did you drained your battery till its fully dead ?
now you need to charge it (boost) at a certain point for it to turn on
you need minimal of 3.6v on your battery to power on the phone.
you can see the voltage in your battery with a multimeter
i had this problem, I drained my battery completely, when I plug it in, the led flashing 11 times last 3 flashes are slow then goes dark.
(my battery had only 2,80v, and i had to boosted to 3.6v)
the original charger has an output 0f 3.6v, i was lucky to have a external batery charger, and it has 4.2v output, so was a little faster to boost my battery,
-methed one by lalitsehgal21
1. Take a spare usb cable.
2. cut it from between.
3. Peel two wires black and red from tip.
4. connect black to (-) point and red to (+) point on batt and secure it via tape.
5. plug it in any power source usb or charger.
6. lve for 20 mins have coffee.
7. remove it and put in fone.
8. Last shot as its almost discharged keep charger plugged in till it rches 50 then flash new recovery.
9. Buy me coke.....coz i dt like beer
-methed one by GiZZy (the led light will not turn on)
1. cut out a strip of plastic that covers only the middle 2 pins between the battery and the phone
2. plug phone in charger
3. place strip between battery and phone on the 2 middle pins
4. put battery in place (2 middle pins isolated)
5. wait to charge for about 10 minutes
6. remove everything, plug battery in and power on
-methed two by ikhzter (i didnt try this one)
1. Take out battery and put it back in
2. Charge for 20 minutes.
3. Take out battery and put it back in again
4. Try powering on now
YOU CAN ALWAYS CHECK THE PROGRESS WITH A MULTIMETER
DON'T FORGET ONLY PUT THE BATTERY ON YOUR PHONE IF YOU HAVE MORE THAN 3.6 V (check with a multimeter)
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vladnosferatu said:
did you drained your battery till its fully dead ?
now you need to charge it (boost) at a certain point for it to turn on
you need minimal of 3.6v on your battery to power on the phone.
you can see the voltage in your battery with a multimeter
i had this problem my baterry had only 2,80v, and i had to boosted to 3.6v
the original charger has an output have 3.6v, i was lucky to have a external batery charger, and it has 4,9v output, so was a little fast to boost my battery,
but this process can take hours.
-methed one by lalitsehgal21
1. Take a spare usb cable.
2. cut it from between.
3. Peel two wires black and red from tip.
4. connect black to (-) point and red to (+) point on batt and secure it via tape.
5. plug it in any power source usb or charger.
6. lve for 20 mins have coffee.
7. remove it and put in fone.
8. Last shot as its almost discharged keep charger plugged in till it rches 50 then flash new recovery.
9. Buy me coke.....coz i dt like beer
-methed two by ikhzter (i didnt try this one)
1. Take out battery and put it back in
2. Charge for 20 minutes.
3. Take out battery and put it back in again
4. Try powering on now
Click to expand...
Click to collapse
I don't really understand in what situation one would need this. When I drain my battery until its fully dead, then yes, it won't turn on while it's plugged in, but if I just charge for 30 seconds to a minute and then unplug the charger, the phone will turn on fine... Then I can continue charging normally after the phone boots up.
Does that not work for you?
gbzbar said:
I don't really understand in what situation one would need this. When I drain my battery until its fully dead, then yes, it won't turn on while it's plugged in, but if I just charge for 30 seconds to a minute and then unplug the charger, the phone will turn on fine... Then I can continue charging normally after the phone boots up.
Does that not work for you?
Click to expand...
Click to collapse
no because i have the CWM recovery, and dont charge the battery when the phone is off
Then you need to update your recovery. Download Rom manager and then install clockwork recovery through Rom manager.
sevag00 said:
Then you need to update your recovery. Download Rom manager and then install clockwork recovery through Rom manager.
Click to expand...
Click to collapse
i have the last....
4.0.1.5
Different method
Hello,
I was in your situation and was able to use the battery from both my nexus and my myTouch to boot in to the bootloader and flash the stock recovery. I had to hold the batteries in place as they are not the right size (just line up the contact points). After flashing the stock recovery I was able to put my sensation battery back in, let it charge for a few minuets and then it would power on. Hope this helps. I have attached the stock recovery from the TMOUS 1.29 rom that I used.
Rsotbiemrptson
vladnosferatu said:
i have the last....
4.0.1.5
Click to expand...
Click to collapse
Rsotbiemrptson said:
Hello,
I was in your situation and was able to use the battery from both my nexus and my myTouch to boot in to the bootloader and flash the stock recovery. I had to hold the batteries in place as they are not the right size (just line up the contact points). After flashing the stock recovery I was able to put my sensation battery back in, let it charge for a few minuets and then it would power on. Hope this helps. I have attached the stock recovery from the TMOUS 1.29 rom that I used.
