Related
My daughter fully discharged the tablet. Holding power button or with combination with either volume up or down will only show the empty battery icon and then quickly turn off after 3 seconds. So no recovery or download mode boot. I tried this after 1 hour of wall charging both plugged and unplugged.
Anyone experienced this? What steps did you do to fix this issue.
Sent from my LG-D802 using Tapatalk
marfillaster said:
My daughter fully discharged the tablet. Holding power button or with combination with either volume up or down will only show the empty battery icon and then quickly turn off after 3 seconds. So no recovery or download mode boot. I tried this after 1 hour of wall charging both plugged and unplugged.
Anyone experienced this? What steps did you do to fix this issue.
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
Not with the N7, but with other devices. I had eventually read in a few thread that the issue was sometimes fixed by removing the back panel, disconnecting the battery terminal clip & leaving it unplugged for an hour or so & then reconnecting the battery, replacing the back & charging (without turning it on or pressing buttons).
From experience with the N7, I can tell you the back is easy to remove & really requires no tool, as long as you can slide a thumbnail between the screen & the back body bezel. Just take caution, like rubber gloves (non-powdered) to avoid static discharge (risk is minimal anyway for most) & to also avoid getting oils on the copper sheeting used in the device for heat dissipation. I had touch screen issues that ended up being caused by a loose ribbon cable, so I have opened mine & I did it without tools & there were no seals I had to break. Take a look at the ifixit teardown for a better idea of how simple removing the back is & for the location of the battery terminal block, which really is right there once the N7 is open.
GSLEON3 said:
Not with the N7, but with other devices. I had eventually read in a few thread that the issue was sometimes fixed by removing the back panel, disconnecting the battery terminal clip & leaving it unplugged for an hour or so & then reconnecting the battery, replacing the back & charging (without turning it on or pressing buttons).
From experience with the N7, I can tell you the back is easy to remove & really requires no tool, as long as you can slide a thumbnail between the screen & the back body bezel. Just take caution, like rubber gloves (non-powdered) to avoid static discharge (risk is minimal anyway for most) & to also avoid getting oils on the copper sheeting used in the device for heat dissipation. I had touch screen issues that ended up being caused by a loose ribbon cable, so I have opened mine & I did it without tools & there were no seals I had to break. Take a look at the ifixit teardown for a better idea of how simple removing the back is & for the location of the battery terminal block, which really is right there once the N7 is open.
Click to expand...
Click to collapse
That's actually the other alternative I'm thinking. But seeing no screw to remove the back panel made me hesitant. I'll try that. Also will look at ifixit for demo.
Sent from my LG-D802 using Tapatalk
I've read that one has to leave it charging overnight.
My note 2 battery temperature sensor broke. Well whenever I put it on charge it says "charging paused battery temperature too high" it shows battery temperature at 60 degree Celsius but battery is very cold.
I have flashed few times with odin, factory reset etc., used a different battery etc. problem is still there. I also replaced the usb port reflex with new one. Took it to service center and they are insisting me to change the whole motherboard which cost 8k rupee, they said the problem is in motherboard part and not the usb port. I am in india and I took it to few electronic stores and they said they are not able to repair it.
So I was thinking how I can disable the security feature which prevents battery to be charged. I know my phone battery is fine and its just the sensor that's broke. I know the risks behind it but I want it done.
If someone can guide me which component needs to be replaced on motherboard or How the disable the security feature which blocks charging at high temperature. Where this file is located so I can edit it.
Sorry for bad english I am in hurry.
my phone is rooted so I was looking through all .xml's
there should be something like "stop charging when battery temp= 50 degree"
well I think I should go to some other forum, I thought this community was helping.
Hi all, my Nexus 5x wont charge but Red led is blinking and then nothing happens, I broke the originale LG type c cable and I left the phone discharged for 5-6 days until the new cable come, and now It wont boot nor charge with no cable or Wall charger combination, searched on web and found people saying to let It in charger overnight then try booting and similar things but nothing is working.
anyone here got this problem?:crying:
Hi, I had the same issue... and charging overnight will not fix your problem....
it happened 5/6 times to my phone, the only way to make it works, was to pull out- pull in the original charger, and after 10/20 times you do this, it will work again.
