Redmi Note 4 Zero Voltage on Battery - Xiaomi Redmi Note 4 Questions & Answers

Following on from a Previous Problem which fixed yet created a newer problem I have:
Redmi Note 4 64gb running on Global Rom with a Battery showing Zero Volts on USB or AC Power. Plugging out instantly powers off.
Previous Thread
https://forum.xda-developers.com/re...bootloader-t3541762/post70656783#post70656783
Pressing *#*#3646633#*#* gets me this:
Battery Status: Charging (USB)
Battery Level: 0
Battery Scale: 100
Battery Health: Good
Battery Voltage: 0 mV
Battery Temperature: 37.0c
Battery Technology: Li-poly
Time since Boot: 31:00(not that it matters)
Interval of Info Record[1-100] 10 is in the changeable box
Battery Info Record: Start
I have no active warranty as an Aliexpress seller(3+ years a seller) vanished at Christmas. I've no issue taking it apart if I need to replace the battery. Watching a Youtube first dismantle video it appears I need a BN41. I'm going to go presume that my local multitude of phone shops won't stock that battery as I tried two and one asked "How do you spell that?" and another "a what phone?" so I won't be going down that route again.
Only reasonable price I could see online was some Eastern European country and using Google Translate I find these charge about €27 for the battery but it's not in stock anyway. Another is €48 in china. Seems a little expensive considering a Redmi 3 battery is about €7.
Anyway I'd prefer to see if it's software leading into a hardware problem as well before venturing down the route of battery replacement.
Any help would be greatly appreciated.

Brought phone into Repair Shop in my City and asked(phoned few days before hand and no problem changing battery) and it was fine until he says "Supplier doesn't have your battery" so I've to go off an buy a replacement. He says that if the phone will show the battery the connection between the motherboard and the battery is not corrupted as such. I'm also looking at "Chargebattery" in the Engineer Mode under Battery and I can see the following as well
ADC_Charger_Voltage :[4626 ]mv
Power_on_Voltage :[3400 ]mv
Power_off_Voltage :[3400 ]mv
Charger_Topoff_value :[4100 ]mv
FG_Battery_Current Consumption:
[XXX.XXXXXXXXXXXXXXX]ma ---------The X represents the consumption as it's going from about 230.0000 upwards to about 462.00000 and fluctuating.
I've had to order a Battery from Spain(exact spec battery BN41) and also bought a Micro Precision Toolkit and none of my tools are small enough to get those screws. I can see all the stripdown tutorials but alas none of them referred to the exact size of the screws so I ordered a Multi-tool. Hopefully it is just the battery otherwise it's the cost of the phone, battery, little multitool down the drain.
I did a very small driver to get one of the screws out(not exact fit) but the other wouldn't budge and I don't want to thread the head on the screw so backed off for now.

Same battery issue w/ Redmi Note 4
BertieBaron said:
Brought phone into Repair Shop in my City and asked(phoned few days before hand and no problem changing battery) and it was fine until he says "Supplier doesn't have your battery" so I've to go off an buy a replacement. He says that if the phone will show the battery the connection between the motherboard and the battery is not corrupted as such. I'm also looking at "Chargebattery" in the Engineer Mode under Battery and I can see the following as well
ADC_Charger_Voltage :[4626 ]mv
Power_on_Voltage :[3400 ]mv
Power_off_Voltage :[3400 ]mv
Charger_Topoff_value :[4100 ]mv
FG_Battery_Current Consumption:
[XXX.XXXXXXXXXXXXXXX]ma ---------The X represents the consumption as it's going from about 230.0000 upwards to about 462.00000 and fluctuating.
I've had to order a Battery from Spain(exact spec battery BN41) and also bought a Micro Precision Toolkit and none of my tools are small enough to get those screws. I can see all the stripdown tutorials but alas none of them referred to the exact size of the screws so I ordered a Multi-tool. Hopefully it is just the battery otherwise it's the cost of the phone, battery, little multitool down the drain.
I did a very small driver to get one of the screws out(not exact fit) but the other wouldn't budge and I don't want to thread the head on the screw so backed off for now.
Click to expand...
Click to collapse
Hey BertieBaron, I'm having the same issue with my Redmi Note 4, I've bought a new battery from Iberaccess, opened the device and installed the new battery piece but it didn't solve the problem, still switching off as soon as I unplug it... it's driving me nuts!
Have you found a solution in the meantime? I'd be very glad to hear from you mate.
Cheers

Nope. Binned it. One Plus3T arrives by DHL in a few hours.
Emailed Xiaomi offering to pay for repair. They said No.