Rsotbiemrptson
Click to expand...
Click to collapse
It's not about the version number.
If your recovery is blue, then you don't have the latest.
Download Rom Manager from the market and inside of the program, use the Flash Recovery function.
The new recovery will be orange. This recovery is released directly from Koush, who makes the recoveries, instead of from Alpharevx. Also, it will allow you to use the very useful features of Rom Manager, whereas with the blue recovery, you can't do anything with Rom Manager.
It will fix the charging issue, and it a lot more convenient than ripping apart a charger and jump-starting your phone battery, or than flashing the stock recovery just to be able to charge your battery.
Edit:
When you charge your battery from a dead state, the led will blink non-stop. That's good. Let it do that for 30 seconds to a minute, then UNPLUG your charger and turn your phone on. It should turn on.
Then when it boots up, charge normally.
gbzbar said:
It's not about the version number.
If your recovery is blue, then you don't have the latest.
Download Rom Manager from the market and inside of the program, use the Flash Recovery function.
The new recovery will be orange. This recovery is released directly from Koush, who makes the recoveries, instead of from Alpharevx. Also, it will allow you to use the very useful features of Rom Manager, whereas with the blue recovery, you can't do anything with Rom Manager.
It will fix the charging issue, and it a lot more convenient than ripping apart a charger and jump-starting your phone battery, or than flashing the stock recovery just to be able to charge your battery.
Click to expand...
Click to collapse
4.0.1.5 is the orange version, i updated from ROM MANAGER
and i had this problem with the cwm orage version, the last version
vladnosferatu said:
4.0.1.5 is the orange version, i updated from ROM MANAGER
and i had this problem with the cwm orage version, the last version
Click to expand...
Click to collapse
See my edit to my post above. Does that fix your issue?
gbzbar said:
See my edit to my post above. Does that fix your issue?
Click to expand...
Click to collapse
the led flashing 11 times last 3 flashes are slow then goes dark.
vladnosferatu said:
the led flashing 11 times last 3 flashes are slow then goes dark.
Click to expand...
Click to collapse
But have you tried letting it flash for a bit, unplugging the phone, and then try turning it on?
gbzbar said:
Edit:
When you charge your battery from a dead state, the led will blink non-stop. That's good. Let it do that for 30 seconds to a minute, then UNPLUG your charger and turn your phone on. It should turn on.
Then when it boots up, charge normally.
Click to expand...
Click to collapse
i did that, and didnt work
I was worried about this for a while, too. What worked for me was to use a friend's phone (also a Sensation) to charge my battery, update the new ClockworkMod Recovery, then put my battery back in to my phone. Took about 10 seconds to power on, but by golly it works now.
EDIT: No, apparently it was the spare battery that worked fine. My original battery won't charge in either phone. Really don't have any spare cables to be hacking up. I guess I have no option other than to have another battery sent out.
I have the same problem, it is now completely dead.
I do have the latest ROM Manager through Market and flashed the latest CWM, yes the text is orange.
What to do :[
argh9 said:
I have the same problem, it is now completely dead.
I do have the latest ROM Manager through Market and flashed the latest CWM, yes the text is orange.
What to do :[
Click to expand...
Click to collapse
do what is in first post !!!!
So is the charging issue fixed or not. I thought the new recovery fixed that issue. It's the only thing keeping me from s-off and rooting my phone. I run the battery totally dead a few times a week.
Sent from my HTC Sensation 4G using XDA Premium App
jomaxwel said:
So is the charging issue fixed or not. I thought the new recovery fixed that issue. It's the only thing keeping me from s-off and rooting my phone. I run the battery totally dead a few times a week.
Sent from my HTC Sensation 4G using XDA Premium App
Click to expand...
Click to collapse
nope, not yet
Man this sucks. I'm having the hardest time getting this to work.
WOAH.... I would advise against this completely. You run the risk of destroying the battery this way.
If you really need to do it this way, using 3 AA batteries would be better. (for a voltage of 4.5).
Using 9 volts is grossly overvolting the battery, which is extremely bad for Li-ion / Li-Po batteries.
Also remember, you only need to charge it enough so that the phone can turn on and boot.
vladnosferatu said:
-you can use a 9v battery to charge your phone battery
1. connect with a wire the + from 9v battery to the + from you phone battery
2. connect with a wire the - from 9v battery to the - from you phone battery
Click to expand...
Click to collapse
solarnz said:
WOAH.... I would advise against this completely. You run the risk of destroying the battery this way.
If you really need to do it this way, using 3 AA batteries would be better. (for a voltage of 4.5).
