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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
Ok so a little of background story, if you don't care about it just skip to the next paragraph. I bought my T989 over the internet, it was working perfectly. I wanted to make the most of it, rooted it and tried Swapper 2, which hard bricked my phone. I'm not new to rooting, I've rooted some phones now, but I had never tried swapper, I liked the idea of unoccuping some RAM memory. Apparently I did something to my boot sequence thing and my phone was dead. I still had waranty on the phone (one week left when that happened so it is suspicious to anyone) so I called. After one hour of arguing over the phone and trying to convince them it wasn't my fault, which of course I knew it was, they decided to send me a new one... ahem "new" one.
Ok so here's where the priblem start. My "new" phone was working alright untill it stopped charging, didn't work AT ALL. I took a peek and one of the pins on my phone was bent, it was upwarda and as I tried to get it back to its place it fell off. I took my phone to get the MicroUSB replaced andsure enough they did.
My phone was charging again correctly. It was doing great untill it stated to charge slower and slower. It got to the point where it just shows as charging, but doesn't charge at all.
I've tried everything, I bought a new original Samsung battery, still same issue. I downloaded an app to tell me the amps the cellphone was pulling and it shows 350-450 when I have read it needs minimum 600. I have tried custom roms, kernels and nope, still pulling 400, tried LG chargers, Motorola chargers, a SAMSUNG S3 charger and still no luck. The thing they all have in common is that they're USB chargers so I read if the cellphone detects it as such it would give me a hard time.I've tried making a fast charge USB cable with a video on Youtube but it still only charges 400 mAmps. I've installed custom kernels with the "USB fast charge" and STILL no luck.
The ONLY thing I haven't tried is using and ORIGINAL, Samsung wall charger but at this point, I think it won't fix my problem because of the fact that I remember it worked well in the beggining. I am currently charging both batteries with a Universal Battery charger, but I've read that they wear out batteries throughout time.
So, is there another thing I haven't tried... or is my cellphone doomed now? I believe that it's the phone, as in the mother board if I can call it that, or does anybody have another theory?
Thanks for your time, would love to see anyone suggest
ShaDisNX255 said:
Ok so a little of background story, if you don't care about it just skip to the next paragraph. I bought my T989 over the internet, it was working perfectly. I wanted to make the most of it, rooted it and tried Swapper 2, which hard bricked my phone. I'm not new to rooting, I've rooted some phones now, but I had never tried swapper, I liked the idea of unoccuping some RAM memory. Apparently I did something to my boot sequence thing and my phone was dead. I still had waranty on the phone (one week left when that happened so it is suspicious to anyone) so I called. After one hour of arguing over the phone and trying to convince them it wasn't my fault, which of course I knew it was, they decided to send me a new one... ahem "new" one.
Ok so here's where the priblem start. My "new" phone was working alright untill it stopped charging, didn't work AT ALL. I took a peek and one of the pins on my phone was bent, it was upwarda and as I tried to get it back to its place it fell off. I took my phone to get the MicroUSB replaced andsure enough they did.
My phone was charging again correctly. It was doing great untill it stated to charge slower and slower. It got to the point where it just shows as charging, but doesn't charge at all.
I've tried everything, I bought a new original Samsung battery, still same issue. I downloaded an app to tell me the amps the cellphone was pulling and it shows 350-450 when I have read it needs minimum 600. I have tried custom roms, kernels and nope, still pulling 400, tried LG chargers, Motorola chargers, a SAMSUNG S3 charger and still no luck. The thing they all have in common is that they're USB chargers so I read if the cellphone detects it as such it would give me a hard time.I've tried making a fast charge USB cable with a video on Youtube but it still only charges 400 mAmps. I've installed custom kernels with the "USB fast charge" and STILL no luck.
The ONLY thing I haven't tried is using and ORIGINAL, Samsung wall charger but at this point, I think it won't fix my problem because of the fact that I remember it worked well in the beggining. I am currently charging both batteries with a Universal Battery charger, but I've read that they wear out batteries throughout time.
So, is there another thing I haven't tried... or is my cellphone doomed now? I believe that it's the phone, as in the mother board if I can call it that, or does anybody have another theory?
Thanks for your time, would love to see anyone suggest
Click to expand...
Click to collapse
I know this isn't an answer but a general comment. This is a good reason why I will NEVER buy electronics that are used or from a retailer that isn't a big name. I don't care what the seller says there is just really no way to know exactly what you are getting. If you had bought this phone from Amazon (direct) you could have already got another one by now with no arguments. I'd be looking for another phone and call it a loss.
