yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S21 Ultra] iampunX:
While this is true, it's still disappointing to have an option to fast charge your phone that simply doesn't work. You never know when one might need to fast charge their phone, and having a working feature is definitely more reassuring than a broken one thinking that you might never use it. Remember, the device is still the most expensive android in this formfactor, and all the features in it better work the way they should.
[Samsung Galaxy S21 Ultra] babyboy3265:
Well realistically if you see it as a game and are having fun in the process then you are doing it right and that's all that matters. If we are here on XDA it means we enjoy going the extra mile when it comes to our superphones :D

I only so far had to change the battery on my Note 5 :D Still have a Sony Xperia S (2012) which works and the battery has not swollen. Yet my younger Xperia Z, swolle, bcoz I was using the phone as an ip cam for a few months and that didn't go well with the battery unfortunately :/

At the end of the day it is also a lot about luck it seems.
[Samsung Galaxy S21 Ultra] blackhawk:
The phone is overheating whilst charging?

If the ambient temperature is to high and/or phone battery start temp, it can go over temperature. Fast charging creates a lot heat* due the high current flow through resistive elements of the battery.

At around 102°F it will drop out of fast charging and soon after stop charging all together.

Cool it as it approaches 98F or so.

*this indicates that fast charging is working.
[Samsung Galaxy S21 Ultra] NippleSauce:
This isn't really an answer to your question as other people have already mentioned the temperature related issue behind fast charging. But instead, this is more of a simple question to the smart phone world:

Why does everyone rely solely on using fast charging over the wire/cable to max battery? How often are you using your phone where you need to recharge it on a daily basis in the middle of the day with super fast charge enabled? Are you using it strictly for gaming to reduce your battery by that much that fast?

My phone usually lasts two complete days of use before reaching 10% battery. But I went ahead and disabled ALL of the different fast charging options in the settings (so both the wired and wireless options). Then, to charge up my device, I put it on the weakest wireless charger that I could find on Amazon for just a few bucks and let it sit there overnight. Sure, it takes about 4.5 hours to fully charge with this weak wireless charging pad... But luckily enough, the weak wireless chargers cause your phone to barely generate any heat until the very end of its charging cycle. But the good thing is that once these phones hit their 100% charged mark, they stop receiving a further charge (so your battery isn't wrecked due to a whole night's worth of overcharging).

So overall, disabling all of the fast charging methods included will not only make each battery charge last longer, but it would make the battery's capacity stay bigger over an extended period of time. This is due to the fact that you'll never be overcharging your battery or charging it too quickly (which can also diminish its overall capacity by damaging some of the internal components over time).

So basically,

if you're not wreaking havoc on your phone's battery charge via constant mobile gaming

(or other extremely battery intensive tasks)

,

then you should probably do what I mentioned above to keep your phone healthier for a longer period of time! It's all for device health and saving money! And this only makes more sense when you're dealing with a phone as expensive as this one!

*Edit* - Just to clarify, this information is all based upon professional studies done amongst teams at a few universities. If you don't agree, look into these recent studies =). Fast charging is, unfortunately, a top cause of battery degradation partially due to significantly increasing the heat output of the device connected and often raising it into the unsafe temperature threshold. Sure, charging right to 100% under full temperature control and then stopping is worse then stopping your charge at 90%... But both charging methods are still better than frequently using fast charging to get your phone battery maxed out.
[Samsung Galaxy S21 Ultra] blackhawk:
If you charge to 100% that is far more damaging than a fast charge from 40-80%.

Likewise deep discharges below 20% stress the cell needlessly.

Slow charging won't save you from Li Plating if the charge temperature is too low. Charging below 72°F is potentially problematic.

Heat during charging isn't necessary a bad thing as it an a electrochemical reaction that needs heat to optimumly react.

A start temperature of 87°F is ideal for fast charging, otherwise 82F or above.

The actual charging process is mildly endothermic but the resistive elements* in the battery produce more heat than the reaction absorbs.

*conductors carrying heavy current flow
[Samsung Galaxy S21 Ultra] amirage:
All valid points. Here's my 2 cents - 1) Fast charging = fast battery degradation. I learnt that the hard way when I used to charge my OP7Pro daily only the stock fast charger eventually leading to loss of battery health to 80% in 10 months. I changed the battery FOC from the service centre as it was still under warranty. 2) Rarely charge the device to 100% whilst keeping it charged between 20-80%. I usually keep my battery in this range and this surely has improves battery health as I learnt from my OP7Pro. Using this technique, my OP7Pro's new battery lost only 3% health in a span of 7 months.