Using 9 volts is grossly overvolting the battery, which is extremely bad for Li-ion / Li-Po batteries.
Also remember, you only need to charge it enough so that the phone can turn on and boot.
Click to expand...
Click to collapse
thanks, removed
Related
There have been about eleventeen thousand questions across multiple threads on how to calibrate the battery properly...figured it probably should be a sticky in here if possible.
You have to know how to get into Recovery mode. You can do this with Quickboot when the phone is on, or the powered off phone method:
1. Power off phone or pull battery and replace.
2. Hold all three of these buttons down: Vol-Down, Camera button (lower left as you look at the phone) and Power on button).
3. You will see a small graphical menu come up. Most of us are using Clockwork, so I will focus on that - it will be a green menu.
For the battery wipe, Go to Advanced, navigate the menu with the vol up/down keys, and select using the camera button.
There are three ways so far:
The Drain Way:
1. Drain it down until fully dead.
2. Charge normally to full.
3. Reboot to Clockwork recovery and wipe battery stats (under advanced, on second page), reboot phone.
4. Turn everything on, flashlight, Bluetooth, Wi-Fi, Pandora, the whole nine, to quickly drain it completely dead.
5. Charge normally to full.
The Powered Off Charge way:
1. Charge your phone 100% while it’s on
2. Unplug it from the charger, power off, then charge it up to 100% with it in a powered off state.
3. Unplug charger from phone. Power it on, and then charge it to 100% while the phone is on.
4. Unplug the charger and then reboot into Clockwork, go to advanced and clear the battery stats.
5. Power on, charge to full, and then enjoy.
Third option (thanks squshy 7), I paraphrased it and wrote it out a bit for ease.
Maybe we can call it the Mr. Miagi Charge way....aka Power On, Power Off, Charge On, Charge Off way lol
(the parentheses are the state of the phone)
1. Start with the phone powered on.
2. (Phone on) Charge battery until the LED turns blue
3. (Phone on) Unplug the phone from the charger, wait until the LED turns off
4. Power off the phone.
5. (Phone off) Plug the adapter into the phone, charge it up until the LED turns blue
6. (Phone off) Unplug, wait until the LED turns off
7. Power the phone on.
8. Wait until the phone is booted back up all the way, and then power it off again
9. (Phone off) Plug the adapter into the phone, charge it up until the LED turns blue.
10. Boot the phone into recovery mode
11. Go to Advanced, and then choose Wipe Battery Stats.
12. Power the phone on and use normally.
Still a noob, but what would exactly need you to have to Calibrate Battery? Also what exactly does it do for the user?
P.S I'm sure I could look this up but it would be nice to see it in your thread for others to see
turtlenator694 said:
Still a noob, but what would exactly need you to have to Calibrate Battery? Also what exactly does it do for the user?
P.S I'm sure I could look this up but it would be nice to see it in your thread for others to see
Click to expand...
Click to collapse
Well it's really a matter of semantics...you're not calibrating the battery, per say...it's actually calibrating how android is reading the battery. (these phones use Li-ion batteries, which don't use memory, so they themselves never actually need "calibrated" like some older types of rechargeables)
But...as far as what this means to you, its kind of a big deal! It improves battery life in letting android know when your battery is actually at 100%. When flashing new kernels and ROMs, its very likely that the phone will read your battery at full, when in reality its probably less. So it would seem like your phone isn't getting as good battery life (when in actuality it just hasn't been charged fully but you don't know that because android reads it as full because it hasn't been calibrated )
also, without a calibration, you might notice your battery gauge draining oddly...for example, you might see it quickly drop from 100 to 89, then drop steadily to 72, and then hang for a while at 71 (these are all just made up numbers)
so it means alot! but everybody has different methods and i've never seen anything officially released by spring or samsung to confirm methods...
I will say this though...I've read plenty about how since these Li-ion batteries don't have memory, the DRAINING method, while maybe correctly calibrating your battery, actually HURT the long-term life of your battery.
so heres what ive always done:
(the parentheses are the state of the phone)
(phone on) charge battery till LED blue
(phone on) unplug, wait till LED off
[POWER OFF]
(phone off) plug in, wait till LED blue
(phone off) Unplug, wait till LED off
[POWER ON]
When completely booted, power off again
(phone off) plug in wait till LED blue,
boot into recovery, wipe battery stats
unplug, reboot phone and use
it's always worked so try it out
Actually I'm pretty sure it doesn't fully charge to prevent over charge.. and the whole deal with you guys chargings 2-3 times after the light turns blue is just killing the life of your battery.
Sent from my SPH-D700 using XDA App
My question why is this in devolpment?
