Develop Bugs

[Q] N7100 slow charging on PC

Hi everyone
Ok my phone charges on samsung charger with my nokia n8 usb cable is fine and faster then default cabe.
But when i connect to my pc with usb cable it charges but very slow. i pluged it for full night but it charges only 45% with my usb cable i used in charger in usb 3.0 port.
any idea whats happening
and im charging it on USB port of pc, Coz one of my friend borrowed my charger without cable for a week.
and now i found out the prob.
Please suggest something.

Hey buddy. ..This isnt an issue at all....The standard note 2 charger is set at 2Amps...which suggests considerably fast charging....100% in about 4 hours. ..but if you are charging just from the usb using the pc port....It will definitely charge slower...because the phone is built so that the kernel will prevent excess power from a pc....After all. ...We plug the phone to transfer data....After all nd not to really charge....so it will be very slow...This is normal....It takes about 9 hours to reach 100% if I'm not mistaken....hope this helps

sadeshmagic said:
Hey buddy. ..This isnt an issue at all....The standard note 2 charger is set at 2Amps...which suggests considerably fast charging....100% in about 4 hours. ..but if you are charging just from the usb using the pc port....It will definitely charge slower...because the phone is built so that the kernel will prevent excess power from a pc....After all. ...We plug the phone to transfer data....After all nd not to really charge....so it will be very slow...This is normal....It takes about 9 hours to reach 100% if I'm not mistaken....hope this helps
Click to expand...
Click to collapse
Thumbs up... just wanna hear that. for the sattisfaction ...
THANKS
and think it will take longer then 9Hrs :good:

[SOLVED] SM-P605 (kitkat) battery charging problem

It is solved! Some 3rd-party usb chargers have same issue.
Samsung standard charger works very well.
I have a Galaxy Note 10.1 2014 edition (Hongkong, TGY).
Yesterday I updated my device to 4.4.2 (P605ZSUCNE3_P605OZSCNE3_TGY) with Odin.
Upgrading was OK, everything works fine except a battery charging problem.
When device connects to a usb charger, the battery stops charging after 1-2 minutes although not 100%.
I tried something but nothing helps.
- Changing charger/cable to another
- Factory reset (Recovery mode)
- Flashing P605XXUCNE2_P605OXACNE2_NEE (Nordic) Firmware
- Power off mode charging -> It works. This is the only way to make device 100% that I found.
Click to expand...
Click to collapse

Having same issue. Seems to stop when screen times out

SM-P605 battery issue (I still have one!)
kissfan said:
Having same issue. Seems to stop when screen times out
Click to expand...
Click to collapse
I've got the same issue following the 4.4.2 update, all my third party charges that worked fine before the update no longer work. Battery management software show the device getting the same mA of current to the battery but the device is not charging (it says that it is!).
Original charger does work but is not a valid solution for me, why are the non-oem chargers not working all of a sudden and how do I get them to work again?
---------- Post added at 08:55 AM ---------- Previous post was at 08:06 AM ----------
kissfan said:
Having same issue. Seems to stop when screen times out
Click to expand...
Click to collapse
I've got the same issue following the 4.4.2 update, all my third party charges that worked fine before the update no longer work. Battery management software show the device getting the same mA of current to the battery but the device is not charging (it says that it is!).
Original charger does work but is not a valid solution for me, why are the non-oem chargers not working all of a sudden and how do I get them to work again?

I'm having the same problem, trying to fix with some charger mods (shorting data pins of USB) or fast charge kernel. The kernel hack did not work yet, but shorting the d+ and d+ pins of usb cable on device end works. (although I could achive max 1.5mah)

According to this
http://www.androidpolice.com/2014/0...t-on-the-note-3-but-there-is-a-root-solution/
Samsung denies any intentional blocking and a connection between KitKat and third party accessories.
I tried my third party chargers and they too didn't work. Charging stopped when the screen turned off. However, my Motorola and HTC chargers do work. Maybe the third party tings have inconsisten voltage output or something like that.

I had the new Tab s 10.5 and some of my usb chargers would not work. I found a deal way to good to pass up so I returned the Tab s and THOUGHT I was getting a Note 10.1 2014 wifi. Yet lol I didnt I got a 605 which is AWESOME ..I just always wanted the SnapDragon chip. It was a tad over $400 32gb NEW.
Anyway so I turn it on set it up and it was downloading 4.4 already I wanted to stay with 4.3 after reading around here. Yet so far it works flawless. All my usb chargers work. I can be doing ANYTHING and it keeps charging. Like I said the Tab s I could ONLY use Samsungs.

