Xiaomi Redmi 6 battery issue - Device Repair

Hello, two weeks ago my phone all of a sudden turned off and I can't turn it back on.
The only reaction I can get from it now is notification light turning on (instead of blinking) when charging. Also, when I use any vol + power combination when charging, the notification light blinks once and then goes back on. No vibration, no nothing. I tried charging it for a whole day with original charger (tried two xiaomi chargers).
I managed to tear down the phone, and plug off a battery from a motherboard. When I plug in a charger, with battery plugged off, the phone reacts exactly the same (no vibration, no screen activity, only notification led).
So my question is: could it be that the battery alone is faulty, or could it be something else? I will highly appreciate any help!

Related

Think my X1a is bricked... anyone had this before?

I was just listening to music from TF3D and all of a sudden the screen turned off, music stopped, and the power button at the top was glowing red for a few seconds. I tried turning it back on, removing and reinserting the battery, but nothing happens. I can't turn it back on at all!
One thing I do notice is if I remove the battery, and plug in the usb cable connected to my computer, the power button glows red, but I can't turn it on. If I insert the battery, and then plug in the USB, the button doesn't glow red.
How would I recover the phone?
dinan said:
I was just listening to music from TF3D and all of a sudden the screen turned off, music stopped, and the power button at the top was glowing red for a few seconds. I tried turning it back on, removing and reinserting the battery, but nothing happens. I can't turn it back on at all!
One thing I do notice is if I remove the battery, and plug in the usb cable connected to my computer, the power button glows red, but I can't turn it on. If I insert the battery, and then plug in the USB, the button doesn't glow red.
How would I recover the phone?
Click to expand...
Click to collapse
Try charging your phone for about an hour. The red light under the power button happened to me when i had used up all of my juice.
yeah i had the same problem and i had been very frightened of it...
just charge it...
Ah ok. Weird! Because when I was listening to music I had just taken it off the charger and it said 90% battery! And I had only listened to one song. I guess the battery meter was telling me false info =(
Thanks all
well maybe your battery was still kinda "new" so it wasnt showing correct data
a red light?
cool ... is this a phone or a light-generator?
it was the first pda with making so much noises by optical... but is good ...
Can anyone explain me how is the red light under the power button? The light doesn't come out from the illumination light, does it? I wanna see how is the light. Screenshot will be better.
It doesnt come out form the illumination light. It's by the power button. Usually it blinks when your battery is at 5% or close to total drained.
It´s a light that´s gives you battery error. I spent 2 days trying to figure it out because my phone wasn´t turning on and the red light was continuissly showin off, at the end it was because of a cheap wall charger (5V and 500ma, when SE uses 5v with 700ma) I just charged with SE wall charger and everything went back to normal.
In your case maybe one of you battery cells broke and that´s why it´s was at 90% giving you that hateful red light.
Here is a post conserning your problem:
http://forum.xda-developers.com/showthread.php?t=452402&highlight=red+light,+button
i think the battery is low quality fake..
i found out that the fasted way to charge your empty battery is:
1. remove your battery
2. insert you mini usb charger (NOT usb>mini-usb from your computer)
3. watch if the red light is on. (underneath your power button)
4. insert your battery.
5. after 5/10 minutes your X1 is working again.
you can do it by just plugging your charger on when it's empty but then it can take up to 2 days (YES, i have experienced it) to make your X1 working again.
another way is, just plug the wall charger to your x1 then leave it there. the x1 do not wake up that quick because the charge voltage goes up grandually/slowly for protect your battery and phone after the battery voltage same as charge voltage, then it can be charge normally*
Thank god that I read this topic yesterday. Otherwise I would have pissed my trousers because I had the same light today.

[Q] Droid 3 Turning on while charging, possible? LED Indicator, broken?

If my Droid 3 is off how do I turn it on while being connected and charged by usb cable?
The LED indicator light does not turn on even though the battery is <5% and the phone is off. Even at 0% there is no light.
The light only works if push my connector half way through and tilt the connector to trigger the light. But isn't this pointless?
turning it on while on the charger sucks i just keep pressin the power button lol and the light just blinks on when you plug the charger in it doesnt stay lit
I've found my phone won't startup unless there's a certain amount of power (this appears to be approx 10-15%), then the phone automatically restarts.
The LED charging indicator didn't work until I did the OTA upgrade. It will light up white when it's charging, but only when the phone is switched off, once it turns on, the light goes out.

