yashsingh1/xdaforums huggingface dataset:
[Android General] Dan Law 001:
Hello, I just got a Onda v971 tablet with JellyBean 4.2.2 and I experienced heaving battery draining issue. As a matter of fact, even that with light to moderate usage (surfing the web, few Youtube videos, Google current, etc.), about 20% on average of the battery heath was lost during a period of 30 minutes. However, my battery has 8000mAh as claimed so I really don't think that it was due to the capacity. Therefore, I try to focus more on the software of the tablet to see if I could do anything. Thus, after searching for a while on this forum, I discovered that the battery draining might caused by the "fuel_alerted" bug or kernel on the stock JellyBean. Any advice? Will post some picture soon...

---------- Post added at 11:22 PM ---------- Previous post was at 11:18 PM ----------

It will be at XDA'S ADVANTAGE that if it increases its support on not just Onda, but on other Chinese/Taiwanese tablets as well since these manufacturers are growing faster and faster and many of us would spend money on their products.
[Android General] Dvalin21:
In the mean time you can use this: http://www.aliexpress.com/item/L007...y-Li-ion-battery-for-tablet-pc/637831651.html Also, what is this fuel_alerted bug?
[Android General] Dan Law 001:
Thanks for suggestion however I don't plan to use hardware to correct the perineum since after searching online I found that the draining issue was likely occurred because of the 4.2.2 version of Android. In fact, many other devices that use 4.2.2 also report a similar problem regarding to battery life and I think now the only way to solve the problem is to wait for Onda to downgrade or upgrade the ROM to a different version.
[Android General] bdjh:
Good to hear we "only" need to wait and that it is not a hardware problem only. Tablet rocks on the latest stock firmware, except for the battery life.
[Android General] Dan Law 001:
If you gave read online, people were all talking about the battery issue on 4.2.2.
[Android General] u669983:
HI Dvalin

Have you changed your battery with the one in the link ? And if so have you had a noticeable improvement?

Thanks for feedback

cheers
[Android General] WelCoMe2DeT:
Gotta buy it! XD
[Android General] mido5830:
had it working flawlessly for a month

but once while I was surfing the web it suddenly went blank no matter what I do no response for power button or any thing left it in charger for hours also no response tried the phoenix but it seems to be broken in hardware not software the pc cannot find any attached devises no matter of how many times I press the power button

any one here had something like that ??

is there any way to make sure it still alive ?? I think I lost it for ever :crying:
[Android General] bregga:
I would open it up

check your battery wires sound like it may have been a bad solder joint
[Android General] arokux:
uname -a

Can anybody with SDK 3.2 ROM please run

uname -a

I'm interested in the kernel version they use.

Thanks
[Android General] Dvalin21:
I haven't installed it yet I'm waiting for y device to come back fro repair
[Android General] Dan Law 001:
Does anyone here have the battery draining issue with the V972 running 4.2.2? I gave a V973 running the same firmware and it experience heavy battery drain when the screen is on :banghead: but battery usage in idle was satisfactory:thumbup:
[Android General] hurray:
[MENTION=881357]onda[/MENTION] V973 (v1) with SDK 3.2.1 ROM:

root@android:/ # busybox uname -a

Linux localhost 3.3.0 #1 SMP PREEMPT Thu Jul 25 16:28:08 CST 2013 armv7l GNU/Linux
[Android General] dasmarian:
Agree on M9

I bought a Pipo M9 after trying the miserable 972 and I couldn't be happier with it. It never crashes, have been able to dl and run any app I have wanted to load, battery life is like 8+hours, and the resolution hasn't been noticeably different than the retina display. I'm not sure why others would be down on it unless they are tinkerers, the tablet is snappy and works great out of the box.
[Android General] Dan Law 001:
How can you make your battery last that long!? I have a Onda v973 with 4.2.2 and battery drain really fast. What android version is it? What type of battery is it?
[Android General] spectra9:
I think dasmarian was talking about the M9, not the Onda ;)
[Android General] Dan Law 001:
All android devices are based on the same principle.
[Android General] spectra9:
You can tell that to Onda then :D.

Seriously, comparing the M9 to the 973 regarding battery life is not a fair comparison. The M9 is non retina with A9 CPU, while the 973 is retina with A7 CPU
[Android General] KnieveI:
I got my V972 early with 1.0.2 firmware i think ,Android 4.1.

