yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Q&A, Help & Troubleshooting] fossean:
Thanks for these screenshots. I've tried that but it didn't help at all on my device. I wonder if it could be caused by the poor mobile signal which keeps dropping out. But switching to airplane mode (& rebooting) is also ineffective at reducing baseband_xmm_power kernel wakelock.

Just one question — when you say you 'changed to manual mobile network selection', I presume you mean that you allow the scan for network operators to complete, then just manually tap on your operator (3 UK, in my case), rather than tapping on 'Choose automatically/Automatically choose preferred network'. I'm worried that I might be missing something really obvious!

(Btw, also running paranoid android 2.99-9.5)
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
just that. tapping the operator.

i mostly just use the tablet in airplane mode with wifi. still had the drain before switching to manual select. will try and switch back to auto so i can confirm this was the root cause.
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
confirmed auto network selection as the cause for high baseband_xmm_power battery drain. at least on my n7 3g.

changed back to manual and it's gone again :p
[Nexus 7 Q&A, Help & Troubleshooting] fossean:
Still no success here. Have tried everything that has been suggested; manual network selection, radio off, airplane mode, airplane mode followed by reboot. Also tested on stock/custom kernel.

Reading around, I think it may be caused by the poor network reception here. Somehow it causes the modem power to endlessly cycle.
[Nexus 7 Q&A, Help & Troubleshooting] ronime:
Hmmm...

I have very intermittent reception here as well. My wife's Android phone is on the same network (O2) and loss of signal is a great problem for her as well - "Emergency calls only" on a regular basis.
[Nexus 7 Q&A, Help & Troubleshooting] gizmo2501:
Surely it can't be a problem with signal because some of us are having it with no SIM card inserted and also when on airplane mode with WiFi on. Perhaps its a WiFi issues because I don't think I got it with WiFi off.

---------- Post added at 01:33 AM ---------- Previous post was at 01:12 AM ----------

Have started a thread on the Google product forum. Please star and reply! Remember to star!

http://code.google.com/p/android/issues/detail?id=42993&thanks=42993&ts=1358724689
[Nexus 7 Q&A, Help & Troubleshooting] hiluke:
So I don't have the SIM card in but still tried to set the Network manually. It said it could not register on network (since no SIM), but I thought that may have been enough.

When off Airplane mode, I get a notification saying unable to register on network (the one I selected), so I think I have now manually selected the network, so its not scanning for any network. I still get the baseband_xmm_power kernel wakelock though.

It might be scanning for networks, but manually selecting it means it connects straight away and reduces the need to scan for anything other than the one you have selected.

Because I don't have a SIM in, I think it still scans for the manually selected network, cannot connect, and repeats.

Still strange that it does this on Airplane mode, unless as the previous poster suggested, it has something to do with having the WiFi enabled.

I'm stock 4.2.1, stock kernel, stock radio, rooted, unlocked bootloader.
[Nexus 7 Q&A, Help & Troubleshooting] ronime:
You will still get the baseband_xmm_power wakelock, the important aspect is that the total time for this wakelock is insignificant compared to total time since charged and that this wakelock is not preventing deep sleep from occurring.

On my N7 at the moment, BBS is currently showing over 23m of usage for baseband_xmm_power but more importantly I have 1d 22h of deep sleep state out of a total time since charged of 2d 1h.

It seems that people are throwing all sorts of scenarios in here. Just to confirm what definitely works for me:

Stock 4..2.1 ROM (OTA update)

Not rooted or any other hacks

O2 3G SIM inserted

Data network enabled

WiFi enabled

All account syncs disabled (Google and Skype in my case)

Aeroplane mode enabled before sending the N7 to sleep overnight or for other long periods when it will not be used

Aeroplane mode disabled when I actually want to use the N7

---------- Post added at 10:42 AM ---------- Previous post was at 10:21 AM ----------

Nice one! ;)

Starred and commented.
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
+1 :D
[Nexus 7 Q&A, Help & Troubleshooting] radziop:
Odp: Battery drain by baseband_xmm_power

+1

I ve tried manually select network. It's a lit tle bit better but still I SE this issue.

