Database Develop

Huawei P9 : Low charge or no Charge when using the phone

Hi,
I noticed that my Huawei P9 does not charge or charge is low when i'm using it.
This is espacially disturbing when I drive and I use Waze and Spotify.
I checked my Chargers and they all deliver a 2.4 A.
I noticed this with the official usb câble and with anker câble.
Did you have the same issue ? Do you know how to fix this ? I haven't these problème with my Honor 7
Thanks in advance.
Sylvain

i have the same issue when i use Maps. it's slow charging. other than this is fine.

The same for me, too. I used Waze on my holiday, and the charging speed was approximately 10 or maximum 15 percent per hour.

Have you tried the official charger?
I have experience with phones choosing to charge 1A or lower with chargers they don't like (eg. chargers not offcially supported)

I have a car charger, 2.1 A.

I tried with the official charger but the problem remains.
I also noticed that it occurs when I use an external battery which deliver 2,4A. I assumed that the phone managed the charge like this to avoid overheating but I would prefer that it charge a little bit faster when I use the GPS to no loss any percent of battery

Huawei Quick charge
I have the same issue, well i use too, i was using the original charger that came with the phone, i noticed when my battery was very low and playing Critical Ops (an FPS game on Google store) that my battery would just die out. Best solution to this is to buy the Huawei Quick charger which you can find on EBay, maybe Amazon, it's about $10-13 but it's worth it, charges the phone to 100% in an hour or less and you won't have the issue anymore.

I solved the issue cooling down the phone.
The phone has a silicon cover and was placed against the windscreen. During sunny days It was getting very hot until I received the message it was shutting down some features due to very high battery temperature. Then I placed the phone keeping the cover in front of an air vent with air conditioning on and the battery temperature went down below 30 Celsius degrees while charging.
Now with Waze running and Deezer broadcasting through Bluetooth, it's able to recharge from 50% to 90% in almost half an hour. Hope this helps.

Thanks for your reply.
I will try to buy a car charger with quick charge.
I already use a ventilation car mount so the phone remains cool. I will try to change the position to have a better cooling

Slow Charging 9.7" Tab S2...

Hey guys,
I haven't used my Galaxy Tab S2 in a while now. When I plugged it in it was at 0%. I used "a" (possibly not original that came with box) OEM 2.0A Samsung Charger + Note 5/Samsung Official Cable to charge my tablet. It has only gone up by 5% in the past 30 minutes.
Also when it was at 0% it said it'd take 7hr 12min to fully charge.
Is this normal when the tablet has not been used in a long time, or am I possibly looking at a bad charger/cable as the charger and cable charge my Note 5 just fine at the normal (non-fast charge) speed where it charges my phone fully in just over 1hr 30 min.
If someone could help me out to resolve this I'd be grateful.
Thanks! :laugh:

Don't think the charger and cable are faulty as they work on your mobile. Generally whenever I charge my Samsung galaxy tab s2 using a different charger it shows a notification if the charger plugged in is slow. If it didn't show this I don't see why it would take so long other than the charger your using has a lower output causing it to take a lot longer than usual to charge.

Every android device I have will sometimes not charge fast enough - it doesn't matter what charger I'm using. If I catch that the charge is slow I just unplug it and replug it a it'll be normal again. I think the "smart charge" goes crazy sometimes.

I had the same problem on the tab s2 8''. It was because the motherboard broke. They fixed it under warranty.
When I had this problem I couldn't attach any external device (usb, playstation controller) through USB. Try if you can

I don't have the original charger anymore to compare on my 9.7. I use anker potable batteries to be free of wall sockets. It isn't 2.0. In battery monitor widget, really good app, shows charge anywhere from 1200-1600mA 20% per hour while in use during charging. 5 hours total. I think with screen off I get 30%. I get 10 hours of screen on time zero loss with it off over night. Using 5.1
It could be the motherboard. I know with laptops charging starts to mess up a few weeks before it no longer works at. The connection between the USB and board weakens over time/use.

moustafasadek11 said:
Hey guys,
I haven't used my Galaxy Tab S2 in a while now. When I plugged it in it was at 0%. I used "a" (possibly not original that came with box) OEM 2.0A Samsung Charger + Note 5/Samsung Official Cable to charge my tablet. It has only gone up by 5% in the past 30 minutes.
Also when it was at 0% it said it'd take 7hr 12min to fully charge.
Is this normal when the tablet has not been used in a long time, or am I possibly looking at a bad charger/cable as the charger and cable charge my Note 5 just fine at the normal (non-fast charge) speed where it charges my phone fully in just over 1hr 30 min.
If someone could help me out to resolve this I'd be grateful.
Thanks! :laugh:
Click to expand...
Click to collapse
Sounds normal. The big Lion batteries in these devices are just weird at time. Running one down to 0 is a good way to kill the battery permanently. Let it charge slowly and then keep it above 20-30% from now on. Should improve over time.

