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Anyone has any idea why do we need to turn on "disable usb charging" ?
Settings -> Power -> Advanced
[ x ] When device is turned on, do not charge the battery when connected to the PC
In what situation?
One thing that I can think of ... is to preserve the battery to have a good condition by only charging if you have "enough time". That means, to charge until 100% and beyond.
Any more valid / good reason?
Thanks.
gogol said:
Anyone has any idea why do we need to turn on "disable usb charging" ?
Settings -> Power -> Advanced
[ x ] When device is turned on, do not charge the battery when connected to the PC
In what situation?
One thing that I can think of ... is to preserve the battery to have a good condition by only charging if you have "enough time". That means, to charge until 100% and beyond.
Any more valid / good reason?
Thanks.
Click to expand...
Click to collapse
In my case, i thin is better to make three or four completes cycles of charge/discharge, so for the moment i use this option to prevent charging while i connect to PC to install or trasfer something....after complete discharge, i charge full...
Regards.
Hi,
It's probably to preserve Laptop/Notebook battery when on the go...
alexxo said:
Hi,
It's probably to preserve Laptop/Notebook battery when on the go...
Click to expand...
Click to collapse
Yes, this is another one.... i don't have a laptop so i don't think in it
I reckon its so you can plug it into a unpowered USB hub which is near its limit of how much power it can supply...
g
charging
i think it might have something to do with the amps/volts, i'm not a scientist as you could already tell, but i do know that you shouldn't use a motorola charger to charge an htc product. i used a razr charger to charge my dash once and it killed the battery pretty well. so i figure you shouldnt use a non-approved charger to charge your device, be it via laptop or any other charger that didnt come in the box
My bet is that this is about battery life. I think that these batteries do best (live longest) if they go through complete charge-discharge cycles at least every 30 days.
I plug my TyTn into my computer when I am in the office and, unlike ACtiveSync, the charge always works!
I vote for the portable use theory as well, so you don't drain the battery on a laptop or unpowered hub that can't supply the additional current.
RemE said:
I vote for the portable use theory as well, so you don't drain the battery on a laptop or unpowered hub that can't supply the additional current.
Click to expand...
Click to collapse
I'm with you on this one. Current gen batteries don't need to be cycled so much for optimal performance. However, charging your phone via USB will drain your PC's battery more quickly if you are on the go.
The Kaiser draws a lot of current. Even when charging by USB I have seen the battery level dropping.
I have seen quite frequently USB ports being disabled due to too high current draw, making the connection unstable. If this was a problem this option would prevent it.
Surur
quite a few posts here about li-ion batteries and how best to look after them:
http://www.modaco.com/Warning-Battery-Chargin-t233233.html
That's good stuff especially the Wiki on them. I use a lot of lithiums at work and play. Bottom line, don't run them flat, ever, that's the only thing that will ruin them quickly. Most devices have protection circuitry to prevent this by shutting down. When you get to this point the battery should be charged ASAP because the small amount of drainage in the device will take the battery past the critical low point if left in this very low state for any length of time (say more than a few days).
Cycling really doesn't do much for lithiums, their total capacity decreases from date of manufacture slowly over time, weather you use them alot or not. This is unlike other batteries.
Best storage state for lithiums is 50%, not full. But in a phone, best rule is to just top them up whenever possible, plus you never know when you are going to get that marathon phone call
As a few others have alluded to, this is used when you're tethering on the go. WM5 / 8525 doesn't have this switch, so when tethering via USB on the 8525, it will literally suck the life out of my laptop battery.
Glad to hear that this switch was added in WM6 / Kaiser.
The best battery information I found is here: http://www.batteryuniversity.com/parttwo-34.htm
Summary (for li-ion batteries, as in Kaiser):
1. Avoid full discharge; partial discharge/charge cycle is better. However, a full charge/discharge cycle once every 30 times is useful to keep battery gauge calibrated correctly (doesn't really help longevity, but prevents erroneous gauge from forcing early retirement of the battery).
2. Avoid prolonged storage at full charge and/or high heat (optimal charge is ~40%).
3. Avoid high rates of charge or discharge. Presumably the charge rate is already set at an acceptable rate by the manufacturer; as for discharge, it probably can't be helped if you need to run some ultra-high load applications on the phone. One thing this confirms: it is good to charge the battery using the USB; the possibly lower voltage available during the USB charge is helping, not hurting, the battery. So definitely, the "do not charge when plugged in" option is only to save your laptop battery, not to help the phone battery.
