Your old Nexus 7 running slow? Android 4.3 brings a fix
The problem - turns out - was not merely a hardware one, but also had to do a lot with support for a feature called TRIM. TRIM was introduced shortly after SSDs (the type of fast internal storage used in mobile devices, as opposed to slower rotary hard disk drives) started becoming popular. It solves one huge problem - garbage collection. With support for TRIM you could easily avoid the slow down in write operations to the storage blocks.
The problem with the original Nexus 7 was the lack of it.
Luckily, Android 4.3 introduces support for fstrim and as soon as you update your old Nexus 7 to the new Android version the problem should be gone. TRIM support had allegedly been a part of Android 4.2 all the way, but it had to be enabled and that has happened in 4.3.
Basically, this means that devices that slow down with age, will have their problems fixed as soon as they get Android 4.3. Once again we are seeing Google do a lot of work under the hood, and that type of improvements have been a huge part of the Android 4.3 new features.
1. hung2900 (Posts: 891; Member since: 02 Mar 2012)
Luckily this time the Hynix's NAND flash is much better on N7 II than N7.
The NAND choice of Asus detroyed almost all of its 2012 tablets with terrible I/O,
4. yowanvista (Posts: 340; Member since: 20 Sep 2011)
The first Nexus 7 featured relatively cheap nand chips with a controller which was bugged. You can't expect decent performance from cheap flash storage.
12. azfar (Posts: 22; Member since: 22 Jul 2013)
Is the lag issue on oldgen nexus 7 resolved for anyone? I still see no happy oldgen owner after this update?
11. TheLolGuy (Posts: 483; Member since: 05 Mar 2013)
Cheap price, cheap parts. Don't know what else you were expecting...
3. jdoee100 (Posts: 334; Member since: 04 Jun 2013)
I guess people are blaming samsung's NAND for this, but at least two things do not make sense. First, samsung provides NAND to many devices and companies, but N7 is the only one that seem to have this problem. Second, before the software update, N7 ran fine. But after the update, N7 started having problems. I don't know whose fault it is, but these two things make me wonder whether it was the samsung's fault but rather a bug in android for N7.
6. hung2900 (Posts: 891; Member since: 02 Mar 2012)
Samsung's NAND is one of the best in the market right now.
The stupid NAND flash inside the first gen N7 is made by Hynix's . The flash chips (also made by Hynix) of transformer series are even worse (very very terrible I/O)
5. OpTiMuS_BlAcK (Posts: 417; Member since: 04 May 2012)
Good thing fstrim works on my phone with LagFix Free~
9. rabih_z (Posts: 45; Member since: 02 Nov 2012)
still no update for either nexus 4 & nexus 7 in Lebanon.
is there any schedule for when the update should reach this region?
10. iGeek (Posts: 171; Member since: 15 Mar 2013)
They are here dude check again ! All my android fans friends are updating their nexus's now :)
15. PapaSmurf (Posts: 9907; Member since: 14 May 2012)
I manually pushed the update to my N7 four days ago. 4.3 is a lot snappier than 4.2.
19. rabih_z (Posts: 45; Member since: 02 Nov 2012)
that's why i need it bcz my N7 performance has been slowing for the past couple of months
13. azfar (Posts: 22; Member since: 22 Jul 2013)
Is the lag issue on oldgen nexus 7 resolved for anyone? I still see no confirmation from any oldgen owner after this update?
16. PapaSmurf (Posts: 9907; Member since: 14 May 2012)
There's no stutter or lag on the 4.3 update in the N7. I can confirm this. The only bug I have is I can't download or update any apps through Google Play.
17. PapaSmurf (Posts: 9907; Member since: 14 May 2012)
UPDATE: Some N7 users have had trouble with the Google Play store. Remove the Google account and add it again and everything should work. Hoped this helped anyone who was experiencing the same problem.
14. Jeradiah3 (Posts: 1017; Member since: 11 Feb 2010)
As LeBron James said when he won his first NBA Title "Its about damn time" lol
Ive had problems with my Nexus7 recently and cant wait to update my tablet to android 4.3 to resolve this issue. Google has 2 tablets that can beat the competition when it comes to price, hardware, and reliability.
20. uxgent (Posts: 1; Member since: 27 Aug 2013)
totally fixed mine.
had to rebuild the thing with the adb tools to really have it working well but 4.3 has definitely fixed it