STANDARD DISCLAIMER: I am not responsible for any damage caused to your phone or loved ones.
MUST HAVE ROOT.
The PROBLEM:
This mod is for phones that throttle heavily and lag during charging / heavy use/ gaming. Seems like it affects people on stock-based roms rather than AOSP/lineage based roms since the thermal file is deleted/edited already. Switching kernels does not help the throttling at all. Using any kernel or cpu app (EX kernel, kernel aduitor), you should see that the cpu freqs throttle down to 652mhz on the small cluster and 1036mhz on the big cluster when charging or after heavy use. The throttling isn't caused by thermals since the CPU temps and battery temps are well within acceptable levels (below 50 degrees cpu and below 25 degrees battery).
Seems like the only reason LG does this is to prolong battery life rather than keeping performance at acceptable levels.
The second issue is the SLOW charging when your screen is on. Ampere reports a maximum charging rate of ~300mah when charging (qc3 or regular) before the mod. This mod will increase it to ~1000mah when screen on (I'm unsure how to increase it further). Screen off charging is unaffected and is still Quick Charge.
THE FIX:
Download my "thermal-engine-8996.conf" file here: https://drive.google.com/file/d/0B0W3xXHgfOxvLUpKNWhrWDE0TDg/view?usp=sharing
Use a root explorer.
Backup your old one in root/system/etc (or just rename it to thermal-engine-8996.conf.bak).
Put the new one in root/system/etc
Edit: apparently it downloads as a .txt file so change it back to .conf
Change permissions to rw-r--r--
Restart and enjoy lag free charging + increased charging speed!
This will make your device slightly hotter and possibly less battery life during heavy use but that's a given.
Thermal throttling is NOT affected (CPU speeds still throttle after 80 degrees with my testing)
Flashing rom updates WILL overwrite the file so you will need to replace it again.
Different versions:
Reduced charging speed (to 600mah) when screen on (To reduce heat): https://drive.google.com/file/d/0B7VVzSKFTGVkNHBnWXNYY2JJdEU/view?usp=sharing
Reduced max speed (to 1824mhz) but kept 1000mah charging when screen on (should reduce heat when doing intensive tasks): https://drive.google.com/open?id=0B7VVzSKFTGVkWjlnUF84SDc0N0k
Reduced charging speed (600mah) + max speed (1824mhz) to reduce heat even more and will still help reduce lag:https://drive.google.com/file/d/0B7VVzSKFTGVkV2ZoTU1sS2YtOUk/view?usp=sharing
What I did:
Under [KRYO_SS] in the conf file, I edited the "device_perf_floor" value to 2150000 instead of the stock 1036800. This will cause the phone to never throttle below 2150mhz big cluster and 1593mhz small cluster when charging/heavy use. If you are using an kernel that supports overclocking, this value can be set higher (to your max big cluster mhz). The small cluster mhz will automatically scale up since there's no value for it anyways. I think this entire section is just to save battery life as I see no other benefit from throttling when you're charging (when temps are low). Honestly, you can probably delete the whole section under [KRYO_SS] and it'll keep it at max mhz but I rather have some control over it.
For increased charging speed when screen on, I edited the values under [CHG_MONITOR]. I also deleted the entire [PA_MONITOR] and [LCD_ON_MONITOR] section. This increases the charging speed to ~1000mah from ~300mah but I can't seem to increase it further when screen on. Might be due to another setting I haven't found yet.
I also increased the GPU clocks to decrease throttling but I haven't found GPU throttling to be a problem at all before the mod so this probably won't affect performance.
The only other phone I have found that has the same thermal conf file is the LG G5 thread here: https://forum.xda-developers.com/lg-g5/help/reduce-gpu-thermal-throttling-help-t3471510
Seems like they were doing it for the GPU throttling however.
Let me know if anyone is having issues with this mod or wants to implement it in their rom
wow awesome. seems easy enough. I'm gonna try!
Sent from my LG-US996 using Tapatalk
---------- Post added at 05:07 PM ---------- Previous post was at 05:05 PM ----------
wonder if you could figure out a way to stop the screen on service from being dozed so hard that it lags to turn the screen on when it's sitting for like 30 seconds. so slow to turn on, can't stand it.
Sent from my LG-US996 using Tapatalk
Got it loaded. Works like a charm. A huge thank you! ???
Don't forget
Don't forget to rename the file from .txt to .conf after pasting. THANK YOU!!!!
jreed3786 said:
Don't forget to rename the file from .txt to .conf after pasting. THANK YOU!!!!
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Good point. I noticed that also. Took care of it. With a little common sense. But yes glad your telling the thread this. For many it would of caused problems.
storm68 said:
Good point. I noticed that also. Took care of it. With a little common sense. But yes glad your telling the thread this. For many it would of caused problems.
Click to expand...
Click to collapse
Anytime, buddy! Thank you for your work!
i love you
dude i made an account for the first time ever just to come here to comment and tell you that you are awesome and i love you and i just applied the fix and i'm so happy!
jayochs said:
wow awesome. seems easy enough. I'm gonna try!
Sent from my LG-US996 using Tapatalk
---------- Post added at 05:07 PM ---------- Previous post was at 05:05 PM ----------
wonder if you could figure out a way to stop the screen on service from being dozed so hard that it lags to turn the screen on when it's sitting for like 30 seconds. so slow to turn on, can't stand it.
Sent from my LG-US996 using Tapatalk
Click to expand...
Click to collapse
Haven't had that issue so not sure how to fix it. I'm using a custom rom (WETA) so I probably can't replicate it. Maybe try a different kernel?
eh I did. the one custom kernel for us996, the guy said it had faster wake but it actually didn't. lol. stupid v20.
Sent from my LG-US996 using Tapatalk
is there a way to verify these changes are in effect? I'm planning to put this into Magisk as a module, but not sure how to verify...
dimm0k said:
is there a way to verify these changes are in effect? I'm planning to put this into Magisk as a module, but not sure how to verify...
