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I have a jasjar recently and had problems turning off at 50 percent. It was working fine as long as power odesnt drop below 50 %. Then I bought a desktop charger (made in china) and started charging from there. That's when all this weird problems started.
When I put the fully charged battery inside sometimes it doesn't power on by pressing the power ubtton so I have to reset it to turn on. Sometimes it doesn't turn on with reset so I have to go to bootloader then reset just to turn it on. Sometimes it just won't turn on! If it does turn on sometimes the screen is white! When it does boot properly and go on standby. The lights blink but it won't wake up so I have to reset it. Sometimes while using it, the screen would just turn garbled white.
This don't happen all the time, Im actually typing this post using my jasjar and even if I charge the battery using the phone, it exhibits the same problems once in awhile.
SOLUTION FOUND!!! READ THE LAST THREAD
Any ideas? Could the battery be doing this or is my jasjar messed up? Please help!
I downgraded to wm 5 Helmi ROM and seems to work for now. I was using Helmi's wm6 so I don't know if that attributed to that. Will update.
Still didn't help.. Any ideas? Is my jasjar dying? Please help!
Battery issues
Here and elsewhere are postings which make it apparent that some after-market batteries don't work well with the Jasjar. Some electronic devices are relatively fussy about voltage and amperage levels, and some off-brand batteries are fairly wide of the mark in those regards. Not necessarily on the low side, either.
The problem is not limited just to computers. I had an electronic remote reading thermometer whose display went nuts; the manufacturer asked whether I was using EverReady or Duracell batteries. When I replied no, I was using Ikea batteries, they told me I had to use EverReady or Duracell batteries or I was likely to encounter the problem, and they're right: using those batteries fixed the problem. Not that the Ikea batteries were bad, mind you: their power level (voltage and amperage both) were actually too high, according to the manufacturer, and my VOM tester confirmed their assertion.
Somewhere on this forum is a link to an eBay supplier of batteries which work reliably in the Jasjar. Good hunting! Cheers,
Thanks but I'm using the original battery. So do you think that the desktop charger did something to the battery?
may be it caused by a desktop charger. When i used a chaeger made in chine for my alpine, sometime the screen goes white, or ALL buttons seems die (All button didn't work). The most terrible is that charger make my dive hard reset 2 times (first time i din't realise if it cause by my charger, then i just install all progs but when i charge, it hard reset again).
Even for 5 days after i bought it run well, except the ringtone goes on silent every time i charging.
Now i throw away that thing.
So its the charger!! GRRR...Anyways, even when I'm using the Jasjar to charge, everything is the same. Lockups from standby, white screen..You think I should try another battery? Any ideas?
Weird stuff / battery related?
Hi there,
dont know if anyone is reading this thread coz it is kinda old, but i have the same probs mention as above. I have the orginal bat and charger which came with the device. I also uses a car charger sold from my phone provider.
now after 14 months i have the weirdest things like shutting down randomly when the bat is about 58 thru 50 percent. I can not start the device again coz it stops in the middle of the boot process. It only starts when i connect it to a laptop by usb or to the standalone charger...
I tried differnt roms found here and radio roms but it doesnt help...
my guestion: does any one know if this prob is solved when I buy a new battery? or is it wise to thro out this universel suck device ( I have had so much probs with this device so neglect my tone...)
XCube said:
Hi there,
dont know if anyone is reading this thread coz it is kinda old, but i have the same probs mention as above. I have the orginal bat and charger which came with the device. I also uses a car charger sold from my phone provider.
now after 14 months i have the weirdest things like shutting down randomly when the bat is about 58 thru 50 percent. I can not start the device again coz it stops in the middle of the boot process. It only starts when i connect it to a laptop by usb or to the standalone charger...
I tried differnt roms found here and radio roms but it doesnt help...
my question: does any one know if this prob is solved when I buy a new battery? or is it wise to thro out this universel suck device ( I have had so much probs with this device so neglect my tone...)
Click to expand...
Click to collapse
I bought my Universal (Jasjar), used, almost a year ago and use it daily. To date, I haven't had this problem, but I'm anticipating it. Yeah, I'd say it's almost surely your battery (they don't live forever), just be careful to replace it from a reliable source.
