Teclast X98 Air charging problems AND Workarounds (no 3G, no II) - Teclast X98 Air 3G

Hi !
I had 2 Problems (running Win 8.1):
First: it only charged when OFF, not when windows booted.
Then: NO Charge at all after playing with a USB Hub (nothing defective, just unplugging and replugging).
I solved the NO CHARGE Problem this way:
I opened it, unsoldered the battery (easy, 3 wired, PLEASE isolate them, do NOT short the wires).
Then i sortened (bridged) the 3 solder "blobs" on the PCB with each other to drain remaining capacity from the "confused" charger chip i wanted to reset.
Then resolder battery, BAM, it works again.
My first problem remains --> only charging when OFF, but as i now have an AMpere meter conneted all the time i guess i have the solution !
My battery profile has a low brightness, my "powered" has a high brightness. So if the X98 detects the charger it starts charging (i can see around 1 Amp flowing) and turns up the brightness. BUT the bright screen drains so much power that the Voltage drops and the charging circuit senses that and thinks chargin is over and stops charging.
If you have around 75% brightness this goes on & off forever, my Ampere meter jumping between 1 Amp and 0 Amp all the time, brightness going up and down.
Solution (Well workaround): Set the "powered" brigthness to a low value and ENJOY charging.
Maybe Teclast can solve that via Firmware. If they care...
Greetings,
Nils
P.S. if that helps or you have a better Solution, PLEASE post here so we can see if that is just me or if this is a general situation !!!

enderffx said:
Hi !
I had 2 Problems (running Win 8.1):
First: it only charged when OFF, not when windows booted.
Then: NO Charge at all after playing with a USB Hub (nothing defective, just unplugging and replugging).
I solved the NO CHARGE Problem this way:
I opened it, unsoldered the battery (easy, 3 wired, PLEASE isolate them, do NOT short the wires).
Then i sortened (bridged) the 3 solder "blobs" on the PCB with each other to drain remaining capacity from the "confused" charger chip i wanted to reset.
Then resolder battery, BAM, it works again.
My first problem remains --> only charging when OFF, but as i now have an AMpere meter conneted all the time i guess i have the solution !
My battery profile has a low brightness, my "powered" has a high brightness. So if the X98 detects the charger it starts charging (i can see around 1 Amp flowing) and turns up the brightness. BUT the bright screen drains so much power that the Voltage drops and the charging circuit senses that and thinks chargin is over and stops charging.
If you have around 75% brightness this goes on & off forever, my Ampere meter jumping between 1 Amp and 0 Amp all the time, brightness going up and down.
Solution (Well workaround): Set the "powered" brigthness to a low value and ENJOY charging.
Maybe Teclast can solve that via Firmware. If they care...
Greetings,
Nils
P.S. if that helps or you have a better Solution, PLEASE post here so we can see if that is just me or if this is a general situation !!!
Click to expand...
Click to collapse
I was having problems charging. After I restarted it began to charge. I also turned the brightness down. The charger sent is US power to usb adapter and a very short usb to micro usb cable. The volts and amps don't match my other chargers. I plugged the adapter with a longer samsung usb cable. Hopefully it will charge fine.

I have another problem. While charging my tablet shuts down due to thermal issue.

Hlo deep singhal, can u please contact me. I am from haryana, india & interested to buy x98 air 3g 64 GB. Please leave ur Phone no. If u can.
Sent from my YU5010 using XDA Free mobile app

thedeepsinghal said:
I have another problem. While charging my tablet shuts down due to thermal issue.
Click to expand...
Click to collapse
Hello, I have the tablet since two weeks and also had the thermal issues. Random shut downs in Windows while charging and freezes in android while playing.
When I got the tablet I updated directly to Windows 10 and android 5.
I followed the instructions from techtablets and made a hardware mod. Since then the tablet works as it should. There is the risk of bricking the tablet! This works for air 3g and the new pro as I understood, maybe for your tablet also.