Click to expand...
Click to collapse
If you use a cpu monitoring app (cpu-z or kernel aduiter), you will see the cores don't throttle when you have the phone plugged in after applying the mod. Ampere will also report a maximum charge rate of about 1000mah when screen on.
Holyman007 said:
Let me know if anyone is having issues with this mod or wants to implement it in their rom
Click to expand...
Click to collapse
Freakin sweet! ? Came here to fix the stupid throttling but you also improved the charging speed when screen is on too. Mucho thanks!
Congrats on the XDA portal. ???
storm68 said:
Congrats on the XDA portal.
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Click to collapse
Haha thanks! I just read it. Surprised that our forum gets any love.
KUSOsan said:
Freakin sweet! Came here to fix the stupid throttling but you also improved the charging speed when screen is on too. Mucho thanks!
Click to expand...
Click to collapse
Glad it worked for you
Holyman007 said:
Haha thanks! I just read it. Surprised that our forum gets any love.
Click to expand...
Click to collapse
This Doug Lynch guy really likes to share projects.
As for this mod, I'm kind of scared at how quickly my phone is charging now...
EDIT: Lynch, not Lunch lol. Autocorrect...
Zacharee1 said:
This Doug Lunch guy really likes to share projects.
As for this mod, I'm kind of scared at how quickly my phone is charging now...
Click to expand...
Click to collapse
Lol! I call it "my charger on steroids" mod.... Good job! ?
I just want to make a point that if you are doing this mod it is highly advisable to switch to a QC 3.0 charger for your battery to maintain its lifetime. One of the reasons that this was put into place is because QC 2.0 pushes a LOT of voltage to the device to quick charge it when the screen is off and the phone is idle because there will be less overall heat generated in the device (which LG wants to avoid after the bootloop situation it can't seem to get out of). QC 3.0, which the v20 is capable of using, charges faster and cooler than its 2.0 counterpart and will be easier on your battery lifespan. A QC 3.0 charger is more efficient overall and should be going on sale soon because QC 4.0 is on the way/out now with the new Samsung devices.
And yes, you can swap this battery out if the first one won't hold a charge anymore, but the longer you keep the first one the later you have to pay for the second one (assuming you keep the phone that long). Also, you do not want the components to bake in case the v20 uses the same manufacturing technique as the 5x did.
AlkaliV2 said:
I just want to make a point that if you are doing this mod it is highly advisable to switch to a QC 3.0 charger for your battery to maintain its lifetime. One of the reasons that this was put into place is because QC 2.0 pushes a LOT of voltage to the device to quick charge it when the screen is off and the phone is idle because there will be less overall heat generated in the device (which LG wants to avoid after the bootloop situation it can't seem to get out of). QC 3.0, which the v20 is capable of using, charges faster and cooler than its 2.0 counterpart and will be easier on your battery lifespan. A QC 3.0 charger is more efficient overall and should be going on sale soon because QC 4.0 is on the way/out now with the new Samsung devices.
And yes, you can swap this battery out if the first one won't hold a charge anymore, but the longer you keep the first one the later you have to pay for the second one (assuming you keep the phone that long). Also, you do not want the components to bake in case the v20 uses the same manufacturing technique as the 5x did.
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Click to collapse
Hmm interesting. Yeah the thought of restricting the voltage to prevent any heat build up at all came to mind. I still think they overdid it with the throttling to the point where it is unusable when charging.
The thermal file can be edited so it throttles a bit or halfway which I explained in the op if anyway is worried about the heat.
Holyman007 said:
Haha thanks! I just read it. Surprised that our forum gets any love.
Click to expand...
Click to collapse
It gets some love.
Related
i just got this phone a few days ago. i love it. nothing wrong with it.
super fast and everything. im on 2.3.6. no issues. my battery lasts 12 hours easy. and actually up to 26 hours so far.
i dont even feel the need for a custom rom. at least not for now.
but one thing that makes me mad is how slow the phone charges, anyone know why this is ? it's kinda frustrating lol
any way to change this ?
also....i kinda hate that there is no camera button on the actual phone. oh well.
*Edited*
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
mrljlamon said:
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
Click to expand...
Click to collapse
If I remember correctly waiting till the battery is completely depleted is not a good thing for our batteries.
i never said completely depleted though.
and yea ive read so many reviews to not do that, and reviews that say you should... and reviews to charge it this much and that much and blah blah. may be a new phone, but none of this is new to me.
Charge current is hardware limited from what I've read. Or atleast for the time being. If your using the phone while charging it'll be significantly slower. Also using wallplug makes a difference. If you've got stuff running while charging try throttling down the CPU while charging.
Other than that I think our phone is limited to 650mah to charge. So 1650/650 is about 2.5 hours with perfect efficiency. Now take into account the power being drawn and how the chargers for li batteries work, that's about 3-4 hrs to be expected.
And don't run li batteries all the way down on a regular basis, its not good. I'm not positive on li ion batteries, but with lipo you generally want to use about %80 of rated capacity to prolong life and power of the cell.
400 mA on USB, 650 on a wall charger, CPU/screen usage counts against these limits - no way to change this
Forgot where I read it. Could be wrong too.
Slow charging for this phone was samsungs way of keeping our phones battery in shape. Hopefully prolonging the life of it. I noticed my 3GS lose about 20% of its full capacity in a couple years. Only time will tell?
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
all useful responses and all make sense. thank you guys.
i dont use it when it charges and yea it does take about 4 hours to charge.
coming from a crappy xperia x10 which took about 2 hours to charge from 0 to 100
but this phone is 10 times better even without a custom rom so i can deal.
thank you guys for ur knowledge.
jdbeitz said:
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
Click to expand...
Click to collapse
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Entropy512 said:
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Click to expand...
