Dead redmi note 2 - Redmi Note 2 General

Hi guys
Few days back my note went dead completely. It does not respond to any measures. Even after keeping it plugged to the charger for an hour there seems to be no change in its condition.
A month ago I had dropped it and the screen went kaput. That's the only physical damage that the phone has experienced.
Pls help me out.

it's absolutly a hardware damage (and I doubt the power IC) but firstly make sure that battery isn't bad and try with another battery....if you've some DIY basics you could try to measure the resistance between battery - and + socket in the main borad if there is any short.

Well... Try taking the battery off and placing it back, and try a completely different charger...

Related

short circuited my note

Hi everyone,
First of all, I apologize in advance,
1. Because I know this isn't a tech support forum.
2. Because I don't contribute and help out as much as I should.
Coming here was a last resort, I don't consider myself a noob, but I'm really stuck here.
Please note that I appreciate every single response, and I will donate if anyone can give me a fix.
With that aside, let me get started
__________________________________
Okay so about a week ago, I accidentally bent my charger when it was charging my note.
It didn't charge at all that night
That morning, I blew into the charge port on my note, suspecting that dust may have been the cause.
Somehow, that helped, as my note charged fully that day, in about 2-3 hours
Then I tried charging it the next night.
It charged incredibly slowly, reaching about 70% after 10 hours charge
The next few nights were similar, but reaching no more than 40% charge after 10 hours.
It got progressively worse, it would only charge if I applied pressure to the mini-usb,
I looked around this morning, and stumbled across another guy with the same problem
(see here http://www.galaxynoteforum.net/galaxy-note-help/charging-port-issue/ )
He advised,
"Well I have figured out the issue. If you look into the charging port slot on the phone you will notice a small thin flat piece of metal which inserts into the charger. That was slanted and angled downward which would not let "ANY" charger or docking station charge correctly also causing it to drain the battery. Contacts on this piece and the phone were to close causing a minor contact draining power. I used a precision flathead screw driver and lifted the piece slightly and now works fine"
So I tried that, and it seemed to help, as the note began charging, (extremely slowly, reaching about 30%)
Then I tried pushing that "thin flat piece of metal up even further"
However, I went too far, and I couldn't fit the charger into the charge port.
So I tried pushing it back into the centre but I may have damaged one of the pins in the charge port (inside the phone)
I seen a little spark, and the note turned off.
I tried switching it on, and managed to boot to safe mode (no idea how)
So then I tried charging it, I applied pressure and managed to get it to start charging. (thank god)
This was about 30 mins ago, it looks to be holding the charge at about 20%, but it's not increasing
-----------------------------------------------------
I suspect one of the pins in the note charge port was snapped off.. although I'm not sure.. (it appears to be the one on the right)
1.Does anyone know how many pins there are on the charge port inside the note? (is it 4 or 5?)
2.What should I do?
If I broke a pin, it should not charge at all, right? (but it seems to be charging)
3. Do I need to replace the charge port, if so, how much would it cost?
4. Would I be better off getting a charging station, and charging the battery using that
5. Should I try moving the metal strip again? (inside the charge port of the note)
oops forgot to mention, when the problem started, and the note was slow-charging, an audible buzzing/humming could be heard in the wall outlet
also, I'm using my original samsung usb charger, not a generic one, and I'm charging directly into a wall outlet.
------------------------------------------------------------------
Thank you for taking the time to read this, I really appreciate it, and any advise that you do offer.
Cyber735