Sorry you don't like the device; I've thoroughly enjoyed mine! Cheers,
Hi,
I guess u r right, batteries will die. So I ordered a new one, I will let you guys know if it helps. I bought the qtek 35H00058-00M battery which is the orginal bat
The thing is, normally will a battery be faster drain so it would become faster 0 or 10 precent, instead this piece randomly shutting down or switches off in the middle of a phone call.
I have a Blue Angel as well, now for more then 2 years, which is charger daily just like mine unversal. The batt of the Blue Angel outruns the uni with bat life. Never had this weird stuff with the ba, like shuttingdown without a warning.
Well I will see if a new bat will fix the trouble, tomorrow my new bat will arrive.
cheers.
I also have the same issue with the 02 Exec. It switches it's self off when the battery reaches below 50%. I have ordered a new battery. Will let you know if this still happens once it arrives.
Well,
I already knew it but now its for sure at my end. HTC and ms together gives u pretty expansive CRAP.
Got my new battery which was carefully chosen because of other rumours of battery problems. I bought exactly the same battery from QTEK as the original.
Yesterday i got the battery, left it alone to get on room temp. this morning switch it with my old battery.
1. First thing what i found strange was that my **** device said it was at 100%
2. after 45 min I had the same bat prob as with my old battery
3. device can not be started on bat power, which would let u think that the bat would be ZERO procent. However turning the device on when on wall power this **** device says that the bat is 100%, but disconnecting it from the wall power it shutdowns right away.
conclusion:
the new battery is worse then the old bat. the only difference between them is the serial number. same type same manufacturer.
I was already think of buying a non HCT / Micro**** mobile device, but today after 14 months of trouble and losing important phone calls I am going to say good bye to this universal crap.
I wise u the best with our device but for me it ends here.
UPDATE:
Used a 3800 mah battery from expansys, made in Taiwan by Dyna and still same problems...not battery related at all...Anybody got a mainboard they can sell me...even a broken miniusb.
Problem and solution found
The Problem is a faulty voltage controller in the mainboard causing Bulverde CPU to hang and give funny colors to the screen
Solution is to disable Cpu scaling of Bulverde by using pocket hack master and setting speed at 312mhz before turning it of or closing the screen. You could always set it at 520 when using it but before turning it off make sure speed is 312. Hopefully this helps others with this problem.
Hey guys,
A friend of mine recently bought this tablet and everything was running very very smooth, until he received the OTA to 3.1 . Besides the wifi bug ( very easy to get rid of ), he is now experiencing a really really weird touch lag. Let me explain: as soon as he plugs the tablet in the charger the touch gets really unresponsive forcing him to slide/touch several times before the tablet detects the input even if the system keeps working as it should, ie no slowdowns etc.
Funny things is this bug only shows up (for now) when he plugs the charger in university while not happening at home.
Has anyone experienced the same? Im starting to think that the charger plug has a defect and is in some way affecting the touch system ( electric\magnetic stuff ) leading this to an hardware related problem, but I want to be sure so maybe we will try to flash something (Are there Acer tools to flash full stock roms?). Tablet is running original rom and recovery, I just messed with the wpa_supplicant files but I dont see how this could be related.
Thanks in advance guys
When my screen is off and I turn it back on when I switch from charger to battery I get laggie for a minute. Same on my notebook and my cell.I believe its to do with changing some power profiles/settings. If you recover in a minute or so its prob fine. If not watch running apps. If you see something running all the time.use a freeze program to trouble shoot if its a rouge app.
Hope this helps to troubleshoot your isssue
If im wrong with this information please just give your correct response to the open. Do not bash my openion.thanks
saw one other thread with similar problem...
http://forum.xda-developers.com/showthread.php?t=1166209
~~~~~
110 volts
I live in indiana.
When you plug your charger in the fram becomes hot. 110 volts to earth. Just check it, can't be good.
shaun298 said:
I live in indiana.
When you plug your charger in the fram becomes hot. 110 volts to earth. Just check it, can't be good.
Click to expand...
Click to collapse
Fram? 110 volts? What are you talking about?
More details - please. "110 volts to earth"? Not making much sense.