ArtfulDodger said:
I know this isn't an answer but a general comment. This is a good reason why I will NEVER buy electronics that are used or from a retailer that isn't a big name. I don't care what the seller says there is just really no way to know exactly what you are getting. If you had bought this phone from Amazon (direct) you could have already got another one by now with no arguments. I'd be looking for another phone and call it a loss.
Click to expand...
Click to collapse
Thanks dude, I know it really matters on where you buy it, but the price was just so handsome to me. I guess that's what I get and as things like this happen you learn more and more on what you buy and what you decide to do with them. I guess I already consider it as a loss but I'm aware that it's not unusable yet. I guess I will continue to charge both my batteries with the charger, but I was just curious to know what really happened to the phone to avoid things like this in the future
ShaDisNX255 said:
Thanks dude, I know it really matters on where you buy it, but the price was just so handsome to me. I guess that's what I get and as things like this happen you learn more and more on what you buy and what you decide to do with them. I guess I already consider it as a loss but I'm aware that it's not unusable yet. I guess I will continue to charge both my batteries with the charger, but I was just curious to know what really happened to the phone to avoid things like this in the future
Click to expand...
Click to collapse
What apps do you all have installed on your phone and running while you are charging it? Try making a full backup then do a clean install of your ROM (backup just in case this doesn't fix it). After doing this do NOT install any apps, just test charging. If charging works, it is some app on your phone. I know those "battery saving" apps can eat up a lot of battery if configured wrong. And if you have a lot of background apps running, they can eat your battery without you knowing and reduce charging time.
Go into settings->device and check what is eating up your battery there before charging and during charging.
If you don't want to re-install your ROM, try charging your phone with the screen off (no screensaver (daydream) or nothing, just screen off, charging) and in airplane mode. I recommend doing a clean install to see if it is some apps (you can use TB to back everything up, then do the clean install and test from there).
bmg002 said:
What apps do you all have installed on your phone and running while you are charging it? Try making a full backup then do a clean install of your ROM (backup just in case this doesn't fix it). After doing this do NOT install any apps, just test charging. If charging works, it is some app on your phone. I know those "battery saving" apps can eat up a lot of battery if configured wrong. And if you have a lot of background apps running, they can eat your battery without you knowing and reduce charging time.
Go into settings->device and check what is eating up your battery there before charging and during charging.
If you don't want to re-install your ROM, try charging your phone with the screen off (no screensaver (daydream) or nothing, just screen off, charging) and in airplane mode. I recommend doing a clean install to see if it is some apps (you can use TB to back everything up, then do the clean install and test from there).
Click to expand...
Click to collapse
The ROM I currently have has a great battery saving mode, I also have "Advanced Task Killer" to kill any apps. It's the same issue. I want to buy a new charger but I still think that won't fix my problem. I've also charged in Airplane mode and no luck
ShaDisNX255 said:
The ROM I currently have has a great battery saving mode, I also have "Advanced Task Killer" to kill any apps. It's the same issue. I want to buy a new charger but I still think that won't fix my problem. I've also charged in Airplane mode and no luck
Click to expand...
Click to collapse
i would plug it to someone elses charger or buy one, had a ton of them fail-hope that helps
---------- Post added at 11:58 AM ---------- Previous post was at 11:49 AM ----------
Sorry didn't read good, you've already tried other chargers, ignore my ignorance
Sent from my SGH-T989 using xda app-developers app
ShaDisNX255 said:
The ROM I currently have has a great battery saving mode, I also have "Advanced Task Killer" to kill any apps. It's the same issue. I want to buy a new charger but I still think that won't fix my problem. I've also charged in Airplane mode and no luck
Click to expand...
Click to collapse
Can you go into settings->Battery and post a screenshot of it? I'm curious as to what is eating up most of your battery.
After, I would still try doing a nandroid and flash your rom cleanly and install 0 apps and try charging on this clean install. I know my friend ended up getting some battery optimization app installed (which she claims she never installed, but it is on her phone) and her charging times were horrid. It also made the phone quite laggy. I imagine if you got 2 or so of these types of apps on your phone, it could eat your battery instead of charging it.
Also, when you charge it, it is a strict charging cable not a MHL adapter right? I know when I have my MHL cable hooked up to my phone it claims it is charging, but it actually drains the battery slowly. (MHL is micro USB -> HDMI).
Since you have tried multiple chargers and cables, I would be looking at the phone as being the problem. Also, look at the contacts on the bottom of the phone and look for any bent pins. I wouldn't try to fix that yourself, but if they are bent, I'd take it in for repair. those pins are very fragile once bent and can break off if not handled very carefully after they are bent.