BertieBaron said:
Nope. Binned it. One Plus3T arrives by DHL in a few hours.
Emailed Xiaomi offering to pay for repair. They said No.
Click to expand...
Click to collapse
Gotcha. May I know whether the charging problem emerged after a fall, water damage or out of the blue?

L_Merk said:
Gotcha. May I know whether the charging problem emerged after a fall, water damage or out of the blue?
Click to expand...
Click to collapse
Confirmed to be no Water Damage by somebody with more experience than I. Was it dropped? It was a teenager so anything is possible but there was no evidence of such.

Yes guys i had the same problem now, stuck at zero Percent there's a RED light indicatingit's charging but still ZERO won t go up ...and once i unplug the phone from charger it turns off Instantly ....I foudn the Solution for that it s quite easy as u think .. all you have to do is :
1-unscrew the 2 screws bottom
2-becareful while taking off the cover u need to take off the Sim tray
3-and slowly take off the over there s the finger print sensor cable unplug it
4-once the cover is off u see 2 cable next to each other one of them is for the battery ...Doesn t matter remove them both and hold power button for 20 seconds
5- make sure u do keep holding the power button for 20 seconds .....do that like3 or 4 times to make sure no power is left inside the phone ..
6-plug everything except the sensor and power on the phone and check this worked for me
Once u see it worked turn the phone off and put back the sensor and get everything back to together .....Don t plug the sensor while it s turned on i have no idea if this damages anything!!

Hi everyone, I meddle in the discussion, I have this problem. I have a Redmi Note 4 Global, a few days ago it turned itself off. I tried to turn it on again and it worked, then obviously the battery ran out. Tried to charge it, the screen turned on with the "mi" logo, red led at the top but it gave me completely empty battery with no percentage. I thought it was the dead battery. I changed it to a new one and put it in charge. Now I see Mi logo and 47%, it does not charge the battery unfortunately. Stopped at 47% for hours. The battery therefore does not charge. Even if I connect the phone to the PC, the charge does not start and the PC does not recognize it. What could be the problem?
Thank you

gianvi97 said:
Hi everyone, I meddle in the discussion, I have this problem. I have a Redmi Note 4 Global, a few days ago it turned itself off. I tried to turn it on again and it worked, then obviously the battery ran out. Tried to charge it, the screen turned on with the "mi" logo, red led at the top but it gave me completely empty battery with no percentage. I thought it was the dead battery. I changed it to a new one and put it in charge. Now I see Mi logo and 47%, it does not charge the battery unfortunately. Stopped at 47% for hours. The battery therefore does not charge. Even if I connect the phone to the PC, the charge does not start and the PC does not recognize it. What could be the problem?
Thank you
Click to expand...
Click to collapse
it is usually problem from usb charging module

joe170 said:
it is usually problem from usb charging module
Click to expand...
Click to collapse
Thanks man. I changed the usb charging circuit and finally it looks like the battery is charging again. But there is a problem: the charging is very slow. Why?

gianvi97 said:
Thanks man. I changed the usb charging circuit and finally it looks like the battery is charging again. But there is a problem: the charging is very slow. Why?
Click to expand...
Click to collapse
mabye the module is not original bro
solution : u can try using fast charger or change ROM that support fast charging

joe170 said:
mabye the module is not original bro
solution : u can try using fast charger or change ROM that support fast charging
Click to expand...
Click to collapse
The seller assured me that the circuit is good. In the reviews people didn't complain about the fast charging problem.
I am using the original charger and before changing the charging port, it charged normal and fast.
In what sense to change ROM?

Related

[Q] How to fix battery over voltage?