Click to collapse
Its still there. I have a 750mA charger and iit SEEMS to help but I don't know how to check it
Sent from my AT&T cellular device.
CurrentWidget
he removed the high ma charge back to defaults. you can still change them in voltage control but it wont do a damn thing. as entropy said 650 wall 450 misc.
My remix:
EM EYE YOU EYE
SIYAH nara to the rest, I'm rollin with the best.
SGS2 I777
Entropy512 said:
CurrentWidget
Click to expand...
Click to collapse
Does that widget only show charging current?
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Enjoy the fireworks.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Hmmm when I used to run a different widget it would report that, but not with current widget. However I'm on a different ROM now, what ROM you on?
I'm currently on the latest ICScrewed
Sent from my SGH-I777 using XDA App
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
If you are on Entropy's DD kernel you should divide that number by 2.85
Battery charge current monitoring (CurrentWidget) support - only reports charge current and not discharge, and reports a value 2.85 times the actual current. Use CurrentWidget's "operation on value" to divide by 2.85.
Click to expand...
Click to collapse
Last updated 05/02/12
I am not responsible for anything you do to your phone. If the phone dies or bricks, I blame you, it will not be my fault.
It can be different on every phone. These are what I found and tried.
Everything below was tested on i777 running Task650 AKOP(Build 4.28.12 (2nd Release) running the N.E.A.K Kernel(N.E.A.K-2.0.3xb-I777-AOSP). (Thank you guys for an awesome Kernel and Rom )
This was my first time undervolting and wanted to share sense not many people(that I know of) undervolt.
Clocking are set at ondemand between (Min)200 - (Max)1200
I started off with the stock and lowered each one by -25 till it froze. If it froze I went back up 25 and made sure it was fine. Then did the next clock.
Lets say it froze at 1000 then I changed it too 1025.
UnderVolting can give your phone longer battery life.
Also lower the heat produced by the phone.
To undervolt, you can use SetCPU or Voltage Control.
Tomorrow I will start posting battery life with everything(Screen on time, data, ect). I will have sync and everything on for the testing.
It can be different on every phone. These work fine with mine.
------------------
Later today, I will post screen shots of what undervolting can do for battery with the correct frequency's you find on your phone. Everything is on, just took of the charger at 100%.
Enjoy,
Jake
Those values may work for you, but may not work at all for others
I do wonder one thing though. If one lowers voltage, does current increase in turn to compensate for the lower voltage?
twiggums said:
Those values may work for you, but may not work at all for others
I do wonder one thing though. If one lowers voltage, does current increase in turn to compensate for the lower voltage?
Click to expand...
Click to collapse
From basic physics, voltage and current are proportional, so if one decreases (holding resistance constant) the other will also decrease; Ohm's Law, V = iR. Of course, that's for ideal and very simple circuits, so I have no idea if that law actually holds in such complex things as phones, but I don't immediately see why it wouldn't.
Sorry, I'm currently taking a basic college physics course on electromagnetism XD.
karate104 said:
From basic physics, voltage and current are proportional, so if one decreases (holding resistance constant) the other will also decrease; Ohm's Law, V = iR. Of course, that's for ideal and very simple circuits, so I have no idea if that law actually holds in such complex things as phones, but I don't immediately see why it wouldn't.
Sorry, I'm currently taking a basic college physics course on electromagnetism XD.
Click to expand...
Click to collapse
Your completely correct assuming load remains constant . However if something operates on varying voltage it'll often adjust the current to meet power req for operation I believe .. Hehe and if that's the case then UV becomes pointless :what:
Not sure how the CPUs in or phones work, but I'm sure it'd be considered "complex circuitry" vs a "simple circuit". I've asked this in a different thread before but never really got a firm answer.
karate104 said:
From basic physics, voltage and current are proportional, so if one decreases (holding resistance constant) the other will also decrease; Ohm's Law, V = iR. Of course, that's for ideal and very simple circuits, so I have no idea if that law actually holds in such complex things as phones, but I don't immediately see why it wouldn't.
Sorry, I'm currently taking a basic college physics course on electromagnetism XD.
Click to expand...
Click to collapse
I'm taking physics in hs this year lol I hate it I sucked the first half of the year and I'm only doing okay this quarter
Sent from my SGH-I777 using Tapatalk 2 Beta-5
Thanks for posting this man. Good read. Keep us updated.
Sent from my SGH-I777 using xda premium
One thing seems evident to me. I could run my device -100mv at all steppings on GB, but ICS is so much more sensitive to UVing.
Sent from my SGH-I777 using xda premium
This thread is compeletly pointless and should be deleted. No one should try and take someone elses settings for OC/UV. been this way for all of time. and if you'd have done any research, you'd probably have found this out.
No the CPU will not increase current to compensate for reduced voltage.
The transistors create most heat during switching when their conductivity isn't ideal. The resistance along the conducting path increases during on/off cycles and the voltage across this path with determine the Watts consumed by the device.
So lowering the voltage or frequency will reduce the wasted energy.
Sent from my SAMSUNG-SGH-I777 using xda premium
MotoMudder77 said:
This thread is compeletly pointless and should be deleted. No one should try and take someone elses settings for OC/UV. been this way for all of time. and if you'd have done any research, you'd probably have found this out.
Click to expand...
Click to collapse
I state that it won't work for everyone, that these work on my phone.
This helps give people a clue in how to undervolt. Once I get home I plan to make this more guide like. I don't see many detailed threads on undervolting and not many people know about it.
Sent from my SGH-I777 using xda premium
ACCUSED24 said:
I state that it won't work for everyone, that these work on my phone.
This helps give people a clue in how to undervolt. Once I get home I plan to make this more guide like. I don't see many detailed threads on undervolting and not many people know about it.
Sent from my SGH-I777 using xda premium
Click to expand...