As said already in this thread, its so you can connect to a non-powered usb hub or a laptop usb port that can't supply enough.
WM devices normally detect supplied power and go into charge mode before they are polled by the PC/Laptop via Activesync for data transfer. If the charge system pulls the port down then data transfer is disrupted.
When tethered to a laptop and the laptop is running on battery, you may want to disable charging to conserve the laptop's battery.
This is the answer I got from batteries4less where I bought a replacement battery for my 8525.
You should generally charge your battery every night. It is not good to do
it continually during the day. It will wear it down faster. Thank you
Alix Kane
CBW Customer Service Rep.
Cellphone Battery Warehouse
www.batteries4less.com
1800-300-9993
Click to expand...
Click to collapse
By the way.....shameless plug: I ordered a battery late on thursday afternoon and received my replacement battery on saturday and installed it in the phone. On monday I bought the Tilt 8925 and then emailed that I bought a new phone and asked them if I could exchange it for a Tilt 8925 battery and the next email I received from them about an hour or so later said the new battery was on the way and to send the 8525 battery back in that package.
These guys will get my battery business from now on.
Years ago i had a t-mobile dash also known as an htc excalibur, and i would use it to tether to my computer for 6 to 8 hours a day as a high speed modem and low and behold, it burnt out the battery. I bought a new battery and switched to Kaiser OS that had an option to disable usb charging and never had a problem after that... Now if you only connect to a computer to transfer a few files back and forth every onle in a while then there probably wont be a problem because that is not going to drain your battery very fast so it will only charge every once in a while and that is ok. But when you tether to a computer to use your phone as a high speed modem it takes ALOT of battery power. I saw a post in a different thread here on xda that said that when your battery reaches 100% that it stops charging. Yes that is correct. But even though the battery will stop charging at 100%. As soon as it drops 5 or 10 % is starts charging again and when you tether your phone as a modem it will drop 5 or 10% within minutes so your phone will basically be charging nonstop which is defiantly not good for a battery and that my friends is what the disable usb charging is for.
Just as an added statement for those of you that disagree with what i have said. Try it yourself and see what happens. Tether your phone to your computer as a modem and surf the net, and play games, and download stuff for 6 or more hours a day. I bet in just a few weeks or months you will be replacing your battery too.
Reason to turn off phone charging when connected to PC
I installed "Syncois iOS & Android Manager FREE" to back up my Android phone data to my PC. The program would not work if my phone was charging when connected to my PC, it told me. So, I had to turn that charging option off. Outside of that, I will always have my phone charge when connected to my PC. Hope this helps!
My Diamond won't charge to full capacity! I tried to charge it overnight two times and the first time my telephone charged it was 70 procent charged after 1 night. (7/8 hours) and the second night (5/6 hours) with the same percent when i woke up. I had it once 100% but after installing hardSPL and the hardreset it drop instantly to 40%. (i just installed that , and nothing more.)
Connected the telephone to the charger again and i've got a full lit led ring. After turning the device on the ring went 'charging' again. The capacity was 75%. In windows.
kenny89 said:
My Diamond won't charge to full capacity! I tried to charge it overnight two times and the first time my telephone charged it was 70 procent charged after 1 night. (7/8 hours) and the second night (5/6 hours) with the same percent when i woke up. I had it once 100% but after installing hardSPL and the hardreset it drop instantly to 40%. (i just installed that , and nothing more.)
Connected the telephone to the charger again and i've got a full lit led ring. After turning the device on the ring went 'charging' again. The capacity was 75%. In windows.
Click to expand...
Click to collapse
Definatly sounds like a faulty cell in your battery
At least its not the phone thats broken, a battery is easily replaced.
I also have a strange battery issue! Mine won't charge if the Diamonf is switched on.
The Battery only will charge if I switch the Touch Diamond OFF, If it’s turned off, not only the display. With Running OS, when I plug the AC adaptor, it only show few seconds the charging breathing LEDs and then stops, the indicator also doesn’t show the charge symbol but the full charged battery instead but the LED indicator is not full white as it should be in full charge state and the battery of course drains down… I’ve tested with another AC adaptor, another USB charger, even car charger (I have the HTC original one), still the same behaviour.