It's good to use the fast charging option and also charging all the way to 100% once in a while. I really wish Android implements iOS's battery charging technique where it charges the phone to 80% over-night and does the balance charge after a certain post waking-up (assuming we are allowed to set the wake-up and sleep times...or set a different DND schedule for battery charging).
[Samsung Galaxy S21 Ultra] enigmaamit:
On my Samsung Galaxy Tab 7, there is a battery protection feature which if turned on, charges the tablet upto 85% only, and won't let it go beyond that. When you turn ithis feature on, the tablet will restart once to re-calibrate battery and it starts showing 100% charge when it's actually at 85%. So your battery is always in a low stress state and you cannot overcharge it even with overnight charging. Just set it once and forget about it. I set it on from the day i got it. That's such a cool feature. Wonder why they haven't implemented that in they mobile phone line-up.
[Samsung Galaxy S21 Ultra] iampunX:
Everyone seems to know a lot about battery tech, but no one here seems to know why a feature (fast charging) that's supposed to work isn't working on a lot of devices.

With fast charging on, S21 Ultra should charge in ~75 minutes from 0-100 using a 25w Samsung charger as seen in many reviews. But that's not the case for some of us.

Does anyone know why? That's the question here.
[Samsung Galaxy S21 Ultra] enigmaamit:
I can understand your frustration buddy. But I don't know how to help. My 25W charger takes around 90 minutes to charge the phone fully. I've just made peace with that.
[Samsung Galaxy S21 Ultra] blackhawk:
Start temperature being too low will do it every time.

Minimum battery temperature should be 72°F (82°F is better) to start any charge cycle.

For fast charging the minimum is probably the same but maybe lower or higher. Below 60°F fast charging will likely not engage.

If it doesn't engage at the beginning, it will be disable for that charge cycle. The fast changing screen indicator doesn't mean it's engaged if the temp is too low or if other physical parameters aren't met!

I find a start temp of 85-90°F works best for reliable fast charging. Keep battery below 101°F or fast charging even all charging will disengage.

Cool as needed in ambient temperatures above 85°F or so.

This is what I observed for my Note 10+, other models may differ but should be similar.

Do not fast charge below 82°F or above 102°F as it increases the chances of Li plating dramatically.
[Samsung Galaxy S21 Ultra] iampunX:
Well, 90 is still only an hour and a half. Things are only getting worse here. Today morning, it took me over 2 and a half hours, that's over 150 minutes to fully charge. I don't think I can make peace with that. In fact I have lost all peace. The device is hardly a week old.
[Samsung Galaxy S21 Ultra] iampunX:
I do not have an IR thermometer so cannot tell the exact temperature, but it does get pretty warm to the touch while. The device is hardly a week old. So it shouldn't get to unusually low or high temperatures. I am only a moderate user. I have been a OnePlus user for the past 7 years, and such an issue has never come up. I am sure the battery tech is almost the same everywhere.
[Samsung Galaxy S21 Ultra] enigmaamit:
Okay.

Then only few options remain. Try other 25W chargers - maybe the current one is faulty, or get phone replaced, or get another phone.

Not sure what else one could do in this situation if you've already tried everything else.
[Samsung Galaxy S21 Ultra] blackhawk:
The best way is to use the battery's own temp sensor.

I use Accubattery because it has all that data on the charge page. So if I turn off the phone with that page open, even while charging I can take a quick look at the battery temp and if you look at the charging ma within the first second you'll see the actual current draw estimate when the screen was off.

I use the paid version because it's useful and has dark mode. The charge % alarm is useful and I especially like the power charging/discharging log. It not perfect but it's a very useful monitoring app.

I block it's internat data with Karma Firewall (a great freeware app) because it doesn't need internet access once activated, ha-ha.
[Samsung Galaxy S21 Ultra] blackhawk:
Return it if you can. Sounds like it could be hardware.

At a battery start temperature of 85°F with fast charging enable it should charge like a demon from 40-70%. About 2% @ minute like clockwork.

Make sure both cable plugs are fully seated.

Try clearing the system cache.

Try a hard reboot (not reset!).

Try toggling the fast charge switch while not charging on/off 3 times.