Here my tipp: You can go to a service center, maybe they even repair it under warranty. Or you can order a new micro usb port and replace it. Google should help you to find a seller. Depends on whether you feel comfortable enough to replace it yourself or not. Oh one more thing, I would stopp using your Note to avoid any further damage.
Sent from my Galaxy Note running ICS
there are 5 pins on the charger slot, 4 I believe are for data transfer and the 5th being the one that draws power (charges the phone)
Have you tried transferring data from PC to Phone and see how that pans out ?
Its possible to replace the USB port, Ive seen a few threads about this on XDA, A quick search should chuck out some results.
But as mentioned above, Try to claim under warranty first, if you have it, or pay the Service centre to do it if you dont feel confident enough to do it yourself.
I think I recall someone with a similar issue and it cost him / her $60 for USB replacement (convert that in to your currency)
If you have a friend with a Note or a phone that fits the Note's battery you could always charge your battery in that phone and place it into yours until you get it fixed.
IF YOU MUST charge your Note ( you could if you intend to get a new USB slot) I would suggest to charge only via USB - as in charging from your PC / Laptop / TV / PS3 etc. As this will not draw as much current as it would coming directly from the mains supply!
Good luck on getting it fixed, And please keep us posted with the results !
http://pinoutsguide.com/PortableDevices/micro_usb_pinout.shtml
check this out. It gives the pin configuration. I am no expert but hope it helps!
altae said:
Here my tipp: You can go to a service center, maybe they even repair it under warranty. Or you can order a new micro usb port and replace it. Google should help you to find a seller. Depends on whether you feel comfortable enough to replace it yourself or not. Oh one more thing, I would stopp using your Note to avoid any further damage.
Sent from my Galaxy Note running ICS
Click to expand...
Click to collapse
r
Thanks for the quick reply!
First of all, I can confirm that no pins are broken or bent, everything looks normal, it also seems to be charging better, as I centred the metal strip in the charge port.
As for warranty, well I didn't purchase any extended warranty or insurance, however, the standard warranty lasts 2 years.
Unfortunately
The Repair Warranty Exclusions are as follows: (i) Subject to the inclusions of the applicable manufacturer's warranty, a mobile that has broken down or is damaged as a result of: (a) abuse or tampering, (b) electrical damage, moisture, dampness, oxidation, corrosion or food, dirt or liquid ingress (c) accident, neglect, impact, actual or attempted theft, fire, power outages or surges, or incorrect voltage, (d) transportation or packaging (e) removable batteries or damage caused by battery leakage
Basically, the only thing that I'm covered for is "handset breakdown"
My phone is in perfect condition, and no pins are broken or bent (as discovered on closer inspection)
So do you class charging issues as "handset breakdown" or not?
I may purchase a new charger, just in case the issue is with the charger, and not the phone,
What d'ya think?
Thanks again for the quick replies azzledazzle & nipuna, I didn't notice them until now,
Yeah I'm 90% there's no damage to the pins on the charge port, and it seems to be charging now, slowly at least,
I've centered the metal strip as best as I can, (inside the charge port)
I'll leave it to charge now for a while, as I'm not sure if it's fixed or not
Then I'll try another charger if it doesn't work
If all else fails, I'll try getting it repaired under warranty
(although that's more of a last resort, as it will take a few weeks to get my phone back)
does anyone know if the standard galaxy s2 charger will work on the note?
I don't have it on me now, although I could borrow it from a friend
I know its an official samsung charger, although not sure if it's the usb or the other kind.
I'll let it charge for a while, then I'll try transferring data from the laptop, to make sure the pins are fine,
thanks for all your help everyone,
1st of all: if you go poking around in the usb port with a metal screwdriver, take out the battery first. Not only will it avoid shortcutting and maybe blow a fuse inside the phone, but it will also protect you from an exploding battery when shortcutted !
S2 charger will work
Sent from my GT-N7000 using xda premium