Battery not charging even though phone recognises charger

I have a C6003 running 4.4 Stock with an unlocked BL and am rooted. The phone screen is cracked at the top third (not smashed, just 2 long cracks) and that third of the screen does not receive touch input, but still displays. Anyway, the phone is currently out of battery, when I try to power it on, I get either a flash of the Sony logo then 3 blinks of the red LED or just straight to the LED, which is normal. I plug it in to charge (tried several USB cable / wall plug combos, up to 2.1A etc.) and the red LED glows solid as it should. Even hours later it still will not power on and gives me the blinking LEDs...It was charging for a total of at least 7 hours and is still not turning on. I have had several battery issues recently but this is the most serious. I am sending my phone in for repair under insurance for the screen but need to back it up first! Any help is appreciated.
EDIT: Quick edit to add the fact that this same issue occurred yesterday as well but it eventually powered on with 15% battery, I used it and it would not charge and so that is why it is run down again. Even when powered on it would not charge, the LED did light and it charged for 5 seconds each time the cable was inserted, but after the 5 the LED would stop and it would stop charging. The phone knew the cable was there though as when it was inserted Stamina mode was disabled (as it should) even though it was not charging?
Roscobigfoot said:
I have a C6003 running 4.4 Stock with an unlocked BL and am rooted. The phone screen is cracked at the top third (not smashed, just 2 long cracks) and that third of the screen does not receive touch input, but still displays. Anyway, the phone is currently out of battery, when I try to power it on, I get either a flash of the Sony logo then 3 blinks of the red LED or just straight to the LED, which is normal. I plug it in to charge (tried several USB cable / wall plug combos, up to 2.1A etc.) and the red LED glows solid as it should. Even hours later it still will not power on and gives me the blinking LEDs...It was charging for a total of at least 7 hours and is still not turning on. I have had several battery issues recently but this is the most serious. I am sending my phone in for repair under insurance for the screen but need to back it up first! Any help is appreciated.
EDIT: Quick edit to add the fact that this same issue occurred yesterday as well but it eventually powered on with 15% battery, I used it and it would not charge and so that is why it is run down again. Even when powered on it would not charge, the LED did light and it charged for 5 seconds each time the cable was inserted, but after the 5 the LED would stop and it would stop charging. The phone knew the cable was there though as when it was inserted Stamina mode was disabled (as it should) even though it was not charging?
Click to expand...
Click to collapse
Check this thread out, it might just resolve your issue credits to @AhmedZadjali

Mi5 dead,only RED LED.

So one morning I woke up and saw phone keeps rebooting(bootloop).I had breakfast then came back to pick it up,and i connected it to charger and phone was totaly dead.I tryed other cables but still same result.Only way to power it on is when I use original cable and connect it to charger/pc.Then red led turns on and display showing low battery,and led keeps blinking.Sometimes it can boot into system and works for few minutes and shuts off cuz 0%.I changed battery but everything is same,I also can go into TWRP.
**I TRIED EDL MODE/two pins or whatever and my PC is not showing Qualcom driver or anything else in relation with phone
i had same issue before, i simply just buy new cable and it working again!!
PS. Before i buy new cable i already had 3 type-c cable bot non of them working
I had the same issue an hour ago. My MI5 had ~25% charge left when I saw it shutting off, maybe I unknowingly did it. Then I decided to leave the phone in TWRP at night but in the morning it appeared to be dead. The red LED blinked only when I pressed the buttons, no turning on, fastboot or booting into TWRP was possible. When I plugged it into the charger an empty battery icon appeared with the red LED blinking continuously. After some time a new animated battery icon appeared, in the still turned off state, but this time showing the exact charge percentage (2%). It went to 3% and I turned it on with the power button.
Should be a faulty battery which needs to be replaced!
Vivitsu said:
I had the same issue an hour ago. My MI5 had ~25% charge left when I saw it shutting off, maybe I unknowingly did it. Then I decided to leave the phone in TWRP at night but in the morning it appeared to be dead. The red LED blinked only when I pressed the buttons, no turning on, fastboot or booting into TWRP was possible. When I plugged it into the charger an empty battery icon appeared with the red LED blinking continuously. After some time a new animated battery icon appeared, in the still turned off state, but this time showing the exact charge percentage (2%). It went to 3% and I turned it on with the power button.
Click to expand...
Click to collapse
Remove back cover plug and replug the battery connector it qill solved (red light of death) if still happend you need to buy new battery

xperia sp doesn't turn on and red led blinking

Hi guys my xsp has gone to sleep since 2 days ago. it had low battery percentage and it was in my bag. i just pick that and tried to turn it on. nothing happened. i thought it is out of charge and I plugged it in for many hours but i didn't see any signs of charging ( led or turning on. red led turns on after some minutes and turns off again) and when i removed the charger and tried to turn it on the red led blinked for 2 times for each power button pressing and no signs of turning on! i tried both yellow button in the back and volume up + power and also setting in charge for long hours. no changes! plz help
you can see video from this link https://files.fm/u/47qk6fxj
you can try jumpstarting your battery (requires a bit of disassembly), and if it still doesnt take a charge the battery protection IC (it should be part of the battery, it usually is) is bad, and you will need to replace battery.
good luck

Categories

Resources