Develop Bugs

what does mean a very fast flashing red led

hey guys i just bought a new battery for my jasjar, the phone isnt booting even if the charger is plugged in, it only boot for like 6 seconds before it turn off again, even if i charged the new battery for 10 hours, even there is no orange led tell that the battery is charging... i plugged the phone into the USB cable with the pc and a fast flashing red light comes from the led (like 3 flashes per second) so what is the problem? is the new battery damaged or what? please help

djgaby said:
hey guys i just bought a new battery for my jasjar, the phone isnt booting even if the charger is plugged in, it only boot for like 6 seconds before it turn off again, even if i charged the new battery for 10 hours, even there is no orange led tell that the battery is charging... i plugged the phone into the USB cable with the pc and a fast flashing red light comes from the led (like 3 flashes per second) so what is the problem? is the new battery damaged or what? please help
Click to expand...
Click to collapse
In all probability you have received a deffective battery. Please obtain a replacement or refund.

djgaby said:
hey guys i just bought a new battery for my jasjar, the phone isnt booting even if the charger is plugged in, it only boot for like 6 seconds before it turn off again, even if i charged the new battery for 10 hours, even there is no orange led tell that the battery is charging... i plugged the phone into the USB cable with the pc and a fast flashing red light comes from the led (like 3 flashes per second) so what is the problem? is the new battery damaged or what? please help
Click to expand...
Click to collapse
red light means extremely low batt.....guess your battery is faulty

i got the same thing.
and no it's not the battery.
it's the charging circuit on the main hardware isn't working.
open your phone and check the five small wires that they connect the mini usb to the main mother board, one of them must be cut.

Ninlour said:
i got the same thing.
and no it's not the battery.
it's the charging circuit on the main hardware isn't working.
open your phone and check the five small wires that they connect the mini usb to the main mother board, one of them must be cut.
Click to expand...
Click to collapse
so, is there a solution to this? or there really is nothing more for the device but the trash bin or for spare parts?

Have you tried this?
http://wiki.xda-developers.com/index.php?pagename=UniversalBatteryIssue
If you already replaced the battery and nothing, and you want to get rid of dear Uni place it for sell in parts on marketplace, a lot of people will go for it!

djgaby said:
hey guys i just bought a new battery for my jasjar, the phone isnt booting even if the charger is plugged in, it only boot for like 6 seconds before it turn off again, even if i charged the new battery for 10 hours, even there is no orange led tell that the battery is charging... i plugged the phone into the USB cable with the pc and a fast flashing red light comes from the led (like 3 flashes per second) so what is the problem? is the new battery damaged or what? please help
Click to expand...
Click to collapse
I had exactly the same thing with my old battery,after my try to discharge it with a lil electro-motor. then i found a post of a guy with the same thing,who fixed it-by "zapping" the UNI battery with a 9V battery,connecting + to + and - to -,for a few second. I tried it without thinking twice. It worked for me. Dunno how and why,but it did. I use the battery again,normal. But beware,it is dangerous to play with this type of battery,it can explode. Do a search on this subject and you will see

I agree with keeping_sg
how long have you left your uni on the charger?
just plug it in and leave it on the charger all night and see what happens.

I bought yesterday a 4800mAh battery from Hong Kong... 10 euros included shipping + FREE black back cover

Good battery life but still prefer to carry 2 original sized batts rather than get that big one, making even bigger our Uni
Respectfully,

Yes, that absolutely means your battery is dead. Try charging for a few more hours and then turn on your PocketPC. If the error persists, try changing the battery.
Regards,
Carty..

Yes, that absolutely means your battery is dead. Try charging for a few more hours and then turn on your PocketPC. If the error persists, try changing the battery.
Regards,
Carty..

[Q] A100 Powers OFF when charger is connected.