The batterylife has always been bad. Some better some worse.

Best has been the last stock 3.2.1 Android 4.2.2

Have been thinking for a long time about replacing the battery with a larger one.

Didnt think 12k mah would make a big difference from the standard 8k mah.

But when i compare the standard battery with others it is clear that its not 8k.

It doesent make sense in any way. It is too small, weights nothing and the batterylife!!

And the 12k battery i bought gives about 3x batterylife, about 9 hours.

Now things starting to make sense.

Maybe Onda should have spend less on the cameras and a little more on the battery?

Thanks

Knievel
[Android General] Dvalin21:
Ive been without my v972 for awhile. I was suppose to send it back to china, but i didn't want pay 60 bucks to do so. So had to do some ....SPECIAL....engineering. A few months back I had broken the micro usb port. So I cut a usb cord, soldered the 5v (Red) and Ground (Black) to the matching color of the battery connections. So far so good its charging. Charging slow as hell, but charging. Only problem that I have now is remembering which firmware I have on and can I even boot into CWM. I'm hoping that I can at least then I would just be able to install CWM/TWRP versions of the firmware. When its finished charging Ill give you guys an update.
[Android General] bdjh:
Knievel, any link to a manual how to swap batteries? Don't understand how going from 8k to 12k can increase battery life 3x. The 8k must have been relatively poor then.
[Android General] KnieveI:
Yep battery was really poor. But iv got an early v1 so Onda may have changed battery in later versions.

Open the tablet is easy. 4 torx screws, then use a credit card or guitar pick to open around the edges of the cover.

Watch power and back buttons.

Be patient when you remove the old battery, its like glued to the back of the screen.

I just cut the old cables and twist them together with the new one, and isolate it with heat shrinking tube.

No soldering for me. Of course soldering would be better in terms of space occupated by the extention ive made on the cables.

Then put it together.

We got a thread over at Slatedroid too about this issue.

Thanks

Knievel
[Android General] msav:
Batteries ordering from china has always been disappointing. They always exaggerate the MAH. I believe that with the onda tablet it is probably the same thing. they are probably 5000MAH. probably the same thing with the 12000MAH they are probably more like 10000MAH

Knievel,

Did you notice if the batteries were labeled 6000 MAH the outside of the batteries?

I am hoping that they actually are 12000 MAH. from your description of the thickness it sounds promising.
[Android General] aaronm13:
Did you really not have to solder the new batteries in Knievel? If you don't have to solder thats me sold on this. The batteries are killing this tablet but I've never soldered before so I'm very reluctant to experiment on my tablet. Is there any downside to just cutting and joining the wires together?
[Android General] KnieveI:
Right no soldering for me. But i recommend buying some heat shrinking tube for isolation and to keep the joining thight.

Then it shouldnt be any downside with this method.

Be carefull with the old wires so they dont fall of the main board when joining together with the new one.

The big issue for me has been getting it all thight together. The new wires and battery are little thicker , so you might want to cut of all extra wire

and isolation that arent needed.

Best wishes.

Thanks

Knievel
[Android General] aaronm13:
Cheers for that Knievel. What size tube did you use. Want to try and get everything together before I open the tablet up. I go ahead and order the batteries of actablet.com too.
[Android General] KnieveI:
It was about 5mm before heating i guess.

Thanks

Knievel
[Android General] KnieveI:
[MENTION=3497049]msav[/MENTION] Sorry didnt see your question.

The batteries wasnt labeled in any understandable way to me.

Thanks

KnieveI
[Android General] Dan Law 001:
The battery drain is likely caused by the 4.2.2 (I would say the battery stat) instead of the hardware itself. There is no point to do any modification on the hardware. Moreover, the battery is exceptional in standby, so I doubt that the manufacto is "lying" on us (why they really want to do this if this product is successful?).
[Android General] KnieveI:
In my opinion the 4.2.2 ( 3.2.1 )has the best batterylife.

Used the V972 since January , and tried every firmware released.

The battery i found inside my tablet was a joke.

Now i got a "real" battery inside and i am quite happy with it for the first time.

But maybe Onda did change the battery in later versions.

