Database Users

JasJar crashes at 35% battery power

Hello,
I need your help with the following problem:
I have been using my Jasjar for 5 days now and I have a problem with the battery.
As soon as it gets to 35-40% battery power the unit switches off without any notice.
The only way I can turn it on again if I put it on a charger, and than it turns on again like after a soft reset.
I installed the latest ROM from the clubimate but none 3rd party applications.
Please let me know what can be this problem.
Thanks,
Zsolt

same problem here

Hi Ronaldovic,
Have you tried with another battery or just the original?
I was advised to change the original battery as that might be faulty but I couldn't get a new one yet.
Zsolt

For the O2 XDA Exec the battery has a 6 month warranty. You should check the situation with the JJ

battery issues..
I had similar issue and also where on switch on the screen light goes off and back on. This seems to be linked to battery chargin "top-ups" therefore sometimes the supply from the battery is not continously smooth. Try fully draining your battery and charging fully

I have same problem with my Exec. Any solution ??

I buy new battery but...when it gets to 25%, still switch off. So I dont think it's error of battery, may be it's bug of ROM for Exec???

kzs70 said:
Hello,
I need your help with the following problem:
I have been using my Jasjar for 5 days now and I have a problem with the battery.
As soon as it gets to 35-40% battery power the unit switches off without any notice.
The only way I can turn it on again if I put it on a charger, and than it turns on again like after a soft reset.
I installed the latest ROM from the clubimate but none 3rd party applications.
Please let me know what can be this problem.
Thanks,
Zsolt
Click to expand...
Click to collapse
1 month ago I have same problem. I think is not battery.
I make upgrade by all the ROM (JAS JAR, QTEQ, MDA PRO ecc.) but the problem I have not resolution, and 2 week ago my pda (MDA PRO T-Mobile) go in htc warranty.
Sorry for my bad english.

I have also noticed this problem a few days back. My Jasjar switches itself Off when the battery goes down to 22%.
I never used to have this problem when my Jasjar was with the original factory installed ROM version which was 1.13.53 WWE, Radio 1.03, ExtRom 1.13.137 WWE. When this ROM was installed I used to get the first low battery alarm at 20% and when the battery went down to 10% the screen would dim out and the SD card would deactivate, but still the unit would not shut itself out.
I installed the updated ROM when it became available in March which is 1.30.76, Radio 1.09.00 and ExtRom 1.30.164 WWE.
I am not too sure if the problem is linked with this ROM as I usually never allow my battery to run that low. However a few days back when I forgot to charge my battery I noticed this problem. I repeated this deliberately a number of times and each time the Jasjar shuts itself off exactly at 22%.
Just wondering if there are any solutions yet.
Regards

Same here, device just dies @ 26%. Was going to buy a new battery, but that might not resolve it?? *sigh*

RE
This battery issue has been discussed in two other similar threads.
In my case I just changed the default battery to a OEM one and everything works fine :lol:

Isn't the default battery an OEM battery? I'm tempted to buy one of the 1750 mAh batteries off of ebay (original JasJar battery is 1650 mAh) - is that a bad idea?

Try overnight charging of the battery for one or two days..this will solve yr problems... :lol:

Hi,
hard reset to your device, don't forget to get backup contacts, sms and data.

battery issue
I've had similar issues. Screen goes blank when battery low, plug in to charger and all is ok. What I've found is sometimes, not always, the battery screen brightness has gone to 0, but on-mains is set for full brightness. I never changed it, so maybe the device is trying to save power itself.
MNB.

Same here. My Jasjar dies sometimes when the battery is on 60%, 50%, 30%, 20%. etc. If I use the internet or camera or something then it will go dead, but not everytime.
Sometimes I can use anything and it will last till about 10% when the SD Card disables, then I charge it.
Don't know what to do. I don't want to buy a new battery if I'm not sure that is the problem.

Yes the same on my O2 Exec. Crashes at around 32% no matter what. Only remedy is to put it on charging again.
This started after I upgraded to the lastest O2 Rom; prior to that there was no problem whatsoever and I could go down to single digit battery percentages without any issue.
Is it the new ROM? Is there any work around to this malady?
Thanks to all who reply, in advance.
Cheers.

