[HTC Inspire 4G] id10terrordfw:
Instructions

Prerequisites:

A basic knowledge of flashing ROMs and Radios on the HTC Inspire 4G and ADB commands

S-Off HTC Inspire 4G with CWM Recovery and AT&T service

MicroSD card inserted in phone

Root capable file explorer (I prefer Root Explorer, as it can set permissions)

Download the following three files and extract to the location of your choice on your SD Card: MultiUpload(Updated 05-13-2011)

EDIT: for testing, please download This instead, it should place the telephony.db FOR you. Please report back any permissions issues, or if it even works...

Steps:

NANDROID BACKUP BEFORE BEGINNING!

1. Place PD98IMG.zip(12.39a.60.19x_26.06.06.30_M) on root of SD Card (location: \mnt\SDCard) Reboot into bootloader to install updated Radio(If necessary, if you have already flashed this radio you do NOT need to reflash radio.)

2. Once radio is installed, reboot into ClockworkMod Recovery, go to mounts and mount /system, and install the Speed Boost .zip from CWM. This includes the (verified)updated RIL files for the radio as well as propeditor for the next step.

3. Once rebooted, Prop Editor should now be present in your app tray. Open and grant Root Access. Once you have completed that, BACK UP YOUR build.prop and copy to your ADB location on computer (this way you can recover if this step gets a little messed up, reboot recovery and ADB push build.prop /system)

4. Using Prop Editor, make the following changes and additions to your prop file(Note: Any line not expressly mentioned here SHOULD NOT BE CHANGED OR TOUCHED):

ro.ril.ecc.HTC-GCC=999,112,997
ro.ril.ecc.HTC-WWE=999
ro.ril.ecc.HTC-ELL=92,93,94
ro.ril.enable.a52.HTC-ITA=1
ro.ril.enable.a53.HTC-ITA=1
ro.ril.enable.a52=0
ro.ril.enable.a53=1
ro.ril.hsdpa.category=14
ro.ril.hsupa.category=7
ro.ril.hsxpa=3
ro.ril.disable.fd.plmn.prefix=23402,23410,23411
ro.ril.enable.sdr=0
ro.ril.enable.ucsq=2
ro.ril.enable.amr.wideband=0
ro.ril.att.feature=1
ro.ril.enable.gea3=1
ro.ril.radio.svn=3
ro.ril.enable.prl.recognition=1
*media.a1026.enableA1026=1
*htc.audio.hac.enable=1

*Ignore on CM7 based ROMs. It will eat your battery.

5. Reboot phone TWICE.

6. [EDIT: Not needed on CM7 sourced ROM's after nightly build 57, MIUI, Inspired Ace by gtg465x, see step 6a] Open your Root File explorer of choice, then copy telephony.db and navigate to /data/data/com.android.providers.telephony/databases and rename existing telephony.db to telephony.db.old, then paste the new telephony.db in that location, and set permissions to rw-rw----. Reboot phone. *see below if phone.apk crashes on reboot

6a. Change APN's to match what is in THIS thread by henrybravo.

Be sure to hit his Thanks button too!​

7. Once phone is rebooted, go to settings, wireless and networks, mobile networks, and access point names. Select the locked APN (Note: WiFi Hotspot still works)

This should complete the modifications, speeds should be much better.

* - If you get crashes in Phone.apk, reboot into ClockworkMod Recovery, choose Advanced, and Fix Permissions. This will cause a temporary issue in which Contact pictures do not appear in the Messaging app. To fix this,get a terminal emulator, then do these steps:

su

chmod 666 /data/data/com.android.providers.contacts/files/*

This will fix this issue after reboot.

Many thanks to:

henrybravo, for the telephony.db method

IsraelR for the original build.prop thread

Any others I left off the list are purely unintentional. Please PM me and let me know!