[Non-Touchscreen Windows Mobile Other] simdao:
Enclose all the reg hack for Q9H for your reference

The Q9h has a file size limit (307.2 KB) on ringtones that is embedded in the registry of the operating system (Windows Mobile 6). That is what is causing the problem for people of this forum wanting to use MP3s and other relatively large sound files.

1) Get a good registry editor (I recommend Resco Explorer's "Resco Registry" tool. Then use it to change the file size limit, found in HKEY_CURRENT_USER/Control Panel/Sounds/. When you find the File Size Limit line at the end, click on it and replace the "307200" limit with whatever (reasonable) # you want. Click Done and you're good to go.

2) Now you have to transfer your sound file from your laptop/desktop to your Q9h. Go ahead and Synchronize your Q9h. Once it finishes synchronizing, find your sound file on your laptop and copy it. Now click on the Explore option on your synchronize window. Go to My Device/Application Data/Sounds/ and paste your sound file. Also paste it into My Documents/My Ringtone.

3) Lastly, you need to change the Sounds settings on your Q9h to use your sound file for whichever events (phone, email, IM) you want. Go to Start...System Tools...Settings...Sounds and scroll through each event list until you find your desired sound.

Enable Network Selection Mode:

HKEY Current User\ControlPanel\PhoneNetSelMode\

Set value "option" from 0 to 1

Restart your device.

Enable band selection:

By doing this you can pick automatic/North America 3G/GSM W850/W1900(3G) 850/1900(GSM) 900/1800 (GSM)

1. Go to Home Screen

2. Type *#1546792*# and then send

3. You will see new screen that indicates that Band

Selection was enabled

4. Now you can go to Settings/Phone/Network/Band

Selection

Enabling Search Frequency:

This hack will allow you to choose the speed at which your phone updates the signal strength icon. Please bear in mind that continuous will have a significant impact on your battery life. The default setting is Medium.

[HKLM\Software\Motorola\SearchFreq] Change the Enable DWord string to 1. Done and done.

Tether With ICS:

1. Navigate to HKLM\Comm\InternetSharing\Settings

2. In here will be a value named "ForceCellConnection"

3. Change "ATT ICS" to "" (make it blank) and reboot your device.

ICS will now give you the option to choose either ATT ICS or MEdia Net. ATT ICS will not work without a tethering plan on your wireless account because of the fact that its set up to connect to a secure WAP network, but MEdia Net will work as long as you have the signal and the basic pay-as-you-go feature (definitely not recommended).

ATT ICS uses "isp.cingular" (Private IP address assigned) whereas MEdia Net uses "wap.cingular" (general internet).

Enable Editing of ATT ICS and Media Net settings:

1. Navigate to HKLM\Comm\ConnMgr\Providers\{7C4B7A38-5FF7-4...}\Connections

2. There will be 2 keys in here. One for ATT ICS and MEdia Net. In those keys there will be a value of ReadOnly

3. Change "ReadOnly" from 1 to 0

4. Restart your device.

5. Upon restart, you may now delete or change the default information.

To restore the "Music" key launching Windows Media Player:

Navigate to HKEY_CURRENT_USER\ControlPanel\Keybd

Change the APP2_path key to read: "\windows\wmplayer.exe"

Restart your device.

Enable editing of your Proxy:

HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{EF097F4 C-DC4B-4c98-8FF6-AEF805DC0E8E}\Cingular WAP

Change "ReadOnly" from 1 to 0, and restart your device Upon restart, you may now delete or change the proxy information.

Change ATT MMS Settings:

HKey_Local_Machine\Software\Motorola\MMS\Profiles\ AT&T MMS

Change the value of "Lock" from 1 to 0. Restart your device.