Teclast X98 air 3g ii
My tablet continuously restart
not charge when it on then set low brightness.
Please help in start my tablet.
Regards,
Pradip Algottar
enderffx said:
Hi !
I had 2 Problems (running Win 8.1):
First: it only charged when OFF, not when windows booted.
Then: NO Charge at all after playing with a USB Hub (nothing defective, just unplugging and replugging).
I solved the NO CHARGE Problem this way:
I opened it, unsoldered the battery (easy, 3 wired, PLEASE isolate them, do NOT short the wires).
Then i sortened (bridged) the 3 solder "blobs" on the PCB with each other to drain remaining capacity from the "confused" charger chip i wanted to reset.
Then resolder battery, BAM, it works again.
My first problem remains --> only charging when OFF, but as i now have an AMpere meter conneted all the time i guess i have the solution !
My battery profile has a low brightness, my "powered" has a high brightness. So if the X98 detects the charger it starts charging (i can see around 1 Amp flowing) and turns up the brightness. BUT the bright screen drains so much power that the Voltage drops and the charging circuit senses that and thinks chargin is over and stops charging.
If you have around 75% brightness this goes on & off forever, my Ampere meter jumping between 1 Amp and 0 Amp all the time, brightness going up and down.
Solution (Well workaround): Set the "powered" brigthness to a low value and ENJOY charging.
Maybe Teclast can solve that via Firmware. If they care...
Greetings,
Nils
P.S. if that helps or you have a better Solution, PLEASE post here so we can see if that is just me or if this is a general situation !!!
Click to expand...
Click to collapse

So, after using the tablet for a (long) while, it always shows that the tablet is charging.
I charged the tablet after this first encounter, while it was off, booted up and the battery is empty after ~15 minutes.
And also with removed cable it still shows that it is charging.
Does anybody else have that problem?

I do, i have an air ii that i bought on ebay and worked well for a few days, but now it gets extremely hot, and sometimes charges, sometimes it does not. Just like yours, sometimes it shows that is charging, even with the cable disconnected. If i dont get a refund, i don't know what im going to do.

charging problem after replaced battery
I just replaced the battery wich sais 3.7v instead of 3.8v was the old one. The problem is that it is not charging at all, even if I shut down. Do you know why?

danil0 said:
I just replaced the battery wich sais 3.7v instead of 3.8v was the old one. The problem is that it is not charging at all, even if I shut down. Do you know why?
Click to expand...
Click to collapse
anyone please?

Related

tilt totally dead, cannot recharge, cannot turn on, help.