Click to collapse
theres a reason that not many people know about it. noobs dont know what they're doing, and those that do, know not share setttings. not hard to UV, and those that find it hard, are probably best of not messing with it
I can make a guide on how to turn a vaccume into a sort of gun, but sharing it publicly is not recomended
I understand your want to help the community, and thats good.
MotoMudder77 said:
theres a reason that not many people know about it. noobs dont know what they're doing, and those that do, know not share setttings. not hard to UV, and those that find it hard, are probably best of not messing with it
I can make a guide on how to turn a vaccume into a sort of gun, but sharing it publicly is not recomended
I understand your want to help the community, and thats good.
Click to expand...
Click to collapse
Is this better? I removed my frequency's but explained myself. Think of this as a test to see results now. It also has a simple guide that isn't beating anyone with a bat.
karate104 said:
From basic physics, voltage and current are proportional, so if one decreases (holding resistance constant) the other will also decrease; Ohm's Law, V = iR. Of course, that's for ideal and very simple circuits, so I have no idea if that law actually holds in such complex things as phones, but I don't immediately see why it wouldn't.
Sorry, I'm currently taking a basic college physics course on electromagnetism XD.
Click to expand...
Click to collapse
Well as you start to involve capacitors and inductors the law becomes slightly more complex, involving real and imaginary components . the reason why the phone at lock up may be due to the capacitors and inductors. These values are very sensitive to the current in the circuit! Changing it slightly may give undesirable results. Long story short. Undervolting by small amounts will have a negligible difference in battery life. Undervolting by large amounts will screw with how the circuit was designed. So be careful!
Sources - me being an electrical engineer!
EDIT: One last thing karate made me realize, decreasing the voltage would require increase current. (Since the values of L, R, and C cannot be changed! if you guys really want to save battery just stick to underclocking, you don't know the circuit configuration and specs of the phone.
Sent from my SGH-I777 using xda premium
So does undervolting really offer no battery life savings? I've read an article on laptop undervolting offering significant battery life improvements, especially because the CPUs run at lower temps thus saving life by requiring less fan cooling. I guess that doesn't apply to phones because we don't have cooling fans, but is there really no reason to undervolt?
Also, why would underclocking offer more battery life?
Sent from my SGH-I777 using XDA
karate104 said:
So does undervolting really offer no battery life savings? I've read an article on laptop undervolting offering significant battery life improvements, especially because the CPUs run at lower temps thus saving life by requiring less fan cooling. I guess that doesn't apply to phones because we don't have cooling fans, but is there really no reason to undervolt?
Also, why would underclocking offer more battery life?
Sent from my SGH-I777 using XDA
Click to expand...
Click to collapse
Lower CPU usage= less power consumed
Sent from my SGH-I777 using xda premium
jthatch12 said:
Lower CPU usage= less power consumed
Sent from my SGH-I777 using xda premium
Click to expand...
Click to collapse
+1
I generally uc to 800mhz, and see a noticeable difference.
I've tried UV as well, but never really noticed anything significant.
Hello, guys. I know this post is awfully long, but please, bear with me
I am fairly new to Sammy, as I just got the S2 (I9100, not some other variant... it's the very original) three days ago. I rooted it, flashed CWM, and already tried a few ROMs. I'm sticking to MIUIv4 (WIUI, actually) for the moment, as I loved having MIUI on my previous devices.
There's just one thing that makes me wanna throw rocks at this phone... and that's not the Super AMOLED+ screen that has stains / ghosting effect... it's the CHARGER.
I believe the charger I'm using is original - it was in the package, so... it can't be a copy, lol. It says it can output 700mA at 5V, which is pretty standard... but it seems like it just doesn't do its job!!!
I've had three HTC devices before, and the HTC charger is just a brick that you plug into the socket, and then plug a USB cable in it (just like Motorola's and Apple's recently). It outputs 1A at 5V.
The Motorola ATRIX I previously owned had a charger that was outputting 850mA at 5.1V. Charging that 1900 mAh beast battery would take just a little over 3 hours!
I no longer own the ATRIX (sold it to get the S2, actually), but I did borrow a HTC charger (with a HTC USB cable) to see if I could charge my S2 faster. Nopes. The charger barely gave the S2 0.5 amps... which is normal, since I hear two pins must be connected in order for the Samsung phone to draw maximum power.
My Galaxy S2 is charging painfully slow with this original charger. I installed Battery Monitor Widget and let it log the battery charging overnight - the log file is attached below this post.
At the very first line of that text file, you can see the charging began. I let the phone turned on, with the screen off, to charge overnight. Wi-Fi, Mobile Data, BT, GPS, Auto-sync was off. It was just in auto 2G/3G mode. That hardly matters!
It looks like the phone is drawing 641mA constantly. It doesn't top 700mA, but that's okay - neither did the HTC phones reach more than 900mA, when the charger was able of 1A output.
It took the SGS2 exactly two hours and 50 minutes to fully charge. Given the fact that the charger outputs 700mA, and the battery is 1650mA, I'd say that's right. A 1900mAh battery was completely charged in 3 hours and something, with a 850mA output charger.
Still, that's painfully slow. I had the HTC EVO 3D, which has a 1730mAh battery. Charging that (@1A) would take little over two and a half hours. I could even browse the web via Wi-Fi or do something else on the phone and the battery would still be completely charged in less than three hours (unless I play a game on 3G with max brightness on, of course).
Also, when the battery was at 1% at lunchtime, I plugged in the charger. I continued to send text messages and browse the web via Wi-Fi (screen brightness was on minimum). The battery level did not rise from 1% even after 5 minutes! You can see that in the battery log. Yes, the phone's battery was almost dead in less than three hours.
Oh, also, the first day I got the phone, after I finished rooting and flashing MIUI and everything... I was playing Dark Legends, over Wi-Fi (screen was at lowest, again). Battery got down to 6%, I plug it into the charger. Ten minutes later, battery was down to 2% ! ! ! So, the charger cannot keep up !