If you can get into adb from your phone to PC, then the pins on your phone should be good and the USB cable should be good. Does it charge if you put it in fast charge and plug it into your PC?
bmg002 said:
Can you go into settings->Battery and post a screenshot of it? I'm curious as to what is eating up most of your battery.
After, I would still try doing a nandroid and flash your rom cleanly and install 0 apps and try charging on this clean install. I know my friend ended up getting some battery optimization app installed (which she claims she never installed, but it is on her phone) and her charging times were horrid. It also made the phone quite laggy. I imagine if you got 2 or so of these types of apps on your phone, it could eat your battery instead of charging it.
Also, when you charge it, it is a strict charging cable not a MHL adapter right? I know when I have my MHL cable hooked up to my phone it claims it is charging, but it actually drains the battery slowly. (MHL is micro USB -> HDMI).
Since you have tried multiple chargers and cables, I would be looking at the phone as being the problem. Also, look at the contacts on the bottom of the phone and look for any bent pins. I wouldn't try to fix that yourself, but if they are bent, I'd take it in for repair. those pins are very fragile once bent and can break off if not handled very carefully after they are bent.
If you can get into adb from your phone to PC, then the pins on your phone should be good and the USB cable should be good. Does it charge if you put it in fast charge and plug it into your PC?
Click to expand...
Click to collapse
The pins are alright. As I stated, I recently changed the MicroUSB port, well I paid somebody to do it and it was working fine at first but then stopped charging, well, not stopped charging actually. At first it started to charge slower and slower untill it got to the point that it just says it's charging but it doesn't charge. It COULD be to the fact that I flashed new ROMs, downloaded games and all but I doubt it since now I have a brand new ROM with no games (or not that many) and you can see from the screenshots I uploaded that nothing's eating my battery
Well except for my screen, I had it at 80% brightness lol. Usually I set the brightness at the lowest (no Auto brightness to save battery) and my wall paper is color black since I heard Samsung phones do save up battery with black since it doesn't light the LEDs or something like that.
And yes, it's strictly USB cable. When I activate "Fast charge" and if I connect the phone to the computer it just shows the notification "USB connected" for a second and then disapears.
ShaDisNX255 said:
The pins are alright. As I stated, I recently changed the MicroUSB port, well I paid somebody to do it and it was working fine at first but then stopped charging, well, not stopped charging actually. At first it started to charge slower and slower untill it got to the point that it just says it's charging but it doesn't charge. It COULD be to the fact that I flashed new ROMs, downloaded games and all but I doubt it since now I have a brand new ROM with no games (or not that many) and you can see from the screenshots I uploaded that nothing's eating my battery
Well except for my screen, I had it at 80% brightness lol. Usually I set the brightness at the lowest (no Auto brightness to save battery) and my wall paper is color black since I heard Samsung phones do save up battery with black since it doesn't light the LEDs or something like that.
And yes, it's strictly USB cable. When I activate "Fast charge" and if I connect the phone to the computer it just shows the notification "USB connected" for a second and then disapears.
Click to expand...
Click to collapse
the screenshots attached were helpful. I don't see anything in that list that looks like a huge battery sucker and since you say your rom is fairly fresh and clean, it likely isn't the apps. Are you sure the guy who swapped the microUSB port did it correctly? Improperly soldered pins (especially those tiny ones on a microUSB port) can be tricky to solder correctly if you don't have the correct tips. It could also be that something else got damaged while putting that on (if the capacitors were not properly discharged before replacing the microUSB port, they could have gotten damaged).
I think that your assessment that it is one of the boards (likely the charging circuit) got damaged. I'd go back to the guy who replaced the port and get him to check the charging board (specifically the capacitors) to see if there is any signs of damage or wear. Capacitors can get damaged really easily if the heat on the iron was set too high. I know I've damaged capacitors while soldering things before. Or it could be that the port didn't get a solid solder connection or ended up briding some pins. If fast charge is on, your PC shouldn't see a USB device being plugged in. If you have a multimeter, you could check the resistance on the 4 USB pins and see if any of the pins are bridged.
bmg002 said:
the screenshots attached were helpful. I don't see anything in that list that looks like a huge battery sucker and since you say your rom is fairly fresh and clean, it likely isn't the apps. Are you sure the guy who swapped the microUSB port did it correctly? Improperly soldered pins (especially those tiny ones on a microUSB port) can be tricky to solder correctly if you don't have the correct tips. It could also be that something else got damaged while putting that on (if the capacitors were not properly discharged before replacing the microUSB port, they could have gotten damaged).