In my case Android 4.4 for P605 is way better than 4.3. Great battery live, great performance, no or very small lags. But I had initial release of 4.3 ROM which was never updated.

I have a third party charger and it goes well. It is Chinese no marks.

If it is just shorting the data pins, then it will charge. But you will be limited to 1500mah.

I think it needs an Apple compatible charger. Only the Apple standard supports charging over Usb 2 at 2A, for the Ipad.
The Anker 5 port 8A charger is fantastic.

lecorbusier said:
I think it needs an Apple compatible charger. Only the Apple standard supports charging over Usb 2 at 2A, for the Ipad.
The Anker 5 port 8A charger is fantastic.
Click to expand...
Click to collapse
No, I did that mistake and bought a dual port 4a charger. Samsung somehow detects Apple charger and stops charging when screen turns off. I had to make an adapter for shorting data pins, like this, I can at least charge with 1.5a

while i was on vacation my p605 starts having the same problem. It is just loading while the screen is on. After getting black/off it takes a few more seconds till charging stops. This problem is accompanied by the symptom that the tablet won't be recognized by the pc anymore. It is just loading ('til the screen gets black). i have no idea what to do. i am not sure, if the different voltage on vacation could be a reason. based on the fact that i can't get it back to stock, i guess i can not get it repaired by warranty (or is there any way to get it stock? unfortunately mobile odin is not supported). i would be glad about some good hints and thank you in advance

Your cable or charger might have a problem or you may be using a different charger than original one.

Hi everyone,
I've found a bit different issue - my P605 (LTE) does not want to be charged when plugged into USB port (so, no charger is being used).
I tried both using laptop and stationary PC
//ok, nevermind. I've just found somewhere else, that it has been always like that (not noticed that before)

Exact same problem here - charging stops as soon as the screen lock kicks in, even with the original Samsung charger. Brought the tablet back to the tmobile store and had them connect to another Samsung charger - still happens.
Has anyone found a fix for this short of shorting the harger pins?

I don't follow my own advice, and never had this problem. But charge with the original cable where the two GND pins are connected. In most cables one of them is open.
My old Garmin Street Pilot with mini usb used the second GND pin to determine whether to remain operational and charge, or go into pc connectivity mode and do nothing else.

I have the same problem . After upgrading to Kit kat just a few days ago it would stop charging moments after the screen turns off. No matter what cable or charger

This happens to me only when I'm not using original 5.3v charger and original cable. Check your cable and charger. (although I think it works with 5v Samsung charger of my note 3 as well)

My last charger had 4.9v with no load, and certainly lower with a 2A load. No Problems. But if a charger is badly stabilized, it may drop too much, and the Note is very demanding, with twice the current of a typical phone.
I had a DIY adapter to charge my old Nokia stuff via USB. The Nokia chargers have a 5v spec, but one provided 6v, another 7v. And USB voltage seemed too low, there was sort of sporadic charge, with the connection dropping after a short time. But all connections were fine, must have been a voltage thang.
So i still have to keep a Nokia charger ready, only to charge my Nokia BT headset.

Galaxy Note 10.1 2014 Edition Charging Fail
Has anyone discovered a fix for this:
When I plug in my tablet...Samsung Galaxy Note 2014 Edition...Using any plug (I have tried factory charger, and multiple alternatives including Ipad Charging adapters) when the screen is on the charging occurs, but When the screen closes about 2 seconds later the screen turns back on the way it does when charge is complete, only its still at same battery level as before! I have tried closing all apps and still the same, Used Task Manager to close all apps and clear the RAM and still nothing, Gone into app manager and closed running processes and still the same results! I am operating KitKat (OS since purchase) and the only actual way to charge it is to leave a plug in all day with the screen On, or shut off the Tablet!
Is there a fix for this or what?
Its bad enough that I cant find a good bluetooth keyboard that is compatible with this tablet! Im on the verge of trading it in and going Apple! Someone please help...Keep me from turning to Apple!
Is there a fix for this even if it requires manually adjusting chargers or the tablet itself (the internal components)?
thank you all for your help!
Semper Fi