hi, new member here.
bought my tilt on 10/4/07. has been flawless since that time.
used the nav quite a bit during a road trip, used a cig lighter usb charger.
got home and my battery was at roughly 40%.
put it on the charger at night went to sleep. in morning disconnected it at 8 am. shortly after i arrived at work i got the critical battery low chime. checked and it had like 7% battery life.
figured i didnt plug it in right, or it got knocked loose some how and didnt get charged.
put it in flight mode to minimize battery usage. left work at 2 30 pm (4% battery life) and put it on the car charger. got home and put it on the HTC supplied wall charger. light turned amber, so i assumed it was charging.
checked an hour later and turned phone on, it said 0%, and immediately died. left it on the charger for a few hours and the light was still amber, turned it back on and again 0% and phone immediately died and did a soft reset on its own. i turned the phone off and left it on the ac charger, took out the sim card and put it in an old blackberry to use while the battery was charging.
its been on the ac wall charger for the last several hours, i checked and the phone is totally dead, cannot turn it on, and the LED at the top is now RED.
what is the problem here? why wont this thing charge?
thanks in advance, i have alot of critical info on this device and any help would be greatly appreciated.
i cannot hard reset because i cannot turn the flippign thing on....
Does it charge when you connect it to your computer? If it does, then your charger is toast. If not, then it's probably the phone itself.
I'd try a different charger first. If that makes no difference then a different battery. If that still does not make any difference then time to exchange it.
Lidberg said:
Does it charge when you connect it to your computer? If it does, then your charger is toast. If not, then it's probably the phone itself.
Click to expand...
Click to collapse
connected to either the computer or the wall charger, the LED thats normally amber when charging, and green when charged, remains red.
I had something very similar happen to my wizard.
And as weird as it sounds, the only fix was to charge the battery in a friends wizard on his charger. I'd check the battery if possible.
Could be the battery. Know any place or anyone that will let you try a charged battery? If not, you might have to go in to an AT&T store.
i think i got it working. did some reading/browsing...
took a usb wire and cut the mini usb head off. dissected it and found the the red and black charging wires. took out the battery and held the leads to teh battery while the other end was plugged into a USB/AC adapter wall charger from a old blackberry. after manually charging the battery for several minutes, i put the battery back in the phone and the phone started up. now it seems to be charging off the wall charger and the led is now amber from red.
thanks for all your help/suggestions.
well it worked briefly. the amber light has gone back to red and it seems that the battery is not charging.
dont know what happened to my perfectly functioning phone.
tiltyoself said:
well it worked briefly. the amber light has gone back to red and it seems that the battery is not charging.
dont know what happened to my perfectly functioning phone.
Click to expand...
Click to collapse
Repeat this proceedure but this time do not turn the phone on, just plug it in to the wall charger once you have zapped the battery again.
Turning your phone on probably just caused the already recovering battery to die whiles it is trying to take on a charge.
It is mentioned quite a lot on the boards that Li-Ion Batteries do not like being over disscharged and there is usually a little protection circuit in the battery to provent complete disscharging although this circuit may be on board the phone. Completely disscharging a Li-Ion cell will kill it stone dead and it will need replacing.
When you took the battery out and so called jump started it with your flying leads, this possibly reset the little protection circuit in the battery so it can now take on a charge. I feel that once you turned on the phone, this was to much for the already depleted cell to take and possibly re-tripped its inbuilt circuit.
If you do manage to recover you cell, in future it is good practice not to let the battery go below about 25%. Li-ion cells are generally happy being top off regularly.
I hope this helps buddy
Do let us know!
Cheers
C.
thanks, that was very helpful.
ive tried defibrillating this battery out of the dead several more times to no avail.
ill try it one more time when i get home from work, if its a no go i will go to teh att core store. the phone is 6 weeks old, dont know what they can do for me if the battery is toast...
That Sucks! I hope they'll give you a new battery.
tiltyoself said:
thanks, that was very helpful.
ive tried defibrillating this battery out of the dead several more times to no avail.
ill try it one more time when i get home from work, if its a no go i will go to teh att core store. the phone is 6 weeks old, dont know what they can do for me if the battery is toast...
Click to expand...
Click to collapse
I had exactly the same problem with my battery. It came on though after a day. Although the battery life after this happened went down to 10hrs max on standby. I sent the phone back and got a new one and now all is fine.
This is a problem that affects almost all makes of phone. There are three (main) causes of the problem:
1.
The battery charge drops too low to allow the charging circuit to recognise a battery is even in place (red no charge light stays lit)
possible solution:
http://forum.xda-developers.com/show...22&postcount=6
(in the end very similar in the end to the USB wire used in post above)
2.
A faulty battery (but if you can charge it using a cut usb cable or using a couple of AA batteries this may not be a faulty battery.
3.
A faulty charger OR a charger not delivering 5v at 1000mA as the OEM one does. Many chargers that are used for other phones or generic chargers only deliver 500mA. This is not enough when your battery drops very low. (these chargers are OK for occasional use but I do not advise using them regularly particularly if the no-charge syndrome has shown itself)
4.
A faulty USB connection on the phone. I have now seen a couple of reports where the fine wire connections in the phones USB port have become bent out of place.
Number 4 above is at least possible for the OP as it seems the battery will charge using a cut USB cable but not when either the PC USB cable or mains charger is connected. A USB port on the phone with a a bent internal contact would explain what's happening.
A previous poster was able with a needle or similar to bend the contact back into place.
Mike
i had the same problem with my phone.
put it in the charger overnight and woke up in the morning and couldnt turn on the phone with blinking red light. I don't know if my battery was over-drained though. I went to AT&T and was playing around with their charger and new battery and somehow the so-called dead battery started working again. They changed the SIM card on my phone there and then i haven't been able to use the phone since. I've changed the network to GSM instead of Auto setting under Phone Options which allows us to make calls; but now I can't connect to 3G network.
Charging thru mini usb
My phone started to exhibit similar problems...plugged in but no charging of the battery. I finally realized that my mini usb connection on the phone has been compromised (bent, distorted=not functioning properly) Now I have to prop the mini usb connection up at a slight angle to engage the charge. I think the plastic/metallic connector on the phone is somewhat fragile ...I had similar issues with my hermes.
called customer support.
they are sending me a new phone and battery.
how do i know its not a refurbished one? any clues?
before u send out your defect phone, have u check if your phone's mini-USB connector has bent or misaligned pins?
yeah all the connectors visually are fine.

