Yesterday I bought a S6000L tablet and I like it so far.
After having it standby for one night I have the following questions/observations:
•During standby (8 hours, WiFi off) the S6000 MT8389 will not enter deep sleep and stays on 1200mHz, is this normal behaviour? (checked with CPU Spy).
•Found a similar experience with the deep sleep here on XDA (other Lenovo model, same chipset): http://forum.xda-developers.com/lenovo-a3000/development/rom-lenovo-ideatab-a3000-h-call-t2441135/page23 . This was eventually "cured" by a custom rom/kernel, so it seems that deep sleep is possible.
•I checked network connectivity (by pinging the S6000) and WiFi is disconnecting as it should when screen off (have this set under advanced WiFi settings). WiFi always on could be a source for no deep sleep.
•The battery usage was about 4% in 8 hours so 0,5% per hour seems reasonable. I just don't understand how this is possible with no deep sleep.
Maybe I'm to anal by this deep sleep according to the 0,5% drainage per hour but I'm thinking it could be better .
ps We need an own Idea forum!
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I never fixed my SOD problem on my TF101. I'm running AOKP Milestone 6 and Guevor's Kernel-ICS-V23-OC1700-fb-AOKP_690
I initially just used that Wakelock app to prevent it from going into deep sleep, but I was highly dissatisfied with the battery life.
What I started doing now is using this app: https://play.google.com/store/apps/details?id=com.easy.battery.saver&hl=en
I found that my TF101 does fine when it goes into deep sleep, but not if it's deep sleep for too long of a time period. With the battery saver app, I have it customized so that when the screen is off, the wifi will turn off as well. The trick is also setting it up so that the wifi will enable wifi again every fifteen minutes for thirty seconds. That brings the TF101 out of deep sleep for a little bit, lets it sync gmail/FB/etc., and then go back to deep sleep.
The benefit of this is that it prevents SOD while still maintaining decent battery life by allowing your TF101 to at least go into deep sleep once in a while instead of keeping it awake 24/7. I tried playing around with 30 minute intervals for the wifi turning on/off but I had a SOD. 15 minutes seems to be working!
I have Problem With Standby Time .....My Battery After 12 Hours Standby Have 50% Drop.....I install Stock Rom But Itsnt Fix...Please Help Me:crying:
( I do wipe cash and wipe battey and calibrate)
new ugsrii
how long your battery used? if >2-year heavy use, could well be battery degrade. no solution except for buying a new one. (symptom: battery charge sudden drop, like 50% -> 20%).
nostupidthing said:
how long your battery used? if >2-year heavy use, could well be battery degrade. no solution except for buying a new one. (symptom: battery charge sudden drop, like 50% -> 20%).
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For me battery drops can sometimes happen when I don't charge battery to 100% - so it's good idea to always charge to full.
First of all you should check if your battery is going into deep sleep mode. You can do that by installing Bettery Battery Stats, and leaving your phone idle with the screen off for some time. You should read the forum post to understand how it works. If after leaving your phone on "stand-by" you realize that it's not going into Deep Sleep mode, then you should find out what is keeping your phone awake.
I used to have the same situation as you, and it turned out that I had set the WiFi Sleep Policy in Viber to override the Roms setting, and consequently leaving my WiFi always on (which prevents your phone from sleeping). After fixing the issue in Viber my phone now turns WiFi off after 15 minutes of leaving my phone idle.
Now unless your battery is actually dying on you, I'm sure you can get a better battery life. I am using Tasker to program my phone to turn WiFi off when I turn off my screen, and then turn it on for 1 minute every 15 minutes during the day, and at nights it does the same thing but with an interval of 1 hour and half. There are apps in the Play Store that do this too, I've tried these both, and they work as they should, and they can even control your Data connection
Green power
Deep Sleep Battery Saver
All in all I've been losing an average of 1.7% during the day, and 0.7% and 1.2% per night. My battery currently lasts about 2 days on one charge. This is all assuming it is actually your WiFi that's preventing your phone from sleeping, I just figured I'd share my experience in case it is in fact that; the important thing being that you could probably get the same results as I have (or even better, considering your battery isn't busted) if your phone is actually going into Deep Sleep.
Hi, I don't know what to do, I'm running 4.2.1 stock on my 32 3G N7. The tablet cannot go in deep sleep because of constant baseband_xmm_power kernel wakelocks. I tried factory reset, but the problem persists. For example with 5h the screen off, there are >4 hours partial kernel wakelocks.
Same here and I'm sick of it. Sometimes my Nexus manages to enter deep sleep but I still see a significant percentage of that kernel wakelock. It also happens that wifi won't shut off on sleep, and I'm talking about when it truly enters deep sleep, and it's correctly configured.
I have the same problem. Battery life is really poor due to this. My LP core is running at full tilt for at least half the time the screen is off, preventing deep sleep.
I found a suggestion that turning on flight mode and then rebooting might help, but I think the problem recurs pretty quickly if not immediately.
Saw a post that said it's due to the modem switching power levels when radio reception is poor. That would definitely make sense in my case — 3G reception fluctuates a lot at home and I am constantly losing connection. I have removed the SIM and will check it in the morning to see if there's any improvement. (Using BetterBatteryStats).
Hope this bug gets fixed in the next update. Almost thinking I should have got the vanilla wifi model
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EDIT: Removing SIM overnight doesn't help. Over the course of 8h screen off, baseband_xmm_power was active for 7h 46m!
I'm having the same problem, only when mobile reception is poor. Unfortunately, my mobile coverage at home is currently near-zero, which makes using my tablet as an alarm clock a dicey proposition unless I plug it in overnight.
Hi Guys,
I am wondering is there any of you having same issue as me ?
I am using TILAPIA device and suffering from around 5% / H battery drain during idle (all off and in airplane mode)
strangely, BBS report is showing my device is in sleep mode for more than 90% of the time
as per now what I can think of is to set tasker profile to shut down the device when screen is off for 5 mins
but I am still curious why and what is the cause of battery drain while the device is actually in "sleep mode"
Thank you
dicxz80 said:
Hi Guys,
I am wondering is there any of you having same issue as me ?
I am using TILAPIA device and suffering from around 5% / H battery drain during idle (all off and in airplane mode)
strangely, BBS report is showing my device is in sleep mode for more than 90% of the time
as per now what I can think of is to set tasker profile to shut down the device when screen is off for 5 mins
but I am still curious why and what is the cause of battery drain while the device is actually in "sleep mode"
Thank you
Click to expand...
Click to collapse
Hi, I have same problem. Asking if anyone can see something weird in BBS dump in post here
P.S. Concluded that my case is totally same as described here
P7000 has a reasonable battery but it just refuses to go to deep sleep with cpu working non-stop and wakelock actives 24/7. Has anyone successfully make it goes into deep sleep to conserve and save battery?
Please share your findings. Thanks.