Recently successfully replaced the LCD screen on my Acer A100. Device worked fine for some time after that repair. Wanting to get a secondary charger for use at work I went to radio shack. Sales "tech" tried several different adapters, found one that fit inside he port, but wiggled. She plugged it in but device wasn't showing a charge. Decided to order one from online. At home the device still would not charge with its own charger. Thought maybe the charger was faulty. Ordered two more. Still the A100 turned off when charger plugged in. Figured tech had burned out the a/c port. Ordered and installed a new one. Still A100 turns off immediately when charger is plugged in. I have 3 chargers now - same results with all 3. Have now ordered a docking station to utilize (hopefully) charging ability through 40 pin connector.
If this connection creates same shut down am I looking at a battery replacement? AM sitting at 33% battery level now, device shut down completely.
Acer wants 199.00 prepaid to submit to them for repair - this is more than I paid for the device! Not really an expense I am willing to pay if all it needs is a battery. There is no erratic behavior , just immediate shutdown as soon as a charger is connected. Any ideas?

PocketFuzz said:
Recently successfully replaced the LCD screen on my Acer A100. Device worked fine for some time after that repair. Wanting to get a secondary charger for use at work I went to radio shack. Sales "tech" tried several different adapters, found one that fit inside he port, but wiggled. She plugged it in but device wasn't showing a charge. Decided to order one from online. At home the device still would not charge with its own charger. Thought maybe the charger was faulty. Ordered two more. Still the A100 turned off when charger plugged in. Figured tech had burned out the a/c port. Ordered and installed a new one. Still A100 turns off immediately when charger is plugged in. I have 3 chargers now - same results with all 3. Have now ordered a docking station to utilize (hopefully) charging ability through 40 pin connector.
If this connection creates same shut down am I looking at a battery replacement? AM sitting at 33% battery level now, device shut down completely.
Acer wants 199.00 prepaid to submit to them for repair - this is more than I paid for the device! Not really an expense I am willing to pay if all it needs is a battery. There is no erratic behavior , just immediate shutdown as soon as a charger is connected. Any ideas?
Click to expand...
Click to collapse
If its doing it on 3 chargers its sounding more like a board charging circuit issue. You could remove the battery and then see if it behaves normally, that'll be battery or board right there. Or if you have a multi meter test output at the battery connector.
Tapatalked from my HTC DNA - ReVolt

Tried connection without battery
pio_masaki said:
If its doing it on 3 chargers its sounding more like a board charging circuit issue. You could remove the battery and then see if it behaves normally, that'll be battery or board right there. Or if you have a multi meter test output at the battery connector.
Tapatalked from my HTC DNA - ReVolt
Click to expand...
Click to collapse
Don't have a multi meter. Tried connection via new docking station, got same response: device immediately shut off. Tried your suggestion, disconnected battery connected to docking station, got immediate shut off. Same with charger via a/c port. :crying: Mainboard is out? But Device responds and acts normal when in battery mode - or is this isolated to the charging circuit part of the main board?
Thanks for the suggestion!

PocketFuzz said:
Don't have a multi meter. Tried connection via new docking station, got same response: device immediately shut off. Tried your suggestion, disconnected battery connected to docking station, got immediate shut off. Same with charger via a/c port. :crying: Mainboard is out? But Device responds and acts normal when in battery mode - or is this isolated to the charging circuit part of the main board?
Thanks for the suggestion!
Click to expand...
Click to collapse
Sounds like its tripping on the charger circuit and cutting out, like a breaker tripping. IMO look carefully for any shorts on the boards, even something stupid like dog hair can cause strange things to happen. A good blasting with air wouldn't hurt either. It could even be the dock port as it does charge from there and is subject to debris also.
Tapatalked from my HTC DNA - ReVolt