Thanks

Knievel
[Android General] Dan Law 001:
I have an V973, the battery is great in standby, but drains a lot when the screen is on. If the battery has quality issue, high discharge rate for instance, it will also drain a lot when the screen is off. And here is the question: why is only drains when screen on? Therefore, I believe that the battery drain is caused by the software (probably battery stat) or miscalibration.
[Android General] petepc:
I have also upgraded my battery. Orderred a 1200mAh LG set from AliExpress, and installed it a couple of days ago. Battery life is definitely improved - with heavy use of chrome, twitter and some apps, it has run 5h 6m on the battery with 20% remaining. Battery screen showing 91%, others 3% and lower.

some photos here: http://imgur.com/a/xNygq
[Android General] Dan Law 001:
This is one of the option but I think that the best way to solve draining issue us to focus more what causes the drain. Just like if you are taking shower and you notice that your water pipe in your house is leaking water you will find the way to fix the pipe rather than increase the water flow in order to let more water out in the shower...
[Android General] petepc:
Sure we can fix the leaks - in the meantime I got a bigger water tank....

I weighed the original battery at 132g - the new LG 1200mAh is 207g
[Android General] aaronm13:
Ordered my batteries off actablet.com. So hopefully I'll have them soon and I can give this a go, just hope I don't break anything separating the battery from the screen, any tips.
[Android General] KnieveI:
Hi.

I would use something like a sharp spatula, or a flat blade to cut the tape on the backside of battery.

Dont bend it to hard ,and cut tape or batteryfoil only.

Im not sure but the battery may leak if you damage it.

After a couple of reviews it looks like the actablet battery is the best option so far.

Thanks

Knievel
[Android General] aaronm13:
Thanks for that Knievel. Glad those batteries seem the best. Mine were dispatched this morning so hopefully I'll have them in about two weeks.
[Android General] petepc:
I found using a plastic ruler as a wedge to be handy for this, as shown in the images I posted above.

Just be aware there are two strips of double sided tape as shown in my pictures above.

By pushing the ruler in between the battery and the aluminium sheet it broke the hold of the double sided tape, and only apply force laterally - i.e. no downforce or upforce, so there is minimal up/down reaction forces through the screen. Be careful not to damage the wires and other components though
[Android General] aryanitinkumar:
@ petepc.........can you furnish the aliexpress url where you ordered the battery from!!

Thanks!!!
[Android General] msav:
the battery is actually not taped to the back of the screen. it is taped to a sheet of metal that also happens to be the ground plain for the antenna. if you really want to be safe you can remove the motherboard and remove the metal plate with the battery still attached so you can get better access to the tape. however it is not really necessary unless you want to avoid damaging the old battery.
[Android General] msav:
I am wondering If i got a bad battery,

It charges to 100% 15 seconds after I disconnect it is already at 98% This makes it almost impossible to run a battery reset.(battery calibration app) as I can only initiate a reset when it is at 100% and running off battery. Has anyone else had this issue after the first charge cycle. If so how many charge cycles before the battery act normally,

The first charge cycle during the discharge it was down to 55% after 30mins. then its lasted almost 2 1/2 hours on that 55% at 15% is lasted over an hour. after the 15% nag.
[Android General] msav:
Found the issue with my new battery,

I would keep this in mind if anybody has installed a battery purchased from actablet and has issues now or in the future.

2 of the tabs for the battery were not soldered. the tabs were just folded over and taped. This was causing my tablet to only use one battery. This is why my battery charged really fast and drained really fast.
[Android General] KnieveI:
Hi Msav, are you able to solder the battery yourself?

Thanks

Knievel
[Android General] aaronm13:
Crap, that's not good news msav. Is the battery useless now or where you able to fix it? Mine should hopefully be here any day now from actablet. I don't have a soldering iron so they will have to go back if they are in the same condition.

Is your battery still working Knievel?
[Android General] msav:
OK,

I soldered the 2 unsoldered tabs and reinstalled the battery. gave it a charge overnight, now on my first cycle of the properly assembled battery is looking promising.

1hr= 88%

2hr= 76%

3hr= 52%

4hr= 23%

5hr= 8%

total run time 5hr 54min

I am sure this is a quality control issue as they are probably rushing to assemble these things. I hope you do not have a problem. you have to remove the yellow tape in order to see if the tab is soldered or not you can't tell through the tape.
[Android General] KnieveI:
Hi.

Im glad to hear you could fix it.

Just curious , which rom are using, brightness and any oc ?