I did my homeworks and did a "bit" of Google searching... it turns out the charger is just as it is. But this is just ridiculous.
-----
I remember seeing something on Twitter several months ago... an article regarding an app that would let you adjust how much power the Galaxy S2 can draw from the charger it's connected to, simply by dragging around a slider. I'm not wrong, I DID see such an article - I just can't find it anymore!
Anyone... any suggestions, please?
Also, please note that I am in Europe, Romania, so I can't just go to a shop and find the most awesome charger that outputs 2A for $5 like you guys can (there, in the US)... It's not really at hand for me, lol.
So, conclusion is the phone can consume more amps during usage than the stock charger can supply.
Either reduce the power usage (lower brightness, disable WiFi/BT) when you're using the phone during charging or get a more powerful charger (although I remember the latest stock ICS kernels don't like charging at a higher voltage than the stock charger supplies, so you'll probably have to install a different kernel which doesn't have this limitation).
Oh, and please stop the non-sense about being in Romania and not having options to buy, the market's full of all kinds of chargers. Get out of the house and search, "lol".
This is not uncommon.
In fact, with my PREVIOUS phone, the SE Mini Pro (the original one), it was actually possible to drain the battery till the phone shut down, even on it's original charger.
With some modified power settings, mostly in CPU voltages, it is quite possible to have the SII charge properly even while in use, but bear in mind, it will take longer to charge if you are using it.
VAXXi said:
So, conclusion is the phone can consume more amps during usage than the stock charger can supply.
Either reduce the power usage (lower brightness, disable WiFi/BT) when you're using the phone during charging or get a more powerful charger (although I remember the latest stock ICS kernels don't like charging at a higher voltage than the stock charger supplies, so you'll probably have to install a different kernel which doesn't have this limitation).
Click to expand...
Click to collapse
Playing Dark Legends, via 3G this time (so the power consumption would be higher, right?), screen at FULL BRIGHTNESS, Bluetooth and GPS activated. Battery Monitor Widget tells me the current being drawn is 641mA. Looks like the phone draws 641mA when charging, ~80% of the time.
The only problem seems to be when the battery level is LOW. Then, no matter what you do, the power level just doesn't rise.
With HTC / Motorola, the power draw was maximum when the battery was at its (almost) lowest level, and would decrease as the battery was filling. With the SGS2, it looks like it draws 640mA from 0% to 70%, THEN it begins to slow down.
VAXXi said:
Oh, and please stop the non-sense about being in Romania and not having options to buy, the market's full of all kinds of chargers. Get out of the house and search, "lol".
Click to expand...
Click to collapse
Oh, but trust me, I have. You know, in our country, even cheap Chinese copies are over-rated. It's hard to find stuff like what they have in the US .
I've seen some sort of a digital charger, so-to-say, which would allow you to set the amperage and voltage that was being outputted. It was able of throwing out anything from .5 to 2 amps, at 3.7 - 5.5V (given your choice). Guess what : friend got it from the States...
You don't see such stuff here, in Romania.
Oh well...
Sideromelane said:
This is not uncommon.
In fact, with my PREVIOUS phone, the SE Mini Pro (the original one), it was actually possible to drain the battery till the phone shut down, even on it's original charger.
With some modified power settings, mostly in CPU voltages, it is quite possible to have the SII charge properly even while in use, but bear in mind, it will take longer to charge if you are using it.
Click to expand...
Click to collapse
On the HTC EVO 3D and Motorola ATRIX, it was yet to be proven whether undervolting the CPU would increase battery life or not. Undervolting as much as 200mV only reduced the ammount of heat that was generated (especially during gaming sessions). Although current = heat... the power consumption didn't seem to change a bit!
I even tried to downclock the CPU to 400 MHz - power draw would still not be sufficient in order for the phone to charge (when the battery level was under 10%). Everything was turned off, light on lowest, CPU pretty low... still going down, lol.
I have also experienced this in the past.... which was rather annoying if I must say however, recently I haven't had this issue, although it still charges quite slowly, it's slightly faster than before. I noticed this difference after I decreased the voltage from the cpu in each step, yes my phone is heavy undervolted thanks to magic config, might want to check that out, but it's still as smooth as ever without a hint of lag props to the hyperdroid team...they are the best in my opinion, I use their rom since the hd2 days recommend their rom to all galaxy s2 users.
Anyway, my point is, I can have my screen in full brightness and still use the phone as is when off charge and it will continue to charge. Also, battery life isn't an issue for me anymore after undervolting, I can live with 15 hours battery life under extreme heavy usage with full screen brightness of 4-5 or more hours of screen on time....and that's with 1650mah battery. I plan to get an official 2000mah battery which will increase it's life more
Samsung Galaxy SII Xtreme ED
Xtreme Energy-Xtreme Power to Live
Impossible made Possible
shadyr25 said:
I have also experienced this in the past.... which was rather annoying if I must say however, recently I haven't had this issue, although it still charges quite slowly, it's slightly faster than before. I noticed this difference after I decreased the voltage from the cpu in each step, yes my phone is heavy undervolted thanks to magic config, might want to check that out, but it's still as smooth as ever without a hint of lag props to the hyperdroid team...they are the best in my opinion, I use their rom since the hd2 days recommend their rom to all galaxy s2 users.
Anyway, my point is, I can have my screen in full brightness and still use the phone as is when off charge and it will continue to charge. Also, battery life isn't an issue for me anymore after undervolting, I can live with 15 hours battery life under extreme heavy usage with full screen brightness of 4-5 or more hours of screen on time....and that's with 1650mah battery. I plan to get an official 2000mah battery which will increase it's life more
Samsung Galaxy SII Xtreme ED
Xtreme Energy-Xtreme Power to Live
Impossible made Possible
Click to expand...
Click to collapse
That's... impressive.
