Defy Not Charging - Question Mark? - Defy Q&A, Help & Troubleshooting

Hi all,
Hi hoping someone could help, a guy at work has handed me his Defy as its not charging. Plugged it in and after the M splash screen it goes to the battery charging screen. Only problem is that just shows a massive question mark ? Anyone know what that means please? My ony thought is its not a a genuine battery so the phone is having diffaculty reading the charge level or something ?
Cheers

I can think of three reasons why the battery why the battery wont charge:
You are not using the original charger
You don't have the right battery
The battery is defect
It is easy to test point one: Just plug your phone in an USB-port of a running PC.
Otherwise you could buy an original battery, or if you know someone else with a defy, swap batteries and test...

I too had same issue, used universal battery charger for charging the battery for some time and then on its working fine.
Sent from my MB525 using XDA Premium App

And you can charge it with an USB cable and a PC?

It just happened to me two days ago. A battery pull and put back solved it. There must be something with the connections. Got me. Only happened that one time.

I too had same issue,how did you solve !?

I too had same issue in 7 mounts

I have the same problem. If I connect my defy to a pc the white LED of charging turn ON but it doesn't charge. It can boot but it turn off after the boot because have no charge!

you could also have a wrong battd!

I have one charger that charge some android phones ( old xperia and samsung) but doesn't charge my defy or a newer samsung.
Anyway, I use an original samsung charger (don't buy those cheap $1 ones) and it can charge any phone.
It's strange because the voltage written written on both is the same and so is the mini usb plug (the amps are higher on the original though).

Only the original charger that came with the phone will charge mine. Any other charger and I get errors.
Sent from my MB525 using xda app-developers app

Happened to me that the brand new battery didn't charge, just a question mark on the notification bar(I even charged via mcGyver Style). Check your connection pins on the battery between + and -. It couldn't check the battery load status. Check yours if still have the problem.

Ya are saying use a usb charger to charge our android but ya are not solving our problems for those who like the charging pads mine charges when phone is on and in sleep mode however when turned off and on the charging pad it shows the question mark on the battery symbol the phone works fine with the charging pad when in sleep mode just not when its turned off I like to just take my phone off the charger and go instead of unplugging it.

Related

XDA Mini S....Dead....no really

Hi all,
Right, the battery on my XDA Mini S was getting low, so I plugged it into the wall charger (not an official one, its a motorola mini usb charger 5v, 850mA)
It was left charging for a couple of days. I think? Someone could have turned off the switch? But the switch was on this morning
Anyway.....It doesn't boot, no signs of life at all, if i plug it into the wall charger then there's no lights.
Doesn't even go to boot loader.
No response when plugging it into USB.
I've tried hard reset, no nothing.
It's weird because its been working perfectly.
I've been googling and reading the forums here.
I've had a go at "jumping" or reviving the battery. Maybe I'm doing it wrong?
I bought a 9v battery, took apart a mini usb cable and removed the red and black wires. I've been holding the wires from the 9v battery connecters to the tips of the + and - plates.
Still nothing.
Can anyone suggest anything?
Surely it can't just become a paper weight suddenly?
This hasn't happened from flashing either.
I've also tried another charger, which didn't work, so the charger isn't the problem.
Wohoooooooooooooooooooooooooooooooooooo!
Fixed it.
I tried "reviving" the battery again.
Except this time I tried connecting the + and - to different plates.
My sticker on the back of my battery lies, and tells me the wrong + and -
So I googled what an XDA Mini S battery should REALLY look like....voila!
better buy a 1AMP Wall charger and don't let the battery completely discharge.
Yeah, I heard this problem with a friend of mine as well. Battery ran out completely and it wouldnt charge at all (seems that it only charges if the phone is on, so, yeah, figures).
My suggestion on that case would be to try something else to charge the battery alone, dont know a specific charge but sometimes little things like putting it in the freezer for some time works to give it a tiny little life back, enough to turn on the phone, you never know.
hey i have same problem with that
im using 9 v batteries and connect to mda batteries
but still nothing
what must i do. . . . . .
would someone help me
i try all but still nothing
2 days a go my mda can on but only bootloader and then off
till now im so confused
please help me
i run out of battery too and now can't find anyway to turn on my mobile to charge. need some help too. hix
someone help us........................
ok, found the way and revive my phone
1, take a usb cable and cut it
2, there are 4 wires: red,black,white and green
we need red and black so cut those white and green
3, see on your pin, there are 6 bronze square, the frist and last have + and - icon on it
4,connect usb cable to r computer
5,red wire to the square has (+) icon
black to other
wait about 30s
6, place pin to yout phone and power on, u have some second to recharge it
nice, i'm charge my phone
it's not work for me
stiil freeze