Wysyłane z mojego Nexus 7 za pomocą Tapatalk 2
[Nexus 7 Q&A, Help & Troubleshooting] fossean:
I've been trying to narrow down the possible causes of this.

I installed a Grouper rom (PA 2.99 PIE 2) in order to eliminate 3G driver issues from the equation. This made no difference, still 90%+ awake during screen off due to kernel wakelock from baseband_xmm_power.

Next I ran the device with no apps installed (except for CPUSpy & BetterBatteryStats) and used Titanium to freeze Google Currents which was installed as a system app. Again, problem persists.

I reckon it could be an issue with my router. I had the N7 assigned to a static IP; changed to DHCP, no change. For the record, my router is a Sky Sagemcom F@ST2504n.

Lastly, I've noticed a big short term increase in deep sleep time doing the following, but am currently still testing: Go to Settings>WiFi>Options>Advanced and uncheck/re-check the box for 'Network notification (notify me when an open network is available)'.

Update: doesn't help at all.

Starting to think I'm wasting my time and this may be a hardware problem.
[Nexus 7 Q&A, Help & Troubleshooting] amircesc4:
Deleted
[Nexus 7 Q&A, Help & Troubleshooting] gizmo2501:
4.2.2 has not fixed this issue

Sadly, 4.2.2 has not fixed this problem. Is there any way we can get Google to notice this other than on the http://code.google.com/p/android/issues/detail?id=42993 page?
[Nexus 7 Q&A, Help & Troubleshooting] hiluke:
This is getting extremely frustrating.

I was losing 1.8% per hour over the last couple of days of no use.

I hadn't touched the tablet since fully charging and leaving on for 1 day, 7.5 hours.

Expected to pick this up and start using it, but only had 43% battery left.

Google advertise 300hrs battery life on standby, which is 0.33% per hour battery usage.

After 31.5hrs, I would have expected this to still have 80%+.

Some days I might leave it for the same amount of time, and come back with very little battery use. baseband_xmm_power may have hardly touched the wakelock, and I am good to use it. Other times, like yesterday, I have huge battery use.

I don't know if its the kernel or the radio or the ROM causing it, but even with all of these updated when upgrading from 4.2.1 to 4.2.2, the issue remains.

Has anyone found a kernel/radio where this is not a problem?
[Nexus 7 Q&A, Help & Troubleshooting] gizmo2501:
It's definitely WiFi-related

Well, I am 99% certain that this only happens when I use WiFi. If I turn on the tablet and do not turn on WiFi during the time it is on, then I do not get this issue. As soon as I turn on WiFi I get the problem, even if I turn off the WiFi. To get rid of the problem I have to turn off the tablet, then turn it back on and not turn on WiFi. (PS, I get my internet by using bluetooth hotspot from my phone.)

I have another theory following this - maybe people can keep an eye out for it - it seems to happen only if I use WiFi and then lose the connection before disabling. I.e., if I turn on WiFi and then turn it off before it dropping due to bad signal, then I don't SEEM to get the problem. Not totally sure on this, so would appreciate more eyes on this theory.

In any regards, it's definitely WiFi-related.

Remember to star on the Google page!
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
seems like the issue is finally getting some attention:

http://androidheadlines.com/2013/03...attery-drain-problems-on-your-nexus-7-3g.html
[Nexus 7 Q&A, Help & Troubleshooting] radziop:
I think that it is good idea to check if there is pattern (serial number or settings / kernel)?

Can you add some data here:

https://docs.google.com/spreadsheet/ccc?key=0AluN89JI5PKZdExqTnZFSnhVMnNoRGpoUXI4T3FVNEE&usp=sharing

Please feel free to add / edit columns headers ;)
[Nexus 7 Q&A, Help & Troubleshooting] hkultraman:
I am one of the N7 32G 3G users who suffer this annoying baseband_xmm_power wakelock issue. How can we report to Google and got their attention?