Could this be related to the developer HardSPL? I also have this behaviour after that installation... weird
Any kind of help would be appreciated!
Its unlikely its the hardspl. I would guess hardware issue, but if it charges while off then thats unlikely too.
I assume you've tried a hard reset already to rule out any application interferring with it?
Also what happens when you plug into your PC? same thing?
My best guess at this stage with most likely at the top:
1) Software issue - try hard reset
2) Battery issue - try another battery, or once fully charged look for a big drop in battery very quickly. There are some battery manager/monitors you can download which can monitor the voltage for you. If you can show me the drop in voltage of the battery i can conclusivly tell you if the battery has a fault.
3) Hardware issue with the phone - that would just suck!
update: Replaced my battery and charged it through the adapter, full 100%.But here's something that is stranger... I installed the battery in another diamond and that battery indicator was 100% full..
I hope that it was a battery problem, because i had so much troubles with the diamond so far! The new battery is lasting much longer, it's been 6hours and it didn't even lost a bar. (still 100%)
kenny89 said:
update: Replaced my battery and charged it through the adapter, full 100%.But here's something that is stranger... I installed the battery in another diamond and that battery indicator was 100% full..
I hope that it was a battery problem, because i had so much troubles with the diamond so far! The new battery is lasting much longer, it's been 6hours and it didn't even lost a bar. (still 100%)
Click to expand...
Click to collapse
A fully charged cell has about 4.3v across it. As its drained of current the voltage drops to about 3.3v, when its fully depleted.
The phone uses this voltage level to display the current capacity of the battery
If a cell fails in the battery, as its capacity reduces its not able to provide enough current. Power = current x voltage
If the phone tries to draw normal current, the voltage drops excessivly to conserve the above formula. This shows in the phone as a decrease in battery capacity. The voltage across the battery drops to below 3.3v before the remaining cells are depleted, and although there is still enough current to suply the phone, there isnt enough voltage. Overall there isnt enough power (P=IV)
A rested battery may show enough voltage for a short while (when you first put it in) but the voltage will drop drasticly as soon as any significant current is drawn.
This is a really common failure in a bettery, and you can spot it very quickly when you see sharp drops in the battery meter.
someone1234 said:
I
Also what happens when you plug into your PC? same thing?
Click to expand...
Click to collapse
Yes, same thing...
My best guess at this stage with most likely at the top:
1) Software issue - try hard reset
Click to expand...
Click to collapse
Don of course and even reflashed without installing any application, just synced with PC... same issue. In the mean time I even reflashed the stock SPL to try... and the Diamond is now charging in Off modus, so I'll turn it on tomorrow to give it a trial
2) Battery issue - try another battery, or once fully charged look for a big drop in battery very quickly. There are some battery manager/monitors you can download which can monitor the voltage for you. If you can show me the drop in voltage of the battery i can conclusivly tell you if the battery has a fault.
Click to expand...
Click to collapse
I guess the Battery has an issue, but none is available quickly in my country, I'll have to try to order one abroad... let's check...
Thanks anyway for your advices...
I flashed my TD from 1.37.081 to 1.37.707.1 today and my battery went to 30 percent and not long after it wend dead again.
But there's something strange that i've discovered today.. my charger charges my phone really slow (with original cable and charger) but with the 3rd party adapter i charged todat (adapt htc, specifications are the same of the original adapter) it's normal and my phone doesn't warm up ( max 20 degrees celcius) so much as with the HTC adapter (40 or more degrees celcius?).
I flashed my TD from 1.37.081 to 1.37.707.1 today and my battery went to 30 percent and not long after it wend dead again.
But there's something strange that i've discovered today.. my charger charges my phone really slow (with original cable and charger) but with the 3rd party adapter i charged todat (adapt htc, specifications are the same of the original adapter) it's normal and my phone doesn't warm up ( max 20 degrees celcius) so much as with the HTC adapter (40 or more degrees celcius?).
Check the current on the 3rd party charger.
kenny89 said:
(adapt htc, specifications are the same of the original adapter)
Click to expand...
Click to collapse
output 5V/1A , same specs. input is a little different (110-220hz, 0,2A) against (110-220hz, 0,15A).. but that isn't a problem right? The output is the same.
Thats really strange. Yeah its the output that matters,
There should be no difference at all!
