[TWEAK: GSM ONLY] Boosting Signal Strength with "ro.ril" props (HSxPA/GPRS/EDGE)

[CrackUC]

First things first, YOU NEED A ROOTED PHONE! PERIOD.

Declaration: "I did not create or find these out on my own. I have compiled these and experimented with them to come up with the following conclusions."

---------------------------------------------------------------------------------------------------------------------------------------------

These, "ro.ril" props are instructions for android to choose the best signal no matter what other signal are available. On default, Android will choose the stronger signal, which is in most cases not the smartest thing to do.

For example, you are on the bus/train and you pass 10 different mobile towers and different distances, depending on how close the towers are together, your phone will probably try to change the signal about 20 times. This will greatly reduce battery and will have poor internet performance.

This tweak will order your phone to always stay on one strength at all times, so when the next mobile tower comes, it will connect to the same signal without negotiating for something different.

These are the entries: (ro.ril.xxxx=[value])

ro.ril.hsxpa= (other values are invalid until proven otherwise)

[0=UMTS] [1=HSDPA only] [2=HSDPA & HSUPA] [5=No significant information has been found but it make the switch between WiFi and HSxPA nearly instantaneous (note works like "2" but better)]

ro.ril.gprsclass= (Class 10 will significantly save battery, unless you use EDGE/GPRS instead on 3G)

[12=Default for most modern phones, check you phone @ www.gsmarena.com]

ro.ril.hep=

[0=off] [1=Default] (no info available, no change when turned off, people have reported increased stability when turned off with some phones)

ro.ril.enable.dtm=

[0=off] [1=on]

Enable "dual transfer mode" on EDGE networks; requires different GPRS class setting. 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). (Turning this off on some carriers, including Optus (AU) and AT&T greatly increases upload speeds)

ro.ril.hsdpa.category=

[Your phones HSDPA Category found here]

ro.ril.hsupa.category=

[Your phones HSUPA Category found here]

ro.ril.enable.a53=

[0=off] [1=on] (Enable increased ciphering on HSDPA/HSUPA, for increased security, but decrease in performance)

ro.ril.enable.3g.prefix=

(Adds the 3G prefix e.g. Optus 3G, etc. Purely cosmetic)

ISTRUCTIONS

ROOT PHONE!!!

CHECK IF ITS ROOTED

Get RootExplorer or a similar app (also possible with ADB push for advanced users).

Mount "/SYSTEM/" folder as R/W or READ/WRITE.

Open "/SYSTEM/build.prop" WITH TEXT EDITOR.

MAKE SURE THE "RO.RIL" PROPS DON'T ALREADY EXIST, IF YOU HAVE A CUSTOM ROM!!!If they do, then just modify them.

Scroll to the bottom of the page, add an empty line and add the "ro.ril" entries.

When done, save the file (you will be prompted that a backup is saved).

Remount the "/SYSTEM/" folder to R/O or Read Only

Reboot. Some phones require multiple reboots to fully amend all the changes.

In the end it should look something like this: (ATTENTION! DONT COPY THIS! These are old and are not optimized at all!)

ro.ril.enable.dtm=0 
ro.ril.gprsclass=10 
ro.ril.hep=0 
ro.ril.enable.3g.prefix=1 
ro.ril.hsdpa.category=8 
ro.ril.hsupa.category=6 
ro.ril.hsxpa=2 
ro.ril.enable.a53=1

NOTES:

Best SpeedTest I've got was D2.98/U1.52 48ms ping on 4 bars, average is about D2.5/U1.0 80ms thanks to this tweak. Before it was more like D1-1.5Mbps/U0.5Mbps

All carriers have their own specific settings. Some settings might work better some might make it worse. Mix and match and experiment to get best results.

Sometimes making you HSDPA/HSUPA higher than your phone's capabilities makes it perform better, likewise could make it worse, experimenting is key.

To remove these settings, just delete all the entries and reboot 2 times.

This will not increase the power of your antenna or increase radiation. All this does is choose the best profiles for GPRS/EDGE/HSDPA/HSUPA. Its proven to increase speed and connection strength.

(credit goes to DJSCOPE)

[Die2mrw007]

Great post +1