one more try
pio_masaki said:
Sounds like its tripping on the charger circuit and cutting out, like a breaker tripping. IMO look carefully for any shorts on the boards, even something stupid like dog hair can cause strange things to happen. A good blasting with air wouldn't hurt either. It could even be the dock port as it does charge from there and is subject to debris also.
Tapatalked from my HTC DNA - ReVolt
Click to expand...
Click to collapse
Thanks again for more suggestions. Yup I have been over the board and all connections with a looking glass. Changed out the A/C dock port. My suspicion is that when the Radio Shack tech powered up the "Almost fits" adapter it blew whatever breaker the board has.
When I had it connected to the docking station with the battery disconnected, it powered on, then immediately shut off. So this definitely sounds like a "blown fuse". I completely disassembled and reassembled it again (except for the LCD screen) and checked all connections and plugs. Nothing visible to indicate a burnout or cross connection.
No odd smells either. Probably some teensy weensy transistor or resistor or something. I am not an electrician - just good at R & R.
Another visit to ebay and I am parting with 50 bucks for a "factory refurbished" motherboard. In the mean time, my beloved tablet will await further surgery. Will keep you posted. Board should be here by Saturday. I hope so - battery is down to 27%. Thanks again for weighing in!

PocketFuzz said:
Thanks again for more suggestions. Yup I have been over the board and all connections with a looking glass. Changed out the A/C dock port. My suspicion is that when the Radio Shack tech powered up the "Almost fits" adapter it blew whatever breaker the board has.
When I had it connected to the docking station with the battery disconnected, it powered on, then immediately shut off. So this definitely sounds like a "blown fuse". I completely disassembled and reassembled it again (except for the LCD screen) and checked all connections and plugs. Nothing visible to indicate a burnout or cross connection.
No odd smells either. Probably some teensy weensy transistor or resistor or something. I am not an electrician - just good at R & R.
Another visit to ebay and I am parting with 50 bucks for a "factory refurbished" motherboard. In the mean time, my beloved tablet will await further surgery. Will keep you posted. Board should be here by Saturday. I hope so - battery is down to 27%. Thanks again for weighing in!
Click to expand...
Click to collapse
To bad considering the crappy battery life so its not like you can charge some other way and swap the battery around.
Example, I have a bricked unit that charges but doesn't otherwise work, so I mean using my bricked board to charge it and the non charge board for use. The a100 isn't really a good setup for swapping around lol. I may actually be interested in that board now that I think about it...
Tapatalked from my HTC DNA - ReVolt

hmmm an idea for the brave
pio_masaki said:
To bad considering the crappy battery life so its not like you can charge some other way and swap the battery around.
Example, I have a bricked unit that charges but doesn't otherwise work, so I mean using my bricked board to charge it and the non charge board for use. The a100 isn't really a good setup for swapping around lol. I may actually be interested in that board now that I think about it...
Tapatalked from my HTC DNA - ReVolt
Click to expand...
Click to collapse
If I could figure out a way to charge the battery OTHER than through the board - I would! Which got me to thinking. One COULD get a second rear panel, cut a door in it, install teensy weensy hinges or create a hinge with cloth tape. then make some sort of extension cord for the battery charging cord, plug it in to the "external" charging board and refill the battery that way.
With a working board and the right know how, one could just extract the board, put it in a box and make a charger out of it too.
But that is just my brain rattling around ideas. :silly: Hopefully this new "refurbished" mother board will do the trick and I will learn my lesson and NEVER let a sales "tech" attempt trial adapters! at 10 minutes to 9pm tonight it was in Texas....
Until I CANNOT use it, I didn't realize how MUCH I used this little tablet!

now it blinks orange?
Oh fer cryin out loud! The motherboard has arrived, I have installed it. Can plug n the charger and drop it onto the docking station and now I get the same response for both charging options: Charge LED lights up orange solid for just about 60 seconds, then begins blinking. Device doesn't respond when power button is pushed UNLESS it is plugged in, and then it just sits at the "ACER" screen.led changes to blue.
OK, wait a minute, this is the third time I have turned it on while plugged in. Acer screen has moved to Android, Device has started. Battery icon showing a question mark. 23%
Turned off, turned back on, now battery shows only 3%????
Think I saw something on the forums about that. will go on a quest.