Fyi: both methos work but the complete drain does kill battery life. The pluging in multiable times dont. Android nows wheb to stop charging the battery to prevent over charge.
Sent from my SPH-D700 using Tapatalk
something must be wrong....
With my battery because I've done the above procedure and my battery doesn't even last 5 hours. Its starting to get annoying. Any ideas?
XtaC318 said:
Actually I'm pretty sure it doesn't fully charge to prevent over charge.. and the whole deal with you guys chargings 2-3 times after the light turns blue is just killing the life of your battery.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
If it can stop at 92 percent to prevent overcharging, then it can do the same thing when it reaches 100 percent, no matter how many times you plug it in.
I don't know of many, if any li ion battery packs made today that don't have circuitry in them that prevents overcharging.
I put it in development because when you load roms, generally battery is a big concern. I cant tell you how many times ive searched for the same topic all over, I just figured it would be as helpful to others as it would have been to me had it been here and been a stickie at the top.
I've always thought battery calibration was more of a placebo effect, but I have no data either way. On a related note, here's an interesting article about battery stats and charging that was posted a week or so ago:
Android Police: Your Battery Gauge is Lying to You...
Having a battery keep at a full 100% for a long time is not good for li-on batteries. The 10% between 90 and 100% is basically used as a safety buffer. That's why the charge drops between 100 and 90 is much faster than the drops from 80 to 0. even though there ways to increase the actual capacity of the battery by using the methods above, you will still see a quicker drop from full to 90 almost instantly after unplugging the charger. I am in no way saying that those methods don't work in helping the phone read the actual charge of the battery, but they do help increase capacity a little bit. by rearranging the electrons in the battery. There actually is an article on google and on xda that backs it up. I'll try finding it
Sent from my Samsung-SPH-D700 using XDA App
Thank you a ton for posting this. Ive been trying to find a good thread on this all over the place and there never seems to be one. So thanks again.
will the "Drain Battery" way work with a droid1 with the default battery?
doublea500 said:
will the "Drain Battery" way work with a droid1 with the default battery?
Click to expand...
Click to collapse
Will work on any android device
Sent from my SPH-D700 using Tapatalk
mysteryemotionz said:
Will work on any android device
Sent from my SPH-D700 using Tapatalk
Click to expand...
Click to collapse
thanks believed it or not, you really helped me
mysteryemotionz said:
My question why is this in devolpment?
Fyi: both methos work but the complete drain does kill battery life. The pluging in multiable times dont. Android nows wheb to stop charging the battery to prevent over charge.
Sent from my SPH-D700 using Tapatalk
Click to expand...
Click to collapse
Lol.. wow alright.
Yes COMPLETELY draining a battery is really bad for a battery; infact if you do so you may end up with a 'bricked' battery.
But the phone also knows not to 'over drain' so with the method of clearing batt stats there's no harm done..actually. allowing your phone to die before charging is healthier than plugging it in before it dies.
I won't argue on the other note anymore; well simply because I don't know enough to continue just know I won't be taking that path
Sent from my SPH-D700 using XDA App
Thanks for the response. But also if you have a separate charger because you have multiple batteries, do you need to have to go through any of this? Or will the charger charge them to their true full state?
It will charge them to 100%. You'll notice it holds 100% for a lot longer.
Sent from my SPH-P100 using Tapatalk
The only thing that needs to be done to calibrate the battery is either flash at full charge or charge to full then delete batterystats, all this drain to dead and charge this way and that is pointless, though u will all argue otherwise, pointlessy
Sent from my Epic 4g
Yes thank you very much! I'm gonna give this a shot probably tonight after the Christmas Eve service and see what happens.
You should definitely add that NONE of this matters if your first usages out of the battery aren't proper. When you get the phone, you need to kill the battery before charging.. charge for 10-12 hours w/the phone off or in a dock, kill battery.. repeat 2 more times to condition the battery physically.
MODS PLEASE DELETE THIS IF YOU WANT ONCE VERIFIED
Basically i had 90 percent BAttery
I switched off the phone, Took out the battery to be sure it is completely turned off.
Plugged in my charger (im charging via PC at the moment, will test with wall charger later)
The LED Came on and then went out after 2 seconds
After ten minutes i took out the battery again and reinserted and powered on
My battery was 100 PERCENT
use battery indicator from market to check your current level or you can check it using *#*#4636#*#* and clicking battery information
Can you please check this. and post here ASAP.
Make sure your battery isnt fully charged (between 20 and 80 percent ideal), Turn off completely (pull the battery out and reinsert if you want to be sure)
Plug in your charger now
After 15 minutes
Take out battery and reinsert.
POWER ON
What is you battery now?
please post your before and after percentage here. THANKS
Mine too.