How can Google selling such a problematic device?

Disappointed.
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
you can reply and star this thread created by gizmo2501:
[Nexus 7 Q&A, Help & Troubleshooting] hkultraman:
i have already done it 3 weeks ago
[Nexus 7 Q&A, Help & Troubleshooting] gizmo2501:
Started a thread on Google Product Forums

Hi all,

I've now started a thread on the Google Product Forums. People seem to get more responses from Google there, so hopefully this will get a response from them. Please comment on there, too, so we can drum up some interest!

The link is https://productforums.google.com/forum/#!msg/mobile/6BMhGQtI79Q/QYPZqibz2FgJ .
[Nexus 7 Q&A, Help & Troubleshooting] phd5:
I have same problem (battery drain 1% per hour), but only on version 4.2.2 (both Stock and Cook Rom). When I back to 4.2.1, battery is OK, 1% per 2 hours.
[Nexus 7 Q&A, Help & Troubleshooting] phd5:
This works for me. I turn on airplane mode, reboot, and then battery is OK (0,3% per hour). Then I turn off airplane mode, turn on WIFI and using it OK until now (9 hours)

Using Paranoidandroid 3.10 (4.2.2) for Nexus 7 3G
[Nexus 7 Q&A, Help & Troubleshooting] flaviocc:
This problem is annoying, appears so randomly without any pattern.

Yesterday my screen was switched off at 15PM. I turned on again at 0H, the process "baseband_xmm_power" was there, running and not letting the N7 go into deep sleep.

Result: consumed all my battery dropped from 68% to 15% because of it.

No SIMcard. Phone functions turn off by an workaround: use app hiddens menus to access the function to turn off radio completly. But....didn´t help...
[Nexus 7 Q&A, Help & Troubleshooting] DiegoMedia:
Is there any solution for that problem? I don't use my nexus anymore because it. I'm in airplane mode, and I can get my N7 into deep sleep only if I reboot it after being in network. It's very annoying.
[Nexus 7 Q&A, Help & Troubleshooting] =jon=:
There's a supposed solution:

https://code.google.com/p/android/issues/detail?id=42993#c130

(post #130) - however it's a kernel patch so the devs have to implement it...
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
already testing with franco's kernel :D

let's see how it goes ...
[Nexus 7 Q&A, Help & Troubleshooting] =jon=:
Self compiled? Doesn't seem to be mentioned in the Franco thread...

Let us know how it goes :) As a workaround if you leave the radio enabled, but disable 3g and the data connection it seems to stop the wakelock, but you still get a small amount of drain from the radio still being powered up...
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
no excessive drain so far ... with franco kernel r56.

since the bug only pops up randomly i will keep an eye on it.
[Nexus 7 Q&A, Help & Troubleshooting] al3x1393:
can this kernel be used on N7 3G?
[Nexus 7 Q&A, Help & Troubleshooting] nuumuun:
that's what i'm doing. so, yes! :D
[Nexus 7 Q&A, Help & Troubleshooting] =jon=:
Same here, so yes. It doesn't entirely fix the drain, but it helps a LOT - tablet has been on (but not used much) for 8 days 6 hours so far, the baseband wakelock has kept it awake for approx 5h of that - 2.7%. Before it would have been closer to 80-90%...
[Nexus 7 Q&A, Help & Troubleshooting] kEvinErd:
Agreed. Françokernel does reduces the baseband xmm power wakelock significantly.
[Nexus 7 Q&A, Help & Troubleshooting] flaviocc:
Trinity kernel do the same. Reduce the wakelock.
[Nexus 7 Q&A, Help & Troubleshooting] ucf15:
Which version? I'd like to give it a spin.

Thanks.

Sent from my submarine
[Nexus 7 Q&A, Help & Troubleshooting] flaviocc:
Hi !

running Alpha 3 ! No problems, no reboots....everything fine !
[Nexus 7 Q&A, Help & Troubleshooting] daseth007:
does this affect al 3g 2012 Nexus devices?

