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Original Nexus 7 Performance Issues Possibly Fixed Thanks to Android 4.3

new nexus 7 old nexus 7

Thanks to an update to Android 4.3, the original Nexus 7 may welcome in a new life with less lag and better performance. According to Brian Klug from AnandTech, the 4.3 update “enabled support for fstrim, an application which TRIMs blocks not in use by the filesystem.” In other words, your original Nexus 7 that has been terribly slow for months will now manage storage properly and potentially present an experience like you would expect all of the time. 

In the past, the Nexus 7 was apparently looking at anything written to its internal storage, and then continuing to look at it over and over again even if you had deleted it. For example, if you downloaded a massive 500MB game to your device and then deleted it later on, the eMMC internal storage of the N7 recognized that you had deleted the game by offering you up free storage again, but was still considering that empty block of 500MB space as being data it needed to track. So while you were showing storage available, internally, your tablet still thought that it needed to keep an eye on that space, thus slowing down performance.

With TRIM, the eMMC controller now communicates across your file system, telling it to stop monitoring that unused data chunk that was previously taken up by a deleted game or file or movie. It’s as if TRIM helps your file system refresh and better manage what you have stored.

So once you have Android 4.3 on your OG Nexus 7, you should start to see performance improvements TRIM puts in work for a bit.

Via:  AnandTech

  • Tee

    Ever since I updated my Nexus 7 to 4.3, I’ve been experiencing battery drain lie crazy. True, the OS is buttery smooth in performance, but what good is performance when you only get 3-4 hours of heavy use?

    I tried the following if anyone is interested:
    – Disbaled Google Current, Google+, and some other google related services
    – Disabled NFC and GPS (location services)
    – Trained the battery to fully discharge then fully charge
    – Closed multi-task apps in the background
    – Installed DS Battery Saver to monitor the battery
    – Installed custom Franco kernel
    – Set screen brightness to minimum (disabled auto-brightness)

    The battery usage is displaying 80% screen usage, can’t imagine why. Any ideas?

  • ocpone

    Did this happen to fix the volume issue?

  • Michael Chikindas

    Nexus 7.2 is no good. I’ve got it last Friday. It connected to my home’s Wi-Fi at first but after some kind of “updates” were downloaded and installed, the Wi-Fi connection disappeared. The device got terminally sick: it was either unable to connect or to even see the source, indicating it as “out of range” while my laptop PC and cell phone were connecting with no problems. I’ve then tried to connect the moody Nexus 7.2 to three different Wi-Fi sources at three different locations, with the very same result. On Monday, I sent it back to the vendor. RIP, Nexus 7.2. Final Verdict: incredible quality of the screen (true), but certainly NOT a “mobile device”.

  • Jon

    After updating to 4.3, my speakers sound terrible. They crackle and are very quiet even at full volume. Anyone else have this problem? Any ideas on fixes?

    • Anthony

      Same issue, fixed everything else but screwed up my sound :(((((

  • mfaraday

    My original Nexus 7(2012 version with 16gig internal) was rooted with 4.2.2 android. I updated it to 4.3. Now:
    The supersu is telling me I am missing binary files and rootchecker says it is not properly configured. Also when I try to turn on the Nexus it does not turn on unless I plug it to an outlet and afterwards I can disconnect and it works fine (all the programs needing root access work as well). Can anyone please help me how to flash the rom and install the SuperSu 1.43 or something else to make the Nexus 7 Start without connection to the external outlet?
    I really appreciate your feedback.

  • graeme soldi

    My nexus is laggy as hell playing games since 4.3. Was never like that before.

  • Addie

    My battery performance has gone downhill since the update.

  • Heartless12

    Also 4.3 killed volume plus!!!!!

  • mfaraday

    Do not update the original Nexus 7 from 4.2.2 to 4.3. After the update Nexus 7 will NOT turn on. Believe me I and some others have the same problem.

    • Heartless12

      I have updated and didn’t get any problem if anything my nexus 7 runs more smoothly

  • jeesung

    i heard it may have also fixed the WiFi roaming problem (i.e. not releasing from a weak AP when you’re near one with a stronger signal until you turn WiFi off then on again)

  • jdroid

    I was seriously thinking of upgrading to the new nexus 7 bit with the performance upgrades in across 4.3 will hold me back. Thinking of nexus 10 or bay trail tablet.

  • who

    4.3? Ha, im on 4.5
    Im also on meth, weed, and drunk

  • Neall

    Maybe it’s built into 4.3, but it’s always been available for the Nexus 7 via the free “LagFix” app. Find it in the play store.