HELP > Battery Is Not Charging at all (Via WallCharger / Computer USB)

Damn it..... i dont know what happened
it is still working perfectly yesterday
i did not drop the phone or battery, today the battery is still at 40% and as usual, before i went to sleep, i plug my phone on the USB Cable connected to my computer... but it is not charging.. and here i thought the error comes from my USB Cable , so i plug it into my wall charger ... but it is not charging at all!!!
and i thought, perhaps i have installed something , or some os faulty issue ... so i reset the phone via SETTINGS > About > Reset Phone
and after the reset.. it is still not charging...
argh what should i do... please help... anyone
i purchased this phone from singapore.. and i am indonesian.... the battery is currently at 30% , i am so afraid after it runs out of its juice, it will go away forever (because i cant charge it) T.T
what should i do....
(Is this battery and the one used on Galaxy S is the same? My sister has Galaxy S, should i try using her battery and try to charge it from my phone? .... ARGHHHH the omnia 7 is not even available yet in indonesia) T.T
Anyone help T.T
Get another charger it will charge get a new 1
Sent from my Nexus One using XDA App
you sure it is the charger?
You are talking about the wallcharger right?
usually it already charging via USB Connected to a computer.. but this time... the computer does not even detect if anything is connected.... (nothing happened when i plug this phone to my pc, usually there is a notification sound playing and my zune will autorun)...
damn it ... why this happened.. yesterday it is just fine (
damn it .. i am sleepy already..
i will go and sleep for now.. and left my phone turned off and plugged in the WallCharger
and hopefuly.... sigh.. it is still charing although no indication whatsoever is showing that
MAN... should i just try bang the damn battery hard onto the table... perhaps some of the chip inside the battery is misplaced by whatever unknown forced?!
damn it.. i never dropped the phone.... ARGHHHHHHHHHHHHH
this is so frustrating
Relax
Relax man your charger is bad.
I have the same problem but my girlfriend have a Wave and start using his charger and everything works fine.
Buy a new charger
question
can i use any charger from any phone for this Omnia 7?
(the one that has USB Output of course, such as xperia1 charger)
if we can, then it is also not working.... and why suddenly it wont do anything when i plugged it in my Computer USB
the very same computer works perfectly yesterday, and suddenly it is not working..
I suspect either one of these is the problem :
1. the micro USB Connector in the Phone is broken somehow , hence the when we plugged it on, it does nothing
2. the Battery (which if i am not mistaken has a chip inside) is broken, hence explain why it is not charging at all (which a bit does not make any sense, if it is just not charging at least when i plug it on the computer, it should still detect this device...)
I am from indonesia, i can ask my friend who is returning from melbourne to purchase a new battery and new charger hopefuly
Okay to make things simpler.. i have a sister who own a Galaxy S
can i use the galaxy s wallcharger to charge my omnia 7? ah hell,i will try it anyway...
okay according to this
http://www.samsung.com/us/mobile/cell-phones/SGH-I917ZKAATT
it goes great with galaxy s standard battery...
so i suspect, i can use my sister galaxy s standard battery and try to charge it using my cellphone
and i can also try to use my sister galaxy s wallcharger to charge my battery...
okay lets try ... hopefuly.... it is only the battery.. i can easily purchase a new battery... if it is the USB Connector on the phone... damn, how on this green earth can i charge my battery? OH we can use the kickstand battery charger?
hmm suddenly it is working now :O
thanks God... hopefuly it will never ever happened again T.T
Great it is working again
Any possibility that there is a way that the device forces a full recharge cycle to calibrate the battery?
Honestly i guess so.
