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So, got a phone from a friend, X10 - not rooted, which does not work at all.
Whenever I want to turn it on, LED just blinks 3 times, that's all I "got"
I have tried removing battery, SDCard and SIM Card but still no go!
Any idea or help would be much appreciated
try this
use the flash tool and reflash a 2.1 sony rom you can easily get your phone to dev mode even with out having to turn it on
http://forum.xda-developers.com/showthread.php?t=920746
you must get back on track after that!
Ok, will try it
Not working, Downloaded Flash Tool and 2.1 *.ftf image, when I press flash and select image, I press on back button and connect X10, but no go, Flash toll says: 9/044/2011 17:44:23 - INFO - Searching Xperia....
19/044/2011 17:44:23 - ERROR - Please plug you device in flash mode
And X10 only gives impulsing red LED light!
Try with SEUS, wich will install the flash drivers for X10 in your PC, I assume you're using Windows.
Or look for these drivers, can't give you the link right now, some research will help.
I installed PcCompanion before Flash Toll, will try with this software, but I am sure it will be same...will see soon!
bah....same
a few months back ago i remember someone solving this problem... try searching the forums
NVM. Found it, there you go http://forum.xda-developers.com/showthread.php?t=944322&highlight=red+led+death
Nice one, will try it later today!
Does not help, after I connect it to charger (with removed battery) there is green light, but after I add battery after one/two mins led turns off, and whatever I press Xperia does not respond!
I tried than removing it from charger and turning on, but same, no response, after I remove and add battery, if I try to turn it on Red LED of death is still here.....
...nosi u servis..nema druge ))
If u can mesure the battery voltage, and if is below 3V it seems the battery will not receive any more current and the phone need more power to bootup than charger can provide, or phone detect the low level and don't start. This is a theory. If it's above 3.7V the problem is from other part.
Sent from my X10i using XDA App
the ultima looks like k800i with full touch scree. i like it!!!
hey Benko, if ya dont want it, ill take it off your hands, ill even pay shipping!
had to ask
I tested my theory about battery level and seems to be right at first look. I put a DC power supply instead of the battery an if i put about 3.2 V and below then i connect the usb cable to PC the phone don't start only flash a red led and start pumping about 3.6V for charging the li--poly battery. so the problem seems to be the battery. The problem with li-poly battery is if them drop voltage below 3.4 V is very hard to charge them back.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Now what u have is to try to put about 4V on the phone terminals an to see if it starts.
go to ebay and buy a new battery
The evidence points to a bad battery. Head to your local wireless store and ask them for a compatible battery to test it out.
Charge the battery with a 5VDC power source, take one usb cable and cut it to get the wires, then use the computer or the original charger to force some juice into the battery.
//Niclas
Possible solution!!!
nan_a said:
I tested my theory about battery level and seems to be right at first look. I put a DC power supply instead of the battery an if i put about 3.2 V and below then i connect the usb cable to PC the phone don't start only flash a red led and start pumping about 3.6V for charging the li--poly battery. so the problem seems to be the battery. The problem with li-poly battery is if them drop voltage below 3.4 V is very hard to charge them back.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Now what u have is to try to put about 4V on the phone terminals an to see if it starts.
Click to expand...
Click to collapse
Well, i may be wrong, but as i have been able and still use batteries that already have completed 10 years i can tell that (not confirmed) this battery starts at 3.2v and is fully charged near 4v.
I just checked my battery is charged at 90% and measuring it i got 3,93v
The best way to know for sure if it is the battery or not is to get a source with at least 500ma to supply a recharge directly to your battery, if it starts getting hot above like 40ºc you should disconnect wait to cool and reconnect until gets near at least 3,9v.
To make sure the battery is charging try to measure the amount of current ma it is charging at.
If the battery is nearly dead or dead it will still charge but in speeds like less then 10ma above this it will be charging but will take a day maybe, but you must take care on this, the current will grow as the battery gets charged exponentially.