Finally charging again!
Shhh, don't want to disturb my device....
Found folks on other forums with similar issues of the Acer A100 tablet showing only 3% charge. I removed and inserted the charging pin several times, the device would show solid orange led for about one minute then start blinking. Turned the device on when charger plugged in, unlocked the screen, then with device still plugged in I shut it down completely. Removed charger. Plugged it back in and so far the led is staying at solid orange.
Please keep your fingers crossed for me! This has been quite the roller coaster ride of discovery. Will leave it be for overnight (what is left of the overnight). Then peek at it in the morning. With any luck at all it will have accepted a full charge and I will be greeted with a functioning device! I almost want to learn a new trade..
well now that is weird, got up this morning to a nice blue charge indicator. Yay! Unplugged charger, press on button, hold, hold, hold, hold, hold and device does not start up. Dang it! Plugged it back in, led went solid orange, then started blinking again! Pressed and held on button. Device came on. battery meter shows 3% and a question mark! HUH?
have device plugged in, settings of course show android version 3.2.1 for this motherboard. Guess I need to upgrade it to ICS maybe that will resolve this weird battery issue? Hope soemone here has ideas, feels like I am soooo close to resolving this.

I read the upper posts.
Now I want to share my experience regarding battery load sharing:
I have allso problems to charge the battery.
I have on my tab, for example, 40% of battery power.
I turn my tab off.
When i plugged the charging cable in it shows me the orange led for load.
After two hours or more i turned the tab on.
It shows me not more than 40% but only 37% or so.
So not loaded. This was a bad sign....
I dont no was happend.
I get a little bit nervous but when the tab not get power it doesnt work....
After two/three hours the battery was empty.
Now i can only start my tab while plugged the charging cabel in because the battery will not load.
I have tried several options to find a solution (disconnect the battery, install a new battery, etc. ....).
My solution was fairly straightforward:
I open the tab. Look where the power comes in.
Of the charging socket go four (two red and two black) cable to the motherboard and from the motherboard it goes seven (two red, two black and for me not so important three other coloured cabels) to the battery.
I organized four thin wire and soldered it from the charging socket directly to the battery (of course red to red black to black ).
The result:
When i plugged the charging cabel in while android is running i get no information to load and it shows me not to.
But when i turned the tab off and on again it shows me that it has the battery charged :fingers-crossed: .
After on night while the charger plugged in the battery is fully loaded!!
And of course i get the information in android the discharging of the battery but this is an normaly thing!
So, the problem to load the battery for me is solved .
I hope it helps a little bit for everyone!

frischeis said:
I read the upper posts.
Now I want to share my experience regarding battery load sharing:
I have allso problems to charge the battery.
I have on my tab, for example, 40% of battery power.
I turn my tab off.
When i plugged the charging cable in it shows me the orange led for load.
After two hours or more i turned the tab on.
It shows me not more than 40% but only 37% or so.
So not loaded. This was a bad sign....
I dont no was happend.
I get a little bit nervous but when the tab not get power it doesnt work....
After two/three hours the battery was empty.
Now i can only start my tab while plugged the charging cabel in because the battery will not load.
I have tried several options to find a solution (disconnect the battery, install a new battery, etc. ....).
My solution was fairly straightforward:
I open the tab. Look where the power comes in.
Of the charging socket go four (two red and two black) cable to the motherboard and from the motherboard it goes seven (two red, two black and for me not so important three other coloured cabels) to the battery.
I organized four thin wire and soldered it from the charging socket directly to the battery (of course red to red black to black ).
The result:
When i plugged the charging cabel in while android is running i get no information to load and it shows me not to.
But when i turned the tab off and on again it shows me that it has the battery charged :fingers-crossed: .
After on night while the charger plugged in the battery is fully loaded!!
And of course i get the information in android the discharging of the battery but this is an normaly thing!
So, the problem to load the battery for me is solved .
I hope it helps a little bit for everyone!
Click to expand...
Click to collapse
I really hope other isn't any voltage or amperage changes needed of that can blow that battery up real quick, plus it can't stop charging, you'll need to monitor that yourself.
Thanks for the info though, it does appear to be yet another somewhat common bug these have that can be addressed by a user if they feel the need to.
Tapatalked from my HTC DNA - ReVolt