I have the same problem...i can t charge my i8700 at all...what did you do to charge again???...i use a universal charger where i put my battery ...this happens for two weeks now..
cody28 said:
I have the same problem...i can t charge my i8700 at all...what did you do to charge again???...i use a universal charger where i put my battery ...this happens for two weeks now..
Click to expand...
Click to collapse
Try allowing the phone to run out of battery and turns off, then plug it into the charger, i would love to know if this is a failure or be design behavior.
Put the battery in the phone,
Wait untill the phone goes completely off.
Plug the phone to the wall charger.
write back here
i tryed this but the same problem it turns on but only while the charger is pluged in when i pull it out the phone turns off...i try to hard reset nothing..there is no update to work with non retail devices...the phone is from three uk...i m from romania there is no way to return there to an service..(
Having the same problem. Been working flawlessly.Plugged it in a couple of hours ago,but it doesnt appear to be charging.
When I use the USB charger on the PC, it is recognised, and Zune opens up fine and Phone shows up.
Have tried two Mains chargers, the Omnia 7 one and the one that came with my Galaxy S, same problem.
EDIT:
Left it plugged in overnight and it charged fine.Used phone, going down to about half battery.Plugged it in and seems to be charging without a problem!
I've got the same problem as you guys for a couple of days now.
Thanks for your reactions i will try everyone of them untill my omnia 7 charges again
knetsooj said:
I've got the same problem as you guys for a couple of days now.
Thanks for your reactions i will try everyone of them untill my omnia 7 charges again
Click to expand...
Click to collapse
Do you have a bit of battery left?
Windows Phone 7 devices power up when you plug them in. Maybe the OS is not booting and because it is S-AMOLED display we cannot tell if it is on or not.
Try Hard Resetting without booting WP7
http://forum.xda-developers.com/wiki/index.php?title=Samsung_Omnia_7
Make sure you have a bit of power though, you don't want that to stop in the middle of the proccess
This has happened to me a couple of times. I think it's just a reporting bug, the battery is actually charging. I just have to restart the phone and it magically has charge
battery is charging too long
How long does take to fully charge the battery? For me it's about 4-5 hours with wall charger. Should not it be faster?
Mine is about the same for a full charge and I have also noticed my Omnia 7 not charging properly when I plug it into my MacBook Air however it does seem to charge fine on my Dell laptop for work.
Maybe the Omnia 7 is very sensitive for charging over USB on a laptop and needs a certain voltage for it to charge properly?
What works for me:
1. Original charger
2. iPhone 4 charger
3. iPhone 3GS charger
4. Blackberry Curve charger
Not tried any other micro-usb cables yet but will do at some point in the future.
I had the same problem too. The battery was suspiciously showing high levels for the last three days (went without a charge!). In the morning, the alarm did not go off, and I realised the battery was dead dead! Charged (wall charger) for 1.5 h without any use -- would turn off if I unplugged. Tried with the USB cable too (connecting to computer) and no use.
I read this post, and tried with the wall charger again, and it shows me ~60% battery, and seems to be charging normally!
Will post an update, but really seems like a forced discharge cycle to me too!!
Thanks for this thread, and I am interested in seeing if any more ppl are seeing such issues!
At least once, but sometimes twice a week, my battery keeps discharging while my Omnia 7 is attached to USB. And even the icon shows it should be charging.
The solution I use is taking the battery out for 10-15 seconds, put it back in, switch the device on, and charging works like it should be.
I hope they come up with a solution, because it's quite annoying.
Willem
Netherlands