I bring it to LG assistance and they told me that sometimes, all the updates and the full memory (mine was not full, but 17gb over 32) made this. I didn't believe that, BUT an hard reset of the phone and it never happened again in 3 months
Hope it will work for you too
dimostar said:
Hi, I had the same issue... and charging overnight will not fix your problem....
it happened 5/6 times to my phone, the only way to make it works, was to pull out- pull in the original charger, and after 10/20 times you do this, it will work again.
I bring it to LG assistance and they told me that sometimes, all the updates and the full memory (mine was not full, but 17gb over 32) made this. I didn't believe that, BUT an hard reset of the phone and it never happened again in 3 months
Hope it will work for you too
Click to expand...
Click to collapse
Thanks, I will try, but how much time do I have to wait before pulling out and pull in again the charger?
Can anyone help me please?
I had the same. I forget about phone and left it with TWRP running. It drained all my battery and phone wont turn at all. I had this same red LED, so i plugged phone to charger and after maybe 2 hours it turned back on (charging screen), wnother hour and my nexus was fully restored with full charge.
Also i recommend you to get original charger and original usbc cable. Also before it you can hold power button for 30 sec. In some Xperia phones even a few days can do a trick.
Finally understanded the problem Thanks to "Dusan Milanovic"
In my case it was:
- 50% Battery problem
- 50% Qualcomm Power IC Chip
How I solved it:
I AM NOT RESPONSIBLE FOR EVERY DAMAGE YOU MAKE TO YOUR PHONE, HOUSE, GRANDMA.
REQUIREMENTS:
- Alluminium foil (biscuit metallic paper) not plastic
- Hairdryer (It seems stupid ahah)
- Chronometer
- Attention!
- A bit of patience
BATTERY PHASE
- Open the Phone and remove Fingerprint board.
- Remove the Battery.
- Put the battery on an universal charger.
(do this only if you are sure that the battery is discharged and don't want to charge)
Let it charge for an hour more and less.
POWER IC CHIP. PHASE
- Remove the metallic protection between the camera and the battery slot.
- Look for a black chip surrounded by little grey chips. (POWER IC)
- Protect everything in the motherboard with the Alluminium foil except for the black chip.
BE VERY CAREFUL, PROTECT EVERY SINGLE GREY CHIP NEAR THE POWER IC CHIP.
-Prepare the Chronometer 1 minute.
(NOT MORE THAN 2 MINUTES OR YOU MAY SERIOUSLY DAMAGE THE MOTHERBOARD)
-Use the Hairdryer to heat the POWER IC CHIP
(DO NOT USE HEATGUN). The chip needs to reach around 100°C
-After you heated the chip let it cool down for a minute or two
-Remount the metallic protection.
LAST PHASE
- Put the battery on the phone
- close everything
- Try to boot it
ALL DONE?:highfive:
POSSIBLE PROBLEMS
- always shows 100% battery. → buy a new battery( this one is Dead)
-Doesn't boot.↓
→Are you sure your battery is charged?
No: charge it externally (BE VERY CAREFUL THIS COULD BE VERY DANGEROUS)
Yes: then try to heat again the POWER IC CHIP (2 MINUTES MAX)
→Still nothing?
- Buy a new Battery, this is the best choice.
- If even after you use the new Battery the Phone doesn't boot , just heat again that pain in the ass of a ic CHIP.
MounirHero said:
Finally understanded the problem Thanks to "Dusan Milanovic"
In my case it was:
- 50% Battery problem
- 50% Qualcomm Power IC Chip
How I solved it:
I AM NOT RESPONSIBLE FOR EVERY DAMAGE YOU MAKE TO YOUR PHONE, HOUSE, GRANDMA.
REQUIREMENTS:
- Alluminium foil (biscuit metallic paper) not plastic
- Hairdryer (It seems stupid ahah)
- Chronometer
- Attention!
- A bit of patience
BATTERY PHASE
- Open the Phone and remove Fingerprint board.
- Remove the Battery.
- Put the battery on an universal charger.
(do this only if you are sure that the battery is discharged and don't want to charge)
Let it charge for an hour more and less.
POWER IC CHIP. PHASE
- Remove the metallic protection between the camera and the battery slot.