Well judging by the number of threads on the subject this problem is very widespread, check out the threads below:-
Jasjar shut down when battery power remaining is less then 43%
http://forum.xda-developers.com/viewtopic.php?t=51567
XDA crashes at less than 25% power after ROM upgrade
http://forum.xda-developers.com/viewtopic.php?t=47764
My QTEK 9000 (Universal) blacks off at 38% battery power?
http://forum.xda-developers.com/viewtopic.php?t=52353&postdays=0&postorder=asc&start=0
Power button not always working.
http://forum.xda-developers.com/viewtopic.php?t=47535
Poor battery life after ROM upgrade please help
http://forum.xda-developers.com/viewtopic.php?t=54649
perhaps it is heat related?
XDA Exec keeps randomly soft-resetting
http://forum.xda-developers.com/viewtopic.php?t=54066
-----------------------------------------------
So can we say that downgrading does not fix it, or removing certain software combinations?
has anyone actually proved that replacing the battery works or not?

With the issue this widespread (and across carriers) has anyone tried to contact HTC about this? I still have my doubts that this is ROM related, seems more likely to me that many of the initial batch of batteries have gone bad.

My battery is on order with expansy. Expect it in the next 4 to 5 days and will definitely let you all know of my experience with the new battery
Regards

XDA Exec almost drains its battery overnight.

I got an XDA Exec a couple of days ago to replace my XDA IIi.
Although the battery had its full 8 hour initial charge, I am having a problem whereby the battery is almost draining itself overnight. Two nights ago it went from 100% to 8% battery overnight. Last night (a short night for me, 2am to 6am), it went from 95% to 42%.
WiFi is OFF. BlueTooth is OFF. There are no programs running (that I know of). It's NOT waking up at midnight and then failing to switch off.
Any ideas before I return it to O2 as defective?

can only comment on mine.
if I'm at work I turn off the phone function as I get no signal and it constantly looking for a signal hammers the battery.
have you set your exec to turn off after so many min's ?
have you set you back light to a low setting.
I would expect to have to charge it every day.

Make sure you have used the Power Save options and also make sure you did not start the Camera app by accident as I found on my Exec this will drain the battery. Before you go to sleep do a soft reset and then see what happens to the battery (the soft reset will make sure all apps are closed).

If it cant get signal then it'll keep searching and drain the battery.
If you leave it connected to GPRS it uses alot of battery.
Check to see if its switching between GSM and UTMS because there is a weak UTMS signal in the room. I have this problem if i leave it on my bedside table, but if it put it on my desk, just a little higher up, it has enough UTMS signal to not switch between the two.
If its a case of not having enough signal then you'll either need to leave it plugged in over night or turn on flight mode.
HTH.
JAmes

Remember that just cos you close a program it doesn't mean it's not running anymore. Check in start-settings-system-memory-running programs to see what's running in the background. I find that if Internet expolrer is running (even if it's not visible) it absolutely kills the battery. The same goes for IM/chat programs but I bet it's Internet explorer...

ps - not sure how experienced you are - to exit a program from the place I describe above - click on the program and press stop.

I had this exact problem when I upgraded to the latest ROM version. Try updating the Radio ROM to version 1.06 (its available on this forum somewhere). This fixed my problem and I'm sure it will fix yours as well.

graybo said:
I had this exact problem when I upgraded to the latest ROM version. Try updating the Radio ROM to version 1.06 (its available on this forum somewhere). This fixed my problem and I'm sure it will fix yours as well.
Click to expand...
Click to collapse
I agree ... this issue started with 1.08 and higher

Anyone elses Battery always losing power?

My battery loses 33% every night, it is switched off wih all of the phone, wifi, bluetooth switched off. Is this not a bit much to lose every night? Could this be a problem with my battery? Any help appreciated.
Thanks
Euan

Yes that's not right at all, I don't turn my phone radio off and still will only loose a few percent overnight. Are there any application left running, reminders or alarms that are waking the device up?
It might be more of an issue of the callibration of the battery monitor. Have you tried allowing a full discharge then a full recharge and see if that fixes what is reported, otherwise consider that you have a defective battery. Is it a new device or second hand?

this is an issue with Radio 1.08 and 1.09

As Gajet says check apps running in the background, the Camera app in my experience will drain your battery

I don't pay particular attention to what's running on the phone overnight now, other than I turn the wireless mode on so I don't get rung at 3am! Can't say I use the camera that much and upon looking at the phone in the morning, I'd be surprised if 5% has gone during the night.
I would certainly check that the cam app is closed before you leave it overnight. I presume nothing daft like Wi-Fi or a GPRS/3G connection is left running?
Cheers
Ant
EDIT - on the GPRS/3G note...do you leave the phone ON overnight and do you live on a GSM/3G signal boundary? I know that going back and forth into GSM/UTMS can cause battery drain as it's flipping between the two standards.

Biso007 said:
this is an issue with Radio 1.08 and 1.09
Click to expand...
Click to collapse
I am using radio version 1.09.00 but no battery power loss on mine.