Is this problem specific to all 2012 3G devices? Google is about to send me another tablet and I would like to know if there is any chance that a different device will solve the problems described here (baseband xmm battery drain)
[Nexus 7 Q&A, Help & Troubleshooting] Zecanilis:
Nobody is talking about this anymore?

Is there a perm solution?
[Nexus 7 Q&A, Help & Troubleshooting] jfmcbrayer:
According to the developer at Google who worked on it, it doesn't seem to affect 4.3 AOSP builds. It may still affect Google/ASUS 4.3 builds, but I haven't seen it to the extent I used to. I still see baseband_xmm_power wakelocks being held, for example, for 2 out of 8 hours overnight. But not for 8 hours like it used to. And airplane mode does now keep it from holding the lock, whereas it didn't used to.
[Nexus 7 Q&A, Help & Troubleshooting] Zecanilis:
I'm using slimbean 1,8 and it has the same problem.

I will check on the dev thread
[Nexus 7 Q&A, Help & Troubleshooting] daseth007:
can anyone confirm if the wakelock is still present in Android 4.4 kitkat?
[Nexus 7 Q&A, Help & Troubleshooting] radziop:
I was using Franco Kernel with android 4.3.x

Unfortunately it is not ready for 4.4 and on stock rom / kernel this wakelock is still present in Android 4.4 (newest version flashed from factory image)
[Nexus 7 Q&A, Help & Troubleshooting] dicxz80:
currently my Tilapia is using stock ROM and Kernel 4.4 and suffering from >5% / hr battery drain during sleep (not power off) in airplane mode
[Nexus 7 Q&A, Help & Troubleshooting] DalmatHR:
Android 4.4 kitkat - same problem :(
[Nexus 7 Q&A, Help & Troubleshooting] jfmcbrayer:
There is a Franco Kernel for 4.4 now, if you want to try that.

However...the fix that Franco put in his kernel was also added to the stock kernel as of 4.3. Franco and some other custom kernel developers just included it earlier (while 4.2 was the newest).

I've been running stock + some cherry-picked patches since 4.3, and I do occasionally get excessive overnight drain from baseband_xmm_power wakelocks, but only occasionally, and not in airplane mode.
[Nexus 7 Q&A, Help & Troubleshooting] radziop:
Yesterday I've installed franco kernel #46 on my N7 and it is much, much better. I didn't see any baseband_xmm_power wake lock ;)
[Nexus 7 Q&A, Help & Troubleshooting] williamlaw:
fanco r46 on 4.4.2 ???
[Nexus 7 Q&A, Help & Troubleshooting] kkchance:
fanco r77@ stock 4.4.2 same issue, sigh...
[Nexus 7 Q&A, Help & Troubleshooting] jfmcbrayer:
If anyone would like to try an experiment, I have posted a kernel under this thread. The kernel in the a20 version includes a patch I wrote that completely removes the baseband_xmm_power wakelock.

This may very well be a bad idea, and I expect it to have some negative consequences -- possibly dropped connections when the screen is off, or failure to restart the cellular modem after deep sleep, requiring a reboot. However, after a couple days of trying it, I haven't experienced any of those things. I also can't guarantee power savings -- it may be that the baseband_xmm_power wakelock being held is a symptom of the problem rather than the cause, though if it is, not having it should help you debug the real issue.