  • silentbob2003

    4.3 killed MX Player on my Nexus 7…be warned. Hopefully MX Player releases an update soon.

    • Heartless12

      It also killed volume plus

  • droidrazredge

    People that have bought the brand new Nexus 7 (2013) are having problems with the Satellite GPS. The GPS only works for about 10 minutes or so after first using it. If I swap apps or use another app that uses GPS, my GPS dies (I’m testing using GPS Status with WiFi off). I sent Kellex a message about it to see if he’s experiencing those issues as well.

    You have to completely power off the device and power it back on again for it to work once more.

    It’s really an issue when play Ingres and the gps locks and does not update or are in the car driving using navigation and it locks on a past location and delays to where you were 15 mins ago. Can anyone comment on a fix or if they’re having similar issues?

    • Phillip Hanberry

      You are the only comment I’ve found all over the damn intertubes. Having the same issue with ingress and GPS. Bout to take it back and use the old nexus!!!

      • hoosiercub88

        It’s not even just Ingress, I’m having the same issues while tethered to my Note II and it’s just refusing to get a lock, even in Maps.

        • Phillip Hanberry

          Yup I’ve found some android threads takking abiut extensively from tons of users. Many have returned theirs only to find the same problem with a new one. They have responded saying they arebworking on a fix.

          • droidrazredge

            so Google is working on a fix and they have acknowledged the problem? I have a friend who codes for CyanogedMod Community and he has a fix for the GPS issue that he wrote and made it into a patch that fixes the issues. I also use to get these similar issues on my some of my smartphones that I use to own. It was annoying to have to reboot the phone every-time I turned on the GPS or wanted to get an update to my current location. It just refused to find a lock or update.

          • Phillip Hanberry

            Yes they said it would be fixed in an upcoming update. However, please share the fix, or point me in the direction I need to go

          • droidrazredge

            I have a link to the fix, are you familiar with custom roms on a Nexus device ? If not I can show you a guide that can explain this without rooting your Nexus. If you’re not comfortable with that I have alternative methods you can do. Sorry about the delay on the response but my computer died and I had to get replacement parts.

          • Phillip Hanberry

            I’d prefer not rooting so if there is a fix without it…

          • droidrazredge

            Google has just released JSS15Q which is an official 4.3 update that addresses the multitouch and GPS issues that plague us.

            Google Product Forums:http://productforums.google.com/forum/m/#!msg/mobile/W0Hfkq8hf-c/9pZO-D_8Y7gJ

            Let me know if the update addresses your problems.

    • Jared Brees

      I’m having the *exact* same issue! Found this comment via Google search for a fix. Thought it might be related to Foursquare, but it’s not; Foursquare crashes upon screen unlock after the reboot (if it’s installed). Any idea whether this GPS issue is hardware of software?

      • droidrazredge

        My friend who code for the CyanogenMod Community explained that the issue is not a hardware issue or a software bug. The issue is that the default config was designed to save battery aggressively and locking tends to suffer as a result. The new fuse location provider is supposed to compensate for that in theory but for certain apps like ingress or Google Maps is not enough.

        • Jared Brees

          Is there a way to change it without rooting? I’m not just seeing it in Maps.. I don’t play Ingress, but I see it with GPS Test, GPS status, every speedometer I’ve tried, Foursquare, Twitter, and My Tracks. (That’s pretty much my full list of GPS-aware apps… so yeah, it’s pretty consistent.)

          • droidrazredge

            My friend informed me that he wrote code for a GPS fix that works quite well, and is pretty well tested. It doesn’t tinker with aGPS at all as I find that doing so is temporary and mostly pointless as an actual solution. I don’t like bandaids.

            The issue is that this fix requires a custom recovery image to be installed. It doesn’t require root directly, but you might need root to install a custom recovery image. He will provide me with the download links Friday when he packages them up. Please note that while the fix is not device specific, the update file is required to be.

            As such, he informed me that there will be multiple versions. If you want me to have him package it up for your device, comment below what it is and on what carrier.

          • Jared Brees

            I’m not all that familiar with the Android bootloader/recovery/ROM ecosystem, so I can’t say whether or not I’ll figure out how to use it, but I’m on a 2nd gen. (2013) Nexus 7, WiFi-only, 16GB model.

          • droidrazredge

            I can provide a guide and procedure that will go along with how to use this method for you also.

          • Jared Brees

            Nice; thanks. At least this bug isn’t a hardware issue.

          • droidrazredge

            Do you still need the guide, he also has the link to the fix ? My computer desktop died so I got delayed and set back a bit.

