the standard wall charger overnight will get it working again. But sometimes, this doesn't work. In that case the solution was a battery meter with "boost" function which out get the battery back up to the proper voltage. But this equipment is typically only found in specialized repair shops. Buying a new battery was a simple and reletively cheap alternate fix on some past devices. But since the battery is not meant to be customer replaced on the Note 8, this is less of a feasible fix.

Again, this issue in uncommon, but it exists. We all let our devices drain too low by accident, at one time or other. But why tempt fate and probability? There is simply no good reason to drain the device to shutoff on a frequent and intentional basis.

 

[DannyB513]

One of my buddies is waiting on a new Nexus 7 tablet because he accidentally let it drain completely and it wont take a charge.

Sent from my SAMSUNG-SGH-I727 using xda premium

 

[0x6A7232]

Solution to the OP?

For me, at least, this app works:

https://play.google.com/store/apps/details?id=mobi.pruss.superdim

 

[ugzz]

^second, works great. sucks we have to work around but that app works great for me (note 2).
Only bug is when you lock the screen and unlock you have to re-enable rootdim again. Even the "lock" feature doesnt seem to work against the systems 5% force dim.

 

[pjordi]

I found a way to solve the problem using the app llama. Create 2 events:
1: Conditions = battery below 6% AND not chargin; action = screen brightness = 100%
2: conditions = battery above 5 OR charging;
Action = screen brightness = auto.

Works for me with Sgs5mini and 4.4.2 stock rom, rooted

Regards

 

[spidey_rwm]

This is an old thread, but I needed to comment in case someone else was wanting to discharge their zerolemon 100000mah battery and not have the screen or not be able to use their camera. Go to setting, developers options and click stay awake... This works! I've been trying for a while to figure out how to use my phone for the days it takes to run the battery out on this large capacity battery, per the instructions from zerolemon and finally found it by accident.