After CMW and S-Off it is not charging, same behavior. And my battery if fully discharged, which means I bricked my device since I just can't turn it on nor charge it...
:/
hmoroni said:
Mine too.
After CMW and S-Off it is not charging, same behavior. And my battery if fully discharged, which means I bricked my device since I just can't turn it on nor charge it...
:/
Click to expand...
Click to collapse
You can either let a friend charge your battery for you in his phone
Or
You can get a usb cable, any kind really, chop off the end that goes into the phone. There will be 4 wires exposed, you only need the red and black ones, pay no attention to the green or white wires or whatever color they are. Connect the exposed wire to the battery (to part that touches the prongs on the phone) and it will charge. All you have to do is find out on the web which of the 4 slots on the battery do what, and connect the positive (red) cable to the positive slot on the battery, and the black cable to the neg part of the battery.
In the worst case,you could charge your battery outside the phone with a power supply...
Not an easy way,especially if you're going on vacation...But it's a good thing to be aware from this!
Edit: Durps,you killed me!
my phone charge while off i see alot of people are suffering from this but mine still charge while off my led is on
The issue seems to be fixed with the official cwm recovery flashed from within rom manager.
...at least for me.
phonegod said:
my phone charge while off i see alot of people are suffering from this but mine still charge while off my led is on
Click to expand...
Click to collapse
so do i..wating for the update
phone will charge with working led if you have the new recovery image, v4.0.1.5 is available now and works for sensation.
I bricked!!
I bricked...
My battery was almost 1%, i removed the battery, and now I am f***ed...
None of my friend use HTC Sensation. and i m totally tensed what should i do...
Can anybody confirm if sensations battery is comatiable with Desire HD??
pnyppon said:
I bricked...
My battery was almost 1%, i removed the battery, and now I am f***ed...
None of my friend use HTC Sensation. and i m totally tensed what should i do...
Can anybody confirm if sensations battery is comatiable with Desire HD??
Click to expand...
Click to collapse
Buy a new battery.
pnyppon said:
I bricked...
My battery was almost 1%, i removed the battery, and now I am f***ed...
None of my friend use HTC Sensation. and i m totally tensed what should i do...
Can anybody confirm if sensations battery is comatiable with Desire HD??
Click to expand...
Click to collapse
walk into a phone shop, ask them if u can charge your battery for 10 mins in one of their phones.
Say something about software crash blah blah, they usually dont care at all, and will let you.
PS to confirm is version v4.0.1.5 the good one? ie will let you use/charge your phone in the "normal" way?
update your versions of rom manager ...the dev updated the recovery and now it does charge
Just install the new CWM version 4.0.1.5 from ROM Manager to fix this (HUGE) bug
I tried unlocking the bootloader. It worked fine. However when I tried to charge the battery after some time, the phone won't turn on. It simple shows a blink Red light in the indicator panel below.
Does anyone know how to resolve this issue?
Best,
Irfan
Happens to a lot of people
Just charge your battery for about an hour, and flash stock ftf.
Hit thanks if it helps
irfanark said:
IIt simple shows a blink Red light in the indicator panel below.
Click to expand...
Click to collapse
Red light indicates the battery is lower than 15%. Just recharge it for a while then try. Red is for <16%, Green+Yellow is 16-89, >89 is totally green.
abhi007.john said:
Happens to a lot of people
Just charge your battery for about an hour, and flash stock ftf.
Hit thanks if it helps
Click to expand...
Click to collapse
I charged the battery for almost 8 hours now... Still it show's red blink.... I think the battery needs to be replaced... Right?
irfanark said:
I charged the battery for almost 8 hours now... Still it show's red blink.... I think the battery needs to be replaced... Right?
Click to expand...
Click to collapse
do the following :
try charging with another charger / cable
see if your charging jack is loose and you need to see if your phone is charging
take battery out for 5 minutes.
Reinsert and try to turn it on. Don't put it on charging while you are trying to turn on. My phones only turns on if it is not being charged.
Use little saliva on terminals (use tongue) of battery and then insert it back and try to switch it on. Your tongue would give an idea if battery is faulty or not.
while trying to turn on your phone, make sure you are not charging your phone . Take out all cables /charger etc.
use a different battery
Try to boot into fastboot mode / flash mode and try flashing ftf.
see if that helps.
Also, if nothing works do give reply back with an updated and detailed description about what you did and why isn't it turning on.
Hey guys,
i have a problem with my opo. After a lot of reboot loops the phone do not start anymore. I have opened support tickets on the op site but no answer yet. I tried every thing that i found like 5times holding power button for 20sec, waiting 12 hours and charging then, and so on. Nothing works the screen is black and the opo seems to be dead. But today i pulled the usb cable to my pc and when i am holding the opo power button i hear the windows sun when a usb device is plugged in, but i can't install opo drivers or anything. maybe someone know what to do to have access on the phone from pc maybe to reflash the phone or something else.