Once charged at near 3,9v input the battery without closing the back cover and check if it works.
Wait it to cool**** you need to wait really at least a bit so you can notice if it is getting hot again on next step.
Once the phone turns on, check if the battery is getting hot again even a bit.
The battery can't get to hot only by turning the phone on, if this happens your phone can have one of two problems:
Phone has a short, sorry, damm.
Phone has a software(rom) that is draining the power.
Using external power to connect to the phone while it is connect to usb or power source can break your phone, don't do that never.
Charging voltage must be at start near 4v to 4,5v, if it gets to charge to fast keep an eye on it to not get too hot, it can even blow if passes beyond 70ºc (i melt plastic once doing this, rsrs)
I hope this works, took me awhile to check the correct voltage for this, rsrsrsrs
Hi,
So as the title say, my battery act very weird.
At first, it refused to charge through the charger. Took out battery and waited 10 min, then it charge, until 100%, unplug charger, and it still charging , never stop.
Took out battery again, waited 10 min, put it in, battery charging icon appear on screen with the little yellow triangle inside, cannot turn on phone. Then I plug charger in, now I can turn on the phone, but battery level now show 80% and notification : charging paused, voltage too high.
Could someone help me?
Thanks
P/s: It was happened last night, leave it over night and I can use the phone normally this morning though.
Saisuay said:
Hi,
So as the title say, my battery act very weird.
At first, it refused to charge through the charger. Took out battery and waited 10 min, then it charge, until 100%, unplug charger, and it still charging , never stop.
Took out battery again, waited 10 min, put it in, battery charging icon appear on screen with the little yellow triangle inside, cannot turn on phone. Then I plug charger in, now I can turn on the phone, but battery level now show 80% and notification : charging paused, voltage too high.
Could someone help me?
Thanks
P/s: It was happened last night, leave it over night and I can use the phone normally this morning though.
Click to expand...
Click to collapse
Oh. Good. Lord.
10 min is NOT ENOUGH TIME to let the thing dry after you dropped the whole thing into water. You probably screwed the pooch on this one.
If the phone is dropped in water, most people recommend taking the phone apart and putting all pieces into a bag full of uncooked rice and silica packages for at least a few (preferably up to 5) DAYS before attempting to reconnect battery.
Because you've reattached battery already after less than 1 hour TWICE, I'm betting you have shorted your mainboard beyond all repair.
Water + electronics isn't necessarily the kill factor. Water + electronics + electrical current (connected battery) BEFORE DRY = dead electronics.
You should leave the battery out of the SGS and put both in a bag with much rice or cat litter some days in a bag. No hair dryer or something like this.
It wasn't a good idea to connect the loader and to leave the battery in the mobile.
I have a friend with exactly the same problem, his daughter put the GS2 phone into water and then he put the battery out for ONE night only... now the phone says is charging when it's unplugged and sometimes the "car mode" activates by his own (i don't even know how to activate the car mode on my GS2) ....
we started to think that the problem will stay forever
alexpardox said:
I have a friend with exactly the same problem, his daughter put the GS2 phone into water and then he put the battery out for ONE night only... now the phone says is charging when it's unplugged and sometimes the "car mode" activates by his own (i don't even know how to activate the car mode on my GS2) ....
we started to think that the problem will stay forever
Click to expand...
Click to collapse
And now that the battery was put back into the phone after only one night, it probably will.
mine too fell in luke warm water but i removed batt in all covers open ,kept in a rice bag for jus 2,3hrs an the i blowd hair dryer the kool one not hot air.....an now my phone is good .....atleast now don charge an remove ,keep it to dry an check out if ur lucky ,it will work or ,the service center m8.
rocky23 said:
mine too fell in luke warm water but i removed batt in all covers open ,kept in a rice bag for jus 2,3hrs an the i blowd hair dryer the kool one not hot air.....an now my phone is good .....atleast now don charge an remove ,keep it to dry an check out if ur lucky ,it will work or ,the service center m8.