Not switch the charger off when the battery is full?
I think the charger there is a shutdown would otherwise overload the battery, right?
Or do this the motherboard?
Anyway, for me the tab is fully working now and if the battery is broken, it is not a big expense to replace them .

frischeis said:
Not switch the charger off when the battery is full?
I think the charger there is a shutdown would otherwise overload the battery, right?
Or do this the motherboard?
Anyway, for me the tab is fully working now and if the battery is broken, it is not a big expense to replace them .
Click to expand...
Click to collapse
I was saying the board is in charge of cutting the battery charge off, not the charger itself so maybe keep an eye on it, its a good way for an explosion or fire.
Tapatalked from my HTC DNA - ReVolt

A100 tablet not charging still
Frischies is much braver than I am.
Wiring the battery direct to the charging port- I would definitely worry about burning up the battery or causing a fire - especially while charging when I sleep. I have had more than my fair share of run ins with fire.
The Motherboard I ordered arrived and I installed it. It was listed as "factory refurbished", but unfortunately will not accept a charge. I thought it had charged overnight at one point, but all it does is blink orange and the battery reads 3% or 0%. Turning the device off when plugged in and doing a reset has not helped. The vendor has been gracious to do a replacement, so I will follow that route until I get a working motherboard.
I have discovered that the docking station will be a welcome addition to my Acer tablet paraphernalia! Although this model docking station isn't the one that allows HDMI throughput, it still will be nice for music, and other media. A Bluetooth keyboard and the tablet will offer yet another computer tool!
First things first though, get the tablet to accept a charge - until then it is a really wide flat paper weight! I am getting VERY adept at opening the tablet and removing the internals!

It is working again! The motherboard sent was defective but vendor issued an RMA. Received the replacement yesterday, installed it last night. Charged over night and fully functional this morning! Ahhh it feels good to have my little buddy back again. Didn't realize how much I used it, until I couldn't use it! Thanks to all for the help.
Sent from my A100 using xda app-developers app

charging issue

hi, i hav been facing charging prob, my does not charge whn its remain on rather drains batt more quick but it was charging whn i turn it off but slow. i thought its the issue of sense 5 so i degrade to sense 4+ viper 3.8 but it got worse. idrained my batt and than put to wall charge for whole night but the charging led kept blinking and than it disappeared than again i unpluged and plug the cable to phn than it starts blinking and than again blinking of led disappeared. i thought it will take time to become stable so i left it charge for whole night. in the morning led was disappeared and i tried to turning phn on but it did not respond. than i plug it to pc and it started blinking without disappearing of led. i left it for the whole day to charge but the led didnt turned to green due curiosity i turned phn on and batt lvl showed 20% ......so plzz any 1 tell me wht can be the solution of the problem plzzzzzzzz:crying::crying::crying:

You probably have a dead battery...Someone who has seen this problem before could confirm.
The way you write is pretty hard to read, so you might wait a while until someone does confirm this .

1. Never charge the phone for the whole night.
2. I had the same problem. I changed my charger and now, it is perfectly charging. Try it.

Anish Shah said:
1. Never charge the phone for the whole night.
2. I had the same problem. I changed my charger and now, it is perfectly charging. Try it.
Click to expand...
Click to collapse
thanx for suggestion, how much do i hav to pay for a new charger??

But you said you left it to charge via USB cable on your PC and it didn't charge properly. If you used the same USB cable with the charger, then the cable might be to blame. You should try a friends cable before buying a new charger.
If the charger does not work with the same USB cable you used to connect to the PC, your battery is most probably dead.