[q] dead tablet!!! Help please

hi my good friends
today i got a weird problem with my tab
its better to say like that: my battery percent dropped from 9 percent to 1 percent and then powered off.
after that my tab WONT TURN ON OR CHARGING AT ALL
i connected it to charger for a while but nothing happened , nothing!
trying to recovery but still nothing! have you seen the same problem?
whats your idea? what i gonna do?
HELP PLZ

Hi.
Did you try disconnect battery about half hour then connect and re-charge?

memooffon said:
Hi.
Did you try disconnect battery about half hour then connect and re-charge?
Click to expand...
Click to collapse
yeah i did that but still nothing

the battery drop sounds like a clibration problem - coupled with a possibly loose usb port? Had usb charging problems once but got it sorted out by trying to plug the usb cable into the port from "different angles" (carefully!)

mandegar93 said:
hi my good friends
today i got a weird problem with my tab
its better to say like that: my battery percent dropped from 9 percent to 1 percent and then powered off.
after that my tab WONT TURN ON OR CHARGING AT ALL
i connected it to charger for a while but nothing happened , nothing!
trying to recovery but still nothing! have you seen the same problem?
whats your idea? what i gonna do?
HELP PLZ
Click to expand...
Click to collapse
You need this tool to find out which one is at fault:
http://www.ebay.com/sch/i.html?_fro...&_nkw=usb+current+and+voltage+tester&_sacat=0
Swap one by one: charger, USB cable, USB port until you find the problem. Make sure to use known working charger, cable for testing. USB port flex cable is not expensive, just around $5 to $9 on Ebay.
You should have ~ 5-->5.2 Volts, 1.5 -->1.7 Amps when charging. Anything lower than these readings, you have a problem with charger or cable or USB port.
You have to use elimination method to find out the problem as there are many unknown factors when battery is not charging.

Beut said:
You need this tool to find out which one is at fault:
http://www.ebay.com/sch/i.html?_fro...&_nkw=usb+current+and+voltage+tester&_sacat=0
Swap one by one: charger, USB cable, USB port until you find the problem. Make sure to use known working charger, cable for testing. USB port flex cable is not expensive, just around $5 to $9 on Ebay.
You should have ~ 5-->5.2 Volts, 1.5 -->1.7 Amps when charging. Anything lower than these readings, you have a problem with charger or cable or USB port.
You have to use elimination method to find out the problem as there are many unknown factors when battery is not charging.
Click to expand...
Click to collapse
Thanks dear friend, i got the solution by replace a new usb port of my tab and now it's alive ?

warp charging issue

Warp charging doesn't go beyond 3.5Amps on ampere app causing slow charging rate shouldn't it give close to around 5.2Amps charging speed? Can anybody share their screenshot or is there a issue with my device

kryolyt said:
Warp charging doesn't go beyond 3.5Amps on ampere app causing slow charging rate shouldn't it give close to around 5.2Amps charging speed? Can anybody share their screenshot or is there a issue with my device
Click to expand...
Click to collapse
With Warp Charge there are several factors that come in to play. The charger itself, the USB Type-C Cable and your device.
Has Warp Charge ever worked on your device?
When the cable is connected do you see "Warp Charge" displayed on the screen?
Did the Ampere App ever show the maximum 5.9 amps or does it always show a maximum of 3.5 amps?
Are you using the original Warp Charge wall outlet adapter and original USB Type-C Cable?
If Warp Charge was working before, how long has it been since you last saw it work?
Have you modified the device at all?
Sent from my OnePlus HD1907 using XDA Labs

fast69mopar said:
With Warp Charge there are several factors that come in to play. The charger itself, the USB Type-C Cable and your device.
Has Warp Charge ever worked on your device?
When the cable is connected do you see "Warp Charge" displayed on the screen?
Did the Ampere App ever show the maximum 5.9 amps or does it always show a maximum of 3.5 amps?
Are you using the original Warp Charge wall outlet adapter and original USB Type-C Cable?
If Warp Charge was working before, how long has it been since you last saw it work?
Have you modified the device at all?
Click to expand...
Click to collapse
Yes it was all working before I have earlier got 5.2 to 5.5 amps but from past couple of months it's been fixed at 3.5 amps now, and yes I have been using original warp charger provided and no haven't unlocked or rooted my device, could this be a problem with the device or any other fix for this?