A factory reset will just waste your time more then likely.
[Samsung Galaxy S21 Ultra] tiliarou:
The question is not really if fast charging is bad for the phone, but more likely: why the hell is Samsung unable to manage fast charging on their premium and one of the most expensive phone whilst cheaper alternative works properly? If someone wants to have fast charge with detrimental effect on battery health in the long run, it is their choice and the option in the settings should enable that flawlessly... Which is not always the case
[Samsung Galaxy S21 Ultra] enigmaamit:
May have something to do with the Note 7 fiasco?

Once burned, twice shy...?

Dunno, I'm just guessing.
[Samsung Galaxy S21 Ultra] nixnixnixnix4:
If the phone, battery, or charger start heating up, then, the charging rate will slow down.

I have a 1 Watt charger that I use for overnight charging. It takes it 1 hour and 20 minutes to charge by 10%.
[Samsung Galaxy S21 Ultra] blackhawk:
Sometimes if it heats up too much I think it ends the charge cycle. Not for sure because I don't deliberately roast my batteries and will end it if it goes above 101F.

You can't do any wrong slow charging though as long as the battery temp is above 72F
[Samsung Galaxy S21 Ultra] nixnixnixnix4:
If a battery takes 14 Hours to charge at 1 W, does it mean the capacity is 14Wh?
[Samsung Galaxy S21 Ultra] blackhawk:
No. V×A=W You don't know what the actual voltage or amperage is or how much is actually being stored by the battery and there's heat lose as well.
[Samsung Galaxy S21 Ultra] nixnixnixnix4:
In my case, it's a 5V 200mA charger.

Does that help?

There's got to be a way to make some kind of estimate or upper bound.
[Samsung Galaxy S21 Ultra] blackhawk:
You have to measure it real time as you charge it and adjust for the waste heat which may be slight enough to ignore in this case.

The voltage and especially current are likely not constant so you need to take that into account.

I wouldn't get too wrapped up in it... a watt hour meter on the AC side give you a rough idea and allow you to track changes over time.
[Samsung Galaxy S21 Ultra] nixnixnixnix4:
But, assuming that a battery is taking in 1W for 14 hours with 100% efficiency: then, the capacity would be 14Wh?
[Samsung Galaxy S21 Ultra] blackhawk:
You can't assume you need to measure it.

A more realistic way to gauge the battery capacity be to measure it's mAh output of a fully charged battery.
[Samsung Galaxy S21 Ultra] ione2380:
All the smartphones I ever had resets the battery stats at 90% charge. S21 Ultra is the first phone I've seen to reset battery stats at 100%. That maybe means 100% isn't really 100% on s21 Ultra? I remember from my s9+ days when Samsung said that their phones are only charged 95% when showing 100% and the battery health will drop to 95% after 2 years of daily charges.
[Samsung Galaxy S21 Ultra] enigmaamit:
It's quite possible. They give the option of recalibrating the battery on the Tab S7 to show 100% when it's actually 85% and once you toggle that setting, there's no actual way to tell by looking at the battery graph that you're running at 85% battery instead of 100%.

And they themselves say this prolongs battery life. So they're well aware of it and One UI already has to code to implement it.

Whether they've done it on the phones or not is the real question.
[Samsung Galaxy S21 Ultra] chetly968:
My phone never charges as fast as what's displayed in the lockscreen. It'll say 49vminutes til fully charged and takes 45-50 minutes. But doesnt bother me to much. As long as it's charging. This happens with every Samsung phone I own. Probably something with the wiring in my house.
[Samsung Galaxy S21 Ultra] blackhawk:
My 20 watt Samsung brick will fast charge with 60 VAC!

Had a pole line fault recently and saw this to my amazement before I realized the voltage had dropped out that low.

It's switching power converter has a -huge-voltage tolerance range.

Charging estimates are always off🤣
[Samsung Galaxy S21 Ultra] nixnixnixnix4:
We need a simple feature that should be quick and easy to add: bypass charging.

ASUS and SONY have it.

That bypass charging should also be added to Bixby Routines and made available to apps like Tasker, Macrodroid, and Automate.

Y'all want to make a change.org petition?

1 simple feature like this should be easy for them to add under battery settings.

And, Bixby Routines will allow us to initiate "bypass charging" and disable further charging once the battery hits a certain level.