Anish Shah said:
1. Never charge the phone for the whole night.
2. I had the same problem. I changed my charger and now, it is perfectly charging. Try it.
Click to expand...
Click to collapse
Charging all night isn't an issue.
The battery will charge to 100% then drop to 95% and back up, will cause no damage.
Also smaller and often charges are better for the battery as it slows the formation of crystals so the battery holds its capacity longer.
Sent from my HTC One X using xda app-developers app

unikulkiss said:
But you said you left it to charge via USB cable on your PC and it didn't charge properly. If you used the same USB cable with the charger, then the cable might be to blame. You should try a friends cable before buying a new charger.
If the charger does not work with the same USB cable you used to connect to the PC, your battery is most probably dead.
Click to expand...
Click to collapse
using different cable phn is getting charge but the charging speed is very slow, in 6 hrs it has charged only 64% and dont know wht to blame batt or charger???

solidsnakecod4 said:
using different cable phn is getting charge but the charging speed is very slow, in 6 hrs it has charged only 64% and dont know wht to blame batt or charger???
Click to expand...
Click to collapse
If you have used 2 different cables to charge and none worked properly, that is probably too big of a coincidence. Your phone has something broken; it's either the battery or the charging circuit in the phone. You should take it to a specialized phone service to see what's wrong. They will also try charging it before disassembling, and if there's nothing wrong with the phone, they probably won't even charge you anything.
If indeed they have to disassemble it, you should ask them if there will be any visible differences once they assemble is back. I had a cracked digitizer on my old One X and took it to service and replaced the display+digitizer(they come together) and, although the screen was new, it did not fit as snugly as before, so you could see light leaking out the side margins of the display.
They probably had many of these phones under repair and should know if this will be the case with your phone.

unikulkiss said:
If you have used 2 different cables to charge and none worked properly, that is probably too big of a coincidence. Your phone has something broken; it's either the battery or the charging circuit in the phone. You should take it to a specialized phone service to see what's wrong. They will also try charging it before disassembling, and if there's nothing wrong with the phone, they probably won't even charge you anything.
If indeed they have to disassemble it, you should ask them if there will be any visible differences once they assemble is back. I had a cracked digitizer on my old One X and took it to service and replaced the display+digitizer(they come together) and, although the screen was new, it did not fit as snugly as before, so you could see light leaking out the side margins of the display.
They probably had many of these phones under repair and should know if this will be the case with your phone.
Click to expand...
Click to collapse
thnx bro, my phn is fully charged now but ill be visiting service center..

You can use/try every USB charger and cable you have in your house, I also charge my HOX with my iPad charger (only different cable ) no porblem at all. And it's no problem to charge your phone the whole night.

Despite replacing USB power board & Sim/Microsd holder still cannot get charge

Hi guys
Just cannot seem to get the thing to charge.
Tried different charger/usb cable. Got completely new USB power board. Sometimes the battery icon comes up on the screen when i turn it on of just a battery with a bit of low red at the bottom of it. It won't turn on. Theres not even a charging beacon light on top of the phone to indicate charge.
What does this usually show? Bricked phone, bad motherboard or bad battery?
Cheers.

MartK87 said:
Hi guys
Just cannot seem to get the thing to charge.
Tried different charger/usb cable. Got completely new USB power board. Sometimes the battery icon comes up on the screen when i turn it on of just a battery with a bit of low red at the bottom of it. It won't turn on. Theres not even a charging beacon light on top of the phone to indicate charge.
What does this usually show? Bricked phone, bad motherboard or bad battery?
Cheers.
Click to expand...
Click to collapse
Is the error that comes to screen
"USB not supported"?

not getting any error mate. It is totally dead.
I did buy a new battery which had 4% life left. Not enough to copy 64GB data to an SD card.
It seems it must be the main board which is damaged. I have replaced the power board and the middle ribbon cable. This has to be a mobo issue unless u can think of anything else?