My battery's been on the fritz for the last days now. Whenever I turn my GS2 off, it will shows tha battery charging screen, then flash to another icon that shows a battery, exclamation mark in a yellow triangle, and a thermometer. It had to plug the charger in to get it to turn on, even though battery was at 100%.
So, I decided to download Battery Doctor to check my batter stats, and it says 'Health: Over Voltage'.
Does anyone know how to fix this? Help would be much appreciated.
I have exactly the same problem. I have not found a sollution, am thinking of calling samsung and explaining the situation. I will post here if i have a sollution.
What OS version are you running?
What Kernel version are you running?
What carrier (if any) did you purchase the phone through?
I'm on 2.3.3 (KE7), using Chainfire's kernel. Phone is carrier unlocked, unbranded from clove.co.uk.
Btw, I think I may have fixed it. I discharged the battery and used a charger with a lower voltage output to get it fully charged. (Charger I used if from my spare phone, a Samsung Champ). It now says that my battery health is good.
Now, the problem is that my phone won't stay powered off when I turn it off. It will stay off for 1-2 secs and power back on. Even if I remove the battery, the phone will power on after i place the battery back without me touching the power button.
Sent from my GT-I9100 using XDA App
aridoasis said:
I'm on 2.3.3 (KE7), using Chainfire's kernel. Phone is carrier unlocked, unbranded from clove.co.uk.
Btw, I think I may have fixed it. I discharged the battery and used a charger with a lower voltage output to get it fully charged. (Charger I used if from my spare phone, a Samsung Champ). It now says that my battery health is good.
Now, the problem is that my phone won't stay powered off when I turn it off. It will stay off for 1-2 secs and power back on. Even if I remove the battery, the phone will power on after i place the battery back without me touching the power button.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I have the exact problem. Is the battery health still good? I would like to fix this by myself and not send it in and be without my GS2 for that time.
You should try this:
1. be sure, that your battery is full (charging over night)
1. run the app battery calibrator
2. unplug charger
3. drain battery all the way down till it shuts off
In this way your phone can remember what is 100 % and what is 0%
My sgs2 shows 4,194 V at 100 %
I think your stats (look into battery calibrator) said that 100% are for example 3,8 V
PS: You need root permissions
---------- Post added at 04:55 PM ---------- Previous post was at 04:49 PM ----------
Please post us your current voltage.
I have this exact problem. Battery Calibration is pointless, we all know that.
Did anyone ever find out if this is fixable, or do I have to contact Samsung for a replacement?
It's quite annoying that I can't turn off my phone, it just powers on after about 2 seconds. In addition, I never know how much juice I have left in the battery as the reported capacity can jump from 90% down to 6% in an instant. After a reboot it might go up to 12% but I can still use the phone for hours without it shutting down...
Yeah
I've been having the same problems as all above...
Galaxy S2 on Sensation rom, but its not the rom, i flashed to another and the problem still remains...
It all started with phantom charging...(charging when the charger is not even plugged in and constantly making the "charger connected" sound)
I got the phantom charging fixed by cleaning the charger port with a cotton bud and some cleaning alcohol...But now i have overvoltage...
And just like the others, it'll stay on for example 100% and if you reboot its suddenly on under 10% and slowly works its way up to 20 or 30% without even being charged.
I'm assuming the battery got messed up during phantom charging, in tthis case calibration doesnt help, nor does flashing another rom. Flashing another rom leaves the phone stuck in MTP mode therefore unable to use it as a flash drive.
A vid on youtube reccomends replacing the part of the circuit board to which the charger port is attached and as well as the battery at the same time as the battery always gets messed up with the overvoltage issue....
When i have overvoltage i cannot charge even when its under 10%, unless i leave the charger in and reboot the phone it will then charge once it comes back on and it even says GOOD HEALTH until i unplug the charger.
I'd really like a definite solution to the overvoltage issue...
Bump!
Did anyone find an answer to this problem? Mine has started exhibiting the same behaviour. I haven't been able to search out any solutions...
Cheers, PF.
EDIT: Whoops! Just realised I'd better change that signature to SGS2-able. lol
I am also seeing the same issue for the past 3-4 days, I have switched off the phone and took out the battery, planning to visit samsung support center.
I hard rebooted the phone(which reset it to factory) that did'nt help.