I think its a myth you shouldn't let the battery get low. As long as the battery itself says I'm at zero at the correct voltage then zero is perfectly fine. I'm not an expert here but at 5% battery I'm at 3.6v and will turn off in a few minutes after that. I think batteries are manufactured to safely go down to 3.2 before saying no more. Need to charge.

Xperia XZ2 doesn't say quick charging when it's being charged

Hello, everyone.
I just got my XZ2 but when I charge it, it only displays that the phone is charging. Not quick charging. What does your phone say? Thank you!!

Sorry phones never show quick charging so don't worry

Maybe what you meant is a "Charging Rapidly" message?

It's not just not saying quick charging... it isn't quick charging from what I can tell. A full charge takes me 2h 15 min, though much of it is because it slows down to 5% per 15 minutes once it is above 70% or so. But the maximum power draw I've measured (with screen off) is 12 watts. That's basically 5V 2A charging, which we've had for a long time now. A Xiaomi Mi 6 for example draws 19 watts, and is fully charged in 1h 15 min, despite having a bigger battery. I believe Sony isn't quick charging to prolong battery life, which usually is a good thing. I just wish there was a manual way to tell the phone to quick charge, when you know you don't have a lot of time to top it up.

QC3.0 is working fine... we have Voltage from 5.2 to 8.8V which is normal.
2h15min is a complete normal duration for charging. We have Qnovo Charging Technologie which slows it down. but it will greatly enhance longetivity.
I've tested charging here.

I'm ok with the slow charging, except there are times where you don't have access to a power socket for long. Say at an airport. Or you are about to leave home and find out the battery is almost dead. In those situations I just want to hammer the battery... and that that is possible is obvious when you look at the competition. They won't last as long, but if you could activate quick charge in emergency situations that would be great.
Also, that's a great posting. Thank you!

I upgraded from Z5, so quick charge on XZ2 is pretty fast!

It run with quick charge but just dont like the other.. i think sony only use around 80% capable of qualcom quick charge

When I had an HTC 10, the battery ran out faster after it was charged using the quick charger.
With XZ2 I just use the original 1.5A charger, nothing to complain about battery life.

kadajawi said:
I'm ok with the slow charging, except there are times where you don't have access to a power socket for long. Say at an airport. Or you are about to leave home and find out the battery is almost dead. In those situations I just want to hammer the battery... and that that is possible is obvious when you look at the competition. They won't last as long, but if you could activate quick charge in emergency situations that would be great.
Also, that's a great posting. Thank you!
Click to expand...
Click to collapse
I can also confirm this... Its working as it should... this charges faster than my old XZ.... Also You could consider a power bank, you can pick up a 4k power bank for about £10 /$15
IMO, Ide rather my battery lasted 2 or even 3 years and buy a power bank than have battery problems in 12_18 mnths, but I do agree with you ... it confused me at first, and It could say "quick charge" or something similar

wireless charger very slow

hi guys, i'm from a 8 note and now i'm using sasung's original 8 wireless wireless charger to plow my new 9 notes, but i'm noticing that it's really slow, is it normal? I have the impression that even imposed fast charge does not change anything, do you have any suggestions?

im also using the wireless charger that I received from Samsung in 2018 for the note 8 promotion.
I can confirm that fast wireless charing takes 2 hours + on the note 9 and up to 3 hours when using slow wireless charging.
Also, keep in mind we have a way bigger battery so i am not surprised seeing these charge times compared to the note 8. I know Samsung released a new wireless charger so we might see better charge times on that??

I use the wireless charger I bought for my Note 4 for $12. It charges my phone in 2 hours from 50%, which is about double than using the cord. It doesn't say slow, or fast, just charging.

I use a Samsung wireless charger I had with a kit when I bought my S8+ and it says "Fast charging wireless" I believe. I use it to charge over night though so not sure how long it takes.

I use the ADATA CW0100 charger with Sony UCH10 QC2.0 Charger - the phone says it's fast charging but it takes about 3 hours to go from 11% to ~100% (with a clear case + bus card in between on the back). The interesting issue is which power brick I use. WIth Samsung's Adaptive Fast Charge power brick, I kept getting a charging paused error in the previous firmware, unless I have the phone placed in a very specific position without a case. With the update (N960FXXU2ARI9), it no longer gives me the error even if I charge it with a case, but the charging seems a bit more noisy in comparison to the UCH10 (there's no fans, it sounds like the inductor making a pulsing clicking sound). Will be checking its charging speed.
EDIT: I spoke to soon, it started the charging paused error again after I posted here. If you want to use third-party wireless chargers for fast charging, please use QC2.0/3.0 chargers instead of Samsung's own.