fast69mopar said:
With Warp Charge there are several factors that come in to play. The charger itself, the USB Type-C Cable and your device.
Has Warp Charge ever worked on your device?
When the cable is connected do you see "Warp Charge" displayed on the screen?
Did the Ampere App ever show the maximum 5.9 amps or does it always show a maximum of 3.5 amps?
Are you using the original Warp Charge wall outlet adapter and original USB Type-C Cable?
If Warp Charge was working before, how long has it been since you last saw it work?
Have you modified the device at all?
Click to expand...
Click to collapse
Look that's the Max I get with the official warp charge now, and it's been constant, restarted still no good

kryolyt said:
Look that's the Max I get with the official warp charge now, and it's been constant, restarted still no good
Click to expand...
Click to collapse
That's what I get with stock charger + stock cable.
Edit: I forgot! I have Arter Kernel r54 running on OB2!!

Kollachi said:
That's what I get with stock charger + stock cable.
Edit: I forgot! I have Arter Kernel r54 running on OB2!!
Click to expand...
Click to collapse
Can you look at your oxygen version please, which one are you at?

kryolyt said:
Can you look at your oxygen version please, which one are you at?
Click to expand...
Click to collapse
OB2 = Open Beta 2

Sent from my OnePlus HD1907 using XDA Labs

Bought mine 2019-12 . few days ago (2020-03-30) warp charge stopped working, it still charged, but extremely slow like 40 percent an hour. When it was off i tried plugging in charger, but it started looping, it didn't boot to an animated picture with charging battery, but it still could boot into OS when power button was pressed. Did a factory reset, didn't help. Connecting to pc usb still recognizes it. Had a feeling it was a hardware error. Maybe fast charging module went bad.
Sent it for a warranty repair, got an answer that it will take more time because it was sent for an higher level service. I guess it's quite bad, it could be a motherboard fault.
I read on oneplus forums that quite a few people has a same issue.

Connect it to a pc, see if it is recognized. Mine stopped working & it was a bad USB Car port. It would still slow charge but no warp charge & no windows pc would recognize it connected

Hi! I have the same issue, only difference is that mine is sometimes charging at warp speed and most of the time at 3300 mAh "dash speed". Did you manage to see what the issue was?

vaidas196 said:
Bought mine 2019-12 . few days ago (2020-03-30) warp charge stopped working, it still charged, but extremely slow like 40 percent an hour. When it was off i tried plugging in charger, but it started looping, it didn't boot to an animated picture with charging battery, but it still could boot into OS when power button was pressed. Did a factory reset, didn't help. Connecting to pc usb still recognizes it. Had a feeling it was a hardware error. Maybe fast charging module went bad.
Sent it for a warranty repair, got an answer that it will take more time because it was sent for an higher level service. I guess it's quite bad, it could be a motherboard fault.
I read on oneplus forums that quite a few people has a same issue.
Click to expand...
Click to collapse
had similar issue today .and while charging at switch off system reboot frequently.is there any solution.is it hardware issue or software issue

Question Poco f3 fast charge works then stops

Hi guys
I recently bought a poco f3 256g 8g ram, it's a great phone but one thing I have noticed is that when you try to fast charge it, it works then stops with the charging icon saying its charging even when you pull the charging cable out. I checked it with accu battery and it show that its not charging with minus amp age going in. You then turn the phone off and the charging icon resets. It charges fine when you don't use a fast charger and use a non fast charge brick. I don't have the original f3 charger but have tried my mate 20 Pro fast charge brick as well as my old s8 plus charger and new cables it only charges on a non fast charger. Any ideas anyone?

make sure the fast charger is 33W

Hi thanks for the reply are these phones really that sensitive to the the wattage, the charger I had is a 40w Huawei fast charger and the other a Samsung 18w both start to charge then stop and you cannot charge it with any charger until you turn the phone off. I have tried to get a official poco 33w charger but they are not easy to find.

i have used my 33W charger and another charger 18W fast charger and everything looks fine. if your phone is still under warranty, go to your nearest mi service center.