1. Check if your previously used application(s) are not sitting in the ""Start->Settings->System(tab)->Memory->Running programs (tab)"" make sure there isn't any application sitting-down and sucking the battery power.
2. Check if your bluetooth is not continously on, bcs it really sucks the battery.
3. Check if your WiFi is not continously on, bcs this also drain the battery.
Also try "Spb Pocket Plus", this software has got a nice feature which close the application completely once you tap the "X" cross button.
Sidd
http://www.spbsoftwarehouse.com/products/pocketplus/?en

TMobile MDA Problem! Help!

Can someone please help me? I just bought a used MDA but it has several problems with it. Here are the problems:
1) The phone has been damaged which causes it to not switch the keyboard light or backlight off at times, and also, when returning from sleep or standby, unit reacts as if the dsown button is being pressed and continues to move down until the d-pad is pressed.
2) Phone depletes both the included battery, the spare battery AND another TESTED AND WORKING MDA battery much faster than normal(1% in 2 minutes or less while idle).
Does anyone have any ideas what could be wrong? Its not Windows because I already updated the version twice and it didnt fix the problem.

BklynHitman88 said:
Can someone please help me? I just bought a used MDA but it has several problems with it. Here are the problems:
1) The phone has been damaged which causes it to not switch the keyboard light or backlight off at times, and also, when returning from sleep or standby, unit reacts as if the dsown button is being pressed and continues to move down until the d-pad is pressed.
2) Phone depletes both the included battery, the spare battery AND another TESTED AND WORKING MDA battery much faster than normal(1% in 2 minutes or less while idle).
Does anyone have any ideas what could be wrong? Its not Windows because I already updated the version twice and it didnt fix the problem.
Click to expand...
Click to collapse
What ROM are you using?
What are your IPL/SPL?
What apps do you have installed?
Do you have your IR, bluetooth, Wi-Fi, or any other battery draining resources turned on?
If you did in fact do a ROM upgrade did you flash to a full carrier rom after your CID unlock prior to flashing to a custom rom?
Does the battery in fact go dead when it hits 0%?
Was your battery at 100% when you did your last flash?
When was the last time you calibrated your battery (let it fully discharge then recharge overnight before using device again)?

OK... I'm no expert but i'll answer these as accurately as possible.
If by ROM you mean windows version... then I just updated to the latest version from TMobile.com
I'm not sure what IPL/SPL is.
No apps are installed.
No WiFi, Bluetooth, etc.
Phone was not unlocked.
Battery has never hit 0% so I'm not sure. Will test that immediately.
Battery was at 65% and charging when last flashed.
Never calibrated the battery.
I'm sorry if any of these details are vague or inaccurate but, as I said, I am new to this. Thanks for any help in advance!!!

Well I'm new to this but I successfully CID and SIM unlocked my phone and now I'm running Titanium V2 (WM6) So I can at least tell you if you updated to the current tmobile rom your running IPL/SPL 2.26 Hope this helps.

BklynHitman88 said:
OK... I'm no expert but i'll answer these as accurately as possible.
If by ROM you mean windows version... then I just updated to the latest version from TMobile.com
I'm not sure what IPL/SPL is.
No apps are installed.
No WiFi, Bluetooth, etc.
Phone was not unlocked.
Battery has never hit 0% so I'm not sure. Will test that immediately.
Battery was at 65% and charging when last flashed.
Never calibrated the battery.
I'm sorry if any of these details are vague or inaccurate but, as I said, I am new to this. Thanks for any help in advance!!!
Click to expand...
Click to collapse
When you turn on the phone do you see a screen that says IPL 2.26 wiht SPL 2.26 right under it? If you don't then you may have a problem. You said you used a rom from T-Mobile.com so you should have the latest released WM5 build from them and this is good provided the flash was 100% successful.
2 things to try for keyboard light and battery drain:
1. Start -> Settings-> Personal -> Buttons -> Backlight tab
toggle this check box. (unchecked should light keyboard after first key press, checked would light keyboard after first key press only if sensor determines not enough light
2. Start -> Settings -> Connections -> Beam
Make sure the Receive all incoming beams box is unchecked. Otherwise your IR will always be on and looking for signals. Most Comm Managers no longer include the button to turn this off/on in Comm Manager. This can be a big cause of battery drain especially if you are moving around active IR signals that your phone can see quite frequently.
Other than that battery life tends to stabilize over time after the battery is calibrated. Of course you can always try a new radio rom as well as the one that comes with the rom you installed might be excessively searching for signal or switching between two competing towers as the signal strengths vary. The best radio for most users regardless of rom is the T-Mobile UK radio 2.19.11 (I am pretty sure there is a link to it in the wiki) You may have to CID unlock or use the shelltool to flash it though.
Probably the biggest bang for the buck is the radio. I would switch to the 2.19 radio, this is most likely your issue (as far as battery life goes) Of course each person's experience is different so you may have to try multiple radios to find which works the best in your particular coverage area.
Hope this helps.