Yeah.. my Touch Diamond is f**** up as h****.. that's not only the problem. I used some GPRS today and my phone makes noises just like when you put a telephone next a speaker and it receives sms/calls. That's when i'm surfing on the web :O!
On top of that, my speaker quits after x seconds/minutes and doesn't make any sound at all and then works after x seconds/minutes. But it doesn't work after x seconds in the Touch Flo mp3player. So my ' precious diamond' is pretty worthless right now.
XzaniX said:
I also have a strange battery issue! Mine won't charge if the Diamonf is switched on.
The Battery only will charge if I switch the Touch Diamond OFF, If it’s turned off, not only the display. With Running OS, when I plug the AC adaptor, it only show few seconds the charging breathing LEDs and then stops, the indicator also doesn’t show the charge symbol but the full charged battery instead but the LED indicator is not full white as it should be in full charge state and the battery of course drains down… I’ve tested with another AC adaptor, another USB charger, even car charger (I have the HTC original one), still the same behaviour.
Could this be related to the developer HardSPL? I also have this behaviour after that installation... weird
Any kind of help would be appreciated!
Click to expand...
Click to collapse
Check your settings: settings > power > checked off the "when device is turned on, do not charge...." ?
kenny89 said:
Yeah.. my Touch Diamond is f**** up as h****.. that's not only the problem. I used some GPRS today and my phone makes noises just like when you put a telephone next a speaker and it receives sms/calls. That's when i'm surfing on the web :O!
On top of that, my speaker quits after x seconds/minutes and doesn't make any sound at all and then works after x seconds/minutes. But it doesn't work after x seconds in the Touch Flo mp3player. So my ' precious diamond' is pretty worthless right now.
Click to expand...
Click to collapse
That noise is caused by a harmonic of the GSM signal. It sounds like the grounding is not correct, either for the speaker or possibly a whole section of the circuit.
Not good!
I have the same thing - battery left on overnight does not result in 100% indication. Yet it often creeps up much higher after I have removed the charger! Have come to the conclusion that it is a software problem - terminal voltage tests OK.
bakman said:
Check your settings: settings > power > checked off the "when device is turned on, do not charge...." ?
Click to expand...
Click to collapse
-hi Bakman, of course this was my first check Anyway, is getting worse, now it even won't charge when switched off So I'll send it for repair I guess... I hate to wait for a new device, pay a huge amount of money for it and when you finally get it, it's defective
robinbb said:
I have the same thing - battery left on overnight does not result in 100% indication. Yet it often creeps up much higher after I have removed the charger! Have come to the conclusion that it is a software problem - terminal voltage tests OK.
Click to expand...
Click to collapse
Same issue here. When charging the phone while it's *on*, it results in the indicator stopping at 75%-80%, no matter how long I charge.
I think once when charging through PC/USB, this did not happen and the battery did charge to full.
A soft reset results in the indicator displaying 100% battery however.
So is this a battery problem, or software/hardware problem?
Ildefonse said:
Same issue here. When charging the phone while it's *on*, it results in the indicator stopping at 75%-80%, no matter how long I charge.
I think once when charging through PC/USB, this did not happen and the battery did charge to full.
A soft reset results in the indicator displaying 100% battery however.
So is this a battery problem, or software/hardware problem?
Click to expand...
Click to collapse
Sounds definately like a s/w problem to me, they will have to provide a fix in a ROM update I guess. Mine is OK at the minute though. Is yours UK or grey import?
Err, I bought the WWE version in Holland. Actually someone bought it for me, but that's not the point.
I did find out that using the advanced config tool to disable the setting "GPRS auto attach" really saves a lot of battery power! Yesterday my phone was idling the whole day and night, and battery only dropped 10-20%.
Hey guys.I just got my Xperia X1 and I noticed that even if I charged my phone to 100% after I unplug the cable (I use my USB cable to charge it) that battery meter goes to 95% the second I unplug it.If I send a text or two it will go lower.By the end of the day it will be around 50-60% left.I tried looking for a fix about that but nothing came up.
Is that a common problem for the X1?BTW the phone is brand new and the battery is the original one that came with the phone.
Thank you in advance
First I think you must charge your (new?) battery at least ten times to get full capacity. Secondly I think I remember there's a way to calibrate the battery. Look in settings or even better the manual or perhaps best, search the forums.