Hi I got it secondhand so I can't I'm afraid I'm sort of wondering if its a protocol thing as it charges fine with a non fast charger I might flash it in time and see if its a software issue, I can live without the fast charge but it would be nice to have the capability.

fishboy25 said:
Hi thanks for the reply are these phones really that sensitive to the the wattage, the charger I had is a 40w Huawei fast charger and the other a Samsung 18w both start to charge then stop and you cannot charge it with any charger until you turn the phone off. I have tried to get a official poco 33w charger but they are not easy to find.
Click to expand...
Click to collapse
They are ... You need to look at what's written on the charger , not the big W numbers.
Original charger supplies 33W by using 11V and 3Amps.
Written like this on the charger : 11V=3A 33W
Nothing else will work , I for example use 6A cable and it does not charge well - the amps are enough as you can see but the cable most likely can't handle 11V...
Open google , search for authorised xiaomi repair center and buy charging brick/cable from them. Sometimes they too just pick random charger so you'll have to check when you receive it that both the cable is rated at 3A and the brick supplies 33W like written above

Rstment ^m^ said:
They are ... You need to look at what's written on the charger , not the big W numbers.
Original charger supplies 33W by using 11V and 3Amps.
Written like this on the charger : 11V=3A 33W
Nothing else will work , I for example use 6A cable and it does not charge well - the amps are enough as you can see but the cable most likely can't handle 11V...
Open google , search for authorised xiaomi repair center and buy charging brick/cable from them. Sometimes they too just pick random charger so you'll have to check when you receive it that both the cable is rated at 3A and the brick supplies 33W like written above
Click to expand...
Click to collapse
Hi thank you for the reply I will endeavour to try and find a legit charger and cable many thanks again.

fishboy25 said:
Hi thank you for the reply I will endeavour to try and find a legit charger and cable many thanks again.
Click to expand...
Click to collapse
Yw. My reply above mainly covers how to get 33W charging , but I have no idea why it's refusing to charge?
Oddly enough I have the same exact issue happen like bi monthly... Pretty rare but usually happens when phone is REALLY hot ( mine is modified to allow higher temp ) + the charging port is fked and I'm using non compatible cable lol.
Is possible that every once in a while it all lines up so that the phone doesn't recognize charging brick due to bad port situation + it being rly hot sends it into some sort of charging lockdown?
Either way mine is very rare.
I suggest you first get the cable/brick those are like 20/30$ + I bet any repair store would ship it to you. Then if it still doesn't work you can start troubleshooting software/port/motherboard see where the issue is...

Rstment ^m^ said:
Yw. My reply above mainly covers how to get 33W charging , but I have no idea why it's refusing to charge?
Oddly enough I have the same exact issue happen like bi monthly... Pretty rare but usually happens when phone is REALLY hot ( mine is modified to allow higher temp ) + the charging port is fked and I'm using non compatible cable lol.
Is possible that every once in a while it all lines up so that the phone doesn't recognize charging brick due to bad port situation + it being rly hot sends it into some sort of charging lockdown?
Either way mine is very rare.
I suggest you first get the cable/brick those are like 20/30$ + I bet any repair store would ship it to you. Then if it still doesn't work you can start troubleshooting software/port/motherboard see where the issue is...
Click to expand...
Click to collapse
Hi thanks for the reply I have found a poco charger on ebay and a lead not too sure about the lead but I think its suitable. I'm not sure what's going on with it but I will let you guys know if it works. I did read somewhere that someone had a similar issue and that they disconnected the battery and after that didn't have a problem, I think I will try the charger first.

Hi guys got the charger connected it up works then goes into minus amps and stops charging until you turn it off again. So I'm wondering if its worth flashing it? Really frustrating

fishboy25 said:
Hi guys
I recently bought a poco f3 256g 8g ram, it's a great phone but one thing I have noticed is that when you try to fast charge it, it works then stops with the charging icon saying its charging even when you pull the charging cable out. I checked it with accu battery and it show that its not charging with minus amp age going in. You then turn the phone off and the charging icon resets. It charges fine when you don't use a fast charger and use a non fast charge brick. I don't have the original f3 charger but have tried my mate 20 Pro fast charge brick as well as my old s8 plus charger and new cables it only charges on a non fast charger. Any ideas anyone?
Click to expand...
Click to collapse
our phone is still under warranty, go to your nearest mi service center.
Nox Vidmate VLC​

Hi guys just a quick update I connected it up the other day and watched the ampage and voltage go into minus again frustrated I just left it and came back 10 minute later and it charged. It turns out with the original charger it goes into minus amps and voltage but if you leave it it charges and ampage goes up with the voltage.if you disconnect the charger while its in minus amps and voltage it says its still on charge and you have to reset or turn the phone off before you can attempt to charge it again. But if just connected with the original charger without disconnecting it while in minus volt and amps it will charge and the volts and ampage starts charging. I have come to the conclusion its a glitch or bug in the charging protocol for the fast charging or software..