Thanks for all the quick replies. I'll try the battery saving tips ASAP.
Does anyone have any idea why t could be geting stuck in a downward loop every time it wakes up?

Battery issue

I have read some threads about htc devices and their battery- life and behaviour and i didn't really read about the problem i'm having.
The device (topaz) is about 2 weeks old and i'm fairly satisfied with the batteryperformance. Playing with it for about ten minutes would make my battery drop about 5% which is very reasonable.
But lately - speaking of 3 days - i have this weird issue; the battery drains like hell; when i send 1 text message the device can drop 5-6%; which is quite much and absolutely a heavy fall suddenly, compared to what it used to be.
Also, when charging the battery, from 0-70% goes very fast, like about 10 minutes. The other 30% go slow.
I configure the device like this:
- GSM mode
- No wifi
- No bluetooth
- no data connection
System: beam is switched off, data only goes through 'my work network' and band is switched to GSM (which means no 3G - again)
My experience happens when i have no other applications (like GPS) running, and I also have G-light enabled (polling 100ms, mostly 40% backlight, and i have this running since day 1)
I did switch my rom quite often; but I always performed hard-reset and battery calibration afterwards.
installed in current order:
- Touch InCall
- Tomtom navigator
- ageye g-light
- TD2 tools (large cache settings)
- Taskbaricon 6.5.3
- Zenyee disable HTC messaging
Roms used: Dutty R6-R7
Radio: 4.49.25.17, 4.49.25.57

There are some rather aggressively power hungry ROMs and the culprit is mainly Touch flow/HTC sense.
Turn it off for a test and see if there is a difference!

Well, I do experience similar problem. My battery charges for 70% very fast and at 70% it seems to stay forever. (whole night) I haven't done anything to my phone yet. I have it just like it came from T-Mobile. I didn't install any additional application besides sbp backup. I do keep my memory running at around 40% all the time. I have Win6.1 and TF3D on. TF3D is T-Mobile customed, so not sure what manila it is based on.
Please, anybody, do you have other suggestion as what the problem may be?
I want to flash the ROM, yet with these issues I am still reconsidering. If it is faulty battery I would rather go and exchange it as it is still in warranty.
Thanks in advance for your help.
_______________________________________________________
T-Mobile Compact V
ROM: 1.42.117.2 (50454) WWE
Radio: 3.45.25.216
P.S.> If anybody can help me to extract my Radio and back it up I would appreciate. Thanks.

does anyone know a link to how to keep the battery in tip-top shape. I know there is a post somewhere on xda, but really don't want to look over about 1300 posts to find that. Can someone help me?

georgeono said:
does anyone know a link to how to keep the battery in tip-top shape. I know there is a post somewhere on xda, but really don't want to look over about 1300 posts to find that. Can someone help me?
Click to expand...
Click to collapse
"Battery calibration is simply done by running it down completely until the phone shuts off by itself. Then remove the battery, wait 10 seconds, insert again, repeat. If the phone shuts off again in less than a few minutes you're done. Remove battery and hold power button for 1 minute, then insert battery. Don't switch on the phone. Plug the charger and recharge the battery fully until the green light is on. Then remove battery, hold power button for few seconds, insert it and switch on the phone..."

thanks for the tip. will try that. Still, a link for battery tips? I remember a post where a member explained how the battery works I am interested in knowing if it is better to drain the battery or when the battery is lo/very low it would be advised to recharge ...

georgeono said:
thanks for the tip. will try that. Still, a link for battery tips? I remember a post where a member explained how the battery works I am interested in knowing if it is better to drain the battery or when the battery is lo/very low it would be advised to recharge ...
Click to expand...
Click to collapse
Here is a link on the Wiki regarding battery consumption.
With Li-Ion batteries it is not recommended to discharge completely as it is with NiCad every 30 cycles.
If you have flashed another ROM that has changed your radio ROM, i.e. you've flashed an official ROM, the Radio ROM will be your culprit for increased battery drain. A weaker radio will constantly have to search for the best network and thus use more battery.
For a few power saving tips;
1. Setup sync times instead of pushing emails.
2. Make sure your data disconnects after use (a few programs out there for that)
3. Set your power settings to turn device off at select times of inactivity
4. Increase your file cache size.
5. Enable auto screen lock

how do you enable auto screen lock? I'd rather not use TD2 Tools. is there any other way?