Question mark battery indicator

Strangest thing happened to me... Battery died while i was at work. When I got home, I plugged it in to the wall charger and nothing happened (not even the white plug icon appeared). I unplugged it, powered on and plugged it in right away before it shut off. Looked up at the battery indicator to make sure it was charging and I saw a question mark over the battery icon. WTF...
Since then, my battery has failed once to fully charge (or at least indicate that it was fully charged).
Anyone else had this happen to them? WTH is wrong with this POS...
Get a warranty replacement for the battery. It seems like it failed for some reason.
I think its battery connector issue.
By the way have you tried using different charger n charging cable?
If it doesn't charge with any other cable as well better get a replacement
Sent from my HD7 T9292 using Board Express

Hd2 not getting charged!!!! Pls help me

Hi Folks,
My HTC HD2 Android not getting charged either by a wall charger or usb via my pc... i dont what happened suddenly it got turned off due to low battery and when i pluged it for chrging its not showing orange LED notification of charging. when its off and plugged in Orange LED blinked once and Phone got switched on. And when its connected to PC for abt 3 mins it will show charging and after that it shows discharging and battery drains when it shows it discharging . pls help me out coz i dont want to loose my Leo .
Thanx in advance,,,,
Check the pins at the phone which connects to the battery. Sometimes they are deformed and this cause the charging/not charging problem.
But... in this case I don't think this is the problem, because this problem should not affect direct charging from usb cable.
Anyway check them just for sure!
Thanks VDodi
VDodi said:
Check the pins at the phone which connects to the battery. Sometimes they are deformed and this cause the charging/not charging problem.
But... in this case I don't think this is the problem, because this problem should not affect direct charging from usb cable.
Anyway check them just for sure!
Click to expand...
Click to collapse
I tried diff cables but its the same...
Magldr doesn't support charging when phone is off.
Nigeldg said:
Magldr doesn't support charging when phone is off.
Click to expand...
Click to collapse
so if your phone dies how do you get it to charge?
Wdustin1 said:
so if your phone dies how do you get it to charge?
Click to expand...
Click to collapse
Best way is not to let it run out
However, normally it will have enough charge left once it dies to boot up far enough to start charging. If this is not the case, then you have to cut open a USB cable and use the red and black wires to charge the battery. I have not had to do this and am unsure as to how to do it but there are tutorials. It seems simple enough.
Sarathdna said:
Hi My HTC HD2 Android not getting charged either by a wall charger or usb via my pc... i dont what happened suddenly it got turned off due to low battery and when i pluged it for chrging its not showing orange LED notification of charging.
Click to expand...
Click to collapse
Consider, as was previously suggested, a cable connection issue.
While you do not currently have the luxury of looking at your status icons, I have found that, on occasion, when I plugged in the phone to charge, the status icon indicated a USB connection, rather than a charging icon. Unplugging the cable and re-inserting the cable fixed it.
Note that new high quality cables can exhibit the same issue.
You have nothing to lose... Give it a shot.
Good luck.
----
Sent from my ICS HD2 with XDA Premium
Nigeldg said:
I have not had to do this and am unsure as to how to do it but there are tutorials. It seems simple enough.
Click to expand...
Click to collapse
Take out battery, plug chopped up USB cable into wall charger, use fingers to hold red to + black to -, count to twenty, battery in phone, phone into bootloader, real charger cable into phone and wall charger, leave 10 mins, reboot into android. (Can charge all the way in bootloader, but it seems slower than when android is running.)
samsamuel said:
Take out battery, plug chopped up USB cable into wall charger, use fingers to hold red to + black to -, count to twenty, battery in phone, phone into bootloader, real charger cable into phone and wall charger, leave 10 mins, reboot into android. (Can charge all the way in bootloader, but it seems slower than when android is running.)
Click to expand...
Click to collapse
By 'tutorials on how to do this' I basically meant your posts
As previously said if you're using magldr you need to be booted into Android before the phone will charge. You can try to warm the battery up in your hands to squeeze the last bit of power out of it to boot up. Or there are standalone hd2 battery charges you can buy from eBay that charge your battery outside of the phone, they're pretty cheap.
Sent from my HTC HD2 using XDA App
As Samuel said you can charge phone in bootloader. Just try!
Had to buy external charger
item # M00366 this charger was cheap has led's that change from red to blue as the battery charges and has a usb port so you can charge a battery in phone at the same time.
I'd been alternating tween an extended battery and the original when my HD2 started discharging while plugged in. same batteries and nearly a year of typhoon's excellent ROM progression then wham dead batteries....

Should i buy battery, please help?