Plus, if you connect your phone to a USB hub for DeX, it'll allow you to maintain the phone at 40-50% charge, initiate bypass charging, and then not have to worry about leaving the phone at 100% charge and degrading all the time.
[Samsung Galaxy S21 Ultra] blackhawk:
Problem being is it's easy to damage the charging cable and the c port with it tethered like that... just a matter of time.

It's also very inconvenient to use as such.

Life is easier when you except Li batteries are cheap and an expendable asset.
[Samsung Galaxy S21 Ultra] nixnixnixnix4:
How would it damage the cable? You're just going to enable bypass charging via Bixby Routines at say 65% or 80% charge when the phone is on your night stand or desk.
[Samsung Galaxy S21 Ultra] blackhawk:
I thought you meant battery bypass ie using the phone powered by charger and not charging battery.

Charge limiting is fine if the phone's not on use.
[Samsung Galaxy S21 Ultra] nixnixnixnix4:
They call it "Bypass Charging" OR "Passthrough Charging".
[Samsung Galaxy S21 Ultra] blackhawk:
You're confusing terminology.

From multiple sources, here's one:

What is bypass charging?

Answer (1 of 10): Title: Demystifying Bypass Charging: A Comprehensive Guide In the realm of modern technology, where advancements seem to occur at the speed of light, new terms and concepts frequently emerge. One such term that has garnered attention in recent times is "bypass charging." But wh...

www.quora.com
[Samsung Galaxy S21 Ultra] chetly968:
The superduperuktra fast charging on my OnePlus 9 pro USB pretty reliable though which is strange.
[Samsung Galaxy S21 Ultra] blackhawk:
The next jump in performance will be the graphene cells. Xiaomi already is using them.

Charge much faster and last many times longer than traditional Li's.
[Samsung Galaxy S21 Ultra] varcor:
Your settings should match the photo. If you've adjusted the settings it should reflect Super fast charger connected. If it doesn't I would look to use a 3.0 Charging Cable. Beyond that it may need to be repaired.
[Off-topic] joopvdl:
hope this will not be the improper place, anyway i've got a weird problem and i cannot find a solution.

the situation is this: i am a professional composer and i've been using a creamware pulsar sound card as my main tool for quite a few years.

i am also a htc kaiser user and have been using activesync to, well you know what you use it for.

anyway i've just installed a fresh os (windows xp sp3) because the old one was getting slower and slower, but now i can't use activesync. it turns out, a dll called rapi.dll (in the windows/system32 folder) is its main dll.

unfortunately, the drivers for the pulsar card also use a rapi.dll, situated in pulsar's own folder. and every time i try to start up cubase or soundforge or whatever audio program, it will open the wrong rapi.dll, being the activesync one in the windows/system32 folder.

so i had to uninstall activesync in order to keep on working.

how will i convince these programs they are looking in the wrong place? any suggestions?

thanks a lot, Joop
[Android Head-Units] 9322:
Hello. I just want to ask. If I replaced the ST7708 with a TEF6686. The tuners will be compatible and the radio will play without further modifications in the hw or I have to do something else. I have XONRICH PX5, Android 10.4gb RAM, 64 ROM. The seller offers TEF6686. However, he mounted the ST7708 on the radio, which is a complete tragedy. The TEF6686 module stands around 20USD. I'd go for that. I just need to know if it's even possible. Thanks for any feedback. Please excuse google translator.
[Android Head-Units] orb3000:
Welcome to XDA!

As per forum rules English is the preferred language, you can use google translate.

Duplicated threads are not well seen around.

Enjoy your stay
[Nubia Red Magic 5G / 5S  Questions & Answers] Nagata_San21:
if so please tell me the guide, and if possible a way to root without losing my fp scanner.
[Realme X ROMs, Kernels, Recoveries, & Other Develo] ritish_rai69:
[B][CENTER]**** Disclaimer: I'm not responsible if you destroy your device. Use at your own risk!!! ****[/CENTER][/B]

Android Open Source illusion Project

About us:

AOSIP is a quality custom ROM based purely on AOSP. Twisted with the latest features and blended with stability. We strive for perfection and it shows.

Team Illusion:

Josh Fox (xlxfoxxlx)

Akhil Narang

Harsh Shandilya

Anirudh Gupta

Bug reporting:

DO NOT Report bugs if you're running a custom kernel or you installed Xposed

Grab a logcat right after the problem has occurred. (Please include at least a few pages of the log, not just the last few lines, unless you know what you're doing.)

