Original Nexus 7 may be usable again after Android 4.3 update as Google adds TRIM

Daniel Bader

July 30, 2013 4:52 pm

nexus7-10

If you are one of the thousands of users who, seemingly out of nowhere, experienced performance issues with your original Nexus 7 tablet, an update to Android 4.3 could substantially improve matters.

The choice of low-quality eMMC and a poorly-performing memory controller in the Asus-built Nexus 7, combined with a lack of garbage collection in filled-but-unused sectors of the memory, contributed to slowdown over time. Wiping the device clean temporarily fixed the problem, but once the blocks were filled again with apps, music and other files, the tablet quickly began to bog.

Android 4.3 introduces TRIM support to the operating system, including the Nexus 7, which is a standardized cleanup procedure for compatible file systems that detects unused memory blocks and, when the device is plugged in and not in use, wipes them clean.

According to Anandtech’s Brian Klug, “TRIM (and its equivalents) establishes that communication between file system and eMMC/NAND controller. When unused blocks are TRIMed at the OS level, a signal is sent to the eMMC controller telling it that it no longer has to track that data. A good controller will then schedule those NAND pages/blocks for garbage collection/recycling, thus improving performance.”

While this will most prominently affect the Nexus 7, which is badly in need of such performance improvements, TRIM has been found to run on all Nexus devices running Android 4.3, and should be up to the OEM to implement when specific carrier models are updated in due time.

Source: Anandtech

  • silver_arrow

    I have noticed a major difference since mine received the update. It feels like a brand new device

    • Threecube

      Yeah I have been very impressed with how smooth it feels after 4.3. Mine has been pretty laggy the past few months before this.

    • TomsDisqusted

      Me too. After almost a year of heavy use I was just starting to see this problem, so I called Play support and they said they would be happy to send me a new one.

      Fortunately, I received 4.3 before my warranty expired, and it solved the problem!

      I can forgive the fact that the support people didn’t know that 4.3 was going to solve the problem. They were very helpful, easy to get hold off, and quite willing to send a replacement ASAP.

  • Eric

    Still waiting for my update! >:

    • notzippy

      Still waiting as well !!

    • Sean Walton

      It will come. My N7 got it last night. My N4 is still waiting though.

    • Shyam Madhavan Sarada

      Still waiting too (N7 in India).

    • Philippe Gaboury

      Got my N4 updated 3 days ago.

    • Sean Walton

      I’m jealous lol. As of today i’m still waiting for my N4 to get it. My wife just got 4.3 today on her N7. Slowly but surely the updates are rolling out.

    • KJR

      I received my update last night. Happy as can be.

  • kevin c

    Is there a third party app that does the same thing? For those running devices that won’t get JB 4.3?

    • Savage Alien

      Search for ” fstrim ” on the Play Store

    • hfghgfhf

      yes, but you need root

  • Sensualpoet

    My update arrived this afternoon — original Google Canada pre-order, 8 GB model.

    • Fawoo

      I only have the 512kb model you’re so lucky you have 8MB!

    • AlphaEdge

      Funny correcting someone, when you get it wrong yourself. You mean 1 GB model. There is no 512KB model.

    • Sierra

      pretty sure you missed the whole sarcastic underton of @FanyWoo:disqus ‘s comment, but thanks for trying…

    • Sensualpoet

      Such pathetic sarcasm is typical for these comments, alas. I was simply pointing out the update extended to (and works on) the original leanest memory model.

    • Fawoo

      And everyone understood that, I was only making light of your error in using MB instead of GB (which you have now changed so my joke no longer makes sense).

    • Rupinder Sra

      I too have a Google Nexus 1. Rooted. But now it does not come on. The
      +CyanogenMod 7 just keeps turning round and round…reminds me of Englebert Humperdink’s song ‘ turning and turning the world goes on’

  • rony

    unbelievable what google does with android. few years ago it was nice alternative but ugly OS compare to iphone. since then so many major changes happened to android . this one is one of the glazing on the cake. cannot believe how poor is iOS compare to android today. apple hasn’t done anything important to their baby

  • Guest

    After almost a year of heavy use I was just starting to see this problem, so I called Play support and they said they would be happy to send me a new one! Fortunately, I received 4.3 and that solved the problem!

    I can forgive the fact that the support people didn’t know that 4.3 was going to solve the problem. They were very helpful, easy to get hold off, and quite willing to send a replacement ASAP.

  • selonmoi

    The $200 Nexus 7 gets this update, while my $500 Transformer Prime sits stuck on 4.1 forever, running like total crap. That’s the last time I ever buy a non-Nexus device.

    (To be fair, there were no Nexus tablets at the time, nor any strong indication there would be.)

    • jhk

      you should root that thing seriously.

  • monsterduc1000

    I hope Asus brings this to my laggy Transformer tf300 which uses the exact same processor and memory as the original Nexus 7…

  • whyweredoomed

    I was about to give up on my non-backuppable data and factory reset my tablet, but 4.3 arrived just in time. It’s a distinct and very welcome perk-up to my lethargic Nexus 7 16GB! (will save me some $ on upgrading to the new Nexus before I really need to…)

  • Rick Kenneth Restrepo Carmona

    Some of my notifications stop appearing since the update, like gmail and games. Could this be part of the reason, TRIM?

  • CFraser

    For those older and non-Nexus devices that will never see 4.3, have a look at the developer community. I’ve been running 4.3 AOSP (Shiny ROM) on my GNex since Friday. It has been a breath of fresh air. Just got the OTA update on my N10 tonight.