will update once I get more info/help from Samsung support.
Vikas
i had the same problem as you guys and i fixed it by cleaning the contacts on the phone where you connect the charger. use some cotton buds and a needle and some alcohol and clean all the contacts at the bottom of the phone (usb cable slot).
make sure phone is turned off tho whilst doing it. that fixed my over voltage issue.
Hi Guys,
I went to Samsung Mobile Support Center today, they told me that USB mini port has turned slightly green, which means that it has in contact with Water
this will not be covered under warranty and might need to be replaced with charges
Tomorrow they will tell me the exact cost.
I still believe, its not an issue of Power port but with the battery port.
will update if I am able to get it solved.
It's a problem with your usb charging port. The only way to truly fix it is to have the charging port plus circuit board replaced. Happened to me a week back and I tried virtually everything- stock roms, removed root, replaced batteries etc. None of that worked. Some posts said it was a port problem. Went to a tech guy I knew and he confirmed the issue when he disconnected the port. It was relatively cheap for me to fix but some people have climed that samsung charges a large amount to fix it. You're better off trying to get it fixed on your own. If you're on warranty, try and claim it.
Also alot of people are having this issue- yours is about the 5th topic I've seen about this problem this week
Hi Guys,
My problem is solved. Samsung support replaced charging port and the chip it was in(total cost 650/- INR, about 13$)
now phone is working as before.
i have the same problem on my gs2, so can i fixed this problem by cleaning the mini usb port?
andyyody said:
i have the same problem on my gs2, so can i fixed this problem by cleaning the mini usb port?
Click to expand...
Click to collapse
Cleaning the usb port will/might help with phantom charging , but not overvoltage.....
For Overvoltage you may need to replace the whole USB port part of the circuit board (easily obtainable on EBAY) and you have to replace the battery at the same time as well cause the battery (also easily obtainable off ebay) gets damaged with the overvoltage problem.
I have ordered both about a week ago, awaiting 3 weeks for it to arrive to my country.
Good luck with that...
Theres videos on youtube of how to do the repair for overvoltage yourself...
Will report back here if circuit replacement worked for me...
RiD123 said:
Cleaning the usb port will/might help with phantom charging , but not overvoltage.....
For Overvoltage you may need to replace the whole USB port part of the circuit board (easily obtainable on EBAY) and you have to replace the battery at the same time as well cause the battery (also easily obtainable off ebay) gets damaged with the overvoltage problem.
I have ordered both about a week ago, awaiting 3 weeks for it to arrive to my country.
Good luck with that...
Theres videos on youtube of how to do the repair for overvoltage yourself...
Will report back here if circuit replacement worked for me...
Click to expand...
Click to collapse
thank you for you explain,i want to know is it difficult to replace the circuit board by myself?
hey guys, my gs2 also have the same problem, i fixed the problem after i cleaned the usb mini port, it will not show charging whatever i haven't plugged the charger and the problem of over voltage also fixed it YEAH!!!
sorry for my poor english
andyyody said:
thank you for you explain,i want to know is it difficult to replace the circuit board by myself?
Click to expand...
Click to collapse
When you open your s2 for the first time it is tough, but after that it is very easy...
I have already opened mine before to replace the loudspeaker, so it is now easy for me.
Heres the video of how to open your s2:
youtube.com/watch?v=evDCM84xQCA
Heres the video of how to replace the charger port circuit:
youtube.com/watch?v=aChzv3IzxsU
(or do a YOUTUBE search for "Galaxy S2 USB Flex Cable Replacement ")
This video also has comments that explain the cause of this problem...!!!!!!!!!!
That is the part you need to replace, the USB FLEX CABLE...(its the ribbon cable and the board, but they call it a flex cable)
Hope they help you.
RiD123 said:
When you open your s2 for the first time it is tough, but after that it is very easy...
I have already opened mine before to replace the loudspeaker, so it is now easy for me.
Heres the video of how to open your s2:
youtube.com/watch?v=evDCM84xQCA
Heres the video of how to replace the charger port circuit:
youtube.com/watch?v=aChzv3IzxsU
(or do a YOUTUBE search for "Galaxy S2 USB Flex Cable Replacement ")
This video also has comments that explain the cause of this problem...!!!!!!!!!!
That is the part you need to replace, the USB FLEX CABLE...(its the ribbon cable and the board, but they call it a flex cable)
Hope they help you.
Click to expand...
Click to collapse
Thanks, but the problem is solved by cleaning th usb min port, i no need to replace the flex cable anymore,.