My guess, and its just a guess, is that his charger is somewhat faulty and not regulating the power correctly. Ask him if he plugs straight to the wall at university and into a power strip/surge protector at home. If he is, then I would imagine that the power strip is regulating the voltage enough to let the charger work, where the wall outlet is making the charger fail. I'd try a new charger if one is available and see if that fixes the issue...or take a surge protector with him to university and see if that also takes care of it. If he isn't using a power strip at either place, then we are back at square one.
Have you tried going back to an unmodded system to see if that works? (by that I mean remove/undo wpa supplicant).
I have no idea what that problem could be as it seems hardware based by just reading what you typed, but it could be software too which is called into question by the little mod you did.
What I find odd is that it works in one place and not another.
Does it happen when Wifi is off completely? (Just asking because I'm thinking if it has to do with the wifi mod you made, perhaps turning Wifi off and testing would show up something).
I'll just tell you what I would try in that situation.
1. Go back to a stock ROM, fully. No mods, no root, no hacks. Preferably one designed for your region. (We have no idea if any of the hardware in these units is different based on region, which is why I never recommend putting a ROM on the device unless it's 100% certified to be originated from a device purchased within that region).
2. Factory reset. (It doesn't fix everything, but it fixes most software glitches - especially when they're caused by outside sources like apps or settings mess ups).
If it still happens after that then you've at least ruled out all software suspects.
The frame of the a500 is hot. The charger is none polorized so makes no difference which way you plug it into the wall or extention plug is the same. Check your charger to earth and you will see line voltage no mater where it's pluged in, and don't have to be pluged into the a500. They need replaced. Just meter from the outside of the charger plug to ground and you will see the problem. Might not be on all chargers, but I would check mine.
Just check you charger plug to earth without the a500 pluged in, the problem is not in the unit or software just the charger.
teuz said:
Hey guys,
A friend of mine recently bought this tablet and everything was running very very smooth, until he received the OTA to 3.1 . Besides the wifi bug ( very easy to get rid of ), he is now experiencing a really really weird touch lag. Let me explain: as soon as he plugs the tablet in the charger the touch gets really unresponsive forcing him to slide/touch several times before the tablet detects the input even if the system keeps working as it should, ie no slowdowns etc.
Funny things is this bug only shows up (for now) when he plugs the charger in university while not happening at home.
Has anyone experienced the same? Im starting to think that the charger plug has a defect and is in some way affecting the touch system ( electric\magnetic stuff ) leading this to an hardware related problem, but I want to be sure so maybe we will try to flash something (Are there Acer tools to flash full stock roms?). Tablet is running original rom and recovery, I just messed with the wpa_supplicant files but I dont see how this could be related.
Thanks in advance guys
Click to expand...
Click to collapse
I had an issue like this with a palm pre, and the only solution i could determine was that i was using an offbrand charger that wasn't supplying the right voltage/amperage and causing flakiness with the electrical charge on the screen. maybe the charger is damaged, or they're using an off-brand one?
Ty guys and sorry for the late reply. Yeah I was thinking about reverting back to the stock system but unfortunately I'm not very familiar with the tablet scene not having one and since he is a little frustrated atm about his situation maybe flashing a recovery to flash a stock rom isnt really the way to go. Isn't Acer delivering any tool to flash a full rom just to try if that will solve the problem?
Thanks again!
So wait someone is getting 110v from ground to the metal frame of the tablet?
Sent from my A500 using XDA Premium App
Same issue
I found this thread, and this is exactly what's happening to my tablet. When it's plugged in, the screen becomes very unresponsive, and it's very annoying. I can't charge it and use it at the same time. It's not even like galaxy tab 10.1 or ipad 2 where the battery life lasts like 10 hours! I am extremely frustrated about this issue..Mine has this issue at home. I don't bring charger to school, so I don't know about that. I'm really surprised that only very few people actually have this issue..
electrical grounding no good
Anyone has a solution to this?? Should I buy a new charger? I don't want to just waste money if it's not gonna fix the problem.
Thanks.
I had a similar experience to all of this when I was recently travelling by airplane. There were charging outlets (US-style 2-prong) on the back of each seat and my tablet absolutely REFUSED to respond properly to touch when I plugged it in. At the airport, in the hotel, at home, and everywhere else I've used it, it worked properly.
My conclusion: touch screens on A500 are very sensitive to electrical problems. I suspect that an airplane's electrical system isn't as "standard" as everywhere else, and whatever the difference was (a grounding issue, or a voltage regulation issue, or whatever) caused the touchscreen to freeze.