[Q] Red light of death and it's consequences

The way the story goes:
My girlfriend drops her N4.
The screen breaks and I replace it.
About two weeks pass and she gets the red light of death.
I do some homework, read few threads, watch few videos and try everything I found before I take device apart again.
Try pushing all the buttons I read about, while plugging the charger, while unplugging and standing on one foot and singing "Mary Had a Little Lamb" and other voodoo. No success.
Taking the back cover off and unplugging the battery. Connecting it back, closing the N4, try to power it up but no signs of life.
Suddenly I realize the device is very hot. VERY hot. I start taking it apart again, unplug the battery and let it cool. After that I plug the battery back again leave the back cover of, to check if the powering up process made it so hot. Well, no. After about 15 seconds I begin to feel the heat.
I decide to blame the battery from my own N4. I take my own N4 apart, try to get the battery out, but while doing it I damage the battery and it starts smoking. So now my device is officially dead too. My N4 battery goes to the trash and I think "whatever... I'll try her battery on mine.". I plug it in and the N4 stays cold for few minutes, I close the back door and it powers up flawlessly and now runs for few hours.
Since I she bought the N4 in the US she had no warranty here where we live, so that's the reason I changed the screen myself which voids any chances for RMA even if could figure a way to get it back the the US.
Meanwhile I ordered a new battery for myself.
Do you guys think it the logic board that's dead (If so, should I replace it?)? Maybe other part that just does short circuit? Maybe the battery got f***ed during the screen replacement and it just took time to kill the entire phone with overcharge or something? Any other ideas I didn't lay my mind on?
Thanks in advance for your replies!
dndcb said:
The way the story goes:
My girlfriend drops her N4.
The screen breaks and I replace it.
About two weeks pass and she gets the red light of death.
I do some homework, read few threads, watch few videos and try everything I found before I take device apart again.
Try pushing all the buttons I read about, while plugging the charger, while unplugging and standing on one foot and singing "Mary Had a Little Lamb" and other voodoo. No success.
Taking the back cover off and unplugging the battery. Connecting it back, closing the N4, try to power it up but no signs of life.
Suddenly I realize the device is very hot. VERY hot. I start taking it apart again, unplug the battery and let it cool. After that I plug the battery back again leave the back cover of, to check if the powering up process made it so hot. Well, no. After about 15 seconds I begin to feel the heat.
I decide to blame the battery from my own N4. I take my own N4 apart, try to get the battery out, but while doing it I damage the battery and it starts smoking. So now my device is officially dead too. My N4 battery goes to the trash and I think "whatever... I'll try her battery on mine.". I plug it in and the N4 stays cold for few minutes, I close the back door and it powers up flawlessly and now runs for few hours.
Since I she bought the N4 in the US she had no warranty here where we live, so that's the reason I changed the screen myself which voids any chances for RMA even if could figure a way to get it back the the US.
Meanwhile I ordered a new battery for myself.
Do you guys think it the logic board that's dead (If so, should I replace it?)? Maybe other part that just does short circuit? Maybe the battery got f***ed during the screen replacement and it just took time to kill the entire phone with overcharge or something? Any other ideas I didn't lay my mind on?
Thanks in advance for your replies!
Click to expand...
Click to collapse
so judging from your experiences it is not a dead battery that causes the red light of death problem?
i am wondering because i too have red light of death on my 2nd batch nexus 4 (ordered 11/27/12, delivered december 13 2012) and i too took it apart and removed battery for charging, this did nothing but i have a new nexus 4 coming from rma and i would like to swap the batteries and see if that will help because i would like to wipe the phone im sending back but idk if thats possible
ae1990 said:
so judging from your experiences it is not a dead battery that causes the red light of death problem?
i am wondering because i too have red light of death on my 2nd batch nexus 4 (ordered 11/27/12, delivered december 13 2012) and i too took it apart and removed battery for charging, this did nothing but i have a new nexus 4 coming from rma and i would like to swap the batteries and see if that will help because i would like to wipe the phone im sending back but idk if thats possible
Click to expand...
Click to collapse
I ended up getting a used motherboard from ebay for about 100$ and replacing it. Still works like a charm.
But I can't promise you anything, since it may be any other part that causes a short circuit and burns it. I just took my chance.
For me unfortunately the RMA wasn't an option.