          • Jared Brees

            Not a problem. If there’s a guide that works on Linux (I use Ubuntu, but can usually translate from other distro’s guides), that’d be great. If not, a fix/patch without a guide would still be appreciated. Thanks!

          • droidrazredge

            Google has just released JSS15Q which is an official 4.3 update that addresses the multitouch and GPS issues that plague us.

            Google Product Forums:http://productforums.google.com/forum/m/#!msg/mobile/W0Hfkq8hf-c/9pZO-D_8Y7gJ

            Let me know if the update addresses your problems.

  • Alan Paone

    Mine wasn’t slow to start, but it’s all kinds of fast now

  • mustbepbs

    4.3 fuc*ked up my Nexus 10 even more. Now, instead of the memory leak, it has overactive min free values that end apps if I have more than 2 open. I hate it and I’m so sick of Google’s beta products. So angry. If it’s not one problem it’s another. Took them 6 months to fix the first problem.

    • Jarred Sutherland

      Submit a bug report? Or just complain about it here .. whatever suits the situation best.

      • mustbepbs

        I already have. You don’t need to be a dinkus about it. I’m just pissed off that my $400 tablet is just a beta product.

        • Jarred Sutherland

          Not sure what a dinkus is, but most people don’t bother to submit bug reports so my assumption is that. Have you tried wiping the device and starting fresh?

  • geedee82

    The 4.3 update also seems to of fixed the slow charging issue.

    • hkklife

      Interesting. My N7 is actually charging more slowly AFTER the 4.3 update and I am experiencing worse battery life (mostly due yo high media scanner usage in the stats).

      I think a nice hard reset is in order this weekend. Now, I will say that the performance is MUCH better after installing 4.3 and the low screen brightness bug seems to have been fixed as well.

  • Lucas French

    The 4.3 update made my nexus 7 snappier and just better all around. Anyone else noticing better battery life? I’m so getting at least two extra hours of use on this beast. So better battery life and smoother performance, I’ll take that any day. 🙂

    • Addie

      No, quite opposite. Battery life has gone down considerably on mine. Not happy

    • anthonyp

      Same here at least two more hours

  • Jeff

    I’ve honestly never had lag issues with my old Nexus 7. I guess I’m just lucky?

  • br_hermon

    I can’t believe not a single person has mentioned Lagfix. That’s basically what this update incorporated.


    • Anthony_Armando


    • checazola

      Since I installed 4.3 on my VzGnex I haven’t had to run Lagfix. 4.3 seems to be better that just running Lagfix. Lagfix made the phone run a bit faster for just a couple hours. If I updated a couple apps from the Play store before I had to run it again.

  • Tyrus

    Too little too late, already sold the Nexus 7. It was never laggy though.

  • Bigwavedave25

    4.3 sure perked up my GNex… I’ll bite on this.

  • HotRodJohnson

    Hopefully it fixes my crackling speaker issue.

    • Jeff

      That is probably a blown speaker. Lots of people had this. I personally replaced the speaker with a $10 replacement before it occurred to me I should check the warranty, but it fixed the problem either way. I believe there are YouTube videos showing how to replace the speaker, or even just test to see if that’s the problem.

  • DavidB

    Please Amazon, 4.3 with TRIM enabled for the Kindle Fire HD’s!

    • Terrance Steiner

      Good luck with that. The Kindle Fire is still running a skinned version Gingerbread.

      • DavidB

        Hello. Please note I said “Kindle Fire HD’s”, which run a customized ICS, not Gingerbread. If they can run ICS, they in theory should have the CPU and RAM to run Jelly Bean 4.3. But thanks.

        • Terrance Steiner

          I thought that all the Kindles ran Gingerbread. My bad.

  • argeebee99

    For more to the story, I emailed him asking about Seeder and 4.3. His response:

    “I thought it was proven that the /dev/urandom entropy pool thing was placebo: https://code.google.com/p/android/issues/detail?id=42265

    Also I seem to remember it being specifically called out during the Fireside chat this year at I/O but can’t remember where it was: https://www.youtube.com/watch?v=A5OOJDIrYls

  • ChaseCrewDad

    I haven’t spent a whole lot of time on my old N7 since picking up a new one on Saturday, but it looked to me like the low light screen flicker issue was fixed as well.

  • sc0rch3d

    Any way to measure TRIM performance? (man, that sounds dirty)

  • mi470

    Quick question. Do I need to update to 4.2.2 before I update to 4.3? My old Nexus 7’s 4.2.2 update came with a corrupt Settings APK and I’m not rooted and I won’t be. My old device crashed for good and I ended up getting a replacement device via Google, but it came with 4.2.1 and I’m worried that I’ll end up with the same problem again if I update to 4.2.2 before 4.3.