MartK87 said:
not getting any error mate. It is totally dead.
I did buy a new battery which had 4% life left. Not enough to copy 64GB data to an SD card.
It seems it must be the main board which is damaged. I have replaced the power board and the middle ribbon cable. This has to be a mobo issue unless u can think of anything else?
Click to expand...
Click to collapse
I still don't think that's mobo issue. Try this before you intend to replace your mobo.
Plug in charging using any charger other than wall charger. Use a power bank or anything and when the battery icon shows up that you described in first post(the red icon) leave it there as it is and let it charge over night. Try powering up in the morning.

sbetatester said:
I still don't think that's mobo issue. Try this before you intend to replace your mobo.
Plug in charging using any charger other than wall charger. Use a power bank or anything and when the battery icon shows up that you described in first post(the red icon) leave it there as it is and let it charge over night. Try powering up in the morning.
Click to expand...
Click to collapse
I will be sure to do that and let you know once done thanks
I dont get any icon on the screen when I plug a charger in. Even the powerbank... When i plug that in I get no beacon light on the top of the phone to indicate charge and also no icon on the phone screen. The phone never gets hot when it charges and the charging device never gets hot. Stone cold both of them.
What do you reckon?

MartK87 said:
I will be sure to do that and let you know once done thanks
I dont get any icon on the screen when I plug a charger in. Even the powerbank... When i plug that in I get no beacon light on the top of the phone to indicate charge and also no icon on the phone screen. The phone never gets hot when it charges and the charging device never gets hot. Stone cold both of them.
What do you reckon?
Click to expand...
Click to collapse
I think your phone needs a doctor ?. Take him to the hospital (service center). Last resort before going to service center is take the battery out and charge it using one of those battery charger.

sbetatester said:
I think your phone needs a doctor . Take him to the hospital (service center). Last resort before going to service center is take the battery out and charge it using one of those battery charger.
Click to expand...
Click to collapse
haha yes...
The annoyance is though its not the normal kind of battery you come across...
Take a look here: https://i.ebayimg.com/images/g/ScMAAOSwVm5Y-v50/s-l300.jpg
It has a strange connector on it. one of which I have never seen before.
How do i find service centres located in Australia?
Many thanks again

MartK87 said:
haha yes...
The annoyance is though its not the normal kind of battery you come across...
Take a look here: https://i.ebayimg.com/images/g/ScMAAOSwVm5Y-v50/s-l300.jpg
It has a strange connector on it. one of which I have never seen before.?
Click to expand...
Click to collapse
Yes, its strange indeed however my battery charger is one with wires so i don't need to worry about connectors.
MartK87 said:
How do i find service centres located in Australia
Many thanks again
Click to expand...
Click to collapse
https://www.asus.com/au/support/Service-Center/Australia
I think this url might help if you haven't tried it yet. :good:

[SOLVED][Hardware Issue] Phone not charging

JUMP TO SOLUTION
Hi everyone,
My phone (almost 2 years old, changed LCD for three times) started to lose a lot of its battery capacity from a month ago, and since yesterday I realized something's wrong with it, as it had some trouble charging the battery. At first, I was using my phone and its battery was around 20%, and then as soon as I connected the charger (genuine fast charge) it turned off and the red LED indicator kept turning on and off and refused to charge. then after a reboot, it started charging again, and then I left it charging at the night and at the morning I realized it only charged to 60% and the red LED didn't turn on at all. And now that all the battery is drowned out it's not charging at all and drawing no current from the charger ([email protected]).
Has anyone had any experience with it before? Is this a battery problem or the USB charging port flex cable which has some ICs on it (example)?
I'd appreciate your answers.

I can't tell from your story that you tried another charger ? I recall a similar charging issue from my HTC One X a few years back.
Replaced the charger and all issues disappeared.