[Q] Battery expanded and broke glass back

Before anyone go crazy, it's most likely my fault. Since the battery is superglued to the phone I had to bend it pretty hard when I replaced the screen. And it was probably damaged
Anyway 6 month later my battery expanded and broke the glass back. There is a very visible bulge on the back (~1/16" thick), on a flat surface the phone wobble. I don't know when or how it happened, at some point I got the phone out of my pocket and it was broke.
I have a strong suspicion it happened while using a 2.4A/12V car charger at -25°C.
My real question (TL;DR) : Is there a risk using a 2.4A/12V car charger ? (my previous one was a 1A and it was barely charging the phone)
Doesnt matter what the current output of the charger is. The device has current limiting technology. It will max out at 1A so if your using a 2A charger your fine.
Also the car puts out 12VDC but it gets stepped down to 5V at the micro usb port. Thats the industry standard.
Now when you bent your battery you started the process of damaging it. Li-Ion batteries have a very thin sheet with paste on it and that is wound up with many layers. By bending it you probably flexed the thin sheet and that soft spot eventually broke and when that happens a chemical process begins to break down the battery. The bulging you are seeing is a buildup of gasses inside the sealed battery its self. When a battery begins to bulge its going bad. This can also happen prematurely if you expose it to over heating repeatedly OR for a long period of time, OR if you allow the battery voltage to drop to low for to long. Li-Ion just doesnt like heat or low voltage.
I concur with IAmSixNine you need to either replace the battery or get a new phone. And be sure to dispose of it properly. I had the same problem years and years ago with an old HTC touch diamond. The battery started bulging and I eventually had to remove the cover and use tape to hold it in. After a couple weeks it burst and it wasn't a pretty site... Pretty dangerous carrying around a battery that could explode in your pocket at any time.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Thanks, good to know that the charger can't damage the battery, I have purchased a new battery lets just hope this one does not explode in the mean time
Ive replaced the battery, the first charge took 8hour to 90% and now it wont charger over 50% is there a way to reset the battery limit ?
Sent from my Nexus 4 using Tapatalk
let it cycle a few times to correct the battery information.
That means let it die down completely, then charge it completely. Do that a few times and if it still causing issues its possibly a bad battery.
I think I also have a faulty charging port, only the wireless charging is working now, when I plug into any usb there is the lightning icon but it says not charging. I'll switch the daughter board with the one from my other broken nexus 4 to see if it fix the issue.
As much as I like my Nexus 4, I'm not impressed by reliability. In under 2 year, I've had 2 broken screen, 1 broken bake cover, 1 expanded battery and now possibly the charging port. My nexus S and Galaxy nexus with a million drop each are still working as new
One of my friends got one and broke his before the 2 month mark. He was ribbing me about getting a case for it and making it more bulky. I was not the better man...

Battery/Charging Issues (Nexus 4)