Click to expand...
Click to collapse
You got lucky if yours isn't showing any ill effects after such a short dry time. Yours is an exception.
ometimes the "car mode" activates by his own (i don't even know how to activate the car mode on my GS2) ....
Click to expand...
Click to collapse
Well, i did have the same selfactivates problem like you for few min,It even turn it on after i put the battery in, without any action. But it gone now. The problem is that it keep saying charging and the notification keep pop up. I can overcome it by install AOKP or CM9 Rom which dont have that kind of notification. But still, my concern is how long can it take till it really dead?...
You got lucky if yours isn't showing any ill effects after such a short dry time. Yours is an exception.
Click to expand...
Click to collapse
we started to think that the problem will stay forever And now that the battery was put back into the phone after only one night, it probably will.
Click to expand...
Click to collapse
Start looking for a new phone now.
If you already shorted it, it's not going to go away. Electronics don't just heal themselves over time.
A repair shop may be able to replace parts with shorted components, but if many have shorts, it may not be worth it to fix, and may end up being more expensive to fix than to replace.
You should have left the phone to dry atleast for a solid 24 hours in a rice bag!
I put my old Sony Ericsson in the washing machine once (was in a pair of shorts) lol.
Of course I don't expect it to work... but I opened it up and took out battery etc... left it out to dry in the sun for few minutes (making sure it doesn't get too hot), then put in a nice dry place with dehumidifier. After a couple of days it worked again.
Now that is just lucky and it probably wouldn't last for long... but luckily I was going to buy a new phone at the time anyways.
Moral of the story... phones, or any electronics, are not waterproof unless stated that they are. You have to be more careful people... or get something like Invisible Shield.
do you think that the problem will go away if I got a new battery ??
alexpardox said:
do you think that the problem will go away if I got a new battery ??
Click to expand...
Click to collapse
How can you be confused about this? The issue is a short on one of the electronic components in the phone. Probably the mainboard. Getting a new battery won't address that.
Why not bring it in to some service center (or even some night market telephone tech guys) and have them check it out? Then they can tell you what needs replacing or if you're better off getting a new phone.
Hi There, Does anyone know if it's possible to use the Galaxy S2 without a battery, or trick it into thinking it does have one and just run off power?
My phone works, but kills a battery in about 30 minutes. There's one resistor in there that gets super hot after being water damaged, but only with a battery in.
Wouldn't know where to buy a new resistor, so wouldn't mind leaving it permanently docked and run my audio for the house through it if I can somehow run it without a battery
.
I think it can run without battery but can't boot without battery
Sent from my sgs2 running cm9 using xda app
Makrilli said:
I think it can run without battery but can't boot without battery
Click to expand...
Click to collapse
Just tried that on another S2 I have and it didn't work
Sorry to revive a old thread, but I would also like to know if there is a way to trick the phone into booting from a power supply instead of a battery. I am attempting to hardwire an old S2 into an imbedded in car media player blah blah blah.....long story short I have issues using the battery.
If I leave the phone plugged into a constant powered USB when the car is off and the phone is sitting dormant it over charges, the battery gets super hot, I get the overcharge/overheat warning etc. If I disconnect it, then I have two issues, first it loses charge as it is in use and pulling it when I park means having to bring it inside and top it off etc. The second problem is....it kind of defeats the purpose of an "embedded system".
I have the software set up perfectly and I love the way it all works. My only current hitch is the battery issue. If I can bypass it I know I can run a off delay relay, so that when the car is shut off the USB cord stays "hot" for say 1 hour then shuts off thus removing power. This option seems tedious and the parts more expensive then a simple power supply replacement. Unfortunately I do not know the software side.
I have been able to get the phone to boot without a battery, however as soon as it is done booting I get the "battery low, plug in" warning, then a few seconds later the phone shuts off........Is there a way to keep the phone from shutting down at that point, or get it to ignore the fact the "battery" is at 0%?