- Look for a black chip surrounded by little grey chips. (POWER IC)
- Protect everything in the motherboard with the Alluminium foil except for the black chip.
BE VERY CAREFUL, PROTECT EVERY SINGLE GREY CHIP NEAR THE POWER IC CHIP.
-Prepare the Chronometer 1 minute.
(NOT MORE THAN 2 MINUTES OR YOU MAY SERIOUSLY DAMAGE THE MOTHERBOARD)
-Use the Hairdryer to heat the POWER IC CHIP
(DO NOT USE HEATGUN). The chip needs to reach around 100°C
-After you heated the chip let it cool down for a minute or two
-Remount the metallic protection.
LAST PHASE
- Put the battery on the phone
- close everything
- Try to boot it
ALL DONE?:highfive:
POSSIBLE PROBLEMS
- always shows 100% battery. → buy a new battery( this one is Dead)
-Doesn't boot.↓
→Are you sure your battery is charged?
No: charge it externally (BE VERY CAREFUL THIS COULD BE VERY DANGEROUS)
Yes: then try to heat again the POWER IC CHIP (2 MINUTES MAX)
→Still nothing?
- Buy a new Battery, this is the best choice.
- If even after you use the new Battery the Phone doesn't boot , just heat again that pain in the ass of a ic CHIP.
Click to expand...
Click to collapse
I followed you steps and successful got it to work , but now it is showing that charger is pluged in but not charging, the charging symbol comes bit of does not charge , I even went into cpuid and saw that the status was not charging but plunged in ac power , I am ready to buy a new a battery but will it solve my issue of is it a pin connector issue
dimostar said:
Hi, I had the same issue... and charging overnight will not fix your problem....
it happened 5/6 times to my phone, the only way to make it works, was to pull out- pull in the original charger, and after 10/20 times you do this, it will work again.
I bring it to LG assistance and they told me that sometimes, all the updates and the full memory (mine was not full, but 17gb over 32) made this. I didn't believe that, BUT an hard reset of the phone and it never happened again in 3 months
Hope it will work for you too
Click to expand...
Click to collapse
MounirHero said:
Thanks, I will try, but how much time do I have to wait before pulling out and pull in again the charger?
Click to expand...
Click to collapse
I got the same issue tried changing battery but nothing changed
When phone turns on backup your files when you are in time
dimostar said:
Hi, I had the same issue... and charging overnight will not fix your problem....
it happened 5/6 times to my phone, the only way to make it works, was to pull out- pull in the original charger, and after 10/20 times you do this, it will work again.
I bring it to LG assistance and they told me that sometimes, all the updates and the full memory (mine was not full, but 17gb over 32) made this. I didn't believe that, BUT an hard reset of the phone and it never happened again in 3 months
Hope it will work for you too
Click to expand...
Click to collapse
HARD RESET instructions or link you followd that worked drop below
I just had the same thing happen. Using the original charger I kept on charging then trying again and again. I would leave it overnight unplugged from the charger. I think the battery was draining due to screen not coming on but phone booting over and over. Finally after about 6 times, I saw a battery symbol, then pressing power it came on as if everything was just fine.
I found another way, though be careful. Repeatedly unplugging/replugging did not help. Disassembled phone (lots of guides), unplugged battery. Measured 2.96v - too low for lipo. Used lipo charger (100mah) to boost charge to 3.2v. Reassembled, and it charged OK.
Cause is probably voltage dropped below the low charge threshold for lipo charging cct onboard. Lipos are very tricky to charge - lots of papers on this. In theory Nexus should have shut itself down before voltage dropped that low - but it didn't. Design flaw.
i had red blinking but battery was empty.
since in bootloop it will not charge, after i repaired reflow and patched the boot
to 4 core it worked perfect.
so if someone comes here and wonders, it might not be the charging chip
just the battery empty
Hey guys, so this morning my OP3 was dead, so far nothing out of the ordinary, I figured it could be empty by now.
But it won't charge. Not on a power bank, not on the official charger, not on USB.
When a cable is plugged it turns on automatically, shows 50% battery charged symbol, before going black, no charging led on.
Sometimes it will post the low battery warning for a short moment before, with the charging led on, then proceeding as above.