Hello. I am using b528 rom.
And my battery goes around 3-4 hours. I always charge, i dont know how my battery became so bad. I am using it for 1 year and 5 months. I always left on usb charge on nights, i use even if it has low charge etc, so mybe because of those.
So now i want to buy new battery because i need this phone. Maybe usingh two batteries can help me?
http://www.ebay.com/itm/2x-1500mAh-...494096?pt=PDA_Accessories&hash=item53ef904150
Like that, a home charger, charging the 2. battery in the night and next day, when main battery finished, i can use other.
Or
http://www.ebay.com/itm/New-1500mAh...282048?pt=PDA_Accessories&hash=item4abac88000
only another battery and charging in the phone both in the night.
http://www.ebay.com/itm/1X-1500mAh-...8?pt=PDA_Accessories&hash=item2c60442a26#shId
http://www.ebay.com/itm/2x-1500mAh-...6?pt=PDA_Accessories&hash=item337a778e7a#shId
What do you suggest, please tell me about what you do , how you use and suggest me.
Cursed Chico said:
Hello. I am using b528 rom.
And my battery goes around 3-4 hours. I always charge, i dont know how my battery became so bad. I am using it for 1 year and 5 months. I always left on usb charge on nights, i use even if it has low charge etc, so mybe because of those.
So now i want to buy new battery because i need this phone. Maybe usingh two batteries can help me?
http://www.ebay.com/itm/2x-1500mAh-...494096?pt=PDA_Accessories&hash=item53ef904150
Like that, a home charger, charging the 2. battery in the night and next day, when main battery finished, i can use other.
Or
http://www.ebay.com/itm/New-1500mAh...282048?pt=PDA_Accessories&hash=item4abac88000
only another battery and charging in the phone both in the night.
http://www.ebay.com/itm/1X-1500mAh-...8?pt=PDA_Accessories&hash=item2c60442a26#shId
http://www.ebay.com/itm/2x-1500mAh-...6?pt=PDA_Accessories&hash=item337a778e7a#shId
What do you suggest, please tell me about what you do , how you use and suggest me.
Click to expand...
Click to collapse
Try other ROM... :fingers-crossed:
Calibrate your battery? Wipe Battery Stats?
Somcom3X said:
Calibrate your battery? Wipe Battery Stats?
Click to expand...
Click to collapse
I cant open phone. It doesnot charge. I dont know the reason is if the battery or cable. It shows red led so the charge is very low and it closes immdiately.
Cursed Chico said:
I cant open phone. It doesnot charge. I dont know the reason is if the battery or cable. It shows red led so the charge is very low and it closes immdiately.
Click to expand...
Click to collapse
Maybe the phone bricked so try to connect an USB cable to your phone without battery if not try to connect it with the battery for some minutes.
★HUAWEI IDEOS X5 U8800H★
Mahdial said:
Maybe the phone it self is the reason so try to connect an USB cable to your phone without battery if not try to but it with the battery for some minutes.
★HUAWEI IDEOS X5 U8800H★
Click to expand...
Click to collapse
I connected another micro usb cable but same, doesnot get charge. Without battery still same, doesnot get charge. What is reason can bnE?
Update, i connected again without battery and it opened. It worked, it charged %0 charge. So my battery is broken?
Cursed Chico said:
Update, i connected again without battery and it opened. It worked, it charged %0 charge.
Click to expand...
Click to collapse
Connect your phone without battery. After it completely boots put your battery in the phone for 5 minutes and see if it charges or not.
★HUAWEI IDEOS X5 U8800H★
Mahdial said:
Connect your phone without battery. After it completely boots put your battery in the phone for 5 minutes and see if it charges or not.
★HUAWEI IDEOS X5 U8800H★
Click to expand...
Click to collapse
While phone is open and connected to usb? Is not it dangerous?
Cursed Chico said:
While phone is open and connected to usb? Is not it dangerous?
Click to expand...
Click to collapse
I don't know but I did it sometimes ago. Why it is dangerous?
★HUAWEI IDEOS X5 U8800H★
Mahdial said:
I don't know but I did it sometimes ago. Why it is dangerous?
★HUAWEI IDEOS X5 U8800H★
Click to expand...
Click to collapse
I dont know, maybe it can hardm the software. I did this after minutes of showing "no charging", it stupidly started to charge. For 20 minutes, it is now around %8.
I think my cable has problem because when i move the cable, it disconnects. But my battery is not best i think. I wiped battery stats, fixed permissons. I dont know what to do now. I dont want to buy another battery but i dont know.
Update
I told i used my brother's usb cable and it charged until %8. Then i connnected my usb cable, it showed it was charhging but it was still %8 after 10 minutes so i took of, and then it showed %1. So i think my cable is broken? Now i am charging via ac but phone shows usb charging and it is still %2. Should i countinue or take off ?
Cursed Chico said:
Update