Edit: When I say I can get it to boot without a battery, I am wiring a power supply directly to the two pins that the battery + and - would be touching.
techoverload said:
Sorry to revive a old thread, but I would also like to know if there is a way to trick the phone into booting from a power supply instead of a battery. I am attempting to hardwire an old S2 into an imbedded in car media player blah blah blah.....long story short I have issues using the battery.
If I leave the phone plugged into a constant powered USB when the car is off and the phone is sitting dormant it over charges, the battery gets super hot, I get the overcharge/overheat warning etc. If I disconnect it, then I have two issues, first it loses charge as it is in use and pulling it when I park means having to bring it inside and top it off etc. The second problem is....it kind of defeats the purpose of an "embedded system".
I have the software set up perfectly and I love the way it all works. My only current hitch is the battery issue. If I can bypass it I know I can run a off delay relay, so that when the car is shut off the USB cord stays "hot" for say 1 hour then shuts off thus removing power. This option seems tedious and the parts more expensive then a simple power supply replacement. Unfortunately I do not know the software side.
I have been able to get the phone to boot without a battery, however as soon as it is done booting I get the "battery low, plug in" warning, then a few seconds later the phone shuts off........Is there a way to keep the phone from shutting down at that point, or get it to ignore the fact the "battery" is at 0%?
Edit: When I say I can get it to boot without a battery, I am wiring a power supply directly to the two pins that the battery + and - would be touching.
Click to expand...
Click to collapse
bump
any solutions to this yet?
the phone has a circuit that controls power and charge level by communicating with the battery so it will always know that the battery is removed because the battery feedback circuit will not be present.
Sorry for reviving an old thread, but i have a solution that may help others out.
I have found a way to power the Galaxy S2 GT-I9100T from an external power supply ( i have also tested on S3 GT-I9300 and S5 SM-G900I).
My first step was to create a dummy battery out of perspex, you could use any non conductive material.
Make sure you include the alignment notches and keep it as close to the size of the original battery so it is a snug fit and wont accidentally fall out.
When you know the perspex fits you can start fitting the contact terminals, make sure you have the polarity correct and that they line up with the contact terminals of the original battery and the spring terminals in the phone.
Once you have the terminals fitted you can then look at powering up your phone, i used a LM2596 based DC-DC converter that i had laying around.
If you are using a variable DC-DC converter like i did make sure you adjust the output of the power supply BEFORE connecting to your phone to prevent you destroying your device.
My DC-DC converter is set at 3.88 Volts, this value seems to trick the phone into thinking it has a battery with greater than 40% charge that way you don't get the annoying low battery alerts.
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How about taking your admittedly innovative idea one stage further.......
If you have an old battery laying around, why not (very carefully) remove the top part of it for use with your perspex replacement....this top section contains the overcharge protection circuit which would help to provide added protection to the device....it also has the benefits of the facts that the battery connection points are already in place and correctly aligned (it also has those alignment notches at either end).....imo, an improvement on an already good idea....
I got problem with my SGS 2 - after long on-shelf time battery drained to absoltely zero. My voltometer showed 0 on every connector. I was unable to charge or boot my phone (24h+ on charger, no signs of life). Dead, bricked, gone... Battery was relatively new (some months) so I didn't want to buy another one. Then I read Spud2233's post... and tried it .Well, kind of variation. I connected charger to phone's USB port and additional power (Motorola's dual port charger) to internal batterys connector (simly stripped old USB cable). Then battery was inserted and.... voila! After 2 or 3 retries my phone booted in and started to charge. I disconected additional power cable, phone is loading as usual. Battery revived!