My device is unlocked, so I have the usual 5-second boot menu, if I choose to restart, it won't boot, but always come back to this menu after the 5 seconds passed, I don't get until the boot animation.
The device is running LOS 15.1, Franco Kernel, newest Magisk, and TWRP. I tried getting into TWRP to let it charge there, but I don't get past the TWRP animation.
I do however get into fastboot and it will sit there without a problem.
I did open the device and measured the battery, it is somewhere around 3.5-3.6V, that leads me to believe it is in fact not empty and I have a different problem here. I thought they discharge at least down to 3.3V
EDIT: I discovered, that without a cable it will not even turn on, show low battery or anything. The battery connector seems ok and the battery measures 3.59V
Any suggestions? Thanks a lot already
Try this. https://forums.oneplus.com/threads/guide-mega-unbrick-guide-for-a-hard-bricked-oneplus-3.452634/
Hey man, thanks for the reply. You think this might be what i am looking for? A software issue? I mean i can get into fastboot on a cable. My concern is the phone not responding to a power button press without being connected to a cable at a half full battery. not a damaged power ic chip or something?
felixchris said:
Hey guys, so this morning my OP3 was dead, so far nothing out of the ordinary, I figured it could be empty by now.
But it won't charge. Not on a power bank, not on the official charger, not on USB.
When a cable is plugged it turns on automatically, shows 50% battery charged symbol, before going black, no charging led on.
Sometimes it will post the low battery warning for a short moment before, with the charging led on, then proceeding as above.
My device is unlocked, so I have the usual 5-second boot menu, if I choose to restart, it won't boot, but always come back to this menu after the 5 seconds passed, I don't get until the boot animation.
The device is running LOS 15.1, Franco Kernel, newest Magisk, and TWRP. I tried getting into TWRP to let it charge there, but I don't get past the TWRP animation.
I do however get into fastboot and it will sit there without a problem.
I did open the device and measured the battery, it is somewhere around 3.5-3.6V, that leads me to believe it is in fact not empty and I have a different problem here. I thought they discharge at least down to 3.3V
EDIT: I discovered, that without a cable it will not even turn on, show low battery or anything. The battery connector seems ok and the battery measures 3.59V
Any suggestions? Thanks a lot already
Click to expand...
Click to collapse
i had the same problem a few months back.
Flashing helped me resolve this..although i has to reflash 2-3 times
Okay guys for everyone that has this problem in the future:
It is possible that your battery is not properly connected, check that first. The behavior basically suggests that your device believes it has no battery.
For me it turned out to be a blown chip that is related to Voltage Ampflification/Control. In the end I swapped mainboards with a smashed device from ebay. about 70€
There are 3 possible solutions for this issue.
1: replace battery.
2: change the ROM for one that changes the Kernel for a version without this temperature protection.
3: fix or replace the main board.
To fix the main board you need to check 2 things on it.
On the left side of the battery connector (under a double sided glue tape foam), there are some SMD. The lowest two are related with this problem. I fix my board resoldering the one on the right (nearest to the connector). Be aware that the SMD is small and when are desoldered, it gets sticked on the double sided glue tape foam. I took a picture of it, but i don't know how to insert here.
JUMP TO SOLUTION
Hi everyone,
My phone (almost 2 years old, changed LCD for three times) started to lose a lot of its battery capacity from a month ago, and since yesterday I realized something's wrong with it, as it had some trouble charging the battery. At first, I was using my phone and its battery was around 20%, and then as soon as I connected the charger (genuine fast charge) it turned off and the red LED indicator kept turning on and off and refused to charge. then after a reboot, it started charging again, and then I left it charging at the night and at the morning I realized it only charged to 60% and the red LED didn't turn on at all. And now that all the battery is drowned out it's not charging at all and drawing no current from the charger ([email protected]).
Has anyone had any experience with it before? Is this a battery problem or the USB charging port flex cable which has some ICs on it (example)?
I'd appreciate your answers.
I can't tell from your story that you tried another charger ? I recall a similar charging issue from my HTC One X a few years back.
Replaced the charger and all issues disappeared.
Mr Hofs said:
I can't tell from your story that you tried another charger ? I recall a similar charging issue from my HTC One X a few years back.
Replaced the charger and all issues disappeared.
Click to expand...