Hope to hear from you guys.
regards
peter
Have you tried loading the bootloader by hoding the vol- and power button?
Have you tried booting in fastboot mode by holding the vol+ and power button?
Can you boot into fastboot of you can then check the thread in the Q&A section about fixing loops etc and flash the persist.img that should fix it providing you can boot into fastboot.
The phone is totaly black. I can't boot into nothing. I read that maybe when i put out the battery and charge it with a charger maybe than the phone start?! But how many Ampere do i need to charge the battery ? Here the link:
forums.oneplus.net/threads/solution-low-battery-or-full-black-screen-opo-not-booting-due-over-discharge.88107/
When i pull it into the computer only the sound from windows is playing that the phone is plugged in. But i can't install the drivers because of the debugg mode that i have to start.
Does the phone show up though when plugged in?
charge it with a charger maybe than the phone start?! But how many Ampere do i need to charge the battery ?
Click to expand...
Click to collapse
NEVER charge a Li-Ion battery directly without it's charging circuit unless you know EXACTLY what you are doing and even then you should not. This is especially true as the OPO seems to have a Li-Po battery which is even more dangerous when not charged correctly.
To answer your question anyway:
You'd need a stabilized power supply with Amp limiting (most common: lab power supplies) . You don't "need" a specific amperage to charge, only a specific voltage (and even that can vary depending on how fast you want to charge). Up to 1Amp should be safe enough, while the maximum charging voltage is indicated on the battery and amounts to 4.35v.
DO NOT and NEVER use those cheap variable power supplies since they are NOT stabilized and will vary strongly, up to 50% variation in Amperage and Voltage are normal for those.
But i can't install the drivers because of the debugg mode that i have to start.
Click to expand...
Click to collapse
Which debug mode? The Windows one for unsigned drivers (there are tools for that...) or the phone one?
d4fseeker said:
NEVER charge a Li-Ion battery directly without it's charging circuit unless you know EXACTLY what you are doing and even then you should not. This is especially true as the OPO seems to have a Li-Po battery which is even more dangerous when not charged correctly.
To answer your question anyway:
You'd need a stabilized power supply with Amp limiting (most common: lab power supplies) . You don't "need" a specific amperage to charge, only a specific voltage (and even that can vary depending on how fast you want to charge). Up to 1Amp should be safe enough, while the maximum charging voltage is indicated on the battery and amounts to 4.35v.
DO NOT and NEVER use those cheap variable power supplies since they are NOT stabilized and will vary strongly, up to 50% variation in Amperage and Voltage are normal for those.
Which debug mode? The Windows one for unsigned drivers (there are tools for that...) or the phone one?
Click to expand...
Click to collapse
Thanks for you answer, at first i will only pull out the battery and reinsert it. Maybe it help and the phone will start again. If not i will at first try to flash a new rom when i can install the driver. And its the debug mode on the phone because i cant turn the phone on. If nothing will help i try to charge the battery. So I need a 3,7 Volt charger with about 1 A to revive the battery ?
nikzDHD said:
Does the phone show up though when plugged in?
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Yeah it is shown but only as a COM port or something like that. I have to look at it at home.
Regards
sohohopeter said:
first i will only pull out the battery and reinsert it.
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The OPO's battery cannot be removed.
Atleast not without any technical knowledge.
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Gamm86 said:
The OPO's battery cannot be removed.
Atleast not without any technical knowledge.
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Click to collapse
Thanks for you information but i have a bit of knowledge in that case. ;P
What i don't know is how to charge the battery when the voltage fall down under 3 volt.
Can i use something like this charger : ?
conrad.de/ce/de/product/261767/Robbe-1-8560-11-15-VDC-230-V-Ladegeraet-Power-Peak-A4-EQ-LCD-fuer-Akkus-Ladestrom-max03-3-A?ref=detview1&rt=detview1&rb=1
How many cells have the lipo battery from OPO ? 1 or more ?
Regards
If your PC recognises your phone when you connect it, doesn't that mean your phone is on?
Wouldn't a faulty screen be the cause of your problem?
Gamm86 said:
If your PC recognises your phone when you connect it, doesn't that mean your phone is on?
Wouldn't a faulty screen be the cause of your problem?
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Click to collapse
No the screen worked right. Before the phone do not start, the phone have the reboot problem. After that only the low battery screen appears. I tried to load the phone like they have written in the forum and it worked at first but the rebooot still goes on. I think the battery is fully gone and because of that the phone can't boot. One time the screen also shows a linux symbole. Very strange.