I'm using MIUIv4 (WIUI) wth Siyah v3.2.6.3 kernel. For some reason, if I undervolt even -50mV, the phone freezes :/
Formhault said:
That's... impressive.
I'm using MIUIv4 (WIUI) wth Siyah v3.2.6.3 kernel. For some reason, if I undervolt even -50mV, the phone freezes :/
Click to expand...
Click to collapse
That's.... weird. I thought siyah kernal was more undervolt friendly :/ besides, I read somewhere that not every galaxy s2 can handle undervolting whilst some can. Rather, it could be the kernal too, I use the redpill kernal provided from the hyperdroid team, it's not the best in benchmark wise but what the heck... it doesn't stop to lag, it's extremely fast and responsive, great battery life, undervolt support for further improvements... you won't even notice any slowness compared to high benchmark devices. Red pill kernal is well optimised. I use noop scheduler and conservative governor, it's amazing how redpill handles this. Try it some time. Could solve your problem.
Samsung Galaxy SII Xtreme ED
Xtreme Energy-Xtreme Power to Live
Impossible made Possible
Formhault said:
The only problem seems to be when the battery level is LOW. Then, no matter what you do, the power level just doesn't rise.
Click to expand...
Click to collapse
Just like your 48x CD burner doesn't write at 48x from start to finish, that's how the charging current is not constant; it depends on the remaining capacity, charging algorithms, etc. You're using a special case and asking too much, the solution has been given already (powerful charger and modified kernel to allow a higher charging current and voltage).
Formhault said:
You don't see such stuff here, in Romania.
Click to expand...
Click to collapse
Yes you do. I got a 1A Energizer charger which really gives 1A for less than 10$. The variable supply you're describing can be found in any proper electronics shop, try "Maica Domnului" street
VAXXi said:
Just like your 48x CD burner doesn't write at 48x from start to finish, that's how the charging current is not constant; it depends on the remaining capacity, charging algorithms, etc. You're using a special case and asking too much, the solution has been given already (powerful charger and modified kernel to allow a higher charging current and voltage).
Click to expand...
Click to collapse
Yeah, I know that. That's exactly what I'm saying. The algorithm is different on the S2, it seems.
On all HTC devices I had, the current draw was at its highest (~900mA) when the battery was near depletion, and as the battery was filling up, the current draw was slowly decreasing. On the S2, it looks like it's the other way around. When the battery is nearly empty (1%), barely 100mA are being drawn. As it fills up, near 10% or so, the current draw remains steady at ~641mA, and decreases only past the 70% point.
Good thing is, the current draw remains steady at 641mA, no matter how much I stress the phone! That's astonishing - the other day, the battery was LEAKING 600mA instead of GETTING 641mA when the simplest tasks were done (no stress, that is), during charging...
Guess the guy who had this phone before me didn't really ever charge up the battery properly He said he had an iPhone charger back at home; I told him "nevermind, keep it".
shadyr25 said:
That's.... weird. I thought siyah kernal was more undervolt friendly :/ besides, I read somewhere that not every galaxy s2 can handle undervolting whilst some can. Rather, it could be the kernal too, I use the redpill kernal provided from the hyperdroid team, it's not the best in benchmark wise but what the heck... it doesn't stop to lag, it's extremely fast and responsive, great battery life, undervolt support for further improvements... you won't even notice any slowness compared to high benchmark devices. Red pill kernal is well optimised. I use noop scheduler and conservative governor, it's amazing how redpill handles this. Try it some time. Could solve your problem.
Samsung Galaxy SII Xtreme ED
Xtreme Energy-Xtreme Power to Live
Impossible made Possible
Click to expand...
Click to collapse
The benchmarks are simply amazing; even with the CPU downclocked to 800 MHz...
I'll look for that kernel, hope it's MIUIv4-compatible. Thank you!
VAXXi said:
Yes you do. I got a 1A Energizer charger which really gives 1A for less than 10$. The variable supply you're describing can be found in any proper electronics shop, try "Maica Domnului" street
Click to expand...
Click to collapse
Everyone's talking about a specific shop down that street... and I never got to actually go there. Guess I gotta look for it... Was kind of doubting it was much of a big deal.
-----
I thought posts made within a specific time range were supposed to merge... That obviously didn't happen. Sorry for the multi post
Hi guys, this is something that keeps me up at night. The recent software update was supposed to make performance of the Moto Z better, and in actual daily usage I find nothing to complain about, but when it comes to benchmarks it's a whole different story, I have the uk version by the way. To be frank, I used to get about 129 000 in antutu, which is pretty low to start with, and now it's down to 126 000, geekbench is lower than you would expect from this phone too, at about 1350 single core and 3810 multicore. So basically I started this thread as a place where we could share our benchmark results and discuss them, because I have a feeling I just got an unlucky unit, because it also gets real hot real fast (up to 60 degrees celcium), and I can't make it last for more that 4 hours of screen on time, and I'm really not a heavy user. I just feel strange about this phone, because I love everything else about it, and it’s good that I do, because resale value on these things is beyond awful, tried to sell it for 500 bucks for months with no success.
Benchmarks mean abso-farking-lutly nothing. If they are keeping you up any night, you have a mental issue. I suggest you see a shrink.
Sent from my XT1650 using Tapatalk
PiousInquisitor said:
Benchmarks mean abso-farking-lutly nothing. If they are keeping you up any night, you have a mental issue. I suggest you see a shrink.
Sent from my XT1650 using Tapatalk
Click to expand...
Click to collapse
Well, there is no reason to be so toxic my friend, my main concern is that I may be the only one here with such a low score, and since the score got even lower after some time that could mean I may have a defective device, and that would be a real problem to keep me up at night.