I think that your assessment that it is one of the boards (likely the charging circuit) got damaged. I'd go back to the guy who replaced the port and get him to check the charging board (specifically the capacitors) to see if there is any signs of damage or wear. Capacitors can get damaged really easily if the heat on the iron was set too high. I know I've damaged capacitors while soldering things before. Or it could be that the port didn't get a solid solder connection or ended up briding some pins. If fast charge is on, your PC shouldn't see a USB device being plugged in. If you have a multimeter, you could check the resistance on the 4 USB pins and see if any of the pins are bridged.
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Click to collapse
Well I took it to the guy from before and he couldn't find a problem with the phone's soldering, but even he wasn't sure what the problem was as if it's not his specialty. I do not have a multimeter :/
I was thinking taking it somewhere else and have them change my microUSB port to see if that other person might now a bit more. I'm sorry but I'm more of a software type of person, I clearly have no clue what the problem might be
THANK YOU for really helping me and taking your time to analyze my question, I really appreciate it thanks man
So if what you say is true, do you think it can still be fixed?
ShaDisNX255 said:
Well I took it to the guy from before and he couldn't find a problem with the phone's soldering, but even he wasn't sure what the problem was as if it's not his specialty. I do not have a multimeter :/
I was thinking taking it somewhere else and have them change my microUSB port to see if that other person might now a bit more. I'm sorry but I'm more of a software type of person, I clearly have no clue what the problem might be
THANK YOU for really helping me and taking your time to analyze my question, I really appreciate it thanks man
So if what you say is true, do you think it can still be fixed?
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It definitly can still be fixed, it'll just be tricky. If they are surface mount capacitors, which they likely are, it is hard to tell when they go.
Sent from my SM-T310 using xda app-developers app
bmg002 said:
It definitly can still be fixed, it'll just be tricky. If they are surface mount capacitors, which they likely are, it is hard to tell when they go.
Sent from my SM-T310 using xda app-developers app
Click to expand...
Click to collapse
So what I should tell them to do is to change the capacitors? I can leave the same miniUSB port right?
ShaDisNX255 said:
So what I should tell them to do is to change the capacitors? I can leave the same miniUSB port right?
Click to expand...
Click to collapse
I would tell them the symptoms and let them tell you what they think should be fixed. In my mind it is likely the capacitors on the charging board that need replacing, but without having the hardware physically in front of me and hooked up to a multimeter, I cannot say for certain. It could be a faulty microUSB port or a bad pin (bridged or microfractured), could be damaged PCB trace, could be gremlins
I would bring it in somewhere or give it to somebody and tell them that the phone doesn't seem to be taking a charge and ask them if they can look at it. If it is still in warranty, send it to Samsung to get fixed. If it is outside of warranty, take it to somebody who knows their stuff (likely a professional repair shop OR somebody who does cell phone or PCB repair for a living... hobbyists may be able to fix it, but to me this sounds like something that somebody with training should likely look at).
Since you have tested different AC adapters (including known-good ones) and different cables (including known good ones) and charged the battery outside of the phone, that narrows the problem down to being something with the phone. You narrowed down it is likely not software related, so that leaves hardware. I know from experience soldering very small components can cause bridges quite easily; even when done by the pros. Some bridges don't matter, but it is better to avoid solder bridges whenever possible. I know I had to replace my nintendo DS slot-1 due to a busted pin and soldering that thing with a large iron was a pain in the behind. Got it all fixed, but it was not an easy task.
bmg002 said:
I would tell them the symptoms and let them tell you what they think should be fixed. In my mind it is likely the capacitors on the charging board that need replacing, but without having the hardware physically in front of me and hooked up to a multimeter, I cannot say for certain. It could be a faulty microUSB port or a bad pin (bridged or microfractured), could be damaged PCB trace, could be gremlins
I would bring it in somewhere or give it to somebody and tell them that the phone doesn't seem to be taking a charge and ask them if they can look at it. If it is still in warranty, send it to Samsung to get fixed. If it is outside of warranty, take it to somebody who knows their stuff (likely a professional repair shop OR somebody who does cell phone or PCB repair for a living... hobbyists may be able to fix it, but to me this sounds like something that somebody with training should likely look at).
Since you have tested different AC adapters (including known-good ones) and different cables (including known good ones) and charged the battery outside of the phone, that narrows the problem down to being something with the phone. You narrowed down it is likely not software related, so that leaves hardware. I know from experience soldering very small components can cause bridges quite easily; even when done by the pros. Some bridges don't matter, but it is better to avoid solder bridges whenever possible. I know I had to replace my nintendo DS slot-1 due to a busted pin and soldering that thing with a large iron was a pain in the behind. Got it all fixed, but it was not an easy task.