Click to collapse
Yes I have, Also seconds before it ran out completely I tried to check if adb works. connected it to my laptop and on the bootloader mode the adb recognized the device but the red LED didn't light up.
m.m.m said:
Yes I have, Also seconds before it ran out completely I tried to check if adb works. connected it to my laptop and on the bootloader mode the adb recognized the device but the red LED didn't light up.
Click to expand...
Click to collapse
That's correct because a device doesn't charge in bootloader mode. Only off state, running OS or Dr TWRP recovery.
If you tried a different charger it can be pretty much only down to hardware, can't give any advice at that level.
Mr Hofs said:
That's correct because a device doesn't charge in bootloader mode. Only off state, running OS or Dr TWRP recovery.
If you tried a different charger it can be pretty much only down to hardware, can't give any advice at that level.
Click to expand...
Click to collapse
Oops, I meant recovery mode.
does the device charge in the stock recovery?
m.m.m said:
Oops, I meant recovery mode.
does the device charge in the stock recovery?
Click to expand...
Click to collapse
I'm afraid not, only the custom one.
I had almost the same problem with my phone. I sent it to a repair center and acording to their report, the circuit which is responsible for the monitoring of the charging process had a loose connection. Maybe because I dropped the phone a few times. Unfortunatly the circuits of modern phones are all on the same circuit board, so they had to change the whole motherboard of the phone. But now everything works fine.
So I just opened the phone and disconnect/reconnected the battery connector and it eventually started charging with the stock charger, but it charged up to 60% and then stopped. retried the same steps and no luck this time. then I tried charging the battery with an external li-ion charger (I know it's a dangerous task )
this time it charged up to 4.11 volts and then I turned on the phone and again the battery dropped to 60%. so I believe the battery is really dead and needs replacement. I'll update you when I replace it.
KingGong said:
I had almost the same problem with my phone. I sent it to a repair center and acording to their report, the circuit which is responsible for the monitoring of the charging process had a loose connection. Maybe because I dropped the phone a few times. Unfortunatly the circuits of modern phones are all on the same circuit board, so they had to change the whole motherboard of the phone. But now everything works fine.
Click to expand...
Click to collapse
Turns out I was wrong, my case was similar to yours. had to waste $9 on a battery to find out
it just fixed by disconnecting/reconnecting the USB connector bottom of the board, but I don't know how the flex cable for the back button got cut so now I have to replace the whole bottom circuit ($17 approx.) :crying:
m.m.m said:
Turns out I was wrong, my case was similar to yours. had to waste $9 on a battery to find out
it just fixed by disconnecting/reconnecting the USB connector bottom of the board, but I don't know how the flex cable for the back button got cut so now I have to replace the whole bottom circuit ($17 approx.) :crying:
Click to expand...
Click to collapse
So I went through the hurdle of replacing my battery and charge port, and the battery transplant went well, went from 70% to 100% battery health (yay!).
The first charge port I purchased (this is all eBay stuff) had a busted Recents button (copper trace in ribbon cable was nicked - when the part was removed from original phone for sure), so I complained and got a replacement; second one works well.
And because all bad things come in threes, the phone developed an echo (on the opposite side of the conversation) which I think I caused by ripping a bit of the mic rubber isolator which points towards the mic hole in the battery cover.
I believe I fixed it (still testing) by glueing some foam padding on the backside of the mic (on the charge port PCB, facing the battery cover).
Long story short, opening up the phone is a b###h, so do multiple repairs together, be careful not to break anything else (easier said....).
Good luck, let us know how it went.
So here's an update, First of all, I'm pretty happy with the battery replacement, It can hold like 10 hours of my usage while the old one could handle up to 6-8 lately, it's unbranded, and I got it from a local phone part store.
Second, the replacement for the charger flex turned out to be pretty good quality, and I've had no problems with it so far. I got it for $11 from AliExpress, but now it's about $10.5. But when I replaced everything and tried to reassemble the phone and tighten the screws it showed up with charging problems again, and I tried disassemble/reassembling the phone and reconnecting the charger flex, and the next time it charged but with no fast charge, so in the next try I also tried cleaning the flex connector with cleaning alcohol, and for the third try it finally started charging with no problems.
So now after like 2 weeks, it's had no problems so far.