[MENTION=330816]aaronm[/MENTION] 13 Yes my battery is fine. I belive the battery itself is of good quality.

After some cycles it feels even better.

Lets hope you get a battery without problems. Then batterylife wont be a issue no more.

Thanks

Knievel
[Android General] msav:
Kasty release version 3.2.1 published 2013/07/29

(V972Core4_v3.2.1_v1.rar) no overclocking

brightness lowest setting. wifi on. Tested streaming via vevo app, live tv.
[Android General] aaronm13:
Just after installing my battery. The difference in quality is unreal. The Onda battery is soft and floppy with no weight but the new one feels so much better. All four points looked to be soldered thankfully. Install took about 30-40 minutes and was nowhere near as tricky as I thought. Hardest part was probably separating the original battery from the screen. Now to charge up and test. Should I leave it plugged in for an extra few hours after the battery shows it's full. Tablet is off too while doing this.
[Android General] msav:
good news. glad your battery was properly soldered.

Once it is charged the battery protection board will turn off the charging of the battery. However if the battery dips at all after a full charge and is still hooked up to the charger, the protection board will top it off, so it may be a good idea to let it sit charging for an extra hour.

I had a hard time dissembling and reassembling and keeping the tablet off. I kept resting it on the table against the buttons and turning it back on. I have also noticed that I am getting some backlight leakage from the bottom of the screen, when turned in landscape mode, so I think the extra thickness of the battery is pressing on the screen a bit. does not bother me too much.
[Android General] aaronm13:
Kept turning mine on too so least I'm not the only one. Really happy with it so far as I got 6 hours 30 mins out of the first charge so hopefully this will go up and maybe hit 7 hours after a few charges. I was using it heavily too, browsing and streaming some sports over the week end. Was getting a little worried at first as it dropped from 100% to 90% at the same rate of 1% a minute but really settled after that. Haven't noticed any backlight leakage but the extra weight is noticeable. Will be great not having to carry a charger around with me now.
[Android General] msav:
I first noticed the back light leakage when the tablet is off and you plug in the charger and the charging graphic comes on. the screen is mostly black and the backlight comes on. if you look at the edges I see white light coming unevenly from the edge. when the tablet is on it is not really noticeable.
[Android General] aaronm13:
Got the backlight leakage too. Must definitely be the slightly thicker battery. Hope it doesn't damage the screen long term.
[Android General] aryanitinkumar:
SOS!!! Batteries for Onda V972

SOS!!!

Can anyone help me find the 12Kmah batteries for Onda V 972??:(

Mistertao & Aliexpress have declined due to new shipment restrictions !! :crying:

Thanks in advance!! :fingers-crossed:
[Android General] aaronm13:
Try actablet.com Very happy with my battery now. Search for Onda V972. They have free shipping too.
[Android General] aryanitinkumar:
Thanks aaronm13!!

Ordered right away & I hope my experience with AC Tablet would be similar to that of yours!!
[Android General] aaronm13:
Hope it works out well for you aryanitinkumar. It's definitely changed my tablet for the better.
[Android General] bdjh:
Hi, can anyone tell me how to open up the tablet? I removed the four screws but after that? I don't want to damage it...
[Android General] msav:
run a thin piece of plastic around the edge between the metal back and the raised edge of the screen. use something like a old credit card or guitar pick. Make sure you remove any sdcard from the tablet first. start from the end without the buttons. then do the bottom and top. do not do this to the end with the buttons or you could break them off. once loose lift out from the side opposite of the buttons like there is a hinge on the button side and then slide the buttons out of the slots. after you have taken it apart a few times you can remove with your fingernail. the first time will require a bit of force to remove.
[Android General] bdjh:
Thanks, that worked.

---------- Post added at 06:29 PM ---------- Previous post was at 05:37 PM ----------

Am I right in cutting of the (protecting?) circuit of the old battery? Did you solder the wires of the new battery directly to the circuit board or use shrinking socks to connect to the two short remaining wires after cutting of the old battery?
[Android General] bdjh:
I got the battery in and working. In order to close the lid properly I removed the bottom-left black holder that keeps the metal sheet down.
[Android General] oodles1916:
Jesus lads, its like a new tablet with the battery swap, I'm getting 6 hours of pretty heavy use out of it after two cycles! Compared to the hour and a half I was getting before! Absolutely bloody delighted :)
[Android General] konchog uma:
noobie questions

Hello, first I would like to say its been great to see this thread and how you all have overcome the issues with the v972. I have read the entire thread, even though my v972, which I am scheduled to receive today, will have firmware 3.2.1, and most of the problems in the first 100 pages don't apply to me. It is great to see this community in action.