GL,A.D
Thank you for your answer.I checked the forum but not much came up about recalibration.I checked the phones settings and I can't find anything about batery calibration
are you on a stock rom or a custom one?
also if you leave your xperia plugged in once it reaches 100% i believe it simply stops charging, so the moment you unplug it you "real" battery percentage!
No I am using a custom ROM.I always unpluged the phone when it says full next to the battery metter.
thats why I don't like charging via USB - it's unreliable and slow, always was
if someone knows how to solve that with a recalibration pls tell
I think its a problem of usb charging. I get this problem when I charge my phone with usb. I havent had this problem on charger. Maybe you usb is a bit lower voltage, so the battery isnt fully charged, but its not charging anymore so the percentage is set to 100% and rapidly decreases after short usage.
I think if you use a charger and do charge your batter a few times full with charger, the memory effect should go away.
Just correcting lpgsk, it's not the voltage, but the electric current of the USB. If I'm not wrong the charger has a 500mA current.
charger output 700mA @ 5v
My suggestion is, if you have to charge it on USB, you should charge it when its off. The charging current should he higher since part of the energy wont be used to keep mobile standby. Therefor it should be able to get more power to battery.
2nd option, buy USB mini Y-cable. It is 1 miniUSB -> 2 USB cable. So you put the other end to 2 USB slots for more power.
like this:http://cgi.ebay.co.uk/USB-A-Male-to-Mini-5-Pin-Y-Cable-for-external-hard-Disk_W0QQitemZ330414581897QQcmdZViewItemQQptZUK_Computing_USB_Cables?hash=item4cee3e6889
this could help, but no waranty it would
al3x3y said:
Thank you for your answer.I checked the forum but not much came up about recalibration.I checked the phones settings and I can't find anything about batery calibration
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Click to collapse
It must have been my memory who failed me this time. I can't find any way to calibrate battery either. Sorry for that!
Saw that you're running on a custom rom so I guess the phone is not brand new. Question raised is, how old is the battery?
Searched Ebay for whatever to my x2 and found the batteries (same in X1/X2) damn cheap (fakes or not). Why not buy a new battery and test?
Avarell_Dalton said:
It must have been my memory who failed me this time. I can't find any way to calibrate battery either. Sorry for that!
Saw that you're running on a custom rom so I guess the phone is not brand new. Question raised is, how old is the battery?
Searched Ebay for whatever to my x2 and found the batteries (same in X1/X2) damn cheap (fakes or not). Why not buy a new battery and test?
Click to expand...
Click to collapse
Hey there.The phone was brand new when I got it.It came with the standard WM 6.5 I just installed a new ROM.I tried charging via the wall charger and it seems that the battery lasts WAY longer then charging throw the USB cable.
Thanks a lot guys
PS:One thing (has nothing to do with the battery but I don't want a new thread for that).All my received text messages are with a different time then my phone.I would say around 3-5 hours difference.I searched online and I found more people with this problem but I cannot find a fix for it.Any suggestions?
Thanks again to all of you that answered
Anyone??!!
phone says 100% but says 80% when off charging
Tried:-
1. 2 different battery callibration apps
2. charging 100%, depleting battery. repeated process a couple of times
3. Switched to Stock (Rooted), 2 Custom ROMs (Waited till it was 100% on both on and off before flashing)
Notes:-
1. Battery seems perfectly fine (takes a while before depleting and doesnt deplete before 0%)
Currently using stock rooted
l would start with replacing the cable and charger to make sure you are getting a full charge. Then monitor the usage time on your phone over a few weeks and see if the time to empty is getting less that is a sure sign of a bad battery
Recheck with another fast charger. Generally, we cannot say if is a faulty cable or you have an faulty adapter. I hope the device chargeboard is not shot/motherboard driven related issue. Also, have you recovered the device using Samsung Kies- Emergency firmware recovery?
gmfirebird said:
l would start with replacing the cable and charger to make sure you are getting a full charge. Then monitor the usage time on your phone over a few weeks and see if the time to empty is getting less that is a sure sign of a bad battery
Click to expand...
Click to collapse
I did try that and surprisingly an apple charger's ETA is 2hrs
I have like 3 fast chargers and they all ETA 6hrs
volcanojax said:
Recheck with another fast charger. Generally, we cannot say if is a faulty cable or you have an faulty adapter. I hope the device chargeboard is not shot/motherboard driven related issue. Also, have you recovered the device using Samsung Kies- Emergency firmware recovery?