Thanks for inspiration, Spud2233!
szydas said:
I got problem with my SGS 2 - after long on-shelf time battery drained to absoltely zero. My voltometer showed 0 on every connector. I was unable to charge or boot my phone (24h+ on charger, no signs of life). Dead, bricked, gone... Battery was relatively new (some months) so I didn't want to buy another one. Then I read Spud2233's post... and tried it .Well, kind of variation. I connected charger to phone's USB port and additional power (Motorola's dual port charger) to internal batterys connector (simly stripped old USB cable). Then battery was inserted and.... voila! After 2 or 3 retries my phone booted in and started to charge. I disconected additional power cable, phone is loading as usual. Battery revived!
Thanks for inspiration, Spud2233!
Click to expand...
Click to collapse
Just registered to say thanks for this tip!
I too have had SII batteries go dead after too long, and the SII seems to be unable to power up without a voltage across the battery terminals.
I used a small variable power supply set to about 3.5 V. I trimmed some thin hookup wire until only a few strands were left and 'pinched' them between the battery terminals and the phone battery contacts. Then with a charger plugged in to the phone I was able to 'trick' the phone into turning on. Once booted the battery charged fine.
Note I think this should be done quickly as the phone and power supply will fight each other for as long as the voltage is placed on the contact, so I pulled the PS wires out (keeping the battery in) as soon as the phone was booted up.
szydas said:
I got problem with my SGS 2 - after long on-shelf time battery drained to absoltely zero. My voltometer showed 0 on every connector. I was unable to charge or boot my phone (24h+ on charger, no signs of life). Dead, bricked, gone... Battery was relatively new (some months) so I didn't want to buy another one. Then I read Spud2233's post... and tried it .Well, kind of variation. I connected charger to phone's USB port and additional power (Motorola's dual port charger) to internal batterys connector (simly stripped old USB cable). Then battery was inserted and.... voila! After 2 or 3 retries my phone booted in and started to charge. I disconected additional power cable, phone is loading as usual. Battery revived!
Thanks for inspiration, Spud2233!
Click to expand...
Click to collapse
Thank you so much for the solution to my problem! I have purchased TWO batteries already and they both stopped working after drained to zero. I was blaming a charger or a quality of the battery. I found other posts suggesting to remove a capacitor but it wasn't broken...
Thanks to you, I have just booted my phone, pulled out extra power after couple minutes and it charging on its own now! (well 5% as I speak).
fpN3eqU said:
Just registered to say thanks for this tip!
I too have had SII batteries go dead after too long, and the SII seems to be unable to power up without a voltage across the battery terminals.
I used a small variable power supply set to about 3.5 V. I trimmed some thin hookup wire until only a few strands were left and 'pinched' them between the battery terminals and the phone battery contacts. Then with a charger plugged in to the phone I was able to 'trick' the phone into turning on. Once booted the battery charged fine.
Note I think this should be done quickly as the phone and power supply will fight each other for as long as the voltage is placed on the contact, so I pulled the PS wires out (keeping the battery in) as soon as the phone was booted up.
Click to expand...
Click to collapse
szydas said:
I got problem with my SGS 2 - after long on-shelf time battery drained to absoltely zero. My voltometer showed 0 on every connector. I was unable to charge or boot my phone (24h+ on charger, no signs of life). Dead, bricked, gone... Battery was relatively new (some months) so I didn't want to buy another one. Then I read Spud2233's post... and tried it .Well, kind of variation. I connected charger to phone's USB port and additional power (Motorola's dual port charger) to internal batterys connector (simly stripped old USB cable). Then battery was inserted and.... voila! After 2 or 3 retries my phone booted in and started to charge. I disconected additional power cable, phone is loading as usual. Battery revived!
Thanks for inspiration, Spud2233!
Click to expand...
Click to collapse
I am in the same situation with SII batteries go dead after too long.
I do not understand this part
''I connected charger to phone's USB port and additional power (Motorola's dual port charger) to internal batterys connector (simly stripped old USB cable). Then battery was inserted and.... voila!''
or this part
'' I trimmed some thin hookup wire until only a few strands were left and 'pinched' them between the battery terminals and the phone battery contacts. Then with a charger plugged in to the phone I was able to 'trick' the phone into turning on.''
how is this different than inserting the battery in the phone and then connecting the usb power supply?
blue whale said:
how is this different than inserting the battery in the phone and then connecting the usb power supply?