I told i used my brother's usb cable and it charged until %8. Then i connnected my usb cable, it showed it was charhging but it was still %8 after 10 minutes so i took of, and then it showed %1. So i think my cable is broken? Now i am charging via ac but phone shows usb charging and it is still %2. Should i countinue or take off ?
Click to expand...
Click to collapse
Keep it on for atleast 20mins in USB w/o battery in. Then insert battery and charge for about 2 hrs w/o touching. It should be about 5%. Let it charge all night w/ AC.
Sent from my u8800-51 using xda premium
Somcom3X said:
Keep it on for atleast 20mins in USB w/o battery in. Then insert battery and charge for about 2 hrs w/o touching. It should be about 5%. Let it charge all night w/ AC.
Sent from my u8800-51 using xda premium
Click to expand...
Click to collapse
Hello all, I'm having the same issue with an AT&T Impulse 4G, aka the wonderful Huawei U8800-51... This is running the stock AT&T OTA 2.2 froyo version, never been rooted or messed with.
It won't charge really at all, and I've tried a new battery also. It will boot and run OK when connected via USB, with no battery installed. I've only been able to get it to 12% battery, I did this since I wanted at least 10% charge to do an FDR. It won't last when charging on the AC, I've gotten the battery to around 5% on USB and then powered it off, then plugged it into the wall charger. I've tried both the Huawei OEM charger (1mA) and a replacement charger (650mA).
After a while of being plugged into the wall, the phone won't boot and the red LED just stays lit. I have to remove the battery and plug it in via USB to get it to boot again.
Is there anything in the OS that can go wrong and not let it charge the battery? (even though the screen shows the lightning bolt in the battery icon). I've gotten a battery monitor widget installed from Wifi. Other than that nothing has been installed whatsoever, it's FDR wiped, cleared cache, and the only other thing I've done is surfed the web a few times to verify connectivity after each FDR.
Or do I have a hardware problem? I've used different AC and USB cords, wiggled them a little bit in the port on the phone - it doesn't do anything and it's all the same - it just won't charge.
Or do I need to charge the battery externally somehow to some decent level and then throw it in the phone? Is there anything I can try to do from the basic OS or an app I can try to revive a battery (I have two) and get it to at least charge the battery fully just once so I can mess with it for more than a few minutes at a time?
jp233 said:
Hello all, I'm having the same issue with an AT&T Impulse 4G, aka the wonderful Huawei U8800-51... This is running the stock AT&T OTA 2.2 froyo version, never been rooted or messed with.
It won't charge really at all, and I've tried a new battery also. It will boot and run OK when connected via USB, with no battery installed. I've only been able to get it to 12% battery, I did this since I wanted at least 10% charge to do an FDR. It won't last when charging on the AC, I've gotten the battery to around 5% on USB and then powered it off, then plugged it into the wall charger. I've tried both the Huawei OEM charger (1mA) and a replacement charger (650mA).
After a while of being plugged into the wall, the phone won't boot and the red LED just stays lit. I have to remove the battery and plug it in via USB to get it to boot again.
Is there anything in the OS that can go wrong and not let it charge the battery? (even though the screen shows the lightning bolt in the battery icon). I've gotten a battery monitor widget installed from Wifi. Other than that nothing has been installed whatsoever, it's FDR wiped, cleared cache, and the only other thing I've done is surfed the web a few times to verify connectivity after each FDR.
Or do I have a hardware problem? I've used different AC and USB cords, wiggled them a little bit in the port on the phone - it doesn't do anything and it's all the same - it just won't charge.
Or do I need to charge the battery externally somehow to some decent level and then throw it in the phone? Is there anything I can try to do from the basic OS or an app I can try to revive a battery (I have two) and get it to at least charge the battery fully just once so I can mess with it for more than a few minutes at a time?
Click to expand...
Click to collapse
Broken USB port? Flash a 2.2 rom like horse and format data. First try calibration m calibrate battery from play store
Sent from my U8800pro using xda premium
Somcom3X said:
Broken USB port? Flash a 2.2 rom like horse and format data. First try calibration m calibrate battery from play store
Sent from my U8800pro using xda premium
Click to expand...
Click to collapse
I don't think the USB port itself is broken, since I don't lose/gain/drop any charge or data transfer by wiggling various cables that I've used.
When plugged into a computer via USB, I can see all the drives on the device fine, including the removable microSD card and I can access files on the microSD card just like any other USB device.