    • Nate Bousfield

      It’s very unlikely that the same problem would happen again.

    • brkshr

      No need to update before you update. You must have received a corrupt file last go around.

  • Jason Kahn

    I noticed four things so far
    1. Battery meter bug is fixed
    2. Lock screen lag, lag in general is considerably reduced
    3. I had 3GB free storage before the update, after the update that went up to 3.6GB
    4. Bluetooth Audio quality considerably improved, the EQ in Google Play music actually does something now

    I have not noticed the storage improvements yet, but my understanding is it could take a couple of days

  • Hope 4.3 saves my VzGnex. It runs out of memory so quickly and lags horribly 🙁

    • checazola

      If you can update to the stock ROM that was released last week, you should do it. It made a huge improvement on my VzGNex.

  • checazola

    My Nexus 7 was never laggy, but 4.3 made it a bit faster. But 4.3 really made a difference on my Verizon Galaxy Nexus. My phone is fast and almost feels like new again.

  • MJZ

    Still waiting for the OTA

    • pball_inuyasha

      I’m still waiting for it also. I’m starting to wonder if that thing I flashed for making usb otg is an issue.

      • gsDroid

        Stickmount replaced or changed the ‘debuggerd’ file which will cause a verification failure on the update. Copy the 4.2.2 debuggerd file into /system/bin to replace it and try updating again.

        • pball_inuyasha

          Well I finally got the OTA yesterday, except it didn’t like my root and custom recovery. So I just flashed stock, updated, then re-rooted which was probably easier and better than flashing more stuff. With the backup I didn’t lose anything but my wallpaper and some system settings since I didn’t backup system apps.

    • mine self downloaded night before last. so still coming through.

    • JamesU513

      Mine came yesterday afternoon, hope yours comes soon

    • geedee82

      I was able to pull it on Sunday by doing the ol’ clear data in Google services framework trick.

      • DoctorJB

        Thanks for the help. Mine still wasn’t showing up until I cleared the data.

        • geedee82

          No problem, glad you got it!

    • willis

      I was going to do the clear data in google services trick but i just looked and it just showed up, but unfortunately my battery is too low to install right now

  • Good_Ole_Pinocchio

    Soooo Kellen…. We’ll need an update about this in a week or so. Give it some time and let us know unless you’re too busy with the new one

  • EC8CH

    Now if only 4.3 could update my OG N7’s screen to the new hotness.

  • Brian

    I thought the problem was they used crappy hardware for the storage or something like that?

    • NexusPhan69

      Only if you read the apple fan sites.

      • JoshGroff

        It was actually referenced here IIRC, can’t be bothered to find the article though.

  • big007hed

    I did the upgrade using Recovery and my performance has been extremely laggy. I had to reset device and go through everything and it is now usable. It is extremely slow for opening programs and other normal activities. Not sure what the difference is.

    • brkshr

      They say to give it a couple days. It should go through your device while it not’s being used & fix what is being tracked.

      • big007hed

        OK cool, I redid it yesterday so I will give it some time. Thanks for the heads up.

        • Greyhame

          Battery above 70% and screen off are the conditions to enable fstrim.

  • Verizon

    So 4.3 is like Viagra?

    • JaronDW

      Is this Verizon acknowledging that 4.3 exists? I figured that wouldn’t happen for a couple years!

      • Verizon

        I know it exists. That doesn’t mean anyone will see it any time soon.

        • ReturnOfTheMack

          You are my new favorite comment-er on DL.

  • coolsilver

    I would hope any device with TRIM capable hardware can see this as a boost.

    • brkshr

      That’s what they’re saying.

  • Ryan

    I never really noticed mine running slow, but then again maybe i’m not that picky. I also don’t use it for a lot of heavy tasks. Mostly browsing my social accounts, web, and reading.

  • I definitely noticed a significant improvement in my OG N7 when I upgraded it to 4.3. But the difference from the OG to the new N7 is by far more impressive 🙂

  • Nick

    This should also work on the nexus 10 when it gets updated right?

    • Will P


  • brkshr

    I like how The Verge acted like they discovered this all on their own & didn’t give AnandTech any credit for releasing this bit of news to the world. Glad DL gave credit where it’s due.

    • Good ol’ Verge.

    • Good_Ole_Pinocchio

      Come on. They did. In the last paragraph.

      • brkshr

        I must have read over that part. Thanks for the correction.