Click to expand...
Click to collapse
The phone won't charge the battery if it doesn't detect (sufficient) voltage. You can "jump start" the charging process by tricking it with a fixed voltage across the terminals.
so I take my dead battery, then
-take a usb charger+usb cable
-strip the usb cable to get two strands
-put one strand of the usb cable on the + of the battery
-put one strand of the usb cable on the - of the battery
=>the battery is charging
[or easier, I take battery like this,
put one strand of an electric cable on the +, connect this cable to the + of the phone battery, then put one strand of the electric cable on the - of the battery and the - of the phone battery
then I put the battey in the phone with usb power supply IN and the phone boots ???
I wouldn't use a USB cable, 5 V is probably too high.
blue whale said:
or easier, I take battery like this, put one strand of an electric cable on the +, connect this cable to the + of the phone battery, then put one strand of the electric cable on the - of the battery and the - of the phone battery then I put the battey in the phone with usb power supply IN and the phone boots ???
Click to expand...
Click to collapse
Yep, that's exactly what I did (except I used a 3.5 V power supply).
Once the phone has begun booting you should probably disconnect the "jump start" battery as quickly as possible or it'll fight the charging circuit.
fpN3eqU said:
I wouldn't use a USB cable, 5 V is probably too high.
Yep, that's exactly what I did (except I used a 3.5 V power supply).
Once the phone has begun booting you should probably disconnect the "jump start" battery as quickly as possible or it'll fight the charging circuit.
Click to expand...
Click to collapse
but you agree that connecting the phone battery the charged green battery is like charging the phone battery [at least a bit]?
then I would just use the phone battery normally, by inserting it into the phone and boot the phone and finish to charge the phone battery.
blue whale said:
but you agree that connecting the phone battery the charged green battery is like charging the phone battery [at least a bit]?
then I would just use the phone battery normally, by inserting it into the phone and boot the phone and finish to charge the phone battery.
Click to expand...
Click to collapse
Not really, the SII battery will still be dead after a few seconds "charging". Getting the voltage across the phone battery terminals tricks the phone that there's a charged battery present so it will boot and continue charging it. Otherwise it gets stuck in something like a boot loop looking for the battery (mine did anyway).
If you could charge it separately from the phone then obviously you'd just do that.
Thank you for all your tips. I tried similar stuff, but I guess the voltage was just not right.
So I asked around to get a spare battery, which which I powered on the phone. It worked like charm.
I change the battery while the phone was running and tada! my phone was loading the "out of order" battery just fine.
Pretty much the same trick you guys did, but with less soldering and more quick magic happening ^^
regsnerven said:
Thank you for all your tips. I tried similar stuff, but I guess the voltage was just not right.
So I asked around to get a spare battery, which which I powered on the phone. It worked like charm.
I change the battery while the phone was running and tada! my phone was loading the "out of order" battery just fine.
Pretty much the same trick you guys did, but with less soldering and more quick magic happening ^^
Click to expand...
Click to collapse
I did just that to my s2 and his dead battery.
I was scared to go with ONLY a 18650 battery to charge the dead battery (no phone or usb charger involved) : I did not know if I should connect pole+ of the 18650 with pole + of dead battery (and pole - of 18650 with pole - of dead battery) which is the parallel scheme or the opposite, to go with the ''series'' scheme
blue whale said:
I was scared to go with ONLY a 18650 battery to charge the dead battery (no phone or usb charger involved) : I did not know if I should connect pole+ of the 18650 with pole + of dead battery (and pole - of 18650 with pole - of dead battery) which is the parallel scheme or the opposite, to go with the ''series'' scheme
Click to expand...
