Improved 3G/Edge Speeds

**HTD** · 02-08-2011, 06:11 PM

NOTE: The variation of this MOD are unlimited as it depends on your target network, coverage, reception etc cliché's.
So, YOU GOTTA CUSTOMIZE AS PER YOUR RESPECTIVE TARGET NETWORK'S.

A Hack to increase 3G and EDGE Speeds of your spica. Orignially i got the idea from andronica and some xda threads. Just wanted to share with your guys.

Add these lines to your ROM's build.prop. Which can be found under '/system/build.prop'.

Code:

ro.ril.hep=1
ro.ril.hsxpa=2
ro.ril.enable.dtm=1
ro.ril.gprsclass=12
ro.ril.hsdpa.category=8
ro.ril.enable.a53=1
ro.ril.hsupa.category=5
ro.ril.enable.3g.prefix=1

Explanation
ro.ril.hsxpa = indicates hsxpa support of target network :
Code:
ro.ril.hsxpa=0 - UMTS r99
ro.ril.hsxpa=1 - HSDPA
ro.ril.hsxpa=2 - HSDPA/HSUPA
ro.ril.gprsclass = inidcates GPRS class of target network :
Code:
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
More info Here

ro.ril.hsdpa.category =
Code:
Cat 1 = 1.2 Mbit/s
Cat 2 = 1.2 Mbit/s
Cat 3 = 1.8 Mbit/s
Cat 4 = 1.8 Mbit/s
Cat 5 = 3.6 Mbit/s
Cat 6 = 3.6 Mbit/s
Cat 7 = 7.2 Mbit/s
Cat 8 = 7.2 Mbit/s
Cat 9 = 10.1 Mbit/s
Cat 10 = 14.0 Mbit/s
Cat 11 = 0.9 Mbit/s
Cat 12 = 1.8 Mbit/s
Cat 13 = 17.6 Mbit/s
Cat 14 = 21.1 Mbit/s
Cat 15 = 23.4 Mbit/s
Cat 16 = 27.9 Mbit/s
Cat 19 = 35.3 Mbit/s
Cat 20 = 42.2 Mbit/s
Cat 21 = 23.4 Mbit/s
Cat 22 = 27.9 Mbit/s
Cat 23 = 35.3 Mbit/s
Cat 24 = 42.2 Mbit/s
Cat 25 = 46.8 Mbit/s
Cat 26 = 55.9 Mbit/s
Cat 27 = 70.6 Mbit/s
Cat 28 = 84.4 Mbit/s
ro.ril.hsupa.category =
Code:
Cat 1 = 0.73 Mbit/s
Cat 2 = 1.46 Mbit/s
Cat 3 = 1.46 Mbit/s
Cat 4 = 2.93 Mbit/s
Cat 5 = 2.00 Mbit/s
Cat 6 = 5.76 Mbit/s
Cat 7 = 11.5 Mbit/s
Not speed related, but still nice to have :

ro.ril.enable.3g.prefix : adds the 3G prefix to the operator name.

ro.ril.enable.dtm : Only set this to 1 if your network allows simultaneous transfer of Circuit switched (CS) voice and Packet switched (PS) data over the same radio channel (ARFCN).

EXTRA INFO
CHANGELOG
v2
- MOD NOW UNIVERSAL. APPLY ON ANY BUILD.
- It also makes a backup copy of original build.prop as build.prop.bak in /system.
- Now it appends the values to your original build.prop at end.
- Doesn't replace other values to default.

v1
- Original Mod.
- Replaces original build.prop with modified one.

Based on my experiment, it increased my 'Airtel' EDGE network speed by 2x.
Hope it works for you guys too.
You guys can test and record speeds with different settings using Speedtest.net app. Please test once before applying this MOD. So you can compare.

HOW TO KNOW YOUR CARRIER'S SUPPORTED VALUES :
1. Google
2. Look it up on official website.
3. Trial & Error.

Basically there are two lines which are most important.
Code:
ro.ril.hsxpa=2
ro.ril.gprsclass=12