Battery Spoilt Or Device Damaged?

Hello I have no idea what is going on, the battery icon on the status bar just keep blinking NON STOP! I have done full wipe and install different roms a dozen times!. but that didn't stop the battery from blinking, I tried to pull out the battery and place it back, it stopped blinking for a few minutes then it start off blinking again.
Anyone have any idea if my device is damaged or it's due to a faulty battery? and what does blinking battery at the status bar indicates? does it mean faulty? why is it blinking?! god
What does the icon look like?
What shows when you power off and then connect the AC charger?
Might just be a bad battery, you can try going to a phone shop and ask them if they have a spare battery to try in your phone, sometimes they do and sometimes they are nice enough to let you try.
HellcatDroid said:
What does the icon look like?
What shows when you power off and then connect the AC charger?
Might just be a bad battery, you can try going to a phone shop and ask them if they have a spare battery to try in your phone, sometimes they do and sometimes they are nice enough to let you try.
Click to expand...
Click to collapse
its a normal battery icon, but it's blinking, what does it mean?
suta said:
its a normal battery icon, but it's blinking, what does it mean?
Click to expand...
Click to collapse
It means you are probably suffering the usb-plug-brick.
Enter *#*#4636#*#* tap battery info, anything suspicious?
Clean your USB port briefly and with care! Try to slightly push the connector back to the center.
Was your phone wet in the last days?
If all this does not help.. Buy a new USB connector board and replace it. It costs around 12 bucks on Ebay.
Does the issue disappear after the battery had lost some juice? (below 80% charge)
Goods luck!
Tapatalked from my Samsung GT9100
Does it say battery disconnected? That's a problem with the actual battery.
Sent from my GT-I9100 using Tapatalk 2
Karpfenhai said:
It means you are probably suffering the usb-plug-brick.
Enter *#*#4636#*#* tap battery info, anything suspicious?
Clean your USB port briefly and with care! Try to slightly push the connector back to the center.
Was your phone wet in the last days?
If all this does not help.. Buy a new USB connector board and replace it. It costs around 12 bucks on Ebay.
Does the issue disappear after the battery had lost some juice? (below 80% charge)
Goods luck!
Tapatalked from my Samsung GT9100
Click to expand...
Click to collapse
I think you are right, i remember just a moment ago i kept hearing usb connected sound every 10 second. after that i do a full wipe. the sound went away, but my usb port respond very slowly, like after unplug my charger it still state there charging for about 10 second then stopped normally. but weird thing is, after taking out the battery and place it back.. the issue has been solved for awhile. do you think its any relate to the battery? or simply only the usb that is causing this issue?
does samsung warranty covers usb port?

Green charging screen of death?

Hi all,
My phone cut out at about 10% battery charge earlier and wouldn't turn back on. I thought it was probably just bad battery stats. But now I'm home, even after an hour on charge (and 30 mins on another charger) the phone won't turn on. It also shows up as an unrecognised device in device manager.
Whats weird is that when I first plug the charger in, rather than seeing the blue battery logo, I see an unfamiliar green battery logo as attached.
Has anyone got any ideas on how to fix this? (Tried booting with the volume up and volume down buttons held)
It's also come at quite a frustrating time, I may not be able to reply until Sunday night as I'm off camping in the sticks for the weekend.
Thanks
Plug your charger and Try to keep holding the power button for 1 min.....maybe start
fatalhh said:
Plug your charger and Try to keep holding the power button for 1 min.....maybe start
Click to expand...
Click to collapse
Sadly that didn't work.
The battery appears to now be taking a charge (300mA/h according to a USB multimeter), but I haven't been able to even get SP flash tools to recognise the handset sadly.
loadedscissors said:
Sadly that didn't work.
The battery appears to now be taking a charge (300mA/h according to a USB multimeter), but I haven't been able to even get SP flash tools to recognise the handset sadly.
Click to expand...
Click to collapse
Looks like battery dead....
fatalhh said:
Looks like battery dead....
Click to expand...
Click to collapse
That is the conclusion I'm coming to, sadly there doesn't seem to be a UK stockist of the battery yet, but I guess in the mean time I can see if the seller will honour any form of warranty on the product. For now, I'm back on my old G3 and it doesn't even begin to compare. I loved my Elephone.
Bad luck my friend.....I have a samsung galaxy 2 and one day run out of battery and never awake again....weird things
I think it should be cover with warranty.....Is one year in China
Type a email to Elephone support and they must be assist you because the phone is less than one year in the marketing.
I hope you will have a possitive news from Elephone
Thanks, I'll let you know how I get on.
I have the same problem a while ago with the green thing logo while charging , I even try it on wireless charger but it has the same thing with the green logo of battery ...but luckily it charge normally with blue logo
I have seen this on my screen a few times when I ****ed my bootloader during flashing. Device ended up being semi-bricked. I could not flash via SPtools because my device didn't get recognized. I was able to fix it luckily!
Hi all, sorry for the delay in responding.
So, the first problem was the battery. You need to charge it beyond 3.8v I think to get the phone to turn on, probably better to get it to 4v so you have enough charge stored to use the phone. The phone can't charge the battery below a certain threshold (around 3.7v) so you have to remove the battery and use a lithium-ion battery charger (any phone battery charger), these are available for about £2 on ebay.
In my phone the USB port had also stopped working for data transfer. I tried changing the board with the USB port on to no avail.
I replaced everything but the screen in the end to get it working.
Are/were you on stock OS or had you replaced it with another rom? Just for a bit more clarity of the problem.