I don't think there's a problem with your unit, 4 hours screen on time sounds normal without the battery mod on. That drop in benchmark score isn't very significant unless it continues to drop dramatically. I have the UK model too, and it is underclocked by default to 1.8GHz. You could try the Turbo Z kernel to improve it
Also mine gets really hot fast when using Daydream VR or anything intensive but 60 °C isn't dangerous for the SD820. (You could check battery use in settings incase something is keeping your phone awake.)
Geekbench 4:
Single core 1369
Multi core 3779
Seems benchmarks are pretty similar. I'm on rooted Android N but stock kernel so same as yours.
HelloMoto777 said:
Well, there is no reason to be so toxic my friend, my main concern is that I may be the only one here with such a low score, and since the score got even lower after some time that could mean I may have a defective device, and that would be a real problem to keep me up at night.
Click to expand...
Click to collapse
The only benchmark that matters is the one between your ears. And according to you, it passed.
in actual daily usage I find nothing to complain about
Click to expand...
Click to collapse
All others are a waste of time.
Sent from my XT1650 using Tapatalk
supacrazyguy42 said:
I don't think there's a problem with your unit, 4 hours screen on time sounds normal without the battery mod on. That drop in benchmark score isn't very significant unless it continues to drop dramatically. I have the UK model too, and it is underclocked by default to 1.8GHz. You could try the Turbo Z kernel to improve it
Also mine gets really hot fast when using Daydream VR or anything intensive but 60 °C isn't dangerous for the SD820. (You could check battery use in settings incase something is keeping your phone awake.)
Geekbench 4:
Single core 1369
Multi core 3779
Seems benchmarks are pretty similar. I'm on rooted Android N but stock kernel so same as yours.
Click to expand...
Click to collapse
Thank you for your comforting and friendly reply, in battery settings Android OS, Android system, and phone idle are on top when I'm not using the phone actively, I've had laughable results sometimes, like yesterday I had 30 percent battery left with only about an hour of screen on time, again no gaming involved, but this usually happens when I'm moving around, if I stay at home and nothing happens to the phone it usually won't drain battery like that. I think the reason the phone gets hot easily is obviously because of how thin it is, for example, when I keep it in the pocket it's just as hot as my body tempreture, since it just absorbs heat that easily, but has a hard time getting rid of it.
HelloMoto777 said:
Thank you for your comforting and friendly reply, in battery settings Android OS, Android system, and phone idle are on top when I'm not using the phone actively, I've had laughable results sometimes, like yesterday I had 30 percent battery left with only about an hour of screen on time, again no gaming involved, but this usually happens when I'm moving around, if I stay at home and nothing happens to the phone it usually won't drain battery like that. I think the reason the phone gets hot easily is obviously because of how thin it is, for example, when I keep it in the pocket it's just as hot as my body tempreture, since it just absorbs heat that easily, but has a hard time getting rid of it.
Click to expand...
Click to collapse
You're welcome. If you click on the graph you can see the awake time too, lately something has been keeping mine awake and draining the battery too. Not sure what it is yet, but if yours is getting really bad screen on time it could be similar. Likely an app running in the background keeping the phone awake which would heat it up more and drain the battery. There are wake lock detection apps that claim to be able to tell you which is causing this.
As you can see it's awake for long periods of time when the screen is off, and it really shouldn't be. Hope this helps :good:
Hello guys,
So the other day I was messing with thermals and I flashed a thermal that basically removes entire thermal throttling. Because of that, I was able to charge my phone at 33wat constantly for about 20 mins. The charging speed was super awesome, but I'm wondering is it safe to do so constantly? When I was back on stock settings, the charge speed would randomly fluctuate b/w 10-18 watt but with no throttling it just constantly remains on 33watt.
So again is it safe to keep charging my phone on these higher voltages constantly?
alifarhad said:
Hello guys,
So the other day I was messing with thermals and I flashed a thermal that basically removes entire thermal throttling. Because of that, I was able to charge my phone at 33wat constantly for about 20 mins. The charging speed was super awesome, but I'm wondering is it safe to do so constantly? When I was back on stock settings, the charge speed would randomly fluctuate b/w 10-18 watt but with no throttling it just constantly remains on 33watt.
So again is it safe to keep charging my phone on these higher voltages constantly?
Click to expand...
Click to collapse
Not knowing enough about this, I'd assume it's not safe and that heating of the battery would be the issue and would lead to your battery being cooked over a series of charging cycles, but I see your point temperature was not excessive (34°) - I'd advise using an app to record moment by moment charging temperature
Assuming you didn't have your phone in a pool of cooled mineral oil during charging I'd assume that you've just become a test pilot. Let us know what happens... [consider also the possibility that your house might burn down]
thesoupthief said:
Not knowing enough about this, I'd assume it's not safe and that heating of the battery would be the issue and would lead to your battery being cooked over a series of charging cycles, but I see your point temperature was not excessive (34°) - I'd advise using an app to record moment by moment charging temperature
Assuming you didn't have your phone in a pool of cooled mineral oil during charging I'd assume that you've just become a test pilot. Let us know what happens... [consider also the possibility that your house might burn down]
Click to expand...
Click to collapse
OK thanks for your insights. Yes I did some research on my own. Particularly from battery university (yes that's a thing, a whole website..) and I learned that as long as your battery temp doesn't hit 50c you can do whatever you want because in the end your phone only ever draws enough power that its circuitry was designed for. So that information was enough for me to continue my journey into hotter waters.
So far, during charging from 49% to 80% my poco only took about 17 mins to reach there and right when it reached 80c that I saw it start to throttle a bit so by the time it was 82, the watts came down to 25-28 range. So I guess that's hardware throttling in effect since I have already got the software ones removed? And anyway during these 17 mins, while the ambient temp at my place was 32c, the battery temp soared as far as 43c. I believe I would frequently hit the same temp even when I had all thermal enabled running on stock setup. So we can safely rule out that it didn't happen because of not having thermals but just because the ambaint + charging had their own way.