Charging using the 25W adapter is slow.Please help.

Ive purchased a Galaxy S20FE (Exynos) version 4days ago. I also purchased a 25W Samsung fast charger. I am getting slow charging speeds. When mobile was on and idle it took 2hrs 10 min to fully charge. (My mobile data and GPS was off). When mobile was off it took 1hr10min to go from 20 percent to 100 percent. Can anyone tell what's the problem?
I am from Delhi. I use two sim cards. I have not rooted or installed any big games.

Ashutosh7x said:
Ive purchased a Galaxy S20FE (Exynos) version 4days ago. I also purchased a 25W Samsung fast charger. I am getting slow charging speeds. When mobile was on and idle it took 2hrs 10 min to fully charge. (My mobile data and GPS was off). When mobile was off it took 1hr10min to go from 20 percent to 100 percent. Can anyone tell what's the problem?
I am from Delhi. I use two sim cards. I have not rooted or installed any big games.
Click to expand...
Click to collapse
There is a fast charging option you need to enable in the settings.

Bala0009 said:
There is a fast charging option you need to enable in the settings.
Click to expand...
Click to collapse
Yes, it was enabled.

install Ampere and check your mA during charging. I get roughly 1700 to 1800mA on the standard charger with fast charging turn off.

Ashutosh7x said:
When mobile was off it took 1hr10min to go from 20 percent to 100 percent.
Click to expand...
Click to collapse
Just for comparison: When my S20 FE 5G is on it took 1h17m to charge from 20 to 100% using bundled 15W charger and cable.

3mel said:
install Ampere and check your mA during charging. I get roughly 1700 to 1800mA on the standard charger.
Click to expand...
Click to collapse
Thank you for advice. I checked mine and found that:
15W charger gives constant 1500-1600mA
25W charger gives max current of 3700mA for a few minutes and then drops down to 1800mA or even 1000mA.
Is it faulty?

Ashutosh7x said:
Thank you for advice. I checked mine and found that:
15W charger gives constant 1500-1600mA
25W charger gives max current of 3700mA for a few minutes and then drops down to 1800mA or even 1000mA.
Is it faulty?
Click to expand...
Click to collapse
It's dropping out of fast charging.
Excessive low or high battery temperature.
Between 40-65% it should charge at about 2% @minute if temp is above 60F and below 100F.
At about 80% it should drop out of fast charging to protect the battery.
You need an approved fast charger brick (minimum 25w) and cable. Make sure cable plug is fully inserted into the brick.
A failing battery will cause erratic fast charging; replace battery if any signs of case swelling are present! Check for this... been there, done that

What make and model of
Ashutosh7x said:
Ive purchased a Galaxy S20FE (Exynos) version 4days ago. I also purchased a 25W Samsung fast charger.
Click to expand...
Click to collapse
Is it defiantly a genuine Samsung changer..?

Ashutosh7x said:
Thank you for advice. I checked mine and found that:
15W charger gives constant 1500-1600mA
25W charger gives max current of 3700mA for a few minutes and then drops down to 1800mA or even 1000mA.
Is it faulty?
Click to expand...
Click to collapse
settings / battery and device care / battery / more battery settings / fast charge...
is it enabled there ?

3mel said:
settings / battery and device care / battery / more battery settings / fast charge...
is it enabled there ?
Click to expand...
Click to collapse
It wouldn't have fast charged at all if not enabled; 3500ma draw indicates it is enabled.
You can try toggling that toogle 3 times on/off while not charging. Sometimes this helps.
Try a known good (new) Samsung 25 w brick and cable.
Clear system cache.
Try a hard reboot (simulates pulling battery)
Make sure the C port contacts are clean.
A factory reset will most likely do nothing except waste your time.
If none of the above suggestions work it's a strong possibility you have a bad C port charging pcb or... a failing battery.
Any case swelling means replace the battery asap☠
A nominal fast charge profile; Note 10+ with a new battery on a Samsung 25 watt brick.
Starting battery temp was 70°F
Start 48% 4895 ma
65% 4100 ma
70% 3700 ma
The current draw can fluctuate as the charge increases depending on various parameters like temperature. Generally the draw is stronger at deeper discharge levels then tapers off as it approaches a 80% charge state. At 90% or so it will be around 800ma. At 100% the draw is 0ma.