I measured the voltage at the - and + battery terminals on the phone,obviously without the battery installed, I get 0.60 VDC on USB and 0.81 VDC when plugged into several known-good wall chargers (including the OEM Huawei wall charger which says it's a 1 amp charger, and another generic microUSB wall charger which is labeled 650 mA).
So, I can't see how that would charge a 3.7 volt battery - it actually would be draining the battery like a vampire. This is why I think there's something wrong between the USB port and those battery terminals. But I just don't know if it's wiring/board stuff, or the stock Froyo somehow.
I also measured the two batteries I have.... one is at 2.97 VDC and the other at 3.06 VDC, so I assume those are flat dead basically. Both of them are basically brand new. The original battery was an AT&T replacement that my wife got just before she just bought an iphone instead, got sick of this thing.
I will try to get a battery calibration app when I get it back on wifi, it basically only works after I do an FDR and then put a battery in after having it already plugged into USB (otherwise, I get wifi "error"). But I'm really thinking I'm going to have to just disassemble this thing and see if anything is burned/broken/etc. Or does someone just want it on the cheap??
jp233 said:
I don't think the USB port itself is broken, since I don't lose/gain/drop any charge or data transfer by wiggling various cables that I've used.
When plugged into a computer via USB, I can see all the drives on the device fine, including the removable microSD card and I can access files on the microSD card just like any other USB device.
I measured the voltage at the - and + battery terminals on the phone,obviously without the battery installed, I get 0.60 VDC on USB and 0.81 VDC when plugged into several known-good wall chargers (including the OEM Huawei wall charger which says it's a 1 amp charger, and another generic microUSB wall charger which is labeled 650 mA).
So, I can't see how that would charge a 3.7 volt battery - it actually would be draining the battery like a vampire. This is why I think there's something wrong between the USB port and those battery terminals. But I just don't know if it's wiring/board stuff, or the stock Froyo somehow.
I also measured the two batteries I have.... one is at 2.97 VDC and the other at 3.06 VDC, so I assume those are flat dead basically. Both of them are basically brand new. The original battery was an AT&T replacement that my wife got just before she just bought an iphone instead, got sick of this thing.
I will try to get a battery calibration app when I get it back on wifi, it basically only works after I do an FDR and then put a battery in after having it already plugged into USB (otherwise, I get wifi "error"). But I'm really thinking I'm going to have to just disassemble this thing and see if anything is burned/broken/etc. Or does someone just want it on the cheap??
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What model? Maybe it is for a specific model.
Sent from my U8800pro using xda premium
tPersof folution
This device is a U8800-51
All I want is to get the battery working OK so I can keep it around the house as a wifi/camera/music device and so one day I can hopefully use it as a learning tool for my kid...
jp233 said:
This device is a U8800-51
All I want is to get the battery working OK so I can keep it around the house as a wifi/camera/music device and so one day I can hopefully use it as a learning tool for my kid...
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Click to collapse
Hmmm. Wipe battery stats in cwm. It must be rooted tho via super one click
Sent from my U8800pro using xda premium
Somcom3X said:
Hmmm. Wipe battery stats in cwm. It must be rooted tho via super one click
Sent from my U8800pro using xda premium
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OK, so I bought an external wall charger that charges the battery separately from the phone (and it came with yet again another battery for $7). So I have now 3 good, full batteries.
I rooted it via SuperOneClick, and installed CWM, all thanks to the root guide here on XDA. (thanks!) Everything went fine and the device appeared to function correctly, although as I was doing all this, and setting the phone back up, the battery would go from 75-60-55-50-45-40% in a matter of minutes.
But once I got it done and rooted, I went and got the battery calibration app. Put in a fresh battery at 100& and wiped the stats (I've now done this several times). The battery definitely lasts a good bit longer, but still drops pretty quickly so I will try to find some new ROMs here shortly.
The only thing that is still very strange, is that if I shut the screen off or if it goes off on its own, it will not wake up.... I have to pull the battery and it works fine on reboot. Any ideas?

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