Did you by any chance got your phone working ?
'coz i am also facing the issue, my phone is completely dead and no matter what it cannot start.
Battery problems are among the biggest concerns for smartphone users, which is why XDA offers so many useful tips for solving battery drain issues. If you notice that your battery performance and duration has decreased, it could be time to calibrate your battery. Today i will explain what battery calibration is, how to tell if you need to do it and how to do it, with or without root access.
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How do I know whether my battery is the problem?
First of all you need to identify why your battery performance has decreased: is it the Android system's calibration or the battery itself? We'll move onto calibration in the sections below, but you should check if your battery itself is damaged first.
If your phone has a removable battery cover, turn of your phone, remove the cover and inspect the battery. Look for bulges or leaks. In the image below, the battery of Galaxy S6 battery swelled up and pushed the non-removable back off the phone. If your phone also has a non-removable battery, keep an eye out for similar occurences. If your phone doesn't sit flat on the table anymore, that could also be a sign of a swollen battery.
If you're satisfied that the battery itself is not the problem, you can move on to the steps below. If you think your battery might be the problem (even after trying to recalibrate it), i would advise you to take it to a repair shop for an expert's opinion. If it turns out you need to replace the battery, go with an original or reliable third-party battery. Scrimping on a cheap knock-off battery only leads to more headaches in the long run.
Keep in mind that there are plenty of other things that can cause a battery to malfunction.
If you've just updated the firmware on your phone, battery drain is a common complaint, so you might want to clear the cache partition on your device.
What is calibrating a battery?
The Android operating system has a feature called Battery Stats, which keeps track of battery capacity, when it is full or empty. The problem is that it sometimes becomes corrupted and starts displaying data that isn’t real, which, for example, causes the phone to turn off before it reaches 0 percent. Calibrating your Android battery simply means getting the Android OS to correct this information so it is reflective of your actual battery levels once again.
It's important to understand that you can't actually calibrate the battery: it is, after all, just a cell that stores power and discharges. However, lithium-ion batteries do include a printed circuit board (PCB), which serves as a protection switch to stop them exploding or deep discharging.
Smartphone battery myths
Lithium-ion batteries don't have a memory so there's not much you need to do to keep them running as they should. The problem lies with how the Android system reads and displays the current capacity of the battery, not the battery itself.
The same goes for the myth that deleting the batterystats.bin file will magically recalibrate your battery. That file (on most devices anyway) simply stores data about what is using the battery when it is not being charged. It is also reset every time a battery is charged to over 80 percent and then disconnected.
The batterystats.bin file contains the info you see made prettier in the Battery section of your phone: it's the Android system keeping track of your battery's usage, per charge cycle. When we talk about battery calibration, it's the percentage meter that gets out of whack, and that is what we need to fix.
How to calibrate an Android device battery without root access
The old 'fully charge and discharge' approach stands as one of the simplest ways to 'recalibrate' your Android battery. But if your phone battery is causing you real problems, it's worth taking the risk.
Method 1
1. Discharge your phone fully until it turns itself off.
2. Turn it on again and let it turn itself off.
3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.
4. Unplug your charger.
5. Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on-screen as well.
6. Unplug your phone and restart it. If it doesn't say 100 percent plug the charger back in until it says 100 percent on screen.
7. Repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without being plugged in.
8. Now, let your battery discharge all the way down to 0 percent and let your phone turn off again.
9. Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
Remember that it is not recommended to perform this process all the time. Even when your battery is so dead your phone won't even turn on, your battery still has enough reserve charge to avoid system damage. But you don't want to poke the tiger with a stick. Perform this process once every three months at the most. If it is required more often than that you have bigger problems at hand.
Put plainly: fully discharging a battery is bad for it. Trying to overload a battery is also bad for it. The good news is that charging batteries automatically shut off when their safe limit is reached and there's always a little in reserve even if your phone won't start. But again: do this only when really necessary, because it does have a negative impact on battery life.
How to calibrate Android device battery with root access
Even though I'm not convinced that clearing the batterystats.bin file has any meaningful effect on how the Android system reports remaining battery charge, there are those who swear by this method.
So in the interests of fairness, we've included the process for you here (it is true that different manufacturers use the batterystats.bin file for different things). It's basically the same process as above but with the added step of a root-enabled app.
Method 2
1. Discharge your phone fully until it turns itself off.
2. Turn it on and let it turn off again.
3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.
4. Unplug your charger.
5. Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on the screen as well.
6. Unplug your phone and restart it. If it doesn't say 100 percent, plug the charger back in until it says 100 percent on screen.