New battery with 4500mah

Hi guys, I changed my elephone's P9000 battery for a new one with 4500mah, do you recommend making any kind of changes in the software in order to take more advantage of it? It is running with the Eragon V1.0 rom and I have also calibrated the battery with only an app.
Best regards
Where you bought the battery ?
vegdroid said:
Where you bought the battery ?
Click to expand...
Click to collapse
Ebay, Hsabat battery, it says there 4000mah but when you receive it it says 4500mah.
Hmm, interesting. I too would like to know the best way to insert a new battery software wise to get the best out of it. BTW, the battery is available on AliExpress for just $11.30 here: HSABAT 4000mAh Big Capacity Battery for Elephone P9000
IvanRod said:
Hi guys, I changed my elephone's P9000 battery for a new one with 4500mah, do you recommend making any kind of changes in the software in order to take more advantage of it? It is running with the Eragon V1.0 rom and I have also calibrated the battery with only an app.
Best regards
Click to expand...
Click to collapse
And fast charge?
pimandro said:
And fast charge?
Click to expand...
Click to collapse
Don't know yet because I think it is not correctly calibrated for now, in a few days I will let you know.
Well my battery finally arrived from AliExpress but it doesn't fit! The contact ribbon cable is set about 2 mm too far to the right compared to the original battery so it will not connect to the phones connector socket. So much for that idea and I think I've damaged the connector socket on the phone where I kept trying various ways to get the new battery to connect to the phone's socket. Now, upon putting the original battery back in, I have had to add a small piece of folded card to hold the connector cable down in the socket firmly when screwing on the cover plate!
Ah well, dispute filed on AliExpress.
techtalkonline said:
Well my battery finally arrived from AliExpress but it doesn't fit! The contact ribbon cable is set about 2 mm too far to the right compared to the original battery so it will not connect to the phones connector socket. So much for that idea and I think I've damaged the connector socket on the phone where I kept trying various ways to get the new battery to connect to the phone's socket. Now, upon putting the original battery back in, I have had to add a small piece of folded card to hold the connector cable down in the socket firmly when screwing on the cover plate!
Ah well, dispute filed on AliExpress.
Click to expand...
Click to collapse
I don't know what was necessary to make mine work because I payed a certified shop that repairs mobile phones to change mine, what I can tell you is that it doesn't fit 100% inside the phone because it is a tiny bit bigger, they had to glue my 2 side tape the phone's cover but it ended well, it is working fine. For now I haven't been able to correctly calibrated the battery, what happens is I wait until the phone turns off by going out of battery and when I connect the charger plug is says that has about 50% of battery left so I disconnect the plug and turn on the phone, about 50% more batery. I use the phone a lot during the day because of my business and it is lasting the hole day working a lot, about 18hrs a day...
Feedback after a few weeks with this battery in the Lineage 14.1 rom, the phone has not recognized yet the full capacity of this battery which means that i unplug it from the charger at about 6.30 in the morning, about 16h I have to turn it off because it only has 1 to 5% of battery, plug it to the charger only for a few seconds and it says that has about 57% more of battery available, unplug and turn it on and it reaches the end of the day. Opinions?
How is the battery going? Any improvement?
Fran Montero said:
How is the battery going? Any improvement?
Click to expand...
Click to collapse
Sorry for taking such a long time to answer you but I am no longer using this phone because I broke the touch screen and since I had spent a lot of money with it already I decided that I wouldn't spend any more so now it is just at home turned off with the broken screen.

