Hello!
I used a car charger for Lenovo A806, which seemed not to work, as battery drained and at last reached 0% and the phone turned off.
Now (the same day), even by using the plug charger (which worked perfectly the previous days), the phone will not turn on.
The normal battery voltage is 3,8 volts and normal charge voltage is 4,35 volts. However, a voltmeter shows the battery having almost 2,9 volts (as it is 0%).
I removed the battery and connected the phone to the charger. I measured the voltage at the battery pins in the phone and it shows under 3 volts, when it should be 4,35 volts, according to the phone specifications.
I cannot check the battery on another phone because it has different size.
Can there be a solution to this problem? Any answer welcome.
Thank you
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I have read that wiping cache partition sometimes can solve problems like this.
But the recovery mode (Vol Up + Power) is in Chinese.
Which is the option for wiping cache partition?
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The phone finally turns on and loads normally with full battery. But it cannot charge it. For example, when it is plugged in, the message on the screen is:
...
...
Charging 80%
Charging 79%
Charging 78%
...
...
And finally it turns off...
Related
I was wondering if this is normal for the Raphael (I have a fuze) to charge VERY slowly..ive always charged via usb and read somewhere that usb does a trickle charge (i never knew this) so i tried an ac charger and still same thing..my kaiser (tilt) charged full in a few hours..this thing charges maybe half way in 2 or 3 hours...any ideas?
I have had my device plugged in (i.e. not USB) for a couple of hours now. The charge has gone up from about 30% to 88% and seems to have stopped there.
Usb charging takes much longer than charging via AC. My phone will go empty -> full battery in maybe 4 hours on AC power, and will not fully charge in 6 hours using usb.
Also, I have a setting where the screen doesnt turn off for 30 minutes when plugged in, plus much brighter. If this is the case and I am playing with the phone plugged in it takes even longer still (i.e. when I am charging at work).
dg252: It is possible that your battery may be charged, but the battery indicator is stuck. Let it charge till the LED stops pulsing, then soft reset.
I've found that the provided charger work very quickly, however standard mini-usb chargers or usb leads will take forever to fuly charge, if they do ever reach a full charge. I think I read somewhere that the provided charger works at a slightly higher ampage.
I recently bought a chinese tablet (Sumvision Cyclone Voyager). I found that it wont charge past 92%. After much research i discovered that the problem can be fixed by one of the following:
-removing the battery
-wiping battery in CWM
-Full discharge until off, remove battery, hold power 30 seconds, replace battery charge to 100%
But most of these things require removing the battery or using CWM. What if the battery is non-removable? Or you cant get CWM for you model?
FIX for LiPo non removable (very simple)
I found the fix is:
1. Full discharge until it turns off
2. Full recharge while off until it stops charging ( will prob get stuck at the last bit (92% in my case but when off it dosnt give percentage just keeps showing animation for last 1/3 of battery to be charged)
3. Remove charger and power on the device. Use it until it drops below 80%
4. Recharge again while its on until it gets stuck at X% (92% in my case)
5. This is the important part: while its stuck charging remove the mains plug from the socket on the mains while leaving the connector plugged into the device (dont turn switch off at wall actually unplug the ac adaptor from the mains socket)
6. wait 30 seconds and plug it back in to the mains socket.
-Leave and see if it charges. It may not work the first time. For me it worked on the 3rd attempt.
I have had my phone plugged into mains using official 2Amp charger but charge is not increasing. Even in battery stats page it shows it has been charging for 2 hours. If i unplug and use phone then charge drops and stays dropped.
What should i do?
This seems to have started after I flashed the newer 241 modem, would that cause this??
Solved.
Solved. was a faulty cable
I have a mate 7 that is about 3 years old now.
The battery ran out at >5%, and never turned back on again.
Even when plugging into charger, nothing happens, no light, no vibrate, nothing, complete stillness.
No matter what buttons I press the phone is completely off.
I opened the phone and checked the battery and measured some test points.
The 5V is present when I plug in the usb charger, and the battery measured at 3.6V.
What is strange to me is that even when I plug in the charger, the battery voltage doesnt increase (charger).
Any suggestions? Any ideas? Any other tests I can do?
Edit: Should the phone turn on without the battery and only with charger?
Hi everybody,
it's a few days I have weird problem with SuperCharge.
I apologize for the lenght of this post, but I don't want to miss any detail that could help in solving my problem.
I recently replaced the battery with a new original one (I hope) bought from an eBay seller.
When I switched-on the smartphone, battery level was 58%. So, I used it normally and, when battery level lowered at 30%, I plugged-in the charger.
Completed the recharge, I used the phone as always.
At night, with 30% of battery level, I plugged-in the charger and I went to sleep.
The next day, in the morning, I turned on the screen and the battery level was 32%. I was confused... So, I un-plugged the charger, plugged it in again and the phone needed just few minutes to fully charge at 100% (very weird).
Then I normally used the phone for the entire day.
At night, with 30% of battery level, I plugged-in the charger and I went to sleep.
The day after in the morning I turned on the screen and again the battery wasn't fully charged. It was only 34%.
This time I unplugged the charger and I restarted the phone. After that, it showed 100%. So, in reality, the battery was fully charged!
This made me think it could have been a software related problem: so, I performed a Wipe-Cache-Partition and a battery re-calibration process.
After that, I noticed the charging process was slower, although the phone shows "Super-Charge" in the lock-screen.
So, I wanted to monitor the charging process with Ampere and this is what happens:
- as soon as I connect the charger, for the first few seconds the charging rises to about 4000mA (as it should);
- suddenly the charging stops, as if I disconnected the charger. At the same time, the battery temperature rises for one second to 44/45 ° C and then quickly returns to 32/34 ° C.
- after a few seconds, the phone starts charging again, but at 1600/1700mA.
- cyclically, therefore, the phone tries again to increase the charging to 4000mA, but, as soon as it reaches the peak, the same phenomenon described above is repeated.
I noticed that the charger overheats while charging.
I replaced the USB-C 5A cable, but the problem persists, so it's not cable related.
If, on the other hand, I use a non-5A USB-C cable, the phone recharges in FastCharge mode (2A) without interruptions and the charger does not heat up.
So, the problem exists only with SuperCharge.
Do you think the charger is defective?
Or is the new battery defective?
I thank in advance anyone who will help me. :fingers-crossed:
I noticed a similar problem with super charge.. When plugged in for charging, super charge doesnt show.. It takes super long to charge to even 50%.. So i tried other cables as well and same issue.. I restarted the phone a few times and then switched it off.. Plugged charger in and left it over night. I noticed the next day super charge was functioning correctly