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lchiu7

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#119274 26-May-2013 21:57
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I have had my GN since about April of last year. I haven't done much to it apart from unlocking the boot loader, rooting it and flashing takju over the HK yakjuxw ROM so I could get Google updates.

Root was removed with the OTA 4.2.2 update but the boot loader remained unlocked.

Anyway lately I had been noticing that the phone was becoming very sluggish with the camera taking 3-4s to come up, bringing up the task manager taking 4-5s and pressing Home showing just the wallpaper for a few seconds before the icons would appear.

After researching XDA and some other places it seemed like the GN and some other Samsung phones do not implement the flash memory Trim command and flash memory can slow down dramatically over time.

The sledgehammer approach is to factory reset the phone and try to keep free memory around 4GB (I had about 2GB free) but that seemed a bit over the top for me.

I then discovered that the memory could be Trimmed by an app in the Playtore - lagfix.

https://play.google.com/store/apps/details?id=com.grilledmonkey.lagfix


It does require root but since my phone already had a unblocked bootloader and custom recovery, it was easy enough to copy the latest SuperSU to the phone, boot to Bootloader Mode and flash the file.

After that running lagfix has made a major different. The phone feels like it's new again and I have dampened my hankering for a handset upgrade.

As usual YMMV but it's worth considering if you a Samsung Android phone and are experiencing lagginess. My son rooted his Nexus S and ran lagfix and that brought his phone back to life.




Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/rooms/32019730  Mention GZ to get a 10% discount

 

System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR and Plex Server running on Gigabyte Brix (Windows 10 Pro), Sony BDP-S390 BD player, Pioneer AVR, Raspberry Pi running Kodi and Plex, Panasonic 60" 3D plasma, Google Chromecast

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen, Denon AVRS730H 7.2 Channel Dolby Atmos/DTS-X AV Receiver, Samsung 4K player, Google Chromecast, Odroid C2 running Kodi and Plex

 

 


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bradstewart
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  #825797 26-May-2013 23:07
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I had the same issue with my GNex.

Moving to CM10.1 made a huge difference over stock 4.2.2 (CM also implements trim).

Batman
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  #825798 26-May-2013 23:59
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wow awesome ... if I knew this I might not have swapped my S2 for the S4!




Involuntary autocorrect in operation on mobile device. Apologies in advance.


 
 
 
 


lchiu7

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  #825845 27-May-2013 09:22
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joker97: wow awesome ... if I knew this I might not have swapped my S2 for the S4!


To be sure - I have been eyeing the N4 for a while but held off because I don't like the non Google UI's. And when Google announced the native S4 that was appealing but for the price.

Now I can wait for the N5 or whatever the Motorola unit will be called. My GN certainly feels like a new unit again.




Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/rooms/32019730  Mention GZ to get a 10% discount

 

System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR and Plex Server running on Gigabyte Brix (Windows 10 Pro), Sony BDP-S390 BD player, Pioneer AVR, Raspberry Pi running Kodi and Plex, Panasonic 60" 3D plasma, Google Chromecast

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen, Denon AVRS730H 7.2 Channel Dolby Atmos/DTS-X AV Receiver, Samsung 4K player, Google Chromecast, Odroid C2 running Kodi and Plex

 

 


ubergeeknz
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  #825870 27-May-2013 10:08
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Well this has certainly helped on my GN but the lag's not gone.  The performance has been downhill it seems since 4.1, although I probably need a bit of a cleanout.

lchiu7

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  #825898 27-May-2013 11:01
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Well here is a thread on XDA that explains it more

http://forum.xda-developers.com/showpost.php?p=37029420&postcount=122





Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/rooms/32019730  Mention GZ to get a 10% discount

 

System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR and Plex Server running on Gigabyte Brix (Windows 10 Pro), Sony BDP-S390 BD player, Pioneer AVR, Raspberry Pi running Kodi and Plex, Panasonic 60" 3D plasma, Google Chromecast

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen, Denon AVRS730H 7.2 Channel Dolby Atmos/DTS-X AV Receiver, Samsung 4K player, Google Chromecast, Odroid C2 running Kodi and Plex

 

 


nzgeek
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  #826518 27-May-2013 17:42
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joker97: wow awesome ... if I knew this I might not have swapped my S2 for the S4!

It wouldn't have been a good idea on the S2. A large number of them suffer from a bug in the storage firmware that can cause permanent damage to the flash memory. We're talking motherboard replacement permanent! The same bug is also known to affect the GNote and I think the S3.

lchiu7

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  #826647 27-May-2013 20:53
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You can always check first if you have the bug with this app

https://play.google.com/store/apps/details?id=net.vinagre.android.emmc_check






Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/rooms/32019730  Mention GZ to get a 10% discount

 

System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR and Plex Server running on Gigabyte Brix (Windows 10 Pro), Sony BDP-S390 BD player, Pioneer AVR, Raspberry Pi running Kodi and Plex, Panasonic 60" 3D plasma, Google Chromecast

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen, Denon AVRS730H 7.2 Channel Dolby Atmos/DTS-X AV Receiver, Samsung 4K player, Google Chromecast, Odroid C2 running Kodi and Plex

 

 


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