Battery problems

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%.

[Q] 0% Battery + no charge

Hi all
This is my first thread - although I have been on xda many many years. I have searched the forums before posting this.
This morning whilst travelling to work by car I decided to recharge my Note (which was at 0% due to the previous day of use). I unplugged my Galaxy S2 and plugged the charger into the Note.
The Note would not take any charge from this USB car charger.
Now I know that the charger outputs 1000mA and that it was pumping 750mA into the S2 literally moments before.
I had started to think that the Note was bricked as the low battery and a yellow triangle were the only thing that the display would show, however, I could force the device to boot into Recovery mode (Redpill says the batt % in the corner - it stayed at 0%).
I tried a battery pull. I tried getting the device to reboot system from Recovery and I also tried wiping the battery stats.
The only fix I found was when I plugged it into a 1000mA AC charger.
Has anybody else had this problem? It could be quite an inconvenience if one were to run out of juice (ie 0%) whilst on the move, expecting to be able to charge from the car usb charger...
Moved To Q&A​
Please post all questions in the Q&A section​
Use Original charger and charge for 1 hour. do not try to turn it on. then try to turn ON.
if this doesn't work. try with different Note battery.
Hi. I got it to work eventually using an AC charger but my point was - has anybody else experienced this inability to recharge when at 0% and with only a USB charger or car charger available.
Samsungs recognise when they are plugged into AC Mains or USB don't they. Could there bee something in this that we may have to tweak, within a script during boot?
Sent from my GT-N7000
I hve this problem! Is it because I'm using non genuine chargers / cables?
I think it may be something to do with the juice it requires to get the initial kick from 0%... perhaps it will only take charge from AC in these .
Sent from my GT-N7000
I got this when i flowed all juice to 0%. I've used only genuine wall adapter / charger and got that triangle + ! too.. I just let it be that way and fired up Note few mins after that. Then it started to charge..
marcyspark said:
Hi. I got it to work eventually using an AC charger but my point was - has anybody else experienced this inability to recharge when at 0% and with only a USB charger or car charger available.
Samsungs recognise when they are plugged into AC Mains or USB don't they. Could there bee something in this that we may have to tweak, within a script during boot?
Sent from my GT-N7000
Click to expand...
Click to collapse
Yes, other users have faced this issue. It is not uncommon and has been in various posts over the last few months. As mentioned - use original charger and leave phone turned off for an hour or so - this will kick start it.
I had same problem with Blackberry bold - once below 5% would not charge unless I turned screen off and waited for at least 30 minutes.
I know this sounds all very well in hindsight, but I never let my phone drop below 20% - always charge it around that time. I still get around 2 days on average use but refuse to let it go any lower than that.
Would also recommend purchasing a second battery in case - with a separate charger.
Hope that helps - you are not alone
another one in the club......
i never let the battery go below 10%
below 10% my hands start shaking and my transpiration raise
at 5% i got defects to my view and i cant speack properly
below 5% my body becomes cold and covered by psoriasis.....