I am having problems with my Nexus 4.
History, replaced screen after phone was knocked out of my hand, probably damaged battery while trying to remove it, but everything worked once it was back together.
Screen broke again, and while working on that, I noticed the battery had swollen so ordered a replacement of eBay.
All back together now, but.
1 Phone does not state "charging" when connected to AC or USB charging, although the battery icon has the lightning bolt in it and the %charge does not drop while messing with the phone.
2 Phone does charge using wireless, but slowly, and status swaps back and forth between charging and not charging and the % will move from e.g. 40% to 35% as it says charging or not charging.
3 USB works for connection to PC.
I charged the new battery overnight, wirelessly. It got to about 90%, so slow charging, but seems to work. Phone is usable, everything seems to work. I connected it to PC and was able to use Nexus Root Toolkit to backup, the reset the phone, no change in charging behavior.
Booting into safe mode made no difference either. So it seems it is not software/firmware/apps that are causing the problem?
I guess next step is to open it up again and remove and remake all connections and check contact posts? Should I order a third battery? Or a new motherboard?
I searched here, but could not find anyone with the same problem.
Any and all help appreciated. Thanks in advance, guys.
Opening and rechecking connections and coating with contact cleaner has made no difference.
Phone typically needs Volume Down and Power button pressed to get it to start, then Power Button to select start option, then seems to run okay.
Battery still not reaching 100% charged, generally 70-80% after a full night off, using wireless (my Nexus 5 charges happily on same charger).
Ordered a cheap battery from China, not really expecting that to be the problem, but no other clues or suggestions for now.
Any update?
My battery is ****e now, lasts 3-4 hours and I need to turn off the phone and charge. It takes 4+ hours to charge when switched on. Charging via the PC you can forget it, it drains the battery if anything!
I'm thinking of buying the battery on eBay and doing my research on how to fix myself.
Phone not switching on and Battery issues
Hi,
I have been facing quick drainage of my Nexus 4 battery since past few months. Recently I had been keeping it on charge almost the whole day, and a full charge would last only 2-3 hours! Further, the charging was taking a lot of time too.
Today, my phone had already switched off due to low battery when I put it on charger. After the white charging icon appeared for a few seconds, the phone wasn't charging at all. I have tried 4 different chargers, but to no avail.
Can someone help me? Is there a guide on how to change the battery?
Any help and urgent help appreciated!
Zany!
Cooldood2012 said:
II guess next step is to open it up again and remove and remake all connections and check contact posts? Should I order a third battery? Or a new motherboard?
I searched here, but could not find anyone with the same problem.
Click to expand...
Click to collapse
It's possible some hardware was damaged when you took apart and put back together your phone. The USB board is a possibility, as is the back cover itself. These parts are pretty inexpensive, if you want to try buying a replacement, but that's just a shot in the dark.
uncle_buckman said:
Any update?
My battery is ****e now, lasts 3-4 hours and I need to turn off the phone and charge. It takes 4+ hours to charge when switched on. Charging via the PC you can forget it, it drains the battery if anything!
I'm thinking of buying the battery on eBay and doing my research on how to fix myself.
Click to expand...
Click to collapse
Buy a new battery. Li-ion batteries are only good for a few hundred cycles or so (~500 cycles is the expected lifetime), and the N4 isn't exactly the best in battery life, so you can reach the point where your battery turns to crap within a year or so (or less).
Go to ifixit.com and look at the teardown. All you need to replace the battery is a T5 TORX driver (for the screws at the bottom), something thin and plastic (like a guitar pick or a plastic knife - they do make professional tools for this) to pry the back cover off, a tiny phillips screwdriver (like for eyeglasses) for the battery screws, and something to pry the old battery off of the adhesive holding it in. Double sided cellophane tape works fine for keeping the new battery in. When prying the cover off, go slowly. A little at a time, don't rush or force things. Or you might flex too much and crack the back glass. Don't forget to take out the SIM tray first.
zanyguy said:
Hi,
I have been facing quick drainage of my Nexus 4 battery since past few months. Recently I had been keeping it on charge almost the whole day, and a full charge would last only 2-3 hours! Further, the charging was taking a lot of time too.
Today, my phone had already switched off due to low battery when I put it on charger. After the white charging icon appeared for a few seconds, the phone wasn't charging at all. I have tried 4 different chargers, but to no avail.
Can someone help me? Is there a guide on how to change the battery?
Click to expand...
Click to collapse
Time for a new battery. See above.
My battery have started to swollen up a bit but not alot (around 1mm or less, but it is noticeable when not in a case, it can wiggle a bit from side to side but not alot at all).
I have already ordered a new battery if it is expanding more, but yet battery life is pretty good in standby but not getting more then 3hours of SOT. but since im mostly using the N4 for email's and texting its not a problem for me to get through a full day.
I'm having the exact same issue but I've never taken the phone apart. In the 20 minutes its been off charger it's dropped 11% screen off in my pocket. It also gets hot and shuts off.
apocolypsecow said:
I'm having the exact same issue but I've never taken the phone apart. In the 20 minutes its been off charger it's dropped 11% screen off in my pocket. It also gets hot and shuts off.
Click to expand...
Click to collapse
That could be software/ROM related. It sounds like somethings keeping your phone going full blast instead of letting it idle.
Yup, trying going back to full stock (should always be first step if possible), and then you can go from there. If it doesn't happen, than it was a software issue, and if it still does than it is definitely a hardware issue. Best of luck.
Sent from my Nexus 4 using XDA Free mobile app
---------- Post added at 04:29 AM ---------- Previous post was at 04:27 AM ----------
With a swollen battery I strongly recommend you stop actively using the device. Swollen batteries can explode and that would not be good at all. I advise you to please not use the device anymore.
EDIT: Spelling
Sent from my Nexus 4 using XDA Free mobile app
Third battery (original, suspect replacement, now China sourced replacement) has been working well, phone back together and preforming as new for the last few months

