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Editing the build.prop for faster data speeds

OP IsraelR

6th March 2011, 09:52 AM   |  #1  
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I've been reading about editing hsdpa and hsupa catagory numbers as well as the gprsclass number and seem to have improved my upload speed and possibly my download speed. In my basement, I usually see about 2200 kbps down and 1000 kbps up. Changing a couple numbers, I am now at a consistent 2500kbps and 1600kbps.

I'm running Android Revolution v3.0 with the 26.06.03.24_M2 radio.

ro.ril.gprsclass=12
ro.ril.hsdpa.category=14
ro.ril.hsupa.category=7
ro.ril.hsxpa=3

I rebooted twice.

Could be purely coincidental, but I thought it may be worth sharing and discussing.
Last edited by IsraelR; 20th March 2011 at 11:31 AM. Reason: Cat spel now gud.
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6th March 2011, 10:11 AM   |  #2  
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Would be great if you could elaborate a little more on the technical side of what these values actually do and stuff
6th March 2011, 07:30 PM   |  #3  
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All this is cut and pasted from other sites, it's not my own research.

ro.ril.gprsclass indicates the GPRS class of the target network :

Class 2 : 3 slots : 8 – 12 kbps upload / 16 – 24 kbps download
Class 4 : 4 slots : 8 – 12 kbps upload / 24 – 36 kbps download
Class 6 : 4 slots : 24 – 36 kbps upload / 24 – 36 kbps download
Class 8 : 5 slots : 8 – 12 kbps upload / 32 – 40 kbps download
Class 10 : 5 slots : 16 – 24 kbps upload / 32 – 48 kbps download
Class 12 : 5 slots : 32 – 48 kbps upload / 32 – 48 kbps download

ro.ril.hsdpa and ro.ril.hsupa catagories are similar where each catagory is a target for a maximum data rate. It may seem that higher is better, but another thread on the G2 forum seemed to show that if you went too high, something triggered to lower the speeds back down to below factory levels.

http://androinica.com/2009/12/14/hac...r-2g3g-speeds/

http://forum.xda-developers.com/show...highlight=amon Amon_RA has a lot of good insight as to what they mean.

http://en.wikipedia.org/wiki/High-Sp..._Packet_Access

http://forum.xda-developers.com/showthread.php?t=838388
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6th March 2011, 08:17 PM   |  #4  
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setting hsupa to class 7 is netting me 2.7mbps uploads. Crap, that is faster than my uverse service!
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6th March 2011, 09:20 PM   |  #5  
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OMG!!! its really fast I just did a speed test i got 4.7 down and 1.4 up...Nice
6th March 2011, 10:27 PM   |  #6  
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I edited my build.prop on my inspire and now I get 3000 down and 1673 up i was getting 1200 down and 600 up
6th March 2011, 10:36 PM   |  #7  
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Here are my full settings:

GPRS: 12
HSDPA: 10
HSUPA: 7
HSXPA: 3

I didn't change any other settings.
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6th March 2011, 10:39 PM   |  #8  
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Any steps for those who have never edited this before?
6th March 2011, 10:43 PM   |  #9  
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Quote:
Originally Posted by Sportsguy15

Any steps for those who have never edited this before?

I used prop editor ( I can't remember where I found it, but it is an apk. I used it to make the changes after backing up my build.prop. I will upload here in a few minutes.

Be warned, you can wreck your software pretty good messing with this file. Just some forewarning.
Attached Files
File Type: apk propeditor.apk - [Click for QR Code] (35.1 KB, 4414 views)
Last edited by id10terrordfw; 6th March 2011 at 11:07 PM.
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6th March 2011, 11:56 PM   |  #10  
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Well, I'm glad it wasn't just my imagination. Those settings I posted aren't necessarily the optimum setup for our phones, so a little experimentation may yield even better results.

Quote:
Originally Posted by Sportsguy15

Any steps for those who have never edited this before?

There are several ways to do it, prop editor being a great one. Here's what I did step by step for the new guys:

MAKE A BACKUP OF YOUR ROM THROUGH CWM.

Download "root explorer" and possibly "mount /system (rw /ro)" from the app market.
Open up root explorer and select the system folder
Near the top of the screen there should be a "Mount R/W" button. Select it. If it won't let you change to R/W, go back and open up the "mount system" app. Select Mount r/w. Go back to root explorer and you should be able to now select Mount R/W in the system folder.
Long press build.prop and scroll down to "Open in Text Editor".
Make your desired changes, tap menu and then Save & Exit. It will automatically save your original build.prop as build.prop.bak and save your changes.
Reboot twice (once didn't work for everyone in the threads I was reading).

As id10terrordfw said, you could potentially mess things up with your rom, so be careful. If you aren't confident in what you're doing, it's probably best to just leave it alone.

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