Click to expand...
Click to collapse
I tried - original cable with original charger 6hr
- original cable with apple charger 2hr
- different cable with original charger 1.30hr
- different cable with apple charger 2hr
(Used different fast chargers too, same results)
I tried a smart switch recovery. Same conclusion which makes me think its a hardware issue
3zozHashim said:
I tried - original cable with original charger 6hr
- original cable with apple charger 2hr
- different cable with original charger 1.30hr
- different cable with apple charger 2hr
(Used different fast chargers too, same results)
I tried a smart switch recovery. Same conclusion which makes me think its a hardware issue
Click to expand...
Click to collapse
With original charger it takes 6hrs!!! Holy ****
I think its a usb port problem for sure.. Do one thing while connected to the charger go to device maintenance and open battery menu and see if it say charging via AC or USB if while us8ng the original charger it shows Chaging via USB then certainly its the port that has gone faulty..
Hit thanks if helped
Hello everyone! Though its not the right place to ask the question but I have been seeking solution to my problem from months. Long time before, my Galaxy Note II started to behave differently. Whenever I charged it completely, the phone worked normally till 75% to 80% and all of sudden a =low battery warning indication appears and phone proceeds to shut down. I tried changing ROM and calibrating the battery again but nothing worked. Finally I replaced the battery with a new one and also clean flashed another ROM in a hope to see if the problem is gone or still there. But to my surprise the problem is still intact. Now, when I turn on the phone the battery is 90% and when I keep using it, it drains normally, but as soon it reaches round about 80%, it turns off randomly. When I turn the phone back on the battery is still at the same percentage level at which is turns off. I believe there is not an issue with the battery. Please help me what to do, I am using TWRP recovery that doesn't gives the battery stats wipe option too. Should I flash a new ROM again? I would greatly appreciate if someone please helps me in sorting this problem.
What I have already done!
1. Replaced the battery
2. Changed the ROM
3. Re-calibrated the battery
3zozHashim said:
I have this weird issue thats been bugging me for a while now. The phone says 100% when im on it but when i power off and charge, it says 86%.
Click to expand...
Click to collapse
I have noticed the same issue, I think. I suspect it is a general bug.
Guys, try charging your phone while in Android. When it reads 100%, switch off your device. Either leave the charge cable attached or reattach it after you have switched off. Now wait for the off-line charging icon to appear. Unless I'm mistaken, the percentage won't correspond with whatever your phone reports while your in Android. If Android says 100%, this will be a lower number. And off-line charging will keep on charging until you reach 100%.
Androbots said:
With original charger it takes 6hrs!!! Holy ****
I think its a usb port problem for sure.. Do one thing while connected to the charger go to device maintenance and open battery menu and see if it say charging via AC or USB if while us8ng the original charger it shows Chaging via USB then certainly its the port that has gone faulty..
Hit thanks if helped
Click to expand...
Click to collapse
Sorry for the late response. Internet finished, had to wait until the renewal date. During this time, i wiped the rom and re-installed it (Khongloi V11). Since there was no internet, i didnt sign in any accounts, Switched off the location. The phone surprisingly took 3 days before reaching 0.
Indeed, it says USB Charging 6hrs. I sometimes keep plugging and unplugging, it changes to A/C 2hrs.
I have this problem too. But I change batt_capacity_max to 1000, phone on 100% phone off 100%. If we recharge to full it will return to the same state (phone on 100, phone off ~80) so i need to change again. I don't know if this destroy my battery life ? I don't know why. I thought I'm the only 1 who have this problem? (sorry for my bad english)
I think this may be a software/firmware problem, not a problem with the battery.
Crike said:
I think this may be a software/firmware problem, not a problem with the battery.
Click to expand...
Click to collapse
I figured that was the problem but i tried it with three different roms (Khongloi V11, Final, Stock).
Maybe it's some kind of battery protection thing created when your battery is old or something?
3zozHashim said:
I figured that was the problem but i tried it with three different roms (Khongloi V11, Final, Stock).
Maybe it's some kind of battery protection thing created when your battery is old or something?
Click to expand...
Click to collapse
The various ROMs may all use the same battery raportage code, which doesn't account for this discrepancy. After all, most ROMs are just fancy reskins of stock Android.