Click to collapse
You were right to be scared. You should not do that. The dead battery might draw too much current. That could be dangerous. Read a bit about how charging of Li-Ion batteries works: first you charge with constant current (CC), which depends on the battery's design, once it reaches the correct voltage (4.2 V for a single cell), it should go into constant voltage mode, and then you have to know at what time or remaining current you shut the charger off. A good rule of thumb is to wait till the current drops to 10% of the charging current. E.g. if you were charging the battery with 1 A***, you should turn off the charger when it's down to 100 mA.
***1 A is just an example that would work for most modern phone batteries. However, this can be different! Ideally it's written on the battery.
Also, it's very well possible that in newer phones the battery will only output voltage if the charging circuit inside the phone allows it to. At least that's the case in notebooks for many years, and I don't see why it should be very different for phones.
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.
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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.
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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?
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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
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it is usually problem from usb charging module
joe170 said:
it is usually problem from usb charging module
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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?
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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
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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?
I recently picked up this galaxy s6 edge from a friend that upgraded to a new phone. It won't turn on, neither to android recovery, nor to download mode nor the android. I charged it via wireless charging overnight and i tried for around an hour with a usb cable. What do i do?
same issue i am facing, i tried original charger, wireless charger and fast chargers from many different brands. but all failed. The device only gets warm/hot while charging and nothing happens. neither download mode nor recovery mode works. I am kind pf stuck without any solution, my device was used very rarely and its like an brand new device. Doesn't know what to do, if you find any solution then please let me know too. thanks in advance
Same problem. If I press power button very long, blue light comes on. Then it's stuck and stays like this until battery is flat. Battery charging is not possible: device heats up (tried USB and Qi), but battery doesn't take any charge.
So I opened the S6 and checked the battery directly. I can charge it directly with a lab power supply and when I plug it in and press power button, the blue notification light comes on again until battery is empty again. I can also see that only ICs get hot, but not the battery when plugging in USB.
So, it's definitely some hardware fault. I suspect power IC that is not able to power up the screen. But I don't know. I will investigate further but it looks difficult. However, I have seen many YouTube videos with same symptoms, but problem was always different than mine :/
Hi guys,
This thread is 2 months old, any of you managed to fix the problem?
I am having very similar problem. My phone was on a shelf for about a year and a half. Before now it was working perfectly. Now I can't charge it via USB or power adapter. When trying to power it up or get into download or recovery mode, nothing happens. Computer does not see it. Tried different cables, USB ports, power adapters..nothing.
The only thing that is happening to the phone is the battery logo appears when trying to charge it, though the green bar does not go over battery, only the empty grey battery with lightning icon in the middle. Also the screen does not go dark after a few seconds as it should and the red/blue LED does not turn on.
Is this the signal from the phone, that the battery is to deeply dischareged and cannot be charged again? I am googling all over the web and can't find anybody talking about what phone does in case of to low voltage on battery.
PS back does not seem to be bloated, USB port was working perfectly last time used
Please try to help, you are my last stop before opening the phone and start probing the poop out of motherboard to see what gave.
EDIT: something interesting happened just about an hour after my post. The battery suddenly started showing % of charge and the green bar started running, computer recognized the phone.. as everything should be.
My FIX: leave the phone pluged in and charging for about 3days and it will start working again.
My semi professional explenation of fix and problem: the phone has a ''backup or reserve'' battery. It is actually main battery but the last I think I read somewhere it is 20% of capacity, is reserved for phone exclusively for the clock and all other electronics that need power when switched off. Now these 20% probably were discharged due to laying around for almost 2 years.
It took me 3 days of charging to fill up these ''20%'' I guess. Probably because Lithium batteries are charged VERY slow at very start and end. This is safty procedure for ALL Li batteries.
If any expert can confirm my conclusion please do so, to help other people.
To answer partialy to my question: The phone tells you battery is ''deep'' discharged when you only see the charge icon without the green bar.
In the mean time I was writing this edit I came up to 4% battery and turned it on!
BR Friend