Mr Hofs said:
I can't tell from your story that you tried another charger ? I recall a similar charging issue from my HTC One X a few years back.
Replaced the charger and all issues disappeared.
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Yes I have, Also seconds before it ran out completely I tried to check if adb works. connected it to my laptop and on the bootloader mode the adb recognized the device but the red LED didn't light up.

m.m.m said:
Yes I have, Also seconds before it ran out completely I tried to check if adb works. connected it to my laptop and on the bootloader mode the adb recognized the device but the red LED didn't light up.
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That's correct because a device doesn't charge in bootloader mode. Only off state, running OS or Dr TWRP recovery.
If you tried a different charger it can be pretty much only down to hardware, can't give any advice at that level.

Mr Hofs said:
That's correct because a device doesn't charge in bootloader mode. Only off state, running OS or Dr TWRP recovery.
If you tried a different charger it can be pretty much only down to hardware, can't give any advice at that level.
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Oops, I meant recovery mode.
does the device charge in the stock recovery?

m.m.m said:
Oops, I meant recovery mode.
does the device charge in the stock recovery?
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I'm afraid not, only the custom one.

I had almost the same problem with my phone. I sent it to a repair center and acording to their report, the circuit which is responsible for the monitoring of the charging process had a loose connection. Maybe because I dropped the phone a few times. Unfortunatly the circuits of modern phones are all on the same circuit board, so they had to change the whole motherboard of the phone. But now everything works fine.

So I just opened the phone and disconnect/reconnected the battery connector and it eventually started charging with the stock charger, but it charged up to 60% and then stopped. retried the same steps and no luck this time. then I tried charging the battery with an external li-ion charger (I know it's a dangerous task )
this time it charged up to 4.11 volts and then I turned on the phone and again the battery dropped to 60%. so I believe the battery is really dead and needs replacement. I'll update you when I replace it.

KingGong said:
I had almost the same problem with my phone. I sent it to a repair center and acording to their report, the circuit which is responsible for the monitoring of the charging process had a loose connection. Maybe because I dropped the phone a few times. Unfortunatly the circuits of modern phones are all on the same circuit board, so they had to change the whole motherboard of the phone. But now everything works fine.
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Click to collapse
Turns out I was wrong, my case was similar to yours. had to waste $9 on a battery to find out
it just fixed by disconnecting/reconnecting the USB connector bottom of the board, but I don't know how the flex cable for the back button got cut so now I have to replace the whole bottom circuit ($17 approx.) :crying:

m.m.m said:
Turns out I was wrong, my case was similar to yours. had to waste $9 on a battery to find out
it just fixed by disconnecting/reconnecting the USB connector bottom of the board, but I don't know how the flex cable for the back button got cut so now I have to replace the whole bottom circuit ($17 approx.) :crying:
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Click to collapse
So I went through the hurdle of replacing my battery and charge port, and the battery transplant went well, went from 70% to 100% battery health (yay!).
The first charge port I purchased (this is all eBay stuff) had a busted Recents button (copper trace in ribbon cable was nicked - when the part was removed from original phone for sure), so I complained and got a replacement; second one works well.
And because all bad things come in threes, the phone developed an echo (on the opposite side of the conversation) which I think I caused by ripping a bit of the mic rubber isolator which points towards the mic hole in the battery cover.
I believe I fixed it (still testing) by glueing some foam padding on the backside of the mic (on the charge port PCB, facing the battery cover).
Long story short, opening up the phone is a b###h, so do multiple repairs together, be careful not to break anything else (easier said....).
Good luck, let us know how it went.

So here's an update, First of all, I'm pretty happy with the battery replacement, It can hold like 10 hours of my usage while the old one could handle up to 6-8 lately, it's unbranded, and I got it from a local phone part store.
Second, the replacement for the charger flex turned out to be pretty good quality, and I've had no problems with it so far. I got it for $11 from AliExpress, but now it's about $10.5. But when I replaced everything and tried to reassemble the phone and tighten the screws it showed up with charging problems again, and I tried disassemble/reassembling the phone and reconnecting the charger flex, and the next time it charged but with no fast charge, so in the next try I also tried cleaning the flex connector with cleaning alcohol, and for the third try it finally started charging with no problems.
So now after like 2 weeks, it's had no problems so far.