Anyway, if you're feeling adventurous, give it a try, and let me know, either on this thread or that one, how it goes for you.
[Nexus 7 Q&A, Help & Troubleshooting] jfmcbrayer:
Just a quick update. I've been using a custom kernel with the baseband_xmm_power wakelock removed for a few weeks now, and haven't run into any problems. No one else has reported any on my development thread. So if you are suffering from battery drain by baseband_xmm_power, you might want to try this kernel. The latest versions should work on most ROMs.
[Nexus 7 Q&A, Help & Troubleshooting] Totopcn:
thank you very much!I want to know if it's suitable for 4.4.4?

ps:this problem annhas annoyed me for 2 years,well played Google!
[Nexus 7 Q&A, Help & Troubleshooting] jfmcbrayer:
Yes, I am using it on 4.4.
[Nexus 7 Q&A, Help & Troubleshooting] pirast:
massive baseband_xmm_power wakelock battery drain in flight mode still with 5.0.2 and also with latest slimkat. I suppose it's caused by some proprietary component, and as there is no real way to contact Google and as all the other bug reports have been marked as "obsolete", I created a new one: https://code.google.com/p/android/issues/detail?id=161409

But let's be honest, there's not much hope.
[Nexus 7 Q&A, Help & Troubleshooting] saldirai:
same with 5.1. This thing is killing me. We are literally forced to use a custom rom/kernel.
[Nexus 7 Q&A, Help & Troubleshooting] pesca:
tl;dr: Android 5.1.1 does not fix Nexus 7 2012 GSM wakelock (baseband_xmm_power) issue.

It seems to be related to Wifi and/or polling the modem chip and/or Google Services.

Turning on airplane mode

and restarting

(and NOT turning on Wifi) may prevent the wakelock.

Deleting your Google Account (even with wifi on / airplane mode off) may prevent the wakelock (you lose Google services).

I have just flashed Android 5.1.1 factory image on my N7-2012-3G, wiping everything in the process.

Went through initial configuration (Wifi, Google account, do not restore backups). No SIM inserted.

Turned the screen off and left it untouched for a many hours.

The screenshot is attached in the end (it's in Portuguese, sorry).

For the first 10-15h, it was in deep sleep (I turned the screen on a few times for a few seconds, just to check).

Then, some hours later, it started a wakelock and stayed active from then on. One thing I did note is,

when I turned the screen on for the first time after the wakelock, it had a notification for new e-mails

on GMail.

Some people noted a connection between this issue and gmail and/or google services

.

Later (not pictured in the screenshot), N7 now rooted, I put it in airplane (AP) mode, turned wifi on.

In BetterBatteryStats (BBS), the wakelock seemed to disapear. But after using the tablet lightly,

hours later, the wakelock reapeared. Turned Wifi off, the wakelock stayed.

Then, I turned wifi on, AP mode on and then off, but did NOT turn wifi back on (as if using

the tablet normally and then just entering AP mode). The wakelock disapeared* again.

Turned on wifi, the wakelock reapeared. (about an hour each mode).

Then I disabled all syncing on my Google account, the wifi still on / AP mode on.

The baseband wakelock seemed bigger!

Then I deleted my Google Account, AP mode off, Wifi on (like in "normal" use).

The wakelock all but disapeared*.

I'll try testing for a longer time and other kernel, and will post results here.

EDIT1: after 1 or 2 hours, after deleting all Google accounts, the wakelock reapeared. I'll do some more tests.

EDIT2: after 1 or 2 hours, after turning on airplane mode, the wakelock reapeared. But rebooting after this, the tablet did NOT went to a wakelock (8 hours and counting).
[Nexus 7 Q&A, Help & Troubleshooting] saldirai:
that is just unbeliveable. after so many updates google still ignores it.
[Nexus 7 Q&A, Help & Troubleshooting] DaBe77:
I had the same problem with the baseband_xmm_power issue.