My suggestion to the poster and others with "when I plug in the touch screen stops working": go to another location (i.e., a friend's house, work, school, a coffee shop, etc.), plug in and see if the same problem happens. If it does, it might be your charger, so try someone else's A500 charger at a bunch of locations and see if the the same problem occurs.
I would guess that most people with this problem (not the "when I plug it in it gets for a few seconds" problem, but the "touch screen doesn't work when plugged in" problem) will find a solution lies in their power source, not the A500 itself.
BigWheeler said:
I had a similar experience to all of this when I was recently travelling by airplane. There were charging outlets (US-style 2-prong) on the back of each seat and my tablet absolutely REFUSED to respond properly to touch when I plugged it in. At the airport, in the hotel, at home, and everywhere else I've used it, it worked properly.
My conclusion: touch screens on A500 are very sensitive to electrical problems. I suspect that an airplane's electrical system isn't as "standard" as everywhere else, and whatever the difference was (a grounding issue, or a voltage regulation issue, or whatever) caused the touchscreen to freeze.
My suggestion to the poster and others with "when I plug in the touch screen stops working": go to another location (i.e., a friend's house, work, school, a coffee shop, etc.), plug in and see if the same problem happens. If it does, it might be your charger, so try someone else's A500 charger at a bunch of locations and see if the the same problem occurs.
I would guess that most people with this problem (not the "when I plug it in it gets for a few seconds" problem, but the "touch screen doesn't work when plugged in" problem) will find a solution lies in their power source, not the A500 itself.
Click to expand...
Click to collapse
Thanks for your suggestion. I'm actually moving to a new home tomorrow, so I'll try the new power outlet. Hope it won't have problems like right now..
Touch Screen doesn't work on airplanes.
sw6lee said:
Thanks for your suggestion. I'm actually moving to a new home tomorrow, so I'll try the new power outlet. Hope it won't have problems like right now..
Click to expand...
Click to collapse
I have run into another problem related to touch screens - mine doesn't work on airplanes. I think that there is some sort of pressure differential issue - the screen works fine on the ground, but once I open the tablet when the plane is at altitude, the screen just stops working - it doesn't matter if the tablet is plugged in or not.
Annoying to say the least. Last night I pulled out my wireless mouse to use the tablet, and a stewardess noticed this and told me to put it away as wireless devices aren't allowed on airplanes.......
Any suggestions?
I just want you guys to help me diagnose the problem.
I was charging my phone yesterday with a cheap car charger.
My phone now produces lots of heat, eats lots of current (discharges quickly) and USB is not working (only charging).
I tried flashing different radios, kernels, stock rom and factory reset - didn't help.
Plugging a phone into Ubuntu PC doesn't add any logs about new USB device in dmesg, even in fastboot mode.
My questions:
1. What can cause SoC to produce heat and to discarge battery very quickly?
2. Is it a failure of a USB board or of the SoC itself?
I have two options on eBay: logic board and usb board.
It would be great to buy a 16GB motherboard instead of my current 8GB, but I want to address the problem with less money spent on it.
I don't know which one to buy.
same problem
Unforunetly I don't have a solution for you, I have been experiencing the same problem since last week. My phone no longer charges in AC mode, I can't connect it to any PC (fastboot doesn't work), and the battery is draining fast (from Phone Idle process). It is warm when the screen is off. I am on Android 4.3, it was working fine up until last week.
I'm about ready to RMA it, however it's interesting that I am not the only one experiencing this problem lately.
jasonsch said:
Unforunetly I don't have a solution for you, I have been experiencing the same problem since last week. My phone no longer charges in AC mode, I can't connect it to any PC (fastboot doesn't work), and the battery is draining fast (from Phone Idle process). It is warm when the screen is off. I am on Android 4.3, it was working fine up until last week.
I'm about ready to RMA it, however it's interesting that I am not the only one experiencing this problem lately.
Click to expand...
Click to collapse
What did you do with your phone before it started behaving this way?
reqmon said:
What did you do with your phone before it started behaving this way?
Click to expand...