7. You want to repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without being plugged in.
8. Now, install the Battery Calibration app and, before you launch it, make sure your battery is at 100 percent again, then restart.
9. Immediately launch the app and recalibrate your battery.
10. Once you've calibrated your battery, discharge it all the way down to 0 percent and let your phone turn off again.
11. Fully charge the battery one more time without interruption while it's switched off, and the Android system's battery percentage will be reset.
That's it. Have you tried any of these methods? Do you know an alternate way to fix battery problems? Let me know in the comments.
Source : AndroidPit
When you say "allow the battery to discharge", I.e. drain to zero, must leave my phone idle for a long as it takes to drain naturally, or can I run a battery-heavy app to speed the draining?
Also, what is the best charger to use for my phone, and how much would it cost to replace the battery?
Thank you
AndroidAssociated said:
When you say "allow the battery to discharge", I.e. drain to zero, must leave my phone idle for a long as it takes to drain naturally, or can I run a battery-heavy app to speed the draining?
Also, what is the best charger to use for my phone, and how much would it cost to replace the battery?
Thank you
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You can use the phone any way you want, just don't charge it in between.
Charger and cost would be different for different devices, so ask someone who has your device.
anandmore said:
You can use the phone any way you want, just don't charge it in between.
Charger and cost would be different for different devices, so ask someone who has your device.
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Click to collapse
Thank you, it worked well.
Now I am having difficulty rooting my device. I made a thread and am hoping I receive a solution.
When you do the first step is with the phone turned off, then you do the plug and unplug until is 100% and you fully discharge the phone (until it's off). After that, the next charge must be with the phone on or off? (Just to be clear, I'm talking about step 9)
GermanGuellB said:
When you do the first step is with the phone turned off, then you do the plug and unplug until is 100% and you fully discharge the phone (until it's off). After that, the next charge must be with the phone on or off? (Just to be clear, I'm talking about step 9)
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Click to collapse
with phone on.
anandmore said:
with phone on.
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Click to collapse
And how long is the charging time, until it reaches 100% or an exact number of hours (i.e. 8 hours or something like that)? Again, talking about step nine
Thanks. Will try the same.
That second photo of S6 looks scarier for a phone with non-removable batteries. Is that the case with most of the phones with non-removable batteries?
anandmore said:
with phone on.
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Click to collapse
This is confusing to me... In the root steps (step 11), it specifically says to charge it with the phone *off*. So after using the device until it shuts off, should you recharge it to full while the device is on or off? Or is it different depending on whether your device is rooted or not?
The way I understand it - step 9 (which is what the poster was questioning) in the non-rooted steps is the same as step 11 in the rooted steps - and that is where I'm seeing conflicting information with the answer you gave that poster...
Can you please clarify?
Thank you.
Thanks a lot for this tricks, i will try it.
Letting your phone discharge to 0, can damage the battery!?
my phone shut down before 0%.i.e somewhere between 0to 5%.
its swicthed off directly without showing brand logo
akashnaik1996 said:
my phone shut down before 0%.i.e somewhere between 0to 5%.
its swicthed off directly without showing brand logo
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Click to collapse
So reboot the phone, then wait that it shutdown itself, then try to reboot it again.
Repeat it until you can't reboot the phone.
Sorry to dig up an old thread but ive tried the battery calibration thingy and my phone got stuck on 100% after every time i did this method of letting it die completely and leaving it off and charging overnight, when i turned it back on it stayed at 100% for an hour of heavy use. I had to do several restarts and cache wipes to get it fixed, but battery percentage still off by 5-6% when the phone is off vs when its on, it shows two entirely different percentages when plugged in and when turned on.
Didn't work Help
I tried doing the method but my phone doesn't start up again after it dies
I tried another method a month ago and still didnt work
In the first step you mention that we must allow the battery to fully discharge, now does that mean that we discharge it until the phone indicator shows 0 and shuts down or we keep turning the phone on until it does not turn on anymore. Because I think my battery still has substantial amount of charge even when the phone is showing it as 0.
Hi!
this guide is still valid? as we are today on 2018 and OREO era?
riccetto80 said:
Hi!
this guide is still valid? as we are today on 2018 and OREO era?
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Yes. Totally.
@helblazer with Non-Root you said on 9 step charges battery again to 100% & you have battery reset, and on post #7 you answer we should charges phone while phone is On, how we charge phone while its on, since its already off on step 8,
8. Now, let your battery discharge all the way down to 0 percent and let your phone turn off again.
9. Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
you might want o answer this question again, after 8th step, phone batter is 0% & it auto off, we need to charge it with phone off or on? if on how it can on if battery is 0% & it auto off,
i am waiting for your reply since i am now on 8th step & need to do step 9,
Thanks.