Lastly, I would continue doing this for few more days checking under air-conditioned room next and see how it goes. For now I'm sticking with 20-80 battery rule because that's supposed to be the safest thing in the world of li-on batteries.
Normally quickcharge will keep stuff safe so it will adjust accordingly.
If temps would get over 40-45 deg. c. over a long time it would take a hit on the 'life' of the cell.
Charging slow and between a range of 10 and 90% will help cell life for sure.
what kind of adapter were you using to get 33 watts? most i've seen on my phone is 22 or something watts
also, what font is that if you don't mind me asking
mine does 33 watts too ??
MinBCrafter said:
what kind of adapter were you using to get 33 watts? most i've seen on my phone is 22 or something watts
also, what font is that if you don't mind me asking
Click to expand...
Click to collapse
Stock adapter that comes with box. And font is from IOS. Available in handy magisk model. Search inside magisk manager.
MinBCrafter said:
mine does 33 watts too ??
Click to expand...
Click to collapse
Yep its 33watt as shown. What's your Rom + kernel setup?
alifarhad said:
Yep its 33watt as shown. What's your Rom + kernel setup?
Click to expand...
Click to collapse
Pixel Experience w/f2fs (7/22/2019) + Optimus Drunk kernel latest
MinBCrafter said:
Pixel Experience w/f2fs (7/22/2019) + Optimus Drunk kernel latest
Click to expand...
Click to collapse
Whats the deal about f2fs I keep seeing this pop every once in a while but never got enough details on it. Since you are using it, can you educate me what it's and does it even make any difference?
alifarhad said:
Whats the deal about f2fs I keep seeing this pop every once in a while but never got enough details on it. Since you are using it, can you educate me what it's and does it even make any difference?
Click to expand...
Click to collapse
It's a file system for android, and yes it does make quite a decent (not like huge) difference when you load up apps (f2fs is usually used in the /data partition) basically apps open faster and it makes the phone feels snappier.
alifarhad said:
OK thanks for your insights. Yes I did some research on my own. Particularly from battery university (yes that's a thing, a whole website..) and I learned that as long as your battery temp doesn't hit 50c you can do whatever you want because in the end your phone only ever draws enough power that its circuitry was designed for. So that information was enough for me to continue my journey into hotter waters.
So far, during charging from 49% to 80% my poco only took about 17 mins to reach there and right when it reached 80c that I saw it start to throttle a bit so by the time it was 82, the watts came down to 25-28 range. So I guess that's hardware throttling in effect since I have already got the software ones removed? And anyway during these 17 mins, while the ambient temp at my place was 32c, the battery temp soared as far as 43c. I believe I would frequently hit the same temp even when I had all thermal enabled running on stock setup. So we can safely rule out that it didn't happen because of not having thermals but just because the ambaint + charging had their own way.
Lastly, I would continue doing this for few more days checking under air-conditioned room next and see how it goes. For now I'm sticking with 20-80 battery rule because that's supposed to be the safest thing in the world of li-on batteries.
Click to expand...
Click to collapse
But, how long does it take to reach 49% from 0% or from 20% as you say you follow the 20-80 rule?
Removing thermals is not a good idea, I'm not an expert but I get more fluid experience playing CODM , capping the max speed of all proccesors to 1.7ghz , and keep the phone charging at low voltage. I can play for hours at 60fps and the battery never hits 44c. Removing thermals and processor's cap, I would have a great 15 minutes of game and then it would be very hot and hardware throttle, to the extreme of even get only 20 frames /sec or even less.
All that heat is bad for battery and the components. The battery will go bad faster, inflating in worst cases, and the IPS panel can get permanent ghosting. I know this from previous devices poco included. I do gaming for hours. Removing thermals + gaming at high brightness is bad.
unrafa said:
Removing thermals is not a good idea, I'm not an expert but I get more fluid experience playing CODM , capping the max speed of all proccesors to 1.7ghz , and keep the phone charging at low voltage. I can play for hours at 60fps and the battery never hits 44c. Removing thermals and processor's cap, I would have a great 15 minutes of game and then it would be very hot and hardware throttle, to the extreme of even get only 20 frames /sec or even less.
All that heat is bad for battery and the components. The battery will go bad faster, inflating in worst cases, and the IPS panel can get permanent ghosting. I know this from previous devices poco included. I do gaming for hours. Removing thermals + gaming at high brightness is bad.
Click to expand...
Click to collapse
Um, you don't just remove thermal limitations and charge like yesterday.
That is useless and in some cases counter-intuitive.
You highly decrease the temperature to 14 degree Celsius to 26/28 Degree Celsius and charge in that.
However as you say, if you're doing high intense activities that use a lot of hardware, which generally heats the phone, then having a heated phone for extended periods of time *might* be bad for the battery, well having any electronic device heated is bad for the internal circuitry. I have a personal experience with this.
That said, as long as you're using your phone for mild to medium intensity activities like watching multi-media applications and surfing, calling, etc removing thermals will have no significant issues and not reduce the battery life because your phone is mostly never going above 35/36 degree Celsius.
Or if you can, remove thermals whenever you're charging and put them back on whenever you're not.
what
alifarhad said:
Hello guys,
So the other day I was messing with thermals and I flashed a thermal that basically removes entire thermal throttling. Because of that, I was able to charge my phone at 33wat constantly for about 20 mins. The charging speed was super awesome, but I'm wondering is it safe to do so constantly? When I was back on stock settings, the charge speed would randomly fluctuate b/w 10-18 watt but with no throttling it just constantly remains on 33watt.
So again is it safe to keep charging my phone on these higher voltages constantly?
Click to expand...
Click to collapse
what app is that?
Fgacko said:
what
what app is that?
Click to expand...
Click to collapse
FKM. Franco Kernel Manager.
shivy25 said:
FKM. Franco Kernel Manager.
Click to expand...
Click to collapse
ah, thanks