Galaxy S7 Edge won't charge/boot/anything

Hello all,
this is a rather strange thing that recently happened: my dad's galaxy S7 edge which has been working completely flawless the last few years recently decided to just turn it self off. He handed it to me saying it was working fine last night and trying to use it next day absolutely nothing happens anymore.
I tried to charge via USB with Samsung charger, wireless charger from Anker in case the USB port is defective, and different key combos to restart etc. On PC nothing is detected either..
Could a faulty USB charger have killed the device? When plugging it in, there is absolutely no sign of life - you can hear a faint "buzzing" but no indicator lights etc..
Does anyone have any tips? It would be really appreciated!
Battery or port pcb failure. Maybe both.
Replace battery as it's long overdue.
Once an Li reaches 80% of its original capacity it's reached the end of its usable lifespan.
It's degraded at that point. Degraded Li's are more likely to fail. Any swelling is a failure; replace immediately if observed.
Replace battery and go from there...
Thanks @blackhawk for the tips and insight - I will try to replace the battery!
keebfox said:
Thanks @blackhawk for the tips and insight - I will try to replace the battery!
Click to expand...
Click to collapse
On a heavily used device the battery lifespan is typically 1-3 years.
I plan to replace my N10+ device's battery about every year, routine maintenance.
A failed Li can do a lot of damage. It rests on the display... which is somewhat fragile.
Get a new rear cover seal when replacing the battery so it retains its water resistance. On AMOLED (NOT LCD displays!!!) displays anhydrous isopropyl alcohol can be used to help loosen the double sides tape on the rear cover and battery if you do it yourself.
Controlled heat is used to help loosen the rear cover on most of these phones. Many shops will replace the battery for a low price as well.
Pretty amazing stuff right here. My S7 Edge did the exact same thing last night.
Think Samsung hit the kill switch.
I'm writing this message from my dad's s7 edge which has kinda the same problem but it's still usable. It shuts down suddenly (even with battery full 100%) and the only way to turn it on is plugging it to the charger, otherwise no sign of life.
keebfox said:
Hello all,
this is a rather strange thing that recently happened: my dad's galaxy S7 edge which has been working completely flawless the last few years recently decided to just turn it self off. He handed it to me saying it was working fine last night and trying to use it next day absolutely nothing happens anymore.
I tried to charge via USB with Samsung charger, wireless charger from Anker in case the USB port is defective, and different key combos to restart etc. On PC nothing is detected either..
Could a faulty USB charger have killed the device? When plugging it in, there is absolutely no sign of life - you can hear a faint "buzzing" but no indicator lights etc..
Does anyone have any tips? It would be really appreciated!
Click to expand...
Click to collapse
I believe, most of this case was caused by power IC, my s7 edge was suddenly died last night too. You can see on this thread and tutorial.
https://www.ifixit.com/Answers/View/650291/My+S7+won't+turn+on.+It+overheated,+and+now+it+does+not+respond.
FNDRSM said:
I believe, most of this case was caused by power IC, my s7 edge was suddenly died last night too. You can see on this thread and tutorial.
https://www.ifixit.com/Answers/View/650291/My+S7+won't+turn+on.+It+overheated,+and+now+it+does+not+respond.
Click to expand...
Click to collapse
Wow, thanks so much! This is definitely worth a shot
keebfox said:
Wow, thanks so much! This is definitely worth a shot
Click to expand...
Click to collapse
Yeah, i want to try this too, but i think it cost too much money, not worth for me. And also i dont trust to much for 3rd party repair on here except samsung service center.
But u can give it a try. Hope it works.

Categories

Resources