[Q] Charging problem

Hi,
I have a new and flawless Note, the USB connector is OK.
At night I connect the Note to the charger and I put some music on to fall asleep. Playback is configured to just play one album once.
Normally I put the phone in Flight Mode, in order to sleep without unnecessary radiation next to me.
On some few occations (it happend to me for like 5 times now), in the morning, the phone is not charged at all! But I am 100% sure that the battery status icon on the top bar signaled the charging mode.
This morning it happend again and I noticed that I left the Flight Mode off (because my wife is away and I want to stay in contact if needed).
Also, I noticed that I have been using a ZTE charger specked with 750mA, while the original Samsung Galaxy Note charger is rated 1000mA.
Can it be, that I was using the ZTE charger on its limit and that having apps running, or maintaining flight mode off, was enough to actually not being able to deliver that extra juice to charge the battery?
The other reason could perhaps be a software problem, like some app draining the battery as much as the charger is able to charge, so in the end the battery stays more or less the same.
I am positive that the USB port is not broken. I.E. I tested by unplugging and plugging the charger from the wall socket instead from the phone and all is recognized OK. Also, no issues when connecting to the PC.
What is odd: on previous occations I think I remember that I just plugged the phone back and it charged.
I swapped the chargers, but still I have this odd impression, fearing that the device might have an issue.
Anyone had similar problems?
Cheers,
vma
Yes, looks like a weak USB charge problem. You get similar behaviour if you try to charge the device from a PC - sometimes I have mine plugged in to my PC at work all day and it barely charges. Get home, put the official charger from Samsung in from a walk socket and it charges in an hour or two max.
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P9 won't charge after battery replacemnet

So like the title said i have replaced the battery in my P9, with an original battery. It has the same part number and all that. I have noticed that the phone won't charge the replacement battery, i have returned the new battery in warranty and revived another one. Same thing, the phone starts up as soon as you plug in any kind of power source to it , like a charger, but no charging notification. The notification light pulses in rare intervals (some thing of 10 secs or more) but it's not steadily on like when normally charging. And the most vexing thing is : if i replace the original battery it charges. Unfortunately the the original battery now has the bad habit of cutting out on me at random from anywhere 47% or bellow .... The phone is nearly 3 year old now.
Have you given the new batteries some time to charge? Maybe they were delivered to you fully discharged.
First one was on 85% the second on 60% or so. I kept the 1st one on charger for a whole weekend... Still nothing
Have you tried to callibrate the original battery (you say it suddenly drops if below 40%)?
Yes, I have allowed the battery to run down to 3% and the phone turning itself off. Then fully charged it while being off. So the original battery is just plain old, nearly 3y old. The problem is that the phone refuses to charge the new batteries regardless of original charge. Also it turns automatically on when you plug in a charger, not just showing the charge animation. That is not normal behavior.
olaf2k4 said:
Recalibrate how?
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Did you try to search?!
There is a thread on battery calibration (XDA, Huawei P9, Q and A
https://forum.xda-developers.com/showpost.php?p=75592069&postcount=18
zgfg said:
Did you try to search?!
There is a thread on battery calibration (XDA, Huawei P9, Q and A
https://forum.xda-developers.com/showpost.php?p=75592069&postcount=18
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I've done that after reading you'r message , but i have already done the steps not req root. And i'm not willing to root my phone.
P9 also not charging
Did you manage to find a resolution to this issues? I'm having the same problem with my P9. I changed my battery, and it now won't charge. It turns on ok, and everything seems to be working. When I plug in the charging cable, it makes the sound it usually does, the battery symbol flashes green but instantly turns white again. When the phone is off, plugging the cable in switches it on, but no charge. I've had two replacement batteries, both have the same issue. Also, the original battery is now doing the same. I'm wondering if I damaged something while removing the battery.
domj81 said:
Did you manage to find a resolution to this issues? I'm having the same problem with my P9. I changed my battery, and it now won't charge. It turns on ok, and everything seems to be working. When I plug in the charging cable, it makes the sound it usually does, the battery symbol flashes green but instantly turns white again. When the phone is off, plugging the cable in switches it on, but no charge. I've had two replacement batteries, both have the same issue. Also, the original battery is now doing the same. I'm wondering if I damaged something while removing the battery.
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I think it's problem in charging IC or port.
Hi all
Had same issue with replacement battery
After replacement battery isn't charging. Problem is in bad connections
(probably from long shelf storage connectors got rusty)
Voltage was fine but temperature reading was way off (very low -2) and phone didn't charge battery
Problem is that there was no error message about battery temp.
After cleaning the contactors battery reading became normal and it started charging
Anybody ever had any solution to this problem? I have the same issue. Battery replaced - not taking any charge. If micro USB charger plugged in - the phone turns on. If it is already turned on plugging in the charger the screen flashes the % of the charge and nothing.

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