That said, maybe Samsung support can shed some light on what's going on.
On a side note? Is there anyone who reads this thread, whose reported battery charge (in percentages) is the same in Android as when the device is switched off and charging?
So... any solutions?
hi guys / girls,
i have had my zuk z2 pro (z2121) 6gb / 128gb for about a year now and i am really satisfied with the phone overall.
Despite my satisfaction i now have a big issue: it will not charge ! :crying::crying:
What i have done:
i was on android 7 in AEX rom, now i am on android 8 in AEX 5.4 for about 2 weeks now.
i had to install the latest radio version to get my phone back running since i had problems after flashing (no sensors worked at all).
now: the phone was at around 8 % battery last night when i plugged in the charger.. it didn't show "charging slowly" on the lockscreen, what i found a bit weird.
this morning the phone was dead and the battery was empty. i have booted up in fastboot mode or recovery (i'm not sure, but not twrp) and connected the charger again, now it was charging !! at 0,42 amperes approximately. so not much but at least it was charging.
unpatience as i am i tried to boot after about 1,5 - 2 hours to see what the battery had done in this time.... android shows 15 % ... i plugged in the charger again and :crying::crying: again no charging.
android does show the lightning symbol, but there is no power consumption measured from the charger.
what could this be ?
i have tried 3 chargers, 3 different cables (1 new) so i suppose that cannot be the source of my misery.
what i find the most weird is that there is power consumption from the charger when the fastboot menu shows up... after there was 15% in the battery i don't get that either :crying::crying:
anyone here to help ??? please.. i have allready contacted 2 repair firms nearby but both of them are a bit scared by the fact that it;s a chinese phone and they cannot give warranty on a new battery.
thanks to mar.ur here on the forum (he helped me before, the good man) i have got the solution.
As i had been reading on more forums, there are more users having the likewise problem, this is (for now at least) the solution:
Go to twrp / advanced / file manager / data / system and delete battery stats
in my phone i had 3 files, i deleted them all.
next tip from mar.ur was to charge to 100% and use till about 5% before charging. that might have something to do with creating new battery stats i suppose
thanks again mariusz
hans.vinkers said:
thanks to mar.ur here on the forum (he helped me before, the good man) i have got the solution.
As i had been reading on more forums, there are more users having the likewise problem, this is (for now at least) the solution:
Go to twrp / advanced / file manager / data / system and delete battery stats
in my phone i had 3 files, i deleted them all.
next tip from mar.ur was to charge to 100% and use till about 5% before charging. that might have something to do with creating new battery stats i suppose
thanks again mariusz
Click to expand...
Click to collapse
yeah, but it should be charge faster. ~ 2 amps with correct cable and charger. 420mA is a bit low... how did u figure that out? Did u measure?
I have the same problem of charging at 420mah at most. The phone used to charge at 2amps with same cable and charger. Same cable and charger charges my other phone at 1.1amp, which is its max. Did you find a solution for this?
hans.vinkers said:
thanks to mar.ur here on the forum (he helped me before, the good man) i have got the solution.
As i had been reading on more forums, there are more users having the likewise problem, this is (for now at least) the solution:
Go to twrp / advanced / file manager / data / system and delete battery stats
in my phone i had 3 files, i deleted them all.
next tip from mar.ur was to charge to 100% and use till about 5% before charging. that might have something to do with creating new battery stats i suppose
thanks again mariusz
Click to expand...
Click to collapse
bgenc said:
I have the same problem of charging at 420mah at most. The phone used to charge at 2amps with same cable and charger. Same cable and charger charges my other phone at 1.1amp, which is its max. Did you find a solution for this?
Click to expand...
Click to collapse
See above...
Same here, only charging at 0.42A only with some selected, older chargers. Using some more modern chargers with more Ampere does not work. Charging symbol in the taskbar, but not charging. Measuring with an USB voltage meter it just says 0A and Voltage is at 5.12v on modern chargers. Strangely it chargered in an rented citröen c3 with 1.5A when I was in holidays.
QC only worked for the first two months when I got the phone.
Tried deleting battery stats, but still no QC or charging with more than 420mA.
Look in the charge port for dust/lint/etc. and carefully blow/pick out any see.
What does happen when you connect your phone with PC ? Does it still charging 420 mA ? Sync data works good ? How long does it take to get full baterry from almost empty ?