Poco F1 is dead

Hi everyone, I got a poco f1 from a friend. He used it quite normally. The cellphone was off for about a month - it didn't work. After a month I tried to start it however unsuccessfully, poco f1 is dead, I tried to charge it but it can't. What could be a malfunction? Help if you know and thank you very much
First, try using a different charging cable and brick. If it doesn't charge, Check if it can be read using a computer or laptop. If it still doesn't work, then the issue may be the charging port. If that's the case, if you are still covered by warranty, then go to xiaomi store. If not covered, go to a proper technician.
Btw if the device can be read on a computer, then it may just be a boot issue. Just flash again.
Does the white charging led light up when it's on charge?
If not, have you tried leaving it on charge for an extended period?
I've had difficulties with phones in the past after batteries have fullly discharged - eg the Moto G5 had some battery protection "feature" that stopped it starting up if it thought the battery was fully discharged - it was a bit over sensitive so would sometimes assume the phone was fully discharged when it wasn't
Try leaving it on charge for 24 hours or so then holding down the power button for for at least 20 seconds with it still on charge
If you have no luck and the warranty is out, get to a repair shop (or disconnect and reconnect the battery if you're confident to open it up - for a while I was getting sporadic shutdowns with my F1, following which it wouldn't take any charge, the battery light staying off when plugged in. This was all fixed by tightening the screws securing the black motherboard plate, the cover which retains all the connectors - not sure why but it seemed something, I suspect the antenna connection, had come loose. Since doing this about 5 months ago I've had no further shutdowns and my phone is usable again, having been completely unreliable before)
One trick that worked on some old Nokia phones was to charge it plugged to a computer instead of plugged to a charger - but as said elsewhere, if the battery is completely dead, YMMV.
Also, try to press and hold the power button and while doing that, plug the phone to the charger and then release the power button.
0p3rat0r_gr said:
Hi everyone, I got a poco f1 from a friend. He used it quite normally. The cellphone was off for about a month - it didn't work. After a month I tried to start it however unsuccessfully, poco f1 is dead, I tried to charge it but it can't. What could be a malfunction? Help if you know and thank you very much
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Click to collapse
I guess your battery is dead
I have same issue, however I think my one is a motherboard charging IC issue. Does anyone know a way I can get it cheap from India, as I’m in the UK. India have it for around 9999 rupees which is about £10(+international shipping). I’ve ordered a charging port replacement from AliExpress to see if that solves the problem. However I don’t think that will work. No idea how my motherboard got damaged in the first place. I replaced a cracked screen myself and the phone was working fine for a few weeks, then it stopped charging all of a sudden. My PC also detects it/can access files doesn’t charge it. A new battery powered powered on the phone but again didn’t charge. Tried different adapters and cables too. Any experts out there know whether this is a motherboard issue or just a charging port issue?
If the phone is OFF for a month, then it is probable that the battery has gone down to a point that the BMS has shut it down. The BMS won't allow you to charge the battery because, in its own assessment, the battery is dead. Best way to test this case is to have another Pocophone with a good battery (or just a new battery altogether), detach the cable from that and test on yours. This may or may not work but this is one of the easiest to test and a new battery is easy to acquire.
ggezboye said:
If the phone is OFF for a month, then it is probable that the battery has gone down to a point that the BMS has shut it down. The BMS won't allow you to charge the battery because, in its own assessment, the battery is dead. Best way to test this case is to have another Pocophone with a good battery (or just a new battery altogether), detach the cable from that and test on yours. This may or may not work but this is one of the easiest to test and a new battery is easy to acquire.
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Click to collapse
Before you do that, just try leaving it in charge for 24hrs as suggested above, though it does look rather as if the OP has nicked off so won't be using any of these sage words!
0p3rat0r_gr said:
Hi everyone, I got a poco f1 from a friend. He used it quite normally. The cellphone was off for about a month - it didn't work. After a month I tried to start it however unsuccessfully, poco f1 is dead, I tried to charge it but it can't. What could be a malfunction? Help if you know and thank you very much
Click to expand...
Click to collapse
yep mine also. i was playing genshin impact and suddenly it freeze and off. service center said it was dead motherboards.

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