I have only begun to own android devices in the last year, and have never rooted or modded one, so am a total noob and appreciate your understanding. I have a question about stock ROM vs mods. I am wondering how much difference there will be between running the tablet with stock ROM 3.2.1, rooted, nova launcher, uninstalled Chinese apps, and maybe modifying prop.build slightly (if necessary, there is nothing i am really dying to do right now, but who knows)... between running the tablet like that, and the mods like kasty or cyanogen. How significantly does performance/battery improve (to the feel of use, not benchmarks)? How much more unstable does the machine become (especially with CM 10.2 4.3.1)? I am not doing anything hardcore with this tab, mostly surfing and reading PDFs, maybe watching some video with MXplayer. You could say I'm a basic user, so not sure if i need a mod. Any comment is helpful, thank you.

I am running Win8.1 x64, can anyone confirm that the instructions at

ht tp://w ww.slatedroid.com/topic/53170-correct-installation-phoenixsuit-usb-drivers-in-win-8/

are all that is needed to use phoenixsuite?

Thank you for your help!
[Android General] BLACKMANTIS:
"No external storage available"

Hello,

Since I installed CM 10.1/10.2 my internal sd doesn't mount. The gallery and camera both says "No external storage available". However everything works fine. It is not a version problem as my device is V2 and I have checked several times before flashing that version. Also everything worked fine with Kasty V32. I would be most grateful for any help. Thanks!
[Android General] konchog uma:
running Windows XP for free on Win8 machines with VirtualBox

ht tp://lifehacker.com/5965889/how-to-run-windows-xp-for-free-in-windows-8

Christian Troy talks about how Win8 users should use an XP machine to flash ROMs via Phoenixsuit. Since I don't have machines anymore that are not Win8, I did some digging and wanted to share this link above. It allows one to use an XP VHD (virtual hard drive) via VirtualBox by Oracle, by extracting the proper file from an executable archive distributed by Microsoft. It will authenticate your machine via GenuineCheck and if you have a valid Win8 liscence, you can download it. No XP license needed. I haven't installed it and used it myself, I received my v972 yesterday evening, and am still priming the battery with a long charge (24 hrs or maybe 36 in this case). I might start working on it tomorrow, I have the day off.

from comments in above link:

"AWESOME. It does work. After you rename the file, open VirtualBox. Create a new virtual machine, give it a name, allocate some RAM, and when it asks to create a virtual hard drive, select the option "use an existing virtual hard drive file". Point it to the VHD file you made, and you're good to go!"

hope this helps!
[Android General] shoppy:
Hello guy's,

Is there a way to impove the WiFi reception on the V972?

Anyone tried anything?

John
[Android General] konchog uma:
bricked!

I installed TWRP on my Onda v972 v2 over factory fw 3.2.1, rooted, and when it rebooted and the menus came up, my touch screen wasn't working. Every time I reboot, it boots into TWRP and I can't get out of it.

a couple notes: i did enable developer options>debugging mode before I did all this, but I can't seem to follow the tutorial here:

ht tp://w ww.arctablet.com/blog/featured/phoenixsuit-flashing-tutorial-onda-v972-v812-allwinner-a31-tablets/

to flash a ROM with Phoenixsuit. I am running win8.1 with Phoenixsuit installed on an XP Virtualbox, and I follow the instructions (holding home, plugging in, short pressing power repeatedly, all w home held down) and i hear a USB connect sound without any boot to TWRP, but Phoenixsuit doesn't recognize it. Virtualbox recognized my other USB devices, so I don't think that's the problem, but not sure. I am trying to track down an XP computer that someone can let me try to flash a sdk3.2 ROM with... aaaaa

Also, in the vids, Phoenixsuit is in english language, but in mine, it is a bunch of squares, and I can not read chinese or load a language pack (it gave me the option to load chinese, how do i change the lang to english??)

Thanks for any help you can provide! I greatly appreciate the support.
[Android General] KnieveI:
Have you tried using a wired mouse to operate twrp without touch screen?

Thanks

Knievel