Click to collapse
I'm not sure what caused it, I have a feeling it's similar to what happened to yours. I use a blackberry car charger in my car, and at work I use a non LG AC charger. So I'm thinking it was the car charger, but the weird thing is it has been working fine with both chargers for 6+ months.
jasonsch said:
I'm not sure what caused it, I have a feeling it's similar to what happened to yours. I use a blackberry car charger in my car, and at work I use a non LG AC charger. So I'm thinking it was the car charger, but the weird thing is it has been working fine with both chargers for 6+ months.
Click to expand...
Click to collapse
Another thing is that I was installing a faux kernel 3 days ago, but it didn't cause these symptoms instantaneously (instead, it made my nexus super power-efficient), so I don't think that was the cause, too.
P.S. Google's RMA policy doesn't allow to return phones after 15 days, so I think the best choice would be to buy a broken phone and interchange the parts.
reqmon said:
Another thing is that I was installing a faux kernel 3 days ago, but it didn't cause these symptoms instantaneously (instead, it made my nexus super power-efficient), so I don't think that was the cause, too.
P.S. Google's RMA policy doesn't allow to return phones after 15 days, so I think the best choice would be to buy a broken phone and interchange the parts.
Click to expand...
Click to collapse
I haven't used any custom kernels or ROMs. I am rooted with custom recovery though.
There is a 1 year warranty on the phone, and I am within that 1 year so I hope to be able to get a replacement. This appears to be a hardware problem.
edit: Have you tried taking the battery out? In previous phones when stuff like this would happen I was able to pull the battery out. I tried to open my phone but it's a pain to pry open without breaking something.
jasonsch said:
I haven't used any custom kernels or ROMs. I am rooted with custom recovery though.
There is a 1 year warranty on the phone, and I am within that 1 year so I hope to be able to get a replacement. This appears to be a hardware problem.
edit: Have you tried taking the battery out? In previous phones when stuff like this would happen I was able to pull the battery out. I tried to open my phone but it's a pain to pry open without breaking something.
Click to expand...
Click to collapse
No, but I will do this tomorrow. I don't know if this helps.
P.S. Sometimes I get this in dmesg:
Code:
[738145.499853] hub 2-1:1.0: unable to enumerate USB device on port 8
...which is not good either.
Well, I tried removing the battery - that didn't help.
What actually helped, is the following:
1. Bought cheap broken nexus.
2. Exchanged motherboard and usb board with my existing device.
3. Sold broken nexus for cheaper price.
4. ...Profit!
Now my nexus works again, and more than that, it has 16gb instead of 8gb. It wasn't hard.
I'm happy now.
Firstly, sorry for my english. I have received my Y206 yesterday and today was my first day with it. Kit kat, I'm going to use it a few days at least before trying to update it. I have had a really poor battery life but I suppose that I will have to block all the google things (the "ok google" must be a master draining...) and maybe some other things, and it is just the first time I charged...and here comes my doubt:
If I connect the cable (or put it on the QI charger) being switched off, it switches on. I mean, I can live with this, but it is the first time I see this, I have always charged my phones switched off along the night with no problems, so I wondered if this is maybe a problem of my phone or just normal in this model.
Yes that's normal, Every Yotaphone does that. I always charge in extreme power save mode. You can turn the active screen onto the EPD too or put into airplane mode, to charge quicker. Yes the battery life of the Chinese yotaphones is poor, also the glass will break easily, make sure you use screen protectors and a bumper.
For me the chinese yotaphones have fake parts, but still ok.
Hello, I have a problem with TAB M10 10.1" HD, 2GB/32GB (tb-x505f)
I am using this tablet as wall install for house smart controll, and with constant charger connected, the battery got bigger, so I decided to repleace it. I bought OEM battery.
Everything went good, repleaced with new battery, except tablet always shows 50% of battery no matter what situation.
It never goes up with charging or down without charger. It just dies after some time without charging and sometimes it turns off even with charger connected, so not good even for wall install.
I have tried the old battery and it worked perfectly fine.
So I have returned new battery thinking that it's bad and ordered from different store a Cameron Sino battery.
Guess what. The same problem.
So it looks like this tablet wont accept any other battery no matter if its original or other brand.
My question is if there is some kind of trick for battery repleacement, maybe some calibration or reset?
There is no such option in recovery menu.
Tablet is not rooted or midified in any way.
Searching the internet didnt help me. I would be realy grateful if someone could help me.
Thanks for any replies in advance.