Than i flashed this kernelhttp://xdaforums.com/showthread.php?t=2662639 an the problem was gone. :)
[Nexus 7 Q&A, Help & Troubleshooting] saldirai:
I have unlocked, nonroot stock NAKASIG, i suppose i can flash it with custom recovery with no problems?
[Nexus 7 Q&A, Help & Troubleshooting] jfmcbrayer:
Yes, that's correct.
[Nexus 7 Q&A, Help & Troubleshooting] saldirai:
flashed recovery, flashed the milestone release, wiped cache but didnt help. boot loop. should i wipe data as well?
[Nexus 7 Q&A, Help & Troubleshooting] jfmcbrayer:
The milestone release is very, very old, because I've never got around to designating another release as a second or third milestone. You should restore your boot partition from backup (or flash boot.img from the factory images), then flash a newer release corresponding to your android version (see the first two posts in the carcosa kernel thread for details).
[Nexus 7 Q&A, Help & Troubleshooting] saldirai:
seems to work just fine now thank you
[Nexus 7 Q&A, Help & Troubleshooting] Dakatar:
Hi everything! Did find everyone how fix this problem with wakelock?
[LG Optimus 2x] MMarkkk:
Download DiskInternals Linux Reader

Install>>Open program>>Drives>>Mount image>>Raw Disc Images>>select .img>>Mount
[Galaxy S III Q&A, Help & Troubleshooting] birdie101:
Hi everyone,

Is there a way to reduce the time between removing the phone away from your head and the screen coming on. My S3 takes anywhere up to 2-3 seconds to come on so that I can hang up the call.

Is there any setting that I can change or file I can edit to improve this?

Thanks in advance.

Luke
[Galaxy S III Q&A, Help & Troubleshooting] ravitomar:
1. Try factory reset.

Or 2. Use exdialer app because stock app are little slow.

Press thanks if helped.:D
[Galaxy S III Q&A, Help & Troubleshooting] oae08:
You can also hang up using the power button, check it from the settings...
[Nexus 7 Q&A, Help & Troubleshooting] stargazer_vit:
Hi.

I'm new to Nexus 7 and after a short time using it I began experiencing some strange issue with the it. While surfing the web over WiFi (note that I'm using the first Nexus 7 with WiFi only) after a short time glitching lines appear on the screen (as shown on the image attached) and some loud white noise coming from the speaker. It's stuck like this for about 30 seconds and then reboots. After reboot, everything seems normal, till it comes again. It takes 15-30 minutes of surfing and I believe the time depends on the intensity of surfing. Seems like WiFi modem somehow affects the GFX driver.

Note that I was first running android 4.1.1 and recently updated to 4.2. Updated didn't fix the problem. I've rooted the device with "Nexus 7 root toolkit v.1.5". Note sure if the rooting affected it somehow, as I rooted the device on second or third day of use.

Anyone have an idea of what could be wrong or how I might fix it? Or it's HW issue and I should turn it to Google?

Thanks!
[Nexus 7 Q&A, Help & Troubleshooting] stargazer_vit:
So I'm the first and only one with such problem???:silly:
[Nexus 7 Q&A, Help & Troubleshooting] markymark567:
I could be wrong here but that seems like more of a hardware(warranty) kind of issue. However, I had the speaker issue after flashing a custom ROM (sparks linario 4.2.1) and I had the speaker issue (along with a host of other bugs buts that's beside the point). I flashed stock and unrooted and the problem was fixed... I know it might not help your case but I thought ide let you know. Its possible the toolkit caused the issues and flashing back to stock and rooting with another method may solve your issue (that's what I would try). But if you end up sending it in under warranty for god sakes, unroot and relock your bootloader first! Otherwise Google probably won't honor your warranty.

Good luck friend.
[Verizon Droid Incredible 2] chuckinmd:
I need help....every rom I have tried they all make my Cpu run at 100% all of them worked and one day i was using my phone and it was working fine then all of a sudden my cpu has been running at 100%. It doesnt run at 100% on the sense rom but anyother rom now will not work can anyone help?

Thanks!
[Verizon Droid Incredible 2] ericsdeadinside:
Use the superduper wipe script in the dev section
[Verizon Droid Incredible 2] chuckinmd:
That should completely solve it?
[Verizon Droid Incredible 2] chuckinmd:
Completely solved it!! Thank you SOOOOOOOOOO much!!!!
[General Questions and Answers] king stalen:
hi

i need the stock blh4 rom on any website because hotfile is very slow

best regard