I was thinking the phone and charger have to communicate for the charger to know the phones preference of current draw, the 3700mA dropping down could indicate that setting being received and adjusted to.

3mel said:
I was thinking the phone and charger have to communicate for the charger to know the phones preference of current draw, the 3700mA dropping down could indicate that setting being received and adjusted to.
Click to expand...
Click to collapse
With a 3700 ma draw fast charging is engaged.
Erratic fast charging is a strong indicator of a battery failure especially if it's capacity has noticeably decreased.
I watched this type of behavior for about 2 months. It started suddenly.
I was fortunate the swelling battery didn't damage my display or worse. It sits right against the display and it's thousands of mosfets and OLEDs. That matrix is delicate...

blackhawk said:
It wouldn't have fast charged at all if not enabled; 3500ma draw indicates it is enabled.
You can try toggling that toogle 3 times on/off while not charging. Sometimes this helps.
Try a known good (new) Samsung 25 w brick and cable.
Clear system cache.
Try a hard reboot (simulates pulling battery)
Make sure the C port contacts are clean.
A factory reset will most likely do nothing except waste your time.
If none of the above suggestions work it's a strong possibility you have a bad C port charging pcb or... a failing battery.
Any case swelling means replace the battery asap☠
A nominal fast charge profile; Note 10+ with a new battery on a Samsung 25 watt brick.
Starting battery temp was 70°F
Start 48% 4895 ma
65% 4100 ma
70% 3700 ma
The current draw can fluctuate as the charge increases depending on various parameters like temperature. Generally the draw is stronger at deeper discharge levels then tapers off as it approaches a 80% charge state. At 90% or so it will be around 800ma. At 100% the draw is 0ma.
Click to expand...
Click to collapse
Hey, thank you for telling all this. I am planning to go to service center.

blackhawk said:
With a 3700 ma draw fast charging is engaged.
Erratic fast charging is a strong indicator of a battery failure especially if it's capacity has noticeably decreased.
I watched this type of behavior for about 2 months. It started suddenly.
I was fortunate the swelling battery didn't damage my display or worse. It sits right against the display and it's thousands of mosfets and OLEDs. That matrix is delicate...
Click to expand...
Click to collapse
My device is 20 days old. It's battery capacity is 4370mAh (It should be 4500mAh). I am confused if battery is faulty or charger. Can you tell any app to check if battery is faulty?

your battery capacity is the exact same as mine.

Ashutosh7x said:
My device is 20 days old. It's battery capacity is 4370mAh (It should be 4500mAh). I am confused if battery is faulty or charger. Can you tell any app to check if battery is faulty?
Click to expand...
Click to collapse
If you're using the Samsung fast charging brick/cable return the phone now if you still can.
No reason to deal with a factory defect with a new phone. Better safe than pi$$ed
That reported battery capacity is within normal parameters for a new battery.
No app can tell if the battery is failing other than poor capacity. Any rear panel or display bulging is a dead giveaway sign of battery failure.
Note, what Android reports as battery capacity can't be trusted It's dumb as rain.

Ashutosh7x said:
My device is 20 days old. It's battery capacity is 4370mAh (It should be 4500mAh). I am confused if battery is faulty or charger. Can you tell any app to check if battery is faulty?
Click to expand...
Click to collapse
it could be either the phone or the charger that has a problem, it's possible that it is more the 25watt charger if the 15 watt charger works as intended. I'd get both looked at, you want to be sure after the money you've spent.

I have baught this 25W Charger for my s20 fe. But, whenever I try to charge with this after several minutes of charging charger gets disconnected and reconnects within seconds itself and it continues. There is no such issue with original 15W charger. My phone is rooted & custom recovery installed.
Is it software issue or hardware issue? Any idea?
Thanks in advance.

Riaz_Uddin said:
I have baught this 25W Charger for my s20 fe. But, whenever I try to charge with this after several minutes of charging charger gets disconnected and reconnects within seconds itself and it continues. There is no such issue with original 15W charger. My phone is rooted & custom recovery installed.
Is it software issue or hardware issue? Any idea?
Thanks in advance.
Click to expand...
Click to collapse
Not sure about that device but always start by using the OEM fast charger and cable.
Replace OEM charger/cable with same if not fast charging only -then- look for other causes.
A defective battery will also cause erratic fast charging. Any signs of case bulging indicates a battery failure and needs to be addressed asap.
A recently learned this lesson
Fortunately it didn't damage my display. The battery sits right on top of the AMOLED displays (with its thousands of mosfets and delicate matrixs) in most phones.