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This gives me new hope, I really don't mind charging my phone this way, but I'd rather have a complete phone with the ability to charge from a wall outlet
Thanks so much, I hope I can count on you if I run to anything else. And hey, you learn something new every day, ALL of this has been really helpful
ShaDisNX255 said:
This gives me new hope, I really don't mind charging my phone this way, but I'd rather have a complete phone with the ability to charge from a wall outlet
Thanks so much, I hope I can count on you if I run to anything else. And hey, you learn something new every day, ALL of this has been really helpful
Click to expand...
Click to collapse
Glad I can help. I used to work professionally soldering tiny components before moving into IT. Done some hardware mod to a few cameras, repaired a ps2 controller, have an old tube amp going fix soon too. I've seen a lot of weird things happen with bad solder joints or faulty capacitors.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
My Tab S 10.5 is all of a sudden not charging. I have it set to make a sound when plugged in and every ten seconds or so it makes the sound and the charge indicator goes on and off. I'm not touching it at all. It's like it is constantly connecting and disconnecting by itself.
I turn it off and try to charge it when off. Every few seconds the screen turns on with the battery charge picture. It's using more power doing that than it is getting from the charge. I finally have to unplug it to save what battery i have left.
I'm using the Samsung usb cable and charger but I've tried different cable and charger with same result. Do I have a bad usb port? It seems so. I have to wiggle the plug a little at times make charge indicator comes on. But as I said, it's going on and off without me touching it.
It's the weekend so I can't call Samsung. I hope it's covered by warranty.
I have never heard of an S1 owner with an bad microusb port (you could be the first) though i would blame the battery first until proven wrong as it`s way more common, just wait till Monday and get it repaired or replaced.
John.
Oh shoot I just checked my receipt. Bought 11/30/14. Any one has experience with Samsung on product just out of warranty?
It depends on the country you bought it in, also how you bought it, credit cards often get you a second year of protection.
In Europe you can have a 2 year warranty, in the uk you can claim for up to 6 years supposedly.
If it`s the battery you can buy them on ebay for £10 and youtube has a guide on replacing them, I am not cetrain of the microusb ports is a separate module or if you need to replace the motherboard.
EDIT: it looks like the microusb is removable see 2m20s on the video below.
https://www.replacebase.co.uk/samsu...nt-micro-usb-charging-port-and-micro-sd-card/
John.
https://www.youtube.com/watch?v=hm2_AUS_ZpM
Thank you very much. I'll buy the part and maybe I can get a local shop to replace it for me. I'm disabled so I'm hopeless with this kind of repair.
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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Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
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:
Click to expand...
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.
I plugged in my Zuk Z2(plus) into a charger yesterday happened to be a fast charger QC and within about 10 minutes it went up in smoke charger seems fine (cable melted) but the phone now only shows the ZUK logo and switches off,
Doesn't seem to charge either just vibrates, from the looks the charging ports a bit melted, Was lucky it didn't properly catch fire,
Anyhow to the question, I can get to (stock) recovery and I imagine I'll need a new charging port, but anyone know if the motherboard is likely fried too or would I get away with a new charging port on it ? (and obviously never charge with a QC again) .
I had the same thing happen to me. I was charging my ZUK in another room using a Quick Charge 3.0 charger. I went to check on it. There was smoke coming from the charging port (which was scorching hot) and a horrible electrical smell. Phone wouldn't turn on. From what I remember it was just a white LED when pressing the power button, maybe the vibration too. I tried to charge but it wouldn't do anything. Couldn't boot to EDL mode. I thought it was dead.
A few days later, I remember plugging the phone into my laptop (in another attempt to diagnose the problem) and at some point I got distracted and left it plugged in. After about 30 minutes I was suprised to see that it randomly powered on by itself and came back to life. I believe I still had trouble getting it to charge, and that the battery percentage was stuck on 0% when when plugged into the mains. But eventually it all just fixed itself and I have been using the phone for another 2 years without issue. Guess I got lucky.
Sadly it sounds like your phone is a little more damaged that what mine was. I did not have any visible damage, it was just a bad electrical smell that remained for a few weeks or months. I have heard from other people who had this problem and I believe there is a little component on the motherboard that overheats and burns out when trying to use a Quick Charge mains charger. But the phone works fine without it. I know the charging port is fastened to the motherboard so it would probably require soldering.
Example of replacement - Try looking on other sites like AliExpress: https://www.maxbhi.com/charging-connector-for-lenovo-z2-plus-32gb-zuk-z2.html
Don't I remember people hacking "the fast charging chip" off the board to fix this problem? Literally prying the chip off and it sorting this issue out and allegedly the phone working well. Try a search for something like that.
I know this was a common fault with fast chargers killing the phone.