If it is a random reboot, grab dmesg . (Do not bother getting a logcat unless you can get it just before the reboot. A logcat after a reboot is useless)

If the problem disappears after running "setenforce 0" from a root shell, grab /data/misc/audit/audit.log

Remember to provide as much info as possible. The more info you provide, the more likely that the bug will be solved. Please also do not report known issues.

Source code:

AOSiP Gerrit Review

AOSiP Github

Kernel Source

Latest Downloads:

MEGA

Credit/Thanks:

Mike Williams (founder and creator of AOSiP)

Google for Android and AOSP

LineageOS

ABC ROM

AquariOS

BootleggersROM

Dirty Unicorns

PixelExperience

OmniROM

CarbonROM

nathanchance

---------

Other projects whose work helped us to create this

And last but not the least, all our testers, who have helped us to squash many bugs so that we can try to release builds that as are flawless as possible

​

XDA: DevDB Information

Android Open Source Illusion Project, ROM for Realme X

Contributors

Ritish

Source Code: https://www.github.com/AOSiP

ROM OS Version: Android 11

ROM Kernel: Linux 4.x

ROM Firmware Required: REALMEUI

Based On: AOSP

Version Information

Status: Stable

Selinux : Enforcing

Stable Release Date: 2021-04-21

Created 2021-04-29

Last Updated 2021-04-29
[Realme X ROMs, Kernels, Recoveries, & Other Develo] ritish_rai69:
INSTALLATION PROCEDURE:

Have an unlocked bootloader, and TWRP installed/booted

Wipe data and cache (don't report anything bugs if you dirty flashed over another ROM)

Flash the ROM, GApps, Magisk, or any other mods (again, don't report bugs if you can't reproduce them with just ROM and GApps)

Reboot into the system, and enjoy the illusion!

KNOWN ISSUES:

Probably None.
[Realme X ROMs, Kernels, Recoveries, & Other Develo] pewpew83:
Does this rom have the ASHA protocol enable. - Audio Streaming for Hearing Aids.

probable path - Settings > Accessibility > Hearing Enhancements > Hearing Aid Support > Bluetooth

?

Thanks
[Realme X ROMs, Kernels, Recoveries, & Other Develo] AmarnathNR:
I came here ask the same question.

By any chance did you find any ROM which supports ASHA protocol in RealMe X device. I am a hearing impaired person and been looking for ASHA supported device for long. Thanks
[OnePlus 6T  Questions & Answers] Libraplum:
I am on a Oneplus 6t internationally converted and when I am outside on mobile data my calls are fine, but when I go inside my apartment the calls will drop when I am connected to wifi. Does anyone have any suggestions or know of a solution?
[Samsung Galaxy S10 Questions & Answers] beavermjr:
Today I entered an event in the calendar. It's an upcoming Dr. appointment. I closed the calendar and reopened it and the event was there. 30 minutes later, the event is gone. The only thing I did was to turn on mobile data.

I'm guessing that since the event wasn't in the google calendar online, it was deleted when it sync'd. I reentered the event this time with the data network on and it stayed put. Can someone tell me how to keep events from disappearing.

What's weirder is that if I enter multiple events with mobile data off, only the first one disappears.

I did try stopping by the local Verizon store, but the folks there are not technically savvy.
[General Topics] Clues:
My phone is constantly saying "Connecting to data network, cellular line, #777"

I ran the *228 and it stopped and was working on data and voice fine until I put it to sleep and woke it up (top button on the xv6900), now its going again.

It comes up every 5-10 seconds.

Is there one program disconnect and another connecting it!?
[General Topics] Clues:
Anyone?

Anyone seen this before?

I went through all the settings, I don't see anything I can do to stop this!
[General Topics] TheChampJT:
That's your "Broadband" connect for data. Are you trying to prevent it because you don't have the data plan, or just trying to remove the notification?
[General Topics] Clues:
Hiya

I'm unlimited data, was just irritating.

The connection window caused the task manager to minimize every 5 seconds!

But I did find the offending program, its a proprietary job related thing I had to install, junkware, it only started doing that after a few days, weird.

Thanks for the response!
[General Topics] TheChampJT:
Ok, I was going to say you can remove the notification under Settings>Personal>Sounds & Notifications. Under "Data Connect", uncheck everything.
[General Topics] Clues:
Cool

I'll try that. I hope I can dump the software tho!

Thanks again
[General Topics] teckels:
fixing the little things is why i love windows mobile. thanks!